main/cntrlcen.c

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14 #ifdef HAVE_CONFIG_H
  15 #include <conf.h>
  16 #endif
  17
  18 #ifdef RCS
  19 static char rcsid[] = "$Id: cntrlcen.c,v 1.2 2001-01-31 15:17:49 bradleyb Exp $";
  20 #endif
  21
  22 #ifdef WINDOWS
  23 #include "desw.h"
  24 #endif
  25
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <unistd.h>
  29
  30 #include "pstypes.h"
  31 #include "error.h"
  32 #include "mono.h"
  33
  34 #include "inferno.h"
  35 #include "cntrlcen.h"
  36 #include "game.h"
  37 #include "laser.h"
  38 #include "gameseq.h"
  39 #include "ai.h"
  40 #include "multi.h"
  41 #include "wall.h"
  42 #include "object.h"
  43 #include "robot.h"
  44 #include "vclip.h"
  45 #include "fireball.h"
  46 #include "endlevel.h"
  47
  48 //@@vms_vector controlcen_gun_points[MAX_CONTROLCEN_GUNS];
  49 //@@vms_vector controlcen_gun_dirs[MAX_CONTROLCEN_GUNS];
  50
  51 reactor Reactors[MAX_REACTORS];
  52 int Num_reactors=0;
  53
  54 control_center_triggers ControlCenterTriggers;
  55
  56 int     N_controlcen_guns;
  57 int     Control_center_been_hit;
  58 int     Control_center_player_been_seen;
  59 int     Control_center_next_fire_time;
  60 int     Control_center_present;
  61
  62 vms_vector      Gun_pos[MAX_CONTROLCEN_GUNS], Gun_dir[MAX_CONTROLCEN_GUNS];
  63
  64 void do_countdown_frame();
  65
  66 //      -----------------------------------------------------------------------------
  67 //return the position & orientation of a gun on the control center object
  68 void calc_controlcen_gun_point(vms_vector *gun_point,vms_vector *gun_dir,object *obj,int gun_num)
  69 {
  70         reactor *reactor;
  71         vms_matrix m;
  72
  73         Assert(obj->type == OBJ_CNTRLCEN);
  74         Assert(obj->render_type==RT_POLYOBJ);
  75
  76         reactor = &Reactors[obj->id];
  77
  78         Assert(gun_num < reactor->n_guns);
  79
  80         //instance gun position & orientation
  81
  82         vm_copy_transpose_matrix(&m,&obj->orient);
  83
  84         vm_vec_rotate(gun_point,&reactor->gun_points[gun_num],&m);
  85         vm_vec_add2(gun_point,&obj->pos);
  86         vm_vec_rotate(gun_dir,&reactor->gun_dirs[gun_num],&m);
  87 }
  88
  89 //      -----------------------------------------------------------------------------
  90 //      Look at control center guns, find best one to fire at *objp.
  91 //      Return best gun number (one whose direction dotted with vector to player is largest).
  92 //      If best gun has negative dot, return -1, meaning no gun is good.
  93 int calc_best_gun(int num_guns, vms_vector *gun_pos, vms_vector *gun_dir, vms_vector *objpos)
  94 {
  95         int     i;
  96         fix     best_dot;
  97         int     best_gun;
  98
  99         best_dot = -F1_0*2;
 100         best_gun = -1;
 101
 102         for (i=0; i<num_guns; i++) {
 103                 fix                     dot;
 104                 vms_vector      gun_vec;
 105
 106                 vm_vec_sub(&gun_vec, objpos, &gun_pos[i]);
 107                 vm_vec_normalize_quick(&gun_vec);
 108                 dot = vm_vec_dot(&gun_dir[i], &gun_vec);
 109
 110                 if (dot > best_dot) {
 111                         best_dot = dot;
 112                         best_gun = i;
 113                 }
 114         }
 115
 116         Assert(best_gun != -1);         // Contact Mike.  This is impossible.  Or maybe you're getting an unnormalized vector somewhere.
 117
 118         if (best_dot < 0)
 119                 return -1;
 120         else
 121                 return best_gun;
 122
 123 }
 124
 125 extern fix Player_time_of_death;                //      object.c
 126
 127 int     Dead_controlcen_object_num=-1;
 128
 129 //how long to blow up on insane
 130 int Base_control_center_explosion_time=DEFAULT_CONTROL_CENTER_EXPLOSION_TIME;
 131
 132 int Control_center_destroyed = 0;
 133 fix Countdown_timer=0;
 134 int Countdown_seconds_left=0, Total_countdown_time=0;           //in whole seconds
 135
 136 int     Alan_pavlish_reactor_times[NDL] = {90, 60, 45, 35, 30};
 137
 138 //      -----------------------------------------------------------------------------
 139 //      Called every frame.  If control center been destroyed, then actually do something.
 140 void do_controlcen_dead_frame(void)
 141 {
 142         if ((Dead_controlcen_object_num != -1) && (Countdown_seconds_left > 0))
 143                 if (d_rand() < FrameTime*4)
 144                         create_small_fireball_on_object(&Objects[Dead_controlcen_object_num], F1_0, 1);
 145
 146         if (Control_center_destroyed && !Endlevel_sequence)
 147                 do_countdown_frame();
 148 }
 149
 150 #define COUNTDOWN_VOICE_TIME fl2f(12.75)
 151
 152 void do_countdown_frame()
 153 {
 154         fix     old_time;
 155         int     fc, div_scale;
 156
 157         if (!Control_center_destroyed)  return;
 158
 159         #if !defined(D2_OEM) && !defined(SHAREWARE)     // get countdown in OEM and SHAREWARE only
 160         //      On last level, we don't want a countdown.
 161         if ((Current_mission_num == 0) && (Current_level_num == Last_level))
 162     {
 163      if (!(Game_mode & GM_MULTI))
 164            return;
 165           if (Game_mode & GM_MULTI_ROBOTS)
 166                 return;
 167     }
 168         #endif
 169
 170         //      Control center destroyed, rock the player's ship.
 171         fc = Countdown_seconds_left;
 172         if (fc > 16)
 173                 fc = 16;
 174
 175         //      At Trainee, decrease rocking of ship by 4x.
 176         div_scale = 1;
 177         if (Difficulty_level == 0)
 178                 div_scale = 4;
 179
 180         ConsoleObject->mtype.phys_info.rotvel.x += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 181         ConsoleObject->mtype.phys_info.rotvel.z += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 182         //      Hook in the rumble sound effect here.
 183
 184         old_time = Countdown_timer;
 185         Countdown_timer -= RealFrameTime;
 186         Countdown_seconds_left = f2i(Countdown_timer + F1_0*7/8);
 187
 188         if ( (old_time > COUNTDOWN_VOICE_TIME ) && (Countdown_timer <= COUNTDOWN_VOICE_TIME) )  {
 189                 digi_play_sample( SOUND_COUNTDOWN_13_SECS, F3_0 );
 190         }
 191         if ( f2i(old_time + F1_0*7/8) != Countdown_seconds_left )       {
 192                 if ( (Countdown_seconds_left>=0) && (Countdown_seconds_left<10) )
 193                         digi_play_sample( SOUND_COUNTDOWN_0_SECS+Countdown_seconds_left, F3_0 );
 194                 if ( Countdown_seconds_left==Total_countdown_time-1)
 195                         digi_play_sample( SOUND_COUNTDOWN_29_SECS, F3_0 );
 196         }
 197
 198         if (Countdown_timer > 0) {
 199                 fix size,old_size;
 200                 size = (i2f(Total_countdown_time)-Countdown_timer) / fl2f(0.65);
 201                 old_size = (i2f(Total_countdown_time)-old_time) / fl2f(0.65);
 202                 if (size != old_size && (Countdown_seconds_left < (Total_countdown_time-5) ))           {                       // Every 2 seconds!
 203                         //@@if (Dead_controlcen_object_num != -1) {
 204                         //@@    vms_vector vp;  //,v,c;
 205                         //@@    compute_segment_center(&vp, &Segments[Objects[Dead_controlcen_object_num].segnum]);
 206                         //@@    object_create_explosion( Objects[Dead_controlcen_object_num].segnum, &vp, size*10, VCLIP_SMALL_EXPLOSION);
 207                         //@@}
 208
 209                         digi_play_sample( SOUND_CONTROL_CENTER_WARNING_SIREN, F3_0 );
 210                 }
 211         }  else {
 212                 int flash_value;
 213
 214                 if (old_time > 0)
 215                         digi_play_sample( SOUND_MINE_BLEW_UP, F1_0 );
 216
 217                 flash_value = f2i(-Countdown_timer * (64 / 4)); // 4 seconds to total whiteness
 218                 PALETTE_FLASH_SET(flash_value,flash_value,flash_value);
 219
 220                 if (PaletteBlueAdd > 64 )       {
 221                 WINDOS(
 222                         dd_gr_set_current_canvas(NULL),
 223                         gr_set_current_canvas( NULL )
 224                 );
 225                 WINDOS(
 226                         dd_gr_clear_canvas(BM_XRGB(31,31,31)),
 227                         gr_clear_canvas(BM_XRGB(31,31,31))
 228                 );                                                                                                              //make screen all white to match palette effect
 229                         reset_cockpit();                                                                //force cockpit redraw next time
 230                         reset_palette_add();                                                    //restore palette for death message
 231                         //controlcen->MaxCapacity = Fuelcen_max_amount;
 232                         //gauge_message( "Control Center Reset" );
 233                         DoPlayerDead();         //kill_player();
 234                 }
 235         }
 236 }
 237
 238 //      -----------------------------------------------------------------------------
 239 //      Called when control center gets destroyed.
 240 //      This code is common to whether control center is implicitly imbedded in a boss,
 241 //      or is an object of its own.
 242 //      if objp == NULL that means the boss was the control center and don't set Dead_controlcen_object_num
 243 void do_controlcen_destroyed_stuff(object *objp)
 244 {
 245         int     i;
 246
 247    if ((Game_mode & GM_MULTI_ROBOTS) && Control_center_destroyed)
 248     return; // Don't allow resetting if control center and boss on same level
 249
 250         // Must toggle walls whether it is a boss or control center.
 251         for (i=0;i<ControlCenterTriggers.num_links;i++)
 252                 wall_toggle(&Segments[ControlCenterTriggers.seg[i]], ControlCenterTriggers.side[i]);
 253
 254         // And start the countdown stuff.
 255         Control_center_destroyed = 1;
 256
 257         //      If a secret level, delete secret.sgc to indicate that we can't return to our secret level.
 258         if (Current_level_num < 0) {
 259                 int     rval;
 260                 #ifndef MACINTOSH
 261                 rval = unlink("secret.sgc");
 262                 #else
 263                 rval = unlink(":Players:secret.sgc");
 264                 #endif
 265                 mprintf((0, "Deleting secret.sgc, return value = %i\n", rval));
 266         }
 267
 268         if (Base_control_center_explosion_time != DEFAULT_CONTROL_CENTER_EXPLOSION_TIME)
 269                 Total_countdown_time = Base_control_center_explosion_time + Base_control_center_explosion_time * (NDL-Difficulty_level-1)/2;
 270         else
 271                 Total_countdown_time = Alan_pavlish_reactor_times[Difficulty_level];
 272
 273         Countdown_timer = i2f(Total_countdown_time);
 274
 275         if (!Control_center_present || objp==NULL) {
 276                 //Assert(objp == NULL);
 277                 return;
 278         }
 279
 280         //Assert(objp != NULL);
 281
 282         Dead_controlcen_object_num = objp-Objects;
 283 }
 284
 285 int     Last_time_cc_vis_check = 0;
 286
 287 //      -----------------------------------------------------------------------------
 288 //do whatever this thing does in a frame
 289 void do_controlcen_frame(object *obj)
 290 {
 291         int                     best_gun_num;
 292
 293         //      If a boss level, then Control_center_present will be 0.
 294         if (!Control_center_present)
 295                 return;
 296
 297 #ifndef NDEBUG
 298         if (!Robot_firing_enabled || (Game_suspended & SUSP_ROBOTS))
 299                 return;
 300 #else
 301         if (!Robot_firing_enabled)
 302                 return;
 303 #endif
 304
 305         if (!(Control_center_been_hit || Control_center_player_been_seen)) {
 306                 if (!(FrameCount % 8)) {                //      Do every so often...
 307                         vms_vector      vec_to_player;
 308                         fix                     dist_to_player;
 309                         int                     i;
 310                         segment         *segp = &Segments[obj->segnum];
 311
 312                         // This is a hack.  Since the control center is not processed by
 313                         // ai_do_frame, it doesn't know to deal with cloaked dudes.  It
 314                         // seems to work in single-player mode because it is actually using
 315                         // the value of Believed_player_position that was set by the last
 316                         // person to go through ai_do_frame.  But since a no-robots game
 317                         // never goes through ai_do_frame, I'm making it so the control
 318                         // center can spot cloaked dudes.
 319
 320                         if (Game_mode & GM_MULTI)
 321                                 Believed_player_pos = Objects[Players[Player_num].objnum].pos;
 322
 323                         //      Hack for special control centers which are isolated and not reachable because the
 324                         //      real control center is inside the boss.
 325                         for (i=0; i<MAX_SIDES_PER_SEGMENT; i++)
 326                                 if (IS_CHILD(segp->children[i]))
 327                                         break;
 328                         if (i == MAX_SIDES_PER_SEGMENT)
 329                                 return;
 330
 331                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 332                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 333                         if (dist_to_player < F1_0*200) {
 334                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 335                                 Control_center_next_fire_time = 0;
 336                         }
 337                 }
 338
 339                 return;
 340         }
 341
 342         //      Periodically, make the reactor fall asleep if player not visible.
 343         if (Control_center_been_hit || Control_center_player_been_seen) {
 344                 if ((Last_time_cc_vis_check + F1_0*5 < GameTime) || (Last_time_cc_vis_check > GameTime)) {
 345                         vms_vector      vec_to_player;
 346                         fix                     dist_to_player;
 347
 348                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 349                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 350                         Last_time_cc_vis_check = GameTime;
 351                         if (dist_to_player < F1_0*120) {
 352                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 353                                 if (!Control_center_player_been_seen)
 354                                         Control_center_been_hit = 0;
 355                         }
 356                 }
 357
 358         }
 359
 360         if ((Control_center_next_fire_time < 0) && !(Player_is_dead && (GameTime > Player_time_of_death+F1_0*2))) {
 361                 if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED)
 362                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &Believed_player_pos);
 363                 else
 364                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &ConsoleObject->pos);
 365
 366                 if (best_gun_num != -1) {
 367                         int                     rand_prob, count;
 368                         vms_vector      vec_to_goal;
 369                         fix                     dist_to_player;
 370                         fix                     delta_fire_time;
 371
 372                         if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED) {
 373                                 vm_vec_sub(&vec_to_goal, &Believed_player_pos, &Gun_pos[best_gun_num]);
 374                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 375                         } else {
 376                                 vm_vec_sub(&vec_to_goal, &ConsoleObject->pos, &Gun_pos[best_gun_num]);
 377                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 378                         }
 379
 380                         if (dist_to_player > F1_0*300)
 381                         {
 382                                 Control_center_been_hit = 0;
 383                                 Control_center_player_been_seen = 0;
 384                                 return;
 385                         }
 386
 387                         #ifdef NETWORK
 388                         if (Game_mode & GM_MULTI)
 389                                 multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 390                         #endif
 391                         Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 1);
 392
 393                         //      some of time, based on level, fire another thing, not directly at player, so it might hit him if he's constantly moving.
 394                         rand_prob = F1_0/(abs(Current_level_num)/4+2);
 395                         count = 0;
 396                         while ((d_rand() > rand_prob) && (count < 4)) {
 397                                 vms_vector      randvec;
 398
 399                                 make_random_vector(&randvec);
 400                                 vm_vec_scale_add2(&vec_to_goal, &randvec, F1_0/6);
 401                                 vm_vec_normalize_quick(&vec_to_goal);
 402                                 #ifdef NETWORK
 403                                 if (Game_mode & GM_MULTI)
 404                                         multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 405                                 #endif
 406                                 Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 0);
 407                                 count++;
 408                         }
 409
 410                         delta_fire_time = (NDL - Difficulty_level) * F1_0/4;
 411                         if (Difficulty_level == 0)
 412                                 delta_fire_time += F1_0/2;
 413
 414                         if (Game_mode & GM_MULTI) // slow down rate of fire in multi player
 415                                 delta_fire_time *= 2;
 416
 417                         Control_center_next_fire_time = delta_fire_time;
 418
 419                 }
 420         } else
 421                 Control_center_next_fire_time -= FrameTime;
 422
 423 }
 424
 425 int Reactor_strength=-1;                //-1 mean not set by designer
 426
 427 //      -----------------------------------------------------------------------------
 428 //      This must be called at the start of each level.
 429 //      If this level contains a boss and mode != multiplayer, don't do control center stuff.  (Ghost out control center object.)
 430 //      If this level contains a boss and mode == multiplayer, do control center stuff.
 431 void init_controlcen_for_level(void)
 432 {
 433         int             i;
 434         object  *objp;
 435         int             cntrlcen_objnum=-1, boss_objnum=-1;
 436
 437         for (i=0; i<=Highest_object_index; i++) {
 438                 objp = &Objects[i];
 439                 if (objp->type == OBJ_CNTRLCEN)
 440                 {
 441                         if (cntrlcen_objnum != -1)
 442                                 mprintf((1, "Warning: Two or more control centers including %i and %i\n", i, cntrlcen_objnum));
 443                         else
 444                                 cntrlcen_objnum = i;
 445                 }
 446
 447                 if ((objp->type == OBJ_ROBOT) && (Robot_info[objp->id].boss_flag)) {
 448 //                      mprintf((0, "Found boss robot %d.\n", objp->id));
 449                         if (boss_objnum != -1)
 450                                 mprintf((1, "Warning: Two or more bosses including %i and %i\n", i, boss_objnum));
 451                         else
 452                                 boss_objnum = i;
 453                 }
 454         }
 455
 456 #ifndef NDEBUG
 457         if (cntrlcen_objnum == -1) {
 458                 mprintf((1, "Warning: No control center.\n"));
 459                 return;
 460         }
 461 #endif
 462
 463         if ( (boss_objnum != -1) && !((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_ROBOTS)) ) {
 464                 if (cntrlcen_objnum != -1) {
 465 //                      mprintf((0, "Ghosting control center\n"));
 466                         Objects[cntrlcen_objnum].type = OBJ_GHOST;
 467                         Objects[cntrlcen_objnum].render_type = RT_NONE;
 468                         Control_center_present = 0;
 469                 }
 470         } else {
 471                 //      Compute all gun positions.
 472                 objp = &Objects[cntrlcen_objnum];
 473                 N_controlcen_guns = Reactors[objp->id].n_guns;
 474                 for (i=0; i<N_controlcen_guns; i++)
 475                         calc_controlcen_gun_point(&Gun_pos[i], &Gun_dir[i], objp, i);
 476                 Control_center_present = 1;
 477
 478                 if (Reactor_strength == -1) {           //use old defaults
 479                         //      Boost control center strength at higher levels.
 480                         if (Current_level_num >= 0)
 481                                 objp->shields = F1_0*200 + (F1_0*200/4) * Current_level_num;
 482                         else
 483                                 objp->shields = F1_0*200 - Current_level_num*F1_0*150;
 484                 }
 485                 else {
 486                         objp->shields = i2f(Reactor_strength);
 487                 }
 488
 489         }
 490
 491         //      Say the control center has not yet been hit.
 492         Control_center_been_hit = 0;
 493         Control_center_player_been_seen = 0;
 494         Control_center_next_fire_time = 0;
 495
 496         Dead_controlcen_object_num = -1;
 497 }
 498
 499 void special_reactor_stuff(void)
 500 {
 501         mprintf((0, "Mucking with reactor countdown time.\n"));
 502         if (Control_center_destroyed) {
 503                 Countdown_timer += i2f(Base_control_center_explosion_time + (NDL-1-Difficulty_level)*Base_control_center_explosion_time/(NDL-1));
 504                 Total_countdown_time = f2i(Countdown_timer)+2;  //      Will prevent "Self destruct sequence activated" message from replaying.
 505         }
 506 }
 507