qcsrc/server/bot/default/aim.qc

   1 #include "aim.qh"
   2
   3 #include "cvars.qh"
   4
   5 #include "bot.qh"
   6
   7 #include <common/physics/player.qh>
   8 #include <common/state.qh>
   9
  10 #include "../../weapons/weaponsystem.qh"
  11
  12 #include "../../mutators/_mod.qh"
  13
  14 // traces multiple trajectories to find one that will impact the target
  15 // 'end' vector is the place it aims for,
  16 // returns true only if it hit targ (don't target non-solid entities)
  17
  18 float findtrajectorywithleading(vector org, vector m1, vector m2, entity targ, float shotspeed, float shotspeedupward, float maxtime, float shotdelay, entity ignore)
  19 {
  20         float c, savesolid, shottime;
  21         vector dir, end, v, o;
  22         if (shotspeed < 1)
  23                 return false; // could cause division by zero if calculated
  24         if (targ.solid < SOLID_BBOX) // SOLID_NOT and SOLID_TRIGGER
  25                 return false; // could never hit it
  26         if (!tracetossent)
  27                 tracetossent = new(tracetossent);
  28         tracetossent.owner = ignore;
  29         setsize(tracetossent, m1, m2);
  30         savesolid = targ.solid;
  31         targ.solid = SOLID_NOT;
  32         o = (targ.absmin + targ.absmax) * 0.5;
  33         shottime = ((vlen(o - org) / shotspeed) + shotdelay);
  34         v = targ.velocity * shottime + o;
  35         tracebox(o, targ.mins, targ.maxs, v, false, targ);
  36         v = trace_endpos;
  37         end = v + (targ.mins + targ.maxs) * 0.5;
  38         if ((vlen(end - org) / shotspeed + 0.2) > maxtime)
  39         {
  40                 // out of range
  41                 targ.solid = savesolid;
  42                 return false;
  43         }
  44
  45         if (!tracetossfaketarget)
  46                 tracetossfaketarget = new(tracetossfaketarget);
  47         tracetossfaketarget.solid = savesolid;
  48         set_movetype(tracetossfaketarget, targ.move_movetype);
  49         _setmodel(tracetossfaketarget, targ.model); // no low precision
  50         tracetossfaketarget.model = targ.model;
  51         tracetossfaketarget.modelindex = targ.modelindex;
  52         setsize(tracetossfaketarget, targ.mins, targ.maxs);
  53         setorigin(tracetossfaketarget, v);
  54
  55         c = 0;
  56         dir = normalize(end - org);
  57         while (c < 10) // 10 traces
  58         {
  59                 setorigin(tracetossent, org); // reset
  60                 tracetossent.velocity = findtrajectory_velocity = normalize(dir) * shotspeed + shotspeedupward * '0 0 1';
  61                 tracetoss(tracetossent, ignore); // love builtin functions...
  62                 if (trace_ent == tracetossfaketarget) // done
  63                 {
  64                         targ.solid = savesolid;
  65
  66                         // make it disappear
  67                         tracetossfaketarget.solid = SOLID_NOT;
  68                         set_movetype(tracetossfaketarget, MOVETYPE_NONE);
  69                         tracetossfaketarget.model = "";
  70                         tracetossfaketarget.modelindex = 0;
  71                         // relink to remove it from physics considerations
  72                         setorigin(tracetossfaketarget, v);
  73
  74                         return true;
  75                 }
  76                 dir.z = dir.z + 0.1; // aim up a little more
  77                 c = c + 1;
  78         }
  79         targ.solid = savesolid;
  80
  81         // make it disappear
  82         tracetossfaketarget.solid = SOLID_NOT;
  83         set_movetype(tracetossfaketarget, MOVETYPE_NONE);
  84         tracetossfaketarget.model = "";
  85         tracetossfaketarget.modelindex = 0;
  86         // relink to remove it from physics considerations
  87         setorigin(tracetossfaketarget, v);
  88
  89         // leave a valid one even if it won't reach
  90         findtrajectory_velocity = normalize(end - org) * shotspeed + shotspeedupward * '0 0 1';
  91         return false;
  92 }
  93
  94 void lag_update(entity this)
  95 {
  96         if (this.lag1_time) if (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;}
  97         if (this.lag2_time) if (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;}
  98         if (this.lag3_time) if (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;}
  99         if (this.lag4_time) if (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;}
 100         if (this.lag5_time) if (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;}
 101 }
 102
 103 float lag_additem(entity this, float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
 104 {
 105         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;}
 106         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;}
 107         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;}
 108         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;}
 109         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;}
 110         // no room for it (what is the best thing to do here??)
 111         return false;
 112 }
 113
 114 bool bot_shouldattack(entity this, entity targ)
 115 {
 116         if (targ.team == this.team)
 117         {
 118                 if (targ == this)
 119                         return false;
 120                 if (teamplay)
 121                 if (targ.team != 0)
 122                         return false;
 123         }
 124
 125         if(STAT(FROZEN, targ))
 126                 return false;
 127
 128         if(teamplay)
 129         {
 130                 if(targ.team==0)
 131                         return false;
 132         }
 133         else if(bot_ignore_bots)
 134                 if(IS_BOT_CLIENT(targ))
 135                         return false;
 136
 137         if (!targ.takedamage)
 138                 return false;
 139         if (IS_DEAD(targ))
 140                 return false;
 141         if (PHYS_INPUT_BUTTON_CHAT(targ))
 142                 return false;
 143         if(targ.flags & FL_NOTARGET)
 144                 return false;
 145
 146         if(MUTATOR_CALLHOOK(BotShouldAttack, this, targ))
 147                 return false;
 148
 149         return true;
 150 }
 151
 152 void bot_lagfunc(entity this, float t, float f1, float f2, entity e1, vector v1, vector v2, vector v3, vector v4)
 153 {
 154         if(this.flags & FL_INWATER)
 155         {
 156                 this.bot_aimtarg = NULL;
 157                 return;
 158         }
 159         this.bot_aimtarg = e1;
 160         this.bot_aimlatency = this.ping; // FIXME?  Shouldn't this be in the lag item?
 161         //this.bot_aimorigin = v1;
 162         //this.bot_aimvelocity = v2;
 163         this.bot_aimtargorigin = v3;
 164         this.bot_aimtargvelocity = v4;
 165         if(skill <= 0)
 166                 this.bot_canfire = (random() < 0.8);
 167         else if(skill <= 1)
 168                 this.bot_canfire = (random() < 0.9);
 169         else if(skill <= 2)
 170                 this.bot_canfire = (random() < 0.95);
 171         else
 172                 this.bot_canfire = 1;
 173 }
 174
 175 float bot_aimdir(entity this, vector v, float maxfiredeviation)
 176 {
 177         float dist, delta_t, blend;
 178         vector desiredang, diffang;
 179
 180         //dprint("aim ", this.netname, ": old:", vtos(this.v_angle));
 181         // make sure v_angle is sane first
 182         this.v_angle_y = this.v_angle.y - floor(this.v_angle.y / 360) * 360;
 183         this.v_angle_z = 0;
 184
 185         // get the desired angles to aim at
 186         //dprint(" at:", vtos(v));
 187         v = normalize(v);
 188         //te_lightning2(NULL, this.origin + this.view_ofs, this.origin + this.view_ofs + v * 200);
 189         if (time >= this.bot_badaimtime)
 190         {
 191                 this.bot_badaimtime = max(this.bot_badaimtime + 0.3, time);
 192                 this.bot_badaimoffset = randomvec() * bound(0, 5 - 0.5 * (skill+this.bot_offsetskill), 5) * autocvar_bot_ai_aimskill_offset;
 193         }
 194         desiredang = vectoangles(v) + this.bot_badaimoffset;
 195         //dprint(" desired:", vtos(desiredang));
 196         if (desiredang.x >= 180)
 197                 desiredang.x = desiredang.x - 360;
 198         desiredang.x = bound(-90, 0 - desiredang.x, 90);
 199         desiredang.z = this.v_angle.z;
 200         //dprint(" / ", vtos(desiredang));
 201
 202         //// pain throws off aim
 203         //if (this.bot_painintensity)
 204         //{
 205         //      // shake from pain
 206         //      desiredang = desiredang + randomvec() * this.bot_painintensity * 0.2;
 207         //}
 208
 209         // calculate turn angles
 210         diffang = (desiredang - this.bot_olddesiredang);
 211         // wrap yaw turn
 212         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 213         if (diffang.y >= 180)
 214                 diffang.y = diffang.y - 360;
 215         this.bot_olddesiredang = desiredang;
 216         //dprint(" diff:", vtos(diffang));
 217
 218         delta_t = time-this.bot_prevaimtime;
 219         this.bot_prevaimtime = time;
 220         // Here we will try to anticipate the comming aiming direction
 221         this.bot_1st_order_aimfilter= this.bot_1st_order_aimfilter
 222                 + (diffang * (1 / delta_t)    - this.bot_1st_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_1st,1);
 223         this.bot_2nd_order_aimfilter= this.bot_2nd_order_aimfilter
 224                 + (this.bot_1st_order_aimfilter - this.bot_2nd_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_2nd,1);
 225         this.bot_3th_order_aimfilter= this.bot_3th_order_aimfilter
 226                 + (this.bot_2nd_order_aimfilter - this.bot_3th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_3th,1);
 227         this.bot_4th_order_aimfilter= this.bot_4th_order_aimfilter
 228                 + (this.bot_3th_order_aimfilter - this.bot_4th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_4th,1);
 229         this.bot_5th_order_aimfilter= this.bot_5th_order_aimfilter
 230                 + (this.bot_4th_order_aimfilter - this.bot_5th_order_aimfilter) * bound(0, autocvar_bot_ai_aimskill_order_filter_5th,1);
 231
 232         //blend = (bound(0,skill,10)*0.1)*((1-bound(0,skill,10)*0.05) ** 2.5)*5.656854249; //Plot formule before changing !
 233         blend = bound(0,skill+this.bot_aimskill,10)*0.1;
 234         desiredang = desiredang + blend *
 235         (
 236                   this.bot_1st_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_1st
 237                 + this.bot_2nd_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_2nd
 238                 + this.bot_3th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_3th
 239                 + this.bot_4th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_4th
 240                 + this.bot_5th_order_aimfilter * autocvar_bot_ai_aimskill_order_mix_5th
 241         );
 242
 243         // calculate turn angles
 244         diffang = desiredang - this.bot_mouseaim;
 245         // wrap yaw turn
 246         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 247         if (diffang.y >= 180)
 248                 diffang.y = diffang.y - 360;
 249         //dprint(" diff:", vtos(diffang));
 250
 251         if (time >= this.bot_aimthinktime)
 252         {
 253                 this.bot_aimthinktime = max(this.bot_aimthinktime + 0.5 - 0.05*(skill+this.bot_thinkskill), time);
 254                 this.bot_mouseaim = this.bot_mouseaim + diffang * (1-random()*0.1*bound(1,10-(skill+this.bot_thinkskill),10));
 255         }
 256
 257         //this.v_angle = this.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 258
 259         diffang = this.bot_mouseaim - desiredang;
 260         // wrap yaw turn
 261         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 262         if (diffang.y >= 180)
 263                 diffang.y = diffang.y - 360;
 264         desiredang = desiredang + diffang * bound(0,autocvar_bot_ai_aimskill_think,1);
 265
 266         // calculate turn angles
 267         diffang = desiredang - this.v_angle;
 268         // wrap yaw turn
 269         diffang.y = diffang.y - floor(diffang.y / 360) * 360;
 270         if (diffang.y >= 180)
 271                 diffang.y = diffang.y - 360;
 272         //dprint(" diff:", vtos(diffang));
 273
 274         // jitter tracking
 275         dist = vlen(diffang);
 276         //diffang = diffang + randomvec() * (dist * 0.05 * (3.5 - bound(0, skill, 3)));
 277
 278         // turn
 279         float r, fixedrate, blendrate;
 280         fixedrate = autocvar_bot_ai_aimskill_fixedrate / bound(1,dist,1000);
 281         blendrate = autocvar_bot_ai_aimskill_blendrate;
 282         r = max(fixedrate, blendrate);
 283         //this.v_angle = this.v_angle + diffang * bound(frametime, r * frametime * (2+skill*skill*0.05-random()*0.05*(10-skill)), 1);
 284         this.v_angle = this.v_angle + diffang * bound(delta_t, r * delta_t * (2+(skill+this.bot_mouseskill ** 3)*0.005-random()), 1);
 285         this.v_angle = this.v_angle * bound(0,autocvar_bot_ai_aimskill_mouse,1) + desiredang * bound(0,(1-autocvar_bot_ai_aimskill_mouse),1);
 286         //this.v_angle = this.v_angle + diffang * bound(0, r * frametime * (skill * 0.5 + 2), 1);
 287         //this.v_angle = this.v_angle + diffang * (1/ blendrate);
 288         this.v_angle_z = 0;
 289         this.v_angle_y = this.v_angle.y - floor(this.v_angle.y / 360) * 360;
 290         //dprint(" turn:", vtos(this.v_angle));
 291
 292         makevectors(this.v_angle);
 293         shotorg = this.origin + this.view_ofs;
 294         shotdir = v_forward;
 295
 296         //dprint(" dir:", vtos(v_forward));
 297         //te_lightning2(NULL, shotorg, shotorg + shotdir * 100);
 298
 299         // calculate turn angles again
 300         //diffang = desiredang - this.v_angle;
 301         //diffang_y = diffang_y - floor(diffang_y / 360) * 360;
 302         //if (diffang_y >= 180)
 303         //      diffang_y = diffang_y - 360;
 304
 305         //dprint("e ", vtos(diffang), " < ", ftos(maxfiredeviation), "\n");
 306
 307         // decide whether to fire this time
 308         // note the maxfiredeviation is in degrees so this has to convert to radians first
 309         //if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
 310         if ((normalize(v) * shotdir) >= cos(maxfiredeviation * (3.14159265358979323846 / 180)))
 311         if(vdist(trace_endpos-shotorg, <, 500 + 500 * bound(0, skill + this.bot_aggresskill, 10)) || random()*random()>bound(0,(skill+this.bot_aggresskill)*0.05,1))
 312                 this.bot_firetimer = time + bound(0.1, 0.5-(skill+this.bot_aggresskill)*0.05, 0.5);
 313         //traceline(shotorg,shotorg+shotdir*1000,false,NULL);
 314         //dprint(ftos(maxfiredeviation),"\n");
 315         //dprint(" diff:", vtos(diffang), "\n");
 316
 317         return this.bot_canfire && (time < this.bot_firetimer);
 318 }
 319
 320 vector bot_shotlead(vector targorigin, vector targvelocity, float shotspeed, float shotdelay)
 321 {
 322         // Try to add code here that predicts gravity effect here, no clue HOW to though ... well not yet atleast...
 323         return targorigin + targvelocity * (shotdelay + vlen(targorigin - shotorg) / shotspeed);
 324 }
 325
 326 bool bot_aim(entity this, .entity weaponentity, float shotspeed, float shotspeedupward, float maxshottime, bool applygravity)
 327 {
 328         float f, r, hf, distanceratio;
 329         vector v;
 330         /*
 331         eprint(this);
 332         dprint("bot_aim(", ftos(shotspeed));
 333         dprint(", ", ftos(shotspeedupward));
 334         dprint(", ", ftos(maxshottime));
 335         dprint(", ", ftos(applygravity));
 336         dprint(");\n");
 337         */
 338
 339         hf = this.dphitcontentsmask;
 340         this.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_CORPSE;
 341
 342         shotspeed *= W_WeaponSpeedFactor(this);
 343         shotspeedupward *= W_WeaponSpeedFactor(this);
 344         if (!shotspeed)
 345         {
 346                 LOG_TRACE("bot_aim: WARNING: weapon ", this.(weaponentity).m_weapon.m_name, " shotspeed is zero!");
 347                 shotspeed = 1000000;
 348         }
 349         if (!maxshottime)
 350         {
 351                 LOG_TRACE("bot_aim: WARNING: weapon ", this.(weaponentity).m_weapon.m_name, " maxshottime is zero!");
 352                 maxshottime = 1;
 353         }
 354         makevectors(this.v_angle);
 355         shotorg = this.origin + this.view_ofs;
 356         shotdir = v_forward;
 357         v = bot_shotlead(this.bot_aimtargorigin, this.bot_aimtargvelocity, shotspeed, this.bot_aimlatency);
 358         distanceratio = sqrt(bound(0,skill,10000))*0.3*(vlen(v-shotorg)-100)/autocvar_bot_ai_aimskill_firetolerance_distdegrees;
 359         distanceratio = bound(0,distanceratio,1);
 360         r =  (autocvar_bot_ai_aimskill_firetolerance_maxdegrees-autocvar_bot_ai_aimskill_firetolerance_mindegrees)
 361                 * (1-distanceratio) + autocvar_bot_ai_aimskill_firetolerance_mindegrees;
 362         if (applygravity && this.bot_aimtarg)
 363         {
 364                 if (!findtrajectorywithleading(shotorg, '0 0 0', '0 0 0', this.bot_aimtarg, shotspeed, shotspeedupward, maxshottime, 0, this))
 365                 {
 366                         this.dphitcontentsmask = hf;
 367                         return false;
 368                 }
 369
 370                 f = bot_aimdir(this, findtrajectory_velocity - shotspeedupward * '0 0 1', r);
 371         }
 372         else
 373         {
 374                 f = bot_aimdir(this, v - shotorg, r);
 375                 //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");
 376                 //traceline(shotorg, shotorg + shotdir * 10000, false, this);
 377                 //if (trace_ent.takedamage)
 378                 //if (trace_fraction < 1)
 379                 //if (!bot_shouldattack(this, trace_ent))
 380                 //      return false;
 381                 traceline(shotorg, this.bot_aimtargorigin, false, this);
 382                 if (trace_fraction < 1)
 383                 if (trace_ent != this.enemy)
 384                 if (!bot_shouldattack(this, trace_ent))
 385                 {
 386                         this.dphitcontentsmask = hf;
 387                         return false;
 388                 }
 389         }
 390
 391         //if (r > maxshottime * shotspeed)
 392         //      return false;
 393         this.dphitcontentsmask = hf;
 394         return true;
 395 }