qcsrc/server/g_hook.qc

   1 #if defined(CSQC)
   2 #elif defined(MENUQC)
   3 #elif defined(SVQC)
   4         #include "../dpdefs/progsdefs.qh"
   5     #include "../dpdefs/dpextensions.qh"
   6     #include "../warpzonelib/common.qh"
   7     #include "../warpzonelib/server.qh"
   8     #include "../common/constants.qh"
   9     #include "../common/util.qh"
  10     #include "../common/weapons/weapons.qh"
  11     #include "autocvars.qh"
  12     #include "constants.qh"
  13     #include "defs.qh"
  14     #include "vehicles/vehicles_def.qh"
  15     #include "command/common.qh"
  16     #include "g_hook.qh"
  17     #include "round_handler.qh"
  18 #endif
  19
  20 /*============================================
  21
  22       Wazat's Xonotic Grappling Hook
  23
  24         Contact: Wazat1@gmail.com
  25
  26
  27 Installation instructions:
  28 --------------------------
  29
  30 1. Place hook.c in your gamec source directory with the other source files.
  31
  32 2. Add this line to the bottom of progs.src:
  33
  34 gamec/hook.c
  35
  36 3. Open defs.h and add these lines to the very bottom:
  37
  38 // Wazat's grappling hook
  39 .entity         hook;
  40 void GrapplingHookFrame();
  41 void RemoveGrapplingHook(entity pl);
  42 void SetGrappleHookBindings();
  43 // hook impulses
  44 const float GRAPHOOK_FIRE               = 20;
  45 const float GRAPHOOK_RELEASE            = 21;
  46 // (note: you can change the hook impulse #'s to whatever you please)
  47
  48 4. Open client.c and add this to the top of PutClientInServer():
  49
  50         RemoveGrapplingHook(self); // Wazat's Grappling Hook
  51
  52 5. Find ClientConnect() (in client.c) and add these lines to the bottom:
  53
  54         // Wazat's grappling hook
  55         SetGrappleHookBindings();
  56
  57 6. Still in client.c, find PlayerPreThink and add this line just above the call to W_WeaponFrame:
  58
  59         GrapplingHookFrame();
  60
  61 7. Build and test the mod.  You'll want to bind a key to "+hook" like this:
  62 bind ctrl "+hook"
  63
  64 And you should be done!
  65
  66
  67 ============================================*/
  68
  69 .float hook_length;
  70 .float hook_switchweapon;
  71
  72 void RemoveGrapplingHook(entity pl)
  73 {
  74         if(pl.hook == world)
  75                 return;
  76         remove(pl.hook);
  77         pl.hook = world;
  78         if(pl.movetype == MOVETYPE_FLY)
  79                 pl.movetype = MOVETYPE_WALK;
  80
  81         //pl.disableclientprediction = false;
  82 }
  83
  84 void GrapplingHookReset(void)
  85 {
  86         if(self.realowner.hook == self)
  87                 RemoveGrapplingHook(self.owner);
  88         else // in any case:
  89                 remove(self);
  90 }
  91
  92 void GrapplingHookThink();
  93 void GrapplingHook_Stop()
  94 {
  95         pointparticles(particleeffectnum("grapple_impact"), self.origin, '0 0 0', 1);
  96         sound (self, CH_SHOTS, "weapons/hook_impact.wav", VOL_BASE, ATTEN_NORM);
  97
  98         self.state = 1;
  99         self.think = GrapplingHookThink;
 100         self.nextthink = time;
 101         self.touch = func_null;
 102         self.velocity = '0 0 0';
 103         self.movetype = MOVETYPE_NONE;
 104         self.hook_length = -1;
 105 }
 106
 107 .vector hook_start, hook_end;
 108 float GrapplingHookSend(entity to, int sf)
 109 {
 110         WriteByte(MSG_ENTITY, ENT_CLIENT_HOOK);
 111         sf = sf & 0x7F;
 112         if(sound_allowed(MSG_BROADCAST, self.realowner))
 113                 sf |= 0x80;
 114         WriteByte(MSG_ENTITY, sf);
 115         if(sf & 1)
 116         {
 117                 WriteByte(MSG_ENTITY, num_for_edict(self.realowner));
 118         }
 119         if(sf & 2)
 120         {
 121                 WriteCoord(MSG_ENTITY, self.hook_start.x);
 122                 WriteCoord(MSG_ENTITY, self.hook_start.y);
 123                 WriteCoord(MSG_ENTITY, self.hook_start.z);
 124         }
 125         if(sf & 4)
 126         {
 127                 WriteCoord(MSG_ENTITY, self.hook_end.x);
 128                 WriteCoord(MSG_ENTITY, self.hook_end.y);
 129                 WriteCoord(MSG_ENTITY, self.hook_end.z);
 130         }
 131         return true;
 132 }
 133
 134 void GrapplingHookThink()
 135 {
 136         float spd, dist, minlength, pullspeed, ropestretch, ropeairfriction, rubberforce, newlength, rubberforce_overstretch, s;
 137         vector dir, org, end, v0, dv, v, myorg, vs;
 138         if(self.realowner.hook != self) // how did that happen?
 139         {
 140                 error("Owner lost the hook!\n");
 141                 return;
 142         }
 143         if(LostMovetypeFollow(self) || intermission_running || (round_handler_IsActive() && !round_handler_IsRoundStarted()))
 144         {
 145                 RemoveGrapplingHook(self.realowner);
 146                 return;
 147         }
 148         if(self.aiment)
 149                 WarpZone_RefSys_AddIncrementally(self, self.aiment);
 150
 151         self.nextthink = time;
 152
 153         s = self.realowner.cvar_cl_gunalign;
 154         if(s != 1 && s != 2 && s != 4)
 155                 s = 3; // default value
 156         --s;
 157         vs = hook_shotorigin[s];
 158
 159         makevectors(self.realowner.v_angle);
 160         org = self.realowner.origin + self.realowner.view_ofs + v_forward * vs.x + v_right * -vs.y + v_up * vs.z;
 161         myorg = WarpZone_RefSys_TransformOrigin(self.realowner, self, org);
 162
 163         if(self.hook_length < 0)
 164                 self.hook_length = vlen(myorg - self.origin);
 165
 166         if(self.state == 1)
 167         {
 168                 pullspeed = autocvar_g_balance_grapplehook_speed_pull;//2000;
 169                 // speed the rope is pulled with
 170
 171                 rubberforce = autocvar_g_balance_grapplehook_force_rubber;//2000;
 172                 // force the rope will use if it is stretched
 173
 174                 rubberforce_overstretch = autocvar_g_balance_grapplehook_force_rubber_overstretch;//1000;
 175                 // force the rope will use if it is stretched
 176
 177                 minlength = autocvar_g_balance_grapplehook_length_min;//100;
 178                 // minimal rope length
 179                 // if the rope goes below this length, it isn't pulled any more
 180
 181                 ropestretch = autocvar_g_balance_grapplehook_stretch;//400;
 182                 // if the rope is stretched by more than this amount, more rope is
 183                 // given to you again
 184
 185                 ropeairfriction = autocvar_g_balance_grapplehook_airfriction;//0.2
 186                 // while hanging on the rope, this friction component will help you a
 187                 // bit to control the rope
 188
 189                 dir = self.origin - myorg;
 190                 dist = vlen(dir);
 191                 dir = normalize(dir);
 192
 193                 if(autocvar_g_grappling_hook_tarzan)
 194                 {
 195                         v = v0 = WarpZone_RefSys_TransformVelocity(self.realowner, self, self.realowner.velocity);
 196
 197                         // first pull the rope...
 198                         if(self.realowner.hook_state & HOOK_PULLING)
 199                         {
 200                                 newlength = self.hook_length;
 201                                 newlength = max(newlength - pullspeed * frametime, minlength);
 202
 203                                 if(newlength < dist - ropestretch) // overstretched?
 204                                 {
 205                                         newlength = dist - ropestretch;
 206                                         if(v * dir < 0) // only if not already moving in hook direction
 207                                                 v = v + frametime * dir * rubberforce_overstretch;
 208                                 }
 209
 210                                 self.hook_length = newlength;
 211                         }
 212
 213                         if(self.realowner.hook_state & HOOK_RELEASING)
 214                         {
 215                                 newlength = dist;
 216                                 self.hook_length = newlength;
 217                         }
 218                         else
 219                         {
 220                                 // then pull the player
 221                                 spd = bound(0, (dist - self.hook_length) / ropestretch, 1);
 222                                 v = v * (1 - frametime * ropeairfriction);
 223                                 v = v + frametime * dir * spd * rubberforce;
 224
 225                                 dv = ((v - v0) * dir) * dir;
 226                                 if(autocvar_g_grappling_hook_tarzan >= 2)
 227                                 {
 228                                         if(self.aiment.movetype == MOVETYPE_WALK)
 229                                         {
 230                                                 v = v - dv * 0.5;
 231                                                 self.aiment.velocity = self.aiment.velocity - dv * 0.5;
 232                                                 self.aiment.flags &= ~FL_ONGROUND;
 233                                                 self.aiment.pusher = self.realowner;
 234                                                 self.aiment.pushltime = time + autocvar_g_maxpushtime;
 235                                                 self.aiment.istypefrag = self.aiment.BUTTON_CHAT;
 236                                         }
 237                                 }
 238
 239                                 self.realowner.flags &= ~FL_ONGROUND;
 240                         }
 241
 242                         self.realowner.velocity = WarpZone_RefSys_TransformVelocity(self, self.realowner, v);
 243                 }
 244                 else
 245                 {
 246                         end = self.origin - dir*50;
 247                         dist = vlen(end - myorg);
 248                         if(dist < 200)
 249                                 spd = dist * (pullspeed / 200);
 250                         else
 251                                 spd = pullspeed;
 252                         if(spd < 50)
 253                                 spd = 0;
 254                         self.realowner.velocity = dir*spd;
 255                         self.realowner.movetype = MOVETYPE_FLY;
 256
 257                         self.realowner.flags &= ~FL_ONGROUND;
 258                 }
 259         }
 260
 261         makevectors(self.angles.x * '-1 0 0' + self.angles.y * '0 1 0');
 262         myorg = WarpZone_RefSys_TransformOrigin(self, self.realowner, self.origin); // + v_forward * (-9);
 263
 264         if(myorg != self.hook_start)
 265         {
 266                 self.SendFlags |= 2;
 267                 self.hook_start = myorg;
 268         }
 269         if(org != self.hook_end)
 270         {
 271                 self.SendFlags |= 4;
 272                 self.hook_end = org;
 273         }
 274 }
 275
 276 void GrapplingHookTouch (void)
 277 {
 278         PROJECTILE_TOUCH;
 279
 280         GrapplingHook_Stop();
 281
 282         if(other)
 283                 if(other.movetype != MOVETYPE_NONE)
 284                 {
 285                         SetMovetypeFollow(self, other);
 286                         WarpZone_RefSys_BeginAddingIncrementally(self, self.aiment);
 287                 }
 288
 289         //self.realowner.disableclientprediction = true;
 290 }
 291
 292 void GrapplingHook_Damage (entity inflictor, entity attacker, float damage, int deathtype, vector hitloc, vector force)
 293 {
 294         if(self.health <= 0)
 295                 return;
 296
 297         if (!W_CheckProjectileDamage(inflictor.realowner, self.realowner, deathtype, -1)) // no exceptions
 298                 return; // g_balance_projectiledamage says to halt
 299
 300         self.health = self.health - damage;
 301
 302         if (self.health <= 0)
 303         {
 304                 if(attacker != self.realowner)
 305                 {
 306                         self.realowner.pusher = attacker;
 307                         self.realowner.pushltime = time + autocvar_g_maxpushtime;
 308                         self.realowner.istypefrag = self.realowner.BUTTON_CHAT;
 309                 }
 310                 RemoveGrapplingHook(self.realowner);
 311         }
 312 }
 313
 314 void FireGrapplingHook (void)
 315 {
 316         entity missile;
 317         vector org;
 318         float s;
 319         vector vs;
 320
 321         if(forbidWeaponUse()) return;
 322         if(self.vehicle) return;
 323
 324         makevectors(self.v_angle);
 325
 326         s = self.cvar_cl_gunalign;
 327         if(s != 1 && s != 2 && s != 4)
 328                 s = 3; // default value
 329         --s;
 330         vs = hook_shotorigin[s];
 331
 332         // UGLY WORKAROUND: play this on CH_WEAPON_B so it can't cut off fire sounds
 333         sound (self, CH_WEAPON_B, "weapons/hook_fire.wav", VOL_BASE, ATTEN_NORM);
 334         org = self.origin + self.view_ofs + v_forward * vs.x + v_right * -vs.y + v_up * vs.z;
 335
 336         tracebox(self.origin + self.view_ofs, '-3 -3 -3', '3 3 3', org, MOVE_NORMAL, self);
 337         org = trace_endpos;
 338
 339         pointparticles(particleeffectnum("grapple_muzzleflash"), org, '0 0 0', 1);
 340
 341         missile = WarpZone_RefSys_SpawnSameRefSys(self);
 342         missile.owner = missile.realowner = self;
 343         self.hook = missile;
 344         missile.reset = GrapplingHookReset;
 345         missile.classname = "grapplinghook";
 346         missile.flags = FL_PROJECTILE;
 347
 348         missile.movetype = MOVETYPE_FLY;
 349         PROJECTILE_MAKETRIGGER(missile);
 350
 351         //setmodel (missile, "models/hook.md3"); // precision set below
 352         setsize (missile, '-3 -3 -3', '3 3 3');
 353         setorigin (missile, org);
 354
 355         missile.state = 0; // not latched onto anything
 356
 357         W_SetupProjVelocity_Explicit(missile, v_forward, v_up, autocvar_g_balance_grapplehook_speed_fly, 0, 0, 0, false);
 358
 359         missile.angles = vectoangles (missile.velocity);
 360         //missile.glow_color = 250; // 244, 250
 361         //missile.glow_size = 120;
 362         missile.touch = GrapplingHookTouch;
 363         missile.think = GrapplingHookThink;
 364         missile.nextthink = time;
 365
 366         missile.effects = /*EF_FULLBRIGHT | EF_ADDITIVE |*/ EF_LOWPRECISION;
 367
 368         missile.health = autocvar_g_balance_grapplehook_health;//120
 369         missile.event_damage = GrapplingHook_Damage;
 370         missile.takedamage = DAMAGE_AIM;
 371         missile.damageforcescale = 0;
 372         missile.damagedbycontents = (autocvar_g_balance_grapplehook_damagedbycontents);
 373
 374         missile.hook_start = missile.hook_end = missile.origin;
 375
 376         Net_LinkEntity(missile, false, 0, GrapplingHookSend);
 377 }
 378
 379 //  void GrapplingHookFrame()
 380 //  {
 381 //         // this function has been modified for Xonotic
 382 // -       if (self.BUTTON_HOOK && g_grappling_hook)
 383 //         {
 384 // -               if (!self.hook && self.hook_time <= time && !self.button6_pressed_before)
 385 // -                       if (timeoutStatus != 2) //only allow the player to fire the grappling hook if the game is not paused (timeout)
 386 // -                               FireGrapplingHook();
 387 //         }
 388 // -       else
 389 //         {
 390 //                 if (self.hook)
 391 //                         RemoveGrapplingHook(self);
 392 //         }
 393 // -       self.button6_pressed_before = self.BUTTON_HOOK;
 394 //         /*
 395 //         // if I have no hook or it's not pulling yet, make sure I'm not flying!
 396 //         if((self.hook == world || !self.hook.state) && self.movetype == MOVETYPE_FLY)
 397
 398 void GrapplingHookFrame()
 399 {
 400         if(g_grappling_hook && timeout_status != TIMEOUT_ACTIVE && self.weapon != WEP_HOOK)
 401         {
 402                 // offhand hook controls
 403                 if(self.BUTTON_HOOK)
 404                 {
 405                         if (!(self.hook || (self.hook_state & HOOK_WAITING_FOR_RELEASE)) && (time > self.hook_refire))
 406                         {
 407                                 self.hook_state |= HOOK_FIRING;
 408                                 self.hook_state |= HOOK_WAITING_FOR_RELEASE;
 409                         }
 410                 }
 411                 else
 412                 {
 413                         self.hook_state |= HOOK_REMOVING;
 414                         self.hook_state &= ~HOOK_WAITING_FOR_RELEASE;
 415                 }
 416
 417                 self.hook_state &= ~HOOK_RELEASING;
 418                 if(self.BUTTON_CROUCH)
 419                 {
 420                         self.hook_state &= ~HOOK_PULLING;
 421                         //self.hook_state |= HOOK_RELEASING;
 422                 }
 423                 else
 424                 {
 425                         self.hook_state |= HOOK_PULLING;
 426                         //self.hook_state &= ~HOOK_RELEASING;
 427                 }
 428         }
 429         else if(!g_grappling_hook && self.switchweapon != WEP_HOOK)
 430         {
 431                 if(self.BUTTON_HOOK && !self.hook_switchweapon)
 432                         W_SwitchWeapon(WEP_HOOK);
 433         }
 434         self.hook_switchweapon = self.BUTTON_HOOK;
 435
 436         if(!g_grappling_hook && self.weapon != WEP_HOOK)
 437         {
 438                 self.hook_state &= ~HOOK_FIRING;
 439                 self.hook_state |= HOOK_REMOVING;
 440         }
 441
 442         if (self.hook_state & HOOK_FIRING)
 443         {
 444                 if (self.hook)
 445                         RemoveGrapplingHook(self);
 446                 FireGrapplingHook();
 447                 self.hook_state &= ~HOOK_FIRING;
 448                 self.hook_refire = max(self.hook_refire, time + autocvar_g_balance_grapplehook_refire * W_WeaponRateFactor());
 449         }
 450         else if(self.hook_state & HOOK_REMOVING)
 451         {
 452                 if (self.hook)
 453                         RemoveGrapplingHook(self);
 454                 self.hook_state &= ~HOOK_REMOVING;
 455         }
 456
 457         /*
 458         // if I have no hook or it's not pulling yet, make sure I'm not flying!
 459         if((self.hook == world || !self.hook.state) && self.movetype == MOVETYPE_FLY)
 460         {
 461                 self.movetype = MOVETYPE_WALK;
 462         }
 463         if(self.impulse == GRAPHOOK_FIRE && self.hook_time <= time && g_grappling_hook)
 464         {
 465                 // fire hook
 466                 FireGrapplingHook();
 467                 return;
 468         }
 469         else if(self.hookimpulse == GRAPHOOK_RELEASE)
 470         {
 471                 // remove hook, reset movement type
 472                 RemoveGrapplingHook(self);
 473                 return;
 474         }
 475         */
 476         /*else // make sure the player's movetype is correct
 477         {
 478                 //if(self.hook == world && self.movetype == MOVETYPE_FLY)
 479                 if((self.hook == world || !self.hook.state) && self.movetype == MOVETYPE_FLY)
 480                 {
 481                         self.movetype = MOVETYPE_WALK;
 482                 }
 483         }*/
 484         // note: The hook entity does the actual pulling
 485 }
 486
 487 void GrappleHookInit()
 488 {
 489         if(g_grappling_hook)
 490         {
 491                 hook_shotorigin[0] = '8 8 -12';
 492                 hook_shotorigin[1] = '8 8 -12';
 493                 hook_shotorigin[2] = '8 8 -12';
 494                 hook_shotorigin[3] = '8 8 -12';
 495         }
 496         else
 497         {
 498                 WEP_ACTION(WEP_HOOK, WR_INIT);
 499                 hook_shotorigin[0] = shotorg_adjust_values(CL_Weapon_GetShotOrg(WEP_HOOK), false, false, 1);
 500                 hook_shotorigin[1] = shotorg_adjust_values(CL_Weapon_GetShotOrg(WEP_HOOK), false, false, 2);
 501                 hook_shotorigin[2] = shotorg_adjust_values(CL_Weapon_GetShotOrg(WEP_HOOK), false, false, 3);
 502                 hook_shotorigin[3] = shotorg_adjust_values(CL_Weapon_GetShotOrg(WEP_HOOK), false, false, 4);
 503         }
 504 }
 505
 506 void SetGrappleHookBindings()
 507 {
 508         // this function has been modified for Xonotic
 509         // don't remove these lines! old server or demos coud overwrite the new aliases
 510         stuffcmd(self, "alias +hook +button6\n");
 511         stuffcmd(self, "alias -hook -button6\n");
 512 }