main/endlevel.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: endlevel.c,v 1.3 2001-10-25 02:15:56 bradleyb Exp $";
  20 #endif
  21
  22 //#define SLEW_ON 1
  23
  24 //#define _MARK_ON
  25
  26 #include <stdlib.h>
  27
  28
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #include "fix.h"
  33 #include "vecmat.h"
  34 #include "gr.h"
  35 #include "3d.h"
  36 #include "error.h"
  37 #include "palette.h"
  38 #include "iff.h"
  39 #include "mono.h"
  40 #include "texmap.h"
  41 #include "fvi.h"
  42 #include "u_mem.h"
  43 #include "sounds.h"
  44
  45 #include "inferno.h"
  46 #include "endlevel.h"
  47 #include "object.h"
  48 #include "game.h"
  49 #include "screens.h"
  50 #include "gauges.h"
  51 #include "wall.h"
  52 #include "terrain.h"
  53 #include "polyobj.h"
  54 #include "bm.h"
  55 #include "gameseq.h"
  56 #include "newdemo.h"
  57 #include "multi.h"
  58 #include "vclip.h"
  59 #include "fireball.h"
  60 #ifdef NETWORK
  61 #include "network.h"
  62 #endif
  63 #include "text.h"
  64 #include "digi.h"
  65 #include "cfile.h"
  66 #include "compbit.h"
  67 #include "songs.h"
  68 #include "movie.h"
  69 #include "render.h"
  70
  71 typedef struct flythrough_data {
  72         object          *obj;
  73         vms_angvec      angles;                 //orientation in angles
  74         vms_vector      step;                           //how far in a second
  75         vms_vector      angstep;                        //rotation per second
  76         fix                     speed;                  //how fast object is moving
  77         vms_vector      headvec;                        //where we want to be pointing
  78         int                     first_time;             //flag for if first time through
  79         fix                     offset_frac;    //how far off-center as portion of way
  80         fix                     offset_dist;    //how far currently off-center
  81 } flythrough_data;
  82
  83 //endlevel sequence states
  84
  85 #define EL_OFF                          0               //not in endlevel
  86 #define EL_FLYTHROUGH   1               //auto-flythrough in tunnel
  87 #define EL_LOOKBACK             2               //looking back at player
  88 #define EL_OUTSIDE              3               //flying outside for a while
  89 #define EL_STOPPED              4               //stopped, watching explosion
  90 #define EL_PANNING              5               //panning around, watching player
  91 #define EL_CHASING              6               //chasing player to station
  92
  93 #define SHORT_SEQUENCE  1               //if defined, end sequnce when panning starts
  94 //#define STATION_ENABLED       1               //if defined, load & use space station model
  95
  96 int Endlevel_sequence = 0;
  97
  98 extern fix player_speed;
  99
 100 int transition_segnum,exit_segnum;
 101
 102 object *endlevel_camera;
 103
 104 #define FLY_SPEED i2f(50)
 105
 106 void start_endlevel_flythrough(int n,object *obj,fix speed);
 107
 108 #ifdef D2_OEM
 109 char movie_table[] =    {       'a','a','a','a','d','d','d','d' };
 110 #else
 111 char movie_table[] =    {       'a','b','c',
 112                                                 #ifndef SHAREWARE
 113                                                         'a',
 114                                                         'd','f','d','f',
 115                                                         'g','h','i','g',
 116                                                         'j','k','l','j',
 117                                                         'm','o','m','o',
 118                                                         'p','q','p','q'
 119                                                 #endif
 120                                         };
 121 #endif
 122
 123 #define N_MOVIES (sizeof(movie_table) / sizeof(*movie_table))
 124
 125 #ifndef SHAREWARE
 126 #ifdef D2_OEM
 127 char movie_table_secret[] = {'a','d'};
 128 #else
 129 char movie_table_secret[] = {'a','d','g','j','m','p'};
 130 #endif
 131 #define N_MOVIES_SECRET (sizeof(movie_table_secret) / sizeof(*movie_table_secret))
 132 #else
 133 #define N_MOVIES_SECRET 0
 134 #endif
 135
 136
 137 #define FLY_ACCEL i2f(5)
 138
 139 fix cur_fly_speed,desired_fly_speed;
 140
 141 extern int matt_find_connect_side(int seg0,int seg1);
 142
 143 grs_bitmap *satellite_bitmap,*station_bitmap,*terrain_bitmap;   //!!*exit_bitmap,
 144 vms_vector satellite_pos,satellite_upvec;
 145 //!!grs_bitmap **exit_bitmap_list[1];
 146 int station_modelnum,exit_modelnum,destroyed_exit_modelnum;
 147
 148 vms_vector station_pos = {0xf8c4<<10,0x3c1c<<12,0x372<<10};
 149
 150 #ifdef STATION_ENABLED
 151 grs_bitmap *station_bitmap;
 152 grs_bitmap **station_bitmap_list[1];
 153 int station_modelnum;
 154 #endif
 155
 156 vms_vector mine_exit_point;
 157 vms_vector mine_ground_exit_point;
 158 vms_vector mine_side_exit_point;
 159 vms_matrix mine_exit_orient;
 160
 161 int outside_mine;
 162
 163 void start_endlevel_flythrough(int n,object *obj,fix speed);
 164
 165 grs_bitmap terrain_bm_instance;
 166 grs_bitmap satellite_bm_instance;
 167
 168 //find delta between two angles
 169 fixang delta_ang(fixang a,fixang b)
 170 {
 171         fixang delta0,delta1;
 172
 173         return (abs(delta0 = a - b) < abs(delta1 = b - a)) ? delta0 : delta1;
 174
 175 }
 176
 177 //return though which side of seg0 is seg1
 178 int matt_find_connect_side(int seg0,int seg1)
 179 {
 180         segment *Seg=&Segments[seg0];
 181         int i;
 182
 183         for (i=MAX_SIDES_PER_SEGMENT;i--;) if (Seg->children[i]==seg1) return i;
 184
 185         return -1;
 186 }
 187
 188 extern int Kmatrix_nomovie_message;
 189
 190 #if defined(D2_OEM) || defined(COMPILATION)
 191 #define MOVIE_REQUIRED 0
 192 #else
 193 #define MOVIE_REQUIRED 1
 194 #endif
 195
 196 //returns movie played status.  see movie.h
 197 int start_endlevel_movie()
 198 {
 199         char movie_name[] = "esa.mve";
 200    int r;
 201         ubyte save_pal[768];
 202
 203         Assert(Current_mission_num == 0);               //only play movie for built-in mission
 204
 205         Assert(N_MOVIES >= Last_level);
 206         Assert(N_MOVIES_SECRET >= -Last_secret_level);
 207
 208         #ifndef D2_OEM
 209         if (Current_level_num == Last_level)
 210                 return 1;       //don't play movie
 211         #endif
 212
 213         if (Current_level_num > 0)
 214                 movie_name[2] = movie_table[Current_level_num-1];
 215         else {
 216                 #ifndef SHAREWARE
 217                         return 0;               //no escapes for secret level
 218                 #else
 219                         Error("Invalid level number <%d>",Current_level_num);
 220                 #endif
 221         }
 222
 223         memcpy(save_pal,gr_palette,768);
 224
 225         #ifndef SHAREWARE
 226                 r=PlayMovie(movie_name,(Game_mode & GM_MULTI)?0:MOVIE_REQUIRED);
 227         #else
 228                 return  0;      // movie not played for shareware
 229         #endif
 230
 231         if (Newdemo_state == ND_STATE_PLAYBACK) {
 232                 set_screen_mode(SCREEN_GAME);
 233                 memcpy(gr_palette,save_pal,768);
 234         }
 235
 236 #ifdef NETWORK
 237    if (r==MOVIE_NOT_PLAYED && (Game_mode & GM_MULTI))
 238           Kmatrix_nomovie_message=1;
 239         else
 240           Kmatrix_nomovie_message=0;
 241 #endif
 242
 243         return (r);
 244
 245 }
 246
 247 #ifdef SHAREWARE
 248 void
 249 free_endlevel_data()
 250 {
 251         if (terrain_bm_instance.bm_data)
 252                 d_free(terrain_bm_instance.bm_data);
 253
 254         if (satellite_bm_instance.bm_data)
 255                 d_free(satellite_bm_instance.bm_data);
 256 }
 257
 258 init_endlevel()
 259 {
 260         //##satellite_bitmap = bm_load("earth.bbm");
 261         //##terrain_bitmap = bm_load("moon.bbm");
 262         //##
 263         //##load_terrain("matt5b.bbm");         //load bitmap as height array
 264         //##//load_terrain("ttest2.bbm");               //load bitmap as height array
 265
 266         #ifdef STATION_ENABLED
 267         station_bitmap = bm_load("steel3.bbm");
 268         station_bitmap_list[0] = &station_bitmap;
 269
 270         station_modelnum = load_polygon_model("station.pof",1,station_bitmap_list,NULL);
 271         #endif
 272
 273 //!!    exit_bitmap = bm_load("steel1.bbm");
 274 //!!    exit_bitmap_list[0] = &exit_bitmap;
 275
 276 //!!    exit_modelnum = load_polygon_model("exit01.pof",1,exit_bitmap_list,NULL);
 277 //!!    destroyed_exit_modelnum = load_polygon_model("exit01d.pof",1,exit_bitmap_list,NULL);
 278
 279         generate_starfield();
 280
 281         atexit(free_endlevel_data);
 282
 283         terrain_bm_instance.bm_data = satellite_bm_instance.bm_data = NULL;
 284 }
 285 #endif  //SHAREWARE
 286
 287 object external_explosion;
 288 int ext_expl_playing,mine_destroyed;
 289
 290 extern fix flash_scale;
 291
 292 vms_angvec exit_angles={-0xa00,0,0};
 293
 294 vms_matrix surface_orient;
 295
 296 int endlevel_data_loaded=0;
 297 extern char last_palette_loaded[];
 298
 299 void start_endlevel_sequence()
 300 {
 301         int     i;
 302         int movie_played;
 303         #if defined(MACINTOSH) && defined(SHAREWARE)
 304         static int inited = 0;
 305
 306         if (!inited) {
 307                 load_exit_models();
 308                 inited = 1;
 309         }
 310         #endif
 311
 312         if (Newdemo_state == ND_STATE_RECORDING)                // stop demo recording
 313                 Newdemo_state = ND_STATE_PAUSED;
 314
 315         if (Newdemo_state == ND_STATE_PLAYBACK) {               // don't do this if in playback mode
 316                 if (Current_mission_num == 0)           //only play movie for built-in mission
 317                         start_endlevel_movie();
 318                 strcpy(last_palette_loaded,"");         //force palette load next time
 319                 return;
 320         }
 321
 322         if (Player_is_dead || ConsoleObject->flags&OF_SHOULD_BE_DEAD)
 323                 return;                         //don't start if dead!
 324
 325         //      Dematerialize Buddy!
 326         for (i=0; i<=Highest_object_index; i++)
 327                 if (Objects[i].type == OBJ_ROBOT)
 328                         if (Robot_info[Objects[i].id].companion) {
 329                                 object_create_explosion(Objects[i].segnum, &Objects[i].pos, F1_0*7/2, VCLIP_POWERUP_DISAPPEARANCE );
 330                                 Objects[i].flags |= OF_SHOULD_BE_DEAD;
 331                         }
 332
 333         Players[Player_num].homing_object_dist = -F1_0; // Turn off homing sound.
 334
 335         reset_rear_view();              //turn off rear view if set
 336
 337 #ifdef NETWORK
 338         if (Game_mode & GM_MULTI) {
 339                 multi_send_endlevel_start(0);
 340                 network_do_frame(1, 1);
 341         }
 342 #endif
 343
 344         if (Current_mission_num == 0) {         //only play movie for built-in mission
 345
 346                 //try playing movie.  If it plays, great. if not, do rendered ending
 347
 348                 if (!(Game_mode & GM_MULTI))
 349                         movie_played = start_endlevel_movie();
 350
 351                 #ifdef SHAREWARE
 352                 if (movie_played == MOVIE_NOT_PLAYED) {         //don't have movie.  Do rendered sequence
 353                 #ifndef WINDOWS
 354                         start_rendered_endlevel_sequence();
 355                 #endif
 356                         return;
 357                 }
 358                 #endif
 359
 360         }
 361         else
 362                 gr_palette_fade_out(gr_palette, 32, 0);
 363
 364         PlayerFinishedLevel(0);         //done with level
 365 }
 366
 367 #ifndef SHAREWARE
 368
 369 void do_endlevel_frame() {Int3();}
 370 void stop_endlevel_sequence() {Int3();}
 371 void render_endlevel_frame(fix eye_offset) {Int3();}
 372
 373 #else
 374
 375 static int cockpit_mode_save;
 376
 377 start_rendered_endlevel_sequence()
 378 {
 379         int last_segnum,exit_side,tunnel_length;
 380
 381         {
 382                 int segnum,old_segnum,entry_side,i;
 383
 384                 //count segments in exit tunnel
 385
 386                 old_segnum = ConsoleObject->segnum;
 387                 exit_side = find_exit_side(ConsoleObject);
 388                 segnum = Segments[old_segnum].children[exit_side];
 389                 tunnel_length = 0;
 390                 do {
 391                         entry_side = matt_find_connect_side(segnum,old_segnum);
 392                         exit_side = Side_opposite[entry_side];
 393                         old_segnum = segnum;
 394                         segnum = Segments[segnum].children[exit_side];
 395                         tunnel_length++;
 396                 } while (segnum >= 0);
 397
 398                 if (segnum != -2) {
 399                         PlayerFinishedLevel(0);         //don't do special sequence
 400                         return;
 401                 }
 402
 403                 last_segnum = old_segnum;
 404
 405                 //now pick transition segnum 1/3 of the way in
 406
 407                 old_segnum = ConsoleObject->segnum;
 408                 exit_side = find_exit_side(ConsoleObject);
 409                 segnum = Segments[old_segnum].children[exit_side];
 410                 i=tunnel_length/3;
 411                 while (i--) {
 412
 413                         entry_side = matt_find_connect_side(segnum,old_segnum);
 414                         exit_side = Side_opposite[entry_side];
 415                         old_segnum = segnum;
 416                         segnum = Segments[segnum].children[exit_side];
 417                 }
 418                 transition_segnum = segnum;
 419
 420         }
 421
 422         cockpit_mode_save = Cockpit_mode;
 423
 424         #ifdef NETWORK
 425         if (Game_mode & GM_MULTI) {
 426                 multi_send_endlevel_start(0);
 427                 network_do_frame(1, 1);
 428         }
 429         #endif
 430
 431         #ifdef SHAREWARE
 432         Assert(last_segnum == exit_segnum);
 433         //      songs_play_song( SONG_ENDLEVEL, 0 );    // JTS: Until we get an exit song, just don't worry
 434         #endif
 435
 436         Endlevel_sequence = EL_FLYTHROUGH;
 437
 438         ConsoleObject->movement_type = MT_NONE;                 //movement handled by flythrough
 439         ConsoleObject->control_type = CT_NONE;
 440
 441         Game_suspended |= SUSP_ROBOTS;          //robots don't move
 442
 443         cur_fly_speed = desired_fly_speed = FLY_SPEED;
 444
 445         start_endlevel_flythrough(0,ConsoleObject,cur_fly_speed);               //initialize
 446
 447         HUD_init_message( TXT_EXIT_SEQUENCE );
 448
 449         outside_mine = ext_expl_playing = 0;
 450
 451         flash_scale = f1_0;
 452
 453         //init_endlevel();
 454
 455         mine_destroyed=0;
 456
 457 }
 458
 459 extern flythrough_data fly_objects[];
 460
 461 extern object *slew_obj;
 462
 463 vms_angvec player_angles,player_dest_angles;
 464 vms_angvec camera_desired_angles,camera_cur_angles;
 465
 466 #define CHASE_TURN_RATE (0x4000/4)              //max turn per second
 467
 468 //returns bitmask of which angles are at dest. bits 0,1,2 = p,b,h
 469 int chase_angles(vms_angvec *cur_angles,vms_angvec *desired_angles)
 470 {
 471         vms_angvec delta_angs,alt_angles,alt_delta_angs;
 472         fix total_delta,alt_total_delta;
 473         fix frame_turn;
 474         int mask=0;
 475
 476         delta_angs.p = desired_angles->p - cur_angles->p;
 477         delta_angs.h = desired_angles->h - cur_angles->h;
 478         delta_angs.b = desired_angles->b - cur_angles->b;
 479 //delta_angs.b = 0;
 480
 481 //printf("chasing angles...desired = %x %x %x, cur = %x %x %x   ",desired_angles->p,desired_angles->b,desired_angles->h,cur_angles->p,cur_angles->b,cur_angles->h);
 482
 483         total_delta = abs(delta_angs.p) + abs(delta_angs.b) + abs(delta_angs.h);
 484
 485         alt_angles.p = f1_0/2 - cur_angles->p;
 486         alt_angles.b = cur_angles->b + f1_0/2;
 487         alt_angles.h = cur_angles->h + f1_0/2;
 488
 489         alt_delta_angs.p = desired_angles->p - alt_angles.p;
 490         alt_delta_angs.h = desired_angles->h - alt_angles.h;
 491         alt_delta_angs.b = desired_angles->b - alt_angles.b;
 492 //alt_delta_angs.b = 0;
 493
 494         alt_total_delta = abs(alt_delta_angs.p) + abs(alt_delta_angs.b) + abs(alt_delta_angs.h);
 495
 496 //printf("Total delta = %x, alt total_delta = %x\n",total_delta,alt_total_delta);
 497
 498         if (alt_total_delta < total_delta) {
 499                 //mprintf((0,"FLIPPING ANGLES!\n"));
 500                 //printf("FLIPPING ANGLES!\n");
 501                 *cur_angles = alt_angles;
 502                 delta_angs = alt_delta_angs;
 503         }
 504
 505         frame_turn = fixmul(FrameTime,CHASE_TURN_RATE);
 506
 507         if (abs(delta_angs.p) < frame_turn) {
 508                 cur_angles->p = desired_angles->p;
 509                 mask |= 1;
 510         }
 511         else
 512                 if (delta_angs.p > 0)
 513                         cur_angles->p += frame_turn;
 514                 else
 515                         cur_angles->p -= frame_turn;
 516
 517         if (abs(delta_angs.b) < frame_turn) {
 518                 cur_angles->b = desired_angles->b;
 519                 mask |= 2;
 520         }
 521         else
 522                 if (delta_angs.b > 0)
 523                         cur_angles->b += frame_turn;
 524                 else
 525                         cur_angles->b -= frame_turn;
 526 //cur_angles->b = 0;
 527
 528         if (abs(delta_angs.h) < frame_turn) {
 529                 cur_angles->h = desired_angles->h;
 530                 mask |= 4;
 531         }
 532         else
 533                 if (delta_angs.h > 0)
 534                         cur_angles->h += frame_turn;
 535                 else
 536                         cur_angles->h -= frame_turn;
 537
 538         return mask;
 539 }
 540
 541 stop_endlevel_sequence()
 542 {
 543         Interpolation_method = 0;
 544
 545         gr_palette_fade_out(gr_palette, 32, 0);
 546
 547         select_cockpit(cockpit_mode_save);
 548
 549         Endlevel_sequence = EL_OFF;
 550
 551         PlayerFinishedLevel(0);
 552
 553 }
 554
 555 #define VCLIP_BIG_PLAYER_EXPLOSION      58
 556
 557 //--unused-- vms_vector upvec = {0,f1_0,0};
 558
 559 //find the angle between the player's heading & the station
 560 get_angs_to_object(vms_angvec *av,vms_vector *targ_pos,vms_vector *cur_pos)
 561 {
 562         vms_vector tv;
 563
 564         vm_vec_sub(&tv,targ_pos,cur_pos);
 565
 566         vm_extract_angles_vector(av,&tv);
 567 }
 568
 569 do_endlevel_frame()
 570 {
 571         #ifdef SHAREWARE
 572         static fix timer;
 573         static fix bank_rate;
 574         #endif
 575         vms_vector save_last_pos;
 576         static fix explosion_wait1=0;
 577         static fix explosion_wait2=0;
 578         static fix ext_expl_halflife;
 579
 580         save_last_pos = ConsoleObject->last_pos;        //don't let move code change this
 581         object_move_all();
 582         ConsoleObject->last_pos = save_last_pos;
 583
 584         if (ext_expl_playing) {
 585
 586                 external_explosion.lifeleft -= FrameTime;
 587                 do_explosion_sequence(&external_explosion);
 588
 589                 if (external_explosion.lifeleft < ext_expl_halflife)
 590                         mine_destroyed = 1;
 591
 592                 if (external_explosion.flags & OF_SHOULD_BE_DEAD)
 593                         ext_expl_playing = 0;
 594         }
 595
 596         if (cur_fly_speed != desired_fly_speed) {
 597                 fix delta = desired_fly_speed - cur_fly_speed;
 598                 fix frame_accel = fixmul(FrameTime,FLY_ACCEL);
 599
 600                 if (abs(delta) < frame_accel)
 601                         cur_fly_speed = desired_fly_speed;
 602                 else
 603                         if (delta > 0)
 604                                 cur_fly_speed += frame_accel;
 605                         else
 606                                 cur_fly_speed -= frame_accel;
 607         }
 608
 609         //do big explosions
 610         if (!outside_mine) {
 611
 612                 if (Endlevel_sequence==EL_OUTSIDE) {
 613                         vms_vector tvec;
 614
 615                         vm_vec_sub(&tvec,&ConsoleObject->pos,&mine_side_exit_point);
 616
 617                         if (vm_vec_dot(&tvec,&mine_exit_orient.fvec) > 0) {
 618                                 object *tobj;
 619
 620                                 outside_mine = 1;
 621
 622                                 tobj = object_create_explosion(exit_segnum,&mine_side_exit_point,i2f(50),VCLIP_BIG_PLAYER_EXPLOSION);
 623
 624                                 if (tobj) {
 625                                         external_explosion = *tobj;
 626
 627                                         tobj->flags |= OF_SHOULD_BE_DEAD;
 628
 629                                         flash_scale = 0;        //kill lights in mine
 630
 631                                         ext_expl_halflife = tobj->lifeleft;
 632
 633                                         ext_expl_playing = 1;
 634                                 }
 635
 636                                 digi_link_sound_to_pos( SOUND_BIG_ENDLEVEL_EXPLOSION, exit_segnum, 0, &mine_side_exit_point, 0, i2f(3)/4 );
 637                         }
 638                 }
 639
 640                 //do explosions chasing player
 641                 if ((explosion_wait1-=FrameTime) < 0) {
 642                         vms_vector tpnt;
 643                         int segnum;
 644                         object *expl;
 645                         static int sound_count;
 646
 647                         vm_vec_scale_add(&tpnt,&ConsoleObject->pos,&ConsoleObject->orient.fvec,-ConsoleObject->size*5);
 648                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*15);
 649                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*15);
 650
 651                         segnum = find_point_seg(&tpnt,ConsoleObject->segnum);
 652
 653                         if (segnum != -1) {
 654                                 expl = object_create_explosion(segnum,&tpnt,i2f(20),VCLIP_BIG_PLAYER_EXPLOSION);
 655                                 if (d_rand()<10000 || ++sound_count==7) {               //pseudo-random
 656                                         digi_link_sound_to_pos( SOUND_TUNNEL_EXPLOSION, segnum, 0, &tpnt, 0, F1_0 );
 657                                         sound_count=0;
 658                                 }
 659                         }
 660
 661                         explosion_wait1 = 0x2000 + d_rand()/4;
 662
 663                 }
 664         }
 665
 666         //do little explosions on walls
 667         if (Endlevel_sequence >= EL_FLYTHROUGH && Endlevel_sequence < EL_OUTSIDE)
 668                 if ((explosion_wait2-=FrameTime) < 0) {
 669                         vms_vector tpnt;
 670                         fvi_query fq;
 671                         fvi_info hit_data;
 672
 673                         //create little explosion on wall
 674
 675                         vm_vec_copy_scale(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*100);
 676                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*100);
 677                         vm_vec_add2(&tpnt,&ConsoleObject->pos);
 678
 679                         if (Endlevel_sequence == EL_FLYTHROUGH)
 680                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*200);
 681                         else
 682                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*60);
 683
 684                         //find hit point on wall
 685
 686                         fq.p0 = &ConsoleObject->pos;
 687                         fq.p1 = &tpnt;
 688                         fq.startseg = ConsoleObject->segnum;
 689                         fq.rad = 0;
 690                         fq.thisobjnum = 0;
 691                         fq.ignore_obj_list = NULL;
 692                         fq.flags = 0;
 693
 694                         find_vector_intersection(&fq,&hit_data);
 695
 696                         if (hit_data.hit_type==HIT_WALL && hit_data.hit_seg!=-1)
 697                                 object_create_explosion(hit_data.hit_seg,&hit_data.hit_pnt,i2f(3)+d_rand()*6,VCLIP_SMALL_EXPLOSION);
 698
 699                         explosion_wait2 = (0xa00 + d_rand()/8)/2;
 700                 }
 701
 702         switch (Endlevel_sequence) {
 703
 704                 case EL_OFF: return;
 705
 706                 case EL_FLYTHROUGH: {
 707
 708                         do_endlevel_flythrough(0);
 709
 710                         if (ConsoleObject->segnum == transition_segnum) {
 711
 712                                 #ifndef SHAREWARE
 713                                         start_endlevel_movie();
 714                                         stop_endlevel_sequence();
 715                                 #else
 716
 717                                 int objnum;
 718
 719                                 //songs_play_song( SONG_ENDLEVEL, 0 );
 720
 721                                 Endlevel_sequence = EL_LOOKBACK;
 722
 723                                 objnum = obj_create(OBJ_CAMERA, 0,
 724                                         ConsoleObject->segnum,&ConsoleObject->pos,&ConsoleObject->orient,0,
 725                                         CT_NONE,MT_NONE,RT_NONE);
 726
 727                                 if (objnum == -1) {                             //can't get object, so abort
 728                                         mprintf((1, "Can't get object for endlevel sequence.  Aborting endlevel sequence.\n"));
 729                                         stop_endlevel_sequence();
 730                                         return;
 731                                 }
 732
 733                                 Viewer = endlevel_camera = &Objects[objnum];
 734
 735                                 select_cockpit(CM_LETTERBOX);
 736
 737                                 fly_objects[1] = fly_objects[0];
 738                                 fly_objects[1].obj = endlevel_camera;
 739                                 fly_objects[1].speed = (5*cur_fly_speed)/4;
 740                                 fly_objects[1].offset_frac = 0x4000;
 741
 742                                 vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,i2f(7));
 743
 744                                 timer=0x20000;
 745
 746                                 #endif
 747                         }
 748
 749                         break;
 750                 }
 751
 752
 753 #ifdef SHAREWARE
 754                 case EL_LOOKBACK: {
 755
 756                         do_endlevel_flythrough(0);
 757                         do_endlevel_flythrough(1);
 758
 759                         if (timer>0) {
 760
 761                                 timer -= FrameTime;
 762
 763                                 if (timer < 0)          //reduce speed
 764                                         fly_objects[1].speed = fly_objects[0].speed;
 765                         }
 766
 767                         if (endlevel_camera->segnum == exit_segnum) {
 768                                 vms_angvec cam_angles,exit_seg_angles;
 769
 770                                 Endlevel_sequence = EL_OUTSIDE;
 771
 772                                 timer = i2f(2);
 773
 774                                 vm_vec_negate(&endlevel_camera->orient.fvec);
 775                                 vm_vec_negate(&endlevel_camera->orient.rvec);
 776
 777                                 vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 778                                 vm_extract_angles_matrix(&exit_seg_angles,&mine_exit_orient);
 779                                 bank_rate = (-exit_seg_angles.b - cam_angles.b)/2;
 780
 781                                 ConsoleObject->control_type = endlevel_camera->control_type = CT_NONE;
 782
 783 #ifdef SLEW_ON
 784  slew_obj = endlevel_camera;
 785 #endif
 786                         }
 787
 788                         break;
 789                 }
 790
 791                 case EL_OUTSIDE: {
 792                         #ifndef SLEW_ON
 793                         vms_angvec cam_angles;
 794                         #endif
 795
 796                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 797 #ifndef SLEW_ON
 798                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,-2*cur_fly_speed));
 799                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.uvec,fixmul(FrameTime,-cur_fly_speed/10));
 800
 801                         vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 802                         cam_angles.b += fixmul(bank_rate,FrameTime);
 803                         vm_angles_2_matrix(&endlevel_camera->orient,&cam_angles);
 804 #endif
 805
 806                         timer -= FrameTime;
 807
 808                         if (timer < 0) {
 809
 810                                 Endlevel_sequence = EL_STOPPED;
 811
 812                                 vm_extract_angles_matrix(&player_angles,&ConsoleObject->orient);
 813
 814                                 timer = i2f(3);
 815
 816                         }
 817
 818                         break;
 819                 }
 820
 821                 case EL_STOPPED: {
 822
 823                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 824                         chase_angles(&player_angles,&player_dest_angles);
 825                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 826
 827                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 828
 829                         timer -= FrameTime;
 830
 831                         if (timer < 0) {
 832
 833                                 #ifdef SLEW_ON
 834                                 slew_obj = endlevel_camera;
 835                                 _do_slew_movement(endlevel_camera,1,1);
 836                                 timer += FrameTime;             //make time stop
 837                                 break;
 838                                 #else
 839
 840                                 #ifdef SHORT_SEQUENCE
 841
 842                                 stop_endlevel_sequence();
 843
 844                                 #else
 845                                 Endlevel_sequence = EL_PANNING;
 846
 847                                 vm_extract_angles_matrix(&camera_cur_angles,&endlevel_camera->orient);
 848
 849
 850                                 timer = i2f(3);
 851
 852                                 if (Game_mode & GM_MULTI) { // try to skip part of the seq if multiplayer
 853                                         stop_endlevel_sequence();
 854                                         return;
 855                                 }
 856
 857                                 //mprintf((0,"Switching to pan...\n"));
 858                                 #endif          //SHORT_SEQUENCE
 859                                 #endif          //SLEW_ON
 860
 861                         }
 862                         break;
 863                 }
 864
 865                 #ifndef SHORT_SEQUENCE
 866                 case EL_PANNING: {
 867                         #ifndef SLEW_ON
 868                         int mask;
 869                         #endif
 870
 871                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 872                         chase_angles(&player_angles,&player_dest_angles);
 873                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 874                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 875
 876                         #ifdef SLEW_ON
 877                         _do_slew_movement(endlevel_camera,1,1);
 878                         #else
 879
 880                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 881                         mask = chase_angles(&camera_cur_angles,&camera_desired_angles);
 882                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 883
 884                         if ((mask&5) == 5) {
 885
 886                                 vms_vector tvec;
 887
 888                                 Endlevel_sequence = EL_CHASING;
 889
 890                                 vm_vec_normalized_dir_quick(&tvec,&station_pos,&ConsoleObject->pos);
 891                                 vm_vector_2_matrix(&ConsoleObject->orient,&tvec,&surface_orient.uvec,NULL);
 892
 893                                 desired_fly_speed *= 2;
 894
 895                                 //mprintf((0,"Switching to chase...\n"));
 896
 897                         }
 898                         #endif
 899
 900                         break;
 901                 }
 902
 903                 case EL_CHASING: {
 904                         fix d,speed_scale;
 905
 906                         #ifdef SLEW_ON
 907                         _do_slew_movement(endlevel_camera,1,1);
 908                         #endif
 909
 910                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 911                         chase_angles(&camera_cur_angles,&camera_desired_angles);
 912
 913                         #ifndef SLEW_ON
 914                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 915                         #endif
 916
 917                         d = vm_vec_dist_quick(&ConsoleObject->pos,&endlevel_camera->pos);
 918
 919                         speed_scale = fixdiv(d,i2f(0x20));
 920                         if (d<f1_0) d=f1_0;
 921
 922                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 923                         chase_angles(&player_angles,&player_dest_angles);
 924                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 925
 926                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 927                         #ifndef SLEW_ON
 928                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,fixmul(speed_scale,cur_fly_speed)));
 929
 930                         if (vm_vec_dist(&ConsoleObject->pos,&station_pos) < i2f(10))
 931                                 stop_endlevel_sequence();
 932                         #endif
 933
 934                         break;
 935
 936                 }
 937                 #endif          //ifdef SHORT_SEQUENCE
 938 #endif
 939
 940         }
 941 }
 942
 943
 944 #define MIN_D 0x100
 945
 946 //find which side to fly out of
 947 find_exit_side(object *obj)
 948 {
 949         int i;
 950         vms_vector prefvec,segcenter,sidevec;
 951         fix best_val=-f2_0;
 952         int best_side;
 953         segment *pseg = &Segments[obj->segnum];
 954
 955         //find exit side
 956
 957         vm_vec_normalized_dir_quick(&prefvec,&obj->pos,&obj->last_pos);
 958
 959         compute_segment_center(&segcenter,pseg);
 960
 961         best_side=-1;
 962         for (i=MAX_SIDES_PER_SEGMENT;--i >= 0;) {
 963                 fix d;
 964
 965                 if (pseg->children[i]!=-1) {
 966
 967                         compute_center_point_on_side(&sidevec,pseg,i);
 968                         vm_vec_normalized_dir_quick(&sidevec,&sidevec,&segcenter);
 969                         d = vm_vec_dotprod(&sidevec,&prefvec);
 970
 971                         if (labs(d) < MIN_D) d=0;
 972
 973                         if (d > best_val) {best_val=d; best_side=i;}
 974
 975                 }
 976         }
 977
 978         Assert(best_side!=-1);
 979
 980         return best_side;
 981 }
 982
 983 extern fix Render_zoom;                                                 //the player's zoom factor
 984
 985 extern vms_vector Viewer_eye;   //valid during render
 986
 987 draw_exit_model()
 988 {
 989         vms_vector model_pos;
 990         int f=15,u=0;   //21;
 991
 992         vm_vec_scale_add(&model_pos,&mine_exit_point,&mine_exit_orient.fvec,i2f(f));
 993         vm_vec_scale_add2(&model_pos,&mine_exit_orient.uvec,i2f(u));
 994
 995         draw_polygon_model(&model_pos,&mine_exit_orient,NULL,(mine_destroyed)?destroyed_exit_modelnum:exit_modelnum,0,f1_0,NULL,NULL);
 996
 997 }
 998
 999 int exit_point_bmx,exit_point_bmy;
1000
1001 fix satellite_size = i2f(400);
1002
1003 #define SATELLITE_DIST          i2f(1024)
1004 #define SATELLITE_WIDTH         satellite_size
1005 #define SATELLITE_HEIGHT        ((satellite_size*9)/4)          //((satellite_size*5)/2)
1006
1007 render_external_scene(fix eye_offset)
1008 {
1009
1010         Viewer_eye = Viewer->pos;
1011
1012         if (eye_offset)
1013                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1014
1015         g3_set_view_matrix(&Viewer->pos,&Viewer->orient,Render_zoom);
1016
1017         //g3_draw_horizon(BM_XRGB(0,0,0),BM_XRGB(16,16,16));            //,-1);
1018         gr_clear_canvas(BM_XRGB(0,0,0));
1019
1020         g3_start_instance_matrix(&vmd_zero_vector,&surface_orient);
1021         draw_stars();
1022         g3_done_instance();
1023
1024         {       //draw satellite
1025
1026                 vms_vector delta;
1027                 g3s_point p,top_pnt;
1028
1029                 g3_rotate_point(&p,&satellite_pos);
1030                 g3_rotate_delta_vec(&delta,&satellite_upvec);
1031
1032                 g3_add_delta_vec(&top_pnt,&p,&delta);
1033
1034                 if (! (p.p3_codes & CC_BEHIND)) {
1035                         int save_im = Interpolation_method;
1036                         //p.p3_flags &= ~PF_PROJECTED;
1037                         //g3_project_point(&p);
1038                         if (! (p.p3_flags & PF_OVERFLOW)) {
1039                                 Interpolation_method = 0;
1040                                 //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1041                                 g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1042                                 Interpolation_method = save_im;
1043                         }
1044                 }
1045         }
1046
1047         #ifdef STATION_ENABLED
1048         draw_polygon_model(&station_pos,&vmd_identity_matrix,NULL,station_modelnum,0,f1_0,NULL,NULL);
1049         #endif
1050
1051         render_terrain(&mine_ground_exit_point,exit_point_bmx,exit_point_bmy);
1052
1053         draw_exit_model();
1054         if (ext_expl_playing)
1055                 draw_fireball(&external_explosion);
1056
1057         Lighting_on=0;
1058         render_object(ConsoleObject);
1059         Lighting_on=1;
1060 }
1061
1062 #define MAX_STARS 500
1063
1064 vms_vector stars[MAX_STARS];
1065
1066 generate_starfield()
1067 {
1068         int i;
1069
1070         for (i=0;i<MAX_STARS;i++) {
1071
1072                 stars[i].x = (d_rand() - RAND_MAX/2) << 14;
1073                 stars[i].z = (d_rand() - RAND_MAX/2) << 14;
1074                 stars[i].y = (d_rand()/2) << 14;
1075
1076         }
1077 }
1078
1079 draw_stars()
1080 {
1081         int i;
1082         int intensity=31;
1083         g3s_point p;
1084
1085         for (i=0;i<MAX_STARS;i++) {
1086
1087                 if ((i&63) == 0) {
1088                         gr_setcolor(BM_XRGB(intensity,intensity,intensity));
1089                         intensity-=3;
1090                 }
1091
1092                 //g3_rotate_point(&p,&stars[i]);
1093                 g3_rotate_delta_vec(&p.p3_vec,&stars[i]);
1094                 g3_code_point(&p);
1095
1096                 if (p.p3_codes == 0) {
1097
1098                         p.p3_flags &= ~PF_PROJECTED;
1099
1100                         g3_project_point(&p);
1101
1102                         gr_pixel(f2i(p.p3_sx),f2i(p.p3_sy));
1103                 }
1104         }
1105
1106 //@@    {
1107 //@@            vms_vector delta;
1108 //@@            g3s_point top_pnt;
1109 //@@
1110 //@@            g3_rotate_point(&p,&satellite_pos);
1111 //@@            g3_rotate_delta_vec(&delta,&satellite_upvec);
1112 //@@
1113 //@@            g3_add_delta_vec(&top_pnt,&p,&delta);
1114 //@@
1115 //@@            if (! (p.p3_codes & CC_BEHIND)) {
1116 //@@                    int save_im = Interpolation_method;
1117 //@@                    Interpolation_method = 0;
1118 //@@                    //p.p3_flags &= ~PF_PROJECTED;
1119 //@@                    g3_project_point(&p);
1120 //@@                    if (! (p.p3_flags & PF_OVERFLOW))
1121 //@@                            //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1122 //@@                            g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1123 //@@                    Interpolation_method = save_im;
1124 //@@            }
1125 //@@    }
1126
1127 }
1128
1129 endlevel_render_mine(fix eye_offset)
1130 {
1131         int start_seg_num;
1132
1133         Viewer_eye = Viewer->pos;
1134
1135         if (Viewer->type == OBJ_PLAYER )
1136                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.fvec,(Viewer->size*3)/4);
1137
1138         if (eye_offset)
1139                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1140
1141         #ifdef EDITOR
1142         if (Function_mode==FMODE_EDITOR)
1143                 Viewer_eye = Viewer->pos;
1144         #endif
1145
1146         if (Endlevel_sequence >= EL_OUTSIDE) {
1147
1148                 start_seg_num = exit_segnum;
1149         }
1150         else {
1151                 start_seg_num = find_point_seg(&Viewer_eye,Viewer->segnum);
1152
1153                 if (start_seg_num==-1)
1154                         start_seg_num = Viewer->segnum;
1155         }
1156
1157         if (Endlevel_sequence == EL_LOOKBACK) {
1158                 vms_matrix headm,viewm;
1159                 vms_angvec angles = {0,0,0x7fff};
1160
1161                 vm_angles_2_matrix(&headm,&angles);
1162                 vm_matrix_x_matrix(&viewm,&Viewer->orient,&headm);
1163                 g3_set_view_matrix(&Viewer_eye,&viewm,Render_zoom);
1164         }
1165         else
1166                 g3_set_view_matrix(&Viewer_eye,&Viewer->orient,Render_zoom);
1167
1168         render_mine(start_seg_num,eye_offset, 0);
1169 }
1170
1171 void render_endlevel_frame(fix eye_offset)
1172 {
1173
1174         g3_start_frame();
1175
1176         if (Endlevel_sequence < EL_OUTSIDE)
1177                 endlevel_render_mine(eye_offset);
1178         #ifdef SHAREWARE
1179         else
1180                 render_external_scene(eye_offset);
1181         #endif
1182
1183         g3_end_frame();
1184
1185 }
1186
1187
1188 ///////////////////////// copy of flythrough code for endlevel
1189
1190
1191 #define MAX_FLY_OBJECTS 2
1192
1193 flythrough_data fly_objects[MAX_FLY_OBJECTS];
1194
1195 flythrough_data *flydata;
1196
1197 int matt_find_connect_side(int seg0,int seg1);
1198
1199 void compute_segment_center(vms_vector *vp,segment *sp);
1200
1201 fixang delta_ang(fixang a,fixang b);
1202 fixang interp_angle(fixang dest,fixang src,fixang step);
1203
1204 #define DEFAULT_SPEED i2f(16)
1205
1206 #define MIN_D 0x100
1207
1208 //if speed is zero, use default speed
1209 start_endlevel_flythrough(int n,object *obj,fix speed)
1210 {
1211         flydata = &fly_objects[n];
1212
1213         flydata->obj = obj;
1214
1215         flydata->first_time = 1;
1216
1217         flydata->speed = speed?speed:DEFAULT_SPEED;
1218
1219         flydata->offset_frac = 0;
1220 }
1221
1222 static vms_angvec *angvec_add2_scale(vms_angvec *dest,vms_vector *src,fix s)
1223 {
1224         dest->p += fixmul(src->x,s);
1225         dest->b  += fixmul(src->z,s);
1226         dest->h  += fixmul(src->y,s);
1227
1228         return dest;
1229 }
1230
1231 #define MAX_ANGSTEP     0x4000          //max turn per second
1232
1233 #define MAX_SLIDE_PER_SEGMENT 0x10000
1234
1235 do_endlevel_flythrough(int n)
1236 {
1237         object *obj;
1238         segment *pseg;
1239         int old_player_seg;
1240
1241         flydata = &fly_objects[n];
1242         obj = flydata->obj;
1243
1244         old_player_seg = obj->segnum;
1245
1246         //move the player for this frame
1247
1248         if (!flydata->first_time) {
1249
1250                 vm_vec_scale_add2(&obj->pos,&flydata->step,FrameTime);
1251                 angvec_add2_scale(&flydata->angles,&flydata->angstep,FrameTime);
1252
1253                 vm_angles_2_matrix(&obj->orient,&flydata->angles);
1254         }
1255
1256         //check new player seg
1257
1258         update_object_seg(obj);
1259         pseg = &Segments[obj->segnum];
1260
1261         if (flydata->first_time || obj->segnum != old_player_seg) {             //moved into new seg
1262                 vms_vector curcenter,nextcenter;
1263                 fix step_size,seg_time;
1264                 short entry_side,exit_side;     //what sides we entry and leave through
1265                 vms_vector dest_point;          //where we are heading (center of exit_side)
1266                 vms_angvec dest_angles;         //where we want to be pointing
1267                 vms_matrix dest_orient;
1268                 int up_side;
1269
1270                 //find new exit side
1271
1272                 if (!flydata->first_time) {
1273
1274                         entry_side = matt_find_connect_side(obj->segnum,old_player_seg);
1275                         exit_side = Side_opposite[entry_side];
1276                 }
1277
1278                 if (flydata->first_time || entry_side==-1 || pseg->children[exit_side]==-1)
1279                         exit_side = find_exit_side(obj);
1280
1281                 {                                                                               //find closest side to align to
1282                         fix d,largest_d=-f1_0;
1283                         int i;
1284
1285                         for (i=0;i<6;i++) {
1286                                 #ifdef COMPACT_SEGS
1287                                 vms_vector v1;
1288                                 get_side_normal(pseg, i, 0, &v1 );
1289                                 d = vm_vec_dot(&v1,&flydata->obj->orient.uvec);
1290                                 #else
1291                                 d = vm_vec_dot(&pseg->sides[i].normals[0],&flydata->obj->orient.uvec);
1292                                 #endif
1293                                 if (d > largest_d) {largest_d = d; up_side=i;}
1294                         }
1295
1296                 }
1297
1298                 //update target point & angles
1299
1300                 compute_center_point_on_side(&dest_point,pseg,exit_side);
1301
1302                 //update target point and movement points
1303
1304                 //offset object sideways
1305                 if (flydata->offset_frac) {
1306                         int s0=-1,s1,i;
1307                         vms_vector s0p,s1p;
1308                         fix dist;
1309
1310                         for (i=0;i<6;i++)
1311                                 if (i!=entry_side && i!=exit_side && i!=up_side && i!=Side_opposite[up_side])
1312                                         if (s0==-1)
1313                                                 s0 = i;
1314                                         else
1315                                                 s1 = i;
1316
1317                         compute_center_point_on_side(&s0p,pseg,s0);
1318                         compute_center_point_on_side(&s1p,pseg,s1);
1319                         dist = fixmul(vm_vec_dist(&s0p,&s1p),flydata->offset_frac);
1320
1321                         if (dist-flydata->offset_dist > MAX_SLIDE_PER_SEGMENT)
1322                                 dist = flydata->offset_dist + MAX_SLIDE_PER_SEGMENT;
1323
1324                         flydata->offset_dist = dist;
1325
1326                         vm_vec_scale_add2(&dest_point,&obj->orient.rvec,dist);
1327
1328                 }
1329
1330                 vm_vec_sub(&flydata->step,&dest_point,&obj->pos);
1331                 step_size = vm_vec_normalize_quick(&flydata->step);
1332                 vm_vec_scale(&flydata->step,flydata->speed);
1333
1334                 compute_segment_center(&curcenter,pseg);
1335                 compute_segment_center(&nextcenter,&Segments[pseg->children[exit_side]]);
1336                 vm_vec_sub(&flydata->headvec,&nextcenter,&curcenter);
1337
1338                 #ifdef COMPACT_SEGS
1339                 {
1340                         vms_vector _v1;
1341                         get_side_normal(pseg, up_side, 0, &_v1 );
1342                         vm_vector_2_matrix(&dest_orient,&flydata->headvec,&_v1,NULL);
1343                 }
1344                 #else
1345                 vm_vector_2_matrix(&dest_orient,&flydata->headvec,&pseg->sides[up_side].normals[0],NULL);
1346                 #endif
1347                 vm_extract_angles_matrix(&dest_angles,&dest_orient);
1348
1349                 if (flydata->first_time)
1350                         vm_extract_angles_matrix(&flydata->angles,&obj->orient);
1351
1352                 seg_time = fixdiv(step_size,flydata->speed);    //how long through seg
1353
1354                 if (seg_time) {
1355                         flydata->angstep.x = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.p,dest_angles.p),seg_time)));
1356                         flydata->angstep.z = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.b,dest_angles.b),seg_time)));
1357                         flydata->angstep.y = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.h,dest_angles.h),seg_time)));
1358
1359                 }
1360                 else {
1361                         flydata->angles = dest_angles;
1362                         flydata->angstep.x = flydata->angstep.y = flydata->angstep.z = 0;
1363                 }
1364         }
1365
1366         flydata->first_time=0;
1367 }
1368
1369 #define JOY_NULL 15
1370 #define ROT_SPEED 8             //rate of rotation while key held down
1371 #define VEL_SPEED (15)  //rate of acceleration while key held down
1372
1373 extern short old_joy_x,old_joy_y;       //position last time around
1374
1375 #include "key.h"
1376 #include "joy.h"
1377
1378 #ifdef SLEW_ON          //this is a special routine for slewing around external scene
1379 int _do_slew_movement(object *obj, int check_keys, int check_joy )
1380 {
1381         int moved = 0;
1382         vms_vector svel, movement;                              //scaled velocity (per this frame)
1383         vms_matrix rotmat,new_pm;
1384         int joy_x,joy_y,btns;
1385         int joyx_moved,joyy_moved;
1386         vms_angvec rotang;
1387
1388         if (keyd_pressed[KEY_PAD5])
1389                 vm_vec_zero(&obj->phys_info.velocity);
1390
1391         if (check_keys) {
1392                 obj->phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD9) - key_down_time(KEY_PAD7));
1393                 obj->phys_info.velocity.y += VEL_SPEED * (key_down_time(KEY_PADMINUS) - key_down_time(KEY_PADPLUS));
1394                 obj->phys_info.velocity.z += VEL_SPEED * (key_down_time(KEY_PAD8) - key_down_time(KEY_PAD2));
1395
1396                 rotang.pitch =  (key_down_time(KEY_LBRACKET) - key_down_time(KEY_RBRACKET))/ROT_SPEED;
1397                 rotang.bank  = (key_down_time(KEY_PAD1) - key_down_time(KEY_PAD3))/ROT_SPEED;
1398                 rotang.head  = (key_down_time(KEY_PAD6) - key_down_time(KEY_PAD4))/ROT_SPEED;
1399         }
1400         else
1401                 rotang.pitch = rotang.bank  = rotang.head  = 0;
1402
1403         //check for joystick movement
1404
1405         if (check_joy && joy_present)   {
1406                 joy_get_pos(&joy_x,&joy_y);
1407                 btns=joy_get_btns();
1408
1409                 joyx_moved = (abs(joy_x - old_joy_x)>JOY_NULL);
1410                 joyy_moved = (abs(joy_y - old_joy_y)>JOY_NULL);
1411
1412                 if (abs(joy_x) < JOY_NULL) joy_x = 0;
1413                 if (abs(joy_y) < JOY_NULL) joy_y = 0;
1414
1415                 if (btns)
1416                         if (!rotang.pitch) rotang.pitch = fixmul(-joy_y * 512,FrameTime); else;
1417                 else
1418                         if (joyy_moved) obj->phys_info.velocity.z = -joy_y * 8192;
1419
1420                 if (!rotang.head) rotang.head = fixmul(joy_x * 512,FrameTime);
1421
1422                 if (joyx_moved) old_joy_x = joy_x;
1423                 if (joyy_moved) old_joy_y = joy_y;
1424         }
1425
1426         moved = rotang.pitch | rotang.bank | rotang.head;
1427
1428         vm_angles_2_matrix(&rotmat,&rotang);
1429         vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
1430         obj->orient = new_pm;
1431         vm_transpose_matrix(&new_pm);           //make those columns rows
1432
1433         moved |= obj->phys_info.velocity.x | obj->phys_info.velocity.y | obj->phys_info.velocity.z;
1434
1435         svel = obj->phys_info.velocity;
1436         vm_vec_scale(&svel,FrameTime);          //movement in this frame
1437         vm_vec_rotate(&movement,&svel,&new_pm);
1438
1439         vm_vec_add2(&obj->pos,&movement);
1440
1441         moved |= (movement.x || movement.y || movement.z);
1442
1443         return moved;
1444 }
1445 #endif
1446
1447 #define LINE_LEN        80
1448 #define NUM_VARS        8
1449
1450 #define STATION_DIST    i2f(1024)
1451
1452 int convert_ext( char *dest, char *ext )
1453 {
1454         char *t;
1455
1456         t = strchr(dest,'.');
1457
1458         if (t && (t-dest <= 8)) {
1459                 t[1] = ext[0];
1460                 t[2] = ext[1];
1461                 t[3] = ext[2];
1462                 return 1;
1463         }
1464         else
1465                 return 0;
1466 }
1467
1468 //called for each level to load & setup the exit sequence
1469 load_endlevel_data(int level_num)
1470 {
1471         char filename[13];
1472         char line[LINE_LEN],*p;
1473         CFILE *ifile;
1474         int var,segnum,sidenum;
1475         int exit_side, i;
1476         int have_binary = 0;
1477
1478         endlevel_data_loaded = 0;               //not loaded yet
1479
1480 try_again:
1481         ;
1482
1483         if (level_num<0)                //secret level
1484                 strcpy(filename,Secret_level_names[-level_num-1]);
1485         else                                    //normal level
1486                 strcpy(filename,Level_names[level_num-1]);
1487
1488         if (!convert_ext(filename,"END"))
1489                 Error("Error converting filename <%s> for endlevel data\n",filename);
1490
1491         ifile = cfopen(filename,"rb");
1492
1493         if (!ifile) {
1494
1495                 convert_ext(filename,"TXB");
1496
1497                 ifile = cfopen(filename,"rb");
1498
1499                 if (!ifile)
1500                         if (level_num==1) {
1501                                 Error("Cannot load file text of binary version of <%s>",filename);
1502                         }
1503                         else {
1504                                 level_num = 1;
1505                                 goto try_again;
1506                         }
1507
1508                 have_binary = 1;
1509         }
1510
1511         //ok...this parser is pretty simple.  It ignores comments, but
1512         //everything else must be in the right place
1513
1514         var = 0;
1515
1516         while (cfgets(line,LINE_LEN,ifile)) {
1517
1518                 if (have_binary) {
1519                         for (i = 0; i < strlen(line) - 1; i++) {
1520                                 encode_rotate_left(&(line[i]));
1521                                 line[i] = line[i] ^ BITMAP_TBL_XOR;
1522                                 encode_rotate_left(&(line[i]));
1523                         }
1524                         p = line;
1525                 }
1526
1527                 if ((p=strchr(line,';'))!=NULL)
1528                         *p = 0;         //cut off comment
1529
1530                 for (p=line+strlen(line)-1;p>line && isspace(*p);*p--=0);
1531                 for (p=line;isspace(*p);p++);
1532
1533                 if (!*p)                //empty line
1534                         continue;
1535
1536                 switch (var) {
1537
1538                         case 0: {                                               //ground terrain
1539                                 int iff_error, i;
1540                                 ubyte pal[768];
1541
1542                                 if (terrain_bm_instance.bm_data)
1543                                         d_free(terrain_bm_instance.bm_data);
1544
1545                                 Assert(terrain_bm_instance.bm_data == NULL);
1546
1547                                 iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
1548                                 if (iff_error != IFF_NO_ERROR) {
1549                                         mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
1550                                         Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
1551                                 }
1552
1553                                 terrain_bitmap = &terrain_bm_instance;
1554
1555                                 gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
1556
1557                                 break;
1558                         }
1559
1560                         case 1:                                                 //height map
1561
1562                                 load_terrain(p);
1563                                 break;
1564
1565
1566                         case 2:
1567
1568                                 sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
1569                                 break;
1570
1571                         case 3:                                                 //exit heading
1572
1573                                 exit_angles.h = i2f(atoi(p))/360;
1574                                 break;
1575
1576                         case 4: {                                               //planet bitmap
1577                                 int iff_error;
1578                                 ubyte pal[768];
1579
1580                                 if (satellite_bm_instance.bm_data)
1581                                         d_free(satellite_bm_instance.bm_data);
1582
1583                                 iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
1584                                 if (iff_error != IFF_NO_ERROR) {
1585                                         mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
1586                                         Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
1587                                 }
1588
1589                                 satellite_bitmap = &satellite_bm_instance;
1590                                 gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
1591
1592                                 break;
1593                         }
1594
1595                         case 5:                                                 //earth pos
1596                         case 7: {                                               //station pos
1597                                 vms_matrix tm;
1598                                 vms_angvec ta;
1599                                 int pitch,head;
1600
1601                                 sscanf(p,"%d,%d",&head,&pitch);
1602
1603                                 ta.h = i2f(head)/360;
1604                                 ta.p = -i2f(pitch)/360;
1605                                 ta.b = 0;
1606
1607                                 vm_angles_2_matrix(&tm,&ta);
1608
1609                                 if (var==5)
1610                                         satellite_pos = tm.fvec;
1611                                         //vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
1612                                 else
1613                                         station_pos = tm.fvec;
1614
1615                                 break;
1616                         }
1617
1618                         case 6:                                         //planet size
1619                                 satellite_size = i2f(atoi(p));
1620                                 break;
1621                 }
1622
1623                 var++;
1624
1625         }
1626
1627         Assert(var == NUM_VARS);
1628
1629
1630         // OK, now the data is loaded.  Initialize everything
1631
1632         //find the exit sequence by searching all segments for a side with
1633         //children == -2
1634
1635         for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
1636                 for (sidenum=0;sidenum<6;sidenum++)
1637                         if (Segments[segnum].children[sidenum] == -2) {
1638                                 exit_segnum = segnum;
1639                                 exit_side = sidenum;
1640                                 break;
1641                         }
1642
1643         Assert(exit_segnum!=-1);
1644
1645         compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
1646         extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
1647         compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
1648
1649         vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
1650
1651         //compute orientation of surface
1652         {
1653                 vms_vector tv;
1654                 vms_matrix exit_orient,tm;
1655
1656                 vm_angles_2_matrix(&exit_orient,&exit_angles);
1657                 vm_transpose_matrix(&exit_orient);
1658                 vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
1659
1660                 vm_copy_transpose_matrix(&tm,&surface_orient);
1661                 vm_vec_rotate(&tv,&station_pos,&tm);
1662                 vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
1663
1664 vm_vec_rotate(&tv,&satellite_pos,&tm);
1665 vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
1666
1667 vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
1668 vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
1669
1670
1671         }
1672
1673         cfclose(ifile);
1674
1675         endlevel_data_loaded = 1;
1676
1677 }
1678
1679 #endif
1680