qcsrc/server/bot/aim.qc

   1
   2 entity ka_ball;
   3 // traces multiple trajectories to find one that will impact the target
   4 // 'end' vector is the place it aims for,
   5 // returns TRUE only if it hit targ (don't target non-solid entities)
   6
   7 float findtrajectorywithleading(vector org, vector m1, vector m2, entity targ, float shotspeed, float shotspeedupward, float maxtime, float shotdelay, entity ignore)
   8 {
   9         float c, savesolid, shottime;
  10         vector dir, end, v, o;
  11         if (shotspeed < 1)
  12                 return FALSE; // could cause division by zero if calculated
  13         if (targ.solid < SOLID_BBOX) // SOLID_NOT and SOLID_TRIGGER
  14                 return FALSE; // could never hit it
  15         if (!tracetossent)
  16                 tracetossent = spawn();
  17         tracetossent.owner = ignore;
  18         setsize(tracetossent, m1, m2);
  19         savesolid = targ.solid;
  20         targ.solid = SOLID_NOT;
  21         o = (targ.absmin + targ.absmax) * 0.5;
  22         shottime = ((vlen(o - org) / shotspeed) + shotdelay);
  23         v = targ.velocity * shottime + o;
  24         tracebox(o, targ.mins, targ.maxs, v, FALSE, targ);
  25         v = trace_endpos;
  26         end = v + (targ.mins + targ.maxs) * 0.5;
  27         if ((vlen(end - org) / shotspeed + 0.2) > maxtime)
  28         {
  29                 // out of range
  30                 targ.solid = savesolid;
  31                 return FALSE;
  32         }
  33
  34         if (!tracetossfaketarget)
  35                 tracetossfaketarget = spawn();
  36         tracetossfaketarget.solid = savesolid;
  37         tracetossfaketarget.movetype = targ.movetype;
  38         setmodel(tracetossfaketarget, targ.model); // no low precision
  39         tracetossfaketarget.model = targ.model;
  40         tracetossfaketarget.modelindex = targ.modelindex;
  41         setsize(tracetossfaketarget, targ.mins, targ.maxs);
  42         setorigin(tracetossfaketarget, v);
  43
  44         c = 0;
  45         dir = normalize(end - org);
  46         while (c < 10) // 10 traces
  47         {
  48                 setorigin(tracetossent, org); // reset
  49                 tracetossent.velocity = findtrajectory_velocity = normalize(dir) * shotspeed + shotspeedupward * '0 0 1';
  50                 tracetoss(tracetossent, ignore); // love builtin functions...
  51                 if (trace_ent == tracetossfaketarget) // done
  52                 {
  53                         targ.solid = savesolid;
  54
  55                         // make it disappear
  56                         tracetossfaketarget.solid = SOLID_NOT;
  57                         tracetossfaketarget.movetype = MOVETYPE_NONE;
  58                         tracetossfaketarget.model = "";
  59                         tracetossfaketarget.modelindex = 0;
  60                         // relink to remove it from physics considerations
  61                         setorigin(tracetossfaketarget, v);
  62
  63                         return TRUE;
  64                 }
  65                 dir_z = dir_z + 0.1; // aim up a little more
  66                 c = c + 1;
  67         }
  68         targ.solid = savesolid;
  69
  70         // make it disappear
  71         tracetossfaketarget.solid = SOLID_NOT;
  72         tracetossfaketarget.movetype = MOVETYPE_NONE;
  73         tracetossfaketarget.model = "";
  74         tracetossfaketarget.modelindex = 0;
  75         // relink to remove it from physics considerations
  76         setorigin(tracetossfaketarget, v);
  77
  78         // leave a valid one even if it won't reach
  79         findtrajectory_velocity = normalize(end - org) * shotspeed + shotspeedupward * '0 0 1';
  80         return FALSE;
  81 }
  82
  83 void lag_update()
  84 {
  85         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;}
  86         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;}
  87         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;}
  88         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;}
  89         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;}
  90 }
  91
  92 float lag_additem(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
  93 {
  94         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;}
  95         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;}
  96         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;}
  97         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;}
  98         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;}
  99         // no room for it (what is the best thing to do here??)
 100         return FALSE;
 101 }
 102
 103 float bot_shouldattack(entity e)
 104 {
 105         if (e.team == self.team)
 106         {
 107                 if (e == self)
 108                         return FALSE;
 109                 if (teamplay)
 110                 if (e.team != 0)
 111                         return FALSE;
 112         }
 113
 114         if(e.freezetag_frozen)
 115                 return FALSE;
 116
 117         // If neither player has ball then don't attack unless the ball is on the
 118         // ground.
 119         if (g_keepaway)
 120                 if (!e.ballcarried && !self.ballcarried && ka_ball.owner)
 121                         return FALSE;
 122
 123         if(teamplay)
 124         {
 125                 if(e.team==0)
 126                         return FALSE;
 127         }
 128         else if(bot_ignore_bots)
 129                 if(IS_BOT_CLIENT(e))
 130                         return FALSE;
 131
 132         if (!e.takedamage)
 133                 return FALSE;
 134         if (e.deadflag)
 135                 return FALSE;
 136         if (e.BUTTON_CHAT)
 137                 return FALSE;
 138         if(e.flags & FL_NOTARGET)
 139                 return FALSE;
 140
 141         checkentity = e;
 142         if(MUTATOR_CALLHOOK(BotShouldAttack))
 143                 return FALSE;
 144
 145         return TRUE;
 146 }
 147
 148 void bot_lagfunc(float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
 149 {
 150         if(self.flags & FL_INWATER)
 151         {
 152                 self.bot_aimtarg = world;
 153                 return;
 154         }
 155         self.bot_aimtarg = e1;
 156         self.bot_aimlatency = self.ping; // FIXME?  Shouldn't this be in the lag item?
 157         self.bot_aimselforigin = v1;
 158         self.bot_aimselfvelocity = v2;
 159         self.bot_aimtargorigin = v3;
 160         self.bot_aimtargvelocity = v4;
 161         if(skill <= 0)
 162                 self.bot_canfire = (random() < 0.8);
 163         else if(skill <= 1)
 164                 self.bot_canfire = (random() < 0.9);
 165         else if(skill <= 2)
 166                 self.bot_canfire = (random() < 0.95);
 167         else
 168                 self.bot_canfire = 1;
 169 }
 170
 171 float bot_aimdir(vector v, float maxfiredeviation)
 172 {
 173         float dist, delta_t, blend;
 174         vector desiredang, diffang;
 175
 176         //dprint("aim ", self.netname, ": old:", vtos(self.v_angle));
 177         // make sure v_angle is sane first
 178         self.v_angle_y = self.v_angle_y - floor(self.v_angle_y / 360) * 360;
 179         self.v_angle_z = 0;
 180
 181         // get the desired angles to aim at
 182         //dprint(" at:", vtos(v));
 183         v = normalize(v);
 184         //te_lightning2(world, self.origin + self.view_ofs, self.origin + self.view_ofs + v * 200);
 185         if (time >= self.bot_badaimtime)
 186         {
 187                 self.bot_badaimtime = max(self.bot_badaimtime + 0.3, time);
 188                 self.bot_badaimoffset = randomvec() * bound(0, 5 - 0.5 * (skill+self.bot_offsetskill), 5) * autocvar_bot_ai_aimskill_offset;
 189         }
 190         desiredang = vectoangles(v) + self.bot_badaimoffset;
 191         //dprint(" desired:", vtos(desiredang));
 192         if (desiredang_x >= 180)
 193                 desiredang_x = desiredang_x - 360;
 194         desiredang_x = bound(-90, 0 - desiredang_x, 90);
 195         desiredang_z = self.v_angle_z;
 196         //dprint(" / ", vtos(desiredang));
 197
 198         //// pain throws off aim
 199         //if (self.bot_painintensity)
 200         //{
 201         //      // shake from pain
 202         //      desiredang = desiredang + randomvec() * self.bot_painintensity * 0.2;
 203         //}
 204
 205         // calculate turn angles
 206         diffang = (desiredang - self.bot_olddesiredang);
 207         // wrap yaw turn
 208         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 209         if (diffang_y >= 180)
 210                 diffang_y = diffang_y - 360;
 211         self.bot_olddesiredang = desiredang;
 212         //dprint(" diff:", vtos(diffang));
 213
 214         delta_t = time-self.bot_prevaimtime;
 215         self.bot_prevaimtime = time;
 216         // Here we will try to anticipate the comming aiming direction
 217         self.bot_1st_order_aimfilter= self.bot_1st_order_aimfilter
 218                 + (diffang * (1 / delta_t)    - self.bot_1st_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_1st,1);
 219         self.bot_2nd_order_aimfilter= self.bot_2nd_order_aimfilter
 220                 + (self.bot_1st_order_aimfilter - self.bot_2nd_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_2nd,1);
 221         self.bot_3th_order_aimfilter= self.bot_3th_order_aimfilter
 222                 + (self.bot_2nd_order_aimfilter - self.bot_3th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_3th,1);
 223         self.bot_4th_order_aimfilter= self.bot_4th_order_aimfilter
 224                 + (self.bot_3th_order_aimfilter - self.bot_4th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_4th,1);
 225         self.bot_5th_order_aimfilter= self.bot_5th_order_aimfilter
 226                 + (self.bot_4th_order_aimfilter - self.bot_5th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_5th,1);
 227
 228         //blend = (bound(0,skill,10)*0.1)*pow(1-bound(0,skill,10)*0.05,2.5)*5.656854249; //Plot formule before changing !
 229         blend = bound(0,skill+self.bot_aimskill,10)*0.1;
 230         desiredang = desiredang + blend *
 231         (
 232                   self.bot_1st_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_1st
 233                 + self.bot_2nd_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_2nd
 234                 + self.bot_3th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_3th
 235                 + self.bot_4th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_4th
 236                 + self.bot_5th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_5th
 237         );
 238
 239         // calculate turn angles
 240         diffang = desiredang - self.bot_mouseaim;
 241         // wrap yaw turn
 242         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 243         if (diffang_y >= 180)
 244                 diffang_y = diffang_y - 360;
 245         //dprint(" diff:", vtos(diffang));
 246
 247         if (time >= self.bot_aimthinktime)
 248         {
 249                 self.bot_aimthinktime = max(self.bot_aimthinktime + 0.5 - 0.05*(skill+self.bot_thinkskill), time);
 250                 self.bot_mouseaim = self.bot_mouseaim + diffang * (1-random()*0.1*bound(1,10-(skill+self.bot_thinkskill),10));
 251         }
 252
 253         //self.v_angle = self.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 254
 255         diffang = self.bot_mouseaim - desiredang;
 256         // wrap yaw turn
 257         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 258         if (diffang_y >= 180)
 259                 diffang_y = diffang_y - 360;
 260         desiredang = desiredang + diffang * bound(0,autocvar_bot_ai_aimskill_think,1);
 261
 262         // calculate turn angles
 263         diffang = desiredang - self.v_angle;
 264         // wrap yaw turn
 265         diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 266         if (diffang_y >= 180)
 267                 diffang_y = diffang_y - 360;
 268         //dprint(" diff:", vtos(diffang));
 269
 270         // jitter tracking
 271         dist = vlen(diffang);
 272         //diffang = diffang + randomvec() * (dist * 0.05 * (3.5 - bound(0, skill, 3)));
 273
 274         // turn
 275         float r, fixedrate, blendrate;
 276         fixedrate = autocvar_bot_ai_aimskill_fixedrate / bound(1,dist,1000);
 277         blendrate = autocvar_bot_ai_aimskill_blendrate;
 278         r = max(fixedrate, blendrate);
 279         //self.v_angle = self.v_angle + diffang * bound(frametime, r * frametime * (2+skill*skill*0.05-random()*0.05*(10-skill)), 1);
 280         self.v_angle = self.v_angle + diffang * bound(delta_t, r * delta_t * (2+pow(skill+self.bot_mouseskill,3)*0.005-random()), 1);
 281         self.v_angle = self.v_angle * bound(0,autocvar_bot_ai_aimskill_mouse,1) + desiredang * bound(0,(1-autocvar_bot_ai_aimskill_mouse),1);
 282         //self.v_angle = self.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 283         //self.v_angle = self.v_angle + diffang * (1/ blendrate);
 284         self.v_angle_z = 0;
 285         self.v_angle_y = self.v_angle_y - floor(self.v_angle_y / 360) * 360;
 286         //dprint(" turn:", vtos(self.v_angle));
 287
 288         makevectors(self.v_angle);
 289         shotorg = self.origin + self.view_ofs;
 290         shotdir = v_forward;
 291
 292         //dprint(" dir:", vtos(v_forward));
 293         //te_lightning2(world, shotorg, shotorg + shotdir * 100);
 294
 295         // calculate turn angles again
 296         //diffang = desiredang - self.v_angle;
 297         //diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 298         //if (diffang_y >= 180)
 299         //      diffang_y = diffang_y - 360;
 300
 301         //dprint("e ", vtos(diffang), " < ", ftos(maxfiredeviation), "\n");
 302
 303         // decide whether to fire this time
 304         // note the maxfiredeviation is in degrees so this has to convert to radians first
 305         //if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
 306         if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
 307         if (vlen(trace_endpos-shotorg) < 500+500*bound(0, skill+self.bot_aggresskill, 10) || random()*random()>bound(0,(skill+self.bot_aggresskill)*0.05,1))
 308                 self.bot_firetimer = time + bound(0.1, 0.5-(skill+self.bot_aggresskill)*0.05, 0.5);
 309         //traceline(shotorg,shotorg+shotdir*1000,FALSE,world);
 310         //dprint(ftos(maxfiredeviation),"\n");
 311         //dprint(" diff:", vtos(diffang), "\n");
 312
 313         return self.bot_canfire && (time < self.bot_firetimer);
 314 }
 315
 316 vector bot_shotlead(vector targorigin, vector targvelocity, float shotspeed, float shotdelay)
 317 {
 318         // Try to add code here that predicts gravity effect here, no clue HOW to though ... well not yet atleast...
 319         return targorigin + targvelocity * (shotdelay + vlen(targorigin - shotorg) / shotspeed);
 320 }
 321
 322 float bot_aim(float shotspeed, float shotspeedupward, float maxshottime, float applygravity)
 323 {
 324         float f, r, hf, distanceratio;
 325         vector v;
 326         /*
 327         eprint(self);
 328         dprint("bot_aim(", ftos(shotspeed));
 329         dprint(", ", ftos(shotspeedupward));
 330         dprint(", ", ftos(maxshottime));
 331         dprint(", ", ftos(applygravity));
 332         dprint(");\n");
 333         */
 334
 335         hf = self.dphitcontentsmask;
 336         self.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_CORPSE;
 337
 338         shotspeed *= g_weaponspeedfactor;
 339         shotspeedupward *= g_weaponspeedfactor;
 340         if (!shotspeed)
 341         {
 342                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " shotspeed is zero!\n");
 343                 shotspeed = 1000000;
 344         }
 345         if (!maxshottime)
 346         {
 347                 dprint("bot_aim: WARNING: weapon ", W_Name(self.weapon), " maxshottime is zero!\n");
 348                 maxshottime = 1;
 349         }
 350         makevectors(self.v_angle);
 351         shotorg = self.origin + self.view_ofs;
 352         shotdir = v_forward;
 353         v = bot_shotlead(self.bot_aimtargorigin, self.bot_aimtargvelocity, shotspeed, self.bot_aimlatency);
 354         distanceratio = sqrt(bound(0,skill,10000))*0.3*(vlen(v-shotorg)-100)/autocvar_bot_ai_aimskill_firetolerance_distdegrees;
 355         distanceratio = bound(0,distanceratio,1);
 356         r =  (autocvar_bot_ai_aimskill_firetolerance_maxdegrees-autocvar_bot_ai_aimskill_firetolerance_mindegrees)
 357                 * (1-distanceratio) + autocvar_bot_ai_aimskill_firetolerance_mindegrees;
 358         if (applygravity && self.bot_aimtarg)
 359         {
 360                 if (!findtrajectorywithleading(shotorg, '0 0 0', '0 0 0', self.bot_aimtarg, shotspeed, shotspeedupward, maxshottime, 0, self))
 361                 {
 362                         self.dphitcontentsmask = hf;
 363                         return FALSE;
 364                 }
 365
 366                 f = bot_aimdir(findtrajectory_velocity - shotspeedupward * '0 0 1', r);
 367         }
 368         else
 369         {
 370                 f = bot_aimdir(v - shotorg, r);
 371                 //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");
 372                 //traceline(shotorg, shotorg + shotdir * 10000, FALSE, self);
 373                 //if (trace_ent.takedamage)
 374                 //if (trace_fraction < 1)
 375                 //if (!bot_shouldattack(trace_ent))
 376                 //      return FALSE;
 377                 traceline(shotorg, self.bot_aimtargorigin, FALSE, self);
 378                 if (trace_fraction < 1)
 379                 if (trace_ent != self.enemy)
 380                 if (!bot_shouldattack(trace_ent))
 381                 {
 382                         self.dphitcontentsmask = hf;
 383                         return FALSE;
 384                 }
 385         }
 386
 387         //if (r > maxshottime * shotspeed)
 388         //      return FALSE;
 389         self.dphitcontentsmask = hf;
 390         return TRUE;
 391 }