qcsrc/server/w_rocketlauncher.qc

   1 #ifdef REGISTER_WEAPON
   2 REGISTER_WEAPON(ROCKET_LAUNCHER, w_rlauncher, IT_ROCKETS, 9, WEP_FLAG_NORMAL | WEP_FLAG_RELOADABLE | WEP_FLAG_CANCLIMB | WEP_TYPE_SPLASH, BOT_PICKUP_RATING_HIGH, "rl", "rocketlauncher", _("Rocket Launcher"))
   3 #else
   4 #ifdef SVQC
   5 .float rl_release;
   6 .float rl_detonate_later;
   7
   8 void W_Rocket_Unregister()
   9 {
  10         if(self.realowner && self.realowner.lastrocket == self)
  11         {
  12                 self.realowner.lastrocket = world;
  13                 // self.realowner.rl_release = 1;
  14         }
  15 }
  16
  17 void W_Rocket_Explode ()
  18 {
  19         W_Rocket_Unregister();
  20
  21         if(other.takedamage == DAMAGE_AIM)
  22                 if(other.classname == "player")
  23                         if(IsDifferentTeam(self.realowner, other))
  24                                 if(other.deadflag == DEAD_NO)
  25                                         if(IsFlying(other))
  26                                                 Send_Notification(NOTIF_ONE, self.realowner, MSG_ANNCE, ANNCE_ACHIEVEMENT_AIRSHOT);
  27
  28         self.event_damage = func_null;
  29         self.takedamage = DAMAGE_NO;
  30
  31         RadiusDamage (self, self.realowner, autocvar_g_balance_rocketlauncher_damage, autocvar_g_balance_rocketlauncher_edgedamage, autocvar_g_balance_rocketlauncher_radius, world, autocvar_g_balance_rocketlauncher_force, self.projectiledeathtype, other);
  32
  33         if (self.realowner.weapon == WEP_ROCKET_LAUNCHER)
  34         {
  35                 if(self.realowner.ammo_rockets < autocvar_g_balance_rocketlauncher_ammo)
  36                 {
  37                         self.realowner.cnt = WEP_ROCKET_LAUNCHER;
  38                         ATTACK_FINISHED(self.realowner) = time;
  39                         self.realowner.switchweapon = w_getbestweapon(self.realowner);
  40                 }
  41         }
  42         remove (self);
  43 }
  44
  45 void W_Rocket_DoRemoteExplode ()
  46 {
  47         W_Rocket_Unregister();
  48
  49         self.event_damage = func_null;
  50         self.takedamage = DAMAGE_NO;
  51
  52         RadiusDamage (self, self.realowner, autocvar_g_balance_rocketlauncher_remote_damage, autocvar_g_balance_rocketlauncher_remote_edgedamage, autocvar_g_balance_rocketlauncher_remote_radius, world, autocvar_g_balance_rocketlauncher_remote_force, self.projectiledeathtype | HITTYPE_BOUNCE, world);
  53
  54         if (self.realowner.weapon == WEP_ROCKET_LAUNCHER)
  55         {
  56                 if(self.realowner.ammo_rockets < autocvar_g_balance_rocketlauncher_ammo)
  57                 {
  58                         self.realowner.cnt = WEP_ROCKET_LAUNCHER;
  59                         ATTACK_FINISHED(self.realowner) = time;
  60                         self.realowner.switchweapon = w_getbestweapon(self.realowner);
  61                 }
  62         }
  63         remove (self);
  64 }
  65
  66 void W_Rocket_RemoteExplode()
  67 {
  68         if(self.realowner.deadflag == DEAD_NO)
  69         if(self.realowner.lastrocket)
  70         {
  71                 if((self.spawnshieldtime >= 0)
  72                         ? (time >= self.spawnshieldtime) // timer
  73                         : (vlen(NearestPointOnBox(self.realowner, self.origin) - self.origin) > autocvar_g_balance_rocketlauncher_remote_radius) // safety device
  74                 )
  75                 {
  76                         W_Rocket_DoRemoteExplode();
  77                 }
  78         }
  79 }
  80
  81 vector rocket_steerto(vector thisdir, vector goaldir, float maxturn_cos)
  82 {
  83         if(thisdir * goaldir > maxturn_cos)
  84                 return goaldir;
  85         if(thisdir * goaldir < -0.9998) // less than 1 degree and opposite
  86                 return thisdir; // refuse to guide (better than letting a numerical error happen)
  87         float f, m2;
  88         vector v;
  89         // solve:
  90         //   g = normalize(thisdir + goaldir * X)
  91         //   thisdir * g = maxturn
  92         //
  93         //   gg = thisdir + goaldir * X
  94         //   (thisdir * gg)^2 = maxturn^2 * (gg * gg)
  95         //
  96         //   (1 + (thisdir * goaldir) * X)^2 = maxturn^2 * (1 + X*X + 2 * X * thisdir * goaldir)
  97         f = thisdir * goaldir;
  98         //   (1 + f * X)^2 = maxturn^2 * (1 + X*X + 2 * X * f)
  99         //   0 = (m^2 - f^2) * x^2 + (2 * f * (m^2 - 1)) * x + (m^2 - 1)
 100         m2 = maxturn_cos * maxturn_cos;
 101         v = solve_quadratic(m2 - f * f, 2 * f * (m2 - 1), m2 - 1);
 102         return normalize(thisdir + goaldir * v_y); // the larger solution!
 103 }
 104 // assume thisdir == -goaldir:
 105 //   f == -1
 106 //   v = solve_qadratic(m2 - 1, -2 * (m2 - 1), m2 - 1)
 107 //   (m2 - 1) x^2 - 2 * (m2 - 1) * x + (m2 - 1) = 0
 108 //   x^2 - 2 * x + 1 = 0
 109 //   (x - 1)^2 = 0
 110 //   x = 1
 111 //   normalize(thisdir + goaldir)
 112 //   normalize(0)
 113
 114 void W_Rocket_Think (void)
 115 {
 116         vector desireddir, olddir, newdir, desiredorigin, goal;
 117 #if 0
 118         float cosminang, cosmaxang, cosang;
 119 #endif
 120         float velspeed, f;
 121         self.nextthink = time;
 122         if (time > self.cnt)
 123         {
 124                 other = world;
 125                 self.projectiledeathtype |= HITTYPE_BOUNCE;
 126                 W_Rocket_Explode ();
 127                 return;
 128         }
 129
 130         // accelerate
 131         makevectors(self.angles_x * '-1 0 0' + self.angles_y * '0 1 0');
 132         velspeed = autocvar_g_balance_rocketlauncher_speed * g_weaponspeedfactor - (self.velocity * v_forward);
 133         if (velspeed > 0)
 134                 self.velocity = self.velocity + v_forward * min(autocvar_g_balance_rocketlauncher_speedaccel * g_weaponspeedfactor * frametime, velspeed);
 135
 136         // laser guided, or remote detonation
 137         if (self.realowner.weapon == WEP_ROCKET_LAUNCHER)
 138         {
 139                 if(self == self.realowner.lastrocket)
 140                 if not(self.realowner.rl_release)
 141                 if not(self.BUTTON_ATCK2)
 142                 if(autocvar_g_balance_rocketlauncher_guiderate)
 143                 if(time > self.pushltime)
 144                 if(self.realowner.deadflag == DEAD_NO)
 145                 {
 146                         f = autocvar_g_balance_rocketlauncher_guideratedelay;
 147                         if(f)
 148                                 f = bound(0, (time - self.pushltime) / f, 1);
 149                         else
 150                                 f = 1;
 151
 152                         velspeed = vlen(self.velocity);
 153
 154                         makevectors(self.realowner.v_angle);
 155                         desireddir = WarpZone_RefSys_TransformVelocity(self.realowner, self, v_forward);
 156                         desiredorigin = WarpZone_RefSys_TransformOrigin(self.realowner, self, self.realowner.origin + self.realowner.view_ofs);
 157                         olddir = normalize(self.velocity);
 158
 159                         // now it gets tricky... we want to move like some curve to approximate the target direction
 160                         // but we are limiting the rate at which we can turn!
 161                         goal = desiredorigin + ((self.origin - desiredorigin) * desireddir + autocvar_g_balance_rocketlauncher_guidegoal) * desireddir;
 162                         newdir = rocket_steerto(olddir, normalize(goal - self.origin), cos(autocvar_g_balance_rocketlauncher_guiderate * f * frametime * DEG2RAD));
 163
 164                         self.velocity = newdir * velspeed;
 165                         self.angles = vectoangles(self.velocity);
 166
 167                         if(!self.count)
 168                         {
 169                                 pointparticles(particleeffectnum("rocket_guide"), self.origin, self.velocity, 1);
 170                                 // TODO add a better sound here
 171                                 sound (self.realowner, CH_WEAPON_B, "weapons/rocket_mode.wav", VOL_BASE, ATTN_NORM);
 172                                 self.count = 1;
 173                         }
 174                 }
 175
 176                 if(self.rl_detonate_later)
 177                         W_Rocket_RemoteExplode();
 178         }
 179
 180         if(self.csqcprojectile_clientanimate == 0)
 181                 UpdateCSQCProjectile(self);
 182 }
 183
 184 void W_Rocket_Touch (void)
 185 {
 186         if(WarpZone_Projectile_Touch())
 187         {
 188                 if(wasfreed(self))
 189                         W_Rocket_Unregister();
 190                 return;
 191         }
 192         W_Rocket_Unregister();
 193         W_Rocket_Explode ();
 194 }
 195
 196 void W_Rocket_Damage (entity inflictor, entity attacker, float damage, float deathtype, vector hitloc, vector force)
 197 {
 198         if (self.health <= 0)
 199                 return;
 200
 201         if (!W_CheckProjectileDamage(inflictor.realowner, self.realowner, deathtype, -1)) // no exceptions
 202                 return; // g_projectiles_damage says to halt
 203
 204         self.health = self.health - damage;
 205         self.angles = vectoangles(self.velocity);
 206
 207         if (self.health <= 0)
 208                 W_PrepareExplosionByDamage(attacker, W_Rocket_Explode);
 209 }
 210
 211 void W_Rocket_Attack (void)
 212 {
 213         entity missile;
 214         entity flash;
 215
 216         W_DecreaseAmmo(ammo_rockets, autocvar_g_balance_rocketlauncher_ammo, autocvar_g_balance_rocketlauncher_reload_ammo);
 217
 218         W_SetupShot_ProjectileSize (self, '-3 -3 -3', '3 3 3', FALSE, 5, "weapons/rocket_fire.wav", CH_WEAPON_A, autocvar_g_balance_rocketlauncher_damage);
 219         pointparticles(particleeffectnum("rocketlauncher_muzzleflash"), w_shotorg, w_shotdir * 1000, 1);
 220
 221         missile = WarpZone_RefSys_SpawnSameRefSys(self);
 222         missile.owner = missile.realowner = self;
 223         self.lastrocket = missile;
 224         if(autocvar_g_balance_rocketlauncher_detonatedelay >= 0)
 225                 missile.spawnshieldtime = time + autocvar_g_balance_rocketlauncher_detonatedelay;
 226         else
 227                 missile.spawnshieldtime = -1;
 228         missile.pushltime = time + autocvar_g_balance_rocketlauncher_guidedelay;
 229         missile.classname = "rocket";
 230         missile.bot_dodge = TRUE;
 231         missile.bot_dodgerating = autocvar_g_balance_rocketlauncher_damage * 2; // * 2 because it can be detonated inflight which makes it even more dangerous
 232
 233         missile.takedamage = DAMAGE_YES;
 234         missile.damageforcescale = autocvar_g_balance_rocketlauncher_damageforcescale;
 235         missile.health = autocvar_g_balance_rocketlauncher_health;
 236         missile.event_damage = W_Rocket_Damage;
 237         missile.damagedbycontents = TRUE;
 238
 239         missile.movetype = MOVETYPE_FLY;
 240         PROJECTILE_MAKETRIGGER(missile);
 241         missile.projectiledeathtype = WEP_ROCKET_LAUNCHER;
 242         setsize (missile, '-3 -3 -3', '3 3 3'); // give it some size so it can be shot
 243
 244         setorigin (missile, w_shotorg - v_forward * 3); // move it back so it hits the wall at the right point
 245         W_SetupProjectileVelocity(missile, autocvar_g_balance_rocketlauncher_speedstart, 0);
 246         missile.angles = vectoangles (missile.velocity);
 247
 248         missile.touch = W_Rocket_Touch;
 249         missile.think = W_Rocket_Think;
 250         missile.nextthink = time;
 251         missile.cnt = time + autocvar_g_balance_rocketlauncher_lifetime;
 252         missile.flags = FL_PROJECTILE;
 253         missile.missile_flags = MIF_SPLASH;
 254
 255         CSQCProjectile(missile, autocvar_g_balance_rocketlauncher_guiderate == 0 && autocvar_g_balance_rocketlauncher_speedaccel == 0, PROJECTILE_ROCKET, FALSE); // because of fly sound
 256
 257         // muzzle flash for 1st person view
 258         flash = spawn ();
 259         setmodel (flash, "models/flash.md3"); // precision set below
 260         SUB_SetFade (flash, time, 0.1);
 261         flash.effects = EF_ADDITIVE | EF_FULLBRIGHT | EF_LOWPRECISION;
 262         W_AttachToShotorg(flash, '5 0 0');
 263
 264         // common properties
 265         other = missile; MUTATOR_CALLHOOK(EditProjectile);
 266 }
 267
 268 void spawnfunc_weapon_rocketlauncher (void); // defined in t_items.qc
 269
 270 float w_rlauncher(float req)
 271 {
 272         entity rock;
 273         float rockfound;
 274         float ammo_amount;
 275
 276         if (req == WR_AIM)
 277         {
 278                 // aim and decide to fire if appropriate
 279                 self.BUTTON_ATCK = bot_aim(autocvar_g_balance_rocketlauncher_speed, 0, autocvar_g_balance_rocketlauncher_lifetime, FALSE);
 280                 if(skill >= 2) // skill 0 and 1 bots won't detonate rockets!
 281                 {
 282                         // decide whether to detonate rockets
 283                         entity missile, targetlist, targ;
 284                         float edgedamage, coredamage, edgeradius, recipricoledgeradius, d;
 285                         float selfdamage, teamdamage, enemydamage;
 286                         edgedamage = autocvar_g_balance_rocketlauncher_edgedamage;
 287                         coredamage = autocvar_g_balance_rocketlauncher_damage;
 288                         edgeradius = autocvar_g_balance_rocketlauncher_radius;
 289                         recipricoledgeradius = 1 / edgeradius;
 290                         selfdamage = 0;
 291                         teamdamage = 0;
 292                         enemydamage = 0;
 293                         targetlist = findchainfloat(bot_attack, TRUE);
 294                         missile = find(world, classname, "rocket");
 295                         while (missile)
 296                         {
 297                                 if (missile.realowner != self)
 298                                 {
 299                                         missile = find(missile, classname, "rocket");
 300                                         continue;
 301                                 }
 302                                 targ = targetlist;
 303                                 while (targ)
 304                                 {
 305                                         d = vlen(targ.origin + (targ.mins + targ.maxs) * 0.5 - missile.origin);
 306                                         d = bound(0, edgedamage + (coredamage - edgedamage) * sqrt(1 - d * recipricoledgeradius), 10000);
 307                                         // count potential damage according to type of target
 308                                         if (targ == self)
 309                                                 selfdamage = selfdamage + d;
 310                                         else if (targ.team == self.team && teamplay)
 311                                                 teamdamage = teamdamage + d;
 312                                         else if (bot_shouldattack(targ))
 313                                                 enemydamage = enemydamage + d;
 314                                         targ = targ.chain;
 315                                 }
 316                                 missile = find(missile, classname, "rocket");
 317                         }
 318                         float desirabledamage;
 319                         desirabledamage = enemydamage;
 320                         if (time > self.invincible_finished && time > self.spawnshieldtime)
 321                                 desirabledamage = desirabledamage - selfdamage * autocvar_g_balance_selfdamagepercent;
 322                         if (teamplay && self.team)
 323                                 desirabledamage = desirabledamage - teamdamage;
 324
 325                         missile = find(world, classname, "rocket");
 326                         while (missile)
 327                         {
 328                                 if (missile.realowner != self)
 329                                 {
 330                                         missile = find(missile, classname, "rocket");
 331                                         continue;
 332                                 }
 333                                 makevectors(missile.v_angle);
 334                                 targ = targetlist;
 335                                 if (skill > 9) // normal players only do this for the target they are tracking
 336                                 {
 337                                         targ = targetlist;
 338                                         while (targ)
 339                                         {
 340                                                 if (
 341                                                         (v_forward * normalize(missile.origin - targ.origin)< 0.1)
 342                                                         && desirabledamage > 0.1*coredamage
 343                                                 )self.BUTTON_ATCK2 = TRUE;
 344                                                 targ = targ.chain;
 345                                         }
 346                                 }else{
 347                                         float distance; distance= bound(300,vlen(self.origin-self.enemy.origin),30000);
 348                                         //As the distance gets larger, a correct detonation gets near imposible
 349                                         //Bots are assumed to use the rocket spawnfunc_light to see if the rocket gets near a player
 350                                         if(v_forward * normalize(missile.origin - self.enemy.origin)< 0.1)
 351                                                 if(self.enemy.classname == "player")
 352                                                         if(desirabledamage >= 0.1*coredamage)
 353                                                                 if(random()/distance*300 > frametime*bound(0,(10-skill)*0.2,1))
 354                                                                         self.BUTTON_ATCK2 = TRUE;
 355                                 //      dprint(ftos(random()/distance*300),">");dprint(ftos(frametime*bound(0,(10-skill)*0.2,1)),"\n");
 356                                 }
 357
 358                                 missile = find(missile, classname, "rocket");
 359                         }
 360                         // if we would be doing at X percent of the core damage, detonate it
 361                         // but don't fire a new shot at the same time!
 362                         if (desirabledamage >= 0.75 * coredamage) //this should do group damage in rare fortunate events
 363                                 self.BUTTON_ATCK2 = TRUE;
 364                         if ((skill > 6.5) && (selfdamage > self.health))
 365                                 self.BUTTON_ATCK2 = FALSE;
 366                         //if(self.BUTTON_ATCK2 == TRUE)
 367                         //      dprint(ftos(desirabledamage),"\n");
 368                         if (self.BUTTON_ATCK2 == TRUE) self.BUTTON_ATCK = FALSE;
 369                 }
 370         }
 371         else if (req == WR_THINK)
 372         {
 373                 if(autocvar_g_balance_rocketlauncher_reload_ammo && self.clip_load < autocvar_g_balance_rocketlauncher_ammo) // forced reload
 374                         weapon_action(self.weapon, WR_RELOAD);
 375                 else
 376                 {
 377                         if (self.BUTTON_ATCK)
 378                         {
 379                                 if(self.rl_release || autocvar_g_balance_rocketlauncher_guidestop)
 380                                 if(weapon_prepareattack(0, autocvar_g_balance_rocketlauncher_refire))
 381                                 {
 382                                         W_Rocket_Attack();
 383                                         weapon_thinkf(WFRAME_FIRE1, autocvar_g_balance_rocketlauncher_animtime, w_ready);
 384                                         self.rl_release = 0;
 385                                 }
 386                         }
 387                         else
 388                                 self.rl_release = 1;
 389
 390                         if (self.BUTTON_ATCK2)
 391                         {
 392                                 rockfound = 0;
 393                                 for(rock = world; (rock = find(rock, classname, "rocket")); ) if(rock.realowner == self)
 394                                 {
 395                                         if(!rock.rl_detonate_later)
 396                                         {
 397                                                 rock.rl_detonate_later = TRUE;
 398                                                 rockfound = 1;
 399                                         }
 400                                 }
 401                                 if(rockfound)
 402                                         sound (self, CH_WEAPON_B, "weapons/rocket_det.wav", VOL_BASE, ATTN_NORM);
 403                         }
 404                 }
 405         }
 406         else if (req == WR_PRECACHE)
 407         {
 408                 precache_model ("models/flash.md3");
 409                 precache_model ("models/weapons/g_rl.md3");
 410                 precache_model ("models/weapons/v_rl.md3");
 411                 precache_model ("models/weapons/h_rl.iqm");
 412                 precache_sound ("weapons/rocket_det.wav");
 413                 precache_sound ("weapons/rocket_fire.wav");
 414                 precache_sound ("weapons/rocket_mode.wav");
 415                 //precache_sound ("weapons/reload.wav"); // until weapons have individual reload sounds, precache the reload sound somewhere else
 416         }
 417         else if (req == WR_SETUP)
 418         {
 419                 weapon_setup(WEP_ROCKET_LAUNCHER);
 420                 self.current_ammo = ammo_rockets;
 421                 self.rl_release = 1;
 422         }
 423         else if (req == WR_CHECKAMMO1)
 424         {
 425                 // don't switch while guiding a missile
 426                 if (ATTACK_FINISHED(self) <= time || self.weapon != WEP_ROCKET_LAUNCHER)
 427                 {
 428                         ammo_amount = FALSE;
 429                         if(autocvar_g_balance_rocketlauncher_reload_ammo)
 430                         {
 431                                 if(self.ammo_rockets < autocvar_g_balance_rocketlauncher_ammo && self.(weapon_load[WEP_ROCKET_LAUNCHER]) < autocvar_g_balance_rocketlauncher_ammo)
 432                                         ammo_amount = TRUE;
 433                         }
 434                         else if(self.ammo_rockets < autocvar_g_balance_rocketlauncher_ammo)
 435                                 ammo_amount = TRUE;
 436                         return !ammo_amount;
 437                 }
 438         }
 439         else if (req == WR_CHECKAMMO2)
 440                 return FALSE;
 441         else if (req == WR_RESETPLAYER)
 442         {
 443                 self.rl_release = 0;
 444         }
 445         else if (req == WR_RELOAD)
 446         {
 447                 W_Reload(autocvar_g_balance_rocketlauncher_ammo, autocvar_g_balance_rocketlauncher_reload_ammo, autocvar_g_balance_rocketlauncher_reload_time, "weapons/reload.wav");
 448         }
 449         else if (req == WR_SUICIDEMESSAGE)
 450         {
 451                 return WEAPON_ROCKETLAUNCHER_SUICIDE;
 452         }
 453         else if (req == WR_KILLMESSAGE)
 454         {
 455                 if((w_deathtype & HITTYPE_BOUNCE) || (w_deathtype & HITTYPE_SPLASH))
 456                         return WEAPON_ROCKETLAUNCHER_MURDER_SPLASH;
 457                 else
 458                         return WEAPON_ROCKETLAUNCHER_MURDER_DIRECT;
 459         }
 460         return TRUE;
 461 }
 462 #endif
 463 #ifdef CSQC
 464 float w_rlauncher(float req)
 465 {
 466         if(req == WR_IMPACTEFFECT)
 467         {
 468                 vector org2;
 469                 org2 = w_org + w_backoff * 12;
 470                 pointparticles(particleeffectnum("rocket_explode"), org2, '0 0 0', 1);
 471                 if(!w_issilent)
 472                         sound(self, CH_SHOTS, "weapons/rocket_impact.wav", VOL_BASE, ATTN_NORM);
 473         }
 474         else if(req == WR_PRECACHE)
 475         {
 476                 precache_sound("weapons/rocket_impact.wav");
 477         }
 478         return TRUE;
 479 }
 480 #endif
 481 #endif