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 /*
  15  *
  16  * Code for rendering external scenes
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include <conf.h>
  22 #endif
  23
  24 //#define SLEW_ON 1
  25
  26 //#define _MARK_ON
  27
  28 #include <stdlib.h>
  29
  30
  31 #include <stdio.h>
  32 #include <string.h>
  33 #include <ctype.h> // for isspace
  34
  35 #include "fix.h"
  36 #include "vecmat.h"
  37 #include "gr.h"
  38 #include "3d.h"
  39 #include "error.h"
  40 #include "palette.h"
  41 #include "iff.h"
  42 #include "mono.h"
  43 #include "texmap.h"
  44 #include "fvi.h"
  45 #include "u_mem.h"
  46 #include "sounds.h"
  47
  48 #include "inferno.h"
  49 #include "endlevel.h"
  50 #include "object.h"
  51 #include "game.h"
  52 #include "screens.h"
  53 #include "gauges.h"
  54 #include "wall.h"
  55 #include "terrain.h"
  56 #include "polyobj.h"
  57 #include "bm.h"
  58 #include "gameseq.h"
  59 #include "newdemo.h"
  60 #include "multi.h"
  61 #include "vclip.h"
  62 #include "fireball.h"
  63 #ifdef NETWORK
  64 #include "network.h"
  65 #endif
  66 #include "text.h"
  67 #include "digi.h"
  68 #include "cfile.h"
  69 #include "songs.h"
  70 #include "movie.h"
  71 #include "render.h"
  72
  73 typedef struct flythrough_data {
  74         object          *obj;
  75         vms_angvec      angles;                 //orientation in angles
  76         vms_vector      step;                           //how far in a second
  77         vms_vector      angstep;                        //rotation per second
  78         fix                     speed;                  //how fast object is moving
  79         vms_vector      headvec;                        //where we want to be pointing
  80         int                     first_time;             //flag for if first time through
  81         fix                     offset_frac;    //how far off-center as portion of way
  82         fix                     offset_dist;    //how far currently off-center
  83 } flythrough_data;
  84
  85 //endlevel sequence states
  86
  87 #define EL_OFF                          0               //not in endlevel
  88 #define EL_FLYTHROUGH   1               //auto-flythrough in tunnel
  89 #define EL_LOOKBACK             2               //looking back at player
  90 #define EL_OUTSIDE              3               //flying outside for a while
  91 #define EL_STOPPED              4               //stopped, watching explosion
  92 #define EL_PANNING              5               //panning around, watching player
  93 #define EL_CHASING              6               //chasing player to station
  94
  95 #define SHORT_SEQUENCE  1               //if defined, end sequnce when panning starts
  96 //#define STATION_ENABLED       1               //if defined, load & use space station model
  97
  98 int Endlevel_sequence = 0;
  99
 100 extern fix player_speed;
 101
 102 int transition_segnum,exit_segnum;
 103
 104 object *endlevel_camera;
 105
 106 #define FLY_SPEED i2f(50)
 107
 108 void do_endlevel_flythrough(int n);
 109 void draw_stars();
 110 int find_exit_side(object *obj);
 111 void generate_starfield();
 112 void start_endlevel_flythrough(int n,object *obj,fix speed);
 113 void start_rendered_endlevel_sequence();
 114
 115 #ifdef D2_OEM
 116 char movie_table[] =    {       'a','a','a','a','d','d','d','d' };
 117 #else
 118 char movie_table[] =    {       'a','b','c',
 119                                                 #ifndef SHAREWARE
 120                                                         'a',
 121                                                         'd','f','d','f',
 122                                                         'g','h','i','g',
 123                                                         'j','k','l','j',
 124                                                         'm','o','m','o',
 125                                                         'p','q','p','q'
 126                                                 #endif
 127                                         };
 128 #endif
 129
 130 #define N_MOVIES (sizeof(movie_table) / sizeof(*movie_table))
 131
 132 #ifndef SHAREWARE
 133 #ifdef D2_OEM
 134 char movie_table_secret[] = {'a','d'};
 135 #else
 136 char movie_table_secret[] = {'a','d','g','j','m','p'};
 137 #endif
 138 #define N_MOVIES_SECRET (sizeof(movie_table_secret) / sizeof(*movie_table_secret))
 139 #else
 140 #define N_MOVIES_SECRET 0
 141 #endif
 142
 143
 144 #define FLY_ACCEL i2f(5)
 145
 146 fix cur_fly_speed,desired_fly_speed;
 147
 148 extern int matt_find_connect_side(int seg0,int seg1);
 149
 150 grs_bitmap *satellite_bitmap,*station_bitmap,*terrain_bitmap;   //!!*exit_bitmap,
 151 vms_vector satellite_pos,satellite_upvec;
 152 //!!grs_bitmap **exit_bitmap_list[1];
 153 int station_modelnum,exit_modelnum,destroyed_exit_modelnum;
 154
 155 vms_vector station_pos = {0xf8c4<<10,0x3c1c<<12,0x372<<10};
 156
 157 #ifdef STATION_ENABLED
 158 grs_bitmap *station_bitmap;
 159 grs_bitmap **station_bitmap_list[1];
 160 int station_modelnum;
 161 #endif
 162
 163 vms_vector mine_exit_point;
 164 vms_vector mine_ground_exit_point;
 165 vms_vector mine_side_exit_point;
 166 vms_matrix mine_exit_orient;
 167
 168 int outside_mine;
 169
 170 grs_bitmap terrain_bm_instance;
 171 grs_bitmap satellite_bm_instance;
 172
 173 //find delta between two angles
 174 fixang delta_ang(fixang a,fixang b)
 175 {
 176         fixang delta0,delta1;
 177
 178         return (abs(delta0 = a - b) < abs(delta1 = b - a)) ? delta0 : delta1;
 179
 180 }
 181
 182 //return though which side of seg0 is seg1
 183 int matt_find_connect_side(int seg0,int seg1)
 184 {
 185         segment *Seg=&Segments[seg0];
 186         int i;
 187
 188         for (i=MAX_SIDES_PER_SEGMENT;i--;) if (Seg->children[i]==seg1) return i;
 189
 190         return -1;
 191 }
 192
 193 extern int Kmatrix_nomovie_message;
 194
 195 #if defined(D2_OEM) || defined(COMPILATION)
 196 #define MOVIE_REQUIRED 0
 197 #else
 198 #define MOVIE_REQUIRED 1
 199 #endif
 200
 201 //returns movie played status.  see movie.h
 202 int start_endlevel_movie()
 203 {
 204         char movie_name[] = "esa.mve";
 205         int r;
 206         ubyte save_pal[768];
 207
 208         //Assert(PLAYING_BUILTIN_MISSION); //only play movie for built-in mission
 209
 210         //Assert(N_MOVIES >= Last_level);
 211         //Assert(N_MOVIES_SECRET >= -Last_secret_level);
 212
 213         if (!is_D2_OEM)
 214                 if (Current_level_num == Last_level)
 215                         return 1;   //don't play movie
 216
 217         if (Current_level_num > 0)
 218                 movie_name[2] = movie_table[Current_level_num-1];
 219         else {
 220                 #ifndef SHAREWARE
 221                         return 0;       //no escapes for secret level
 222                 #else
 223                         Error("Invalid level number <%d>",Current_level_num);
 224                 #endif
 225         }
 226
 227         memcpy(save_pal,gr_palette,768);
 228
 229         #ifndef SHAREWARE
 230                 r=PlayMovie(movie_name,(Game_mode & GM_MULTI)?0:MOVIE_REQUIRED);
 231         #else
 232                 return  0;      // movie not played for shareware
 233         #endif
 234
 235         if (Newdemo_state == ND_STATE_PLAYBACK) {
 236                 set_screen_mode(SCREEN_GAME);
 237                 memcpy(gr_palette,save_pal,768);
 238         }
 239
 240 #ifdef NETWORK
 241    if (r==MOVIE_NOT_PLAYED && (Game_mode & GM_MULTI))
 242           Kmatrix_nomovie_message=1;
 243         else
 244           Kmatrix_nomovie_message=0;
 245 #endif
 246
 247         return (r);
 248
 249 }
 250
 251 void
 252 free_endlevel_data()
 253 {
 254         if (terrain_bm_instance.bm_data)
 255                 d_free(terrain_bm_instance.bm_data);
 256
 257         if (satellite_bm_instance.bm_data)
 258                 d_free(satellite_bm_instance.bm_data);
 259 }
 260
 261 void init_endlevel()
 262 {
 263         //##satellite_bitmap = bm_load("earth.bbm");
 264         //##terrain_bitmap = bm_load("moon.bbm");
 265         //##
 266         //##load_terrain("matt5b.bbm");         //load bitmap as height array
 267         //##//load_terrain("ttest2.bbm");               //load bitmap as height array
 268
 269         #ifdef STATION_ENABLED
 270         station_bitmap = bm_load("steel3.bbm");
 271         station_bitmap_list[0] = &station_bitmap;
 272
 273         station_modelnum = load_polygon_model("station.pof",1,station_bitmap_list,NULL);
 274         #endif
 275
 276 //!!    exit_bitmap = bm_load("steel1.bbm");
 277 //!!    exit_bitmap_list[0] = &exit_bitmap;
 278
 279 //!!    exit_modelnum = load_polygon_model("exit01.pof",1,exit_bitmap_list,NULL);
 280 //!!    destroyed_exit_modelnum = load_polygon_model("exit01d.pof",1,exit_bitmap_list,NULL);
 281
 282         generate_starfield();
 283
 284         atexit(free_endlevel_data);
 285
 286         terrain_bm_instance.bm_data = satellite_bm_instance.bm_data = NULL;
 287 }
 288
 289 object external_explosion;
 290 int ext_expl_playing,mine_destroyed;
 291
 292 extern fix flash_scale;
 293
 294 vms_angvec exit_angles={-0xa00,0,0};
 295
 296 vms_matrix surface_orient;
 297
 298 int endlevel_data_loaded=0;
 299 extern char last_palette_loaded[];
 300
 301 void start_endlevel_sequence()
 302 {
 303         int     i;
 304         int movie_played = MOVIE_NOT_PLAYED;
 305
 306         if (Newdemo_state == ND_STATE_RECORDING)                // stop demo recording
 307                 Newdemo_state = ND_STATE_PAUSED;
 308
 309         if (Newdemo_state == ND_STATE_PLAYBACK) {               // don't do this if in playback mode
 310                 if (PLAYING_BUILTIN_MISSION) // only play movie for built-in mission
 311                         start_endlevel_movie();
 312                 strcpy(last_palette_loaded,"");         //force palette load next time
 313                 return;
 314         }
 315
 316         if (Player_is_dead || ConsoleObject->flags&OF_SHOULD_BE_DEAD)
 317                 return;                         //don't start if dead!
 318
 319         //      Dematerialize Buddy!
 320         for (i=0; i<=Highest_object_index; i++)
 321                 if (Objects[i].type == OBJ_ROBOT)
 322                         if (Robot_info[Objects[i].id].companion) {
 323                                 object_create_explosion(Objects[i].segnum, &Objects[i].pos, F1_0*7/2, VCLIP_POWERUP_DISAPPEARANCE );
 324                                 Objects[i].flags |= OF_SHOULD_BE_DEAD;
 325                         }
 326
 327         Players[Player_num].homing_object_dist = -F1_0; // Turn off homing sound.
 328
 329         reset_rear_view();              //turn off rear view if set
 330
 331 #ifdef NETWORK
 332         if (Game_mode & GM_MULTI) {
 333                 multi_send_endlevel_start(0);
 334                 network_do_frame(1, 1);
 335         }
 336 #endif
 337
 338         if (PLAYING_BUILTIN_MISSION) // only play movie for built-in mission
 339                 if (!(Game_mode & GM_MULTI))
 340                         movie_played = start_endlevel_movie();
 341
 342         if (!(Game_mode & GM_MULTI) && (movie_played == MOVIE_NOT_PLAYED) && endlevel_data_loaded)
 343         {   //don't have movie.  Do rendered sequence, if available
 344                 int exit_models_loaded = 0;
 345
 346                 if (Piggy_hamfile_version < 3)
 347                         exit_models_loaded = 1; // built-in for PC shareware
 348
 349                 else
 350                         exit_models_loaded = load_exit_models();
 351
 352                 if (exit_models_loaded)
 353                 {
 354                         start_rendered_endlevel_sequence();
 355                         return;
 356                 }
 357         }
 358
 359         //don't have movie or rendered sequence, fade out
 360         gr_palette_fade_out(gr_palette, 32, 0);
 361
 362         PlayerFinishedLevel(0);         //done with level
 363 }
 364
 365 static int cockpit_mode_save;
 366
 367 void start_rendered_endlevel_sequence()
 368 {
 369         int last_segnum,exit_side,tunnel_length;
 370
 371         {
 372                 int segnum,old_segnum,entry_side,i;
 373
 374                 //count segments in exit tunnel
 375
 376                 old_segnum = ConsoleObject->segnum;
 377                 exit_side = find_exit_side(ConsoleObject);
 378                 segnum = Segments[old_segnum].children[exit_side];
 379                 tunnel_length = 0;
 380                 do {
 381                         entry_side = matt_find_connect_side(segnum,old_segnum);
 382                         exit_side = Side_opposite[entry_side];
 383                         old_segnum = segnum;
 384                         segnum = Segments[segnum].children[exit_side];
 385                         tunnel_length++;
 386                 } while (segnum >= 0);
 387
 388                 if (segnum != -2) {
 389                         PlayerFinishedLevel(0);         //don't do special sequence
 390                         return;
 391                 }
 392
 393                 last_segnum = old_segnum;
 394
 395                 //now pick transition segnum 1/3 of the way in
 396
 397                 old_segnum = ConsoleObject->segnum;
 398                 exit_side = find_exit_side(ConsoleObject);
 399                 segnum = Segments[old_segnum].children[exit_side];
 400                 i=tunnel_length/3;
 401                 while (i--) {
 402
 403                         entry_side = matt_find_connect_side(segnum,old_segnum);
 404                         exit_side = Side_opposite[entry_side];
 405                         old_segnum = segnum;
 406                         segnum = Segments[segnum].children[exit_side];
 407                 }
 408                 transition_segnum = segnum;
 409
 410         }
 411
 412         cockpit_mode_save = Cockpit_mode;
 413
 414         #ifdef NETWORK
 415         if (Game_mode & GM_MULTI) {
 416                 multi_send_endlevel_start(0);
 417                 network_do_frame(1, 1);
 418         }
 419         #endif
 420
 421         #ifdef SHAREWARE
 422         Assert(last_segnum == exit_segnum);
 423         //      songs_play_song( SONG_ENDLEVEL, 0 );    // JTS: Until we get an exit song, just don't worry
 424         #endif
 425
 426         Endlevel_sequence = EL_FLYTHROUGH;
 427
 428         ConsoleObject->movement_type = MT_NONE;                 //movement handled by flythrough
 429         ConsoleObject->control_type = CT_NONE;
 430
 431         Game_suspended |= SUSP_ROBOTS;          //robots don't move
 432
 433         cur_fly_speed = desired_fly_speed = FLY_SPEED;
 434
 435         start_endlevel_flythrough(0,ConsoleObject,cur_fly_speed);               //initialize
 436
 437         HUD_init_message( TXT_EXIT_SEQUENCE );
 438
 439         outside_mine = ext_expl_playing = 0;
 440
 441         flash_scale = f1_0;
 442
 443         //init_endlevel();
 444
 445         mine_destroyed=0;
 446
 447 }
 448
 449 extern flythrough_data fly_objects[];
 450
 451 extern object *slew_obj;
 452
 453 vms_angvec player_angles,player_dest_angles;
 454 vms_angvec camera_desired_angles,camera_cur_angles;
 455
 456 #define CHASE_TURN_RATE (0x4000/4)              //max turn per second
 457
 458 //returns bitmask of which angles are at dest. bits 0,1,2 = p,b,h
 459 int chase_angles(vms_angvec *cur_angles,vms_angvec *desired_angles)
 460 {
 461         vms_angvec delta_angs,alt_angles,alt_delta_angs;
 462         fix total_delta,alt_total_delta;
 463         fix frame_turn;
 464         int mask=0;
 465
 466         delta_angs.p = desired_angles->p - cur_angles->p;
 467         delta_angs.h = desired_angles->h - cur_angles->h;
 468         delta_angs.b = desired_angles->b - cur_angles->b;
 469 //delta_angs.b = 0;
 470
 471 //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);
 472
 473         total_delta = abs(delta_angs.p) + abs(delta_angs.b) + abs(delta_angs.h);
 474
 475         alt_angles.p = f1_0/2 - cur_angles->p;
 476         alt_angles.b = cur_angles->b + f1_0/2;
 477         alt_angles.h = cur_angles->h + f1_0/2;
 478
 479         alt_delta_angs.p = desired_angles->p - alt_angles.p;
 480         alt_delta_angs.h = desired_angles->h - alt_angles.h;
 481         alt_delta_angs.b = desired_angles->b - alt_angles.b;
 482 //alt_delta_angs.b = 0;
 483
 484         alt_total_delta = abs(alt_delta_angs.p) + abs(alt_delta_angs.b) + abs(alt_delta_angs.h);
 485
 486 //printf("Total delta = %x, alt total_delta = %x\n",total_delta,alt_total_delta);
 487
 488         if (alt_total_delta < total_delta) {
 489                 //mprintf((0,"FLIPPING ANGLES!\n"));
 490                 //printf("FLIPPING ANGLES!\n");
 491                 *cur_angles = alt_angles;
 492                 delta_angs = alt_delta_angs;
 493         }
 494
 495         frame_turn = fixmul(FrameTime,CHASE_TURN_RATE);
 496
 497         if (abs(delta_angs.p) < frame_turn) {
 498                 cur_angles->p = desired_angles->p;
 499                 mask |= 1;
 500         }
 501         else
 502                 if (delta_angs.p > 0)
 503                         cur_angles->p += frame_turn;
 504                 else
 505                         cur_angles->p -= frame_turn;
 506
 507         if (abs(delta_angs.b) < frame_turn) {
 508                 cur_angles->b = desired_angles->b;
 509                 mask |= 2;
 510         }
 511         else
 512                 if (delta_angs.b > 0)
 513                         cur_angles->b += frame_turn;
 514                 else
 515                         cur_angles->b -= frame_turn;
 516 //cur_angles->b = 0;
 517
 518         if (abs(delta_angs.h) < frame_turn) {
 519                 cur_angles->h = desired_angles->h;
 520                 mask |= 4;
 521         }
 522         else
 523                 if (delta_angs.h > 0)
 524                         cur_angles->h += frame_turn;
 525                 else
 526                         cur_angles->h -= frame_turn;
 527
 528         return mask;
 529 }
 530
 531 void stop_endlevel_sequence()
 532 {
 533         Interpolation_method = 0;
 534
 535         gr_palette_fade_out(gr_palette, 32, 0);
 536
 537         select_cockpit(cockpit_mode_save);
 538
 539         Endlevel_sequence = EL_OFF;
 540
 541         PlayerFinishedLevel(0);
 542
 543 }
 544
 545 #define VCLIP_BIG_PLAYER_EXPLOSION      58
 546
 547 //--unused-- vms_vector upvec = {0,f1_0,0};
 548
 549 //find the angle between the player's heading & the station
 550 void get_angs_to_object(vms_angvec *av,vms_vector *targ_pos,vms_vector *cur_pos)
 551 {
 552         vms_vector tv;
 553
 554         vm_vec_sub(&tv,targ_pos,cur_pos);
 555
 556         vm_extract_angles_vector(av,&tv);
 557 }
 558
 559 void do_endlevel_frame()
 560 {
 561         static fix timer;
 562         static fix bank_rate;
 563         vms_vector save_last_pos;
 564         static fix explosion_wait1=0;
 565         static fix explosion_wait2=0;
 566         static fix ext_expl_halflife;
 567
 568         save_last_pos = ConsoleObject->last_pos;        //don't let move code change this
 569         object_move_all();
 570         ConsoleObject->last_pos = save_last_pos;
 571
 572         if (ext_expl_playing) {
 573
 574                 external_explosion.lifeleft -= FrameTime;
 575                 do_explosion_sequence(&external_explosion);
 576
 577                 if (external_explosion.lifeleft < ext_expl_halflife)
 578                         mine_destroyed = 1;
 579
 580                 if (external_explosion.flags & OF_SHOULD_BE_DEAD)
 581                         ext_expl_playing = 0;
 582         }
 583
 584         if (cur_fly_speed != desired_fly_speed) {
 585                 fix delta = desired_fly_speed - cur_fly_speed;
 586                 fix frame_accel = fixmul(FrameTime,FLY_ACCEL);
 587
 588                 if (abs(delta) < frame_accel)
 589                         cur_fly_speed = desired_fly_speed;
 590                 else
 591                         if (delta > 0)
 592                                 cur_fly_speed += frame_accel;
 593                         else
 594                                 cur_fly_speed -= frame_accel;
 595         }
 596
 597         //do big explosions
 598         if (!outside_mine) {
 599
 600                 if (Endlevel_sequence==EL_OUTSIDE) {
 601                         vms_vector tvec;
 602
 603                         vm_vec_sub(&tvec,&ConsoleObject->pos,&mine_side_exit_point);
 604
 605                         if (vm_vec_dot(&tvec,&mine_exit_orient.fvec) > 0) {
 606                                 object *tobj;
 607
 608                                 outside_mine = 1;
 609
 610                                 tobj = object_create_explosion(exit_segnum,&mine_side_exit_point,i2f(50),VCLIP_BIG_PLAYER_EXPLOSION);
 611
 612                                 if (tobj) {
 613                                         external_explosion = *tobj;
 614
 615                                         tobj->flags |= OF_SHOULD_BE_DEAD;
 616
 617                                         flash_scale = 0;        //kill lights in mine
 618
 619                                         ext_expl_halflife = tobj->lifeleft;
 620
 621                                         ext_expl_playing = 1;
 622                                 }
 623
 624                                 digi_link_sound_to_pos( SOUND_BIG_ENDLEVEL_EXPLOSION, exit_segnum, 0, &mine_side_exit_point, 0, i2f(3)/4 );
 625                         }
 626                 }
 627
 628                 //do explosions chasing player
 629                 if ((explosion_wait1-=FrameTime) < 0) {
 630                         vms_vector tpnt;
 631                         int segnum;
 632                         object *expl;
 633                         static int sound_count;
 634
 635                         vm_vec_scale_add(&tpnt,&ConsoleObject->pos,&ConsoleObject->orient.fvec,-ConsoleObject->size*5);
 636                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*15);
 637                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*15);
 638
 639                         segnum = find_point_seg(&tpnt,ConsoleObject->segnum);
 640
 641                         if (segnum != -1) {
 642                                 expl = object_create_explosion(segnum,&tpnt,i2f(20),VCLIP_BIG_PLAYER_EXPLOSION);
 643                                 if (d_rand()<10000 || ++sound_count==7) {               //pseudo-random
 644                                         digi_link_sound_to_pos( SOUND_TUNNEL_EXPLOSION, segnum, 0, &tpnt, 0, F1_0 );
 645                                         sound_count=0;
 646                                 }
 647                         }
 648
 649                         explosion_wait1 = 0x2000 + d_rand()/4;
 650
 651                 }
 652         }
 653
 654         //do little explosions on walls
 655         if (Endlevel_sequence >= EL_FLYTHROUGH && Endlevel_sequence < EL_OUTSIDE)
 656                 if ((explosion_wait2-=FrameTime) < 0) {
 657                         vms_vector tpnt;
 658                         fvi_query fq;
 659                         fvi_info hit_data;
 660
 661                         //create little explosion on wall
 662
 663                         vm_vec_copy_scale(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*100);
 664                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*100);
 665                         vm_vec_add2(&tpnt,&ConsoleObject->pos);
 666
 667                         if (Endlevel_sequence == EL_FLYTHROUGH)
 668                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*200);
 669                         else
 670                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*60);
 671
 672                         //find hit point on wall
 673
 674                         fq.p0 = &ConsoleObject->pos;
 675                         fq.p1 = &tpnt;
 676                         fq.startseg = ConsoleObject->segnum;
 677                         fq.rad = 0;
 678                         fq.thisobjnum = 0;
 679                         fq.ignore_obj_list = NULL;
 680                         fq.flags = 0;
 681
 682                         find_vector_intersection(&fq,&hit_data);
 683
 684                         if (hit_data.hit_type==HIT_WALL && hit_data.hit_seg!=-1)
 685                                 object_create_explosion(hit_data.hit_seg,&hit_data.hit_pnt,i2f(3)+d_rand()*6,VCLIP_SMALL_EXPLOSION);
 686
 687                         explosion_wait2 = (0xa00 + d_rand()/8)/2;
 688                 }
 689
 690         switch (Endlevel_sequence) {
 691
 692                 case EL_OFF: return;
 693
 694                 case EL_FLYTHROUGH: {
 695
 696                         do_endlevel_flythrough(0);
 697
 698                         if (ConsoleObject->segnum == transition_segnum) {
 699
 700                                 if (PLAYING_BUILTIN_MISSION && start_endlevel_movie() != MOVIE_NOT_PLAYED)
 701                                         stop_endlevel_sequence();
 702                                 else {
 703                                         int objnum;
 704
 705                                         //songs_play_song( SONG_ENDLEVEL, 0 );
 706
 707                                         Endlevel_sequence = EL_LOOKBACK;
 708
 709                                         objnum = obj_create(OBJ_CAMERA, 0,
 710                                                             ConsoleObject->segnum,&ConsoleObject->pos,&ConsoleObject->orient,0,
 711                                                             CT_NONE,MT_NONE,RT_NONE);
 712
 713                                         if (objnum == -1) { //can't get object, so abort
 714                                                 mprintf((1, "Can't get object for endlevel sequence.  Aborting endlevel sequence.\n"));
 715                                                 stop_endlevel_sequence();
 716                                                 return;
 717                                         }
 718
 719                                         Viewer = endlevel_camera = &Objects[objnum];
 720
 721                                         select_cockpit(CM_LETTERBOX);
 722
 723                                         fly_objects[1] = fly_objects[0];
 724                                         fly_objects[1].obj = endlevel_camera;
 725                                         fly_objects[1].speed = (5*cur_fly_speed)/4;
 726                                         fly_objects[1].offset_frac = 0x4000;
 727
 728                                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,i2f(7));
 729
 730                                         timer=0x20000;
 731
 732                                 }
 733                         }
 734
 735                         break;
 736                 }
 737
 738
 739                 case EL_LOOKBACK: {
 740
 741                         do_endlevel_flythrough(0);
 742                         do_endlevel_flythrough(1);
 743
 744                         if (timer>0) {
 745
 746                                 timer -= FrameTime;
 747
 748                                 if (timer < 0)          //reduce speed
 749                                         fly_objects[1].speed = fly_objects[0].speed;
 750                         }
 751
 752                         if (endlevel_camera->segnum == exit_segnum) {
 753                                 vms_angvec cam_angles,exit_seg_angles;
 754
 755                                 Endlevel_sequence = EL_OUTSIDE;
 756
 757                                 timer = i2f(2);
 758
 759                                 vm_vec_negate(&endlevel_camera->orient.fvec);
 760                                 vm_vec_negate(&endlevel_camera->orient.rvec);
 761
 762                                 vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 763                                 vm_extract_angles_matrix(&exit_seg_angles,&mine_exit_orient);
 764                                 bank_rate = (-exit_seg_angles.b - cam_angles.b)/2;
 765
 766                                 ConsoleObject->control_type = endlevel_camera->control_type = CT_NONE;
 767
 768 #ifdef SLEW_ON
 769  slew_obj = endlevel_camera;
 770 #endif
 771                         }
 772
 773                         break;
 774                 }
 775
 776                 case EL_OUTSIDE: {
 777                         #ifndef SLEW_ON
 778                         vms_angvec cam_angles;
 779                         #endif
 780
 781                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 782 #ifndef SLEW_ON
 783                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,-2*cur_fly_speed));
 784                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.uvec,fixmul(FrameTime,-cur_fly_speed/10));
 785
 786                         vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 787                         cam_angles.b += fixmul(bank_rate,FrameTime);
 788                         vm_angles_2_matrix(&endlevel_camera->orient,&cam_angles);
 789 #endif
 790
 791                         timer -= FrameTime;
 792
 793                         if (timer < 0) {
 794
 795                                 Endlevel_sequence = EL_STOPPED;
 796
 797                                 vm_extract_angles_matrix(&player_angles,&ConsoleObject->orient);
 798
 799                                 timer = i2f(3);
 800
 801                         }
 802
 803                         break;
 804                 }
 805
 806                 case EL_STOPPED: {
 807
 808                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 809                         chase_angles(&player_angles,&player_dest_angles);
 810                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 811
 812                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 813
 814                         timer -= FrameTime;
 815
 816                         if (timer < 0) {
 817
 818                                 #ifdef SLEW_ON
 819                                 slew_obj = endlevel_camera;
 820                                 _do_slew_movement(endlevel_camera,1,1);
 821                                 timer += FrameTime;             //make time stop
 822                                 break;
 823                                 #else
 824
 825                                 #ifdef SHORT_SEQUENCE
 826
 827                                 stop_endlevel_sequence();
 828
 829                                 #else
 830                                 Endlevel_sequence = EL_PANNING;
 831
 832                                 vm_extract_angles_matrix(&camera_cur_angles,&endlevel_camera->orient);
 833
 834
 835                                 timer = i2f(3);
 836
 837                                 if (Game_mode & GM_MULTI) { // try to skip part of the seq if multiplayer
 838                                         stop_endlevel_sequence();
 839                                         return;
 840                                 }
 841
 842                                 //mprintf((0,"Switching to pan...\n"));
 843                                 #endif          //SHORT_SEQUENCE
 844                                 #endif          //SLEW_ON
 845
 846                         }
 847                         break;
 848                 }
 849
 850                 #ifndef SHORT_SEQUENCE
 851                 case EL_PANNING: {
 852                         #ifndef SLEW_ON
 853                         int mask;
 854                         #endif
 855
 856                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 857                         chase_angles(&player_angles,&player_dest_angles);
 858                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 859                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 860
 861                         #ifdef SLEW_ON
 862                         _do_slew_movement(endlevel_camera,1,1);
 863                         #else
 864
 865                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 866                         mask = chase_angles(&camera_cur_angles,&camera_desired_angles);
 867                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 868
 869                         if ((mask&5) == 5) {
 870
 871                                 vms_vector tvec;
 872
 873                                 Endlevel_sequence = EL_CHASING;
 874
 875                                 vm_vec_normalized_dir_quick(&tvec,&station_pos,&ConsoleObject->pos);
 876                                 vm_vector_2_matrix(&ConsoleObject->orient,&tvec,&surface_orient.uvec,NULL);
 877
 878                                 desired_fly_speed *= 2;
 879
 880                                 //mprintf((0,"Switching to chase...\n"));
 881
 882                         }
 883                         #endif
 884
 885                         break;
 886                 }
 887
 888                 case EL_CHASING: {
 889                         fix d,speed_scale;
 890
 891                         #ifdef SLEW_ON
 892                         _do_slew_movement(endlevel_camera,1,1);
 893                         #endif
 894
 895                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 896                         chase_angles(&camera_cur_angles,&camera_desired_angles);
 897
 898                         #ifndef SLEW_ON
 899                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 900                         #endif
 901
 902                         d = vm_vec_dist_quick(&ConsoleObject->pos,&endlevel_camera->pos);
 903
 904                         speed_scale = fixdiv(d,i2f(0x20));
 905                         if (d<f1_0) d=f1_0;
 906
 907                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 908                         chase_angles(&player_angles,&player_dest_angles);
 909                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 910
 911                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 912                         #ifndef SLEW_ON
 913                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,fixmul(speed_scale,cur_fly_speed)));
 914
 915                         if (vm_vec_dist(&ConsoleObject->pos,&station_pos) < i2f(10))
 916                                 stop_endlevel_sequence();
 917                         #endif
 918
 919                         break;
 920
 921                 }
 922                 #endif          //ifdef SHORT_SEQUENCE
 923
 924         }
 925 }
 926
 927
 928 #define MIN_D 0x100
 929
 930 //find which side to fly out of
 931 int find_exit_side(object *obj)
 932 {
 933         int i;
 934         vms_vector prefvec,segcenter,sidevec;
 935         fix best_val=-f2_0;
 936         int best_side;
 937         segment *pseg = &Segments[obj->segnum];
 938
 939         //find exit side
 940
 941         vm_vec_normalized_dir_quick(&prefvec,&obj->pos,&obj->last_pos);
 942
 943         compute_segment_center(&segcenter,pseg);
 944
 945         best_side=-1;
 946         for (i=MAX_SIDES_PER_SEGMENT;--i >= 0;) {
 947                 fix d;
 948
 949                 if (pseg->children[i]!=-1) {
 950
 951                         compute_center_point_on_side(&sidevec,pseg,i);
 952                         vm_vec_normalized_dir_quick(&sidevec,&sidevec,&segcenter);
 953                         d = vm_vec_dotprod(&sidevec,&prefvec);
 954
 955                         if (labs(d) < MIN_D) d=0;
 956
 957                         if (d > best_val) {best_val=d; best_side=i;}
 958
 959                 }
 960         }
 961
 962         Assert(best_side!=-1);
 963
 964         return best_side;
 965 }
 966
 967 extern fix Render_zoom;                                                 //the player's zoom factor
 968
 969 extern vms_vector Viewer_eye;   //valid during render
 970
 971 void draw_exit_model()
 972 {
 973         vms_vector model_pos;
 974         int f=15,u=0;   //21;
 975
 976         vm_vec_scale_add(&model_pos,&mine_exit_point,&mine_exit_orient.fvec,i2f(f));
 977         vm_vec_scale_add2(&model_pos,&mine_exit_orient.uvec,i2f(u));
 978
 979         draw_polygon_model(&model_pos,&mine_exit_orient,NULL,(mine_destroyed)?destroyed_exit_modelnum:exit_modelnum,0,f1_0,NULL,NULL);
 980
 981 }
 982
 983 int exit_point_bmx,exit_point_bmy;
 984
 985 fix satellite_size = i2f(400);
 986
 987 #define SATELLITE_DIST          i2f(1024)
 988 #define SATELLITE_WIDTH         satellite_size
 989 #define SATELLITE_HEIGHT        ((satellite_size*9)/4)          //((satellite_size*5)/2)
 990
 991 void render_external_scene(fix eye_offset)
 992 {
 993
 994         Viewer_eye = Viewer->pos;
 995
 996         if (eye_offset)
 997                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
 998
 999         g3_set_view_matrix(&Viewer->pos,&Viewer->orient,Render_zoom);
1000
1001         //g3_draw_horizon(BM_XRGB(0,0,0),BM_XRGB(16,16,16));            //,-1);
1002         gr_clear_canvas(BM_XRGB(0,0,0));
1003
1004         g3_start_instance_matrix(&vmd_zero_vector,&surface_orient);
1005         draw_stars();
1006         g3_done_instance();
1007
1008         {       //draw satellite
1009
1010                 vms_vector delta;
1011                 g3s_point p,top_pnt;
1012
1013                 g3_rotate_point(&p,&satellite_pos);
1014                 g3_rotate_delta_vec(&delta,&satellite_upvec);
1015
1016                 g3_add_delta_vec(&top_pnt,&p,&delta);
1017
1018                 if (! (p.p3_codes & CC_BEHIND)) {
1019                         int save_im = Interpolation_method;
1020                         //p.p3_flags &= ~PF_PROJECTED;
1021                         //g3_project_point(&p);
1022                         if (! (p.p3_flags & PF_OVERFLOW)) {
1023                                 Interpolation_method = 0;
1024                                 //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1025                                 g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1026                                 Interpolation_method = save_im;
1027                         }
1028                 }
1029         }
1030
1031         #ifdef STATION_ENABLED
1032         draw_polygon_model(&station_pos,&vmd_identity_matrix,NULL,station_modelnum,0,f1_0,NULL,NULL);
1033         #endif
1034
1035         render_terrain(&mine_ground_exit_point,exit_point_bmx,exit_point_bmy);
1036
1037         draw_exit_model();
1038         if (ext_expl_playing)
1039                 draw_fireball(&external_explosion);
1040
1041         Lighting_on=0;
1042         render_object(ConsoleObject);
1043         Lighting_on=1;
1044 }
1045
1046 #define MAX_STARS 500
1047
1048 vms_vector stars[MAX_STARS];
1049
1050 void generate_starfield()
1051 {
1052         int i;
1053
1054         for (i=0;i<MAX_STARS;i++) {
1055
1056                 stars[i].x = (d_rand() - RAND_MAX/2) << 14;
1057                 stars[i].z = (d_rand() - RAND_MAX/2) << 14;
1058                 stars[i].y = (d_rand()/2) << 14;
1059
1060         }
1061 }
1062
1063 void draw_stars()
1064 {
1065         int i;
1066         int intensity=31;
1067         g3s_point p;
1068
1069         for (i=0;i<MAX_STARS;i++) {
1070
1071                 if ((i&63) == 0) {
1072                         gr_setcolor(BM_XRGB(intensity,intensity,intensity));
1073                         intensity-=3;
1074                 }
1075
1076                 //g3_rotate_point(&p,&stars[i]);
1077                 g3_rotate_delta_vec(&p.p3_vec,&stars[i]);
1078                 g3_code_point(&p);
1079
1080                 if (p.p3_codes == 0) {
1081
1082                         p.p3_flags &= ~PF_PROJECTED;
1083
1084                         g3_project_point(&p);
1085
1086                         gr_pixel(f2i(p.p3_sx),f2i(p.p3_sy));
1087                 }
1088         }
1089
1090 //@@    {
1091 //@@            vms_vector delta;
1092 //@@            g3s_point top_pnt;
1093 //@@
1094 //@@            g3_rotate_point(&p,&satellite_pos);
1095 //@@            g3_rotate_delta_vec(&delta,&satellite_upvec);
1096 //@@
1097 //@@            g3_add_delta_vec(&top_pnt,&p,&delta);
1098 //@@
1099 //@@            if (! (p.p3_codes & CC_BEHIND)) {
1100 //@@                    int save_im = Interpolation_method;
1101 //@@                    Interpolation_method = 0;
1102 //@@                    //p.p3_flags &= ~PF_PROJECTED;
1103 //@@                    g3_project_point(&p);
1104 //@@                    if (! (p.p3_flags & PF_OVERFLOW))
1105 //@@                            //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1106 //@@                            g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1107 //@@                    Interpolation_method = save_im;
1108 //@@            }
1109 //@@    }
1110
1111 }
1112
1113 void endlevel_render_mine(fix eye_offset)
1114 {
1115         int start_seg_num;
1116
1117         Viewer_eye = Viewer->pos;
1118
1119         if (Viewer->type == OBJ_PLAYER )
1120                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.fvec,(Viewer->size*3)/4);
1121
1122         if (eye_offset)
1123                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1124
1125         #ifdef EDITOR
1126         if (Function_mode==FMODE_EDITOR)
1127                 Viewer_eye = Viewer->pos;
1128         #endif
1129
1130         if (Endlevel_sequence >= EL_OUTSIDE) {
1131
1132                 start_seg_num = exit_segnum;
1133         }
1134         else {
1135                 start_seg_num = find_point_seg(&Viewer_eye,Viewer->segnum);
1136
1137                 if (start_seg_num==-1)
1138                         start_seg_num = Viewer->segnum;
1139         }
1140
1141         if (Endlevel_sequence == EL_LOOKBACK) {
1142                 vms_matrix headm,viewm;
1143                 vms_angvec angles = {0,0,0x7fff};
1144
1145                 vm_angles_2_matrix(&headm,&angles);
1146                 vm_matrix_x_matrix(&viewm,&Viewer->orient,&headm);
1147                 g3_set_view_matrix(&Viewer_eye,&viewm,Render_zoom);
1148         }
1149         else
1150                 g3_set_view_matrix(&Viewer_eye,&Viewer->orient,Render_zoom);
1151
1152         render_mine(start_seg_num,eye_offset, 0);
1153 }
1154
1155 void render_endlevel_frame(fix eye_offset)
1156 {
1157
1158         g3_start_frame();
1159
1160         if (Endlevel_sequence < EL_OUTSIDE)
1161                 endlevel_render_mine(eye_offset);
1162         else
1163                 render_external_scene(eye_offset);
1164
1165         g3_end_frame();
1166
1167 }
1168
1169
1170 ///////////////////////// copy of flythrough code for endlevel
1171
1172
1173 #define MAX_FLY_OBJECTS 2
1174
1175 flythrough_data fly_objects[MAX_FLY_OBJECTS];
1176
1177 flythrough_data *flydata;
1178
1179 int matt_find_connect_side(int seg0,int seg1);
1180
1181 void compute_segment_center(vms_vector *vp,segment *sp);
1182
1183 fixang delta_ang(fixang a,fixang b);
1184 fixang interp_angle(fixang dest,fixang src,fixang step);
1185
1186 #define DEFAULT_SPEED i2f(16)
1187
1188 #define MIN_D 0x100
1189
1190 //if speed is zero, use default speed
1191 void start_endlevel_flythrough(int n,object *obj,fix speed)
1192 {
1193         flydata = &fly_objects[n];
1194
1195         flydata->obj = obj;
1196
1197         flydata->first_time = 1;
1198
1199         flydata->speed = speed?speed:DEFAULT_SPEED;
1200
1201         flydata->offset_frac = 0;
1202 }
1203
1204 static vms_angvec *angvec_add2_scale(vms_angvec *dest,vms_vector *src,fix s)
1205 {
1206         dest->p += fixmul(src->x,s);
1207         dest->b  += fixmul(src->z,s);
1208         dest->h  += fixmul(src->y,s);
1209
1210         return dest;
1211 }
1212
1213 #define MAX_ANGSTEP     0x4000          //max turn per second
1214
1215 #define MAX_SLIDE_PER_SEGMENT 0x10000
1216
1217 void do_endlevel_flythrough(int n)
1218 {
1219         object *obj;
1220         segment *pseg;
1221         int old_player_seg;
1222
1223         flydata = &fly_objects[n];
1224         obj = flydata->obj;
1225
1226         old_player_seg = obj->segnum;
1227
1228         //move the player for this frame
1229
1230         if (!flydata->first_time) {
1231
1232                 vm_vec_scale_add2(&obj->pos,&flydata->step,FrameTime);
1233                 angvec_add2_scale(&flydata->angles,&flydata->angstep,FrameTime);
1234
1235                 vm_angles_2_matrix(&obj->orient,&flydata->angles);
1236         }
1237
1238         //check new player seg
1239
1240         update_object_seg(obj);
1241         pseg = &Segments[obj->segnum];
1242
1243         if (flydata->first_time || obj->segnum != old_player_seg) {             //moved into new seg
1244                 vms_vector curcenter,nextcenter;
1245                 fix step_size,seg_time;
1246                 short entry_side,exit_side = -1;//what sides we entry and leave through
1247                 vms_vector dest_point;          //where we are heading (center of exit_side)
1248                 vms_angvec dest_angles;         //where we want to be pointing
1249                 vms_matrix dest_orient;
1250                 int up_side=0;
1251
1252                 entry_side=0;
1253
1254                 //find new exit side
1255
1256                 if (!flydata->first_time) {
1257
1258                         entry_side = matt_find_connect_side(obj->segnum,old_player_seg);
1259                         exit_side = Side_opposite[entry_side];
1260                 }
1261
1262                 if (flydata->first_time || entry_side==-1 || pseg->children[exit_side]==-1)
1263                         exit_side = find_exit_side(obj);
1264
1265                 {                                                                               //find closest side to align to
1266                         fix d,largest_d=-f1_0;
1267                         int i;
1268
1269                         for (i=0;i<6;i++) {
1270                                 #ifdef COMPACT_SEGS
1271                                 vms_vector v1;
1272                                 get_side_normal(pseg, i, 0, &v1 );
1273                                 d = vm_vec_dot(&v1,&flydata->obj->orient.uvec);
1274                                 #else
1275                                 d = vm_vec_dot(&pseg->sides[i].normals[0],&flydata->obj->orient.uvec);
1276                                 #endif
1277                                 if (d > largest_d) {largest_d = d; up_side=i;}
1278                         }
1279
1280                 }
1281
1282                 //update target point & angles
1283
1284                 compute_center_point_on_side(&dest_point,pseg,exit_side);
1285
1286                 //update target point and movement points
1287
1288                 //offset object sideways
1289                 if (flydata->offset_frac) {
1290                         int s0=-1,s1=0,i;
1291                         vms_vector s0p,s1p;
1292                         fix dist;
1293
1294                         for (i=0;i<6;i++)
1295                                 if (i!=entry_side && i!=exit_side && i!=up_side && i!=Side_opposite[up_side])
1296                                  {
1297                                         if (s0==-1)
1298                                                 s0 = i;
1299                                         else
1300                                                 s1 = i;
1301                                  }
1302
1303                         compute_center_point_on_side(&s0p,pseg,s0);
1304                         compute_center_point_on_side(&s1p,pseg,s1);
1305                         dist = fixmul(vm_vec_dist(&s0p,&s1p),flydata->offset_frac);
1306
1307                         if (dist-flydata->offset_dist > MAX_SLIDE_PER_SEGMENT)
1308                                 dist = flydata->offset_dist + MAX_SLIDE_PER_SEGMENT;
1309
1310                         flydata->offset_dist = dist;
1311
1312                         vm_vec_scale_add2(&dest_point,&obj->orient.rvec,dist);
1313
1314                 }
1315
1316                 vm_vec_sub(&flydata->step,&dest_point,&obj->pos);
1317                 step_size = vm_vec_normalize_quick(&flydata->step);
1318                 vm_vec_scale(&flydata->step,flydata->speed);
1319
1320                 compute_segment_center(&curcenter,pseg);
1321                 compute_segment_center(&nextcenter,&Segments[pseg->children[exit_side]]);
1322                 vm_vec_sub(&flydata->headvec,&nextcenter,&curcenter);
1323
1324                 #ifdef COMPACT_SEGS
1325                 {
1326                         vms_vector _v1;
1327                         get_side_normal(pseg, up_side, 0, &_v1 );
1328                         vm_vector_2_matrix(&dest_orient,&flydata->headvec,&_v1,NULL);
1329                 }
1330                 #else
1331                 vm_vector_2_matrix(&dest_orient,&flydata->headvec,&pseg->sides[up_side].normals[0],NULL);
1332                 #endif
1333                 vm_extract_angles_matrix(&dest_angles,&dest_orient);
1334
1335                 if (flydata->first_time)
1336                         vm_extract_angles_matrix(&flydata->angles,&obj->orient);
1337
1338                 seg_time = fixdiv(step_size,flydata->speed);    //how long through seg
1339
1340                 if (seg_time) {
1341                         flydata->angstep.x = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.p,dest_angles.p),seg_time)));
1342                         flydata->angstep.z = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.b,dest_angles.b),seg_time)));
1343                         flydata->angstep.y = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.h,dest_angles.h),seg_time)));
1344
1345                 }
1346                 else {
1347                         flydata->angles = dest_angles;
1348                         flydata->angstep.x = flydata->angstep.y = flydata->angstep.z = 0;
1349                 }
1350         }
1351
1352         flydata->first_time=0;
1353 }
1354
1355 #define JOY_NULL 15
1356 #define ROT_SPEED 8             //rate of rotation while key held down
1357 #define VEL_SPEED (15)  //rate of acceleration while key held down
1358
1359 extern short old_joy_x,old_joy_y;       //position last time around
1360
1361 #include "key.h"
1362 #include "joy.h"
1363
1364 #ifdef SLEW_ON          //this is a special routine for slewing around external scene
1365 int _do_slew_movement(object *obj, int check_keys, int check_joy )
1366 {
1367         int moved = 0;
1368         vms_vector svel, movement;                              //scaled velocity (per this frame)
1369         vms_matrix rotmat,new_pm;
1370         int joy_x,joy_y,btns;
1371         int joyx_moved,joyy_moved;
1372         vms_angvec rotang;
1373
1374         if (keyd_pressed[KEY_PAD5])
1375                 vm_vec_zero(&obj->phys_info.velocity);
1376
1377         if (check_keys) {
1378                 obj->phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD9) - key_down_time(KEY_PAD7));
1379                 obj->phys_info.velocity.y += VEL_SPEED * (key_down_time(KEY_PADMINUS) - key_down_time(KEY_PADPLUS));
1380                 obj->phys_info.velocity.z += VEL_SPEED * (key_down_time(KEY_PAD8) - key_down_time(KEY_PAD2));
1381
1382                 rotang.pitch =  (key_down_time(KEY_LBRACKET) - key_down_time(KEY_RBRACKET))/ROT_SPEED;
1383                 rotang.bank  = (key_down_time(KEY_PAD1) - key_down_time(KEY_PAD3))/ROT_SPEED;
1384                 rotang.head  = (key_down_time(KEY_PAD6) - key_down_time(KEY_PAD4))/ROT_SPEED;
1385         }
1386         else
1387                 rotang.pitch = rotang.bank  = rotang.head  = 0;
1388
1389         //check for joystick movement
1390
1391         if (check_joy && joy_present)   {
1392                 joy_get_pos(&joy_x,&joy_y);
1393                 btns=joy_get_btns();
1394
1395                 joyx_moved = (abs(joy_x - old_joy_x)>JOY_NULL);
1396                 joyy_moved = (abs(joy_y - old_joy_y)>JOY_NULL);
1397
1398                 if (abs(joy_x) < JOY_NULL) joy_x = 0;
1399                 if (abs(joy_y) < JOY_NULL) joy_y = 0;
1400
1401                 if (btns)
1402                         if (!rotang.pitch) rotang.pitch = fixmul(-joy_y * 512,FrameTime); else;
1403                 else
1404                         if (joyy_moved) obj->phys_info.velocity.z = -joy_y * 8192;
1405
1406                 if (!rotang.head) rotang.head = fixmul(joy_x * 512,FrameTime);
1407
1408                 if (joyx_moved) old_joy_x = joy_x;
1409                 if (joyy_moved) old_joy_y = joy_y;
1410         }
1411
1412         moved = rotang.pitch | rotang.bank | rotang.head;
1413
1414         vm_angles_2_matrix(&rotmat,&rotang);
1415         vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
1416         obj->orient = new_pm;
1417         vm_transpose_matrix(&new_pm);           //make those columns rows
1418
1419         moved |= obj->phys_info.velocity.x | obj->phys_info.velocity.y | obj->phys_info.velocity.z;
1420
1421         svel = obj->phys_info.velocity;
1422         vm_vec_scale(&svel,FrameTime);          //movement in this frame
1423         vm_vec_rotate(&movement,&svel,&new_pm);
1424
1425         vm_vec_add2(&obj->pos,&movement);
1426
1427         moved |= (movement.x || movement.y || movement.z);
1428
1429         return moved;
1430 }
1431 #endif
1432
1433 #define LINE_LEN        80
1434 #define NUM_VARS        8
1435
1436 #define STATION_DIST    i2f(1024)
1437
1438 int convert_ext( char *dest, char *ext )
1439 {
1440         char *t;
1441
1442         t = strchr(dest,'.');
1443
1444         if (t && (t-dest <= 8)) {
1445                 t[1] = ext[0];
1446                 t[2] = ext[1];
1447                 t[3] = ext[2];
1448                 return 1;
1449         }
1450         else
1451                 return 0;
1452 }
1453
1454 //called for each level to load & setup the exit sequence
1455 void load_endlevel_data(int level_num)
1456 {
1457         char filename[13];
1458         char line[LINE_LEN],*p;
1459         CFILE *ifile;
1460         int var,segnum,sidenum;
1461         int exit_side = 0;
1462         int have_binary = 0;
1463
1464         endlevel_data_loaded = 0;               //not loaded yet
1465
1466 try_again:
1467         ;
1468
1469         if (level_num<0)                //secret level
1470                 strcpy(filename,Secret_level_names[-level_num-1]);
1471         else                                    //normal level
1472                 strcpy(filename,Level_names[level_num-1]);
1473
1474         if (!convert_ext(filename,"END"))
1475                 Error("Error converting filename <%s> for endlevel data\n",filename);
1476
1477         ifile = cfopen(filename,"rb");
1478
1479         if (!ifile) {
1480
1481                 convert_ext(filename,"txb");
1482
1483                 ifile = cfopen(filename,"rb");
1484
1485                 if (!ifile) {
1486                         if (level_num==1) {
1487                                 con_printf(CON_DEBUG, "Cannot load file text of binary version of <%s>\n",filename);
1488                                 endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1489                                 return;
1490                         }
1491                         else {
1492                                 level_num = 1;
1493                                 goto try_again;
1494                         }
1495                 }
1496
1497                 have_binary = 1;
1498         }
1499
1500         //ok...this parser is pretty simple.  It ignores comments, but
1501         //everything else must be in the right place
1502
1503         var = 0;
1504
1505         while (cfgets(line,LINE_LEN,ifile)) {
1506
1507                 if (have_binary)
1508                         decode_text_line (line);
1509
1510                 if ((p=strchr(line,';'))!=NULL)
1511                         *p = 0;         //cut off comment
1512
1513                 for (p=line+strlen(line);p>line && isspace(*p);*p--=0);
1514                 for (p=line;isspace(*p);p++);
1515
1516                 if (!*p)                //empty line
1517                         continue;
1518
1519                 switch (var) {
1520
1521                         case 0: {                                               //ground terrain
1522                                 int iff_error;
1523                                 ubyte pal[768];
1524
1525                                 if (terrain_bm_instance.bm_data)
1526                                         d_free(terrain_bm_instance.bm_data);
1527
1528                                 Assert(terrain_bm_instance.bm_data == NULL);
1529
1530                                 iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
1531                                 if (iff_error != IFF_NO_ERROR) {
1532                                         Warning("Can't load exit terrain from file %s: IFF error: %s",
1533                                                 p, iff_errormsg(iff_error));
1534                                         endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1535                                         return;
1536                                 }
1537
1538                                 terrain_bitmap = &terrain_bm_instance;
1539
1540                                 gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
1541
1542                                 break;
1543                         }
1544
1545                         case 1:                                                 //height map
1546
1547                                 load_terrain(p);
1548                                 break;
1549
1550
1551                         case 2:
1552
1553                                 sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
1554                                 break;
1555
1556                         case 3:                                                 //exit heading
1557
1558                                 exit_angles.h = i2f(atoi(p))/360;
1559                                 break;
1560
1561                         case 4: {                                               //planet bitmap
1562                                 int iff_error;
1563                                 ubyte pal[768];
1564
1565                                 if (satellite_bm_instance.bm_data)
1566                                         d_free(satellite_bm_instance.bm_data);
1567
1568                                 iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
1569                                 if (iff_error != IFF_NO_ERROR) {
1570                                         Warning("Can't load exit satellite from file %s: IFF error: %s",
1571                                                 p, iff_errormsg(iff_error));
1572                                         endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1573                                         return;
1574                                 }
1575
1576                                 satellite_bitmap = &satellite_bm_instance;
1577                                 gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
1578
1579                                 break;
1580                         }
1581
1582                         case 5:                                                 //earth pos
1583                         case 7: {                                               //station pos
1584                                 vms_matrix tm;
1585                                 vms_angvec ta;
1586                                 int pitch,head;
1587
1588                                 sscanf(p,"%d,%d",&head,&pitch);
1589
1590                                 ta.h = i2f(head)/360;
1591                                 ta.p = -i2f(pitch)/360;
1592                                 ta.b = 0;
1593
1594                                 vm_angles_2_matrix(&tm,&ta);
1595
1596                                 if (var==5)
1597                                         satellite_pos = tm.fvec;
1598                                         //vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
1599                                 else
1600                                         station_pos = tm.fvec;
1601
1602                                 break;
1603                         }
1604
1605                         case 6:                                         //planet size
1606                                 satellite_size = i2f(atoi(p));
1607                                 break;
1608                 }
1609
1610                 var++;
1611
1612         }
1613
1614         Assert(var == NUM_VARS);
1615
1616
1617         // OK, now the data is loaded.  Initialize everything
1618
1619         //find the exit sequence by searching all segments for a side with
1620         //children == -2
1621
1622         for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
1623                 for (sidenum=0;sidenum<6;sidenum++)
1624                         if (Segments[segnum].children[sidenum] == -2) {
1625                                 exit_segnum = segnum;
1626                                 exit_side = sidenum;
1627                                 break;
1628                         }
1629
1630         Assert(exit_segnum!=-1);
1631
1632         compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
1633         extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
1634         compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
1635
1636         vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
1637
1638         //compute orientation of surface
1639         {
1640                 vms_vector tv;
1641                 vms_matrix exit_orient,tm;
1642
1643                 vm_angles_2_matrix(&exit_orient,&exit_angles);
1644                 vm_transpose_matrix(&exit_orient);
1645                 vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
1646
1647                 vm_copy_transpose_matrix(&tm,&surface_orient);
1648                 vm_vec_rotate(&tv,&station_pos,&tm);
1649                 vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
1650
1651                 vm_vec_rotate(&tv,&satellite_pos,&tm);
1652                 vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
1653
1654                 vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
1655                 vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
1656
1657
1658         }
1659
1660         cfclose(ifile);
1661
1662         endlevel_data_loaded = 1;
1663
1664 }