prefer waypoints of distance < 500 when finding random WPs to route to
[divverent/nexuiz.git] / data / qcsrc / server / bots.qc
1 .float aistatus;
2 float AI_STATUS_ROAMING                         = 1;    // Bot is just crawling the map. No enemies at sight
3 float AI_STATUS_ATTACKING                       = 2;    // There are enemies at sight
4 float AI_STATUS_RUNNING                         = 4;    // Bot is bunny hopping
5 float AI_STATUS_DANGER_AHEAD                    = 8;    // There is lava/slime/trigger_hurt ahead
6 float AI_STATUS_OUT_JUMPPAD                     = 16;   // Trying to get out of a "vertical" jump pad
7 float AI_STATUS_OUT_WATER                       = 32;   // Trying to get out of water
8 float AI_STATUS_WAYPOINT_PERSONAL_LINKING       = 64;   // Waiting for the personal waypoint to be linked
9 float AI_STATUS_WAYPOINT_PERSONAL_GOING         = 128;  // Going to a personal waypoint
10 float AI_STATUS_WAYPOINT_PERSONAL_REACHED       = 256;  // Personal waypoint reached
11
12 // utilities for path debugging
13 #ifdef DEBUG_TRACEWALK
14
15 float DEBUG_NODE_SUCCESS        = 1;
16 float DEBUG_NODE_WARNING        = 2;
17 float DEBUG_NODE_FAIL           = 3;
18
19 vector debuglastnode;
20
21 void debugresetnodes()
22 {
23         debuglastnode = '0 0 0';
24 }
25
26 void debugnode(vector node)
27 {
28         if not(self.classname=="player")
29                 return;
30
31         if(debuglastnode=='0 0 0')
32         {
33                 debuglastnode = node;
34                 return;
35         }
36
37         te_lightning2(world, node, debuglastnode);
38         debuglastnode = node;
39 }
40
41 void debugnodestatus(vector position, float status)
42 {
43         vector color;
44
45         switch (status)
46         {
47                 case DEBUG_NODE_SUCCESS:
48                         color = '0 15 0';
49                         break;
50                 case DEBUG_NODE_WARNING:
51                         color = '15 15 0';
52                         break;
53                 case DEBUG_NODE_FAIL:
54                         color = '15 0 0';
55                         break;
56                 default:
57                         color = '15 15 15';
58         }
59
60         te_customflash(position, 40,  2, color);
61 }
62
63 #endif
64
65 // rough simulation of walking from one point to another to test if a path
66 // can be traveled, used for waypoint linking and havocbot
67
68 vector stepheightvec;
69 float bot_navigation_movemode;
70 float navigation_testtracewalk;
71 float tracewalk(entity e, vector start, vector m1, vector m2, vector end, float movemode)
72 {
73         local vector org;
74         local vector move;
75         local vector dir;
76         local float dist;
77         local float totaldist;
78         local float stepdist;
79         local float yaw;
80         local float ignorehazards;
81         local float swimming;
82
83         #ifdef DEBUG_TRACEWALK
84                 debugresetnodes();
85                 debugnode(start);
86         #endif
87
88         move = end - start;
89         move_z = 0;
90         org = start;
91         dist = totaldist = vlen(move);
92         dir = normalize(move);
93         stepdist = 32;
94         ignorehazards = FALSE;
95
96         // Analyze starting point
97         traceline(start, start, MOVE_NORMAL, e);
98         if (trace_dpstartcontents & (DPCONTENTS_SLIME | DPCONTENTS_LAVA))
99                 ignorehazards = TRUE;
100         else
101         {
102                 traceline( start, start + '0 0 -65536', MOVE_NORMAL, e);
103                 if (trace_dpstartcontents & (DPCONTENTS_SLIME | DPCONTENTS_LAVA))
104                 {
105                         ignorehazards = TRUE;
106                         swimming = TRUE;
107                 }
108         }
109         tracebox(start, m1, m2, start, MOVE_NOMONSTERS, e);
110         if (trace_startsolid)
111         {
112                 // Bad start
113                 #ifdef DEBUG_TRACEWALK
114                         debugnodestatus(start, DEBUG_NODE_FAIL);
115                 #endif
116                 //print("tracewalk: ", vtos(start), " is a bad start\n");
117                 return FALSE;
118         }
119
120         // Movement loop
121         yaw = vectoyaw(move);
122         move = end - org;
123         for (;;)
124         {
125                 if (boxesoverlap(end, end, org + m1 + '-1 -1 -1', org + m2 + '1 1 1'))
126                 {
127                         // Succeeded
128                         #ifdef DEBUG_TRACEWALK
129                                 debugnodestatus(org, DEBUG_NODE_SUCCESS);
130                         #endif
131                         //print("tracewalk: ", vtos(start), " can reach ", vtos(end), "\n");
132                         return TRUE;
133                 }
134                 #ifdef DEBUG_TRACEWALK
135                         debugnode(org);
136                 #endif
137
138                 if (dist <= 0)
139                         break;
140                 if (stepdist > dist)
141                         stepdist = dist;
142                 dist = dist - stepdist;
143                 traceline(org, org, MOVE_NORMAL, e);
144                 if (!ignorehazards)
145                 {
146                         if (trace_dpstartcontents & (DPCONTENTS_SLIME | DPCONTENTS_LAVA))
147                         {
148                                 // hazards blocking path
149                                 #ifdef DEBUG_TRACEWALK
150                                         debugnodestatus(org, DEBUG_NODE_FAIL);
151                                 #endif
152                                 //print("tracewalk: ", vtos(start), " hits a hazard when trying to reach ", vtos(end), "\n");
153                                 return FALSE;
154                         }
155                 }
156                 if (trace_dpstartcontents & DPCONTENTS_LIQUIDSMASK)
157                 {
158                         move = normalize(end - org);
159                         tracebox(org, m1, m2, org + move * stepdist, movemode, e);
160
161                         #ifdef DEBUG_TRACEWALK
162                                 debugnode(trace_endpos);
163                         #endif
164
165                         if (trace_fraction < 1)
166                         {
167                                 swimming = TRUE;
168                                 org = trace_endpos - normalize(org - trace_endpos) * stepdist;
169                                 for(; org_z < end_z + self.maxs_z; org_z += stepdist)
170                                 {
171                                                 #ifdef DEBUG_TRACEWALK
172                                                         debugnode(org);
173                                                 #endif
174                                         if(pointcontents(org) == CONTENT_EMPTY)
175                                                         break;
176                                 }
177
178                                 if not (pointcontents(org + '0 0 1') == CONTENT_EMPTY)
179                                 {
180                                         #ifdef DEBUG_TRACEWALK
181                                                 debugnodestatus(org, DEBUG_NODE_FAIL);
182                                         #endif
183                                         return FALSE;
184                                         //print("tracewalk: ", vtos(start), " failed under water\n");
185                                 }
186                                 continue;
187
188                         }
189                         else
190                                 org = trace_endpos;
191                 }
192                 else
193                 {
194                         move = dir * stepdist + org;
195                         tracebox(org, m1, m2, move, movemode, e);
196
197                         #ifdef DEBUG_TRACEWALK
198                                 debugnode(trace_endpos);
199                         #endif
200
201                         // hit something
202                         if (trace_fraction < 1)
203                         {
204                                 // check if we can walk over this obstacle
205                                 tracebox(org + stepheightvec, m1, m2, move + stepheightvec, movemode, e);
206                                 if (trace_fraction < 1 || trace_startsolid)
207                                 {
208                                         #ifdef DEBUG_TRACEWALK
209                                                 debugnodestatus(trace_endpos, DEBUG_NODE_WARNING);
210                                         #endif
211
212                                         // check for doors
213                                         traceline( org, move, movemode, e);
214                                         if ( trace_ent.classname == "door_rotating" || trace_ent.classname == "door")
215                                         {
216                                                 local vector nextmove;
217                                                 move = trace_endpos;
218                                                 while(trace_ent.classname == "door_rotating" || trace_ent.classname == "door")
219                                                 {
220                                                         nextmove = move + (dir * stepdist);
221                                                         traceline( move, nextmove, movemode, e);
222                                                         move = nextmove;
223                                                 }
224                                         }
225                                         else
226                                         {
227                                                 #ifdef DEBUG_TRACEWALK
228                                                         debugnodestatus(trace_endpos, DEBUG_NODE_FAIL);
229                                                 #endif
230                                                 //print("tracewalk: ", vtos(start), " hit something when trying to reach ", vtos(end), "\n");
231                                                 //te_explosion(trace_endpos);
232                                                 //print(ftos(e.dphitcontentsmask), "\n");
233                                                 return FALSE; // failed
234                                         }
235                                 }
236                                 else
237                                         move = trace_endpos;
238                         }
239                         else
240                                 move = trace_endpos;
241
242                         // trace down from stepheight as far as possible and move there,
243                         // if this starts in solid we try again without the stepup, and
244                         // if that also fails we assume it is a wall
245                         // (this is the same logic as the Quake walkmove function used)
246                         tracebox(move, m1, m2, move + '0 0 -65536', movemode, e);
247
248                         // moved successfully
249                         if(swimming)
250                         {
251                                 local float c;
252                                 c = pointcontents(org + '0 0 1');
253                                 if not(c == CONTENT_WATER || c == CONTENT_LAVA || c == CONTENT_SLIME)
254                                         swimming = FALSE;
255                                 else
256                                         continue;
257                         }
258
259                         org = trace_endpos;
260                 }
261         }
262
263         //print("tracewalk: ", vtos(start), " did not arrive at ", vtos(end), " but at ", vtos(org), "\n");
264
265         // moved but didn't arrive at the intended destination
266         #ifdef DEBUG_TRACEWALK
267                 debugnodestatus(org, DEBUG_NODE_FAIL);
268         #endif
269
270         return FALSE;
271 };
272
273
274 // grenade tracing to decide the best pitch to fire at
275
276 entity tracetossent;
277 entity tracetossfaketarget;
278
279 // traces multiple trajectories to find one that will impact the target
280 // 'end' vector is the place it aims for,
281 // returns TRUE only if it hit targ (don't target non-solid entities)
282 vector findtrajectory_velocity;
283 float findtrajectorywithleading(vector org, vector m1, vector m2, entity targ, float shotspeed, float shotspeedupward, float maxtime, float shotdelay, entity ignore)
284 {
285         local float c, savesolid, shottime;
286         local vector dir, end, v;
287         if (shotspeed < 1)
288                 return FALSE; // could cause division by zero if calculated
289         if (targ.solid < SOLID_BBOX) // SOLID_NOT and SOLID_TRIGGER
290                 return FALSE; // could never hit it
291         if (!tracetossent)
292                 tracetossent = spawn();
293         tracetossent.owner = ignore;
294         setsize(tracetossent, m1, m2);
295         savesolid = targ.solid;
296         targ.solid = SOLID_NOT;
297         shottime = ((vlen(targ.origin - org) / shotspeed) + shotdelay);
298         v = targ.velocity * shottime + targ.origin;
299         tracebox(targ.origin, targ.mins, targ.maxs, v, FALSE, targ);
300         v = trace_endpos;
301         end = v + (targ.mins + targ.maxs) * 0.5;
302         if ((vlen(end - org) / shotspeed + 0.2) > maxtime)
303         {
304                 // out of range
305                 targ.solid = savesolid;
306                 return FALSE;
307         }
308
309         if (!tracetossfaketarget)
310                 tracetossfaketarget = spawn();
311         tracetossfaketarget.solid = savesolid;
312         tracetossfaketarget.movetype = targ.movetype;
313         setmodel(tracetossfaketarget, targ.model); // no low precision
314         tracetossfaketarget.model = targ.model;
315         tracetossfaketarget.modelindex = targ.modelindex;
316         setsize(tracetossfaketarget, targ.mins, targ.maxs);
317         setorigin(tracetossfaketarget, v);
318
319         c = 0;
320         dir = normalize(end - org);
321         while (c < 10) // 10 traces
322         {
323                 setorigin(tracetossent, org); // reset
324                 tracetossent.velocity = findtrajectory_velocity = normalize(dir) * shotspeed + shotspeedupward * '0 0 1';
325                 tracetoss(tracetossent, ignore); // love builtin functions...
326                 if (trace_ent == tracetossfaketarget) // done
327                 {
328                         targ.solid = savesolid;
329
330                         // make it disappear
331                         tracetossfaketarget.solid = SOLID_NOT;
332                         tracetossfaketarget.movetype = MOVETYPE_NONE;
333                         tracetossfaketarget.model = "";
334                         tracetossfaketarget.modelindex = 0;
335                         // relink to remove it from physics considerations
336                         setorigin(tracetossfaketarget, v);
337
338                         return TRUE;
339                 }
340                 dir_z = dir_z + 0.1; // aim up a little more
341                 c = c + 1;
342         }
343         targ.solid = savesolid;
344
345         // make it disappear
346         tracetossfaketarget.solid = SOLID_NOT;
347         tracetossfaketarget.movetype = MOVETYPE_NONE;
348         tracetossfaketarget.model = "";
349         tracetossfaketarget.modelindex = 0;
350         // relink to remove it from physics considerations
351         setorigin(tracetossfaketarget, v);
352
353         // leave a valid one even if it won't reach
354         findtrajectory_velocity = normalize(end - org) * shotspeed + shotspeedupward * '0 0 1';
355         return FALSE;
356 };
357
358
359
360 // lag simulation
361
362 .void(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4) lag_func;
363
364 // upto 5 queued messages
365 .float lag1_time;
366 .float lag1_float1;
367 .float lag1_float2;
368 .entity lag1_entity1;
369 .vector lag1_vec1;
370 .vector lag1_vec2;
371 .vector lag1_vec3;
372 .vector lag1_vec4;
373
374 .float lag2_time;
375 .float lag2_float1;
376 .float lag2_float2;
377 .entity lag2_entity1;
378 .vector lag2_vec1;
379 .vector lag2_vec2;
380 .vector lag2_vec3;
381 .vector lag2_vec4;
382
383 .float lag3_time;
384 .float lag3_float1;
385 .float lag3_float2;
386 .entity lag3_entity1;
387 .vector lag3_vec1;
388 .vector lag3_vec2;
389 .vector lag3_vec3;
390 .vector lag3_vec4;
391
392 .float lag4_time;
393 .float lag4_float1;
394 .float lag4_float2;
395 .entity lag4_entity1;
396 .vector lag4_vec1;
397 .vector lag4_vec2;
398 .vector lag4_vec3;
399 .vector lag4_vec4;
400
401 .float lag5_time;
402 .float lag5_float1;
403 .float lag5_float2;
404 .entity lag5_entity1;
405 .vector lag5_vec1;
406 .vector lag5_vec2;
407 .vector lag5_vec3;
408 .vector lag5_vec4;
409
410 void lag_update()
411 {
412         if (self.lag1_time) if (time > self.lag1_time) {self.lag_func(self.lag1_time, self.lag1_float1, self.lag1_float2, self.lag1_entity1, self.lag1_vec1, self.lag1_vec2, self.lag1_vec3, self.lag1_vec4);self.lag1_time = 0;}
413         if (self.lag2_time) if (time > self.lag2_time) {self.lag_func(self.lag2_time, self.lag2_float1, self.lag2_float2, self.lag2_entity1, self.lag2_vec1, self.lag2_vec2, self.lag2_vec3, self.lag2_vec4);self.lag2_time = 0;}
414         if (self.lag3_time) if (time > self.lag3_time) {self.lag_func(self.lag3_time, self.lag3_float1, self.lag3_float2, self.lag3_entity1, self.lag3_vec1, self.lag3_vec2, self.lag3_vec3, self.lag3_vec4);self.lag3_time = 0;}
415         if (self.lag4_time) if (time > self.lag4_time) {self.lag_func(self.lag4_time, self.lag4_float1, self.lag4_float2, self.lag4_entity1, self.lag4_vec1, self.lag4_vec2, self.lag4_vec3, self.lag4_vec4);self.lag4_time = 0;}
416         if (self.lag5_time) if (time > self.lag5_time) {self.lag_func(self.lag5_time, self.lag5_float1, self.lag5_float2, self.lag5_entity1, self.lag5_vec1, self.lag5_vec2, self.lag5_vec3, self.lag5_vec4);self.lag5_time = 0;}
417 };
418
419 float lag_additem(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
420 {
421         if (self.lag1_time == 0) {self.lag1_time = t;self.lag1_float1 = f1;self.lag1_float2 = f2;self.lag1_entity1 = e1;self.lag1_vec1 = v1;self.lag1_vec2 = v2;self.lag1_vec3 = v3;self.lag1_vec4 = v4;return TRUE;}
422         if (self.lag2_time == 0) {self.lag2_time = t;self.lag2_float1 = f1;self.lag2_float2 = f2;self.lag2_entity1 = e1;self.lag2_vec1 = v1;self.lag2_vec2 = v2;self.lag2_vec3 = v3;self.lag2_vec4 = v4;return TRUE;}
423         if (self.lag3_time == 0) {self.lag3_time = t;self.lag3_float1 = f1;self.lag3_float2 = f2;self.lag3_entity1 = e1;self.lag3_vec1 = v1;self.lag3_vec2 = v2;self.lag3_vec3 = v3;self.lag3_vec4 = v4;return TRUE;}
424         if (self.lag4_time == 0) {self.lag4_time = t;self.lag4_float1 = f1;self.lag4_float2 = f2;self.lag4_entity1 = e1;self.lag4_vec1 = v1;self.lag4_vec2 = v2;self.lag4_vec3 = v3;self.lag4_vec4 = v4;return TRUE;}
425         if (self.lag5_time == 0) {self.lag5_time = t;self.lag5_float1 = f1;self.lag5_float2 = f2;self.lag5_entity1 = e1;self.lag5_vec1 = v1;self.lag5_vec2 = v2;self.lag5_vec3 = v3;self.lag5_vec4 = v4;return TRUE;}
426         // no room for it (what is the best thing to do here??)
427         return FALSE;
428 };
429
430
431 // Random skill system
432 .float bot_thinkskill;
433 .float bot_mouseskill;
434 .float bot_predictionskill;
435 .float bot_offsetskill;
436
437
438 // spawnfunc_waypoint navigation system
439
440 // itemscore = (howmuchmoreIwant / howmuchIcanwant) / itemdistance
441 // waypointscore = 0.7 / waypointdistance
442
443 .entity wp00, wp01, wp02, wp03, wp04, wp05, wp06, wp07;
444 .entity wp08, wp09, wp10, wp11, wp12, wp13, wp14, wp15;
445 .entity wp16, wp17, wp18, wp19, wp20, wp21, wp22, wp23, wp24, wp25, wp26, wp27, wp28, wp29, wp30, wp31;
446 .float wp00mincost, wp01mincost, wp02mincost, wp03mincost, wp04mincost, wp05mincost, wp06mincost, wp07mincost;
447 .float wp08mincost, wp09mincost, wp10mincost, wp11mincost, wp12mincost, wp13mincost, wp14mincost, wp15mincost;
448 .float wp16mincost, wp17mincost, wp18mincost, wp19mincost, wp20mincost, wp21mincost, wp22mincost, wp23mincost, wp24mincost, wp25mincost, wp26mincost, wp27mincost, wp28mincost, wp29mincost, wp30mincost, wp31mincost;
449 .float wpfire, wpcost, wpconsidered;
450 .float wpisbox;
451 .float wpflags;
452 .vector wpnearestpoint;
453 .float wplinked;
454
455 // stack of current goals (the last one of which may be an item or other
456 // desirable object, the rest are typically waypoints to reach it)
457 .entity goalcurrent, goalstack01, goalstack02, goalstack03;
458 .entity goalstack04, goalstack05, goalstack06, goalstack07;
459 .entity goalstack08, goalstack09, goalstack10, goalstack11;
460 .entity goalstack12, goalstack13, goalstack14, goalstack15;
461 .entity goalstack16, goalstack17, goalstack18, goalstack19;
462 .entity goalstack20, goalstack21, goalstack22, goalstack23;
463 .entity goalstack24, goalstack25, goalstack26, goalstack27;
464 .entity goalstack28, goalstack29, goalstack30, goalstack31;
465
466 .entity nearestwaypoint;
467 .float nearestwaypointtimeout;
468
469 // used during navigation_goalrating_begin/end sessions
470 #define MAX_BESTGOALS 3
471 float bestgoalswindex;
472 float bestgoalsrindex;
473 float navigation_bestrating;
474 entity navigation_bestgoals[MAX_BESTGOALS];
475 .float navigation_hasgoals;
476
477 /////////////////////////////////////////////////////////////////////////////
478 // spawnfunc_waypoint management
479 /////////////////////////////////////////////////////////////////////////////
480
481 // waypoints with this flag are not saved, they are automatically generated
482 // waypoints like jump pads, teleporters, and items
483 float WAYPOINTFLAG_GENERATED = 8388608;
484 float WAYPOINTFLAG_ITEM = 4194304;
485 float WAYPOINTFLAG_TELEPORT = 2097152;
486 float WAYPOINTFLAG_NORELINK = 1048576;
487 float WAYPOINTFLAG_PERSONAL = 524288;
488
489 // add a new link to the spawnfunc_waypoint, replacing the furthest link it already has
490 void waypoint_addlink(entity from, entity to)
491 {
492         local float c;
493
494         if (from == to)
495                 return;
496         if (from.wpflags & WAYPOINTFLAG_NORELINK)
497                 return;
498
499         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
500         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
501         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
502         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
503         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
504         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
505         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
506         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
507
508         if (to.wpisbox || from.wpisbox)
509         {
510                 // if either is a box we have to find the nearest points on them to
511                 // calculate the distance properly
512                 local vector v1, v2, m1, m2;
513                 v1 = from.origin;
514                 m1 = to.absmin;
515                 m2 = to.absmax;
516                 v1_x = bound(m1_x, v1_x, m2_x);
517                 v1_y = bound(m1_y, v1_y, m2_y);
518                 v1_z = bound(m1_z, v1_z, m2_z);
519                 v2 = to.origin;
520                 m1 = from.absmin;
521                 m2 = from.absmax;
522                 v2_x = bound(m1_x, v2_x, m2_x);
523                 v2_y = bound(m1_y, v2_y, m2_y);
524                 v2_z = bound(m1_z, v2_z, m2_z);
525                 v2 = to.origin;
526                 c = vlen(v2 - v1);
527         }
528         else
529                 c = vlen(to.origin - from.origin);
530
531         if (from.wp31mincost < c) return;
532         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
533         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
534         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
535         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
536         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
537         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
538         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
539         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
540         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
541         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
542         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
543         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
544         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
545         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
546         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
547         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
548         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
549         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
550         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
551         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
552         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
553         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
554         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
555         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
556         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
557         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
558         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
559         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
560         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
561         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
562         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
563         from.wp00 = to;from.wp00mincost = c;return;
564 };
565
566 // fields you can query using prvm_global server to get some statistics about waypoint linking culling
567 float relink_total, relink_walkculled, relink_pvsculled, relink_lengthculled;
568
569 // relink this spawnfunc_waypoint
570 // (precompile a list of all reachable waypoints from this spawnfunc_waypoint)
571 // (SLOW!)
572 void waypoint_think()
573 {
574         local entity e;
575         local vector sv, sm1, sm2, ev, em1, em2, dv;
576
577         stepheightvec = cvar("sv_stepheight") * '0 0 1';
578         bot_navigation_movemode = ((cvar("bot_navigation_ignoreplayers")) ? MOVE_NOMONSTERS : MOVE_NORMAL);
579
580         //dprint("waypoint_think wpisbox = ", ftos(self.wpisbox), "\n");
581         sm1 = self.origin + self.mins;
582         sm2 = self.origin + self.maxs;
583         for(e = world; (e = find(e, classname, "waypoint")); )
584         {
585                 if (boxesoverlap(self.absmin, self.absmax, e.absmin, e.absmax))
586                 {
587                         waypoint_addlink(self, e);
588                         waypoint_addlink(e, self);
589                 }
590                 else
591                 {
592                         ++relink_total;
593                         if(!checkpvs(self.origin, e))
594                         {
595                                 ++relink_pvsculled;
596                                 continue;
597                         }
598                         sv = e.origin;
599                         sv_x = bound(sm1_x, sv_x, sm2_x);
600                         sv_y = bound(sm1_y, sv_y, sm2_y);
601                         sv_z = bound(sm1_z, sv_z, sm2_z);
602                         ev = self.origin;
603                         em1 = e.origin + e.mins;
604                         em2 = e.origin + e.maxs;
605                         ev_x = bound(em1_x, ev_x, em2_x);
606                         ev_y = bound(em1_y, ev_y, em2_y);
607                         ev_z = bound(em1_z, ev_z, em2_z);
608                         dv = ev - sv;
609                         dv_z = 0;
610                         if (vlen(dv) >= 1050) // max search distance in XY
611                         {
612                                 ++relink_lengthculled;
613                                 continue;
614                         }
615                         navigation_testtracewalk = 0;
616                         if (!self.wpisbox)
617                         {
618                                 tracebox(sv - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, sv, FALSE, self);
619                                 if (!trace_startsolid)
620                                 {
621                                         //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
622                                         sv = trace_endpos + '0 0 1';
623                                 }
624                         }
625                         if (!e.wpisbox)
626                         {
627                                 tracebox(ev - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, ev, FALSE, e);
628                                 if (!trace_startsolid)
629                                 {
630                                         //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
631                                         ev = trace_endpos + '0 0 1';
632                                 }
633                         }
634                         //traceline(self.origin, e.origin, FALSE, world);
635                         //if (trace_fraction == 1)
636                         if (!self.wpisbox && tracewalk(self, sv, PL_MIN, PL_MAX, ev, MOVE_NOMONSTERS))
637                                 waypoint_addlink(self, e);
638                         else
639                                 relink_walkculled += 0.5;
640                         if (!e.wpisbox && tracewalk(e, ev, PL_MIN, PL_MAX, sv, MOVE_NOMONSTERS))
641                                 waypoint_addlink(e, self);
642                         else
643                                 relink_walkculled += 0.5;
644                 }
645         }
646         navigation_testtracewalk = 0;
647         self.wplinked = TRUE;
648 };
649
650 void waypoint_clearlinks(entity wp)
651 {
652         // clear links to other waypoints
653         local float f;
654         f = 10000000;
655         wp.wp00 = wp.wp01 = wp.wp02 = wp.wp03 = wp.wp04 = wp.wp05 = wp.wp06 = wp.wp07 = world;wp.wp00mincost = wp.wp01mincost = wp.wp02mincost = wp.wp03mincost = wp.wp04mincost = wp.wp05mincost = wp.wp06mincost = wp.wp07mincost = f;
656         wp.wp08 = wp.wp09 = wp.wp10 = wp.wp11 = wp.wp12 = wp.wp13 = wp.wp14 = wp.wp15 = world;wp.wp08mincost = wp.wp09mincost = wp.wp10mincost = wp.wp11mincost = wp.wp12mincost = wp.wp13mincost = wp.wp14mincost = wp.wp15mincost = f;
657         wp.wp16 = wp.wp17 = wp.wp18 = wp.wp19 = wp.wp20 = wp.wp21 = wp.wp22 = wp.wp23 = world;wp.wp16mincost = wp.wp17mincost = wp.wp18mincost = wp.wp19mincost = wp.wp20mincost = wp.wp21mincost = wp.wp22mincost = wp.wp23mincost = f;
658         wp.wp24 = wp.wp25 = wp.wp26 = wp.wp27 = wp.wp28 = wp.wp29 = wp.wp30 = wp.wp31 = world;wp.wp24mincost = wp.wp25mincost = wp.wp26mincost = wp.wp27mincost = wp.wp28mincost = wp.wp29mincost = wp.wp30mincost = wp.wp31mincost = f;
659         wp.wplinked = FALSE;
660 };
661
662 // tell a spawnfunc_waypoint to relink
663 void waypoint_schedulerelink(entity wp)
664 {
665         if (wp == world)
666                 return;
667         // TODO: add some sort of visible box in edit mode for box waypoints
668         if (cvar("g_waypointeditor"))
669         {
670                 local vector m1, m2;
671                 m1 = wp.mins;
672                 m2 = wp.maxs;
673                 setmodel(wp, "models/runematch/rune.mdl"); wp.effects = EF_LOWPRECISION;
674                 setsize(wp, m1, m2);
675                 if (wp.wpflags & WAYPOINTFLAG_ITEM)
676                         wp.colormod = '1 0 0';
677                 else if (wp.wpflags & WAYPOINTFLAG_GENERATED)
678                         wp.colormod = '1 1 0';
679                 else
680                         wp.colormod = '1 1 1';
681         }
682         else
683                 wp.model = "";
684         wp.wpisbox = vlen(wp.size) > 0;
685         wp.enemy = world;
686         if (!(wp.wpflags & WAYPOINTFLAG_PERSONAL))
687                 wp.owner = world;
688         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
689                 waypoint_clearlinks(wp);
690         // schedule an actual relink on next frame
691         wp.think = waypoint_think;
692         wp.nextthink = time;
693         wp.effects = EF_LOWPRECISION;
694 }
695
696 // create a new spawnfunc_waypoint and automatically link it to other waypoints, and link
697 // them back to it as well
698 // (suitable for spawnfunc_waypoint editor)
699 entity waypoint_spawn(vector m1, vector m2, float f)
700 {
701         local entity w;
702         local vector org;
703         w = find(world, classname, "waypoint");
704
705         if not(f & WAYPOINTFLAG_PERSONAL)
706         while (w)
707         {
708                 // if a matching spawnfunc_waypoint already exists, don't add a duplicate
709                 if (boxesoverlap(m1, m2, w.absmin, w.absmax))
710                         return w;
711                 w = find(w, classname, "waypoint");
712         }
713
714         w = spawn();
715         w.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP;
716         w.classname = "waypoint";
717         w.wpflags = f;
718         setorigin(w, (m1 + m2) * 0.5);
719         setsize(w, m1 - w.origin, m2 - w.origin);
720         if (vlen(w.size) > 0)
721                 w.wpisbox = TRUE;
722
723         if(!(f & WAYPOINTFLAG_GENERATED))
724         if(!w.wpisbox)
725         {
726                 traceline(w.origin + '0 0 1', w.origin + PL_MIN_z * '0 0 1' - '0 0 1', MOVE_NOMONSTERS, w);
727                 if (trace_fraction < 1)
728                         setorigin(w, trace_endpos - PL_MIN_z * '0 0 1');
729
730                 // check if the start position is stuck
731                 tracebox(w.origin, PL_MIN + '-1 -1 -1', PL_MAX + '1 1 1', w.origin, MOVE_NOMONSTERS, w);
732                 if (trace_startsolid)
733                 {
734                         org = w.origin + '0 0 26';
735                         tracebox(org, PL_MIN, PL_MAX, w.origin, MOVE_WORLDONLY, w);
736                         if(trace_startsolid)
737                         {
738                                 org = w.origin + '2 2 2';
739                                 tracebox(org, PL_MIN, PL_MAX, w.origin, MOVE_WORLDONLY, w);
740                                 if(trace_startsolid)
741                                 {
742                                         org = w.origin + '-2 -2 2';
743                                         tracebox(org, PL_MIN, PL_MAX, w.origin, MOVE_WORLDONLY, w);
744                                         if(trace_startsolid)
745                                         {
746                                                 org = w.origin + '-2 2 2';
747                                                 tracebox(org, PL_MIN, PL_MAX, w.origin, MOVE_WORLDONLY, w);
748                                                 if(trace_startsolid)
749                                                 {
750                                                         org = w.origin + '2 -2 2';
751                                                         tracebox(org, PL_MIN, PL_MAX, w.origin, MOVE_WORLDONLY, w);
752                                                         if(trace_startsolid)
753                                                         {
754                                                                 // this WP is in solid, refuse it
755                                                                 dprint("Killed a waypoint that was stuck in solid at ", vtos(org), "\n");
756                                                                 remove(w);
757                                                                 return world;
758                                                         }
759                                                 }
760                                         }
761                                 }
762                         }
763                         setorigin(w, org * 0.05 + trace_endpos * 0.95); // don't trust the trace fully
764                 }
765
766                 tracebox(w.origin, PL_MIN, PL_MAX, w.origin - '0 0 128', MOVE_WORLDONLY, w);
767                 if(trace_startsolid)
768                 {
769                         dprint("Killed a waypoint that was stuck in solid ", vtos(w.origin), "\n");
770                         remove(w);
771                         return world;
772                 }
773                 if (!trace_inwater)
774                 {
775                         if(trace_fraction == 1)
776                         {
777                                 dprint("Killed a waypoint that was stuck in air at ", vtos(w.origin), "\n");
778                                 remove(w);
779                                 return world;
780                         }
781                         trace_endpos_z += 0.1; // don't trust the trace fully
782 //                      dprint("Moved waypoint at ", vtos(w.origin), " by ", ftos(vlen(w.origin - trace_endpos)));
783 //                      dprint(" direction: ", vtos((trace_endpos - w.origin)), "\n");
784                         setorigin(w, trace_endpos);
785                 }
786         }
787
788         waypoint_clearlinks(w);
789         //waypoint_schedulerelink(w);
790
791         if (cvar("g_waypointeditor"))
792         {
793                 m1 = w.mins;
794                 m2 = w.maxs;
795                 setmodel(w, "models/runematch/rune.mdl"); w.effects = EF_LOWPRECISION;
796                 setsize(w, m1, m2);
797                 if (w.wpflags & WAYPOINTFLAG_ITEM)
798                         w.colormod = '1 0 0';
799                 else if (w.wpflags & WAYPOINTFLAG_GENERATED)
800                         w.colormod = '1 1 0';
801                 else
802                         w.colormod = '1 1 1';
803         }
804         else
805                 w.model = "";
806
807         return w;
808 };
809
810 // spawnfunc_waypoint map entity
811 void spawnfunc_waypoint()
812 {
813         setorigin(self, self.origin);
814         // schedule a relink after other waypoints have had a chance to spawn
815         waypoint_clearlinks(self);
816         //waypoint_schedulerelink(self);
817 };
818
819 // remove a spawnfunc_waypoint, and schedule all neighbors to relink
820 void waypoint_remove(entity e)
821 {
822         // tell all linked waypoints that they need to relink
823         waypoint_schedulerelink(e.wp00);
824         waypoint_schedulerelink(e.wp01);
825         waypoint_schedulerelink(e.wp02);
826         waypoint_schedulerelink(e.wp03);
827         waypoint_schedulerelink(e.wp04);
828         waypoint_schedulerelink(e.wp05);
829         waypoint_schedulerelink(e.wp06);
830         waypoint_schedulerelink(e.wp07);
831         waypoint_schedulerelink(e.wp08);
832         waypoint_schedulerelink(e.wp09);
833         waypoint_schedulerelink(e.wp10);
834         waypoint_schedulerelink(e.wp11);
835         waypoint_schedulerelink(e.wp12);
836         waypoint_schedulerelink(e.wp13);
837         waypoint_schedulerelink(e.wp14);
838         waypoint_schedulerelink(e.wp15);
839         waypoint_schedulerelink(e.wp16);
840         waypoint_schedulerelink(e.wp17);
841         waypoint_schedulerelink(e.wp18);
842         waypoint_schedulerelink(e.wp19);
843         waypoint_schedulerelink(e.wp20);
844         waypoint_schedulerelink(e.wp21);
845         waypoint_schedulerelink(e.wp22);
846         waypoint_schedulerelink(e.wp23);
847         waypoint_schedulerelink(e.wp24);
848         waypoint_schedulerelink(e.wp25);
849         waypoint_schedulerelink(e.wp26);
850         waypoint_schedulerelink(e.wp27);
851         waypoint_schedulerelink(e.wp28);
852         waypoint_schedulerelink(e.wp29);
853         waypoint_schedulerelink(e.wp30);
854         waypoint_schedulerelink(e.wp31);
855         // and now remove the spawnfunc_waypoint
856         remove(e);
857 };
858
859 // empties the map of waypoints
860 void waypoint_removeall()
861 {
862         local entity head, next;
863         head = findchain(classname, "waypoint");
864         while (head)
865         {
866                 next = head.chain;
867                 remove(head);
868                 head = next;
869         }
870 };
871
872 // tell all waypoints to relink
873 // (is this useful at all?)
874 void waypoint_schedulerelinkall()
875 {
876         local entity head;
877         relink_total = relink_walkculled = relink_pvsculled = relink_lengthculled = 0;
878         head = findchain(classname, "waypoint");
879         while (head)
880         {
881                 waypoint_schedulerelink(head);
882                 head = head.chain;
883         }
884 };
885
886 // Load waypoint links from file
887 float botframe_cachedwaypointlinks;
888 float waypoint_load_links()
889 {
890         local string filename, s;
891         local float file, tokens, c, found;
892         local entity wp_from, wp_to;
893         local vector wp_to_pos, wp_from_pos;
894         filename = strcat("maps/", mapname);
895         filename = strcat(filename, ".waypoints.cache");
896         file = fopen(filename, FILE_READ);
897
898         if (file < 0)
899         {
900                 dprint("waypoint links load from ");
901                 dprint(filename);
902                 dprint(" failed\n");
903                 return FALSE;
904         }
905
906         while (1)
907         {
908                 s = fgets(file);
909                 if (!s)
910                         break;
911
912                 tokens = tokenizebyseparator(s, "*");
913
914                 if (tokens!=2)
915                 {
916                         // bad file format
917                         fclose(file);
918                         return FALSE;
919                 }
920
921                 wp_from_pos     = stov(argv(0));
922                 wp_to_pos       = stov(argv(1));
923
924                 // Search "from" waypoint
925                 if(wp_from.origin!=wp_from_pos)
926                 {
927                         wp_from = findradius(wp_from_pos, 1);
928                         found = FALSE;
929                         while(wp_from)
930                         {
931                                 if(vlen(wp_from.origin-wp_from_pos)<1)
932                                 if(wp_from.classname == "waypoint")
933                                 {
934                                         found = TRUE;
935                                         break;
936                                 }
937                                 wp_from = wp_from.chain;
938                         }
939
940                         if(!found)
941                         {
942                                 // can't find that waypoint
943                                 fclose(file);
944                                 return FALSE;
945                         }
946                 }
947
948                 // Search "to" waypoint
949                 wp_to = findradius(wp_to_pos, 1);
950                 found = FALSE;
951                 while(wp_to)
952                 {
953                         if(vlen(wp_to.origin-wp_to_pos)<1)
954                         if(wp_to.classname == "waypoint")
955                         {
956                                 found = TRUE;
957                                 break;
958                         }
959                         wp_to = wp_to.chain;
960                 }
961
962                 if(!found)
963                 {
964                         // can't find that waypoint
965                         fclose(file);
966                         return FALSE;
967                 }
968
969                 ++c;
970                 waypoint_addlink(wp_from, wp_to);
971         }
972
973         fclose(file);
974
975         dprint("loaded ");
976         dprint(ftos(c));
977         dprint(" waypoint links from maps/");
978         dprint(mapname);
979         dprint(".waypoints.cache\n");
980
981         botframe_cachedwaypointlinks = TRUE;
982         return TRUE;
983 };
984
985 float botframe_loadedforcedlinks;
986 void waypoint_load_links_hardwired()
987 {
988         local string filename, s;
989         local float file, tokens, c, found;
990         local entity wp_from, wp_to;
991         local vector wp_to_pos, wp_from_pos;
992         filename = strcat("maps/", mapname);
993         filename = strcat(filename, ".waypoints.hardwired");
994         file = fopen(filename, FILE_READ);
995
996         botframe_loadedforcedlinks = TRUE;
997
998         if (file < 0)
999         {
1000                 dprint("waypoint links load from ");
1001                 dprint(filename);
1002                 dprint(" failed\n");
1003                 return;
1004         }
1005
1006         for (;;)
1007         {
1008                 s = fgets(file);
1009                 if (!s)
1010                         break;
1011
1012                 if(substring(s, 0, 2)=="//")
1013                         continue;
1014
1015                 if(substring(s, 0, 1)=="#")
1016                         continue;
1017
1018                 tokens = tokenizebyseparator(s, "*");
1019
1020                 if (tokens!=2)
1021                         continue;
1022
1023                 wp_from_pos     = stov(argv(0));
1024                 wp_to_pos       = stov(argv(1));
1025
1026                 // Search "from" waypoint
1027                 if(wp_from.origin!=wp_from_pos)
1028                 {
1029                         wp_from = findradius(wp_from_pos, 1);
1030                         found = FALSE;
1031                         while(wp_from)
1032                         {
1033                                 if(vlen(wp_from.origin-wp_from_pos)<1)
1034                                 if(wp_from.classname == "waypoint")
1035                                 {
1036                                         found = TRUE;
1037                                         break;
1038                                 }
1039                                 wp_from = wp_from.chain;
1040                         }
1041
1042                         if(!found)
1043                         {
1044                                 print(strcat("NOTICE: Can not find waypoint at ", vtos(wp_from_pos), ". Path skipped\n"));
1045                                 continue;
1046                         }
1047                 }
1048
1049                 // Search "to" waypoint
1050                 wp_to = findradius(wp_to_pos, 1);
1051                 found = FALSE;
1052                 while(wp_to)
1053                 {
1054                         if(vlen(wp_to.origin-wp_to_pos)<1)
1055                         if(wp_to.classname == "waypoint")
1056                         {
1057                                 found = TRUE;
1058                                 break;
1059                         }
1060                         wp_to = wp_to.chain;
1061                 }
1062
1063                 if(!found)
1064                 {
1065                         print(strcat("NOTICE: Can not find waypoint at ", vtos(wp_to_pos), ". Path skipped\n"));
1066                         continue;
1067                 }
1068
1069                 ++c;
1070                 waypoint_addlink(wp_from, wp_to);
1071         }
1072
1073         fclose(file);
1074
1075         dprint("loaded ");
1076         dprint(ftos(c));
1077         dprint(" waypoint links from maps/");
1078         dprint(mapname);
1079         dprint(".waypoints.hardwired\n");
1080 };
1081
1082
1083 // Save all waypoint links to a file
1084 void waypoint_save_links()
1085 {
1086         local string filename, s;
1087         local float file, c, i;
1088         local entity w, link;
1089         filename = strcat("maps/", mapname);
1090         filename = strcat(filename, ".waypoints.cache");
1091         file = fopen(filename, FILE_WRITE);
1092         if (file < 0)
1093         {
1094                 print("waypoint links save to ");
1095                 print(filename);
1096                 print(" failed\n");
1097         }
1098         c = 0;
1099         w = findchain(classname, "waypoint");
1100         while (w)
1101         {
1102                 for(i=0;i<32;++i)
1103                 {
1104                         // :S
1105                         switch(i)
1106                         {
1107                                 //      for i in $(seq -w 0 31); do echo "case $i:link = w.wp$i; break;"; done;
1108                                 case 00:link = w.wp00; break;
1109                                 case 01:link = w.wp01; break;
1110                                 case 02:link = w.wp02; break;
1111                                 case 03:link = w.wp03; break;
1112                                 case 04:link = w.wp04; break;
1113                                 case 05:link = w.wp05; break;
1114                                 case 06:link = w.wp06; break;
1115                                 case 07:link = w.wp07; break;
1116                                 case 08:link = w.wp08; break;
1117                                 case 09:link = w.wp09; break;
1118                                 case 10:link = w.wp10; break;
1119                                 case 11:link = w.wp11; break;
1120                                 case 12:link = w.wp12; break;
1121                                 case 13:link = w.wp13; break;
1122                                 case 14:link = w.wp14; break;
1123                                 case 15:link = w.wp15; break;
1124                                 case 16:link = w.wp16; break;
1125                                 case 17:link = w.wp17; break;
1126                                 case 18:link = w.wp18; break;
1127                                 case 19:link = w.wp19; break;
1128                                 case 20:link = w.wp20; break;
1129                                 case 21:link = w.wp21; break;
1130                                 case 22:link = w.wp22; break;
1131                                 case 23:link = w.wp23; break;
1132                                 case 24:link = w.wp24; break;
1133                                 case 25:link = w.wp25; break;
1134                                 case 26:link = w.wp26; break;
1135                                 case 27:link = w.wp27; break;
1136                                 case 28:link = w.wp28; break;
1137                                 case 29:link = w.wp29; break;
1138                                 case 30:link = w.wp30; break;
1139                                 case 31:link = w.wp31; break;
1140                         }
1141
1142                         if(link==world)
1143                                 continue;
1144
1145                         s = strcat(vtos(w.origin), "*", vtos(link.origin), "\n");
1146                         fputs(file, s);
1147                         ++c;
1148                 }
1149                 w = w.chain;
1150         }
1151         fclose(file);
1152         botframe_cachedwaypointlinks = TRUE;
1153
1154         print("saved ");
1155         print(ftos(c));
1156         print(" waypoints links to maps/");
1157         print(mapname);
1158         print(".waypoints.cache\n");
1159 };
1160
1161 // save waypoints to gamedir/data/maps/mapname.waypoints
1162 void waypoint_saveall()
1163 {
1164         local string filename, s;
1165         local float file, c;
1166         local entity w;
1167         filename = strcat("maps/", mapname);
1168         filename = strcat(filename, ".waypoints");
1169         file = fopen(filename, FILE_WRITE);
1170         if (file >= 0)
1171         {
1172                 c = 0;
1173                 w = findchain(classname, "waypoint");
1174                 while (w)
1175                 {
1176                         if (!(w.wpflags & WAYPOINTFLAG_GENERATED))
1177                         {
1178                                 s = strcat(vtos(w.origin + w.mins), "\n");
1179                                 s = strcat(s, vtos(w.origin + w.maxs));
1180                                 s = strcat(s, "\n");
1181                                 s = strcat(s, ftos(w.wpflags));
1182                                 s = strcat(s, "\n");
1183                                 fputs(file, s);
1184                                 c = c + 1;
1185                         }
1186                         w = w.chain;
1187                 }
1188                 fclose(file);
1189                 bprint("saved ");
1190                 bprint(ftos(c));
1191                 bprint(" waypoints to maps/");
1192                 bprint(mapname);
1193                 bprint(".waypoints\n");
1194         }
1195         else
1196         {
1197                 bprint("waypoint save to ");
1198                 bprint(filename);
1199                 bprint(" failed\n");
1200         }
1201         waypoint_save_links();
1202         botframe_loadedforcedlinks = FALSE;
1203 };
1204
1205 // load waypoints from file
1206 float waypoint_loadall()
1207 {
1208         local string filename, s;
1209         local float file, cwp, cwb, fl;
1210         local vector m1, m2;
1211         cwp = 0;
1212         cwb = 0;
1213         filename = strcat("maps/", mapname);
1214         filename = strcat(filename, ".waypoints");
1215         file = fopen(filename, FILE_READ);
1216         if (file >= 0)
1217         {
1218                 while (1)
1219                 {
1220                         s = fgets(file);
1221                         if (!s)
1222                                 break;
1223                         m1 = stov(s);
1224                         s = fgets(file);
1225                         if (!s)
1226                                 break;
1227                         m2 = stov(s);
1228                         s = fgets(file);
1229                         if (!s)
1230                                 break;
1231                         fl = stof(s);
1232                         waypoint_spawn(m1, m2, fl);
1233                         if (m1 == m2)
1234                                 cwp = cwp + 1;
1235                         else
1236                                 cwb = cwb + 1;
1237                 }
1238                 fclose(file);
1239                 dprint("loaded ");
1240                 dprint(ftos(cwp));
1241                 dprint(" waypoints and ");
1242                 dprint(ftos(cwb));
1243                 dprint(" wayboxes from maps/");
1244                 dprint(mapname);
1245                 dprint(".waypoints\n");
1246         }
1247         else
1248         {
1249                 dprint("waypoint load from ");
1250                 dprint(filename);
1251                 dprint(" failed\n");
1252         }
1253         return cwp + cwb;
1254 };
1255
1256 void waypoint_spawnforitem(entity e)
1257 {
1258         local entity w;
1259         local vector org;
1260
1261         if(!bot_waypoints_for_items)
1262                 return;
1263
1264         // Center of entity
1265         org = (e.absmax + e.absmin) * 0.5;
1266
1267         // Fix the waypoint altitude if necessary
1268         traceline(org, org + '0 0 -65535', TRUE, e);
1269         if(
1270                 org_z - trace_endpos_z > PL_MAX_z - PL_MIN_z + 10 // If middle of entiy is above player heigth
1271                 || org_z - trace_endpos_z < (PL_MAX_z - PL_MIN_z) * 0.5 // or below half player height
1272         )
1273                 org_z = trace_endpos_z + PL_MAX_z - PL_MIN_z;
1274
1275         // TODO: Cleaner solution
1276         if(e.classname!="item_flag_team")
1277                 e.nearestwaypointtimeout = time + 1000000000;
1278
1279         // don't spawn an item spawnfunc_waypoint if it already exists
1280         w = findchain(classname, "waypoint");
1281         while (w)
1282         {
1283                 if (w.wpisbox)
1284                 {
1285                         if (boxesoverlap(org, org, w.absmin, w.absmax))
1286                         {
1287                                 e.nearestwaypoint = w;
1288                                 return;
1289                         }
1290                 }
1291                 else
1292                 {
1293                         if (vlen(w.origin - org) < 16)
1294                         {
1295                                 e.nearestwaypoint = w;
1296                                 return;
1297                         }
1298                 }
1299                 w = w.chain;
1300         }
1301         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
1302 };
1303
1304 void waypoint_spawnforteleporter(entity e, vector destination, float timetaken)
1305 {
1306         local entity w;
1307         local entity dw;
1308         w = waypoint_spawn(e.absmin, e.absmax, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
1309         dw = waypoint_spawn(destination, destination, WAYPOINTFLAG_GENERATED);
1310         // one way link to the destination
1311         w.wp00 = dw;
1312         w.wp00mincost = timetaken; // this is just for jump pads
1313         // the teleporter's nearest spawnfunc_waypoint is this one
1314         // (teleporters are not goals, so this is probably useless)
1315         e.nearestwaypoint = w;
1316         e.nearestwaypointtimeout = time + 1000000000;
1317 };
1318
1319 entity waypoint_spawnpersonal(vector position)
1320 {
1321         entity w;
1322
1323         // drop the waypoint to a proper location:
1324         //   first move it up by a player height
1325         //   then move it down to hit the floor with player bbox size
1326         traceline(position, position + '0 0 1' * (PL_MAX_z - PL_MIN_z), MOVE_NOMONSTERS, world);
1327         tracebox(trace_endpos, PL_MIN, PL_MAX, trace_endpos + '0 0 -1024', MOVE_NOMONSTERS, world);
1328         if(trace_fraction < 1)
1329                 position = trace_endpos;
1330
1331         w = waypoint_spawn(position, position, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_PERSONAL);
1332         w.nearestwaypoint = world;
1333         w.nearestwaypointtimeout = 0;
1334         w.owner = self;
1335
1336         waypoint_schedulerelink(w);
1337
1338         return w;
1339 };
1340
1341 /////////////////////////////////////////////////////////////////////////////
1342 // goal stack
1343 /////////////////////////////////////////////////////////////////////////////
1344
1345 // completely empty the goal stack, used when deciding where to go
1346 void navigation_clearroute()
1347 {
1348         //print("bot ", etos(self), " clear\n");
1349         self.navigation_hasgoals = FALSE;
1350         self.goalcurrent = world;
1351         self.goalstack01 = world;
1352         self.goalstack02 = world;
1353         self.goalstack03 = world;
1354         self.goalstack04 = world;
1355         self.goalstack05 = world;
1356         self.goalstack06 = world;
1357         self.goalstack07 = world;
1358         self.goalstack08 = world;
1359         self.goalstack09 = world;
1360         self.goalstack10 = world;
1361         self.goalstack11 = world;
1362         self.goalstack12 = world;
1363         self.goalstack13 = world;
1364         self.goalstack14 = world;
1365         self.goalstack15 = world;
1366         self.goalstack16 = world;
1367         self.goalstack17 = world;
1368         self.goalstack18 = world;
1369         self.goalstack19 = world;
1370         self.goalstack20 = world;
1371         self.goalstack21 = world;
1372         self.goalstack22 = world;
1373         self.goalstack23 = world;
1374         self.goalstack24 = world;
1375         self.goalstack25 = world;
1376         self.goalstack26 = world;
1377         self.goalstack27 = world;
1378         self.goalstack28 = world;
1379         self.goalstack29 = world;
1380         self.goalstack30 = world;
1381         self.goalstack31 = world;
1382 };
1383
1384 // add a new goal at the beginning of the stack
1385 // (in other words: add a new prerequisite before going to the later goals)
1386 void navigation_pushroute(entity e)
1387 {
1388         //print("bot ", etos(self), " push ", etos(e), "\n");
1389         self.goalstack31 = self.goalstack30;
1390         self.goalstack30 = self.goalstack29;
1391         self.goalstack29 = self.goalstack28;
1392         self.goalstack28 = self.goalstack27;
1393         self.goalstack27 = self.goalstack26;
1394         self.goalstack26 = self.goalstack25;
1395         self.goalstack25 = self.goalstack24;
1396         self.goalstack24 = self.goalstack23;
1397         self.goalstack23 = self.goalstack22;
1398         self.goalstack22 = self.goalstack21;
1399         self.goalstack21 = self.goalstack20;
1400         self.goalstack20 = self.goalstack19;
1401         self.goalstack19 = self.goalstack18;
1402         self.goalstack18 = self.goalstack17;
1403         self.goalstack17 = self.goalstack16;
1404         self.goalstack16 = self.goalstack15;
1405         self.goalstack15 = self.goalstack14;
1406         self.goalstack14 = self.goalstack13;
1407         self.goalstack13 = self.goalstack12;
1408         self.goalstack12 = self.goalstack11;
1409         self.goalstack11 = self.goalstack10;
1410         self.goalstack10 = self.goalstack09;
1411         self.goalstack09 = self.goalstack08;
1412         self.goalstack08 = self.goalstack07;
1413         self.goalstack07 = self.goalstack06;
1414         self.goalstack06 = self.goalstack05;
1415         self.goalstack05 = self.goalstack04;
1416         self.goalstack04 = self.goalstack03;
1417         self.goalstack03 = self.goalstack02;
1418         self.goalstack02 = self.goalstack01;
1419         self.goalstack01 = self.goalcurrent;
1420         self.goalcurrent = e;
1421 };
1422
1423 // remove first goal from stack
1424 // (in other words: remove a prerequisite for reaching the later goals)
1425 // (used when a spawnfunc_waypoint is reached)
1426 void navigation_poproute()
1427 {
1428         //print("bot ", etos(self), " pop\n");
1429         self.goalcurrent = self.goalstack01;
1430         self.goalstack01 = self.goalstack02;
1431         self.goalstack02 = self.goalstack03;
1432         self.goalstack03 = self.goalstack04;
1433         self.goalstack04 = self.goalstack05;
1434         self.goalstack05 = self.goalstack06;
1435         self.goalstack06 = self.goalstack07;
1436         self.goalstack07 = self.goalstack08;
1437         self.goalstack08 = self.goalstack09;
1438         self.goalstack09 = self.goalstack10;
1439         self.goalstack10 = self.goalstack11;
1440         self.goalstack11 = self.goalstack12;
1441         self.goalstack12 = self.goalstack13;
1442         self.goalstack13 = self.goalstack14;
1443         self.goalstack14 = self.goalstack15;
1444         self.goalstack15 = self.goalstack16;
1445         self.goalstack16 = self.goalstack17;
1446         self.goalstack17 = self.goalstack18;
1447         self.goalstack18 = self.goalstack19;
1448         self.goalstack19 = self.goalstack20;
1449         self.goalstack20 = self.goalstack21;
1450         self.goalstack21 = self.goalstack22;
1451         self.goalstack22 = self.goalstack23;
1452         self.goalstack23 = self.goalstack24;
1453         self.goalstack24 = self.goalstack25;
1454         self.goalstack25 = self.goalstack26;
1455         self.goalstack26 = self.goalstack27;
1456         self.goalstack27 = self.goalstack28;
1457         self.goalstack28 = self.goalstack29;
1458         self.goalstack29 = self.goalstack30;
1459         self.goalstack30 = self.goalstack31;
1460         self.goalstack31 = world;
1461 };
1462
1463 // find the spawnfunc_waypoint near a dynamic goal such as a dropped weapon
1464 entity navigation_findnearestwaypoint(entity ent, float walkfromwp)
1465 {
1466         local entity waylist, w, best;
1467         local float dist, bestdist;
1468         local vector v, org, pm1, pm2;
1469         pm1 = ent.origin + PL_MIN;
1470         pm2 = ent.origin + PL_MAX;
1471         waylist = findchain(classname, "waypoint");
1472
1473         // do two scans, because box test is cheaper
1474         w = waylist;
1475         while (w)
1476         {
1477                 // if object is touching spawnfunc_waypoint
1478                 if(w != ent)
1479                         if (boxesoverlap(pm1, pm2, w.absmin, w.absmax))
1480                                 return w;
1481                 w = w.chain;
1482         }
1483
1484         org = ent.origin + (ent.mins_z - PL_MIN_z) * '0 0 1';
1485         if(ent.tag_entity)
1486                 org = org + ent.tag_entity.origin;
1487         if (navigation_testtracewalk)
1488                 te_plasmaburn(org);
1489         best = world;
1490         bestdist = 1050;
1491
1492         // box check failed, try walk
1493         w = waylist;
1494         while (w)
1495         {
1496                 // if object can walk from spawnfunc_waypoint
1497                 if(w != ent)
1498                 {
1499                         if (w.wpisbox)
1500                         {
1501                                 local vector wm1, wm2;
1502                                 wm1 = w.origin + w.mins;
1503                                 wm2 = w.origin + w.maxs;
1504                                 v_x = bound(wm1_x, org_x, wm2_x);
1505                                 v_y = bound(wm1_y, org_y, wm2_y);
1506                                 v_z = bound(wm1_z, org_z, wm2_z);
1507                         }
1508                         else
1509                                 v = w.origin;
1510                         dist = vlen(v - org);
1511                         if (bestdist > dist)
1512                         {
1513                                 traceline(v, org, TRUE, ent);
1514                                 if (trace_fraction == 1)
1515                                 {
1516                                         if (walkfromwp)
1517                                         {
1518                                                 //print("^1can I reach ", vtos(org), " from ", vtos(v), "?\n");
1519                                                 if (tracewalk(ent, v, PL_MIN, PL_MAX, org, bot_navigation_movemode))
1520                                                 {
1521                                                         bestdist = dist;
1522                                                         best = w;
1523                                                 }
1524                                         }
1525                                         else
1526                                         {
1527                                                 if (tracewalk(ent, org, PL_MIN, PL_MAX, v, bot_navigation_movemode))
1528                                                 {
1529                                                         bestdist = dist;
1530                                                         best = w;
1531                                                 }
1532                                         }
1533                                 }
1534                         }
1535                 }
1536                 w = w.chain;
1537         }
1538         return best;
1539 }
1540
1541 // finds the waypoints near the bot initiating a navigation query
1542 float navigation_markroutes_nearestwaypoints(entity waylist, float maxdist)
1543 {
1544         local entity head;
1545         local vector v, m1, m2, diff;
1546         local float c;
1547 //      navigation_testtracewalk = TRUE;
1548         c = 0;
1549         head = waylist;
1550         while (head)
1551         {
1552                 if (!head.wpconsidered)
1553                 {
1554                         if (head.wpisbox)
1555                         {
1556                                 m1 = head.origin + head.mins;
1557                                 m2 = head.origin + head.maxs;
1558                                 v = self.origin;
1559                                 v_x = bound(m1_x, v_x, m2_x);
1560                                 v_y = bound(m1_y, v_y, m2_y);
1561                                 v_z = bound(m1_z, v_z, m2_z);
1562                         }
1563                         else
1564                                 v = head.origin;
1565                         diff = v - self.origin;
1566                         diff_z = max(0, diff_z);
1567                         if (vlen(diff) < maxdist)
1568                         {
1569                                 head.wpconsidered = TRUE;
1570                                 if (tracewalk(self, self.origin, self.mins, self.maxs, v, bot_navigation_movemode))
1571                                 {
1572                                         head.wpnearestpoint = v;
1573                                         head.wpcost = vlen(v - self.origin) + head.dmg;
1574                                         head.wpfire = 1;
1575                                         head.enemy = world;
1576                                         c = c + 1;
1577                                 }
1578                         }
1579                 }
1580                 head = head.chain;
1581         }
1582         //navigation_testtracewalk = FALSE;
1583         return c;
1584 }
1585
1586 // updates a path link if a spawnfunc_waypoint link is better than the current one
1587 void navigation_markroutes_checkwaypoint(entity w, entity wp, float cost2, vector p)
1588 {
1589         local vector m1;
1590         local vector m2;
1591         local vector v;
1592         if (wp.wpisbox)
1593         {
1594                 m1 = wp.absmin;
1595                 m2 = wp.absmax;
1596                 v_x = bound(m1_x, p_x, m2_x);
1597                 v_y = bound(m1_y, p_y, m2_y);
1598                 v_z = bound(m1_z, p_z, m2_z);
1599         }
1600         else
1601                 v = wp.origin;
1602         cost2 = cost2 + vlen(v);
1603         if (wp.wpcost > cost2)
1604         {
1605                 wp.wpcost = cost2;
1606                 wp.enemy = w;
1607                 wp.wpfire = 1;
1608                 wp.wpnearestpoint = v;
1609         }
1610 };
1611
1612 // queries the entire spawnfunc_waypoint network for pathes leading away from the bot
1613 void navigation_markroutes()
1614 {
1615         local entity w, wp, waylist;
1616         local float searching, cost, cost2;
1617         local vector p;
1618         w = waylist = findchain(classname, "waypoint");
1619         while (w)
1620         {
1621                 w.wpconsidered = FALSE;
1622                 w.wpnearestpoint = '0 0 0';
1623                 w.wpcost = 10000000;
1624                 w.wpfire = 0;
1625                 w.enemy = world;
1626                 w = w.chain;
1627         }
1628
1629         // try a short range search for the nearest waypoints, and expand the search repeatedly if none are found
1630         // as this search is expensive we will use lower values if the bot is on the air
1631         local float i, increment, maxdistance;
1632         if(self.flags & FL_ONGROUND)
1633         {
1634                 increment = 750;
1635                 maxdistance = 50000;
1636         }
1637         else
1638         {
1639                 increment = 500;
1640                 maxdistance = 1500;
1641         }
1642
1643         for(i=increment;!navigation_markroutes_nearestwaypoints(waylist, i)&&i<maxdistance;i+=increment);
1644
1645         searching = TRUE;
1646         while (searching)
1647         {
1648                 searching = FALSE;
1649                 w = waylist;
1650                 while (w)
1651                 {
1652                         if (w.wpfire)
1653                         {
1654                                 searching = TRUE;
1655                                 w.wpfire = 0;
1656                                 cost = w.wpcost;
1657                                 p = w.wpnearestpoint;
1658                                 wp = w.wp00;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp00mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1659                                 wp = w.wp01;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp01mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1660                                 wp = w.wp02;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp02mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1661                                 wp = w.wp03;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp03mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1662                                 wp = w.wp04;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp04mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1663                                 wp = w.wp05;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp05mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1664                                 wp = w.wp06;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp06mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1665                                 wp = w.wp07;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp07mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1666                                 wp = w.wp08;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp08mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1667                                 wp = w.wp09;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp09mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1668                                 wp = w.wp10;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp10mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1669                                 wp = w.wp11;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp11mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1670                                 wp = w.wp12;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp12mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1671                                 wp = w.wp13;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp13mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1672                                 wp = w.wp14;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp14mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1673                                 wp = w.wp15;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp15mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1674                                 wp = w.wp16;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp16mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1675                                 wp = w.wp17;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp17mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1676                                 wp = w.wp18;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp18mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1677                                 wp = w.wp19;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp19mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1678                                 wp = w.wp20;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp20mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1679                                 wp = w.wp21;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp21mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1680                                 wp = w.wp22;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp22mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1681                                 wp = w.wp23;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp23mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1682                                 wp = w.wp24;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp24mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1683                                 wp = w.wp25;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp25mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1684                                 wp = w.wp26;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp26mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1685                                 wp = w.wp27;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp27mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1686                                 wp = w.wp28;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp28mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1687                                 wp = w.wp29;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp29mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1688                                 wp = w.wp30;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp30mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1689                                 wp = w.wp31;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp31mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1690                                 }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
1691                         }
1692                         w = w.chain;
1693                 }
1694         }
1695 };
1696
1697 void navigation_bestgoals_reset()
1698 {
1699         local float i;
1700
1701         bestgoalswindex = 0;
1702         bestgoalsrindex = 0;
1703
1704         for(i=0;i>MAX_BESTGOALS-1;++i)
1705         {
1706                 navigation_bestgoals[i] = world;
1707         }
1708 }
1709
1710 void navigation_add_bestgoal(entity goal)
1711 {
1712         if(bestgoalsrindex>0)
1713         {
1714                 ++bestgoalsrindex;
1715
1716                 if(bestgoalsrindex==MAX_BESTGOALS)
1717                         bestgoalsrindex = 0;
1718         }
1719
1720         if(bestgoalswindex==MAX_BESTGOALS)
1721         {
1722                 bestgoalswindex=0;
1723                 if(bestgoalsrindex==0)
1724                         bestgoalsrindex=1;
1725         }
1726
1727         navigation_bestgoals[bestgoalswindex] = goal;
1728
1729         ++bestgoalswindex;
1730 }
1731
1732 entity navigation_get_bestgoal()
1733 {
1734         local entity ent;
1735
1736         ent = navigation_bestgoals[bestgoalsrindex];
1737         navigation_bestgoals[bestgoalsrindex] = world;
1738
1739         ++bestgoalsrindex;
1740
1741         if(bestgoalsrindex==MAX_BESTGOALS)
1742                 bestgoalsrindex = 0;
1743
1744         return ent;
1745 }
1746
1747 // updates the best goal according to a weighted calculation of travel cost and item value of a new proposed item
1748 .void() havocbot_role;
1749 void() havocbot_role_ctf_offense;
1750 void navigation_routerating(entity e, float f, float rangebias)
1751 {
1752         if (!e)
1753                 return;
1754         //te_wizspike(e.origin);
1755         //bprint(etos(e));
1756         //bprint("\n");
1757         // update the cached spawnfunc_waypoint link on a dynamic item entity
1758         if (time > e.nearestwaypointtimeout)
1759         {
1760                 e.nearestwaypoint = navigation_findnearestwaypoint(e, TRUE);
1761
1762                 // TODO: Cleaner solution, probably handling this timeout from ctf.qc
1763                 if(e.classname=="item_flag_team")
1764                         e.nearestwaypointtimeout = time + 2;
1765                 else
1766                         e.nearestwaypointtimeout = time + random() * 3 + 5;
1767         }
1768
1769         //dprint("-- checking ", e.classname, " (with cost ", ftos(e.nearestwaypoint.wpcost), ")\n");
1770         if (e.nearestwaypoint)
1771         if (e.nearestwaypoint.wpcost < 10000000)
1772         {
1773                 //te_wizspike(e.nearestwaypoint.wpnearestpoint);
1774                 //dprint(e.classname, " ", ftos(f), "/(1+", ftos((e.nearestwaypoint.wpcost + vlen(e.origin - e.nearestwaypoint.wpnearestpoint))), "/", ftos(rangebias), ") = ");
1775                 f = f * rangebias / (rangebias + (e.nearestwaypoint.wpcost + vlen(e.origin - e.nearestwaypoint.wpnearestpoint)));
1776                 //if (self.havocbot_role == havocbot_role_ctf_offense)
1777                 //dprint("considering ", e.classname, " (with rating ", ftos(f), ")\n");
1778                 //dprint(ftos(f));
1779                 if (navigation_bestrating < f)
1780                 {
1781                         navigation_bestrating = f;
1782                         navigation_add_bestgoal(e);
1783                 }
1784         }
1785         //dprint("\n");
1786 };
1787
1788 // adds an item to the the goal stack with the path to a given item
1789 float navigation_routetogoal(entity e, vector startposition)
1790 {
1791         self.goalentity = e;
1792
1793         // if there is no goal, just exit
1794         if (!e)
1795                 return FALSE;
1796
1797         self.navigation_hasgoals = TRUE;
1798
1799         // put the entity on the goal stack
1800         navigation_pushroute(e);
1801
1802         // if it can reach the goal there is nothing more to do
1803         if (tracewalk(self, startposition, PL_MIN, PL_MAX, e.origin, bot_navigation_movemode))
1804                 return TRUE;
1805
1806         // see if there are waypoints describing a path to the item
1807         e = e.nearestwaypoint;
1808         if(e == world)
1809                 return FALSE;
1810
1811         for (;;)
1812         {
1813                 // add the spawnfunc_waypoint to the path
1814                 navigation_pushroute(e);
1815                 e = e.enemy;
1816
1817                 if(e==world)
1818                         break;
1819         }
1820
1821         return FALSE;
1822 };
1823
1824 void navigation_routetogoals()
1825 {
1826         entity g1, g2;
1827
1828         navigation_clearroute();
1829
1830         g1 = navigation_get_bestgoal();
1831         for(;;)
1832         {
1833                 if(g2==world)
1834                         g2 = navigation_get_bestgoal();
1835
1836                 if(g2==world)
1837                 {
1838                         navigation_routetogoal(g1, self.origin);
1839                         return;
1840                 }
1841
1842                 if(navigation_routetogoal(g1, g2.origin))
1843                 {
1844                         g1 = g2;
1845                         g2 = world;
1846                         continue;
1847                 }
1848
1849                 navigation_clearroute();
1850                 g1 = g2;
1851                 g2 = world;
1852         }
1853 }
1854
1855 // removes any currently touching waypoints from the goal stack
1856 // (this is how bots detect if they have reached a goal)
1857 .float lastteleporttime;
1858
1859 void navigation_poptouchedgoals()
1860 {
1861         local vector org, m1, m2;
1862         org = self.origin;
1863         m1 = org + self.mins;
1864         m2 = org + self.maxs;
1865
1866         if(self.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
1867         {
1868                 if(self.lastteleporttime>0)
1869                 if(time-self.lastteleporttime<0.15)
1870                 {
1871                         navigation_poproute();
1872                         return;
1873                 }
1874         }
1875
1876         // Loose goal touching check when running
1877         if(self.aistatus & AI_STATUS_RUNNING)
1878         if(self.goalcurrent.classname=="waypoint")
1879         {
1880                 if(vlen(self.origin - self.goalcurrent.origin)<150)
1881                 {
1882                         traceline(self.origin + self.view_ofs , self.goalcurrent.origin, TRUE, world);
1883                         if(trace_fraction==1)
1884                         {
1885                                 // Detect personal waypoints
1886                                 if(self.aistatus & AI_STATUS_WAYPOINT_PERSONAL_GOING)
1887                                 if(self.goalcurrent.wpflags & WAYPOINTFLAG_PERSONAL && self.goalcurrent.owner==self)
1888                                 {
1889                                         self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_GOING;
1890                                         self.aistatus |= AI_STATUS_WAYPOINT_PERSONAL_REACHED;
1891                                 }
1892
1893                                 navigation_poproute();
1894                         }
1895                 }
1896         }
1897
1898         while (self.goalcurrent && boxesoverlap(m1, m2, self.goalcurrent.absmin, self.goalcurrent.absmax))
1899         {
1900                 // Detect personal waypoints
1901                 if(self.aistatus & AI_STATUS_WAYPOINT_PERSONAL_GOING)
1902                 if(self.goalcurrent.wpflags & WAYPOINTFLAG_PERSONAL && self.goalcurrent.owner==self)
1903                 {
1904                         self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_GOING;
1905                         self.aistatus |= AI_STATUS_WAYPOINT_PERSONAL_REACHED;
1906                 }
1907
1908                 navigation_poproute();
1909         }
1910 }
1911
1912 // begin a goal selection session (queries spawnfunc_waypoint network)
1913 void navigation_goalrating_start()
1914 {
1915         navigation_bestrating = -1;
1916         self.navigation_hasgoals = FALSE;
1917         navigation_bestgoals_reset();
1918         navigation_markroutes();
1919 };
1920
1921 // ends a goal selection session (updates goal stack to the best goal)
1922 void navigation_goalrating_end()
1923 {
1924         navigation_routetogoals();
1925
1926         // Hack: if it can't walk to any goal just move blindly to the first visible waypoint
1927         if not (self.navigation_hasgoals)
1928         {
1929                 dprint(self.netname, " can't walk to any goal, going to a near waypoint\n");
1930
1931                 entity head;
1932
1933                 RandomSelection_Init();
1934                 head = findradius(self.origin,1000);
1935                 while(head)
1936                 {
1937                         if(head.classname=="waypoint")
1938                         if(!(head.wpflags & WAYPOINTFLAG_GENERATED))
1939                         if(vlen(self.origin-head.origin)>100)
1940                         if(checkpvs(self.view_ofs,head))
1941                                 RandomSelection_Add(head, 0, string_null, 1 + (vlen(self.origin-head.origin)<500), 0);
1942                         head = head.chain;
1943                 }
1944                 if(RandomSelection_chosen_ent)
1945                         navigation_routetogoal(RandomSelection_chosen_ent, self.origin);
1946
1947                 self.navigation_hasgoals = FALSE; // Reset this value
1948         }
1949 };
1950
1951
1952 //////////////////////////////////////////////////////////////////////////////
1953 // general bot functions
1954 //////////////////////////////////////////////////////////////////////////////
1955
1956 .float isbot; // true if this client is actually a bot
1957
1958 float skill;
1959 entity bot_list;
1960 .entity nextbot;
1961 .string netname_freeme;
1962 .string playermodel_freeme;
1963 .string playerskin_freeme;
1964
1965 float sv_maxspeed;
1966 .float createdtime;
1967
1968 .float bot_preferredcolors;
1969
1970 .float bot_attack;
1971 .float bot_dodge;
1972 .float bot_dodgerating;
1973
1974 //.float bot_painintensity;
1975 .float bot_firetimer;
1976 //.float bot_oldhealth;
1977 .void() bot_ai;
1978
1979 .entity bot_aimtarg;
1980 .float bot_aimlatency;
1981 .vector bot_aimselforigin;
1982 .vector bot_aimselfvelocity;
1983 .vector bot_aimtargorigin;
1984 .vector bot_aimtargvelocity;
1985
1986 .float bot_pickup;
1987 .float(entity player, entity item) bot_pickupevalfunc;
1988 .float bot_pickupbasevalue;
1989 .float bot_canfire;
1990 .float bot_strategytime;
1991
1992 // used for aiming currently
1993 // FIXME: make the weapon code use these and then replace the calculations here with a call to the weapon code
1994 vector shotorg;
1995 vector shotdir;
1996
1997 .float bot_forced_team;
1998 .float bot_config_loaded;
1999
2000 void bot_setnameandstuff()
2001 {
2002         local string readfile, s;
2003         local float file, tokens;
2004
2005         local string bot_name, bot_model, bot_skin, bot_shirt, bot_pants;
2006         local string name, prefix, suffix;
2007
2008         file = fopen(cvar_string("bot_config_file"), FILE_READ);
2009
2010         if(file < 0)
2011                 print(strcat("Error: Can not open the bot configuration file '",cvar_string("bot_config_file"),"'\n"));
2012         else
2013         {
2014                 RandomSelection_Init();
2015                 for(;;)
2016                 {
2017                         s = fgets(file);
2018                         if(!s)
2019                                 break;
2020                         if(substring(s, 0, 2) == "//")
2021                                 continue;
2022                         if(substring(s, 0, 1) == "#")
2023                                 continue;
2024                         RandomSelection_Add(world, 0, s, 1, 0);
2025                         readfile = RandomSelection_chosen_string;
2026                 }
2027                 fclose(file);
2028         }
2029
2030         tokens = tokenizebyseparator(readfile, "\t");
2031         if(argv(0) != "") bot_name = argv(0);
2032         else bot_name = "Bot";
2033
2034         if(argv(1) != "") bot_model = argv(1);
2035         else bot_model = "marine";
2036
2037         if(argv(2) != "") bot_skin = argv(2);
2038         else bot_skin = "0";
2039
2040         if(argv(3) != "" && stof(argv(3)) >= 0) bot_shirt = argv(3);
2041         else bot_shirt = ftos(floor(random() * 15));
2042
2043         if(argv(4) != "" && stof(argv(4)) >= 0) bot_pants = argv(4);
2044         else bot_pants = ftos(floor(random() * 15));
2045
2046         self.bot_forced_team = stof(argv(5));
2047         self.bot_config_loaded = TRUE;
2048         prefix = cvar_string("bot_prefix");
2049         suffix = cvar_string("bot_suffix");
2050
2051         // this is really only a default, JoinBestTeam is called later
2052         setcolor(self, stof(bot_shirt) * 16 + stof(bot_pants));
2053         self.bot_preferredcolors = self.clientcolors;
2054
2055         // pick the name
2056         if (cvar("bot_usemodelnames"))
2057                 name = bot_model;
2058         else
2059                 name = bot_name;
2060
2061         // pick the model and skin
2062         self.playermodel = self.playermodel_freeme = strzone(strcat("models/player/", bot_model, ".zym"));
2063         self.playerskin = self.playerskin_freeme = strzone(bot_skin);
2064
2065         if(!cvar("g_campaign"))
2066                 self.netname = self.netname_freeme = strzone(strcat(prefix, name, suffix));
2067         else
2068                 self.netname = self.netname_freeme = strzone(name);
2069 };
2070
2071 float bot_custom_weapon;
2072 float bot_distance_far;
2073 float bot_distance_close;
2074
2075 float bot_weapons_far[WEP_LAST];
2076 float bot_weapons_mid[WEP_LAST];
2077 float bot_weapons_close[WEP_LAST];
2078
2079 void bot_custom_weapon_priority_setup()
2080 {
2081         local float tokens, i, c, w;
2082
2083         bot_custom_weapon = FALSE;
2084
2085         if(     cvar_string("bot_ai_custom_weapon_priority_far") == "" ||
2086                 cvar_string("bot_ai_custom_weapon_priority_mid") == "" ||
2087                 cvar_string("bot_ai_custom_weapon_priority_close") == "" ||
2088                 cvar_string("bot_ai_custom_weapon_priority_distances") == ""
2089         )
2090                 return;
2091
2092         // Parse distances
2093         tokens = tokenizebyseparator(cvar_string("bot_ai_custom_weapon_priority_distances")," ");
2094
2095         if (tokens!=2)
2096                 return;
2097
2098         bot_distance_far = stof(argv(0));
2099         bot_distance_close = stof(argv(1));
2100
2101         if(bot_distance_far < bot_distance_close){
2102                 bot_distance_far = stof(argv(1));
2103                 bot_distance_close = stof(argv(0));
2104         }
2105
2106         // Initialize list of weapons
2107         bot_weapons_far[0] = -1;
2108         bot_weapons_mid[0] = -1;
2109         bot_weapons_close[0] = -1;
2110
2111         // Parse far distance weapon priorities
2112         tokens = tokenizebyseparator(cvar_string("bot_ai_custom_weapon_priority_far")," ");
2113
2114         c = 0;
2115         for(i=0; i < tokens && c < WEP_COUNT; ++i){
2116                 w = stof(argv(i));
2117                 if ( w >= WEP_FIRST && w <= WEP_LAST) {
2118                         bot_weapons_far[c] = w;
2119                         ++c;
2120                 }
2121         }
2122         if(c < WEP_COUNT)
2123                 bot_weapons_far[c] = -1;
2124
2125         // Parse mid distance weapon priorities
2126         tokens = tokenizebyseparator(cvar_string("bot_ai_custom_weapon_priority_mid")," ");
2127
2128         c = 0;
2129         for(i=0; i < tokens && c < WEP_COUNT; ++i){
2130                 w = stof(argv(i));
2131                 if ( w >= WEP_FIRST && w <= WEP_LAST) {
2132                         bot_weapons_mid[c] = w;
2133                         ++c;
2134                 }
2135         }
2136         if(c < WEP_COUNT)
2137                 bot_weapons_mid[c] = -1;
2138
2139         // Parse close distance weapon priorities
2140         tokens = tokenizebyseparator(cvar_string("bot_ai_custom_weapon_priority_close")," ");
2141
2142         c = 0;
2143         for(i=0; i < tokens && i < WEP_COUNT; ++i){
2144                 w = stof(argv(i));
2145                 if ( w >= WEP_FIRST && w <= WEP_LAST) {
2146                         bot_weapons_close[c] = w;
2147                         ++c;
2148                 }
2149         }
2150         if(c < WEP_COUNT)
2151                 bot_weapons_close[c] = -1;
2152
2153         bot_custom_weapon = TRUE;
2154 };
2155
2156
2157 void bot_endgame()
2158 {
2159         local entity e;
2160         //dprint("bot_endgame\n");
2161         e = bot_list;
2162         while (e)
2163         {
2164                 setcolor(e, e.bot_preferredcolors);
2165                 e = e.nextbot;
2166         }
2167         // if dynamic waypoints are ever implemented, save them here
2168 };
2169
2170 float bot_ignore_bots; // let bots not attack other bots (only works in non-teamplay)
2171 float bot_shouldattack(entity e)
2172 {
2173         if (e.team == self.team)
2174         {
2175                 if (e == self)
2176                         return FALSE;
2177                 if (teams_matter)
2178                 if (e.team != 0)
2179                         return FALSE;
2180         }
2181         if(!teams_matter)
2182                 if(bot_ignore_bots)
2183                         if(clienttype(e) == CLIENTTYPE_BOT)
2184                                 return FALSE;
2185         if (!e.takedamage)
2186                 return FALSE;
2187         if (e.deadflag)
2188                 return FALSE;
2189         if (e.BUTTON_CHAT)
2190                 return FALSE;
2191         if(g_minstagib)
2192         if(e.items & IT_STRENGTH)
2193                 return FALSE;
2194         if(e.flags & FL_NOTARGET)
2195                 return FALSE;
2196         return TRUE;
2197 };
2198
2199 void bot_lagfunc(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
2200 {
2201         if(self.flags & FL_INWATER)
2202         {
2203                 self.bot_aimtarg = world;
2204                 return;
2205         }
2206         self.bot_aimtarg = e1;
2207         self.bot_aimlatency = self.ping; // FIXME?  Shouldn't this be in the lag item?
2208         self.bot_aimselforigin = v1;
2209         self.bot_aimselfvelocity = v2;
2210         self.bot_aimtargorigin = v3;
2211         self.bot_aimtargvelocity = v4;
2212         if(skill <= 0)
2213                 self.bot_canfire = (random() < 0.8);
2214         else if(skill <= 1)
2215                 self.bot_canfire = (random() < 0.9);
2216         else if(skill <= 2)
2217                 self.bot_canfire = (random() < 0.95);
2218         else
2219                 self.bot_canfire = 1;
2220 };
2221
2222 .float bot_nextthink;
2223 .float bot_badaimtime;
2224 .float bot_aimthinktime;
2225 .float bot_prevaimtime;
2226 .vector bot_mouseaim;
2227 .vector bot_badaimoffset;
2228 .vector bot_1st_order_aimfilter;
2229 .vector bot_2nd_order_aimfilter;
2230 .vector bot_3th_order_aimfilter;
2231 .vector bot_4th_order_aimfilter;
2232 .vector bot_5th_order_aimfilter;
2233 .vector bot_olddesiredang;
2234 float bot_aimdir(vector v, float maxfiredeviation)
2235 {
2236         local float dist, delta_t, blend;
2237         local vector desiredang, diffang;
2238
2239         //dprint("aim ", self.netname, ": old:", vtos(self.v_angle));
2240         // make sure v_angle is sane first
2241         self.v_angle_y = self.v_angle_y - floor(self.v_angle_y / 360) * 360;
2242         self.v_angle_z = 0;
2243
2244         // get the desired angles to aim at
2245         //dprint(" at:", vtos(v));
2246         v = normalize(v);
2247         //te_lightning2(world, self.origin + self.view_ofs, self.origin + self.view_ofs + v * 200);
2248         if (time >= self.bot_badaimtime)
2249         {
2250                 self.bot_badaimtime = max(self.bot_badaimtime + 0.3, time);
2251                 self.bot_badaimoffset = randomvec() * bound(0, 5 - 0.5 * (skill+self.bot_offsetskill), 5) * cvar("bot_ai_aimskill_offset");
2252         }
2253         desiredang = vectoangles(v) + self.bot_badaimoffset;
2254         //dprint(" desired:", vtos(desiredang));
2255         if (desiredang_x >= 180)
2256                 desiredang_x = desiredang_x - 360;
2257         desiredang_x = bound(-90, 0 - desiredang_x, 90);
2258         desiredang_z = self.v_angle_z;
2259         //dprint(" / ", vtos(desiredang));
2260
2261         //// pain throws off aim
2262         //if (self.bot_painintensity)
2263         //{
2264         //      // shake from pain
2265         //      desiredang = desiredang + randomvec() * self.bot_painintensity * 0.2;
2266         //}
2267
2268         // calculate turn angles
2269         diffang = (desiredang - self.bot_olddesiredang);
2270         // wrap yaw turn
2271         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
2272         if (diffang_y >= 180)
2273                 diffang_y = diffang_y - 360;
2274         self.bot_olddesiredang = desiredang;
2275         //dprint(" diff:", vtos(diffang));
2276
2277         delta_t = time-self.bot_prevaimtime;
2278         self.bot_prevaimtime = time;
2279         // Here we will try to anticipate the comming aiming direction
2280         self.bot_1st_order_aimfilter= self.bot_1st_order_aimfilter
2281                 + (diffang * (1 / delta_t)    - self.bot_1st_order_aimfilter) * bound(0, cvar("bot_ai_aimskill_order_filter_1st"),1);
2282         self.bot_2nd_order_aimfilter= self.bot_2nd_order_aimfilter
2283                 + (self.bot_1st_order_aimfilter - self.bot_2nd_order_aimfilter) * bound(0, cvar("bot_ai_aimskill_order_filter_2nd"),1);
2284         self.bot_3th_order_aimfilter= self.bot_3th_order_aimfilter
2285                 + (self.bot_2nd_order_aimfilter - self.bot_3th_order_aimfilter) * bound(0, cvar("bot_ai_aimskill_order_filter_3th"),1);
2286         self.bot_4th_order_aimfilter= self.bot_4th_order_aimfilter
2287                 + (self.bot_3th_order_aimfilter - self.bot_4th_order_aimfilter) * bound(0, cvar("bot_ai_aimskill_order_filter_4th"),1);
2288         self.bot_5th_order_aimfilter= self.bot_5th_order_aimfilter
2289                 + (self.bot_4th_order_aimfilter - self.bot_5th_order_aimfilter) * bound(0, cvar("bot_ai_aimskill_order_filter_5th"),1);
2290
2291         //blend = (bound(0,skill,10)*0.1)*pow(1-bound(0,skill,10)*0.05,2.5)*5.656854249; //Plot formule before changing !
2292         blend = bound(0,skill,10)*0.1;
2293         desiredang = desiredang + blend *
2294         (
2295                   self.bot_1st_order_aimfilter * cvar("bot_ai_aimskill_order_mix_1st")
2296                 + self.bot_2nd_order_aimfilter * cvar("bot_ai_aimskill_order_mix_2nd")
2297                 + self.bot_3th_order_aimfilter * cvar("bot_ai_aimskill_order_mix_3th")
2298                 + self.bot_4th_order_aimfilter * cvar("bot_ai_aimskill_order_mix_4th")
2299                 + self.bot_5th_order_aimfilter * cvar("bot_ai_aimskill_order_mix_5th")
2300         );
2301
2302         // calculate turn angles
2303         diffang = desiredang - self.bot_mouseaim;
2304         // wrap yaw turn
2305         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
2306         if (diffang_y >= 180)
2307                 diffang_y = diffang_y - 360;
2308         //dprint(" diff:", vtos(diffang));
2309
2310         if (time >= self.bot_aimthinktime)
2311         {
2312                 self.bot_aimthinktime = max(self.bot_aimthinktime + 0.5 - 0.05*(skill+self.bot_thinkskill), time);
2313                 self.bot_mouseaim = self.bot_mouseaim + diffang * (1-random()*0.1*bound(1,10-skill,10));
2314         }
2315
2316         //self.v_angle = self.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
2317
2318         diffang = self.bot_mouseaim - desiredang;
2319         // wrap yaw turn
2320         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
2321         if (diffang_y >= 180)
2322                 diffang_y = diffang_y - 360;
2323         desiredang = desiredang + diffang * bound(0,cvar("bot_ai_aimskill_think"),1);
2324
2325         // calculate turn angles
2326         diffang = desiredang - self.v_angle;
2327         // wrap yaw turn
2328         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
2329         if (diffang_y >= 180)
2330                 diffang_y = diffang_y - 360;
2331         //dprint(" diff:", vtos(diffang));
2332
2333         // jitter tracking
2334         dist = vlen(diffang);
2335         //diffang = diffang + randomvec() * (dist * 0.05 * (3.5 - bound(0, skill, 3)));
2336
2337         // turn
2338         local float r, fixedrate, blendrate;
2339         fixedrate = cvar("bot_ai_aimskill_fixedrate") / bound(1,dist,1000);
2340         blendrate = cvar("bot_ai_aimskill_blendrate");
2341         r = max(fixedrate, blendrate);
2342         //self.v_angle = self.v_angle + diffang * bound(frametime, r * frametime * (2+skill*skill*0.05-random()*0.05*(10-skill)), 1);
2343         self.v_angle = self.v_angle + diffang * bound(delta_t, r * delta_t * (2+pow(skill+self.bot_mouseskill,3)*0.005-random()), 1);
2344         self.v_angle = self.v_angle * bound(0,cvar("bot_ai_aimskill_mouse"),1) + desiredang * bound(0,(1-cvar("bot_ai_aimskill_mouse")),1);
2345         //self.v_angle = self.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
2346         //self.v_angle = self.v_angle + diffang * (1/ blendrate);
2347         self.v_angle_z = 0;
2348         self.v_angle_y = self.v_angle_y - floor(self.v_angle_y / 360) * 360;
2349         //dprint(" turn:", vtos(self.v_angle));
2350
2351         makevectors(self.v_angle);
2352         shotorg = self.origin + self.view_ofs;
2353         shotdir = v_forward;
2354
2355         //dprint(" dir:", vtos(v_forward));
2356         //te_lightning2(world, shotorg, shotorg + shotdir * 100);
2357
2358         // calculate turn angles again
2359         //diffang = desiredang - self.v_angle;
2360         //diffang_y = diffang_y - floor(diffang_y / 360) * 360;
2361         //if (diffang_y >= 180)
2362         //      diffang_y = diffang_y - 360;
2363
2364         //dprint("e ", vtos(diffang), " < ", ftos(maxfiredeviation), "\n");
2365
2366         // decide whether to fire this time
2367         // note the maxfiredeviation is in degrees so this has to convert to radians first
2368         //if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
2369         if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
2370         if (vlen(trace_endpos-shotorg) < 500+500*bound(0, skill, 10) || random()*random()>bound(0,skill*0.05,1))
2371                 self.bot_firetimer = time + bound(0.1, 0.5-skill*0.05, 0.5);
2372         //traceline(shotorg,shotorg+shotdir*1000,FALSE,world);
2373         //dprint(ftos(maxfiredeviation),"\n");
2374         //dprint(" diff:", vtos(diffang), "\n");
2375
2376         return self.bot_canfire && (time < self.bot_firetimer);
2377 };
2378
2379 vector bot_shotlead(vector targorigin, vector targvelocity, float shotspeed, float shotdelay)
2380 {
2381         // Try to add code here that predicts gravity effect here, no clue HOW to though ... well not yet atleast...
2382         return targorigin + targvelocity * (shotdelay + vlen(targorigin - shotorg) / shotspeed);
2383 };
2384
2385 float bot_aim(float shotspeed, float shotspeedupward, float maxshottime, float applygravity)
2386 {
2387         local float f, r;
2388         local vector v;
2389         /*
2390         eprint(self);
2391         dprint("bot_aim(", ftos(shotspeed));
2392         dprint(", ", ftos(shotspeedupward));
2393         dprint(", ", ftos(maxshottime));
2394         dprint(", ", ftos(applygravity));
2395         dprint(");\n");
2396         */
2397         if (!shotspeed)
2398         {
2399                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " shotspeed is zero!\n");
2400                 shotspeed = 1000000;
2401         }
2402         if (!maxshottime)
2403         {
2404                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " maxshottime is zero!\n");
2405                 maxshottime = 1;
2406         }
2407         makevectors(self.v_angle);
2408         shotorg = self.origin + self.view_ofs;
2409         shotdir = v_forward;
2410         v = bot_shotlead(self.bot_aimtargorigin, self.bot_aimtargvelocity, shotspeed, self.bot_aimlatency);
2411         local float distanceratio;
2412         distanceratio =sqrt(bound(0,skill,10000))*0.3*(vlen(v-shotorg)-100)/cvar("bot_ai_aimskill_firetolerance_distdegrees");
2413         distanceratio = bound(0,distanceratio,1);
2414         r =  (cvar("bot_ai_aimskill_firetolerance_maxdegrees")-cvar("bot_ai_aimskill_firetolerance_mindegrees"))
2415                 * (1-distanceratio) + cvar("bot_ai_aimskill_firetolerance_mindegrees");
2416         if (applygravity && self.bot_aimtarg)
2417         {
2418                 if (!findtrajectorywithleading(shotorg, '0 0 0', '0 0 0', self.bot_aimtarg, shotspeed, shotspeedupward, maxshottime, 0, self))
2419                         return FALSE;
2420                 f = bot_aimdir(findtrajectory_velocity - shotspeedupward * '0 0 1', r);
2421         }
2422         else
2423         {
2424                 f = bot_aimdir(v - shotorg, r);
2425                 //dprint("AIM: ");dprint(vtos(self.bot_aimtargorigin));dprint(" + ");dprint(vtos(self.bot_aimtargvelocity));dprint(" * ");dprint(ftos(self.bot_aimlatency + vlen(self.bot_aimtargorigin - shotorg) / shotspeed));dprint(" = ");dprint(vtos(v));dprint(" : aimdir = ");dprint(vtos(normalize(v - shotorg)));dprint(" : ");dprint(vtos(shotdir));dprint("\n");
2426                 traceline(shotorg, shotorg + shotdir * 10000, FALSE, self);
2427                 if (trace_ent.takedamage)
2428                 if (trace_fraction < 1)
2429                 if (!bot_shouldattack(trace_ent))
2430                         return FALSE;
2431                 traceline(shotorg, self.bot_aimtargorigin, FALSE, self);
2432                 if (trace_fraction < 1)
2433                 if (trace_ent != self.enemy)
2434                 if (!bot_shouldattack(trace_ent))
2435                         return FALSE;
2436         }
2437         if (r > maxshottime * shotspeed)
2438                 return FALSE;
2439         return f;
2440 };
2441
2442 // TODO: move this painintensity code to the player damage code
2443 void bot_think()
2444 {
2445         if (self.bot_nextthink > time)
2446                 return;
2447
2448         self.flags &~= FL_GODMODE;
2449         if(cvar("bot_god"))
2450                 self.flags |= FL_GODMODE;
2451
2452         self.bot_nextthink = self.bot_nextthink + cvar("bot_ai_thinkinterval");
2453         //if (self.bot_painintensity > 0)
2454         //      self.bot_painintensity = self.bot_painintensity - (skill + 1) * 40 * frametime;
2455
2456         //self.bot_painintensity = self.bot_painintensity + self.bot_oldhealth - self.health;
2457         //self.bot_painintensity = bound(0, self.bot_painintensity, 100);
2458
2459         if(time < game_starttime || ((cvar("g_campaign") && !campaign_bots_may_start)))
2460         {
2461                 self.nextthink = time + 0.5;
2462                 return;
2463         }
2464
2465         if (self.fixangle)
2466         {
2467                 self.v_angle = self.angles;
2468                 self.v_angle_z = 0;
2469                 self.fixangle = FALSE;
2470         }
2471
2472         self.dmg_take = 0;
2473         self.dmg_save = 0;
2474         self.dmg_inflictor = world;
2475
2476         // calculate an aiming latency based on the skill setting
2477         // (simulated network latency + naturally delayed reflexes)
2478         //self.ping = 0.7 - bound(0, 0.05 * skill, 0.5); // moved the reflexes to bot_aimdir (under the name 'think')
2479         // minimum ping 20+10 random
2480         self.ping = bound(0,0.07 - bound(0, skill * 0.005,0.05)+random()*0.01,0.65); // Now holds real lag to server, and higer skill players take a less laggy server
2481         // skill 10 = ping 0.2 (adrenaline)
2482         // skill 0 = ping 0.7 (slightly drunk)
2483
2484         // clear buttons
2485         self.BUTTON_ATCK = 0;
2486         self.button1 = 0;
2487         self.BUTTON_JUMP = 0;
2488         self.BUTTON_ATCK2 = 0;
2489         self.BUTTON_ZOOM = 0;
2490         self.BUTTON_CROUCH = 0;
2491         self.BUTTON_HOOK = 0;
2492         self.BUTTON_INFO = 0;
2493         self.button8 = 0;
2494         self.BUTTON_CHAT = 0;
2495         self.BUTTON_USE = 0;
2496
2497         // if dead, just wait until we can respawn
2498         if (self.deadflag)
2499         {
2500                 if (self.deadflag == DEAD_DEAD)
2501                 {
2502                         self.BUTTON_JUMP = 1; // press jump to respawn
2503                         self.bot_strategytime = 0;
2504                 }
2505         }
2506
2507         // now call the current bot AI (havocbot for example)
2508         self.bot_ai();
2509 };
2510
2511 entity bot_strategytoken;
2512 float bot_strategytoken_taken;
2513 entity player_list;
2514 .entity nextplayer;
2515 void bot_relinkplayerlist()
2516 {
2517         local entity e;
2518         local entity prevbot;
2519         player_count = 0;
2520         currentbots = 0;
2521         player_list = e = findchainflags(flags, FL_CLIENT);
2522         bot_list = world;
2523         prevbot = world;
2524         while (e)
2525         {
2526                 player_count = player_count + 1;
2527                 e.nextplayer = e.chain;
2528                 if (clienttype(e) == CLIENTTYPE_BOT)
2529                 {
2530                         if (prevbot)
2531                                 prevbot.nextbot = e;
2532                         else
2533                         {
2534                                 bot_list = e;
2535                                 bot_list.nextbot = world;
2536                         }
2537                         prevbot = e;
2538                         currentbots = currentbots + 1;
2539                 }
2540                 e = e.chain;
2541         }
2542         dprint(strcat("relink: ", ftos(currentbots), " bots seen.\n"));
2543         bot_strategytoken = bot_list;
2544         bot_strategytoken_taken = TRUE;
2545 };
2546
2547 void() havocbot_setupbot;
2548 float JoinBestTeam(entity pl, float only_return_best, float forcebestteam);
2549
2550 void bot_clientdisconnect()
2551 {
2552         if (clienttype(self) != CLIENTTYPE_BOT)
2553                 return;
2554         if(self.netname_freeme)
2555                 strunzone(self.netname_freeme);
2556         if(self.playermodel_freeme)
2557                 strunzone(self.playermodel_freeme);
2558         if(self.playerskin_freeme)
2559                 strunzone(self.playerskin_freeme);
2560         self.netname_freeme = string_null;
2561         self.playermodel_freeme = string_null;
2562         self.playerskin_freeme = string_null;
2563 }
2564
2565 void bot_clientconnect()
2566 {
2567         if (clienttype(self) != CLIENTTYPE_BOT)
2568                 return;
2569         self.bot_preferredcolors = self.clientcolors;
2570         self.bot_nextthink = time - random();
2571         self.lag_func = bot_lagfunc;
2572         self.isbot = TRUE;
2573         self.createdtime = self.nextthink;
2574
2575         if(!self.bot_config_loaded) // This is needed so team overrider doesn't break between matches
2576                 bot_setnameandstuff();
2577
2578         if(self.bot_forced_team==1)
2579                 self.team = COLOR_TEAM1;
2580         else if(self.bot_forced_team==2)
2581                 self.team = COLOR_TEAM2;
2582         else if(self.bot_forced_team==3)
2583                 self.team = COLOR_TEAM3;
2584         else if(self.bot_forced_team==4)
2585                 self.team = COLOR_TEAM4;
2586         else
2587                 JoinBestTeam(self, FALSE, TRUE);
2588
2589         havocbot_setupbot();
2590         self.bot_mouseskill=random()-0.5;
2591         self.bot_thinkskill=random()-0.5;
2592         self.bot_predictionskill=random()-0.5;
2593         self.bot_offsetskill=random()-0.5;
2594 };
2595
2596 entity bot_spawn()
2597 {
2598         local entity oldself, bot;
2599         bot = spawnclient();
2600         if (bot)
2601         {
2602                 currentbots = currentbots + 1;
2603                 oldself = self;
2604                 self = bot;
2605                 bot_setnameandstuff();
2606                 ClientConnect();
2607                 PutClientInServer();
2608                 self = oldself;
2609         }
2610         return bot;
2611 };
2612
2613 void CheckAllowedTeams(entity for_whom); void GetTeamCounts(entity other); float c1, c2, c3, c4;
2614 void bot_removefromlargestteam()
2615 {
2616         local float besttime, bestcount, thiscount;
2617         local entity best, head;
2618         CheckAllowedTeams(world);
2619         GetTeamCounts(world);
2620         head = findchainfloat(isbot, TRUE);
2621         if (!head)
2622                 return;
2623         best = head;
2624         besttime = head.createdtime;
2625         bestcount = 0;
2626         while (head)
2627         {
2628                 if(head.team == COLOR_TEAM1)
2629                         thiscount = c1;
2630                 else if(head.team == COLOR_TEAM2)
2631                         thiscount = c2;
2632                 else if(head.team == COLOR_TEAM3)
2633                         thiscount = c3;
2634                 else if(head.team == COLOR_TEAM4)
2635                         thiscount = c4;
2636                 else
2637                         thiscount = 0;
2638                 if (thiscount > bestcount)
2639                 {
2640                         bestcount = thiscount;
2641                         besttime = head.createdtime;
2642                         best = head;
2643                 }
2644                 else if (thiscount == bestcount && besttime < head.createdtime)
2645                 {
2646                         besttime = head.createdtime;
2647                         best = head;
2648                 }
2649                 head = head.chain;
2650         }
2651         currentbots = currentbots - 1;
2652         dropclient(best);
2653 };
2654
2655 void bot_removenewest()
2656 {
2657         local float besttime;
2658         local entity best, head;
2659
2660         if(teams_matter)
2661         {
2662                 bot_removefromlargestteam();
2663                 return;
2664         }
2665
2666         head = findchainfloat(isbot, TRUE);
2667         if (!head)
2668                 return;
2669         best = head;
2670         besttime = head.createdtime;
2671         while (head)
2672         {
2673                 if (besttime < head.createdtime)
2674                 {
2675                         besttime = head.createdtime;
2676                         best = head;
2677                 }
2678                 head = head.chain;
2679         }
2680         currentbots = currentbots - 1;
2681         dropclient(best);
2682 };
2683
2684 float botframe_waypointeditorlightningtime;
2685 void botframe_showwaypointlinks()
2686 {
2687         local entity player, head, w;
2688         if (time < botframe_waypointeditorlightningtime)
2689                 return;
2690         botframe_waypointeditorlightningtime = time + 0.5;
2691         player = find(world, classname, "player");
2692         while (player)
2693         {
2694                 if (!player.isbot)
2695                 if (player.flags & FL_ONGROUND || player.waterlevel > WATERLEVEL_NONE)
2696                 {
2697                         //navigation_testtracewalk = TRUE;
2698                         head = navigation_findnearestwaypoint(player, FALSE);
2699                 //      print("currently selected WP is ", etos(head), "\n");
2700                         //navigation_testtracewalk = FALSE;
2701                         if (head)
2702                         {
2703                                 w = head     ;if (w) te_lightning2(world, w.origin, player.origin);
2704                                 w = head.wp00;if (w) te_lightning2(world, w.origin, head.origin);
2705                                 w = head.wp01;if (w) te_lightning2(world, w.origin, head.origin);
2706                                 w = head.wp02;if (w) te_lightning2(world, w.origin, head.origin);
2707                                 w = head.wp03;if (w) te_lightning2(world, w.origin, head.origin);
2708                                 w = head.wp04;if (w) te_lightning2(world, w.origin, head.origin);
2709                                 w = head.wp05;if (w) te_lightning2(world, w.origin, head.origin);
2710                                 w = head.wp06;if (w) te_lightning2(world, w.origin, head.origin);
2711                                 w = head.wp07;if (w) te_lightning2(world, w.origin, head.origin);
2712                                 w = head.wp08;if (w) te_lightning2(world, w.origin, head.origin);
2713                                 w = head.wp09;if (w) te_lightning2(world, w.origin, head.origin);
2714                                 w = head.wp10;if (w) te_lightning2(world, w.origin, head.origin);
2715                                 w = head.wp11;if (w) te_lightning2(world, w.origin, head.origin);
2716                                 w = head.wp12;if (w) te_lightning2(world, w.origin, head.origin);
2717                                 w = head.wp13;if (w) te_lightning2(world, w.origin, head.origin);
2718                                 w = head.wp14;if (w) te_lightning2(world, w.origin, head.origin);
2719                                 w = head.wp15;if (w) te_lightning2(world, w.origin, head.origin);
2720                                 w = head.wp16;if (w) te_lightning2(world, w.origin, head.origin);
2721                                 w = head.wp17;if (w) te_lightning2(world, w.origin, head.origin);
2722                                 w = head.wp18;if (w) te_lightning2(world, w.origin, head.origin);
2723                                 w = head.wp19;if (w) te_lightning2(world, w.origin, head.origin);
2724                                 w = head.wp20;if (w) te_lightning2(world, w.origin, head.origin);
2725                                 w = head.wp21;if (w) te_lightning2(world, w.origin, head.origin);
2726                                 w = head.wp22;if (w) te_lightning2(world, w.origin, head.origin);
2727                                 w = head.wp23;if (w) te_lightning2(world, w.origin, head.origin);
2728                                 w = head.wp24;if (w) te_lightning2(world, w.origin, head.origin);
2729                                 w = head.wp25;if (w) te_lightning2(world, w.origin, head.origin);
2730                                 w = head.wp26;if (w) te_lightning2(world, w.origin, head.origin);
2731                                 w = head.wp27;if (w) te_lightning2(world, w.origin, head.origin);
2732                                 w = head.wp28;if (w) te_lightning2(world, w.origin, head.origin);
2733                                 w = head.wp29;if (w) te_lightning2(world, w.origin, head.origin);
2734                                 w = head.wp30;if (w) te_lightning2(world, w.origin, head.origin);
2735                                 w = head.wp31;if (w) te_lightning2(world, w.origin, head.origin);
2736                         }
2737                 }
2738                 player = find(player, classname, "player");
2739         }
2740 };
2741
2742 entity botframe_dangerwaypoint;
2743 void botframe_updatedangerousobjects(float maxupdate)
2744 {
2745         local entity head, bot_dodgelist;
2746         local vector m1, m2, v;
2747         local float c, d, danger;
2748         c = 0;
2749         bot_dodgelist = findchainfloat(bot_dodge, TRUE);
2750         botframe_dangerwaypoint = find(botframe_dangerwaypoint, classname, "waypoint");
2751         while (botframe_dangerwaypoint != world)
2752         {
2753                 danger = 0;
2754                 m1 = botframe_dangerwaypoint.mins;
2755                 m2 = botframe_dangerwaypoint.maxs;
2756                 head = bot_dodgelist;
2757                 while (head)
2758                 {
2759                         v = head.origin;
2760                         v_x = bound(m1_x, v_x, m2_x);
2761                         v_y = bound(m1_y, v_y, m2_y);
2762                         v_z = bound(m1_z, v_z, m2_z);
2763                         d = head.bot_dodgerating - vlen(head.origin - v);
2764                         if (d > 0)
2765                         {
2766                                 traceline(head.origin, v, TRUE, world);
2767                                 if (trace_fraction == 1)
2768                                         danger = danger + d;
2769                         }
2770                         head = head.chain;
2771                 }
2772                 botframe_dangerwaypoint.dmg = danger;
2773                 c = c + 1;
2774                 if (c >= maxupdate)
2775                         break;
2776                 botframe_dangerwaypoint = find(botframe_dangerwaypoint, classname, "waypoint");
2777         }
2778 };
2779
2780
2781 float botframe_spawnedwaypoints;
2782 float botframe_nextthink;
2783 float botframe_nextdangertime;
2784
2785 float autoskill_nextthink;
2786 .float totalfrags_lastcheck;
2787 void autoskill(float factor)
2788 {
2789         float bestbot;
2790         float bestplayer;
2791         entity head;
2792
2793         bestbot = -1;
2794         bestplayer = -1;
2795         FOR_EACH_PLAYER(head)
2796         {
2797                 if(clienttype(head) == CLIENTTYPE_REAL)
2798                         bestplayer = max(bestplayer, head.totalfrags - head.totalfrags_lastcheck);
2799                 else
2800                         bestbot = max(bestbot, head.totalfrags - head.totalfrags_lastcheck);
2801         }
2802
2803         dprint("autoskill: best player got ", ftos(bestplayer), ", ");
2804         dprint("best bot got ", ftos(bestbot), "; ");
2805         if(bestbot < 0 || bestplayer < 0)
2806         {
2807                 dprint("not doing anything\n");
2808                 // don't return, let it reset all counters below
2809         }
2810         else if(bestbot <= bestplayer * factor - 2)
2811         {
2812                 if(cvar("skill") < 17)
2813                 {
2814                         dprint("2 frags difference, increasing skill\n");
2815                         cvar_set("skill", ftos(cvar("skill") + 1));
2816                         bprint("^2SKILL UP!^7 Now at level ", ftos(cvar("skill")), "\n");
2817                 }
2818         }
2819         else if(bestbot >= bestplayer * factor + 2)
2820         {
2821                 if(cvar("skill") > 0)
2822                 {
2823                         dprint("2 frags difference, decreasing skill\n");
2824                         cvar_set("skill", ftos(cvar("skill") - 1));
2825                         bprint("^1SKILL DOWN!^7 Now at level ", ftos(cvar("skill")), "\n");
2826                 }
2827         }
2828         else
2829         {
2830                 dprint("not doing anything\n");
2831                 return;
2832                 // don't reset counters, wait for them to accumulate
2833         }
2834
2835         FOR_EACH_PLAYER(head)
2836                 head.totalfrags_lastcheck = head.totalfrags;
2837 }
2838
2839 float bot_cvar_nextthink;
2840 void bot_serverframe()
2841 {
2842         float realplayers, bots, activerealplayers;
2843         entity head;
2844
2845         if (intermission_running)
2846                 return;
2847
2848         if (time < 2)
2849                 return;
2850
2851         stepheightvec = cvar("sv_stepheight") * '0 0 1';
2852         bot_navigation_movemode = ((cvar("bot_navigation_ignoreplayers")) ? MOVE_NOMONSTERS : MOVE_NORMAL);
2853
2854         if(time > autoskill_nextthink)
2855         {
2856                 float a;
2857                 a = cvar("skill_auto");
2858                 if(a)
2859                         autoskill(a);
2860                 autoskill_nextthink = time + 5;
2861         }
2862
2863         activerealplayers = 0;
2864         realplayers = 0;
2865
2866         FOR_EACH_REALCLIENT(head)
2867         {
2868                 if(head.classname == "player" || g_lms || g_arena)
2869                         ++activerealplayers;
2870                 ++realplayers;
2871         }
2872
2873         // add/remove bots if needed to make sure there are at least
2874         // minplayers+bot_number, or remove all bots if no one is playing
2875         // But don't remove bots immediately on level change, as the real players
2876         // usually haven't rejoined yet
2877         bots_would_leave = FALSE;
2878         if ((realplayers || cvar("bot_join_empty") || (currentbots > 0 && time < 5)))
2879         {
2880                 float realminplayers, minplayers;
2881                 realminplayers = cvar("minplayers");
2882                 minplayers = max(0, floor(realminplayers));
2883
2884                 float realminbots, minbots;
2885                 if(cvar("bot_vs_human"))
2886                         realminbots = ceil(fabs(cvar("bot_vs_human")) * activerealplayers);
2887                 else
2888                         realminbots = cvar("bot_number");
2889                 minbots = max(0, floor(realminbots));
2890
2891                 bots = min(max(minbots, minplayers - activerealplayers), maxclients - realplayers);
2892                 if(bots > minbots)
2893                         bots_would_leave = TRUE;
2894         }
2895         else
2896         {
2897                 // if there are no players, remove bots
2898                 bots = 0;
2899         }
2900
2901         bot_ignore_bots = cvar("bot_ignore_bots");
2902
2903         // only add one bot per frame to avoid utter chaos
2904         if(time > botframe_nextthink)
2905         {
2906                 //dprint(ftos(bots), " ? ", ftos(currentbots), "\n");
2907                 while (currentbots < bots)
2908                 {
2909                         if (bot_spawn() == world)
2910                         {
2911                                 bprint("Can not add bot, server full.\n");
2912                                 botframe_nextthink = time + 10;
2913                                 break;
2914                         }
2915                 }
2916                 while (currentbots > bots)
2917                         bot_removenewest();
2918         }
2919
2920         if(botframe_spawnedwaypoints)
2921         {
2922                 if(cvar("waypoint_benchmark"))
2923                         localcmd("quit\n");
2924         }
2925
2926         if (currentbots > 0 || cvar("g_waypointeditor"))
2927         if (botframe_spawnedwaypoints)
2928         {
2929                 if(botframe_cachedwaypointlinks)
2930                 {
2931                         if(!botframe_loadedforcedlinks)
2932                                 waypoint_load_links_hardwired();
2933                 }
2934                 else
2935                 {
2936                         // TODO: Make this check cleaner
2937                         local entity wp = findchain(classname, "waypoint");
2938                         if(time - wp.nextthink > 10)
2939                                 waypoint_save_links();
2940                 }
2941         }
2942         else
2943         {
2944                 botframe_spawnedwaypoints = TRUE;
2945                 waypoint_loadall();
2946                 if(!waypoint_load_links())
2947                         waypoint_schedulerelinkall();
2948         }
2949
2950         if (bot_list)
2951         {
2952                 // cycle the goal token from one bot to the next each frame
2953                 // (this prevents them from all doing spawnfunc_waypoint searches on the same
2954                 //  frame, which causes choppy framerates)
2955                 if (bot_strategytoken_taken)
2956                 {
2957                         bot_strategytoken_taken = FALSE;
2958                         if (bot_strategytoken)
2959                                 bot_strategytoken = bot_strategytoken.nextbot;
2960                         if (!bot_strategytoken)
2961                                 bot_strategytoken = bot_list;
2962                 }
2963
2964                 if (botframe_nextdangertime < time)
2965                 {
2966                         local float interval;
2967                         interval = cvar("bot_ai_dangerdetectioninterval");
2968                         if (botframe_nextdangertime < time - interval * 1.5)
2969                                 botframe_nextdangertime = time;
2970                         botframe_nextdangertime = botframe_nextdangertime + interval;
2971                         botframe_updatedangerousobjects(cvar("bot_ai_dangerdetectionupdates"));
2972                 }
2973         }
2974
2975         if (cvar("g_waypointeditor"))
2976                 botframe_showwaypointlinks();
2977
2978         if(time > bot_cvar_nextthink)
2979         {
2980                 if(currentbots>1)
2981                         bot_custom_weapon_priority_setup();
2982                 bot_cvar_nextthink = time + 5;
2983         }
2984 };