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