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