data/qcsrc/server/gamec/bots.c

   1
   2 float(vector m1, vector m2, vector m3, vector m4) boxesoverlap = {return m2_x >= m3_x && m1_x <= m4_x && m2_y >= m3_y && m1_y <= m4_y && m2_z >= m3_z && m1_z <= m4_z;};
   3 float(vector smins, vector smaxs, vector bmins, vector bmaxs) boxinsidebox = {return smins_x >= bmins_x && smaxs_x <= bmaxs_x && smins_y >= bmins_y && smaxs_y <= bmaxs_y && smins_z >= bmins_z && smaxs_z <= bmaxs_z;};
   4
   5 // rough simulation of walking from one point to another to test if a path
   6 // can be traveled, used by havocbot
   7
   8 float navigation_testtracewalk;
   9 float(entity e, vector start, vector m1, vector m2, vector end) tracewalk =
  10 {
  11         local vector org;
  12         local vector move;
  13         local vector dir;
  14         local float dist;
  15         local float totaldist;
  16         local float stepdist;
  17         local float yaw;
  18         local float ignorehazards;
  19         if (navigation_testtracewalk)
  20         {
  21                 if (navigation_testtracewalk > 1)
  22                         dprint("tracewalk: ");
  23                 //te_wizspike(start);
  24                 //te_knightspike(end);
  25                 //te_lightning2(world, start, end);
  26         }
  27         move = end - start;
  28         move_z = 0;
  29         org = start;
  30         dist = totaldist = vlen(move);
  31         dir = normalize(move);
  32         stepdist = 32;
  33         ignorehazards = FALSE;
  34         //self.angles = vectoangles(dir);
  35         traceline(start, start, FALSE, e);
  36         if (trace_dpstartcontents & (DPCONTENTS_SLIME | DPCONTENTS_LAVA))
  37                 ignorehazards = TRUE;
  38         tracebox(start, m1, m2, start, TRUE, e);
  39         if (trace_startsolid)
  40         {
  41                 // failed - bad start
  42                 if (navigation_testtracewalk)
  43                 {
  44                         if (navigation_testtracewalk > 1)
  45                                 dprint("bad-start\n");
  46                         te_knightspike(start);
  47                 }
  48                 return 0;
  49         }
  50         yaw = vectoyaw(move);
  51         move = end - org;
  52         while (1)
  53         {
  54                 if (boxesoverlap(end, end, org + m1 + '-1 -1 -1', org + m2 + '1 1 1'))
  55                 {
  56                         if (navigation_testtracewalk)
  57                         {
  58                                 if (navigation_testtracewalk > 1)
  59                                         dprint("success\n");
  60                                 te_wizspike(org);
  61                         }
  62                         // succeeded
  63                         return 1;
  64                 }
  65                 if (dist <= 0)
  66                         break;
  67                 if (navigation_testtracewalk)
  68                 {
  69                         //dprint("trying ");
  70                         //te_gunshot(org);
  71                         particle(org, '0 0 0', 104, 8);
  72                 }
  73                 if (stepdist > dist)
  74                         stepdist = dist;
  75                 dist = dist - stepdist;
  76                 traceline(org, org, FALSE, e);
  77                 if (!ignorehazards)
  78                 {
  79                         if (trace_dpstartcontents & (DPCONTENTS_SLIME | DPCONTENTS_LAVA))
  80                         {
  81                                 if (navigation_testtracewalk)
  82                                 {
  83                                         if (navigation_testtracewalk > 1)
  84                                                 dprint("hazard\n");
  85                                         te_gunshot(org);
  86                                 }
  87                                 // hazards blocking path
  88                                 return 0;
  89                         }
  90                 }
  91                 if (trace_dpstartcontents & DPCONTENTS_LIQUIDSMASK)
  92                 {
  93                         move = normalize(end - org);
  94                         tracebox(org, m1, m2, org + move * stepdist, FALSE, e);
  95                         if (trace_fraction < 1)
  96                         {
  97                                 if (navigation_testtracewalk)
  98                                 {
  99                                         if (navigation_testtracewalk > 1)
 100                                                 dprint("swimming-hit-something\n");
 101                                         //particle(org, move * 64, 104, 4);
 102                                         te_gunshot(org);
 103                                 }
 104                                 // failed
 105                                 return 0;
 106                         }
 107                         org = trace_endpos;
 108                 }
 109                 else
 110                 {
 111                         move = dir * stepdist + org;
 112                         tracebox(org, m1, m2, move, FALSE, e);
 113                         if (trace_fraction < 1)
 114                         {
 115                                 tracebox(org + '0 0 18', m1, m2, move + '0 0 18', FALSE, e);
 116                                 if (trace_fraction < 1 || trace_startsolid)
 117                                 {
 118                                         if (navigation_testtracewalk)
 119                                         {
 120                                                 if (navigation_testtracewalk > 1)
 121                                                         dprint("hit-something\n");
 122                                                 //move = normalize(end - org);
 123                                                 //particle(org, move * 64, 104, 4);
 124                                                 te_gunshot(org);
 125                                         }
 126                                         // failed
 127                                         return 0;
 128                                 }
 129                         }
 130                         move = trace_endpos;
 131                         tracebox(move, m1, m2, move + '0 0 -65536', FALSE, e);
 132                         /*
 133                         // trace down from stepheight as far as possible and move there,
 134                         // if this starts in solid we try again without the stepup, and
 135                         // if that also fails we assume it is a wall
 136                         // (this is the same logic as the Quake walkmove function used)
 137                         tracebox(move + '0 0 18', m1, m2, move + '0 0 -65536', FALSE, e);
 138                         if (trace_startsolid)
 139                         {
 140                                 tracebox(move, m1, m2, move + '0 0 -65536', FALSE, e);
 141                                 if (trace_startsolid)
 142                                 {
 143                                         if (navigation_testtracewalk)
 144                                         {
 145                                                 if (navigation_testtracewalk > 1)
 146                                                         dprint("hit-something\n");
 147                                                 //move = normalize(end - org);
 148                                                 //particle(org, move * 64, 104, 4);
 149                                                 te_knightspike(org);
 150                                         }
 151                                         // failed
 152                                         return 0;
 153                                 }
 154                         }
 155                         */
 156                         // moved successfully
 157                         if (navigation_testtracewalk > 1)
 158                                 dprint("moved ");
 159                         org = trace_endpos;
 160                 }
 161         }
 162         if (navigation_testtracewalk)
 163         {
 164                 if (navigation_testtracewalk > 1)
 165                         dprint("wrong-place\n");
 166                 te_knightspike(org);
 167                 //te_gunshot(end);
 168         }
 169         // moved but didn't arrive at the intended destination
 170         return 0;
 171 };
 172
 173
 174 // grenade tracing to decide the best pitch to fire at
 175
 176 entity tracetossent;
 177 entity tracetossfaketarget;
 178
 179 // traces multiple trajectories to find one that will impact the target
 180 // 'end' vector is the place it aims for,
 181 // returns TRUE only if it hit targ (don't target non-solid entities)
 182 vector findtrajectory_velocity;
 183 float(vector org, vector m1, vector m2, entity targ, float shotspeed, float shotspeedupward, float maxtime, float shotdelay, entity ignore) findtrajectorywithleading =
 184 {
 185         local float c, savesolid, shottime;
 186         local vector dir, end, v;
 187         if (shotspeed < 1)
 188                 return FALSE; // could cause division by zero if calculated
 189         if (targ.solid < SOLID_BBOX) // SOLID_NOT and SOLID_TRIGGER
 190                 return FALSE; // could never hit it
 191         if (!tracetossent)
 192                 tracetossent = spawn();
 193         tracetossent.owner = ignore;
 194         setsize(tracetossent, m1, m2);
 195         savesolid = targ.solid;
 196         targ.solid = SOLID_NOT;
 197         shottime = ((vlen(targ.origin - org) / shotspeed) + shotdelay);
 198         v = targ.velocity * shottime + targ.origin;
 199         tracebox(targ.origin, targ.mins, targ.maxs, v, FALSE, targ);
 200         v = trace_endpos;
 201         end = v + (targ.mins + targ.maxs) * 0.5;
 202         if ((vlen(end - org) / shotspeed + 0.2) > maxtime)
 203         {
 204                 // out of range
 205                 targ.solid = savesolid;
 206                 return FALSE;
 207         }
 208
 209         if (!tracetossfaketarget)
 210                 tracetossfaketarget = spawn();
 211         tracetossfaketarget.solid = savesolid;
 212         tracetossfaketarget.movetype = targ.movetype;
 213         setmodel(tracetossfaketarget, targ.model);
 214         tracetossfaketarget.model = targ.model;
 215         tracetossfaketarget.modelindex = targ.modelindex;
 216         setsize(tracetossfaketarget, targ.mins, targ.maxs);
 217         setorigin(tracetossfaketarget, v);
 218
 219         c = 0;
 220         dir = normalize(end - org);
 221         while (c < 10) // 10 traces
 222         {
 223                 setorigin(tracetossent, org); // reset
 224                 tracetossent.velocity = findtrajectory_velocity = normalize(dir) * shotspeed + shotspeedupward * '0 0 1';
 225                 tracetoss(tracetossent, ignore); // love builtin functions...
 226                 if (trace_ent == tracetossfaketarget) // done
 227                 {
 228                         targ.solid = savesolid;
 229
 230                         // make it disappear
 231                         tracetossfaketarget.solid = SOLID_NOT;
 232                         tracetossfaketarget.movetype = MOVETYPE_NONE;
 233                         tracetossfaketarget.model = "";
 234                         tracetossfaketarget.modelindex = 0;
 235                         // relink to remove it from physics considerations
 236                         setorigin(tracetossfaketarget, v);
 237
 238                         return TRUE;
 239                 }
 240                 dir_z = dir_z + 0.1; // aim up a little more
 241                 c = c + 1;
 242         }
 243         targ.solid = savesolid;
 244
 245         // make it disappear
 246         tracetossfaketarget.solid = SOLID_NOT;
 247         tracetossfaketarget.movetype = MOVETYPE_NONE;
 248         tracetossfaketarget.model = "";
 249         tracetossfaketarget.modelindex = 0;
 250         // relink to remove it from physics considerations
 251         setorigin(tracetossfaketarget, v);
 252
 253         // leave a valid one even if it won't reach
 254         findtrajectory_velocity = normalize(end - org) * shotspeed + shotspeedupward * '0 0 1';
 255         return FALSE;
 256 };
 257
 258
 259
 260 // lag simulation
 261
 262 .void(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4) lag_func;
 263
 264 // upto 5 queued messages
 265 .float lag1_time;
 266 .float lag1_float1;
 267 .float lag1_float2;
 268 .entity lag1_entity1;
 269 .vector lag1_vec1;
 270 .vector lag1_vec2;
 271 .vector lag1_vec3;
 272 .vector lag1_vec4;
 273
 274 .float lag2_time;
 275 .float lag2_float1;
 276 .float lag2_float2;
 277 .entity lag2_entity1;
 278 .vector lag2_vec1;
 279 .vector lag2_vec2;
 280 .vector lag2_vec3;
 281 .vector lag2_vec4;
 282
 283 .float lag3_time;
 284 .float lag3_float1;
 285 .float lag3_float2;
 286 .entity lag3_entity1;
 287 .vector lag3_vec1;
 288 .vector lag3_vec2;
 289 .vector lag3_vec3;
 290 .vector lag3_vec4;
 291
 292 .float lag4_time;
 293 .float lag4_float1;
 294 .float lag4_float2;
 295 .entity lag4_entity1;
 296 .vector lag4_vec1;
 297 .vector lag4_vec2;
 298 .vector lag4_vec3;
 299 .vector lag4_vec4;
 300
 301 .float lag5_time;
 302 .float lag5_float1;
 303 .float lag5_float2;
 304 .entity lag5_entity1;
 305 .vector lag5_vec1;
 306 .vector lag5_vec2;
 307 .vector lag5_vec3;
 308 .vector lag5_vec4;
 309
 310 void() lag_update =
 311 {
 312         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;}
 313         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;}
 314         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;}
 315         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;}
 316         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;}
 317 };
 318
 319 float(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4) lag_additem =
 320 {
 321         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;}
 322         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;}
 323         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;}
 324         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;}
 325         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;}
 326         // no room for it (what is the best thing to do here??)
 327         return FALSE;
 328 };
 329
 330
 331
 332 // waypoint navigation system
 333
 334 // itemscore = (howmuchmoreIwant / howmuchIcanwant) / itemdistance
 335 // waypointscore = 0.7 / waypointdistance
 336
 337 .entity wp00, wp01, wp02, wp03, wp04, wp05, wp06, wp07;
 338 .entity wp08, wp09, wp10, wp11, wp12, wp13, wp14, wp15;
 339 .entity wp16, wp17, wp18, wp19, wp20, wp21, wp22, wp23, wp24, wp25, wp26, wp27, wp28, wp29, wp30, wp31;
 340 .float wp00mincost, wp01mincost, wp02mincost, wp03mincost, wp04mincost, wp05mincost, wp06mincost, wp07mincost;
 341 .float wp08mincost, wp09mincost, wp10mincost, wp11mincost, wp12mincost, wp13mincost, wp14mincost, wp15mincost;
 342 .float wp16mincost, wp17mincost, wp18mincost, wp19mincost, wp20mincost, wp21mincost, wp22mincost, wp23mincost, wp24mincost, wp25mincost, wp26mincost, wp27mincost, wp28mincost, wp29mincost, wp30mincost, wp31mincost;
 343 .float wpfire, wpcost;
 344 .float wpisbox;
 345 .float wpflags;
 346 .vector wpnearestpoint;
 347
 348 // stack of current goals (the last one of which may be an item or other
 349 // desirable object, the rest are typically waypoints to reach it)
 350 .entity goalcurrent, goalstack01, goalstack02, goalstack03;
 351 .entity goalstack04, goalstack05, goalstack06, goalstack07;
 352 .entity goalstack08, goalstack09, goalstack10, goalstack11;
 353 .entity goalstack12, goalstack13, goalstack14, goalstack15;
 354 .entity goalstack16, goalstack17, goalstack18, goalstack19;
 355 .entity goalstack20, goalstack21, goalstack22, goalstack23;
 356 .entity goalstack24, goalstack25, goalstack26, goalstack27;
 357 .entity goalstack28, goalstack29, goalstack30, goalstack31;
 358
 359 .entity nearestwaypoint;
 360 .float nearestwaypointtimeout;
 361
 362 // used during navigation_goalrating_begin/end sessions
 363 float navigation_bestrating;
 364 entity navigation_bestgoal;
 365
 366
 367
 368
 369
 370 /////////////////////////////////////////////////////////////////////////////
 371 // waypoint management
 372 /////////////////////////////////////////////////////////////////////////////
 373
 374 // waypoints with this flag are not saved, they are automatically generated
 375 // waypoints like jump pads, teleporters, and items
 376 float WAYPOINTFLAG_GENERATED = 8388608;
 377 float WAYPOINTFLAG_ITEM = 4194304;
 378 float WAYPOINTFLAG_TELEPORT = 2097152;
 379 float WAYPOINTFLAG_NORELINK = 1048576;
 380
 381 // add a new link to the waypoint, replacing the furthest link it already has
 382 void(entity from, entity to) waypoint_addlink =
 383 {
 384         local float c;
 385
 386         if (from == to)
 387                 return;
 388         if (from.wpflags & WAYPOINTFLAG_NORELINK)
 389                 return;
 390
 391         if (from.wp00 == to) return;if (from.wp01 == to) return;if (from.wp02 == to) return;if (from.wp03 == to) return;
 392         if (from.wp04 == to) return;if (from.wp05 == to) return;if (from.wp06 == to) return;if (from.wp07 == to) return;
 393         if (from.wp08 == to) return;if (from.wp09 == to) return;if (from.wp10 == to) return;if (from.wp11 == to) return;
 394         if (from.wp12 == to) return;if (from.wp13 == to) return;if (from.wp14 == to) return;if (from.wp15 == to) return;
 395         if (from.wp16 == to) return;if (from.wp17 == to) return;if (from.wp18 == to) return;if (from.wp19 == to) return;
 396         if (from.wp20 == to) return;if (from.wp21 == to) return;if (from.wp22 == to) return;if (from.wp23 == to) return;
 397         if (from.wp24 == to) return;if (from.wp25 == to) return;if (from.wp26 == to) return;if (from.wp27 == to) return;
 398         if (from.wp28 == to) return;if (from.wp29 == to) return;if (from.wp30 == to) return;if (from.wp31 == to) return;
 399
 400         if (to.wpisbox || from.wpisbox)
 401         {
 402                 // if either is a box we have to find the nearest points on them to
 403                 // calculate the distance properly
 404                 local vector v1, v2, m1, m2;
 405                 v1 = from.origin;
 406                 m1 = to.absmin;
 407                 m2 = to.absmax;
 408                 v1_x = bound(m1_x, v1_x, m2_x);
 409                 v1_y = bound(m1_y, v1_y, m2_y);
 410                 v1_z = bound(m1_z, v1_z, m2_z);
 411                 v2 = to.origin;
 412                 m1 = from.absmin;
 413                 m2 = from.absmax;
 414                 v2_x = bound(m1_x, v2_x, m2_x);
 415                 v2_y = bound(m1_y, v2_y, m2_y);
 416                 v2_z = bound(m1_z, v2_z, m2_z);
 417                 v2 = to.origin;
 418                 c = vlen(v2 - v1);
 419         }
 420         else
 421                 c = vlen(to.origin - from.origin);
 422
 423         if (from.wp31mincost < c) return;
 424         if (from.wp30mincost < c) {from.wp31 = to;from.wp31mincost = c;return;} from.wp31 = from.wp30;from.wp31mincost = from.wp30mincost;
 425         if (from.wp29mincost < c) {from.wp30 = to;from.wp30mincost = c;return;} from.wp30 = from.wp29;from.wp30mincost = from.wp29mincost;
 426         if (from.wp28mincost < c) {from.wp29 = to;from.wp29mincost = c;return;} from.wp29 = from.wp28;from.wp29mincost = from.wp28mincost;
 427         if (from.wp27mincost < c) {from.wp28 = to;from.wp28mincost = c;return;} from.wp28 = from.wp27;from.wp28mincost = from.wp27mincost;
 428         if (from.wp26mincost < c) {from.wp27 = to;from.wp27mincost = c;return;} from.wp27 = from.wp26;from.wp27mincost = from.wp26mincost;
 429         if (from.wp25mincost < c) {from.wp26 = to;from.wp26mincost = c;return;} from.wp26 = from.wp25;from.wp26mincost = from.wp25mincost;
 430         if (from.wp24mincost < c) {from.wp25 = to;from.wp25mincost = c;return;} from.wp25 = from.wp24;from.wp25mincost = from.wp24mincost;
 431         if (from.wp23mincost < c) {from.wp24 = to;from.wp24mincost = c;return;} from.wp24 = from.wp23;from.wp24mincost = from.wp23mincost;
 432         if (from.wp22mincost < c) {from.wp23 = to;from.wp23mincost = c;return;} from.wp23 = from.wp22;from.wp23mincost = from.wp22mincost;
 433         if (from.wp21mincost < c) {from.wp22 = to;from.wp22mincost = c;return;} from.wp22 = from.wp21;from.wp22mincost = from.wp21mincost;
 434         if (from.wp20mincost < c) {from.wp21 = to;from.wp21mincost = c;return;} from.wp21 = from.wp20;from.wp21mincost = from.wp20mincost;
 435         if (from.wp19mincost < c) {from.wp20 = to;from.wp20mincost = c;return;} from.wp20 = from.wp19;from.wp20mincost = from.wp19mincost;
 436         if (from.wp18mincost < c) {from.wp19 = to;from.wp19mincost = c;return;} from.wp19 = from.wp18;from.wp19mincost = from.wp18mincost;
 437         if (from.wp17mincost < c) {from.wp18 = to;from.wp18mincost = c;return;} from.wp18 = from.wp17;from.wp18mincost = from.wp17mincost;
 438         if (from.wp16mincost < c) {from.wp17 = to;from.wp17mincost = c;return;} from.wp17 = from.wp16;from.wp17mincost = from.wp16mincost;
 439         if (from.wp15mincost < c) {from.wp16 = to;from.wp16mincost = c;return;} from.wp16 = from.wp15;from.wp16mincost = from.wp15mincost;
 440         if (from.wp14mincost < c) {from.wp15 = to;from.wp15mincost = c;return;} from.wp15 = from.wp14;from.wp15mincost = from.wp14mincost;
 441         if (from.wp13mincost < c) {from.wp14 = to;from.wp14mincost = c;return;} from.wp14 = from.wp13;from.wp14mincost = from.wp13mincost;
 442         if (from.wp12mincost < c) {from.wp13 = to;from.wp13mincost = c;return;} from.wp13 = from.wp12;from.wp13mincost = from.wp12mincost;
 443         if (from.wp11mincost < c) {from.wp12 = to;from.wp12mincost = c;return;} from.wp12 = from.wp11;from.wp12mincost = from.wp11mincost;
 444         if (from.wp10mincost < c) {from.wp11 = to;from.wp11mincost = c;return;} from.wp11 = from.wp10;from.wp11mincost = from.wp10mincost;
 445         if (from.wp09mincost < c) {from.wp10 = to;from.wp10mincost = c;return;} from.wp10 = from.wp09;from.wp10mincost = from.wp09mincost;
 446         if (from.wp08mincost < c) {from.wp09 = to;from.wp09mincost = c;return;} from.wp09 = from.wp08;from.wp09mincost = from.wp08mincost;
 447         if (from.wp07mincost < c) {from.wp08 = to;from.wp08mincost = c;return;} from.wp08 = from.wp07;from.wp08mincost = from.wp07mincost;
 448         if (from.wp06mincost < c) {from.wp07 = to;from.wp07mincost = c;return;} from.wp07 = from.wp06;from.wp07mincost = from.wp06mincost;
 449         if (from.wp05mincost < c) {from.wp06 = to;from.wp06mincost = c;return;} from.wp06 = from.wp05;from.wp06mincost = from.wp05mincost;
 450         if (from.wp04mincost < c) {from.wp05 = to;from.wp05mincost = c;return;} from.wp05 = from.wp04;from.wp05mincost = from.wp04mincost;
 451         if (from.wp03mincost < c) {from.wp04 = to;from.wp04mincost = c;return;} from.wp04 = from.wp03;from.wp04mincost = from.wp03mincost;
 452         if (from.wp02mincost < c) {from.wp03 = to;from.wp03mincost = c;return;} from.wp03 = from.wp02;from.wp03mincost = from.wp02mincost;
 453         if (from.wp01mincost < c) {from.wp02 = to;from.wp02mincost = c;return;} from.wp02 = from.wp01;from.wp02mincost = from.wp01mincost;
 454         if (from.wp00mincost < c) {from.wp01 = to;from.wp01mincost = c;return;} from.wp01 = from.wp00;from.wp01mincost = from.wp00mincost;
 455         from.wp00 = to;from.wp00mincost = c;return;
 456 };
 457
 458 // relink this waypoint
 459 // (precompile a list of all reachable waypoints from this waypoint)
 460 // (SLOW!)
 461 void() waypoint_think =
 462 {
 463         local entity e;
 464         local vector sv, sm1, sm2, ev, em1, em2;
 465         //dprint("waypoint_think wpisbox = ", ftos(self.wpisbox), "\n");
 466         sm1 = self.origin + self.mins;
 467         sm2 = self.origin + self.maxs;
 468         e = find(world, classname, "waypoint");
 469         while (e)
 470         {
 471                 if (boxesoverlap(self.absmin, self.absmax, e.absmin, e.absmax))
 472                 {
 473                         waypoint_addlink(self, e);
 474                         waypoint_addlink(e, self);
 475                 }
 476                 else
 477                 {
 478                         sv = e.origin;
 479                         sv_x = bound(sm1_x, sv_x, sm2_x);
 480                         sv_y = bound(sm1_y, sv_y, sm2_y);
 481                         sv_z = bound(sm1_z, sv_z, sm2_z);
 482                         ev = self.origin;
 483                         em1 = e.origin + e.mins;
 484                         em2 = e.origin + e.maxs;
 485                         ev_x = bound(em1_x, ev_x, em2_x);
 486                         ev_y = bound(em1_y, ev_y, em2_y);
 487                         ev_z = bound(em1_z, ev_z, em2_z);
 488                         if (vlen(ev - sv) < self.wp31mincost)
 489                         {
 490                                 navigation_testtracewalk = 0;
 491                                 if (!self.wpisbox)
 492                                 {
 493                                         tracebox(sv - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, sv, FALSE, self);
 494                                         if (!trace_startsolid)
 495                                         {
 496                                                 //dprint("sv deviation", vtos(trace_endpos - sv), "\n");
 497                                                 sv = trace_endpos + '0 0 1';
 498                                         }
 499                                 }
 500                                 if (!e.wpisbox)
 501                                 {
 502                                         tracebox(ev - PL_MIN_z * '0 0 1', PL_MIN, PL_MAX, ev, FALSE, e);
 503                                         if (!trace_startsolid)
 504                                         {
 505                                                 //dprint("ev deviation", vtos(trace_endpos - ev), "\n");
 506                                                 ev = trace_endpos + '0 0 1';
 507                                         }
 508                                 }
 509                                 //traceline(self.origin, e.origin, FALSE, world);
 510                                 //if (trace_fraction == 1)
 511                                 if (!self.wpisbox)
 512                                 if (tracewalk(self, sv, PL_MIN, PL_MAX, ev))
 513                                         waypoint_addlink(self, e);
 514                                 if (!e.wpisbox)
 515                                 if (tracewalk(e, ev, PL_MIN, PL_MAX, sv))
 516                                         waypoint_addlink(e, self);
 517                         }
 518                 }
 519                 e = find(e, classname, "waypoint");
 520         }
 521         navigation_testtracewalk = 0;
 522 };
 523
 524 void(entity wp) waypoint_clearlinks =
 525 {
 526         // clear links to other waypoints
 527         local float f;
 528         f = 1050; // maximum search range for other waypoints
 529         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;
 530         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;
 531         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;
 532         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;
 533 };
 534
 535 // tell a waypoint to relink
 536 void(entity wp) waypoint_schedulerelink =
 537 {
 538         if (wp == world)
 539                 return;
 540         // TODO: add some sort of visible box in edit mode for box waypoints
 541         if (cvar("g_waypointeditor"))
 542         {
 543                 local vector m1, m2;
 544                 m1 = wp.mins;
 545                 m2 = wp.maxs;
 546                 setmodel(wp, "models/runematch/rune.mdl");
 547                 setsize(wp, m1, m2);
 548         }
 549         else
 550                 wp.model = "";
 551         wp.wpisbox = vlen(wp.size) > 0;
 552         wp.enemy = world;
 553         wp.owner = world;
 554         if (!(wp.wpflags & WAYPOINTFLAG_NORELINK))
 555                 waypoint_clearlinks(wp);
 556         // schedule an actual relink on next frame
 557         wp.think = waypoint_think;
 558         wp.nextthink = time;
 559 }
 560
 561 // create a new waypoint and automatically link it to other waypoints, and link
 562 // them back to it as well
 563 // (suitable for waypoint editor)
 564 entity(vector m1, vector m2, float f) waypoint_spawn =
 565 {
 566         local entity w;
 567         local vector org;
 568         org = (m1 + m2) * 0.5;
 569         m1 = m1 - org;
 570         m2 = m2 - org;
 571         w = find(world, classname, "waypoint");
 572         while (w)
 573         {
 574                 // if a matching waypoint already exists, don't add a duplicate
 575                 if (w.origin == org && w.mins == m1 && w.maxs == m2)
 576                         return w;
 577                 w = find(w, classname, "waypoint");
 578         }
 579         w = spawn();
 580         w.classname = "waypoint";
 581         w.wpflags = f;
 582         setorigin(w, org);
 583         setsize(w, m1, m2);
 584         waypoint_clearlinks(w);
 585         waypoint_schedulerelink(w);
 586         return w;
 587 };
 588
 589 // waypoint map entity
 590 void() waypoint =
 591 {
 592         setorigin(self, self.origin);
 593         // schedule a relink after other waypoints have had a chance to spawn
 594         waypoint_clearlinks(self);
 595         waypoint_schedulerelink(self);
 596 };
 597
 598 // remove a waypoint, and schedule all neighbors to relink
 599 void(entity e) waypoint_remove =
 600 {
 601         // tell all linked waypoints that they need to relink
 602         waypoint_schedulerelink(e.wp00);
 603         waypoint_schedulerelink(e.wp01);
 604         waypoint_schedulerelink(e.wp02);
 605         waypoint_schedulerelink(e.wp03);
 606         waypoint_schedulerelink(e.wp04);
 607         waypoint_schedulerelink(e.wp05);
 608         waypoint_schedulerelink(e.wp06);
 609         waypoint_schedulerelink(e.wp07);
 610         waypoint_schedulerelink(e.wp08);
 611         waypoint_schedulerelink(e.wp09);
 612         waypoint_schedulerelink(e.wp10);
 613         waypoint_schedulerelink(e.wp11);
 614         waypoint_schedulerelink(e.wp12);
 615         waypoint_schedulerelink(e.wp13);
 616         waypoint_schedulerelink(e.wp14);
 617         waypoint_schedulerelink(e.wp15);
 618         waypoint_schedulerelink(e.wp16);
 619         waypoint_schedulerelink(e.wp17);
 620         waypoint_schedulerelink(e.wp18);
 621         waypoint_schedulerelink(e.wp19);
 622         waypoint_schedulerelink(e.wp20);
 623         waypoint_schedulerelink(e.wp21);
 624         waypoint_schedulerelink(e.wp22);
 625         waypoint_schedulerelink(e.wp23);
 626         waypoint_schedulerelink(e.wp24);
 627         waypoint_schedulerelink(e.wp25);
 628         waypoint_schedulerelink(e.wp26);
 629         waypoint_schedulerelink(e.wp27);
 630         waypoint_schedulerelink(e.wp28);
 631         waypoint_schedulerelink(e.wp29);
 632         waypoint_schedulerelink(e.wp30);
 633         waypoint_schedulerelink(e.wp31);
 634         // and now remove the waypoint
 635         remove(e);
 636 };
 637
 638 // empties the map of waypoints
 639 void() waypoint_removeall =
 640 {
 641         local entity head, next;
 642         head = findchain(classname, "waypoint");
 643         while (head)
 644         {
 645                 next = head.chain;
 646                 remove(head);
 647                 head = next;
 648         }
 649 };
 650
 651 // tell all waypoints to relink
 652 // (is this useful at all?)
 653 void() waypoint_schedulerelinkall =
 654 {
 655         local entity head;
 656         head = findchain(classname, "waypoint");
 657         while (head)
 658         {
 659                 waypoint_schedulerelink(head);
 660                 head = head.chain;
 661         }
 662 };
 663
 664 // save waypoints to gamedir/data/maps/mapname.waypoints
 665 // TODO: support saving wayboxes
 666 void() waypoint_saveall =
 667 {
 668         local string filename, s;
 669         local float file, c;
 670         local entity w;
 671         filename = strcat("maps/", mapname);
 672         filename = strcat(filename, ".waypoints");
 673         file = fopen(filename, FILE_WRITE);
 674         if (file >= 0)
 675         {
 676                 c = 0;
 677                 w = findchain(classname, "waypoint");
 678                 while (w)
 679                 {
 680                         if (!(w.wpflags & WAYPOINTFLAG_GENERATED))
 681                         {
 682                                 s = strcat(vtos(w.origin + w.mins), "\n");
 683                                 s = strcat(s, vtos(w.origin + w.maxs));
 684                                 s = strcat(s, "\n");
 685                                 s = strcat(s, ftos(w.wpflags));
 686                                 s = strcat(s, "\n");
 687                                 fputs(file, s);
 688                                 c = c + 1;
 689                         }
 690                         w = w.chain;
 691                 }
 692                 fclose(file);
 693                 bprint("saved ");
 694                 bprint(ftos(c));
 695                 bprint(" waypoints to maps/");
 696                 bprint(mapname);
 697                 bprint(".waypoints\n");
 698         }
 699         else
 700         {
 701                 bprint("waypoint save to ");
 702                 bprint(filename);
 703                 bprint(" failed\n");
 704         }
 705 };
 706
 707 // load waypoints from file
 708 float() waypoint_loadall =
 709 {
 710         local string filename, s;
 711         local float file, cwp, cwb, fl;
 712         local vector m1, m2;
 713         cwp = 0;
 714         cwb = 0;
 715         filename = strcat("maps/", mapname);
 716         filename = strcat(filename, ".waypoints");
 717         file = fopen(filename, FILE_READ);
 718         if (file >= 0)
 719         {
 720                 while (1)
 721                 {
 722                         s = fgets(file);
 723                         if (!s)
 724                                 break;
 725                         m1 = stov(s);
 726                         s = fgets(file);
 727                         if (!s)
 728                                 break;
 729                         m2 = stov(s);
 730                         s = fgets(file);
 731                         if (!s)
 732                                 break;
 733                         fl = stof(s);
 734                         waypoint_spawn(m1, m2, fl);
 735                         if (m1 == m2)
 736                                 cwp = cwp + 1;
 737                         else
 738                                 cwb = cwb + 1;
 739                 }
 740                 fclose(file);
 741                 dprint("loaded ");
 742                 dprint(ftos(cwp));
 743                 dprint(" waypoints and ");
 744                 dprint(ftos(cwb));
 745                 dprint(" wayboxes from maps/");
 746                 dprint(mapname);
 747                 dprint(".waypoints\n");
 748         }
 749         else
 750         {
 751                 dprint("waypoint load from ");
 752                 dprint(filename);
 753                 dprint(" failed\n");
 754         }
 755         return cwp + cwb;
 756 };
 757
 758 void(entity e) waypoint_spawnforitem =
 759 {
 760         local entity w;
 761         local vector org;
 762         org = e.origin + (e.mins + e.maxs) * 0.5;
 763         org_z = e.origin_z + e.mins_z - PL_MIN_z + 1;
 764         e.nearestwaypointtimeout = time + 1000000000;
 765         // don't spawn an item waypoint if it already exists
 766         w = findchain(classname, "waypoint");
 767         while (w)
 768         {
 769                 if (vlen(w.size) > 1)
 770                 {
 771                         if (boxesoverlap(org, org, w.absmin, w.absmax))
 772                         {
 773                                 e.nearestwaypoint = w;
 774                                 return;
 775                         }
 776                 }
 777                 else
 778                 {
 779                         if (vlen(w.origin - org) < 16)
 780                         {
 781                                 e.nearestwaypoint = w;
 782                                 return;
 783                         }
 784                 }
 785                 w = w.chain;
 786         }
 787         e.nearestwaypoint = waypoint_spawn(org, org, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_ITEM);
 788 };
 789
 790 void(entity e, vector destination, float timetaken) waypoint_spawnforteleporter =
 791 {
 792         local entity w;
 793         local entity dw;
 794         w = waypoint_spawn(e.absmin, e.absmax, WAYPOINTFLAG_GENERATED | WAYPOINTFLAG_TELEPORT | WAYPOINTFLAG_NORELINK);
 795         dw = waypoint_spawn(destination, destination, WAYPOINTFLAG_GENERATED);
 796         // one way link to the destination
 797         w.wp00 = dw;
 798         w.wp00mincost = timetaken; // this is just for jump pads
 799         // the teleporter's nearest waypoint is this one
 800         // (teleporters are not goals, so this is probably useless)
 801         e.nearestwaypoint = w;
 802         e.nearestwaypointtimeout = time + 1000000000;
 803 };
 804
 805
 806
 807
 808
 809 /////////////////////////////////////////////////////////////////////////////
 810 // goal stack
 811 /////////////////////////////////////////////////////////////////////////////
 812
 813 // completely empty the goal stack, used when deciding where to go
 814 void() navigation_clearroute =
 815 {
 816         self.goalcurrent = world;
 817         self.goalstack01 = world;
 818         self.goalstack02 = world;
 819         self.goalstack03 = world;
 820         self.goalstack04 = world;
 821         self.goalstack05 = world;
 822         self.goalstack06 = world;
 823         self.goalstack07 = world;
 824         self.goalstack08 = world;
 825         self.goalstack09 = world;
 826         self.goalstack10 = world;
 827         self.goalstack11 = world;
 828         self.goalstack12 = world;
 829         self.goalstack13 = world;
 830         self.goalstack14 = world;
 831         self.goalstack15 = world;
 832         self.goalstack16 = world;
 833         self.goalstack17 = world;
 834         self.goalstack18 = world;
 835         self.goalstack19 = world;
 836         self.goalstack20 = world;
 837         self.goalstack21 = world;
 838         self.goalstack22 = world;
 839         self.goalstack23 = world;
 840         self.goalstack24 = world;
 841         self.goalstack25 = world;
 842         self.goalstack26 = world;
 843         self.goalstack27 = world;
 844         self.goalstack28 = world;
 845         self.goalstack29 = world;
 846         self.goalstack30 = world;
 847         self.goalstack31 = world;
 848 };
 849
 850 // add a new goal at the beginning of the stack
 851 // (in other words: add a new prerequisite before going to the later goals)
 852 void(entity e) navigation_pushroute =
 853 {
 854         self.goalstack31 = self.goalstack30;
 855         self.goalstack30 = self.goalstack29;
 856         self.goalstack29 = self.goalstack28;
 857         self.goalstack28 = self.goalstack27;
 858         self.goalstack27 = self.goalstack26;
 859         self.goalstack26 = self.goalstack25;
 860         self.goalstack25 = self.goalstack24;
 861         self.goalstack24 = self.goalstack23;
 862         self.goalstack23 = self.goalstack22;
 863         self.goalstack22 = self.goalstack21;
 864         self.goalstack21 = self.goalstack20;
 865         self.goalstack20 = self.goalstack19;
 866         self.goalstack19 = self.goalstack18;
 867         self.goalstack18 = self.goalstack17;
 868         self.goalstack17 = self.goalstack16;
 869         self.goalstack16 = self.goalstack15;
 870         self.goalstack15 = self.goalstack14;
 871         self.goalstack14 = self.goalstack13;
 872         self.goalstack13 = self.goalstack12;
 873         self.goalstack12 = self.goalstack11;
 874         self.goalstack11 = self.goalstack10;
 875         self.goalstack10 = self.goalstack09;
 876         self.goalstack09 = self.goalstack08;
 877         self.goalstack08 = self.goalstack07;
 878         self.goalstack07 = self.goalstack06;
 879         self.goalstack06 = self.goalstack05;
 880         self.goalstack05 = self.goalstack04;
 881         self.goalstack04 = self.goalstack03;
 882         self.goalstack03 = self.goalstack02;
 883         self.goalstack02 = self.goalstack01;
 884         self.goalstack01 = self.goalcurrent;
 885         self.goalcurrent = e;
 886 };
 887
 888 // remove first goal from stack
 889 // (in other words: remove a prerequisite for reaching the later goals)
 890 // (used when a waypoint is reached)
 891 void() navigation_poproute =
 892 {
 893         self.goalcurrent = self.goalstack01;
 894         self.goalstack01 = self.goalstack02;
 895         self.goalstack02 = self.goalstack03;
 896         self.goalstack03 = self.goalstack04;
 897         self.goalstack04 = self.goalstack05;
 898         self.goalstack05 = self.goalstack06;
 899         self.goalstack06 = self.goalstack07;
 900         self.goalstack07 = self.goalstack08;
 901         self.goalstack08 = self.goalstack09;
 902         self.goalstack09 = self.goalstack10;
 903         self.goalstack10 = self.goalstack11;
 904         self.goalstack11 = self.goalstack12;
 905         self.goalstack12 = self.goalstack13;
 906         self.goalstack13 = self.goalstack14;
 907         self.goalstack14 = self.goalstack15;
 908         self.goalstack15 = self.goalstack16;
 909         self.goalstack16 = self.goalstack17;
 910         self.goalstack17 = self.goalstack18;
 911         self.goalstack18 = self.goalstack19;
 912         self.goalstack19 = self.goalstack20;
 913         self.goalstack20 = self.goalstack21;
 914         self.goalstack21 = self.goalstack22;
 915         self.goalstack22 = self.goalstack23;
 916         self.goalstack23 = self.goalstack24;
 917         self.goalstack24 = self.goalstack25;
 918         self.goalstack25 = self.goalstack26;
 919         self.goalstack26 = self.goalstack27;
 920         self.goalstack27 = self.goalstack28;
 921         self.goalstack28 = self.goalstack29;
 922         self.goalstack29 = self.goalstack30;
 923         self.goalstack30 = self.goalstack31;
 924         self.goalstack31 = world;
 925 };
 926
 927 // find the waypoint near a dynamic goal such as a dropped weapon
 928 entity(entity player, float walkfromwp) navigation_findnearestwaypoint =
 929 {
 930         local entity waylist, w, best;
 931         local float dist, bestdist;
 932         local vector v, org;
 933         org = player.origin + (self.mins_z - PL_MIN_z) * '0 0 1';
 934         if (navigation_testtracewalk)
 935                 te_plasmaburn(org);
 936         best = world;
 937         bestdist = 1000;
 938         waylist = findchain(classname, "waypoint");
 939         // do two scans, because box test is cheaper
 940         w = waylist;
 941         while (w)
 942         {
 943                 // if object is touching waypoint
 944                 if (boxesoverlap(org, org, w.absmin, w.absmax))
 945                         return w;
 946                 w = w.chain;
 947         }
 948         // box check failed, try walk
 949         w = waylist;
 950         while (w)
 951         {
 952                 // if object can walk from waypoint
 953                 if (w.wpisbox)
 954                 {
 955                         local vector wm1, wm2;
 956                         wm1 = w.origin + w.mins;
 957                         wm2 = w.origin + w.maxs;
 958                         v_x = bound(wm1_x, org_x, wm2_x);
 959                         v_y = bound(wm1_y, org_y, wm2_y);
 960                         v_z = bound(wm1_z, org_z, wm2_z);
 961                 }
 962                 else
 963                         v = w.origin;
 964                 dist = vlen(v - org);
 965                 if (bestdist > dist)
 966                 {
 967                         if (walkfromwp)
 968                         {
 969                                 traceline(v, org, TRUE, player);
 970                                 if (trace_fraction == 1)
 971                                 if (tracewalk(player, v, PL_MIN, PL_MAX, org))
 972                                 {
 973                                         bestdist = dist;
 974                                         best = w;
 975                                 }
 976                         }
 977                         else
 978                         {
 979                                 traceline(v, org, TRUE, player);
 980                                 if (trace_fraction == 1)
 981                                 if (tracewalk(player, org, PL_MIN, PL_MAX, v))
 982                                 {
 983                                         bestdist = dist;
 984                                         best = w;
 985                                 }
 986                         }
 987                 }
 988                 w = w.chain;
 989         }
 990         return best;
 991 }
 992
 993 // finds the waypoints near the bot initiating a navigation query
 994 void() navigation_markroutes_nearestwaypoints =
 995 {
 996         local entity head;
 997         local float dist;
 998         local vector v, m1, m2;
 999         //navigation_testtracewalk = TRUE;
1000         head = findchain(classname, "waypoint");
1001         while (head)
1002         {
1003                 m1 = head.origin + head.mins;
1004                 m2 = head.origin + head.maxs;
1005                 v = self.origin;
1006                 v_x = bound(m1_x, v_x, m2_x);
1007                 v_y = bound(m1_y, v_y, m2_y);
1008                 v_z = bound(m1_z, v_z, m2_z);
1009                 dist = vlen(v - self.origin);
1010                 if (dist < 1000)
1011                 {
1012                         if (dist < 4)
1013                         {
1014                                 // if bot is very near a waypoint don't bother doing a trace
1015                                 head.wpnearestpoint = v;
1016                                 head.wpcost = dist + head.dmg;
1017                                 head.wpfire = 1;
1018                                 head.enemy = world;
1019                         }
1020                         else
1021                         {
1022                                 tracebox(self.origin, '-16 -16 0', '16 16 0', v, TRUE, self);
1023                                 if (trace_fraction == 1)
1024                                 {
1025                                         if (tracewalk(self, self.origin, self.mins, self.maxs, v))
1026                                         {
1027                                                 head.wpnearestpoint = v;
1028                                                 head.wpcost = dist + head.dmg;
1029                                                 head.wpfire = 1;
1030                                                 head.enemy = world;
1031                                         }
1032                                 }
1033                         }
1034                 }
1035                 head = head.chain;
1036         }
1037         //navigation_testtracewalk = FALSE;
1038 }
1039
1040 // updates a path link if a waypoint link is better than the current one
1041 void(entity w, entity wp, float cost2, vector p) navigation_markroutes_checkwaypoint =
1042 {
1043         local vector m1;
1044         local vector m2;
1045         local vector v;
1046         if (wp.wpisbox)
1047         {
1048                 m1 = wp.absmin;
1049                 m2 = wp.absmax;
1050                 v_x = bound(m1_x, p_x, m2_x);
1051                 v_y = bound(m1_y, p_y, m2_y);
1052                 v_z = bound(m1_z, p_z, m2_z);
1053         }
1054         else
1055                 v = wp.origin;
1056         cost2 = cost2 + vlen(v);
1057         if (wp.wpcost > cost2)
1058         {
1059                 wp.wpcost = cost2;
1060                 wp.enemy = w;
1061                 wp.wpfire = 1;
1062                 wp.wpnearestpoint = v;
1063         }
1064 };
1065
1066 // queries the entire waypoint network for pathes leading away from the bot
1067 void() navigation_markroutes =
1068 {
1069         local entity w, wp, waylist;
1070         local float searching, cost, cost2;
1071         local vector p;
1072         w = waylist = findchain(classname, "waypoint");
1073         while (w)
1074         {
1075                 w.wpnearestpoint = '0 0 0';
1076                 w.wpcost = 10000000;
1077                 w.wpfire = 0;
1078                 w.enemy = world;
1079                 w = w.chain;
1080         }
1081         navigation_markroutes_nearestwaypoints();
1082         searching = TRUE;
1083         while (searching)
1084         {
1085                 searching = FALSE;
1086                 w = waylist;
1087                 while (w)
1088                 {
1089                         if (w.wpfire)
1090                         {
1091                                 searching = TRUE;
1092                                 w.wpfire = 0;
1093                                 cost = w.wpcost;
1094                                 p = w.wpnearestpoint;
1095                                 wp = w.wp00;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp00mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1096                                 wp = w.wp01;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp01mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1097                                 wp = w.wp02;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp02mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1098                                 wp = w.wp03;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp03mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1099                                 wp = w.wp04;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp04mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1100                                 wp = w.wp05;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp05mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1101                                 wp = w.wp06;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp06mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1102                                 wp = w.wp07;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp07mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1103                                 wp = w.wp08;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp08mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1104                                 wp = w.wp09;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp09mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1105                                 wp = w.wp10;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp10mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1106                                 wp = w.wp11;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp11mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1107                                 wp = w.wp12;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp12mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1108                                 wp = w.wp13;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp13mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1109                                 wp = w.wp14;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp14mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1110                                 wp = w.wp15;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp15mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1111                                 wp = w.wp16;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp16mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1112                                 wp = w.wp17;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp17mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1113                                 wp = w.wp18;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp18mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1114                                 wp = w.wp19;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp19mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1115                                 wp = w.wp20;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp20mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1116                                 wp = w.wp21;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp21mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1117                                 wp = w.wp22;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp22mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1118                                 wp = w.wp23;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp23mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1119                                 wp = w.wp24;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp24mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1120                                 wp = w.wp25;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp25mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1121                                 wp = w.wp26;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp26mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1122                                 wp = w.wp27;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp27mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1123                                 wp = w.wp28;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp28mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1124                                 wp = w.wp29;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp29mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1125                                 wp = w.wp30;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp30mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1126                                 wp = w.wp31;if (wp){cost2 = cost + wp.dmg;if (wp.wpcost > cost2 + wp.wp31mincost) navigation_markroutes_checkwaypoint(w, wp, cost2, p);
1127                                 }}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}
1128                         }
1129                         w = w.chain;
1130                 }
1131         }
1132 };
1133
1134 // updates the best goal according to a weighted calculation of travel cost and item value of a new proposed item
1135 void(entity e, float f) navigation_routerating =
1136 {
1137         if (!e)
1138                 return;
1139         //te_wizspike(e.origin);
1140         //bprint(etos(e));
1141         //bprint("\n");
1142         // update the cached waypoint link on a dynamic item entity
1143         if (time > e.nearestwaypointtimeout)
1144         {
1145                 e.nearestwaypoint = navigation_findnearestwaypoint(e, TRUE);
1146                 e.nearestwaypointtimeout = time + random() * 3 + 5;
1147         }
1148         if (e.nearestwaypoint)
1149         if (e.nearestwaypoint.wpcost < 10000000)
1150         {
1151                 //te_wizspike(e.nearestwaypoint.wpnearestpoint);
1152                 f = f / ((e.nearestwaypoint.wpcost + vlen(e.origin - e.nearestwaypoint.wpnearestpoint)) * 0.001 + 1);
1153                 if (navigation_bestrating < f)
1154                 {
1155                         navigation_bestrating = f;
1156                         navigation_bestgoal = e;
1157                 }
1158         }
1159 };
1160
1161 // replaces the goal stack with the path to a given item
1162 void(entity e) navigation_routetogoal =
1163 {
1164         // if already going to this goal, don't stop
1165         //if (self.goalentity == e)
1166         //      return;
1167         // clear the route and add the new one
1168         navigation_clearroute();
1169         self.goalentity = e;
1170         // if there is no goal, just exit
1171         if (!e)
1172                 return;
1173         // put the entity on the goal stack as the only item
1174         navigation_pushroute(e);
1175         //te_smallflash((e.absmin + e.absmax) * 0.5);
1176         //bprint("navigation_routetogoal(");
1177         //bprint(etos(e));
1178         //bprint(") : ");
1179         //bprint(etos(e));
1180         tracebox(self.origin, '-16 -16 0', '16 16 0', e.origin, TRUE, self);
1181         if (trace_fraction == 1)
1182         if (tracewalk(self, self.origin, PL_MIN, PL_MAX, e.origin))
1183                 return;
1184         // see if there are waypoints describing a path to the item
1185         e = e.nearestwaypoint;
1186         while (e != world)
1187         {
1188                 //bprint(" ");
1189                 //bprint(etos(e));
1190                 //te_smallflash((e.absmin + e.absmax) * 0.5);
1191                 //tracebox(self.origin, '-16 -16 0', '16 16 0', e.origin, TRUE, self);
1192                 //if (trace_fraction == 1)
1193                 //if (tracewalk(self, self.origin, PL_MIN, PL_MAX, e.origin))
1194                 //      break;
1195                 // add the waypoint to the path
1196                 navigation_pushroute(e);
1197                 e = e.enemy;
1198         }
1199         //bprint("\n");
1200 };
1201
1202 // removes any currently touching waypoints from the goal stack
1203 // (this is how bots detect if they have reached a goal)
1204 void() navigation_poptouchedgoals =
1205 {
1206         local vector org, m1, m2;
1207         org = self.origin;// + self.velocity * 0.1;
1208         m1 = org + self.mins;
1209         m2 = org + self.maxs;
1210         while (self.goalcurrent && boxesoverlap(m1, m2, self.goalcurrent.absmin, self.goalcurrent.absmax))
1211                 navigation_poproute();
1212 }
1213
1214 // begin a goal selection session (queries waypoint network)
1215 void() navigation_goalrating_start =
1216 {
1217         navigation_bestrating = -1;
1218         navigation_bestgoal = world;
1219         navigation_markroutes();
1220 };
1221
1222 // ends a goal selection session (updates goal stack to the best goal)
1223 void() navigation_goalrating_end =
1224 {
1225         navigation_routetogoal(navigation_bestgoal);
1226 };
1227
1228
1229
1230
1231
1232 //////////////////////////////////////////////////////////////////////////////
1233 // general bot functions
1234 //////////////////////////////////////////////////////////////////////////////
1235
1236 .float isbot; // true if this client is actually a bot
1237
1238 float skill;
1239 float currentbots;
1240 entity bot_list;
1241 .entity nextbot;
1242
1243 float sv_maxspeed;
1244 .float createdtime;
1245
1246 .float bot_attack;
1247 .float bot_dodge;
1248 .float bot_dodgerating;
1249
1250 //.float bot_painintensity;
1251 .float bot_firetimer;
1252 //.float bot_oldhealth;
1253 .void() bot_ai;
1254
1255 .entity bot_aimtarg;
1256 .float bot_aimlatency;
1257 .vector bot_aimselforigin;
1258 .vector bot_aimselfvelocity;
1259 .vector bot_aimtargorigin;
1260 .vector bot_aimtargvelocity;
1261
1262 .float bot_pickup;
1263 .float(entity player, entity item) bot_pickupevalfunc;
1264 .float bot_pickupbasevalue;
1265
1266 // used for aiming currently
1267 // FIXME: make the weapon code use these and then replace the calculations here with a call to the weapon code
1268 vector shotorg;
1269 vector shotdir;
1270
1271 const float BOTSKINS = 19;
1272 const float BOTNAMES = 32;
1273 string(float r) bot_namefornumber =
1274 {
1275         if (r <  1) return "Thunderstorm";
1276         if (r <  2) return "Darkness";
1277         if (r <  3) return "Scorcher";
1278         if (r <  4) return "Paranoia";
1279         if (r <  5) return "Eureka";
1280         if (r <  6) return "Mystery";
1281         if (r <  7) return "Toxic";
1282         if (r <  8) return "Dominion";
1283         if (r <  9) return "Pegasus";
1284         if (r < 10) return "Sensible";
1285         if (r < 11) return "Gator";
1286         if (r < 12) return "Kangaroo";
1287         if (r < 13) return "Deadline";
1288         if (r < 14) return "Frosty";
1289         if (r < 15) return "Roadkill";
1290         if (r < 16) return "Death";
1291         if (r < 17) return "Panic";
1292         if (r < 18) return "Discovery";
1293         if (r < 19) return "Shadow";
1294         if (r < 20) return "Acidic";
1295         if (r < 21) return "Dominator";
1296         if (r < 22) return "Hellfire";
1297         if (r < 23) return "Necrotic";
1298         if (r < 24) return "Newbie";
1299         if (r < 25) return "Spellbinder";
1300         if (r < 26) return "Lion";
1301         if (r < 27) return "Controlled";
1302         if (r < 28) return "Airhead";
1303         if (r < 29) return "Delirium";
1304         if (r < 30) return "Resurrection";
1305         if (r < 31) return "Danger";
1306         return "Flatline";
1307 };
1308
1309 string(float r) bot_skinfornumber =
1310 {
1311              if (r <  1) {self.playermodel = "models/player/carni.zym"          ;self.playerskin = "0";return "Carni"          ;}
1312         else if (r <  2) {self.playermodel = "models/player/carni.zym"          ;self.playerskin = "1";return "Armored Carni"  ;}
1313         else if (r <  3) {self.playermodel = "models/player/crash.zym"          ;self.playerskin = "0";return "Quark"          ;}
1314         else if (r <  4) {self.playermodel = "models/player/grunt.zym"          ;self.playerskin = "0";return "Grunt"          ;}
1315         else if (r <  5) {self.playermodel = "models/player/headhunter.zym"     ;self.playerskin = "0";return "HeadHunter"     ;}
1316         else if (r <  6) {self.playermodel = "models/player/insurrectionist.zym";self.playerskin = "0";return "Insurrectionist";}
1317         else if (r <  7) {self.playermodel = "models/player/lurk.zym"           ;self.playerskin = "0";return "Lurk"           ;}
1318         else if (r <  8) {self.playermodel = "models/player/lurk.zym"           ;self.playerskin = "1";return "Reptile"        ;}
1319         else if (r <  9) {self.playermodel = "models/player/lycanthrope.zym"    ;self.playerskin = "0";return "Lycanthrope"    ;}
1320         else if (r < 10) {self.playermodel = "models/player/marine.zym"         ;self.playerskin = "0";return "Marine"         ;}
1321         else if (r < 11) {self.playermodel = "models/player/nexus.zym"          ;self.playerskin = "0";return "Nexus"          ;}
1322         else if (r < 12) {self.playermodel = "models/player/nexus.zym"          ;self.playerskin = "1";return "Mulder"         ;}
1323         else if (r < 13) {self.playermodel = "models/player/nexus.zym"          ;self.playerskin = "2";return "Xolar"          ;}
1324         else if (r < 14) {self.playermodel = "models/player/pyria.zym"          ;self.playerskin = "0";return "Pyria"          ;}
1325         else if (r < 15) {self.playermodel = "models/player/shock.zym"          ;self.playerskin = "0";return "Shock"          ;}
1326         else if (r < 16) {self.playermodel = "models/player/skadi.zym"          ;self.playerskin = "0";return "Skadi"          ;}
1327         else if (r < 17) {self.playermodel = "models/player/specop.zym"         ;self.playerskin = "0";return "Specop"         ;}
1328         else             {self.playermodel = "models/player/visitant.zym"       ;self.playerskin = "0";return "Fricka"         ;}
1329 };
1330
1331 void() bot_setnameandstuff =
1332 {
1333         local string name;
1334         local float r, b, shirt, pants;
1335
1336         // this is really only a default, JoinBestTeam is called later
1337         pants = bound(0, floor(random() * 13), 13);
1338         //shirt = bound(0, floor(random() * 16), 15);
1339         shirt = pants;
1340         self.clientcolors = shirt * 16 + pants;
1341         self.team = pants + 1;
1342
1343         // now pick a name...
1344
1345         if (cvar("bot_usemodelnames"))
1346         {
1347                 // first see if all skins are taken
1348                 b = 0;
1349                 do
1350                 {
1351                         name = bot_skinfornumber(b);
1352                         b = b + 1;
1353                 }
1354                 while (b < BOTSKINS && find(world, netname, name));
1355
1356                 // randomly pick a skin, if it's taken either repeat until we find one,
1357                 // or give up if we already know all skins are taken
1358                 do
1359                 {
1360                         r = floor(random() * BOTSKINS);
1361                         name = bot_skinfornumber(r);
1362                 }
1363                 while (b < BOTSKINS && find(world, netname, name));
1364         }
1365         else
1366         {
1367                 // first see if all names are taken
1368                 b = 0;
1369                 do
1370                 {
1371                         name = bot_namefornumber(b);
1372                         b = b + 1;
1373                 }
1374                 while (b < BOTNAMES && find(world, netname, name));
1375
1376                 // randomly pick a name, if it's taken either repeat until we find one,
1377                 // or give up if we already know all names are taken
1378                 do
1379                 {
1380                         r = floor(random() * BOTNAMES);
1381                         name = bot_namefornumber(r);
1382                 }
1383                 while (b < BOTNAMES && find(world, netname, name));
1384
1385                 // randomly pick a skin
1386                 bot_skinfornumber(floor(random() * BOTSKINS));
1387         }
1388
1389         self.netname = name;
1390 };
1391
1392 float(entity e) bot_shouldattack =
1393 {
1394         if (e.team == self.team)
1395         {
1396                 if (e == self)
1397                         return FALSE;
1398                 if (teamplay)
1399                 if (e.team != 0)
1400                         return FALSE;
1401         }
1402         if (!e.takedamage)
1403                 return FALSE;
1404         if (e.deadflag)
1405                 return FALSE;
1406         return TRUE;
1407 };
1408
1409 void(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4) bot_lagfunc =
1410 {
1411         self.bot_aimtarg = e1;
1412         self.bot_aimlatency = self.ping; // FIXME?  Shouldn't this be in the lag item?
1413         self.bot_aimselforigin = v1;
1414         self.bot_aimselfvelocity = v2;
1415         self.bot_aimtargorigin = v3;
1416         self.bot_aimtargvelocity = v4;
1417 };
1418
1419 float(vector v, float maxfiredeviation) bot_aimdir =
1420 {
1421 /*
1422         local float snapcos;
1423         local vector olddir, newdir, desireddir;
1424
1425         makevectors(self.v_angle);
1426         olddir = newdir = v_forward;
1427         desireddir = normalize(v);
1428         snapcos = cos(cvar("bot_ai_aimskill_snapangle") * frametime * (skill + 1) * 0.5);
1429         if (desireddir * olddir < v_forward_x)
1430                 newdir = desireddir;
1431         else
1432         {
1433                 local float blendrate;
1434                 blendrate = cvar("bot_ai_aimskill_blendrate") * frametime * (skill + 1) * 0.5;
1435                 newdir = olddir + (desireddir - olddir) * bound(0, blendrate, 1);
1436         }
1437
1438         // decide whether to fire this time
1439         if ((desireddir * newdir) >= cos(maxfiredeviation))
1440                 self.bot_firetimer = time + 0.3;
1441
1442         self.v_angle = vectoangles(newdir);
1443         self.v_angle_x = self.v_angle_x * -1;
1444
1445         makevectors(self.v_angle);
1446         shotorg = self.origin + self.view_ofs;
1447         shotdir = newdir;
1448
1449         return time < self.bot_firetimer;
1450 */
1451
1452         local float dist;
1453         local vector desiredang, diffang;
1454
1455         //dprint("aim ", self.netname, ": old:", vtos(self.v_angle));
1456         // make sure v_angle is sane first
1457         //self.v_angle_x = bound(-180, self.v_angle_x, 180);
1458         //while (self.v_angle_x < -180) self.v_angle_x = self.v_angle_x + 360;
1459         //while (self.v_angle_x >= 180) self.v_angle_x = self.v_angle_x - 360;
1460         while (self.v_angle_y < -180) self.v_angle_y = self.v_angle_y + 360;
1461         while (self.v_angle_y >= 180) self.v_angle_y = self.v_angle_y - 360;
1462         //while (self.v_angle_z < -180) self.v_angle_z = self.v_angle_z + 360;
1463         //while (self.v_angle_z >= 180) self.v_angle_z = self.v_angle_z - 360;
1464         self.v_angle_z = 0;
1465
1466         // get the desired angles to aim at
1467         //dprint(" at:", vtos(v));
1468         v = normalize(v);
1469         //te_lightning2(world, self.origin + self.view_ofs, self.origin + self.view_ofs + v * 200);
1470         desiredang = vectoangles(v);
1471         //dprint(" desired:", vtos(desiredang));
1472         if (desiredang_x >= 180)
1473                 desiredang_x = desiredang_x - 360;
1474         desiredang_x = 0 - desiredang_x;
1475         desiredang_z = self.v_angle_z;
1476         desiredang_x = bound(-90, desiredang_x, 90);
1477         //dprint(" / ", vtos(desiredang));
1478
1479         //// pain throws off aim
1480         //if (self.bot_painintensity)
1481         //{
1482         //      // shake from pain
1483         //      desiredang = desiredang + randomvec() * self.bot_painintensity * 0.2;
1484         //}
1485
1486         // calculate turn angles
1487         diffang = desiredang - self.v_angle;
1488         //dprint(" diff:", vtos(diffang));
1489
1490         // wrap yaw turn
1491         while (diffang_y < -180)
1492                 diffang_y = diffang_y + 360;
1493         while (diffang_y >  180)
1494                 diffang_y = diffang_y - 360;
1495
1496         // jitter tracking
1497         dist = vlen(diffang);
1498         //diffang = diffang + randomvec() * (dist * 0.05 * (3.5 - bound(0, skill, 3)));
1499
1500         // turn
1501         local float r, fixedrate, blendrate;
1502         fixedrate = cvar("bot_ai_aimskill_fixedrate") / dist;
1503         blendrate = cvar("bot_ai_aimskill_blendrate");
1504         r = max(fixedrate, blendrate);
1505         self.v_angle = self.v_angle + diffang * bound(0, r * frametime * (skill + 1) * 0.5, 1);
1506         self.v_angle_z = 0;
1507         while (self.v_angle_y < -180)
1508                 self.v_angle_y = self.v_angle_y + 360;
1509         while (self.v_angle_y >= 180)
1510                 self.v_angle_y = self.v_angle_y - 360;
1511         //dprint(" turn:", vtos(self.v_angle));
1512
1513         makevectors(self.v_angle);
1514         shotorg = self.origin + self.view_ofs;
1515         shotdir = v_forward;
1516         //dprint(" dir:", vtos(v_forward));
1517         //te_lightning2(world, shotorg, shotorg + shotdir * 100);
1518
1519         // calculate turn angles again
1520         diffang = desiredang - self.v_angle;
1521         while (diffang_y < -180)
1522                 diffang_y = diffang_y + 360;
1523         while (diffang_y >  180)
1524                 diffang_y = diffang_y - 360;
1525
1526         //bprint("e ");bprintvector(diffang);bprint(" < ");bprintfloat(maxfiredeviation);bprint("\n");
1527
1528         // decide whether to fire this time
1529         if ((normalize(v) * shotdir) >= cos(maxfiredeviation))
1530                 self.bot_firetimer = time + 0.3;
1531         //dprint(" diff:", vtos(diffang), "\n");
1532
1533         return time < self.bot_firetimer;
1534 };
1535
1536 vector(vector targorigin, vector targvelocity, float shotspeed, float shotdelay) bot_shotlead =
1537 {
1538         return targorigin + targvelocity * (shotdelay + vlen(targorigin - shotorg) / shotspeed);
1539 };
1540
1541 float(float shotspeed, float shotspeedupward, float maxshottime, float applygravity) bot_aim =
1542 {
1543         local float f, r;
1544         local vector v;
1545         /*
1546         eprint(self);
1547         dprint("bot_aim(", ftos(shotspeed));
1548         dprint(", ", ftos(shotspeedupward));
1549         dprint(", ", ftos(maxshottime));
1550         dprint(", ", ftos(applygravity));
1551         dprint(");\n");
1552         */
1553         if (!shotspeed)
1554         {
1555                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " shotspeed is zero!\n");
1556                 shotspeed = 1000000;
1557         }
1558         if (!maxshottime)
1559         {
1560                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " maxshottime is zero!\n");
1561                 maxshottime = 1;
1562         }
1563         makevectors(self.v_angle);
1564         shotorg = self.origin + self.view_ofs;
1565         shotdir = v_forward;
1566         v = bot_shotlead(self.bot_aimtargorigin, self.bot_aimtargvelocity, shotspeed, self.bot_aimlatency);
1567         r = vlen(v - shotorg);
1568         if (applygravity && self.bot_aimtarg)
1569         {
1570                 if (!findtrajectorywithleading(shotorg, '0 0 0', '0 0 0', self.bot_aimtarg, shotspeed, shotspeedupward, maxshottime, 0, self))
1571                         return FALSE;
1572                 f = bot_aimdir(findtrajectory_velocity - shotspeedupward * '0 0 1', min(10, 720 / r));
1573         }
1574         else
1575         {
1576                 f = bot_aimdir(v - shotorg, min(10, 720 / r));
1577                 //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");
1578                 traceline(shotorg, shotorg + shotdir * 10000, FALSE, self);
1579                 if (trace_fraction < 1)
1580                 if (!bot_shouldattack(trace_ent))
1581                         return FALSE;
1582         }
1583         if (r > maxshottime * shotspeed)
1584                 return FALSE;
1585         return f;
1586 };
1587
1588 // TODO: move this painintensity code to the player damage code
1589 void() bot_think =
1590 {
1591         //if (self.bot_painintensity > 0)
1592         //      self.bot_painintensity = self.bot_painintensity - (skill + 1) * 40 * frametime;
1593
1594         //self.bot_painintensity = self.bot_painintensity + self.bot_oldhealth - self.health;
1595         //self.bot_painintensity = bound(0, self.bot_painintensity, 100);
1596
1597         if (self.fixangle)
1598         {
1599                 self.v_angle = self.angles;
1600                 self.v_angle_z = 0;
1601                 self.fixangle = FALSE;
1602         }
1603
1604         self.dmg_take = 0;
1605         self.dmg_save = 0;
1606         self.dmg_inflictor = world;
1607
1608         // calculate an aiming latency based on the skill setting
1609         // (simulated network latency + naturally delayed reflexes)
1610         self.ping = 0.5 - bound(0, 0.1 * cvar("skill"), 0.3);
1611
1612         // clear buttons
1613         self.button0 = 0;
1614         self.button1 = 0;
1615         self.button2 = 0;
1616         self.button3 = 0;
1617         self.button4 = 0;
1618         self.button5 = 0;
1619         self.button6 = 0;
1620         self.button7 = 0;
1621         self.button8 = 0;
1622         self.buttonchat = 0;
1623         self.buttonuse = 0;
1624
1625         // if dead, just wait until we can respawn
1626         if (self.deadflag)
1627         {
1628                 if (self.deadflag == DEAD_RESPAWNABLE)
1629                         self.button2 = 1; // press jump to respawn
1630                 return;
1631         }
1632
1633         // now call the current bot AI (havocbot for example)
1634         self.bot_ai();
1635 };
1636
1637 entity bot_strategytoken;
1638 entity player_list;
1639 .entity nextplayer;
1640 void() bot_relinkplayerlist =
1641 {
1642         local entity e;
1643         local entity prevbot;
1644         player_count = 0;
1645         currentbots = 0;
1646         player_list = e = findchainflags(flags, FL_CLIENT);
1647         bot_list = world;
1648         prevbot = world;
1649         while (e)
1650         {
1651                 player_count = player_count + 1;
1652                 e.nextplayer = e.chain;
1653                 if (clienttype(e) == CLIENTTYPE_BOT)
1654                 {
1655                         if (prevbot)
1656                                 prevbot.nextbot = e;
1657                         else
1658                                 bot_list = e;
1659                         prevbot = e;
1660                         currentbots = currentbots + 1;
1661                 }
1662                 e = e.chain;
1663         }
1664         dprint(strcat("relink - ", ftos(currentbots), " bots seen.\n"));
1665         bot_strategytoken = bot_list;
1666 };
1667
1668 void() havocbot_setupbot;
1669 float JoinBestTeam(entity pl, float only_return_best);
1670 void() bot_clientconnect =
1671 {
1672         if (clienttype(self) != CLIENTTYPE_BOT)
1673                 return;
1674         self.lag_func = bot_lagfunc;
1675         self.isbot = TRUE;
1676         self.createdtime = self.nextthink;
1677         JoinBestTeam(self, FALSE);
1678         havocbot_setupbot();
1679 };
1680
1681 entity() bot_spawn =
1682 {
1683         local entity oldself, bot;
1684         bot = spawnclient();
1685         if (bot)
1686         {
1687                 currentbots = currentbots + 1;
1688                 oldself = self;
1689                 self = bot;
1690                 bot_setnameandstuff();
1691                 ClientConnect();
1692                 PutClientInServer();
1693                 self = oldself;
1694         }
1695         return bot;
1696 };
1697
1698 void() bot_removenewest =
1699 {
1700         local float besttime;
1701         local entity best, head;
1702         head = findchainfloat(isbot, TRUE);
1703         if (!head)
1704                 return;
1705         best = head;
1706         besttime = head.createdtime;
1707         while (head)
1708         {
1709                 if (besttime < head.createdtime)
1710                 {
1711                         besttime = head.createdtime;
1712                         best = head;
1713                 }
1714                 head = head.chain;
1715         }
1716         currentbots = currentbots - 1;
1717         dropclient(best);
1718 };
1719
1720 float botframe_waypointeditorlightningtime;
1721 void() botframe_showwaypointlinks =
1722 {
1723         local entity player, head, w;
1724         if (time < botframe_waypointeditorlightningtime)
1725                 return;
1726         botframe_waypointeditorlightningtime = time + 0.5;
1727         player = find(world, classname, "player");
1728         while (player)
1729         {
1730                 if (!player.isbot)
1731                 if (player.flags & FL_ONGROUND)
1732                 {
1733                         //navigation_testtracewalk = TRUE;
1734                         head = navigation_findnearestwaypoint(player, FALSE);
1735                         //navigation_testtracewalk = FALSE;
1736                         if (head)
1737                         {
1738                                 w = head     ;if (w) te_lightning2(world, w.origin, player.origin);
1739                                 w = head.wp00;if (w) te_lightning2(world, w.origin, head.origin);
1740                                 w = head.wp01;if (w) te_lightning2(world, w.origin, head.origin);
1741                                 w = head.wp02;if (w) te_lightning2(world, w.origin, head.origin);
1742                                 w = head.wp03;if (w) te_lightning2(world, w.origin, head.origin);
1743                                 w = head.wp04;if (w) te_lightning2(world, w.origin, head.origin);
1744                                 w = head.wp05;if (w) te_lightning2(world, w.origin, head.origin);
1745                                 w = head.wp06;if (w) te_lightning2(world, w.origin, head.origin);
1746                                 w = head.wp07;if (w) te_lightning2(world, w.origin, head.origin);
1747                                 w = head.wp08;if (w) te_lightning2(world, w.origin, head.origin);
1748                                 w = head.wp09;if (w) te_lightning2(world, w.origin, head.origin);
1749                                 w = head.wp10;if (w) te_lightning2(world, w.origin, head.origin);
1750                                 w = head.wp11;if (w) te_lightning2(world, w.origin, head.origin);
1751                                 w = head.wp12;if (w) te_lightning2(world, w.origin, head.origin);
1752                                 w = head.wp13;if (w) te_lightning2(world, w.origin, head.origin);
1753                                 w = head.wp14;if (w) te_lightning2(world, w.origin, head.origin);
1754                                 w = head.wp15;if (w) te_lightning2(world, w.origin, head.origin);
1755                                 w = head.wp16;if (w) te_lightning2(world, w.origin, head.origin);
1756                                 w = head.wp17;if (w) te_lightning2(world, w.origin, head.origin);
1757                                 w = head.wp18;if (w) te_lightning2(world, w.origin, head.origin);
1758                                 w = head.wp19;if (w) te_lightning2(world, w.origin, head.origin);
1759                                 w = head.wp20;if (w) te_lightning2(world, w.origin, head.origin);
1760                                 w = head.wp21;if (w) te_lightning2(world, w.origin, head.origin);
1761                                 w = head.wp22;if (w) te_lightning2(world, w.origin, head.origin);
1762                                 w = head.wp23;if (w) te_lightning2(world, w.origin, head.origin);
1763                                 w = head.wp24;if (w) te_lightning2(world, w.origin, head.origin);
1764                                 w = head.wp25;if (w) te_lightning2(world, w.origin, head.origin);
1765                                 w = head.wp26;if (w) te_lightning2(world, w.origin, head.origin);
1766                                 w = head.wp27;if (w) te_lightning2(world, w.origin, head.origin);
1767                                 w = head.wp28;if (w) te_lightning2(world, w.origin, head.origin);
1768                                 w = head.wp29;if (w) te_lightning2(world, w.origin, head.origin);
1769                                 w = head.wp30;if (w) te_lightning2(world, w.origin, head.origin);
1770                                 w = head.wp31;if (w) te_lightning2(world, w.origin, head.origin);
1771                         }
1772                 }
1773                 player = find(player, classname, "player");
1774         }
1775 };
1776
1777 entity botframe_dangerwaypoint;
1778 void() botframe_updatedangerousobjects =
1779 {
1780         local entity head, bot_dodgelist;
1781         local vector m1, m2, v;
1782         local float c, d, danger;
1783         c = 0;
1784         bot_dodgelist = findchainfloat(bot_dodge, TRUE);
1785         botframe_dangerwaypoint = find(botframe_dangerwaypoint, classname, "waypoint");
1786         while (botframe_dangerwaypoint != world)
1787         {
1788                 danger = 0;
1789                 m1 = botframe_dangerwaypoint.mins;
1790                 m2 = botframe_dangerwaypoint.maxs;
1791                 head = bot_dodgelist;
1792                 while (head)
1793                 {
1794                         v = head.origin;
1795                         v_x = bound(m1_x, v_x, m2_x);
1796                         v_y = bound(m1_y, v_y, m2_y);
1797                         v_z = bound(m1_z, v_z, m2_z);
1798                         d = head.bot_dodgerating - vlen(head.origin - v);
1799                         if (d > 0)
1800                         {
1801                                 traceline(head.origin, v, TRUE, world);
1802                                 if (trace_fraction == 1)
1803                                         danger = danger + d;
1804                         }
1805                         head = head.chain;
1806                 }
1807                 botframe_dangerwaypoint.dmg = danger;
1808                 c = c + 1;
1809                 if (c >= 256)
1810                         break;
1811                 botframe_dangerwaypoint = find(botframe_dangerwaypoint, classname, "waypoint");
1812         }
1813 };
1814
1815
1816 float botframe_spawnedwaypoints;
1817 void() bot_serverframe =
1818 {
1819         float realplayers, bots;
1820
1821         if (intermission_running)
1822                 return;
1823
1824         if (time < 2)
1825                 return;
1826
1827         realplayers = player_count - currentbots;
1828
1829         // add/remove bots if needed to make sure there are at least
1830         // minplayers+bot_number, or remove all bots if no one is playing
1831         if (realplayers)
1832         {
1833                 float realminplayers, minplayers;
1834                 realminplayers = cvar("minplayers");
1835                 minplayers = bound(0, floor(realminplayers), maxclients - 1);
1836                 if (realminplayers != minplayers)
1837                         cvar_set("minplayers", ftos(minplayers));
1838
1839                 float realminbots, minbots;
1840                 realminbots = cvar("bot_number");
1841                 minbots = bound(0, floor(realminbots), maxclients - 1);
1842                 if (realminbots != minbots)
1843                         cvar_set("bot_number", ftos(minbots));
1844
1845                 bots = bound(minbots, minplayers - realplayers, maxclients);
1846         }
1847         else
1848         {
1849                 // if there are no players, remove bots
1850                 bots = 0;
1851         }
1852
1853         // only add one bot per frame to avoid utter chaos
1854         while (currentbots < bots)
1855         {
1856                 if (bot_spawn() == world)
1857                 {
1858                         bprint("Can not add bot, server full.\n");
1859                         cvar_set("bot_number", ftos(currentbots));
1860                         bots = currentbots;
1861                         break;
1862                 }
1863         }
1864         while (currentbots > bots)
1865                 bot_removenewest();
1866
1867         if (bots > 0 || cvar("g_waypointeditor"))
1868         if (!botframe_spawnedwaypoints)
1869         {
1870                 botframe_spawnedwaypoints = TRUE;
1871                 waypoint_loadall();
1872         }
1873
1874         if (bot_list)
1875         {
1876                 // cycle the goal token from one bot to the next each frame
1877                 // (this prevents them from all doing waypoint searches on the same
1878                 //  frame, which causes choppy framerates)
1879                 if (bot_strategytoken)
1880                         bot_strategytoken = bot_strategytoken.nextbot;
1881                 if (!bot_strategytoken)
1882                         bot_strategytoken = bot_list;
1883
1884                 botframe_updatedangerousobjects();
1885         }
1886
1887         if (cvar("g_waypointeditor"))
1888                 botframe_showwaypointlinks();
1889 };