main/cntrlcen.c

   1 /* $Id: cntrlcen.c,v 1.9 2003-04-03 07:15:43 btb Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 #ifdef HAVE_CONFIG_H
  16 #include <conf.h>
  17 #endif
  18
  19 #ifdef RCS
  20 static char rcsid[] = "$Id: cntrlcen.c,v 1.9 2003-04-03 07:15:43 btb Exp $";
  21 #endif
  22
  23 #ifdef WINDOWS
  24 #include "desw.h"
  25 #endif
  26
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <unistd.h>
  30
  31 #include "pstypes.h"
  32 #include "error.h"
  33 #include "mono.h"
  34
  35 #include "inferno.h"
  36 #include "cntrlcen.h"
  37 #include "game.h"
  38 #include "laser.h"
  39 #include "gameseq.h"
  40 #include "ai.h"
  41 #ifdef NETWORK
  42 #include "multi.h"
  43 #endif
  44 #include "wall.h"
  45 #include "object.h"
  46 #include "robot.h"
  47 #include "vclip.h"
  48 #include "fireball.h"
  49 #include "endlevel.h"
  50
  51 //@@vms_vector controlcen_gun_points[MAX_CONTROLCEN_GUNS];
  52 //@@vms_vector controlcen_gun_dirs[MAX_CONTROLCEN_GUNS];
  53
  54 reactor Reactors[MAX_REACTORS];
  55 int Num_reactors=0;
  56
  57 control_center_triggers ControlCenterTriggers;
  58
  59 int     N_controlcen_guns;
  60 int     Control_center_been_hit;
  61 int     Control_center_player_been_seen;
  62 int     Control_center_next_fire_time;
  63 int     Control_center_present;
  64
  65 vms_vector      Gun_pos[MAX_CONTROLCEN_GUNS], Gun_dir[MAX_CONTROLCEN_GUNS];
  66
  67 void do_countdown_frame();
  68
  69 //      -----------------------------------------------------------------------------
  70 //return the position & orientation of a gun on the control center object
  71 void calc_controlcen_gun_point(vms_vector *gun_point,vms_vector *gun_dir,object *obj,int gun_num)
  72 {
  73         reactor *reactor;
  74         vms_matrix m;
  75
  76         Assert(obj->type == OBJ_CNTRLCEN);
  77         Assert(obj->render_type==RT_POLYOBJ);
  78
  79         reactor = &Reactors[obj->id];
  80
  81         Assert(gun_num < reactor->n_guns);
  82
  83         //instance gun position & orientation
  84
  85         vm_copy_transpose_matrix(&m,&obj->orient);
  86
  87         vm_vec_rotate(gun_point,&reactor->gun_points[gun_num],&m);
  88         vm_vec_add2(gun_point,&obj->pos);
  89         vm_vec_rotate(gun_dir,&reactor->gun_dirs[gun_num],&m);
  90 }
  91
  92 //      -----------------------------------------------------------------------------
  93 //      Look at control center guns, find best one to fire at *objp.
  94 //      Return best gun number (one whose direction dotted with vector to player is largest).
  95 //      If best gun has negative dot, return -1, meaning no gun is good.
  96 int calc_best_gun(int num_guns, vms_vector *gun_pos, vms_vector *gun_dir, vms_vector *objpos)
  97 {
  98         int     i;
  99         fix     best_dot;
 100         int     best_gun;
 101
 102         best_dot = -F1_0*2;
 103         best_gun = -1;
 104
 105         for (i=0; i<num_guns; i++) {
 106                 fix                     dot;
 107                 vms_vector      gun_vec;
 108
 109                 vm_vec_sub(&gun_vec, objpos, &gun_pos[i]);
 110                 vm_vec_normalize_quick(&gun_vec);
 111                 dot = vm_vec_dot(&gun_dir[i], &gun_vec);
 112
 113                 if (dot > best_dot) {
 114                         best_dot = dot;
 115                         best_gun = i;
 116                 }
 117         }
 118
 119         Assert(best_gun != -1);         // Contact Mike.  This is impossible.  Or maybe you're getting an unnormalized vector somewhere.
 120
 121         if (best_dot < 0)
 122                 return -1;
 123         else
 124                 return best_gun;
 125
 126 }
 127
 128 extern fix Player_time_of_death;                //      object.c
 129
 130 int     Dead_controlcen_object_num=-1;
 131
 132 //how long to blow up on insane
 133 int Base_control_center_explosion_time=DEFAULT_CONTROL_CENTER_EXPLOSION_TIME;
 134
 135 int Control_center_destroyed = 0;
 136 fix Countdown_timer=0;
 137 int Countdown_seconds_left=0, Total_countdown_time=0;           //in whole seconds
 138
 139 int     Alan_pavlish_reactor_times[NDL] = {90, 60, 45, 35, 30};
 140
 141 //      -----------------------------------------------------------------------------
 142 //      Called every frame.  If control center been destroyed, then actually do something.
 143 void do_controlcen_dead_frame(void)
 144 {
 145         if ((Dead_controlcen_object_num != -1) && (Countdown_seconds_left > 0))
 146                 if (d_rand() < FrameTime*4)
 147                         create_small_fireball_on_object(&Objects[Dead_controlcen_object_num], F1_0, 1);
 148
 149         if (Control_center_destroyed && !Endlevel_sequence)
 150                 do_countdown_frame();
 151 }
 152
 153 #define COUNTDOWN_VOICE_TIME fl2f(12.75)
 154
 155 void do_countdown_frame()
 156 {
 157         fix     old_time;
 158         int     fc, div_scale;
 159
 160         if (!Control_center_destroyed)  return;
 161
 162         #if !defined(D2_OEM) && !defined(SHAREWARE)     // get countdown in OEM and SHAREWARE only
 163         //      On last level, we don't want a countdown.
 164         if ((Current_mission_num == Builtin_mission_num) && (Current_level_num == Last_level))
 165     {
 166      if (!(Game_mode & GM_MULTI))
 167            return;
 168           if (Game_mode & GM_MULTI_ROBOTS)
 169                 return;
 170     }
 171         #endif
 172
 173         //      Control center destroyed, rock the player's ship.
 174         fc = Countdown_seconds_left;
 175         if (fc > 16)
 176                 fc = 16;
 177
 178         //      At Trainee, decrease rocking of ship by 4x.
 179         div_scale = 1;
 180         if (Difficulty_level == 0)
 181                 div_scale = 4;
 182
 183         ConsoleObject->mtype.phys_info.rotvel.x += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 184         ConsoleObject->mtype.phys_info.rotvel.z += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 185         //      Hook in the rumble sound effect here.
 186
 187         old_time = Countdown_timer;
 188         Countdown_timer -= RealFrameTime;
 189         Countdown_seconds_left = f2i(Countdown_timer + F1_0*7/8);
 190
 191         if ( (old_time > COUNTDOWN_VOICE_TIME ) && (Countdown_timer <= COUNTDOWN_VOICE_TIME) )  {
 192                 digi_play_sample( SOUND_COUNTDOWN_13_SECS, F3_0 );
 193         }
 194         if ( f2i(old_time + F1_0*7/8) != Countdown_seconds_left )       {
 195                 if ( (Countdown_seconds_left>=0) && (Countdown_seconds_left<10) )
 196                         digi_play_sample( SOUND_COUNTDOWN_0_SECS+Countdown_seconds_left, F3_0 );
 197                 if ( Countdown_seconds_left==Total_countdown_time-1)
 198                         digi_play_sample( SOUND_COUNTDOWN_29_SECS, F3_0 );
 199         }
 200
 201         if (Countdown_timer > 0) {
 202                 fix size,old_size;
 203                 size = (i2f(Total_countdown_time)-Countdown_timer) / fl2f(0.65);
 204                 old_size = (i2f(Total_countdown_time)-old_time) / fl2f(0.65);
 205                 if (size != old_size && (Countdown_seconds_left < (Total_countdown_time-5) ))           {                       // Every 2 seconds!
 206                         //@@if (Dead_controlcen_object_num != -1) {
 207                         //@@    vms_vector vp;  //,v,c;
 208                         //@@    compute_segment_center(&vp, &Segments[Objects[Dead_controlcen_object_num].segnum]);
 209                         //@@    object_create_explosion( Objects[Dead_controlcen_object_num].segnum, &vp, size*10, VCLIP_SMALL_EXPLOSION);
 210                         //@@}
 211
 212                         digi_play_sample( SOUND_CONTROL_CENTER_WARNING_SIREN, F3_0 );
 213                 }
 214         }  else {
 215                 int flash_value;
 216
 217                 if (old_time > 0)
 218                         digi_play_sample( SOUND_MINE_BLEW_UP, F1_0 );
 219
 220                 flash_value = f2i(-Countdown_timer * (64 / 4)); // 4 seconds to total whiteness
 221                 PALETTE_FLASH_SET(flash_value,flash_value,flash_value);
 222
 223                 if (PaletteBlueAdd > 64 )       {
 224                 WINDOS(
 225                         dd_gr_set_current_canvas(NULL),
 226                         gr_set_current_canvas( NULL )
 227                 );
 228                 WINDOS(
 229                         dd_gr_clear_canvas(BM_XRGB(31,31,31)),
 230                         gr_clear_canvas(BM_XRGB(31,31,31))
 231                 );                                                                                                              //make screen all white to match palette effect
 232                         reset_cockpit();                                                                //force cockpit redraw next time
 233                         reset_palette_add();                                                    //restore palette for death message
 234                         //controlcen->MaxCapacity = Fuelcen_max_amount;
 235                         //gauge_message( "Control Center Reset" );
 236                         DoPlayerDead();         //kill_player();
 237                 }
 238         }
 239 }
 240
 241 //      -----------------------------------------------------------------------------
 242 //      Called when control center gets destroyed.
 243 //      This code is common to whether control center is implicitly imbedded in a boss,
 244 //      or is an object of its own.
 245 //      if objp == NULL that means the boss was the control center and don't set Dead_controlcen_object_num
 246 void do_controlcen_destroyed_stuff(object *objp)
 247 {
 248         int     i;
 249
 250    if ((Game_mode & GM_MULTI_ROBOTS) && Control_center_destroyed)
 251     return; // Don't allow resetting if control center and boss on same level
 252
 253         // Must toggle walls whether it is a boss or control center.
 254         for (i=0;i<ControlCenterTriggers.num_links;i++)
 255                 wall_toggle(&Segments[ControlCenterTriggers.seg[i]], ControlCenterTriggers.side[i]);
 256
 257         // And start the countdown stuff.
 258         Control_center_destroyed = 1;
 259
 260         //      If a secret level, delete secret.sgc to indicate that we can't return to our secret level.
 261         if (Current_level_num < 0) {
 262                 int     rval;
 263                 #ifndef MACINTOSH
 264                 rval = unlink("secret.sgc");
 265                 #else
 266                 rval = unlink(":Players:secret.sgc");
 267                 #endif
 268                 mprintf((0, "Deleting secret.sgc, return value = %i\n", rval));
 269         }
 270
 271         if (Base_control_center_explosion_time != DEFAULT_CONTROL_CENTER_EXPLOSION_TIME)
 272                 Total_countdown_time = Base_control_center_explosion_time + Base_control_center_explosion_time * (NDL-Difficulty_level-1)/2;
 273         else
 274                 Total_countdown_time = Alan_pavlish_reactor_times[Difficulty_level];
 275
 276         Countdown_timer = i2f(Total_countdown_time);
 277
 278         if (!Control_center_present || objp==NULL) {
 279                 //Assert(objp == NULL);
 280                 return;
 281         }
 282
 283         //Assert(objp != NULL);
 284
 285         Dead_controlcen_object_num = objp-Objects;
 286 }
 287
 288 int     Last_time_cc_vis_check = 0;
 289
 290 //      -----------------------------------------------------------------------------
 291 //do whatever this thing does in a frame
 292 void do_controlcen_frame(object *obj)
 293 {
 294         int                     best_gun_num;
 295
 296         //      If a boss level, then Control_center_present will be 0.
 297         if (!Control_center_present)
 298                 return;
 299
 300 #ifndef NDEBUG
 301         if (!Robot_firing_enabled || (Game_suspended & SUSP_ROBOTS))
 302                 return;
 303 #else
 304         if (!Robot_firing_enabled)
 305                 return;
 306 #endif
 307
 308         if (!(Control_center_been_hit || Control_center_player_been_seen)) {
 309                 if (!(FrameCount % 8)) {                //      Do every so often...
 310                         vms_vector      vec_to_player;
 311                         fix                     dist_to_player;
 312                         int                     i;
 313                         segment         *segp = &Segments[obj->segnum];
 314
 315                         // This is a hack.  Since the control center is not processed by
 316                         // ai_do_frame, it doesn't know to deal with cloaked dudes.  It
 317                         // seems to work in single-player mode because it is actually using
 318                         // the value of Believed_player_position that was set by the last
 319                         // person to go through ai_do_frame.  But since a no-robots game
 320                         // never goes through ai_do_frame, I'm making it so the control
 321                         // center can spot cloaked dudes.
 322
 323                         if (Game_mode & GM_MULTI)
 324                                 Believed_player_pos = Objects[Players[Player_num].objnum].pos;
 325
 326                         //      Hack for special control centers which are isolated and not reachable because the
 327                         //      real control center is inside the boss.
 328                         for (i=0; i<MAX_SIDES_PER_SEGMENT; i++)
 329                                 if (IS_CHILD(segp->children[i]))
 330                                         break;
 331                         if (i == MAX_SIDES_PER_SEGMENT)
 332                                 return;
 333
 334                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 335                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 336                         if (dist_to_player < F1_0*200) {
 337                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 338                                 Control_center_next_fire_time = 0;
 339                         }
 340                 }
 341
 342                 return;
 343         }
 344
 345         //      Periodically, make the reactor fall asleep if player not visible.
 346         if (Control_center_been_hit || Control_center_player_been_seen) {
 347                 if ((Last_time_cc_vis_check + F1_0*5 < GameTime) || (Last_time_cc_vis_check > GameTime)) {
 348                         vms_vector      vec_to_player;
 349                         fix                     dist_to_player;
 350
 351                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 352                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 353                         Last_time_cc_vis_check = GameTime;
 354                         if (dist_to_player < F1_0*120) {
 355                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 356                                 if (!Control_center_player_been_seen)
 357                                         Control_center_been_hit = 0;
 358                         }
 359                 }
 360
 361         }
 362
 363         if ((Control_center_next_fire_time < 0) && !(Player_is_dead && (GameTime > Player_time_of_death+F1_0*2))) {
 364                 if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED)
 365                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &Believed_player_pos);
 366                 else
 367                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &ConsoleObject->pos);
 368
 369                 if (best_gun_num != -1) {
 370                         int                     rand_prob, count;
 371                         vms_vector      vec_to_goal;
 372                         fix                     dist_to_player;
 373                         fix                     delta_fire_time;
 374
 375                         if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED) {
 376                                 vm_vec_sub(&vec_to_goal, &Believed_player_pos, &Gun_pos[best_gun_num]);
 377                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 378                         } else {
 379                                 vm_vec_sub(&vec_to_goal, &ConsoleObject->pos, &Gun_pos[best_gun_num]);
 380                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 381                         }
 382
 383                         if (dist_to_player > F1_0*300)
 384                         {
 385                                 Control_center_been_hit = 0;
 386                                 Control_center_player_been_seen = 0;
 387                                 return;
 388                         }
 389
 390                         #ifdef NETWORK
 391                         if (Game_mode & GM_MULTI)
 392                                 multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 393                         #endif
 394                         Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 1);
 395
 396                         //      some of time, based on level, fire another thing, not directly at player, so it might hit him if he's constantly moving.
 397                         rand_prob = F1_0/(abs(Current_level_num)/4+2);
 398                         count = 0;
 399                         while ((d_rand() > rand_prob) && (count < 4)) {
 400                                 vms_vector      randvec;
 401
 402                                 make_random_vector(&randvec);
 403                                 vm_vec_scale_add2(&vec_to_goal, &randvec, F1_0/6);
 404                                 vm_vec_normalize_quick(&vec_to_goal);
 405                                 #ifdef NETWORK
 406                                 if (Game_mode & GM_MULTI)
 407                                         multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 408                                 #endif
 409                                 Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 0);
 410                                 count++;
 411                         }
 412
 413                         delta_fire_time = (NDL - Difficulty_level) * F1_0/4;
 414                         if (Difficulty_level == 0)
 415                                 delta_fire_time += F1_0/2;
 416
 417                         if (Game_mode & GM_MULTI) // slow down rate of fire in multi player
 418                                 delta_fire_time *= 2;
 419
 420                         Control_center_next_fire_time = delta_fire_time;
 421
 422                 }
 423         } else
 424                 Control_center_next_fire_time -= FrameTime;
 425
 426 }
 427
 428 int Reactor_strength=-1;                //-1 mean not set by designer
 429
 430 //      -----------------------------------------------------------------------------
 431 //      This must be called at the start of each level.
 432 //      If this level contains a boss and mode != multiplayer, don't do control center stuff.  (Ghost out control center object.)
 433 //      If this level contains a boss and mode == multiplayer, do control center stuff.
 434 void init_controlcen_for_level(void)
 435 {
 436         int             i;
 437         object  *objp;
 438         int             cntrlcen_objnum=-1, boss_objnum=-1;
 439
 440         for (i=0; i<=Highest_object_index; i++) {
 441                 objp = &Objects[i];
 442                 if (objp->type == OBJ_CNTRLCEN)
 443                 {
 444                         if (cntrlcen_objnum != -1)
 445                                 mprintf((1, "Warning: Two or more control centers including %i and %i\n", i, cntrlcen_objnum));
 446                         else
 447                                 cntrlcen_objnum = i;
 448                 }
 449
 450                 if ((objp->type == OBJ_ROBOT) && (Robot_info[objp->id].boss_flag)) {
 451 //                      mprintf((0, "Found boss robot %d.\n", objp->id));
 452                         if (boss_objnum != -1)
 453                                 mprintf((1, "Warning: Two or more bosses including %i and %i\n", i, boss_objnum));
 454                         else
 455                                 boss_objnum = i;
 456                 }
 457         }
 458
 459 #ifndef NDEBUG
 460         if (cntrlcen_objnum == -1) {
 461                 mprintf((1, "Warning: No control center.\n"));
 462                 return;
 463         }
 464 #endif
 465
 466         if ( (boss_objnum != -1) && !((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_ROBOTS)) ) {
 467                 if (cntrlcen_objnum != -1) {
 468 //                      mprintf((0, "Ghosting control center\n"));
 469                         Objects[cntrlcen_objnum].type = OBJ_GHOST;
 470                         Objects[cntrlcen_objnum].render_type = RT_NONE;
 471                         Control_center_present = 0;
 472                 }
 473         } else {
 474                 //      Compute all gun positions.
 475                 objp = &Objects[cntrlcen_objnum];
 476                 N_controlcen_guns = Reactors[objp->id].n_guns;
 477                 for (i=0; i<N_controlcen_guns; i++)
 478                         calc_controlcen_gun_point(&Gun_pos[i], &Gun_dir[i], objp, i);
 479                 Control_center_present = 1;
 480
 481                 if (Reactor_strength == -1) {           //use old defaults
 482                         //      Boost control center strength at higher levels.
 483                         if (Current_level_num >= 0)
 484                                 objp->shields = F1_0*200 + (F1_0*200/4) * Current_level_num;
 485                         else
 486                                 objp->shields = F1_0*200 - Current_level_num*F1_0*150;
 487                 }
 488                 else {
 489                         objp->shields = i2f(Reactor_strength);
 490                 }
 491
 492         }
 493
 494         //      Say the control center has not yet been hit.
 495         Control_center_been_hit = 0;
 496         Control_center_player_been_seen = 0;
 497         Control_center_next_fire_time = 0;
 498
 499         Dead_controlcen_object_num = -1;
 500 }
 501
 502 void special_reactor_stuff(void)
 503 {
 504         mprintf((0, "Mucking with reactor countdown time.\n"));
 505         if (Control_center_destroyed) {
 506                 Countdown_timer += i2f(Base_control_center_explosion_time + (NDL-1-Difficulty_level)*Base_control_center_explosion_time/(NDL-1));
 507                 Total_countdown_time = f2i(Countdown_timer)+2;  //      Will prevent "Self destruct sequence activated" message from replaying.
 508         }
 509 }
 510
 511 #ifndef FAST_FILE_IO
 512 /*
 513  * reads n reactor structs from a CFILE
 514  */
 515 extern int reactor_read_n(reactor *r, int n, CFILE *fp)
 516 {
 517         int i, j;
 518
 519         for (i = 0; i < n; i++) {
 520                 r[i].model_num = cfile_read_int(fp);
 521                 r[i].n_guns = cfile_read_int(fp);
 522                 for (j = 0; j < MAX_CONTROLCEN_GUNS; j++)
 523                         cfile_read_vector(&(r[i].gun_points[j]), fp);
 524                 for (j = 0; j < MAX_CONTROLCEN_GUNS; j++)
 525                         cfile_read_vector(&(r[i].gun_dirs[j]), fp);
 526         }
 527         return i;
 528 }
 529
 530 /*
 531  * reads a control_center_triggers structure from a CFILE
 532  */
 533 extern int control_center_triggers_read_n(control_center_triggers *cct, int n, CFILE *fp)
 534 {
 535         int i, j;
 536
 537         for (i = 0; i < n; i++)
 538         {
 539                 cct->num_links = cfile_read_short(fp);
 540                 for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 541                         cct->seg[j] = cfile_read_short(fp);
 542                 for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 543                         cct->side[j] = cfile_read_short(fp);
 544         }
 545         return i;
 546 }
 547 #endif