qcsrc/server/bot/default/aim.qc

   1 #include "aim.qh"
   2
   3 #include <server/defs.qh>
   4
   5 #include "cvars.qh"
   6
   7 #include "bot.qh"
   8
   9 #include <common/physics/player.qh>
  10 #include <common/state.qh>
  11
  12 #include "../../weapons/weaponsystem.qh"
  13
  14 #include <server/mutators/_mod.qh>
  15
  16 // traces multiple trajectories to find one that will impact the target
  17 // 'end' vector is the place it aims for,
  18 // returns true only if it hit targ (don't target non-solid entities)
  19
  20 float findtrajectorywithleading(vector org, vector m1, vector m2, entity targ, float shotspeed, float shotspeedupward, float maxtime, float shotdelay, entity ignore)
  21 {
  22         float c, savesolid, shottime;
  23         vector dir, end, v, o;
  24         if (shotspeed < 1)
  25                 return false; // could cause division by zero if calculated
  26         if (targ.solid < SOLID_BBOX) // SOLID_NOT and SOLID_TRIGGER
  27                 return false; // could never hit it
  28         if (!tracetossent)
  29                 tracetossent = new(tracetossent);
  30         tracetossent.owner = ignore;
  31         setsize(tracetossent, m1, m2);
  32         savesolid = targ.solid;
  33         targ.solid = SOLID_NOT;
  34         o = (targ.absmin + targ.absmax) * 0.5;
  35         shottime = ((vlen(o - org) / shotspeed) + shotdelay);
  36         v = targ.velocity * shottime + o;
  37         tracebox(o, targ.mins, targ.maxs, v, false, targ);
  38         v = trace_endpos;
  39         end = v + (targ.mins + targ.maxs) * 0.5;
  40         if ((vlen(end - org) / shotspeed + 0.2) > maxtime)
  41         {
  42                 // out of range
  43                 targ.solid = savesolid;
  44                 return false;
  45         }
  46
  47         if (!tracetossfaketarget)
  48                 tracetossfaketarget = new(tracetossfaketarget);
  49         tracetossfaketarget.solid = savesolid;
  50         set_movetype(tracetossfaketarget, targ.move_movetype);
  51         _setmodel(tracetossfaketarget, targ.model); // no low precision
  52         tracetossfaketarget.model = targ.model;
  53         tracetossfaketarget.modelindex = targ.modelindex;
  54         setsize(tracetossfaketarget, targ.mins, targ.maxs);
  55         setorigin(tracetossfaketarget, v);
  56
  57         c = 0;
  58         dir = normalize(end - org);
  59         while (c < 10) // 10 traces
  60         {
  61                 setorigin(tracetossent, org); // reset
  62                 tracetossent.velocity = findtrajectory_velocity = normalize(dir) * shotspeed + shotspeedupward * '0 0 1';
  63                 tracetoss(tracetossent, ignore); // love builtin functions...
  64                 if (trace_ent == tracetossfaketarget) // done
  65                 {
  66                         targ.solid = savesolid;
  67
  68                         // make it disappear
  69                         tracetossfaketarget.solid = SOLID_NOT;
  70                         set_movetype(tracetossfaketarget, MOVETYPE_NONE);
  71                         tracetossfaketarget.model = "";
  72                         tracetossfaketarget.modelindex = 0;
  73                         // relink to remove it from physics considerations
  74                         setorigin(tracetossfaketarget, v);
  75
  76                         return true;
  77                 }
  78                 dir.z = dir.z + 0.1; // aim up a little more
  79                 c = c + 1;
  80         }
  81         targ.solid = savesolid;
  82
  83         // make it disappear
  84         tracetossfaketarget.solid = SOLID_NOT;
  85         set_movetype(tracetossfaketarget, MOVETYPE_NONE);
  86         tracetossfaketarget.model = "";
  87         tracetossfaketarget.modelindex = 0;
  88         // relink to remove it from physics considerations
  89         setorigin(tracetossfaketarget, v);
  90
  91         // leave a valid one even if it won't reach
  92         findtrajectory_velocity = normalize(end - org) * shotspeed + shotspeedupward * '0 0 1';
  93         return false;
  94 }
  95
  96 void lag_update(entity this)
  97 {
  98         if (this.lag1_time && time > this.lag1_time) { this.lag_func(this, this.lag1_time, this.lag1_float1, this.lag1_float2, this.lag1_entity1, this.lag1_vec1, this.lag1_vec2, this.lag1_vec3, this.lag1_vec4); this.lag1_time = 0; }
  99         if (this.lag2_time && time > this.lag2_time) { this.lag_func(this, this.lag2_time, this.lag2_float1, this.lag2_float2, this.lag2_entity1, this.lag2_vec1, this.lag2_vec2, this.lag2_vec3, this.lag2_vec4); this.lag2_time = 0; }
 100         if (this.lag3_time && time > this.lag3_time) { this.lag_func(this, this.lag3_time, this.lag3_float1, this.lag3_float2, this.lag3_entity1, this.lag3_vec1, this.lag3_vec2, this.lag3_vec3, this.lag3_vec4); this.lag3_time = 0; }
 101         if (this.lag4_time && time > this.lag4_time) { this.lag_func(this, this.lag4_time, this.lag4_float1, this.lag4_float2, this.lag4_entity1, this.lag4_vec1, this.lag4_vec2, this.lag4_vec3, this.lag4_vec4); this.lag4_time = 0; }
 102         if (this.lag5_time && time > this.lag5_time) { this.lag_func(this, this.lag5_time, this.lag5_float1, this.lag5_float2, this.lag5_entity1, this.lag5_vec1, this.lag5_vec2, this.lag5_vec3, this.lag5_vec4); this.lag5_time = 0; }
 103 }
 104
 105 float lag_additem(entity this, float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
 106 {
 107         if (this.lag1_time == 0) {this.lag1_time = t;this.lag1_float1 = f1;this.lag1_float2 = f2;this.lag1_entity1 = e1;this.lag1_vec1 = v1;this.lag1_vec2 = v2;this.lag1_vec3 = v3;this.lag1_vec4 = v4;return true;}
 108         if (this.lag2_time == 0) {this.lag2_time = t;this.lag2_float1 = f1;this.lag2_float2 = f2;this.lag2_entity1 = e1;this.lag2_vec1 = v1;this.lag2_vec2 = v2;this.lag2_vec3 = v3;this.lag2_vec4 = v4;return true;}
 109         if (this.lag3_time == 0) {this.lag3_time = t;this.lag3_float1 = f1;this.lag3_float2 = f2;this.lag3_entity1 = e1;this.lag3_vec1 = v1;this.lag3_vec2 = v2;this.lag3_vec3 = v3;this.lag3_vec4 = v4;return true;}
 110         if (this.lag4_time == 0) {this.lag4_time = t;this.lag4_float1 = f1;this.lag4_float2 = f2;this.lag4_entity1 = e1;this.lag4_vec1 = v1;this.lag4_vec2 = v2;this.lag4_vec3 = v3;this.lag4_vec4 = v4;return true;}
 111         if (this.lag5_time == 0) {this.lag5_time = t;this.lag5_float1 = f1;this.lag5_float2 = f2;this.lag5_entity1 = e1;this.lag5_vec1 = v1;this.lag5_vec2 = v2;this.lag5_vec3 = v3;this.lag5_vec4 = v4;return true;}
 112         // no room for it (what is the best thing to do here??)
 113         return false;
 114 }
 115
 116 bool bot_shouldattack(entity this, entity targ)
 117 {
 118         if (targ.team == this.team)
 119         {
 120                 if (targ == this)
 121                         return false;
 122                 if (teamplay)
 123                 if (targ.team != 0)
 124                         return false;
 125         }
 126
 127         if(STAT(FROZEN, targ))
 128                 return false;
 129
 130         if(teamplay)
 131         {
 132                 if(targ.team==0)
 133                         return false;
 134         }
 135         else if (autocvar_bot_ignore_bots && IS_BOT_CLIENT(targ))
 136                 return false;
 137
 138         if (!targ.takedamage)
 139                 return false;
 140         if (IS_DEAD(targ))
 141                 return false;
 142         if (PHYS_INPUT_BUTTON_CHAT(targ) && !autocvar_bot_typefrag)
 143                 return false;
 144         if(targ.flags & FL_NOTARGET)
 145                 return false;
 146         if(targ.alpha <= 0.1 && targ.alpha != 0)
 147                 return false; // invisible via alpha
 148
 149         if(MUTATOR_CALLHOOK(BotShouldAttack, this, targ))
 150                 return false;
 151
 152         return true;
 153 }
 154
 155 void bot_lagfunc(entity this, float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
 156 {
 157         this.bot_aimtarg = e1;
 158         this.bot_aimlatency = CS(this).ping; // FIXME?  Shouldn't this be in the lag item?
 159         //this.bot_aimorigin = v1;
 160         //this.bot_aimvelocity = v2;
 161         this.bot_aimtargorigin = v3;
 162         this.bot_aimtargvelocity = v4;
 163         if(skill <= 0)
 164                 this.bot_canfire = (random() < 0.8);
 165         else if(skill <= 1)
 166                 this.bot_canfire = (random() < 0.9);
 167         else if(skill <= 2)
 168                 this.bot_canfire = (random() < 0.95);
 169         else
 170                 this.bot_canfire = 1;
 171 }
 172
 173 void bot_aim_reset(entity this)
 174 {
 175         this.bot_aimdir_executed = true;
 176         this.bot_badaimtime = 0;
 177         this.bot_aimthinktime = time;
 178         this.bot_prevaimtime = time;
 179         this.bot_mouseaim = this.v_angle;
 180         this.bot_olddesiredang = this.v_angle;
 181         this.bot_1st_order_aimfilter = '0 0 0';
 182         this.bot_2nd_order_aimfilter = '0 0 0';
 183         this.bot_3th_order_aimfilter = '0 0 0';
 184         this.bot_4th_order_aimfilter = '0 0 0';
 185         this.bot_5th_order_aimfilter = '0 0 0';
 186         this.bot_firetimer = 0;
 187 }
 188
 189 void bot_aimdir(entity this, vector v, float maxfiredeviation)
 190 {
 191         float dist, delta_t, blend;
 192         vector desiredang, diffang;
 193
 194         this.bot_aimdir_executed = true;
 195
 196         //dprint("aim ", this.netname, ": old:", vtos(this.v_angle));
 197         // make sure v_angle is sane first
 198         this.v_angle_y = this.v_angle.y - floor(this.v_angle.y / 360) * 360;
 199         this.v_angle_z = 0;
 200
 201         // invalid aim dir (can happen when bot overlaps target)
 202         if(!v) return;
 203
 204         // get the desired angles to aim at
 205         //dprint(" at:", vtos(v));
 206         v = normalize(v);
 207         //te_lightning2(NULL, this.origin + this.view_ofs, this.origin + this.view_ofs + v * 200);
 208         if (time >= this.bot_badaimtime)
 209         {
 210                 this.bot_badaimtime = max(this.bot_badaimtime + 0.3, time);
 211                 this.bot_badaimoffset = randomvec() * bound(0, 5 - 0.5 * (skill+this.bot_offsetskill), 5) * autocvar_bot_ai_aimskill_offset;
 212         }
 213         desiredang = vectoangles(v) + this.bot_badaimoffset;
 214         //dprint(" desired:", vtos(desiredang));
 215         if (desiredang.x >= 180)
 216                 desiredang.x = desiredang.x - 360;
 217         desiredang.x = bound(-90, 0 - desiredang.x, 90);
 218         desiredang.z = this.v_angle.z;
 219         //dprint(" / ", vtos(desiredang));
 220
 221         //// pain throws off aim
 222         //if (this.bot_painintensity)
 223         //{
 224         //      // shake from pain
 225         //      desiredang = desiredang + randomvec() * this.bot_painintensity * 0.2;
 226         //}
 227
 228         // calculate turn angles
 229         diffang = (desiredang - this.bot_olddesiredang);
 230         // wrap yaw turn
 231         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 232         if (diffang.y >= 180)
 233                 diffang.y = diffang.y - 360;
 234         this.bot_olddesiredang = desiredang;
 235         //dprint(" diff:", vtos(diffang));
 236
 237         delta_t = time-this.bot_prevaimtime;
 238         this.bot_prevaimtime = time;
 239         // Here we will try to anticipate the comming aiming direction
 240         this.bot_1st_order_aimfilter= this.bot_1st_order_aimfilter
 241                 + (diffang * (1 / delta_t)    - this.bot_1st_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_1st,1);
 242         this.bot_2nd_order_aimfilter= this.bot_2nd_order_aimfilter
 243                 + (this.bot_1st_order_aimfilter - this.bot_2nd_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_2nd,1);
 244         this.bot_3th_order_aimfilter= this.bot_3th_order_aimfilter
 245                 + (this.bot_2nd_order_aimfilter - this.bot_3th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_3th,1);
 246         this.bot_4th_order_aimfilter= this.bot_4th_order_aimfilter
 247                 + (this.bot_3th_order_aimfilter - this.bot_4th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_4th,1);
 248         this.bot_5th_order_aimfilter= this.bot_5th_order_aimfilter
 249                 + (this.bot_4th_order_aimfilter - this.bot_5th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_5th,1);
 250
 251         //blend = (bound(0,skill,10)*0.1)*((1-bound(0,skill,10)*0.05) ** 2.5)*5.656854249; //Plot formule before changing !
 252         blend = bound(0,skill+this.bot_aimskill,10)*0.1;
 253         desiredang = desiredang + blend *
 254         (
 255                   this.bot_1st_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_1st
 256                 + this.bot_2nd_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_2nd
 257                 + this.bot_3th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_3th
 258                 + this.bot_4th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_4th
 259                 + this.bot_5th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_5th
 260         );
 261         desiredang.x = bound(-90, desiredang.x, 90);
 262
 263         // calculate turn angles
 264         diffang = desiredang - this.bot_mouseaim;
 265         // wrap yaw turn
 266         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 267         if (diffang.y >= 180)
 268                 diffang.y = diffang.y - 360;
 269         //dprint(" diff:", vtos(diffang));
 270
 271         if (time >= this.bot_aimthinktime)
 272         {
 273                 this.bot_aimthinktime = max(this.bot_aimthinktime + 0.5 - 0.05*(skill+this.bot_thinkskill), time);
 274                 this.bot_mouseaim = this.bot_mouseaim + diffang * (1-random()*0.1*bound(1,10-(skill+this.bot_thinkskill),10));
 275         }
 276
 277         //this.v_angle = this.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 278
 279         diffang = this.bot_mouseaim - desiredang;
 280         // wrap yaw turn
 281         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 282         if (diffang.y >= 180)
 283                 diffang.y = diffang.y - 360;
 284         desiredang = desiredang + diffang * bound(0,autocvar_bot_ai_aimskill_think,1);
 285
 286         // calculate turn angles
 287         diffang = desiredang - this.v_angle;
 288         // wrap yaw turn
 289         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 290         if (diffang.y >= 180)
 291                 diffang.y = diffang.y - 360;
 292         //dprint(" diff:", vtos(diffang));
 293
 294         // jitter tracking
 295         dist = vlen(diffang);
 296         //diffang = diffang + randomvec() * (dist * 0.05 * (3.5 - bound(0, skill, 3)));
 297
 298         // turn
 299         float r, fixedrate, blendrate;
 300         fixedrate = autocvar_bot_ai_aimskill_fixedrate / bound(1,dist,1000);
 301         blendrate = autocvar_bot_ai_aimskill_blendrate;
 302         r = max(fixedrate, blendrate);
 303         //this.v_angle = this.v_angle + diffang * bound(frametime, r * frametime * (2+skill*skill*0.05-random()*0.05*(10-skill)), 1);
 304         this.v_angle = this.v_angle + diffang * bound(delta_t, r * delta_t * (2 + ((skill + this.bot_mouseskill) ** 3) * 0.005 - random()), 1);
 305         this.v_angle = this.v_angle * bound(0,autocvar_bot_ai_aimskill_mouse,1) + desiredang * bound(0,(1-autocvar_bot_ai_aimskill_mouse),1);
 306         //this.v_angle = this.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 307         //this.v_angle = this.v_angle + diffang * (1/ blendrate);
 308         this.v_angle_z = 0;
 309         this.v_angle_y = this.v_angle.y - floor(this.v_angle.y / 360) * 360;
 310         //dprint(" turn:", vtos(this.v_angle));
 311
 312         makevectors(this.v_angle);
 313         shotorg = this.origin + this.view_ofs;
 314         shotdir = v_forward;
 315
 316         //dprint(" dir:", vtos(v_forward));
 317         //te_lightning2(NULL, shotorg, shotorg + shotdir * 100);
 318
 319         // calculate turn angles again
 320         //diffang = desiredang - this.v_angle;
 321         //diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 322         //if (diffang_y >= 180)
 323         //      diffang_y = diffang_y - 360;
 324
 325         //dprint("e ", vtos(diffang), " < ", ftos(maxfiredeviation), "\n");
 326
 327         // decide whether to fire this time
 328         if (maxfiredeviation != 0 && v * shotdir > cos(maxfiredeviation * DEG2RAD))
 329         {
 330                 traceline(shotorg, shotorg + shotdir * 1000, false, NULL);
 331                 if (vdist(trace_endpos - shotorg, <, 500 + 500 * bound(0, skill + this.bot_aggresskill, 10))
 332                         || random() * random() > bound(0, (skill + this.bot_aggresskill) * 0.05, 1))
 333                 {
 334                         this.bot_firetimer = time + bound(0.1, 0.5 - (skill + this.bot_aggresskill) * 0.05, 0.5);
 335                 }
 336         }
 337         //dprint(ftos(maxfiredeviation),"\n");
 338         //dprint(" diff:", vtos(diffang), "\n");
 339
 340         //return this.bot_canfire && (time < this.bot_firetimer);
 341 }
 342
 343 vector bot_shotlead(vector targorigin, vector targvelocity, float shotspeed, float shotdelay)
 344 {
 345         // Try to add code here that predicts gravity effect here, no clue HOW to though ... well not yet atleast...
 346         return targorigin + targvelocity * (shotdelay + vlen(targorigin - shotorg) / shotspeed);
 347 }
 348
 349 bool bot_aim(entity this, .entity weaponentity, float shotspeed, float shotspeedupward, float maxshottime, bool applygravity)
 350 {
 351         float r, hf, distanceratio;
 352         vector v;
 353         hf = this.dphitcontentsmask;
 354         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_CORPSE;
 355
 356         float speed_factor = W_WeaponSpeedFactor(this);
 357         shotspeed *= speed_factor;
 358         shotspeedupward *= speed_factor;
 359         if (!shotspeed)
 360         {
 361                 LOG_TRACE("bot_aim: WARNING: weapon ", this.(weaponentity).m_weapon.m_name, " shotspeed is zero!");
 362                 shotspeed = 1000000;
 363         }
 364         if (!maxshottime)
 365         {
 366                 LOG_TRACE("bot_aim: WARNING: weapon ", this.(weaponentity).m_weapon.m_name, " maxshottime is zero!");
 367                 maxshottime = 1;
 368         }
 369         makevectors(this.v_angle);
 370         shotorg = this.origin + this.view_ofs;
 371         shotdir = v_forward;
 372         v = bot_shotlead(this.bot_aimtargorigin, this.bot_aimtargvelocity, shotspeed, this.bot_aimlatency);
 373         distanceratio = sqrt(bound(0,skill,10000))*0.3*(vlen(v-shotorg)-100)/autocvar_bot_ai_aimskill_firetolerance_distdegrees;
 374         distanceratio = bound(0,distanceratio,1);
 375         r =  (autocvar_bot_ai_aimskill_firetolerance_maxdegrees-autocvar_bot_ai_aimskill_firetolerance_mindegrees)
 376                 * (1-distanceratio) + autocvar_bot_ai_aimskill_firetolerance_mindegrees;
 377         if (applygravity && this.bot_aimtarg)
 378         {
 379                 if (!findtrajectorywithleading(shotorg, '0 0 0', '0 0 0', this.bot_aimtarg, shotspeed, shotspeedupward, maxshottime, 0, this))
 380                 {
 381                         this.dphitcontentsmask = hf;
 382                         return false;
 383                 }
 384
 385                 bot_aimdir(this, findtrajectory_velocity - shotspeedupward * '0 0 1', r);
 386         }
 387         else
 388         {
 389                 bot_aimdir(this, v - shotorg, r);
 390                 //dprint("AIM: ");dprint(vtos(this.bot_aimtargorigin));dprint(" + ");dprint(vtos(this.bot_aimtargvelocity));dprint(" * ");dprint(ftos(this.bot_aimlatency + vlen(this.bot_aimtargorigin - shotorg) / shotspeed));dprint(" = ");dprint(vtos(v));dprint(" : aimdir = ");dprint(vtos(normalize(v - shotorg)));dprint(" : ");dprint(vtos(shotdir));dprint("\n");
 391                 //traceline(shotorg, shotorg + shotdir * 10000, false, this);
 392                 //if (trace_ent.takedamage)
 393                 //if (trace_fraction < 1)
 394                 //if (!bot_shouldattack(this, trace_ent))
 395                 //      return false;
 396                 traceline(shotorg, this.bot_aimtargorigin, false, this);
 397                 if (trace_fraction < 1)
 398                 if (trace_ent != this.enemy)
 399                 if (!bot_shouldattack(this, trace_ent))
 400                 {
 401                         this.dphitcontentsmask = hf;
 402                         return false;
 403                 }
 404         }
 405
 406         if (time > this.bot_firetimer)
 407         {
 408                 this.dphitcontentsmask = hf;
 409                 return false;
 410         }
 411
 412         //if (r > maxshottime * shotspeed)
 413         //      return false;
 414         this.dphitcontentsmask = hf;
 415         return true;
 416 }