main/endlevel.c

   1 /* $Id: endlevel.c,v 1.24 2004-10-23 17:42:13 schaffner Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 /*
  16  *
  17  * Code for rendering external scenes
  18  *
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <conf.h>
  23 #endif
  24
  25 #ifdef RCS
  26 static char rcsid[] = "$Id: endlevel.c,v 1.24 2004-10-23 17:42:13 schaffner Exp $";
  27 #endif
  28
  29 //#define SLEW_ON 1
  30
  31 //#define _MARK_ON
  32
  33 #include <stdlib.h>
  34
  35
  36 #include <stdio.h>
  37 #include <string.h>
  38 #include <ctype.h> // for isspace
  39
  40 #include "fix.h"
  41 #include "vecmat.h"
  42 #include "gr.h"
  43 #include "3d.h"
  44 #include "error.h"
  45 #include "palette.h"
  46 #include "iff.h"
  47 #include "mono.h"
  48 #include "texmap.h"
  49 #include "fvi.h"
  50 #include "u_mem.h"
  51 #include "sounds.h"
  52
  53 #include "inferno.h"
  54 #include "endlevel.h"
  55 #include "object.h"
  56 #include "game.h"
  57 #include "screens.h"
  58 #include "gauges.h"
  59 #include "wall.h"
  60 #include "terrain.h"
  61 #include "polyobj.h"
  62 #include "bm.h"
  63 #include "gameseq.h"
  64 #include "newdemo.h"
  65 #include "multi.h"
  66 #include "vclip.h"
  67 #include "fireball.h"
  68 #ifdef NETWORK
  69 #include "network.h"
  70 #endif
  71 #include "text.h"
  72 #include "digi.h"
  73 #include "cfile.h"
  74 #include "songs.h"
  75 #include "movie.h"
  76 #include "render.h"
  77
  78 typedef struct flythrough_data {
  79         object          *obj;
  80         vms_angvec      angles;                 //orientation in angles
  81         vms_vector      step;                           //how far in a second
  82         vms_vector      angstep;                        //rotation per second
  83         fix                     speed;                  //how fast object is moving
  84         vms_vector      headvec;                        //where we want to be pointing
  85         int                     first_time;             //flag for if first time through
  86         fix                     offset_frac;    //how far off-center as portion of way
  87         fix                     offset_dist;    //how far currently off-center
  88 } flythrough_data;
  89
  90 //endlevel sequence states
  91
  92 #define EL_OFF                          0               //not in endlevel
  93 #define EL_FLYTHROUGH   1               //auto-flythrough in tunnel
  94 #define EL_LOOKBACK             2               //looking back at player
  95 #define EL_OUTSIDE              3               //flying outside for a while
  96 #define EL_STOPPED              4               //stopped, watching explosion
  97 #define EL_PANNING              5               //panning around, watching player
  98 #define EL_CHASING              6               //chasing player to station
  99
 100 #define SHORT_SEQUENCE  1               //if defined, end sequnce when panning starts
 101 //#define STATION_ENABLED       1               //if defined, load & use space station model
 102
 103 int Endlevel_sequence = 0;
 104
 105 extern fix player_speed;
 106
 107 int transition_segnum,exit_segnum;
 108
 109 object *endlevel_camera;
 110
 111 #define FLY_SPEED i2f(50)
 112
 113 void do_endlevel_flythrough(int n);
 114 void draw_stars();
 115 int find_exit_side(object *obj);
 116 void generate_starfield();
 117 void start_endlevel_flythrough(int n,object *obj,fix speed);
 118 void start_rendered_endlevel_sequence();
 119
 120 #ifdef D2_OEM
 121 char movie_table[] =    {       'a','a','a','a','d','d','d','d' };
 122 #else
 123 char movie_table[] =    {       'a','b','c',
 124                                                 #ifndef SHAREWARE
 125                                                         'a',
 126                                                         'd','f','d','f',
 127                                                         'g','h','i','g',
 128                                                         'j','k','l','j',
 129                                                         'm','o','m','o',
 130                                                         'p','q','p','q'
 131                                                 #endif
 132                                         };
 133 #endif
 134
 135 #define N_MOVIES (sizeof(movie_table) / sizeof(*movie_table))
 136
 137 #ifndef SHAREWARE
 138 #ifdef D2_OEM
 139 char movie_table_secret[] = {'a','d'};
 140 #else
 141 char movie_table_secret[] = {'a','d','g','j','m','p'};
 142 #endif
 143 #define N_MOVIES_SECRET (sizeof(movie_table_secret) / sizeof(*movie_table_secret))
 144 #else
 145 #define N_MOVIES_SECRET 0
 146 #endif
 147
 148
 149 #define FLY_ACCEL i2f(5)
 150
 151 fix cur_fly_speed,desired_fly_speed;
 152
 153 extern int matt_find_connect_side(int seg0,int seg1);
 154
 155 grs_bitmap *satellite_bitmap,*station_bitmap,*terrain_bitmap;   //!!*exit_bitmap,
 156 vms_vector satellite_pos,satellite_upvec;
 157 //!!grs_bitmap **exit_bitmap_list[1];
 158 int station_modelnum,exit_modelnum,destroyed_exit_modelnum;
 159
 160 vms_vector station_pos = {0xf8c4<<10,0x3c1c<<12,0x372<<10};
 161
 162 #ifdef STATION_ENABLED
 163 grs_bitmap *station_bitmap;
 164 grs_bitmap **station_bitmap_list[1];
 165 int station_modelnum;
 166 #endif
 167
 168 vms_vector mine_exit_point;
 169 vms_vector mine_ground_exit_point;
 170 vms_vector mine_side_exit_point;
 171 vms_matrix mine_exit_orient;
 172
 173 int outside_mine;
 174
 175 grs_bitmap terrain_bm_instance;
 176 grs_bitmap satellite_bm_instance;
 177
 178 //find delta between two angles
 179 fixang delta_ang(fixang a,fixang b)
 180 {
 181         fixang delta0,delta1;
 182
 183         return (abs(delta0 = a - b) < abs(delta1 = b - a)) ? delta0 : delta1;
 184
 185 }
 186
 187 //return though which side of seg0 is seg1
 188 int matt_find_connect_side(int seg0,int seg1)
 189 {
 190         segment *Seg=&Segments[seg0];
 191         int i;
 192
 193         for (i=MAX_SIDES_PER_SEGMENT;i--;) if (Seg->children[i]==seg1) return i;
 194
 195         return -1;
 196 }
 197
 198 extern int Kmatrix_nomovie_message;
 199
 200 #if defined(D2_OEM) || defined(COMPILATION)
 201 #define MOVIE_REQUIRED 0
 202 #else
 203 #define MOVIE_REQUIRED 1
 204 #endif
 205
 206 //returns movie played status.  see movie.h
 207 int start_endlevel_movie()
 208 {
 209         char movie_name[] = "esa.mve";
 210         int r;
 211         ubyte save_pal[768];
 212
 213         //Assert(PLAYING_BUILTIN_MISSION); //only play movie for built-in mission
 214
 215         //Assert(N_MOVIES >= Last_level);
 216         //Assert(N_MOVIES_SECRET >= -Last_secret_level);
 217
 218         if (!is_D2_OEM)
 219                 if (Current_level_num == Last_level)
 220                         return 1;   //don't play movie
 221
 222         if (Current_level_num > 0)
 223                 movie_name[2] = movie_table[Current_level_num-1];
 224         else {
 225                 #ifndef SHAREWARE
 226                         return 0;       //no escapes for secret level
 227                 #else
 228                         Error("Invalid level number <%d>",Current_level_num);
 229                 #endif
 230         }
 231
 232         memcpy(save_pal,gr_palette,768);
 233
 234         #ifndef SHAREWARE
 235                 r=PlayMovie(movie_name,(Game_mode & GM_MULTI)?0:MOVIE_REQUIRED);
 236         #else
 237                 return  0;      // movie not played for shareware
 238         #endif
 239
 240         if (Newdemo_state == ND_STATE_PLAYBACK) {
 241                 set_screen_mode(SCREEN_GAME);
 242                 memcpy(gr_palette,save_pal,768);
 243         }
 244
 245 #ifdef NETWORK
 246    if (r==MOVIE_NOT_PLAYED && (Game_mode & GM_MULTI))
 247           Kmatrix_nomovie_message=1;
 248         else
 249           Kmatrix_nomovie_message=0;
 250 #endif
 251
 252         return (r);
 253
 254 }
 255
 256 void
 257 free_endlevel_data()
 258 {
 259         if (terrain_bm_instance.bm_data)
 260                 d_free(terrain_bm_instance.bm_data);
 261
 262         if (satellite_bm_instance.bm_data)
 263                 d_free(satellite_bm_instance.bm_data);
 264 }
 265
 266 void init_endlevel()
 267 {
 268         //##satellite_bitmap = bm_load("earth.bbm");
 269         //##terrain_bitmap = bm_load("moon.bbm");
 270         //##
 271         //##load_terrain("matt5b.bbm");         //load bitmap as height array
 272         //##//load_terrain("ttest2.bbm");               //load bitmap as height array
 273
 274         #ifdef STATION_ENABLED
 275         station_bitmap = bm_load("steel3.bbm");
 276         station_bitmap_list[0] = &station_bitmap;
 277
 278         station_modelnum = load_polygon_model("station.pof",1,station_bitmap_list,NULL);
 279         #endif
 280
 281 //!!    exit_bitmap = bm_load("steel1.bbm");
 282 //!!    exit_bitmap_list[0] = &exit_bitmap;
 283
 284 //!!    exit_modelnum = load_polygon_model("exit01.pof",1,exit_bitmap_list,NULL);
 285 //!!    destroyed_exit_modelnum = load_polygon_model("exit01d.pof",1,exit_bitmap_list,NULL);
 286
 287         generate_starfield();
 288
 289         atexit(free_endlevel_data);
 290
 291         terrain_bm_instance.bm_data = satellite_bm_instance.bm_data = NULL;
 292 }
 293
 294 object external_explosion;
 295 int ext_expl_playing,mine_destroyed;
 296
 297 extern fix flash_scale;
 298
 299 vms_angvec exit_angles={-0xa00,0,0};
 300
 301 vms_matrix surface_orient;
 302
 303 int endlevel_data_loaded=0;
 304 extern char last_palette_loaded[];
 305
 306 void start_endlevel_sequence()
 307 {
 308         int     i;
 309         int movie_played = MOVIE_NOT_PLAYED;
 310
 311         if (Newdemo_state == ND_STATE_RECORDING)                // stop demo recording
 312                 Newdemo_state = ND_STATE_PAUSED;
 313
 314         if (Newdemo_state == ND_STATE_PLAYBACK) {               // don't do this if in playback mode
 315                 if (PLAYING_BUILTIN_MISSION) // only play movie for built-in mission
 316                         start_endlevel_movie();
 317                 strcpy(last_palette_loaded,"");         //force palette load next time
 318                 return;
 319         }
 320
 321         if (Player_is_dead || ConsoleObject->flags&OF_SHOULD_BE_DEAD)
 322                 return;                         //don't start if dead!
 323
 324         //      Dematerialize Buddy!
 325         for (i=0; i<=Highest_object_index; i++)
 326                 if (Objects[i].type == OBJ_ROBOT)
 327                         if (Robot_info[Objects[i].id].companion) {
 328                                 object_create_explosion(Objects[i].segnum, &Objects[i].pos, F1_0*7/2, VCLIP_POWERUP_DISAPPEARANCE );
 329                                 Objects[i].flags |= OF_SHOULD_BE_DEAD;
 330                         }
 331
 332         Players[Player_num].homing_object_dist = -F1_0; // Turn off homing sound.
 333
 334         reset_rear_view();              //turn off rear view if set
 335
 336 #ifdef NETWORK
 337         if (Game_mode & GM_MULTI) {
 338                 multi_send_endlevel_start(0);
 339                 network_do_frame(1, 1);
 340         }
 341 #endif
 342
 343         if (PLAYING_BUILTIN_MISSION) // only play movie for built-in mission
 344                 if (!(Game_mode & GM_MULTI))
 345                         movie_played = start_endlevel_movie();
 346
 347         if (!(Game_mode & GM_MULTI) && (movie_played == MOVIE_NOT_PLAYED) && endlevel_data_loaded)
 348         {   //don't have movie.  Do rendered sequence, if available
 349                 int exit_models_loaded = 0;
 350
 351                 if (Piggy_hamfile_version < 3)
 352                         exit_models_loaded = 1; // built-in for PC shareware
 353
 354                 else
 355                         exit_models_loaded = load_exit_models();
 356
 357 #ifndef WINDOWS
 358                 if (exit_models_loaded)
 359                 {
 360                         start_rendered_endlevel_sequence();
 361                         return;
 362                 }
 363 #endif
 364         }
 365
 366         //don't have movie or rendered sequence, fade out
 367         gr_palette_fade_out(gr_palette, 32, 0);
 368
 369         PlayerFinishedLevel(0);         //done with level
 370 }
 371
 372 static int cockpit_mode_save;
 373
 374 void start_rendered_endlevel_sequence()
 375 {
 376         int last_segnum,exit_side,tunnel_length;
 377
 378         {
 379                 int segnum,old_segnum,entry_side,i;
 380
 381                 //count segments in exit tunnel
 382
 383                 old_segnum = ConsoleObject->segnum;
 384                 exit_side = find_exit_side(ConsoleObject);
 385                 segnum = Segments[old_segnum].children[exit_side];
 386                 tunnel_length = 0;
 387                 do {
 388                         entry_side = matt_find_connect_side(segnum,old_segnum);
 389                         exit_side = Side_opposite[entry_side];
 390                         old_segnum = segnum;
 391                         segnum = Segments[segnum].children[exit_side];
 392                         tunnel_length++;
 393                 } while (segnum >= 0);
 394
 395                 if (segnum != -2) {
 396                         PlayerFinishedLevel(0);         //don't do special sequence
 397                         return;
 398                 }
 399
 400                 last_segnum = old_segnum;
 401
 402                 //now pick transition segnum 1/3 of the way in
 403
 404                 old_segnum = ConsoleObject->segnum;
 405                 exit_side = find_exit_side(ConsoleObject);
 406                 segnum = Segments[old_segnum].children[exit_side];
 407                 i=tunnel_length/3;
 408                 while (i--) {
 409
 410                         entry_side = matt_find_connect_side(segnum,old_segnum);
 411                         exit_side = Side_opposite[entry_side];
 412                         old_segnum = segnum;
 413                         segnum = Segments[segnum].children[exit_side];
 414                 }
 415                 transition_segnum = segnum;
 416
 417         }
 418
 419         cockpit_mode_save = Cockpit_mode;
 420
 421         #ifdef NETWORK
 422         if (Game_mode & GM_MULTI) {
 423                 multi_send_endlevel_start(0);
 424                 network_do_frame(1, 1);
 425         }
 426         #endif
 427
 428         #ifdef SHAREWARE
 429         Assert(last_segnum == exit_segnum);
 430         //      songs_play_song( SONG_ENDLEVEL, 0 );    // JTS: Until we get an exit song, just don't worry
 431         #endif
 432
 433         Endlevel_sequence = EL_FLYTHROUGH;
 434
 435         ConsoleObject->movement_type = MT_NONE;                 //movement handled by flythrough
 436         ConsoleObject->control_type = CT_NONE;
 437
 438         Game_suspended |= SUSP_ROBOTS;          //robots don't move
 439
 440         cur_fly_speed = desired_fly_speed = FLY_SPEED;
 441
 442         start_endlevel_flythrough(0,ConsoleObject,cur_fly_speed);               //initialize
 443
 444         HUD_init_message( TXT_EXIT_SEQUENCE );
 445
 446         outside_mine = ext_expl_playing = 0;
 447
 448         flash_scale = f1_0;
 449
 450         //init_endlevel();
 451
 452         mine_destroyed=0;
 453
 454 }
 455
 456 extern flythrough_data fly_objects[];
 457
 458 extern object *slew_obj;
 459
 460 vms_angvec player_angles,player_dest_angles;
 461 vms_angvec camera_desired_angles,camera_cur_angles;
 462
 463 #define CHASE_TURN_RATE (0x4000/4)              //max turn per second
 464
 465 //returns bitmask of which angles are at dest. bits 0,1,2 = p,b,h
 466 int chase_angles(vms_angvec *cur_angles,vms_angvec *desired_angles)
 467 {
 468         vms_angvec delta_angs,alt_angles,alt_delta_angs;
 469         fix total_delta,alt_total_delta;
 470         fix frame_turn;
 471         int mask=0;
 472
 473         delta_angs.p = desired_angles->p - cur_angles->p;
 474         delta_angs.h = desired_angles->h - cur_angles->h;
 475         delta_angs.b = desired_angles->b - cur_angles->b;
 476 //delta_angs.b = 0;
 477
 478 //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);
 479
 480         total_delta = abs(delta_angs.p) + abs(delta_angs.b) + abs(delta_angs.h);
 481
 482         alt_angles.p = f1_0/2 - cur_angles->p;
 483         alt_angles.b = cur_angles->b + f1_0/2;
 484         alt_angles.h = cur_angles->h + f1_0/2;
 485
 486         alt_delta_angs.p = desired_angles->p - alt_angles.p;
 487         alt_delta_angs.h = desired_angles->h - alt_angles.h;
 488         alt_delta_angs.b = desired_angles->b - alt_angles.b;
 489 //alt_delta_angs.b = 0;
 490
 491         alt_total_delta = abs(alt_delta_angs.p) + abs(alt_delta_angs.b) + abs(alt_delta_angs.h);
 492
 493 //printf("Total delta = %x, alt total_delta = %x\n",total_delta,alt_total_delta);
 494
 495         if (alt_total_delta < total_delta) {
 496                 //mprintf((0,"FLIPPING ANGLES!\n"));
 497                 //printf("FLIPPING ANGLES!\n");
 498                 *cur_angles = alt_angles;
 499                 delta_angs = alt_delta_angs;
 500         }
 501
 502         frame_turn = fixmul(FrameTime,CHASE_TURN_RATE);
 503
 504         if (abs(delta_angs.p) < frame_turn) {
 505                 cur_angles->p = desired_angles->p;
 506                 mask |= 1;
 507         }
 508         else
 509                 if (delta_angs.p > 0)
 510                         cur_angles->p += frame_turn;
 511                 else
 512                         cur_angles->p -= frame_turn;
 513
 514         if (abs(delta_angs.b) < frame_turn) {
 515                 cur_angles->b = desired_angles->b;
 516                 mask |= 2;
 517         }
 518         else
 519                 if (delta_angs.b > 0)
 520                         cur_angles->b += frame_turn;
 521                 else
 522                         cur_angles->b -= frame_turn;
 523 //cur_angles->b = 0;
 524
 525         if (abs(delta_angs.h) < frame_turn) {
 526                 cur_angles->h = desired_angles->h;
 527                 mask |= 4;
 528         }
 529         else
 530                 if (delta_angs.h > 0)
 531                         cur_angles->h += frame_turn;
 532                 else
 533                         cur_angles->h -= frame_turn;
 534
 535         return mask;
 536 }
 537
 538 void stop_endlevel_sequence()
 539 {
 540         Interpolation_method = 0;
 541
 542         gr_palette_fade_out(gr_palette, 32, 0);
 543
 544         select_cockpit(cockpit_mode_save);
 545
 546         Endlevel_sequence = EL_OFF;
 547
 548         PlayerFinishedLevel(0);
 549
 550 }
 551
 552 #define VCLIP_BIG_PLAYER_EXPLOSION      58
 553
 554 //--unused-- vms_vector upvec = {0,f1_0,0};
 555
 556 //find the angle between the player's heading & the station
 557 void get_angs_to_object(vms_angvec *av,vms_vector *targ_pos,vms_vector *cur_pos)
 558 {
 559         vms_vector tv;
 560
 561         vm_vec_sub(&tv,targ_pos,cur_pos);
 562
 563         vm_extract_angles_vector(av,&tv);
 564 }
 565
 566 void do_endlevel_frame()
 567 {
 568         static fix timer;
 569         static fix bank_rate;
 570         vms_vector save_last_pos;
 571         static fix explosion_wait1=0;
 572         static fix explosion_wait2=0;
 573         static fix ext_expl_halflife;
 574
 575         save_last_pos = ConsoleObject->last_pos;        //don't let move code change this
 576         object_move_all();
 577         ConsoleObject->last_pos = save_last_pos;
 578
 579         if (ext_expl_playing) {
 580
 581                 external_explosion.lifeleft -= FrameTime;
 582                 do_explosion_sequence(&external_explosion);
 583
 584                 if (external_explosion.lifeleft < ext_expl_halflife)
 585                         mine_destroyed = 1;
 586
 587                 if (external_explosion.flags & OF_SHOULD_BE_DEAD)
 588                         ext_expl_playing = 0;
 589         }
 590
 591         if (cur_fly_speed != desired_fly_speed) {
 592                 fix delta = desired_fly_speed - cur_fly_speed;
 593                 fix frame_accel = fixmul(FrameTime,FLY_ACCEL);
 594
 595                 if (abs(delta) < frame_accel)
 596                         cur_fly_speed = desired_fly_speed;
 597                 else
 598                         if (delta > 0)
 599                                 cur_fly_speed += frame_accel;
 600                         else
 601                                 cur_fly_speed -= frame_accel;
 602         }
 603
 604         //do big explosions
 605         if (!outside_mine) {
 606
 607                 if (Endlevel_sequence==EL_OUTSIDE) {
 608                         vms_vector tvec;
 609
 610                         vm_vec_sub(&tvec,&ConsoleObject->pos,&mine_side_exit_point);
 611
 612                         if (vm_vec_dot(&tvec,&mine_exit_orient.fvec) > 0) {
 613                                 object *tobj;
 614
 615                                 outside_mine = 1;
 616
 617                                 tobj = object_create_explosion(exit_segnum,&mine_side_exit_point,i2f(50),VCLIP_BIG_PLAYER_EXPLOSION);
 618
 619                                 if (tobj) {
 620                                         external_explosion = *tobj;
 621
 622                                         tobj->flags |= OF_SHOULD_BE_DEAD;
 623
 624                                         flash_scale = 0;        //kill lights in mine
 625
 626                                         ext_expl_halflife = tobj->lifeleft;
 627
 628                                         ext_expl_playing = 1;
 629                                 }
 630
 631                                 digi_link_sound_to_pos( SOUND_BIG_ENDLEVEL_EXPLOSION, exit_segnum, 0, &mine_side_exit_point, 0, i2f(3)/4 );
 632                         }
 633                 }
 634
 635                 //do explosions chasing player
 636                 if ((explosion_wait1-=FrameTime) < 0) {
 637                         vms_vector tpnt;
 638                         int segnum;
 639                         object *expl;
 640                         static int sound_count;
 641
 642                         vm_vec_scale_add(&tpnt,&ConsoleObject->pos,&ConsoleObject->orient.fvec,-ConsoleObject->size*5);
 643                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*15);
 644                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*15);
 645
 646                         segnum = find_point_seg(&tpnt,ConsoleObject->segnum);
 647
 648                         if (segnum != -1) {
 649                                 expl = object_create_explosion(segnum,&tpnt,i2f(20),VCLIP_BIG_PLAYER_EXPLOSION);
 650                                 if (d_rand()<10000 || ++sound_count==7) {               //pseudo-random
 651                                         digi_link_sound_to_pos( SOUND_TUNNEL_EXPLOSION, segnum, 0, &tpnt, 0, F1_0 );
 652                                         sound_count=0;
 653                                 }
 654                         }
 655
 656                         explosion_wait1 = 0x2000 + d_rand()/4;
 657
 658                 }
 659         }
 660
 661         //do little explosions on walls
 662         if (Endlevel_sequence >= EL_FLYTHROUGH && Endlevel_sequence < EL_OUTSIDE)
 663                 if ((explosion_wait2-=FrameTime) < 0) {
 664                         vms_vector tpnt;
 665                         fvi_query fq;
 666                         fvi_info hit_data;
 667
 668                         //create little explosion on wall
 669
 670                         vm_vec_copy_scale(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*100);
 671                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*100);
 672                         vm_vec_add2(&tpnt,&ConsoleObject->pos);
 673
 674                         if (Endlevel_sequence == EL_FLYTHROUGH)
 675                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*200);
 676                         else
 677                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*60);
 678
 679                         //find hit point on wall
 680
 681                         fq.p0 = &ConsoleObject->pos;
 682                         fq.p1 = &tpnt;
 683                         fq.startseg = ConsoleObject->segnum;
 684                         fq.rad = 0;
 685                         fq.thisobjnum = 0;
 686                         fq.ignore_obj_list = NULL;
 687                         fq.flags = 0;
 688
 689                         find_vector_intersection(&fq,&hit_data);
 690
 691                         if (hit_data.hit_type==HIT_WALL && hit_data.hit_seg!=-1)
 692                                 object_create_explosion(hit_data.hit_seg,&hit_data.hit_pnt,i2f(3)+d_rand()*6,VCLIP_SMALL_EXPLOSION);
 693
 694                         explosion_wait2 = (0xa00 + d_rand()/8)/2;
 695                 }
 696
 697         switch (Endlevel_sequence) {
 698
 699                 case EL_OFF: return;
 700
 701                 case EL_FLYTHROUGH: {
 702
 703                         do_endlevel_flythrough(0);
 704
 705                         if (ConsoleObject->segnum == transition_segnum) {
 706
 707                                 if (PLAYING_BUILTIN_MISSION && start_endlevel_movie() != MOVIE_NOT_PLAYED)
 708                                         stop_endlevel_sequence();
 709                                 else {
 710                                         int objnum;
 711
 712                                         //songs_play_song( SONG_ENDLEVEL, 0 );
 713
 714                                         Endlevel_sequence = EL_LOOKBACK;
 715
 716                                         objnum = obj_create(OBJ_CAMERA, 0,
 717                                                             ConsoleObject->segnum,&ConsoleObject->pos,&ConsoleObject->orient,0,
 718                                                             CT_NONE,MT_NONE,RT_NONE);
 719
 720                                         if (objnum == -1) { //can't get object, so abort
 721                                                 mprintf((1, "Can't get object for endlevel sequence.  Aborting endlevel sequence.\n"));
 722                                                 stop_endlevel_sequence();
 723                                                 return;
 724                                         }
 725
 726                                         Viewer = endlevel_camera = &Objects[objnum];
 727
 728                                         select_cockpit(CM_LETTERBOX);
 729
 730                                         fly_objects[1] = fly_objects[0];
 731                                         fly_objects[1].obj = endlevel_camera;
 732                                         fly_objects[1].speed = (5*cur_fly_speed)/4;
 733                                         fly_objects[1].offset_frac = 0x4000;
 734
 735                                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,i2f(7));
 736
 737                                         timer=0x20000;
 738
 739                                 }
 740                         }
 741
 742                         break;
 743                 }
 744
 745
 746                 case EL_LOOKBACK: {
 747
 748                         do_endlevel_flythrough(0);
 749                         do_endlevel_flythrough(1);
 750
 751                         if (timer>0) {
 752
 753                                 timer -= FrameTime;
 754
 755                                 if (timer < 0)          //reduce speed
 756                                         fly_objects[1].speed = fly_objects[0].speed;
 757                         }
 758
 759                         if (endlevel_camera->segnum == exit_segnum) {
 760                                 vms_angvec cam_angles,exit_seg_angles;
 761
 762                                 Endlevel_sequence = EL_OUTSIDE;
 763
 764                                 timer = i2f(2);
 765
 766                                 vm_vec_negate(&endlevel_camera->orient.fvec);
 767                                 vm_vec_negate(&endlevel_camera->orient.rvec);
 768
 769                                 vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 770                                 vm_extract_angles_matrix(&exit_seg_angles,&mine_exit_orient);
 771                                 bank_rate = (-exit_seg_angles.b - cam_angles.b)/2;
 772
 773                                 ConsoleObject->control_type = endlevel_camera->control_type = CT_NONE;
 774
 775 #ifdef SLEW_ON
 776  slew_obj = endlevel_camera;
 777 #endif
 778                         }
 779
 780                         break;
 781                 }
 782
 783                 case EL_OUTSIDE: {
 784                         #ifndef SLEW_ON
 785                         vms_angvec cam_angles;
 786                         #endif
 787
 788                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 789 #ifndef SLEW_ON
 790                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,-2*cur_fly_speed));
 791                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.uvec,fixmul(FrameTime,-cur_fly_speed/10));
 792
 793                         vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 794                         cam_angles.b += fixmul(bank_rate,FrameTime);
 795                         vm_angles_2_matrix(&endlevel_camera->orient,&cam_angles);
 796 #endif
 797
 798                         timer -= FrameTime;
 799
 800                         if (timer < 0) {
 801
 802                                 Endlevel_sequence = EL_STOPPED;
 803
 804                                 vm_extract_angles_matrix(&player_angles,&ConsoleObject->orient);
 805
 806                                 timer = i2f(3);
 807
 808                         }
 809
 810                         break;
 811                 }
 812
 813                 case EL_STOPPED: {
 814
 815                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 816                         chase_angles(&player_angles,&player_dest_angles);
 817                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 818
 819                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 820
 821                         timer -= FrameTime;
 822
 823                         if (timer < 0) {
 824
 825                                 #ifdef SLEW_ON
 826                                 slew_obj = endlevel_camera;
 827                                 _do_slew_movement(endlevel_camera,1,1);
 828                                 timer += FrameTime;             //make time stop
 829                                 break;
 830                                 #else
 831
 832                                 #ifdef SHORT_SEQUENCE
 833
 834                                 stop_endlevel_sequence();
 835
 836                                 #else
 837                                 Endlevel_sequence = EL_PANNING;
 838
 839                                 vm_extract_angles_matrix(&camera_cur_angles,&endlevel_camera->orient);
 840
 841
 842                                 timer = i2f(3);
 843
 844                                 if (Game_mode & GM_MULTI) { // try to skip part of the seq if multiplayer
 845                                         stop_endlevel_sequence();
 846                                         return;
 847                                 }
 848
 849                                 //mprintf((0,"Switching to pan...\n"));
 850                                 #endif          //SHORT_SEQUENCE
 851                                 #endif          //SLEW_ON
 852
 853                         }
 854                         break;
 855                 }
 856
 857                 #ifndef SHORT_SEQUENCE
 858                 case EL_PANNING: {
 859                         #ifndef SLEW_ON
 860                         int mask;
 861                         #endif
 862
 863                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 864                         chase_angles(&player_angles,&player_dest_angles);
 865                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 866                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 867
 868                         #ifdef SLEW_ON
 869                         _do_slew_movement(endlevel_camera,1,1);
 870                         #else
 871
 872                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 873                         mask = chase_angles(&camera_cur_angles,&camera_desired_angles);
 874                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 875
 876                         if ((mask&5) == 5) {
 877
 878                                 vms_vector tvec;
 879
 880                                 Endlevel_sequence = EL_CHASING;
 881
 882                                 vm_vec_normalized_dir_quick(&tvec,&station_pos,&ConsoleObject->pos);
 883                                 vm_vector_2_matrix(&ConsoleObject->orient,&tvec,&surface_orient.uvec,NULL);
 884
 885                                 desired_fly_speed *= 2;
 886
 887                                 //mprintf((0,"Switching to chase...\n"));
 888
 889                         }
 890                         #endif
 891
 892                         break;
 893                 }
 894
 895                 case EL_CHASING: {
 896                         fix d,speed_scale;
 897
 898                         #ifdef SLEW_ON
 899                         _do_slew_movement(endlevel_camera,1,1);
 900                         #endif
 901
 902                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 903                         chase_angles(&camera_cur_angles,&camera_desired_angles);
 904
 905                         #ifndef SLEW_ON
 906                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 907                         #endif
 908
 909                         d = vm_vec_dist_quick(&ConsoleObject->pos,&endlevel_camera->pos);
 910
 911                         speed_scale = fixdiv(d,i2f(0x20));
 912                         if (d<f1_0) d=f1_0;
 913
 914                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 915                         chase_angles(&player_angles,&player_dest_angles);
 916                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 917
 918                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 919                         #ifndef SLEW_ON
 920                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,fixmul(speed_scale,cur_fly_speed)));
 921
 922                         if (vm_vec_dist(&ConsoleObject->pos,&station_pos) < i2f(10))
 923                                 stop_endlevel_sequence();
 924                         #endif
 925
 926                         break;
 927
 928                 }
 929                 #endif          //ifdef SHORT_SEQUENCE
 930
 931         }
 932 }
 933
 934
 935 #define MIN_D 0x100
 936
 937 //find which side to fly out of
 938 int find_exit_side(object *obj)
 939 {
 940         int i;
 941         vms_vector prefvec,segcenter,sidevec;
 942         fix best_val=-f2_0;
 943         int best_side;
 944         segment *pseg = &Segments[obj->segnum];
 945
 946         //find exit side
 947
 948         vm_vec_normalized_dir_quick(&prefvec,&obj->pos,&obj->last_pos);
 949
 950         compute_segment_center(&segcenter,pseg);
 951
 952         best_side=-1;
 953         for (i=MAX_SIDES_PER_SEGMENT;--i >= 0;) {
 954                 fix d;
 955
 956                 if (pseg->children[i]!=-1) {
 957
 958                         compute_center_point_on_side(&sidevec,pseg,i);
 959                         vm_vec_normalized_dir_quick(&sidevec,&sidevec,&segcenter);
 960                         d = vm_vec_dotprod(&sidevec,&prefvec);
 961
 962                         if (labs(d) < MIN_D) d=0;
 963
 964                         if (d > best_val) {best_val=d; best_side=i;}
 965
 966                 }
 967         }
 968
 969         Assert(best_side!=-1);
 970
 971         return best_side;
 972 }
 973
 974 extern fix Render_zoom;                                                 //the player's zoom factor
 975
 976 extern vms_vector Viewer_eye;   //valid during render
 977
 978 void draw_exit_model()
 979 {
 980         vms_vector model_pos;
 981         int f=15,u=0;   //21;
 982
 983         vm_vec_scale_add(&model_pos,&mine_exit_point,&mine_exit_orient.fvec,i2f(f));
 984         vm_vec_scale_add2(&model_pos,&mine_exit_orient.uvec,i2f(u));
 985
 986         draw_polygon_model(&model_pos,&mine_exit_orient,NULL,(mine_destroyed)?destroyed_exit_modelnum:exit_modelnum,0,f1_0,NULL,NULL);
 987
 988 }
 989
 990 int exit_point_bmx,exit_point_bmy;
 991
 992 fix satellite_size = i2f(400);
 993
 994 #define SATELLITE_DIST          i2f(1024)
 995 #define SATELLITE_WIDTH         satellite_size
 996 #define SATELLITE_HEIGHT        ((satellite_size*9)/4)          //((satellite_size*5)/2)
 997
 998 void render_external_scene(fix eye_offset)
 999 {
1000
1001         Viewer_eye = Viewer->pos;
1002
1003         if (eye_offset)
1004                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1005
1006         g3_set_view_matrix(&Viewer->pos,&Viewer->orient,Render_zoom);
1007
1008         //g3_draw_horizon(BM_XRGB(0,0,0),BM_XRGB(16,16,16));            //,-1);
1009         gr_clear_canvas(BM_XRGB(0,0,0));
1010
1011         g3_start_instance_matrix(&vmd_zero_vector,&surface_orient);
1012         draw_stars();
1013         g3_done_instance();
1014
1015         {       //draw satellite
1016
1017                 vms_vector delta;
1018                 g3s_point p,top_pnt;
1019
1020                 g3_rotate_point(&p,&satellite_pos);
1021                 g3_rotate_delta_vec(&delta,&satellite_upvec);
1022
1023                 g3_add_delta_vec(&top_pnt,&p,&delta);
1024
1025                 if (! (p.p3_codes & CC_BEHIND)) {
1026                         int save_im = Interpolation_method;
1027                         //p.p3_flags &= ~PF_PROJECTED;
1028                         //g3_project_point(&p);
1029                         if (! (p.p3_flags & PF_OVERFLOW)) {
1030                                 Interpolation_method = 0;
1031                                 //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1032                                 g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1033                                 Interpolation_method = save_im;
1034                         }
1035                 }
1036         }
1037
1038         #ifdef STATION_ENABLED
1039         draw_polygon_model(&station_pos,&vmd_identity_matrix,NULL,station_modelnum,0,f1_0,NULL,NULL);
1040         #endif
1041
1042         render_terrain(&mine_ground_exit_point,exit_point_bmx,exit_point_bmy);
1043
1044         draw_exit_model();
1045         if (ext_expl_playing)
1046                 draw_fireball(&external_explosion);
1047
1048         Lighting_on=0;
1049         render_object(ConsoleObject);
1050         Lighting_on=1;
1051 }
1052
1053 #define MAX_STARS 500
1054
1055 vms_vector stars[MAX_STARS];
1056
1057 void generate_starfield()
1058 {
1059         int i;
1060
1061         for (i=0;i<MAX_STARS;i++) {
1062
1063                 stars[i].x = (d_rand() - RAND_MAX/2) << 14;
1064                 stars[i].z = (d_rand() - RAND_MAX/2) << 14;
1065                 stars[i].y = (d_rand()/2) << 14;
1066
1067         }
1068 }
1069
1070 void draw_stars()
1071 {
1072         int i;
1073         int intensity=31;
1074         g3s_point p;
1075
1076         for (i=0;i<MAX_STARS;i++) {
1077
1078                 if ((i&63) == 0) {
1079                         gr_setcolor(BM_XRGB(intensity,intensity,intensity));
1080                         intensity-=3;
1081                 }
1082
1083                 //g3_rotate_point(&p,&stars[i]);
1084                 g3_rotate_delta_vec(&p.p3_vec,&stars[i]);
1085                 g3_code_point(&p);
1086
1087                 if (p.p3_codes == 0) {
1088
1089                         p.p3_flags &= ~PF_PROJECTED;
1090
1091                         g3_project_point(&p);
1092
1093                         gr_pixel(f2i(p.p3_sx),f2i(p.p3_sy));
1094                 }
1095         }
1096
1097 //@@    {
1098 //@@            vms_vector delta;
1099 //@@            g3s_point top_pnt;
1100 //@@
1101 //@@            g3_rotate_point(&p,&satellite_pos);
1102 //@@            g3_rotate_delta_vec(&delta,&satellite_upvec);
1103 //@@
1104 //@@            g3_add_delta_vec(&top_pnt,&p,&delta);
1105 //@@
1106 //@@            if (! (p.p3_codes & CC_BEHIND)) {
1107 //@@                    int save_im = Interpolation_method;
1108 //@@                    Interpolation_method = 0;
1109 //@@                    //p.p3_flags &= ~PF_PROJECTED;
1110 //@@                    g3_project_point(&p);
1111 //@@                    if (! (p.p3_flags & PF_OVERFLOW))
1112 //@@                            //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1113 //@@                            g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1114 //@@                    Interpolation_method = save_im;
1115 //@@            }
1116 //@@    }
1117
1118 }
1119
1120 void endlevel_render_mine(fix eye_offset)
1121 {
1122         int start_seg_num;
1123
1124         Viewer_eye = Viewer->pos;
1125
1126         if (Viewer->type == OBJ_PLAYER )
1127                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.fvec,(Viewer->size*3)/4);
1128
1129         if (eye_offset)
1130                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1131
1132         #ifdef EDITOR
1133         if (Function_mode==FMODE_EDITOR)
1134                 Viewer_eye = Viewer->pos;
1135         #endif
1136
1137         if (Endlevel_sequence >= EL_OUTSIDE) {
1138
1139                 start_seg_num = exit_segnum;
1140         }
1141         else {
1142                 start_seg_num = find_point_seg(&Viewer_eye,Viewer->segnum);
1143
1144                 if (start_seg_num==-1)
1145                         start_seg_num = Viewer->segnum;
1146         }
1147
1148         if (Endlevel_sequence == EL_LOOKBACK) {
1149                 vms_matrix headm,viewm;
1150                 vms_angvec angles = {0,0,0x7fff};
1151
1152                 vm_angles_2_matrix(&headm,&angles);
1153                 vm_matrix_x_matrix(&viewm,&Viewer->orient,&headm);
1154                 g3_set_view_matrix(&Viewer_eye,&viewm,Render_zoom);
1155         }
1156         else
1157                 g3_set_view_matrix(&Viewer_eye,&Viewer->orient,Render_zoom);
1158
1159         render_mine(start_seg_num,eye_offset, 0);
1160 }
1161
1162 void render_endlevel_frame(fix eye_offset)
1163 {
1164
1165         g3_start_frame();
1166
1167         if (Endlevel_sequence < EL_OUTSIDE)
1168                 endlevel_render_mine(eye_offset);
1169         else
1170                 render_external_scene(eye_offset);
1171
1172         g3_end_frame();
1173
1174 }
1175
1176
1177 ///////////////////////// copy of flythrough code for endlevel
1178
1179
1180 #define MAX_FLY_OBJECTS 2
1181
1182 flythrough_data fly_objects[MAX_FLY_OBJECTS];
1183
1184 flythrough_data *flydata;
1185
1186 int matt_find_connect_side(int seg0,int seg1);
1187
1188 void compute_segment_center(vms_vector *vp,segment *sp);
1189
1190 fixang delta_ang(fixang a,fixang b);
1191 fixang interp_angle(fixang dest,fixang src,fixang step);
1192
1193 #define DEFAULT_SPEED i2f(16)
1194
1195 #define MIN_D 0x100
1196
1197 //if speed is zero, use default speed
1198 void start_endlevel_flythrough(int n,object *obj,fix speed)
1199 {
1200         flydata = &fly_objects[n];
1201
1202         flydata->obj = obj;
1203
1204         flydata->first_time = 1;
1205
1206         flydata->speed = speed?speed:DEFAULT_SPEED;
1207
1208         flydata->offset_frac = 0;
1209 }
1210
1211 static vms_angvec *angvec_add2_scale(vms_angvec *dest,vms_vector *src,fix s)
1212 {
1213         dest->p += fixmul(src->x,s);
1214         dest->b  += fixmul(src->z,s);
1215         dest->h  += fixmul(src->y,s);
1216
1217         return dest;
1218 }
1219
1220 #define MAX_ANGSTEP     0x4000          //max turn per second
1221
1222 #define MAX_SLIDE_PER_SEGMENT 0x10000
1223
1224 void do_endlevel_flythrough(int n)
1225 {
1226         object *obj;
1227         segment *pseg;
1228         int old_player_seg;
1229
1230         flydata = &fly_objects[n];
1231         obj = flydata->obj;
1232
1233         old_player_seg = obj->segnum;
1234
1235         //move the player for this frame
1236
1237         if (!flydata->first_time) {
1238
1239                 vm_vec_scale_add2(&obj->pos,&flydata->step,FrameTime);
1240                 angvec_add2_scale(&flydata->angles,&flydata->angstep,FrameTime);
1241
1242                 vm_angles_2_matrix(&obj->orient,&flydata->angles);
1243         }
1244
1245         //check new player seg
1246
1247         update_object_seg(obj);
1248         pseg = &Segments[obj->segnum];
1249
1250         if (flydata->first_time || obj->segnum != old_player_seg) {             //moved into new seg
1251                 vms_vector curcenter,nextcenter;
1252                 fix step_size,seg_time;
1253                 short entry_side,exit_side = -1;//what sides we entry and leave through
1254                 vms_vector dest_point;          //where we are heading (center of exit_side)
1255                 vms_angvec dest_angles;         //where we want to be pointing
1256                 vms_matrix dest_orient;
1257                 int up_side=0;
1258
1259                 entry_side=0;
1260
1261                 //find new exit side
1262
1263                 if (!flydata->first_time) {
1264
1265                         entry_side = matt_find_connect_side(obj->segnum,old_player_seg);
1266                         exit_side = Side_opposite[entry_side];
1267                 }
1268
1269                 if (flydata->first_time || entry_side==-1 || pseg->children[exit_side]==-1)
1270                         exit_side = find_exit_side(obj);
1271
1272                 {                                                                               //find closest side to align to
1273                         fix d,largest_d=-f1_0;
1274                         int i;
1275
1276                         for (i=0;i<6;i++) {
1277                                 #ifdef COMPACT_SEGS
1278                                 vms_vector v1;
1279                                 get_side_normal(pseg, i, 0, &v1 );
1280                                 d = vm_vec_dot(&v1,&flydata->obj->orient.uvec);
1281                                 #else
1282                                 d = vm_vec_dot(&pseg->sides[i].normals[0],&flydata->obj->orient.uvec);
1283                                 #endif
1284                                 if (d > largest_d) {largest_d = d; up_side=i;}
1285                         }
1286
1287                 }
1288
1289                 //update target point & angles
1290
1291                 compute_center_point_on_side(&dest_point,pseg,exit_side);
1292
1293                 //update target point and movement points
1294
1295                 //offset object sideways
1296                 if (flydata->offset_frac) {
1297                         int s0=-1,s1=0,i;
1298                         vms_vector s0p,s1p;
1299                         fix dist;
1300
1301                         for (i=0;i<6;i++)
1302                                 if (i!=entry_side && i!=exit_side && i!=up_side && i!=Side_opposite[up_side])
1303                                  {
1304                                         if (s0==-1)
1305                                                 s0 = i;
1306                                         else
1307                                                 s1 = i;
1308                                  }
1309
1310                         compute_center_point_on_side(&s0p,pseg,s0);
1311                         compute_center_point_on_side(&s1p,pseg,s1);
1312                         dist = fixmul(vm_vec_dist(&s0p,&s1p),flydata->offset_frac);
1313
1314                         if (dist-flydata->offset_dist > MAX_SLIDE_PER_SEGMENT)
1315                                 dist = flydata->offset_dist + MAX_SLIDE_PER_SEGMENT;
1316
1317                         flydata->offset_dist = dist;
1318
1319                         vm_vec_scale_add2(&dest_point,&obj->orient.rvec,dist);
1320
1321                 }
1322
1323                 vm_vec_sub(&flydata->step,&dest_point,&obj->pos);
1324                 step_size = vm_vec_normalize_quick(&flydata->step);
1325                 vm_vec_scale(&flydata->step,flydata->speed);
1326
1327                 compute_segment_center(&curcenter,pseg);
1328                 compute_segment_center(&nextcenter,&Segments[pseg->children[exit_side]]);
1329                 vm_vec_sub(&flydata->headvec,&nextcenter,&curcenter);
1330
1331                 #ifdef COMPACT_SEGS
1332                 {
1333                         vms_vector _v1;
1334                         get_side_normal(pseg, up_side, 0, &_v1 );
1335                         vm_vector_2_matrix(&dest_orient,&flydata->headvec,&_v1,NULL);
1336                 }
1337                 #else
1338                 vm_vector_2_matrix(&dest_orient,&flydata->headvec,&pseg->sides[up_side].normals[0],NULL);
1339                 #endif
1340                 vm_extract_angles_matrix(&dest_angles,&dest_orient);
1341
1342                 if (flydata->first_time)
1343                         vm_extract_angles_matrix(&flydata->angles,&obj->orient);
1344
1345                 seg_time = fixdiv(step_size,flydata->speed);    //how long through seg
1346
1347                 if (seg_time) {
1348                         flydata->angstep.x = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.p,dest_angles.p),seg_time)));
1349                         flydata->angstep.z = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.b,dest_angles.b),seg_time)));
1350                         flydata->angstep.y = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.h,dest_angles.h),seg_time)));
1351
1352                 }
1353                 else {
1354                         flydata->angles = dest_angles;
1355                         flydata->angstep.x = flydata->angstep.y = flydata->angstep.z = 0;
1356                 }
1357         }
1358
1359         flydata->first_time=0;
1360 }
1361
1362 #define JOY_NULL 15
1363 #define ROT_SPEED 8             //rate of rotation while key held down
1364 #define VEL_SPEED (15)  //rate of acceleration while key held down
1365
1366 extern short old_joy_x,old_joy_y;       //position last time around
1367
1368 #include "key.h"
1369 #include "joy.h"
1370
1371 #ifdef SLEW_ON          //this is a special routine for slewing around external scene
1372 int _do_slew_movement(object *obj, int check_keys, int check_joy )
1373 {
1374         int moved = 0;
1375         vms_vector svel, movement;                              //scaled velocity (per this frame)
1376         vms_matrix rotmat,new_pm;
1377         int joy_x,joy_y,btns;
1378         int joyx_moved,joyy_moved;
1379         vms_angvec rotang;
1380
1381         if (keyd_pressed[KEY_PAD5])
1382                 vm_vec_zero(&obj->phys_info.velocity);
1383
1384         if (check_keys) {
1385                 obj->phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD9) - key_down_time(KEY_PAD7));
1386                 obj->phys_info.velocity.y += VEL_SPEED * (key_down_time(KEY_PADMINUS) - key_down_time(KEY_PADPLUS));
1387                 obj->phys_info.velocity.z += VEL_SPEED * (key_down_time(KEY_PAD8) - key_down_time(KEY_PAD2));
1388
1389                 rotang.pitch =  (key_down_time(KEY_LBRACKET) - key_down_time(KEY_RBRACKET))/ROT_SPEED;
1390                 rotang.bank  = (key_down_time(KEY_PAD1) - key_down_time(KEY_PAD3))/ROT_SPEED;
1391                 rotang.head  = (key_down_time(KEY_PAD6) - key_down_time(KEY_PAD4))/ROT_SPEED;
1392         }
1393         else
1394                 rotang.pitch = rotang.bank  = rotang.head  = 0;
1395
1396         //check for joystick movement
1397
1398         if (check_joy && joy_present)   {
1399                 joy_get_pos(&joy_x,&joy_y);
1400                 btns=joy_get_btns();
1401
1402                 joyx_moved = (abs(joy_x - old_joy_x)>JOY_NULL);
1403                 joyy_moved = (abs(joy_y - old_joy_y)>JOY_NULL);
1404
1405                 if (abs(joy_x) < JOY_NULL) joy_x = 0;
1406                 if (abs(joy_y) < JOY_NULL) joy_y = 0;
1407
1408                 if (btns)
1409                         if (!rotang.pitch) rotang.pitch = fixmul(-joy_y * 512,FrameTime); else;
1410                 else
1411                         if (joyy_moved) obj->phys_info.velocity.z = -joy_y * 8192;
1412
1413                 if (!rotang.head) rotang.head = fixmul(joy_x * 512,FrameTime);
1414
1415                 if (joyx_moved) old_joy_x = joy_x;
1416                 if (joyy_moved) old_joy_y = joy_y;
1417         }
1418
1419         moved = rotang.pitch | rotang.bank | rotang.head;
1420
1421         vm_angles_2_matrix(&rotmat,&rotang);
1422         vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
1423         obj->orient = new_pm;
1424         vm_transpose_matrix(&new_pm);           //make those columns rows
1425
1426         moved |= obj->phys_info.velocity.x | obj->phys_info.velocity.y | obj->phys_info.velocity.z;
1427
1428         svel = obj->phys_info.velocity;
1429         vm_vec_scale(&svel,FrameTime);          //movement in this frame
1430         vm_vec_rotate(&movement,&svel,&new_pm);
1431
1432         vm_vec_add2(&obj->pos,&movement);
1433
1434         moved |= (movement.x || movement.y || movement.z);
1435
1436         return moved;
1437 }
1438 #endif
1439
1440 #define LINE_LEN        80
1441 #define NUM_VARS        8
1442
1443 #define STATION_DIST    i2f(1024)
1444
1445 int convert_ext( char *dest, char *ext )
1446 {
1447         char *t;
1448
1449         t = strchr(dest,'.');
1450
1451         if (t && (t-dest <= 8)) {
1452                 t[1] = ext[0];
1453                 t[2] = ext[1];
1454                 t[3] = ext[2];
1455                 return 1;
1456         }
1457         else
1458                 return 0;
1459 }
1460
1461 //called for each level to load & setup the exit sequence
1462 void load_endlevel_data(int level_num)
1463 {
1464         char filename[13];
1465         char line[LINE_LEN],*p;
1466         CFILE *ifile;
1467         int var,segnum,sidenum;
1468         int exit_side = 0;
1469         int have_binary = 0;
1470
1471         endlevel_data_loaded = 0;               //not loaded yet
1472
1473 try_again:
1474         ;
1475
1476         if (level_num<0)                //secret level
1477                 strcpy(filename,Secret_level_names[-level_num-1]);
1478         else                                    //normal level
1479                 strcpy(filename,Level_names[level_num-1]);
1480
1481         if (!convert_ext(filename,"END"))
1482                 Error("Error converting filename <%s> for endlevel data\n",filename);
1483
1484         ifile = cfopen(filename,"rb");
1485
1486         if (!ifile) {
1487
1488                 convert_ext(filename,"txb");
1489
1490                 ifile = cfopen(filename,"rb");
1491
1492                 if (!ifile) {
1493                         if (level_num==1) {
1494                                 con_printf(CON_DEBUG, "Cannot load file text of binary version of <%s>\n",filename);
1495                                 endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1496                                 return;
1497                         }
1498                         else {
1499                                 level_num = 1;
1500                                 goto try_again;
1501                         }
1502                 }
1503
1504                 have_binary = 1;
1505         }
1506
1507         //ok...this parser is pretty simple.  It ignores comments, but
1508         //everything else must be in the right place
1509
1510         var = 0;
1511
1512         while (cfgets(line,LINE_LEN,ifile)) {
1513
1514                 if (have_binary)
1515                         decode_text_line (line);
1516
1517                 if ((p=strchr(line,';'))!=NULL)
1518                         *p = 0;         //cut off comment
1519
1520                 for (p=line+strlen(line);p>line && isspace(*p);*p--=0);
1521                 for (p=line;isspace(*p);p++);
1522
1523                 if (!*p)                //empty line
1524                         continue;
1525
1526                 switch (var) {
1527
1528                         case 0: {                                               //ground terrain
1529                                 int iff_error;
1530                                 ubyte pal[768];
1531
1532                                 if (terrain_bm_instance.bm_data)
1533                                         d_free(terrain_bm_instance.bm_data);
1534
1535                                 Assert(terrain_bm_instance.bm_data == NULL);
1536
1537                                 iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
1538                                 if (iff_error != IFF_NO_ERROR) {
1539                                         Warning("Can't load exit terrain from file %s: IFF error: %s",
1540                                                 p, iff_errormsg(iff_error));
1541                                         endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1542                                         return;
1543                                 }
1544
1545                                 terrain_bitmap = &terrain_bm_instance;
1546
1547                                 gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
1548
1549                                 break;
1550                         }
1551
1552                         case 1:                                                 //height map
1553
1554                                 load_terrain(p);
1555                                 break;
1556
1557
1558                         case 2:
1559
1560                                 sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
1561                                 break;
1562
1563                         case 3:                                                 //exit heading
1564
1565                                 exit_angles.h = i2f(atoi(p))/360;
1566                                 break;
1567
1568                         case 4: {                                               //planet bitmap
1569                                 int iff_error;
1570                                 ubyte pal[768];
1571
1572                                 if (satellite_bm_instance.bm_data)
1573                                         d_free(satellite_bm_instance.bm_data);
1574
1575                                 iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
1576                                 if (iff_error != IFF_NO_ERROR) {
1577                                         Warning("Can't load exit satellite from file %s: IFF error: %s",
1578                                                 p, iff_errormsg(iff_error));
1579                                         endlevel_data_loaded = 0; // won't be able to play endlevel sequence
1580                                         return;
1581                                 }
1582
1583                                 satellite_bitmap = &satellite_bm_instance;
1584                                 gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
1585
1586                                 break;
1587                         }
1588
1589                         case 5:                                                 //earth pos
1590                         case 7: {                                               //station pos
1591                                 vms_matrix tm;
1592                                 vms_angvec ta;
1593                                 int pitch,head;
1594
1595                                 sscanf(p,"%d,%d",&head,&pitch);
1596
1597                                 ta.h = i2f(head)/360;
1598                                 ta.p = -i2f(pitch)/360;
1599                                 ta.b = 0;
1600
1601                                 vm_angles_2_matrix(&tm,&ta);
1602
1603                                 if (var==5)
1604                                         satellite_pos = tm.fvec;
1605                                         //vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
1606                                 else
1607                                         station_pos = tm.fvec;
1608
1609                                 break;
1610                         }
1611
1612                         case 6:                                         //planet size
1613                                 satellite_size = i2f(atoi(p));
1614                                 break;
1615                 }
1616
1617                 var++;
1618
1619         }
1620
1621         Assert(var == NUM_VARS);
1622
1623
1624         // OK, now the data is loaded.  Initialize everything
1625
1626         //find the exit sequence by searching all segments for a side with
1627         //children == -2
1628
1629         for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
1630                 for (sidenum=0;sidenum<6;sidenum++)
1631                         if (Segments[segnum].children[sidenum] == -2) {
1632                                 exit_segnum = segnum;
1633                                 exit_side = sidenum;
1634                                 break;
1635                         }
1636
1637         Assert(exit_segnum!=-1);
1638
1639         compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
1640         extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
1641         compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
1642
1643         vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
1644
1645         //compute orientation of surface
1646         {
1647                 vms_vector tv;
1648                 vms_matrix exit_orient,tm;
1649
1650                 vm_angles_2_matrix(&exit_orient,&exit_angles);
1651                 vm_transpose_matrix(&exit_orient);
1652                 vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
1653
1654                 vm_copy_transpose_matrix(&tm,&surface_orient);
1655                 vm_vec_rotate(&tv,&station_pos,&tm);
1656                 vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
1657
1658                 vm_vec_rotate(&tv,&satellite_pos,&tm);
1659                 vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
1660
1661                 vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
1662                 vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
1663
1664
1665         }
1666
1667         cfclose(ifile);
1668
1669         endlevel_data_loaded = 1;
1670
1671 }