qcsrc/server/bot/havocbot/havocbot.qc

   1 #include "havocbot.qh"
   2 #include "role_ctf.qc"
   3 #include "role_onslaught.qc"
   4 #include "role_keyhunt.qc"
   5 #include "roles.qc"
   6
   7 void havocbot_ai()
   8 {
   9         if(self.draggedby)
  10                 return;
  11
  12         if(bot_execute_commands())
  13                 return;
  14
  15         if (bot_strategytoken == self)
  16         if (!bot_strategytoken_taken)
  17         {
  18                 if(self.havocbot_blockhead)
  19                 {
  20                         self.havocbot_blockhead = FALSE;
  21                 }
  22                 else
  23                 {
  24                         if not(self.jumppadcount)
  25                                 self.havocbot_role();
  26                 }
  27
  28                 // TODO: tracewalk() should take care of this job (better path finding under water)
  29                 // if we don't have a goal and we're under water look for a waypoint near the "shore" and push it
  30                 if(self.deadflag != DEAD_NO)
  31                 if(self.goalcurrent==world)
  32                 if(self.waterlevel==WATERLEVEL_SWIMMING || self.aistatus & AI_STATUS_OUT_WATER)
  33                 {
  34                         // Look for the closest waypoint out of water
  35                         local entity newgoal, head;
  36                         local float bestdistance, distance;
  37
  38                         newgoal = world;
  39                         bestdistance = 10000;
  40                         for (head = findchain(classname, "waypoint"); head; head = head.chain)
  41                         {
  42                                 distance = vlen(head.origin - self.origin);
  43                                 if(distance>10000)
  44                                         continue;
  45
  46                                 if(head.origin_z < self.origin_z)
  47                                         continue;
  48
  49                                 if(head.origin_z - self.origin_z - self.view_ofs_z > 100)
  50                                         continue;
  51
  52                                 if (pointcontents(head.origin + head.maxs + '0 0 1') != CONTENT_EMPTY)
  53                                         continue;
  54
  55                                 traceline(self.origin + self.view_ofs , head.origin, TRUE, head);
  56
  57                                 if(trace_fraction<1)
  58                                         continue;
  59
  60                                 if(distance<bestdistance)
  61                                 {
  62                                         newgoal = head;
  63                                         bestdistance = distance;
  64                                 }
  65                         }
  66
  67                         if(newgoal)
  68                         {
  69                         //      te_wizspike(newgoal.origin);
  70                                 navigation_pushroute(newgoal);
  71                         }
  72                 }
  73
  74                 // token has been used this frame
  75                 bot_strategytoken_taken = TRUE;
  76         }
  77
  78         if(self.deadflag != DEAD_NO)
  79                 return;
  80
  81         havocbot_chooseenemy();
  82         if (self.bot_chooseweapontime < time )
  83         {
  84                 self.bot_chooseweapontime = time + autocvar_bot_ai_chooseweaponinterval;
  85                 havocbot_chooseweapon();
  86         }
  87         havocbot_aim();
  88         lag_update();
  89         if (self.bot_aimtarg)
  90         {
  91                 self.aistatus |= AI_STATUS_ATTACKING;
  92                 self.aistatus &~= AI_STATUS_ROAMING;
  93
  94                 if(self.weapons)
  95                 {
  96                         weapon_action(self.weapon, WR_AIM);
  97                         if (autocvar_bot_nofire || IS_INDEPENDENT_PLAYER(self))
  98                         {
  99                                 self.BUTTON_ATCK = FALSE;
 100                                 self.BUTTON_ATCK2 = FALSE;
 101                         }
 102                         else
 103                         {
 104                                 if(self.BUTTON_ATCK||self.BUTTON_ATCK2)
 105                                         self.lastfiredweapon = self.weapon;
 106                         }
 107                 }
 108                 else
 109                 {
 110                         if(self.bot_aimtarg.classname=="player")
 111                                 bot_aimdir(self.bot_aimtarg.origin + self.bot_aimtarg.view_ofs - self.origin - self.view_ofs , -1);
 112                 }
 113         }
 114         else if (self.goalcurrent)
 115         {
 116                 self.aistatus |= AI_STATUS_ROAMING;
 117                 self.aistatus &~= AI_STATUS_ATTACKING;
 118
 119                 local vector now,v,next;//,heading;
 120                 local float aimdistance,skillblend,distanceblend,blend;
 121                 next = now = self.goalcurrent.origin - (self.origin + self.view_ofs);
 122                 aimdistance = vlen(now);
 123                 //heading = self.velocity;
 124                 //dprint(self.goalstack01.classname,etos(self.goalstack01),"\n");
 125                 if(
 126                         self.goalstack01 != self && self.goalstack01 != world && self.aistatus & AI_STATUS_RUNNING == 0 &&
 127                         !(self.goalcurrent.wpflags & WAYPOINTFLAG_TELEPORT)
 128                 )
 129                         next = self.goalstack01.origin - (self.origin + self.view_ofs);
 130
 131                 skillblend=bound(0,(skill+self.bot_moveskill-2.5)*0.5,1); //lower skill player can't preturn
 132                 distanceblend=bound(0,aimdistance/autocvar_bot_ai_keyboard_distance,1);
 133                 blend = skillblend * (1-distanceblend);
 134                 //v = (now * (distanceblend) + next * (1-distanceblend)) * (skillblend) + now * (1-skillblend);
 135                 //v = now * (distanceblend) * (skillblend) + next * (1-distanceblend) * (skillblend) + now * (1-skillblend);
 136                 //v = now * ((1-skillblend) + (distanceblend) * (skillblend)) + next * (1-distanceblend) * (skillblend);
 137                 v = now + blend * (next - now);
 138                 //dprint(etos(self), " ");
 139                 //dprint(vtos(now), ":", vtos(next), "=", vtos(v), " (blend ", ftos(blend), ")\n");
 140                 //v = now * (distanceblend) + next * (1-distanceblend);
 141                 if (self.waterlevel < WATERLEVEL_SWIMMING)
 142                         v_z = 0;
 143                 //dprint("walk at:", vtos(v), "\n");
 144                 //te_lightning2(world, self.origin, self.goalcurrent.origin);
 145                 bot_aimdir(v, -1);
 146         }
 147         havocbot_movetogoal();
 148 };
 149
 150 void havocbot_keyboard_movement(vector destorg)
 151 {
 152         local vector keyboard;
 153         local float blend, maxspeed;
 154         float sk;
 155
 156         sk = skill + self.bot_moveskill;
 157
 158         maxspeed = autocvar_sv_maxspeed;
 159
 160         if (time < self.havocbot_keyboardtime)
 161                 return;
 162
 163         self.havocbot_keyboardtime =
 164                 max(
 165                         self.havocbot_keyboardtime
 166                                 + 0.05/max(1, sk+self.havocbot_keyboardskill)
 167                                 + random()*0.025/max(0.00025, skill+self.havocbot_keyboardskill)
 168                 , time);
 169         keyboard = self.movement * (1.0 / maxspeed);
 170
 171         local float trigger, trigger1;
 172         blend = bound(0,sk*0.1,1);
 173         trigger = autocvar_bot_ai_keyboard_treshold;
 174         trigger1 = 0 - trigger;
 175
 176         // categorize forward movement
 177         // at skill < 1.5 only forward
 178         // at skill < 2.5 only individual directions
 179         // at skill < 4.5 only individual directions, and forward diagonals
 180         // at skill >= 4.5, all cases allowed
 181         if (keyboard_x > trigger)
 182         {
 183                 keyboard_x = 1;
 184                 if (sk < 2.5)
 185                         keyboard_y = 0;
 186         }
 187         else if (keyboard_x < trigger1 && sk > 1.5)
 188         {
 189                 keyboard_x = -1;
 190                 if (sk < 4.5)
 191                         keyboard_y = 0;
 192         }
 193         else
 194         {
 195                 keyboard_x = 0;
 196                 if (sk < 1.5)
 197                         keyboard_y = 0;
 198         }
 199         if (sk < 4.5)
 200                 keyboard_z = 0;
 201
 202         if (keyboard_y > trigger)
 203                 keyboard_y = 1;
 204         else if (keyboard_y < trigger1)
 205                 keyboard_y = -1;
 206         else
 207                 keyboard_y = 0;
 208
 209         if (keyboard_z > trigger)
 210                 keyboard_z = 1;
 211         else if (keyboard_z < trigger1)
 212                 keyboard_z = -1;
 213         else
 214                 keyboard_z = 0;
 215
 216         self.havocbot_keyboard = keyboard * maxspeed;
 217         if (self.havocbot_ducktime>time) self.BUTTON_CROUCH=TRUE;
 218
 219         keyboard = self.havocbot_keyboard;
 220         blend = bound(0,vlen(destorg-self.origin)/autocvar_bot_ai_keyboard_distance,1); // When getting close move with 360 degree
 221         //dprint("movement ", vtos(self.movement), " keyboard ", vtos(keyboard), " blend ", ftos(blend), "\n");
 222         self.movement = self.movement + (keyboard - self.movement) * blend;
 223 };
 224
 225 void havocbot_bunnyhop(vector dir)
 226 {
 227         local float bunnyhopdistance;
 228         local vector deviation;
 229         local float maxspeed;
 230
 231         if(autocvar_g_midair)
 232                 return;
 233
 234         // Don't jump when using some weapons
 235         if(self.aistatus & AI_STATUS_ATTACKING)
 236         if(self.weapon & WEP_CAMPINGRIFLE)
 237                 return;
 238
 239         if(self.goalcurrent.classname == "player")
 240                 return;
 241
 242         maxspeed = autocvar_sv_maxspeed;
 243
 244         if(self.aistatus & AI_STATUS_DANGER_AHEAD)
 245         {
 246                 self.aistatus &~= AI_STATUS_RUNNING;
 247                 self.BUTTON_JUMP = FALSE;
 248                 self.bot_canruntogoal = 0;
 249                 self.bot_timelastseengoal = 0;
 250                 return;
 251         }
 252
 253         if(self.waterlevel > WATERLEVEL_WETFEET)
 254         {
 255                 self.aistatus &~= AI_STATUS_RUNNING;
 256                 return;
 257         }
 258
 259         if(self.bot_lastseengoal != self.goalcurrent && !(self.aistatus & AI_STATUS_RUNNING))
 260         {
 261                 self.bot_canruntogoal = 0;
 262                 self.bot_timelastseengoal = 0;
 263         }
 264
 265         bunnyhopdistance = vlen(self.origin - self.goalcurrent.origin);
 266
 267         // Run only to visible goals
 268         if(self.flags & FL_ONGROUND)
 269         if(self.speed==maxspeed)
 270         if(checkpvs(self.origin + self.view_ofs, self.goalcurrent))
 271         {
 272                         self.bot_lastseengoal = self.goalcurrent;
 273
 274                         // seen it before
 275                         if(self.bot_timelastseengoal)
 276                         {
 277                                 // for a period of time
 278                                 if(time - self.bot_timelastseengoal > autocvar_bot_ai_bunnyhop_firstjumpdelay)
 279                                 {
 280                                         local float checkdistance;
 281                                         checkdistance = TRUE;
 282
 283                                         // don't run if it is too close
 284                                         if(self.bot_canruntogoal==0)
 285                                         {
 286                                                 if(bunnyhopdistance > autocvar_bot_ai_bunnyhop_startdistance)
 287                                                         self.bot_canruntogoal = 1;
 288                                                 else
 289                                                         self.bot_canruntogoal = -1;
 290                                         }
 291
 292                                         if(self.bot_canruntogoal != 1)
 293                                                 return;
 294
 295                                         if(self.aistatus & AI_STATUS_ROAMING)
 296                                         if(self.goalcurrent.classname=="waypoint")
 297                                         if not(self.goalcurrent.wpflags & WAYPOINTFLAG_PERSONAL)
 298                                         if(fabs(self.goalcurrent.origin_z - self.origin_z) < self.maxs_z - self.mins_z)
 299                                         if(self.goalstack01!=world)
 300                                         {
 301                                                 deviation = vectoangles(self.goalstack01.origin - self.origin) - vectoangles(self.goalcurrent.origin - self.origin);
 302                                                 while (deviation_y < -180) deviation_y = deviation_y + 360;
 303                                                 while (deviation_y > 180) deviation_y = deviation_y - 360;
 304
 305                                                 if(fabs(deviation_y) < 20)
 306                                                 if(bunnyhopdistance < vlen(self.origin - self.goalstack01.origin))
 307                                                 if(fabs(self.goalstack01.origin_z - self.goalcurrent.origin_z) < self.maxs_z - self.mins_z)
 308                                                 {
 309                                                         if(vlen(self.goalcurrent.origin - self.goalstack01.origin) > autocvar_bot_ai_bunnyhop_startdistance)
 310                                                         if(checkpvs(self.origin + self.view_ofs, self.goalstack01))
 311                                                         {
 312                                                                 checkdistance = FALSE;
 313                                                         }
 314                                                 }
 315                                         }
 316
 317                                         if(checkdistance)
 318                                         {
 319                                                 self.aistatus &~= AI_STATUS_RUNNING;
 320                                                 if(bunnyhopdistance > autocvar_bot_ai_bunnyhop_stopdistance)
 321                                                         self.BUTTON_JUMP = TRUE;
 322                                         }
 323                                         else
 324                                         {
 325                                                 self.aistatus |= AI_STATUS_RUNNING;
 326                                                 self.BUTTON_JUMP = TRUE;
 327                                         }
 328                                 }
 329                         }
 330                         else
 331                         {
 332                                 self.bot_timelastseengoal = time;
 333                         }
 334         }
 335         else
 336         {
 337                 self.bot_timelastseengoal = 0;
 338         }
 339
 340         // Release jump button
 341         if(self.flags & FL_ONGROUND == 0)
 342         {
 343                 if(self.velocity_z < 0 || vlen(self.velocity)<maxspeed)
 344                         self.BUTTON_JUMP = FALSE;
 345
 346                 // Strafe
 347                 if(self.aistatus & AI_STATUS_RUNNING)
 348                 if(vlen(self.velocity)>maxspeed)
 349                 {
 350                         deviation = vectoangles(dir) - vectoangles(self.velocity);
 351                         while (deviation_y < -180) deviation_y = deviation_y + 360;
 352                         while (deviation_y > 180) deviation_y = deviation_y - 360;
 353
 354                         if(fabs(deviation_y)>10)
 355                                 self.movement_x = 0;
 356
 357                         if(deviation_y>10)
 358                                 self.movement_y = maxspeed * -1;
 359                         else if(deviation_y<10)
 360                                 self.movement_y = maxspeed;
 361
 362                 }
 363         }
 364 };
 365
 366 void havocbot_movetogoal()
 367 {
 368         local vector destorg;
 369         local vector diff;
 370         local vector dir;
 371         local vector flatdir;
 372         local vector m1;
 373         local vector m2;
 374         local vector evadeobstacle;
 375         local vector evadelava;
 376         local float s;
 377         local float maxspeed;
 378         //local float dist;
 379         local vector dodge;
 380         //if (self.goalentity)
 381         //      te_lightning2(self, self.origin, (self.goalentity.absmin + self.goalentity.absmax) * 0.5);
 382         self.movement = '0 0 0';
 383         maxspeed = autocvar_sv_maxspeed;
 384
 385         // Jetpack navigation
 386         if(self.goalcurrent)
 387         if(self.navigation_jetpack_goal)
 388         if(self.goalcurrent==self.navigation_jetpack_goal)
 389         if(self.ammo_fuel)
 390         {
 391                 #ifdef DEBUG_BOT_GOALSTACK
 392                         debuggoalstack();
 393                         te_wizspike(self.navigation_jetpack_point);
 394                 #endif
 395
 396                 // Take off
 397                 if not(self.aistatus & AI_STATUS_JETPACK_FLYING)
 398                 {
 399                         // Brake almost completely so it can get a good direction
 400                         if(vlen(self.velocity)>10)
 401                                 return;
 402                         self.aistatus |= AI_STATUS_JETPACK_FLYING;
 403                 }
 404
 405                 makevectors(self.v_angle_y * '0 1 0');
 406                 dir = normalize(self.navigation_jetpack_point - self.origin);
 407
 408                 // Landing
 409                 if(self.aistatus & AI_STATUS_JETPACK_LANDING)
 410                 {
 411                         // Calculate brake distance in xy
 412                         float db, v, d;
 413                         vector dxy;
 414
 415                         dxy = self.origin - self.goalcurrent.origin; dxy_z = 0;
 416                         d = vlen(dxy);
 417                         v = vlen(self.velocity -  self.velocity_z * '0 0 1');
 418                         db = (pow(v,2) / (autocvar_g_jetpack_acceleration_side * 2)) + 100;
 419                 //      dprint("distance ", ftos(ceil(d)), " velocity ", ftos(ceil(v)), " brake at ", ftos(ceil(db)), "\n");
 420                         if(d < db || d < 500)
 421                         {
 422                                 // Brake
 423                                 if(fabs(self.velocity_x)>maxspeed*0.3)
 424                                 {
 425                                         self.movement_x = dir * v_forward * -maxspeed;
 426                                         return;
 427                                 }
 428                                 // Switch to normal mode
 429                                 self.navigation_jetpack_goal = world;
 430                                 self.aistatus &~= AI_STATUS_JETPACK_LANDING;
 431                                 self.aistatus &~= AI_STATUS_JETPACK_FLYING;
 432                                 return;
 433                         }
 434                 }
 435                 else if(checkpvs(self.origin,self.goalcurrent))
 436                 {
 437                         // If I can see the goal switch to landing code
 438                         self.aistatus &~= AI_STATUS_JETPACK_FLYING;
 439                         self.aistatus |= AI_STATUS_JETPACK_LANDING;
 440                         return;
 441                 }
 442
 443                 // Flying
 444                 self.BUTTON_HOOK = TRUE;
 445                 if(self.navigation_jetpack_point_z - PL_MAX_z + PL_MIN_z < self.origin_z)
 446                 {
 447                         self.movement_x = dir * v_forward * maxspeed;
 448                         self.movement_y = dir * v_right * maxspeed;
 449                 }
 450                 return;
 451         }
 452
 453         // Handling of jump pads
 454         if(self.jumppadcount)
 455         {
 456                 // If got stuck on the jump pad try to reach the farthest visible item
 457                 if(self.aistatus & AI_STATUS_OUT_JUMPPAD)
 458                 {
 459                         if(fabs(self.velocity_z)<50)
 460                         {
 461                                 local entity head, newgoal;
 462                                 local float distance, bestdistance;
 463
 464                                 for (head = findchainfloat(bot_pickup, TRUE); head; head = head.chain)
 465                                 {
 466                                         if(head.classname=="worldspawn")
 467                                                 continue;
 468
 469                                         distance = vlen(head.origin - self.origin);
 470                                         if(distance>1000)
 471                                                 continue;
 472
 473                                         traceline(self.origin + self.view_ofs , head.origin, TRUE, world);
 474
 475                                         if(trace_fraction<1)
 476                                                 continue;
 477
 478                                         if(distance>bestdistance)
 479                                         {
 480                                                 newgoal = head;
 481                                                 bestdistance = distance;
 482                                         }
 483                                 }
 484
 485                                 if(newgoal)
 486                                 {
 487                                         self.ignoregoal = self.goalcurrent;
 488                                         self.ignoregoaltime = time + autocvar_bot_ai_ignoregoal_timeout;
 489                                         navigation_clearroute();
 490                                         navigation_routetogoal(newgoal, self.origin);
 491                                         self.aistatus &~= AI_STATUS_OUT_JUMPPAD;
 492                                 }
 493                         }
 494                         else
 495                                 return;
 496                 }
 497                 else
 498                 {
 499                         if(self.velocity_z>0)
 500                         {
 501                                 local float threshold;
 502                                 threshold = maxspeed * 0.2;
 503                                 if(fabs(self.velocity_x) < threshold  &&  fabs(self.velocity_y) < threshold)
 504                                 {
 505                                         dprint("Warning: ", self.netname, " got stuck on a jumppad, trying to get out of it now\n");
 506                                         self.aistatus |= AI_STATUS_OUT_JUMPPAD;
 507                                 }
 508                                 return;
 509                         }
 510
 511                         // Don't chase players while using a jump pad
 512                         if(self.goalcurrent.classname=="player" || self.goalstack01.classname=="player")
 513                                 return;
 514                 }
 515         }
 516         else if(self.aistatus & AI_STATUS_OUT_JUMPPAD)
 517                 self.aistatus &~= AI_STATUS_OUT_JUMPPAD;
 518
 519         // If there is a trigger_hurt right below try to use the jetpack or make a rocketjump
 520         if(skill>6)
 521         if not(self.flags & FL_ONGROUND)
 522         {
 523                 tracebox(self.origin, self.mins, self.maxs, self.origin + '0 0 -65536', MOVE_NOMONSTERS, self);
 524                 if(tracebox_hits_trigger_hurt(self.origin, self.mins, self.maxs, trace_endpos ))
 525                 if(self.items & IT_JETPACK)
 526                 {
 527                         tracebox(self.origin, self.mins, self.maxs, self.origin + '0 0 65536', MOVE_NOMONSTERS, self);
 528                         if(tracebox_hits_trigger_hurt(self.origin, self.mins, self.maxs, trace_endpos + '0 0 1' ))
 529                         {
 530                                 if(self.velocity_z<0)
 531                                 {
 532                                         self.BUTTON_HOOK = TRUE;
 533                                 }
 534                         }
 535                         else
 536                                 self.BUTTON_HOOK = TRUE;
 537
 538                         // If there is no goal try to move forward
 539
 540                         if(self.goalcurrent==world)
 541                                 dir = v_forward;
 542                         else
 543                                 dir = normalize(self.goalcurrent.origin - self.origin);
 544
 545                         local vector xyvelocity = self.velocity; xyvelocity_z = 0;
 546                         local float xyspeed = xyvelocity * dir;
 547
 548                         if(xyspeed < (maxspeed / 2))
 549                         {
 550                                 makevectors(self.v_angle_y * '0 1 0');
 551                                 tracebox(self.origin, self.mins, self.maxs, self.origin + (dir * maxspeed * 3), MOVE_NOMONSTERS, self);
 552                                 if(trace_fraction==1)
 553                                 {
 554                                         self.movement_x = dir * v_forward * maxspeed;
 555                                         self.movement_y = dir * v_right * maxspeed;
 556                                         if (skill < 10)
 557                                                 havocbot_keyboard_movement(self.origin + dir * 100);
 558                                 }
 559                         }
 560
 561                         self.havocbot_blockhead = TRUE;
 562
 563                         return;
 564                 }
 565                 else if(self.health>autocvar_g_balance_rocketlauncher_damage*0.5)
 566                 {
 567                         if(self.velocity_z < 0)
 568                         if(client_hasweapon(self, WEP_ROCKET_LAUNCHER, TRUE, FALSE))
 569                         {
 570                                 self.movement_x = maxspeed;
 571
 572                                 if(self.rocketjumptime)
 573                                 {
 574                                         if(time > self.rocketjumptime)
 575                                         {
 576                                                 self.BUTTON_ATCK2 = TRUE;
 577                                                 self.rocketjumptime = 0;
 578                                         }
 579                                         return;
 580                                 }
 581
 582                                 self.switchweapon = WEP_ROCKET_LAUNCHER;
 583                                 self.v_angle_x = 90;
 584                                 self.BUTTON_ATCK = TRUE;
 585                                 self.rocketjumptime = time + autocvar_g_balance_rocketlauncher_detonatedelay;
 586                                 return;
 587                         }
 588                 }
 589                 else
 590                 {
 591                         // If there is no goal try to move forward
 592                         if(self.goalcurrent==world)
 593                                 self.movement_x = maxspeed;
 594                 }
 595         }
 596
 597         // If we are under water with no goals, swim up
 598         if(self.waterlevel)
 599         if(self.goalcurrent==world)
 600         {
 601                 dir = '0 0 0';
 602                 if(self.waterlevel>WATERLEVEL_SWIMMING)
 603                         dir_z = 1;
 604                 else if(self.velocity_z >= 0 && !(self.waterlevel == WATERLEVEL_WETFEET && self.watertype == CONTENT_WATER))
 605                         self.BUTTON_JUMP = TRUE;
 606                 else
 607                         self.BUTTON_JUMP = FALSE;
 608                 makevectors(self.v_angle_y * '0 1 0');
 609                 self.movement_x = dir * v_forward * maxspeed;
 610                 self.movement_y = dir * v_right * maxspeed;
 611                 self.movement_z = dir * v_up * maxspeed;
 612         }
 613
 614         // if there is nowhere to go, exit
 615         if (self.goalcurrent == world)
 616                 return;
 617
 618         if (self.goalcurrent)
 619                 navigation_poptouchedgoals();
 620
 621         // if ran out of goals try to use an alternative goal or get a new strategy asap
 622         if(self.goalcurrent == world)
 623         {
 624                 self.bot_strategytime = 0;
 625                 return;
 626         }
 627
 628 #ifdef DEBUG_BOT_GOALSTACK
 629         debuggoalstack();
 630 #endif
 631
 632         m1 = self.goalcurrent.origin + self.goalcurrent.mins;
 633         m2 = self.goalcurrent.origin + self.goalcurrent.maxs;
 634         destorg = self.origin;
 635         destorg_x = bound(m1_x, destorg_x, m2_x);
 636         destorg_y = bound(m1_y, destorg_y, m2_y);
 637         destorg_z = bound(m1_z, destorg_z, m2_z);
 638         diff = destorg - self.origin;
 639         //dist = vlen(diff);
 640         dir = normalize(diff);
 641         flatdir = diff;flatdir_z = 0;
 642         flatdir = normalize(flatdir);
 643
 644         //if (self.bot_dodgevector_time < time)
 645         {
 646         //      self.bot_dodgevector_time = time + cvar("bot_ai_dodgeupdateinterval");
 647         //      self.bot_dodgevector_jumpbutton = 1;
 648                 evadeobstacle = '0 0 0';
 649                 evadelava = '0 0 0';
 650
 651                 if (self.waterlevel)
 652                 {
 653                         if(self.waterlevel>WATERLEVEL_SWIMMING)
 654                         {
 655                         //      flatdir_z = 1;
 656                                 self.aistatus |= AI_STATUS_OUT_WATER;
 657                         }
 658                         else
 659                         {
 660                                 if(self.velocity_z >= 0 && !(self.watertype == CONTENT_WATER && self.goalcurrent.origin_z < self.origin_z) &&
 661                                         ( !(self.waterlevel == WATERLEVEL_WETFEET && self.watertype == CONTENT_WATER) || self.aistatus & AI_STATUS_OUT_WATER))
 662                                         self.BUTTON_JUMP = TRUE;
 663                                 else
 664                                         self.BUTTON_JUMP = FALSE;
 665                         }
 666                         dir = normalize(flatdir);
 667                         makevectors(self.v_angle_y * '0 1 0');
 668                 }
 669                 else
 670                 {
 671                         if(self.aistatus & AI_STATUS_OUT_WATER)
 672                                 self.aistatus &~= AI_STATUS_OUT_WATER;
 673
 674                         // jump if going toward an obstacle that doesn't look like stairs we
 675                         // can walk up directly
 676                         tracebox(self.origin, self.mins, self.maxs, self.origin + self.velocity * 0.2, FALSE, self);
 677                         if (trace_fraction < 1)
 678                         if (trace_plane_normal_z < 0.7)
 679                         {
 680                                 s = trace_fraction;
 681                                 tracebox(self.origin + '0 0 16', self.mins, self.maxs, self.origin + self.velocity * 0.2 + '0 0 16', FALSE, self);
 682                                 if (trace_fraction < s + 0.01)
 683                                 if (trace_plane_normal_z < 0.7)
 684                                 {
 685                                         s = trace_fraction;
 686                                         tracebox(self.origin + '0 0 48', self.mins, self.maxs, self.origin + self.velocity * 0.2 + '0 0 48', FALSE, self);
 687                                         if (trace_fraction > s)
 688                                                 self.BUTTON_JUMP = 1;
 689                                 }
 690                         }
 691
 692                         // avoiding dangers and obstacles
 693                         local vector dst_ahead, dst_down;
 694                         makevectors(self.v_angle_y * '0 1 0');
 695                         dst_ahead = self.origin + self.view_ofs + (self.velocity * 0.4) + (v_forward * 32 * 3);
 696                         dst_down = dst_ahead + '0 0 -1500';
 697
 698                         // Look ahead
 699                         traceline(self.origin + self.view_ofs , dst_ahead, TRUE, world);
 700
 701                         // Check head-banging against walls
 702                         if(vlen(self.origin + self.view_ofs - trace_endpos) < 25 && !(self.aistatus & AI_STATUS_OUT_WATER))
 703                         {
 704                                 self.BUTTON_JUMP = TRUE;
 705                                 if(self.facingwalltime && time > self.facingwalltime)
 706                                 {
 707                                         self.ignoregoal = self.goalcurrent;
 708                                         self.ignoregoaltime = time + autocvar_bot_ai_ignoregoal_timeout;
 709                                         self.bot_strategytime = 0;
 710                                         return;
 711                                 }
 712                                 else
 713                                 {
 714                                         self.facingwalltime = time + 0.05;
 715                                 }
 716                         }
 717                         else
 718                         {
 719                                 self.facingwalltime = 0;
 720
 721                                 if(self.ignoregoal != world && time > self.ignoregoaltime)
 722                                 {
 723                                         self.ignoregoal = world;
 724                                         self.ignoregoaltime = 0;
 725                                 }
 726                         }
 727
 728                         // Check for water/slime/lava and dangerous edges
 729                         // (only when the bot is on the ground or jumping intentionally)
 730                         self.aistatus &~= AI_STATUS_DANGER_AHEAD;
 731
 732                         if(trace_fraction == 1 && self.jumppadcount == 0)
 733                         if(self.flags & FL_ONGROUND || self.aistatus & AI_STATUS_RUNNING || self.BUTTON_JUMP == TRUE)
 734                         {
 735                                 // Look downwards
 736                                 traceline(dst_ahead , dst_down, TRUE, world);
 737                         //      te_lightning2(world, self.origin, dst_ahead);   // Draw "ahead" look
 738                         //      te_lightning2(world, dst_ahead, dst_down);              // Draw "downwards" look
 739                                 if(trace_endpos_z < self.origin_z + self.mins_z)
 740                                 {
 741                                         s = pointcontents(trace_endpos + '0 0 1');
 742                                         if (s != CONTENT_SOLID)
 743                                         if (s == CONTENT_LAVA || s == CONTENT_SLIME)
 744                                                 evadelava = normalize(self.velocity) * -1;
 745                                         else if (s == CONTENT_SKY)
 746                                                 evadeobstacle = normalize(self.velocity) * -1;
 747                                         else if (!boxesoverlap(dst_ahead - self.view_ofs + self.mins, dst_ahead - self.view_ofs + self.maxs,
 748                                                                 self.goalcurrent.absmin, self.goalcurrent.absmax))
 749                                         {
 750                                                 // if ain't a safe goal with "holes" (like the jumpad on soylent)
 751                                                 // and there is a trigger_hurt below
 752                                                 if(tracebox_hits_trigger_hurt(dst_ahead, self.mins, self.maxs, trace_endpos))
 753                                                 {
 754                                                         // Remove dangerous dynamic goals from stack
 755                                                         if (self.goalcurrent.classname == "player" || self.goalcurrent.classname == "droppedweapon")
 756                                                                 navigation_poproute();
 757                                                         // try to stop
 758                                                         flatdir = '0 0 0';
 759                                                         evadeobstacle = normalize(self.velocity) * -1;
 760                                                 }
 761                                         }
 762                                 }
 763                         }
 764
 765                         dir = flatdir;
 766                         evadeobstacle_z = 0;
 767                         evadelava_z = 0;
 768                         makevectors(self.v_angle_y * '0 1 0');
 769
 770                         if(evadeobstacle!='0 0 0'||evadelava!='0 0 0')
 771                                 self.aistatus |= AI_STATUS_DANGER_AHEAD;
 772                 }
 773
 774                 dodge = havocbot_dodge();
 775                 dodge = dodge * bound(0,0.5+(skill+self.bot_dodgeskill)*0.1,1);
 776                 evadelava = evadelava * bound(1,3-(skill+self.bot_dodgeskill),3); //Noobs fear lava a lot and take more distance from it
 777                 traceline(self.origin, self.enemy.origin, TRUE, world);
 778                 if(trace_ent.classname == "player")
 779                         dir = dir * bound(0,(skill+self.bot_dodgeskill)/7,1);
 780
 781                 dir = normalize(dir + dodge + evadeobstacle + evadelava);
 782         //      self.bot_dodgevector = dir;
 783         //      self.bot_dodgevector_jumpbutton = self.BUTTON_JUMP;
 784         }
 785
 786         if(time < self.ladder_time)
 787         {
 788                 if(self.goalcurrent.origin_z + self.goalcurrent.mins_z > self.origin_z + self.mins_z)
 789                 {
 790                         if(self.origin_z + self.mins_z  < self.ladder_entity.origin_z + self.ladder_entity.maxs_z)
 791                                 dir_z = 1;
 792                 }
 793                 else
 794                 {
 795                         if(self.origin_z + self.mins_z  > self.ladder_entity.origin_z + self.ladder_entity.mins_z)
 796                                 dir_z = -1;
 797                 }
 798         }
 799
 800         //dir = self.bot_dodgevector;
 801         //if (self.bot_dodgevector_jumpbutton)
 802         //      self.BUTTON_JUMP = 1;
 803         self.movement_x = dir * v_forward * maxspeed;
 804         self.movement_y = dir * v_right * maxspeed;
 805         self.movement_z = dir * v_up * maxspeed;
 806
 807         // Emulate keyboard interface
 808         if (skill < 10)
 809                 havocbot_keyboard_movement(destorg);
 810
 811         // Bunnyhop!
 812 //      if(self.aistatus & AI_STATUS_ROAMING)
 813         if(self.goalcurrent)
 814         if(skill+self.bot_moveskill >= autocvar_bot_ai_bunnyhop_skilloffset)
 815                 havocbot_bunnyhop(dir);
 816
 817         if ((dir * v_up) >= autocvar_sv_jumpvelocity*0.5 && (self.flags & FL_ONGROUND)) self.BUTTON_JUMP=1;
 818         if (((dodge * v_up) > 0) && random()*frametime >= 0.2*bound(0,(10-skill-self.bot_dodgeskill)*0.1,1)) self.BUTTON_JUMP=TRUE;
 819         if (((dodge * v_up) < 0) && random()*frametime >= 0.5*bound(0,(10-skill-self.bot_dodgeskill)*0.1,1)) self.havocbot_ducktime=time+0.3/bound(0.1,skill+self.bot_dodgeskill,10);
 820 };
 821
 822 void havocbot_chooseenemy()
 823 {
 824         local entity head, best, head2;
 825         local float rating, bestrating, i, f;
 826         local vector eye, v;
 827         if (autocvar_bot_nofire || IS_INDEPENDENT_PLAYER(self))
 828         {
 829                 self.enemy = world;
 830                 return;
 831         }
 832         if (self.enemy)
 833         {
 834                 if (!bot_shouldattack(self.enemy))
 835                 {
 836                         // enemy died or something, find a new target
 837                         self.enemy = world;
 838                         self.havocbot_chooseenemy_finished = time;
 839                 }
 840                 else if (self.havocbot_stickenemy)
 841                 {
 842                         // tracking last chosen enemy
 843                         // if enemy is visible
 844                         // and not really really far away
 845                         // and we're not severely injured
 846                         // then keep tracking for a half second into the future
 847                         traceline(self.origin+self.view_ofs, self.enemy.origin+self.enemy.view_ofs*0.5,FALSE,world);
 848                         if (trace_ent == self.enemy || trace_fraction == 1)
 849                         if (vlen(self.enemy.origin - self.origin) < 1000)
 850                         if (self.health > 30)
 851                         {
 852                                 // remain tracking him for a shot while (case he went after a small corner or pilar
 853                                 self.havocbot_chooseenemy_finished = time + autocvar_bot_ai_enemydetectioninterval;
 854                                 return;
 855                         }
 856                         // enemy isn't visible, or is far away, or we're injured severely
 857                         // so stop preferring this enemy
 858                         // (it will still take a half second until a new one is chosen)
 859                         self.havocbot_stickenemy = 0;
 860                 }
 861         }
 862         if (time < self.havocbot_chooseenemy_finished)
 863                 return;
 864         self.havocbot_chooseenemy_finished = time + autocvar_bot_ai_enemydetectioninterval;
 865         eye = self.origin + self.view_ofs;
 866         best = world;
 867         bestrating = 100000000;
 868         head = head2 = findchainfloat(bot_attack, TRUE);
 869
 870         // Search for enemies, if no enemy can be seen directly try to look through transparent objects
 871         for(;;)
 872         {
 873                 while (head)
 874                 {
 875                         v = (head.absmin + head.absmax) * 0.5;
 876                         rating = vlen(v - eye);
 877                         if (rating<autocvar_bot_ai_enemydetectionradius)
 878                         if (bestrating > rating)
 879                         if (bot_shouldattack(head))
 880                         {
 881                                 traceline(eye, v, TRUE, self);
 882                                 if (trace_ent == head || trace_fraction >= 1)
 883                                 {
 884                                         best = head;
 885                                         bestrating = rating;
 886                                 }
 887                         }
 888                         head = head.chain;
 889                 }
 890
 891                 // I want to do a second scan if no enemy was found or I don't have weapons
 892                 // TODO: Perform the scan when using the rifle (requires changes on the rifle code)
 893                 if(best || self.weapons) // || self.weapon == WEP_CAMPINGRIFLE
 894                         break;
 895                 if(i)
 896                         break;
 897
 898                 // Set flags to see through transparent objects
 899                 f = self.dphitcontentsmask;
 900                 self.dphitcontentsmask = DPCONTENTS_OPAQUE;
 901
 902                 head = head2;
 903                 ++i;
 904         }
 905
 906         // Restore hit flags if needed
 907         if(i)
 908                 self.dphitcontentsmask = f;
 909
 910         self.enemy = best;
 911         self.havocbot_stickenemy = TRUE;
 912 };
 913
 914 void havocbot_chooseweapon()
 915 {
 916         local float i;
 917
 918         // ;)
 919         if(g_weaponarena == WEPBIT_TUBA)
 920         {
 921                 self.switchweapon = WEP_TUBA;
 922                 return;
 923         }
 924
 925         // TODO: clean this up by moving it to weapon code
 926         if(self.enemy==world)
 927         {
 928                 // If no weapon was chosen get the first available weapon
 929                 if(self.weapon==0)
 930                 for(i=WEP_LASER + 1; i < WEP_COUNT ; ++i)
 931                 {
 932                         if(client_hasweapon(self, i, TRUE, FALSE))
 933                         {
 934                                 self.switchweapon = i;
 935                                 return;
 936                         }
 937                 }
 938                 return;
 939         }
 940
 941         // Do not change weapon during the next second after a combo
 942         i = time - self.lastcombotime;
 943         if(i < 1)
 944                 return;
 945
 946         // Workaround for rifle reloading (..)
 947         if(self.weapon == WEP_CAMPINGRIFLE)
 948         if(i < autocvar_g_balance_campingrifle_reloadtime + 1)
 949                 return;
 950
 951         local float w;
 952         local float rocket  ; rocket   =-1000;
 953         local float nex     ; nex      =-1000;
 954         local float hagar   ; hagar    =-1000;
 955         local float grenade ; grenade  =-1000;
 956         local float mine    ; mine     =-1000;
 957         local float electro ; electro  =-1000;
 958         local float crylink ; crylink  =-1000;
 959         local float uzi     ; uzi      =-1000;
 960         local float shotgun ; shotgun  =-1000;
 961         local float campingrifle ; campingrifle  =-1000;
 962         local float laser   ; laser    =-1000;
 963         local float minstanex ; minstanex =-1000;
 964         local float bestscore; bestscore = 0;
 965         local float bestweapon; bestweapon=self.switchweapon;
 966         local float distance; distance=bound(10,vlen(self.origin-self.enemy.origin)-200,10000);
 967         local float maxdelaytime=0.5;
 968         local float spreadpenalty=10;
 969
 970         // Should it do a weapon combo?
 971         local float af, ct, combo_time, combo;
 972
 973         af = ATTACK_FINISHED(self);
 974         ct = autocvar_bot_ai_weapon_combo_threshold;
 975
 976         // Bots with no skill will be 4 times more slower than "godlike" bots when doing weapon combos
 977         // Ideally this 4 should be calculated as longest_weapon_refire / bot_ai_weapon_combo_threshold
 978         combo_time = time + ct + (ct * ((-0.3*(skill+self.bot_weaponskill))+3));
 979
 980         combo = FALSE;
 981
 982         if(autocvar_bot_ai_weapon_combo)
 983         if(self.weapon == self.lastfiredweapon)
 984         if(af > combo_time)
 985         {
 986                 combo = TRUE;
 987                 self.lastcombotime = time;
 988         }
 989
 990         distance *= pow(2, self.bot_rangepreference);
 991
 992         // Custom weapon list based on distance to the enemy
 993         if(bot_custom_weapon){
 994
 995                 // Choose weapons for far distance
 996                 if ( distance > bot_distance_far ) {
 997                         for(i=0; i < WEP_COUNT && bot_weapons_far[i] != -1 ; ++i){
 998                                 w = bot_weapons_far[i];
 999                                 if ( client_hasweapon(self, w, TRUE, FALSE) ){
1000                                         if ( self.weapon == w && combo)
1001                                                 continue;
1002                                         self.switchweapon = w;
1003                                         return;
1004                                 }
1005                         }
1006                 }
1007
1008                 // Choose weapons for mid distance
1009                 if ( distance > bot_distance_close) {
1010                         for(i=0; i < WEP_COUNT && bot_weapons_mid[i] != -1 ; ++i){
1011                                 w = bot_weapons_mid[i];
1012                                 if ( client_hasweapon(self, w, TRUE, FALSE) ){
1013                                         if ( self.weapon == w && combo)
1014                                                 continue;
1015                                         self.switchweapon = w;
1016                                         return;
1017                                 }
1018                         }
1019                 }
1020
1021                 // Choose weapons for close distance
1022                 for(i=0; i < WEP_COUNT && bot_weapons_close[i] != -1 ; ++i){
1023                         w = bot_weapons_close[i];
1024                         if ( client_hasweapon(self, w, TRUE, FALSE) ){
1025                                 if ( self.weapon == w && combo)
1026                                         continue;
1027                                 self.switchweapon = w;
1028                                 return;
1029                         }
1030                 }
1031         }
1032 };
1033
1034 void havocbot_aim()
1035 {
1036         local vector selfvel, enemyvel;
1037 //      if(self.flags & FL_INWATER)
1038 //              return;
1039         if (time < self.nextaim)
1040                 return;
1041         self.nextaim = time + 0.1;
1042         selfvel = self.velocity;
1043         if (!self.waterlevel)
1044                 selfvel_z = 0;
1045         if (self.enemy)
1046         {
1047                 enemyvel = self.enemy.velocity;
1048                 if (!self.enemy.waterlevel)
1049                         enemyvel_z = 0;
1050                 lag_additem(time + self.ping, 0, 0, self.enemy, self.origin, selfvel, self.enemy.origin, enemyvel);
1051         }
1052         else
1053                 lag_additem(time + self.ping, 0, 0, world, self.origin, selfvel, self.goalcurrent.origin, '0 0 0');
1054 };
1055
1056 float havocbot_moveto_refresh_route()
1057 {
1058         // Refresh path to goal if necessary
1059         entity wp;
1060         wp = self.havocbot_personal_waypoint;
1061         navigation_goalrating_start();
1062         navigation_routerating(wp, 10000, 10000);
1063         navigation_goalrating_end();
1064         return self.navigation_hasgoals;
1065 }
1066
1067 float havocbot_moveto(vector pos)
1068 {
1069         local entity wp;
1070
1071         if(self.aistatus & AI_STATUS_WAYPOINT_PERSONAL_GOING)
1072         {
1073                 // Step 4: Move to waypoint
1074                 if(self.havocbot_personal_waypoint==world)
1075                 {
1076                         dprint("Error: ", self.netname, " trying to walk to a non existent personal waypoint\n");
1077                         self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_GOING;
1078                         return CMD_STATUS_ERROR;
1079                 }
1080
1081                 if (!bot_strategytoken_taken)
1082                 if(self.havocbot_personal_waypoint_searchtime<time)
1083                 {
1084                         bot_strategytoken_taken = TRUE;
1085                         if(havocbot_moveto_refresh_route())
1086                         {
1087                                 dprint(self.netname, " walking to its personal waypoint (after ", ftos(self.havocbot_personal_waypoint_failcounter), " failed attempts)\n");
1088                                 self.havocbot_personal_waypoint_searchtime = time + 10;
1089                                 self.havocbot_personal_waypoint_failcounter = 0;
1090                         }
1091                         else
1092                         {
1093                                 self.havocbot_personal_waypoint_failcounter += 1;
1094                                 self.havocbot_personal_waypoint_searchtime = time + 2;
1095                                 if(self.havocbot_personal_waypoint_failcounter >= 30)
1096                                 {
1097                                         dprint("Warning: can't walk to the personal waypoint located at ", vtos(self.havocbot_personal_waypoint.origin),"\n");
1098                                         self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_LINKING;
1099                                         remove(self.havocbot_personal_waypoint);
1100                                         return CMD_STATUS_ERROR;
1101                                 }
1102                                 else
1103                                         dprint(self.netname, " can't walk to its personal waypoint (after ", ftos(self.havocbot_personal_waypoint_failcounter), " failed attempts), trying later\n");
1104                         }
1105                 }
1106
1107                 #ifdef DEBUG_BOT_GOALSTACK
1108                         debuggoalstack();
1109                 #endif
1110
1111                 // Heading
1112                 local vector dir = self.goalcurrent.origin - (self.origin + self.view_ofs);
1113                 dir_z = 0;
1114                 bot_aimdir(dir, -1);
1115
1116                 // Go!
1117                 havocbot_movetogoal();
1118
1119                 if(self.aistatus & AI_STATUS_WAYPOINT_PERSONAL_REACHED)
1120                 {
1121                         // Step 5: Waypoint reached
1122                         dprint(self.netname, "'s personal waypoint reached\n");
1123                         remove(self.havocbot_personal_waypoint);
1124                         self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_REACHED;
1125                         return CMD_STATUS_FINISHED;
1126                 }
1127
1128                 return CMD_STATUS_EXECUTING;
1129         }
1130
1131         // Step 2: Linking waypoint
1132         if(self.aistatus & AI_STATUS_WAYPOINT_PERSONAL_LINKING)
1133         {
1134                 // Wait until it is linked
1135                 if(!self.havocbot_personal_waypoint.wplinked)
1136                 {
1137                         dprint(self.netname, " waiting for personal waypoint to be linked\n");
1138                         return CMD_STATUS_EXECUTING;
1139                 }
1140
1141                 self.havocbot_personal_waypoint_searchtime = time; // so we set the route next frame
1142                 self.aistatus &~= AI_STATUS_WAYPOINT_PERSONAL_LINKING;
1143                 self.aistatus |= AI_STATUS_WAYPOINT_PERSONAL_GOING;
1144
1145                 // Step 3: Route to waypoint
1146                 dprint(self.netname, " walking to its personal waypoint\n");
1147
1148                 return CMD_STATUS_EXECUTING;
1149         }
1150
1151         // Step 1: Spawning waypoint
1152         wp = waypoint_spawnpersonal(pos);
1153         if(wp==world)
1154         {
1155                 dprint("Error: Can't spawn personal waypoint at ",vtos(pos),"\n");
1156                 return CMD_STATUS_ERROR;
1157         }
1158
1159         self.havocbot_personal_waypoint = wp;
1160         self.havocbot_personal_waypoint_failcounter = 0;
1161         self.aistatus |= AI_STATUS_WAYPOINT_PERSONAL_LINKING;
1162
1163         // if pos is inside a teleport, then let's mark it as teleport waypoint
1164         entity head;
1165         for(head = world; (head = find(head, classname, "trigger_teleport")); )
1166         {
1167                 if(WarpZoneLib_BoxTouchesBrush(pos, pos, head, world))
1168                 {
1169                         wp.wpflags |= WAYPOINTFLAG_TELEPORT;
1170                         self.lastteleporttime = 0;
1171                 }
1172         }
1173
1174 /*
1175         if(wp.wpflags & WAYPOINTFLAG_TELEPORT)
1176                 print("routing to a teleporter\n");
1177         else
1178                 print("routing to a non-teleporter\n");
1179 */
1180
1181         return CMD_STATUS_EXECUTING;
1182 }
1183
1184 float havocbot_resetgoal()
1185 {
1186         navigation_clearroute();
1187         return CMD_STATUS_FINISHED;
1188 }
1189
1190 void havocbot_setupbot()
1191 {
1192         self.bot_ai = havocbot_ai;
1193         self.cmd_moveto = havocbot_moveto;
1194         self.cmd_resetgoal = havocbot_resetgoal;
1195
1196         havocbot_chooserole();
1197 }
1198
1199 vector havocbot_dodge()
1200 {
1201         // LordHavoc: disabled because this is too expensive
1202         return '0 0 0';
1203         /*
1204         local entity head;
1205         local vector dodge, v, n;
1206         local float danger, bestdanger, vl, d;
1207         dodge = '0 0 0';
1208         bestdanger = -20;
1209         // check for dangerous objects near bot or approaching bot
1210         head = findchainfloat(bot_dodge, TRUE);
1211         while(head)
1212         {
1213                 if (head.owner != self)
1214                 {
1215                         vl = vlen(head.velocity);
1216                         if (vl > autocvar_sv_maxspeed * 0.3)
1217                         {
1218                                 n = normalize(head.velocity);
1219                                 v = self.origin - head.origin;
1220                                 d = v * n;
1221                                 if (d > (0 - head.bot_dodgerating))
1222                                 if (d < (vl * 0.2 + head.bot_dodgerating))
1223                                 {
1224                                         // calculate direction and distance from the flight path, by removing the forward axis
1225                                         v = v - (n * (v * n));
1226                                         danger = head.bot_dodgerating - vlen(v);
1227                                         if (bestdanger < danger)
1228                                         {
1229                                                 bestdanger = danger;
1230                                                 // dodge to the side of the object
1231                                                 dodge = normalize(v);
1232                                         }
1233                                 }
1234                         }
1235                         else
1236                         {
1237                                 danger = head.bot_dodgerating - vlen(head.origin - self.origin);
1238                                 if (bestdanger < danger)
1239                                 {
1240                                         bestdanger = danger;
1241                                         dodge = normalize(self.origin - head.origin);
1242                                 }
1243                         }
1244                 }
1245                 head = head.chain;
1246         }
1247         return dodge;
1248         */
1249 };