main/endlevel.c

   1 /* $ Id: $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 #ifdef HAVE_CONFIG_H
  16 #include <conf.h>
  17 #endif
  18
  19 #ifdef RCS
  20 static char rcsid[] = "$Id: endlevel.c,v 1.10 2002-09-14 00:20:44 btb Exp $";
  21 #endif
  22
  23 //#define SLEW_ON 1
  24
  25 //#define _MARK_ON
  26
  27 #include <stdlib.h>
  28
  29
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <ctype.h> // for isspace
  33
  34 #include "fix.h"
  35 #include "vecmat.h"
  36 #include "gr.h"
  37 #include "3d.h"
  38 #include "error.h"
  39 #include "palette.h"
  40 #include "iff.h"
  41 #include "mono.h"
  42 #include "texmap.h"
  43 #include "fvi.h"
  44 #include "u_mem.h"
  45 #include "sounds.h"
  46
  47 #include "inferno.h"
  48 #include "endlevel.h"
  49 #include "object.h"
  50 #include "game.h"
  51 #include "screens.h"
  52 #include "gauges.h"
  53 #include "wall.h"
  54 #include "terrain.h"
  55 #include "polyobj.h"
  56 #include "bm.h"
  57 #include "gameseq.h"
  58 #include "newdemo.h"
  59 #include "multi.h"
  60 #include "vclip.h"
  61 #include "fireball.h"
  62 #ifdef NETWORK
  63 #include "network.h"
  64 #endif
  65 #include "text.h"
  66 #include "digi.h"
  67 #include "cfile.h"
  68 #include "compbit.h"
  69 #include "songs.h"
  70 #include "movie.h"
  71 #include "render.h"
  72
  73 typedef struct flythrough_data {
  74         object          *obj;
  75         vms_angvec      angles;                 //orientation in angles
  76         vms_vector      step;                           //how far in a second
  77         vms_vector      angstep;                        //rotation per second
  78         fix                     speed;                  //how fast object is moving
  79         vms_vector      headvec;                        //where we want to be pointing
  80         int                     first_time;             //flag for if first time through
  81         fix                     offset_frac;    //how far off-center as portion of way
  82         fix                     offset_dist;    //how far currently off-center
  83 } flythrough_data;
  84
  85 //endlevel sequence states
  86
  87 #define EL_OFF                          0               //not in endlevel
  88 #define EL_FLYTHROUGH   1               //auto-flythrough in tunnel
  89 #define EL_LOOKBACK             2               //looking back at player
  90 #define EL_OUTSIDE              3               //flying outside for a while
  91 #define EL_STOPPED              4               //stopped, watching explosion
  92 #define EL_PANNING              5               //panning around, watching player
  93 #define EL_CHASING              6               //chasing player to station
  94
  95 #define SHORT_SEQUENCE  1               //if defined, end sequnce when panning starts
  96 //#define STATION_ENABLED       1               //if defined, load & use space station model
  97
  98 int Endlevel_sequence = 0;
  99
 100 extern fix player_speed;
 101
 102 int transition_segnum,exit_segnum;
 103
 104 object *endlevel_camera;
 105
 106 #define FLY_SPEED i2f(50)
 107
 108 void do_endlevel_flythrough(int n);
 109 void draw_stars();
 110 int find_exit_side(object *obj);
 111 void generate_starfield();
 112 void start_endlevel_flythrough(int n,object *obj,fix speed);
 113 void start_rendered_endlevel_sequence();
 114
 115 #ifdef D2_OEM
 116 char movie_table[] =    {       'a','a','a','a','d','d','d','d' };
 117 #else
 118 char movie_table[] =    {       'a','b','c',
 119                                                 #ifndef SHAREWARE
 120                                                         'a',
 121                                                         'd','f','d','f',
 122                                                         'g','h','i','g',
 123                                                         'j','k','l','j',
 124                                                         'm','o','m','o',
 125                                                         'p','q','p','q'
 126                                                 #endif
 127                                         };
 128 #endif
 129
 130 #define N_MOVIES (sizeof(movie_table) / sizeof(*movie_table))
 131
 132 #ifndef SHAREWARE
 133 #ifdef D2_OEM
 134 char movie_table_secret[] = {'a','d'};
 135 #else
 136 char movie_table_secret[] = {'a','d','g','j','m','p'};
 137 #endif
 138 #define N_MOVIES_SECRET (sizeof(movie_table_secret) / sizeof(*movie_table_secret))
 139 #else
 140 #define N_MOVIES_SECRET 0
 141 #endif
 142
 143
 144 #define FLY_ACCEL i2f(5)
 145
 146 fix cur_fly_speed,desired_fly_speed;
 147
 148 extern int matt_find_connect_side(int seg0,int seg1);
 149
 150 grs_bitmap *satellite_bitmap,*station_bitmap,*terrain_bitmap;   //!!*exit_bitmap,
 151 vms_vector satellite_pos,satellite_upvec;
 152 //!!grs_bitmap **exit_bitmap_list[1];
 153 int station_modelnum,exit_modelnum,destroyed_exit_modelnum;
 154
 155 vms_vector station_pos = {0xf8c4<<10,0x3c1c<<12,0x372<<10};
 156
 157 #ifdef STATION_ENABLED
 158 grs_bitmap *station_bitmap;
 159 grs_bitmap **station_bitmap_list[1];
 160 int station_modelnum;
 161 #endif
 162
 163 vms_vector mine_exit_point;
 164 vms_vector mine_ground_exit_point;
 165 vms_vector mine_side_exit_point;
 166 vms_matrix mine_exit_orient;
 167
 168 int outside_mine;
 169
 170 grs_bitmap terrain_bm_instance;
 171 grs_bitmap satellite_bm_instance;
 172
 173 //find delta between two angles
 174 fixang delta_ang(fixang a,fixang b)
 175 {
 176         fixang delta0,delta1;
 177
 178         return (abs(delta0 = a - b) < abs(delta1 = b - a)) ? delta0 : delta1;
 179
 180 }
 181
 182 //return though which side of seg0 is seg1
 183 int matt_find_connect_side(int seg0,int seg1)
 184 {
 185         segment *Seg=&Segments[seg0];
 186         int i;
 187
 188         for (i=MAX_SIDES_PER_SEGMENT;i--;) if (Seg->children[i]==seg1) return i;
 189
 190         return -1;
 191 }
 192
 193 extern int Kmatrix_nomovie_message;
 194
 195 #if defined(D2_OEM) || defined(COMPILATION)
 196 #define MOVIE_REQUIRED 0
 197 #else
 198 #define MOVIE_REQUIRED 1
 199 #endif
 200
 201 //returns movie played status.  see movie.h
 202 int start_endlevel_movie()
 203 {
 204         char movie_name[] = "esa.mve";
 205         int r;
 206         ubyte save_pal[768];
 207
 208         //Assert(Current_mission_num == 0);             //only play movie for built-in mission
 209
 210         //Assert(N_MOVIES >= Last_level);
 211         //Assert(N_MOVIES_SECRET >= -Last_secret_level);
 212
 213         #ifndef D2_OEM
 214         if (Current_level_num == Last_level)
 215                 return 1;       //don't play movie
 216         #endif
 217
 218         if (Current_level_num > 0)
 219                 movie_name[2] = movie_table[Current_level_num-1];
 220         else {
 221                 #ifndef SHAREWARE
 222                         return 0;       //no escapes for secret level
 223                 #else
 224                         Error("Invalid level number <%d>",Current_level_num);
 225                 #endif
 226         }
 227
 228         memcpy(save_pal,gr_palette,768);
 229
 230         #ifndef SHAREWARE
 231                 r=PlayMovie(movie_name,(Game_mode & GM_MULTI)?0:MOVIE_REQUIRED);
 232         #else
 233                 return  0;      // movie not played for shareware
 234         #endif
 235
 236         if (Newdemo_state == ND_STATE_PLAYBACK) {
 237                 set_screen_mode(SCREEN_GAME);
 238                 memcpy(gr_palette,save_pal,768);
 239         }
 240
 241 #ifdef NETWORK
 242    if (r==MOVIE_NOT_PLAYED && (Game_mode & GM_MULTI))
 243           Kmatrix_nomovie_message=1;
 244         else
 245           Kmatrix_nomovie_message=0;
 246 #endif
 247
 248         return (r);
 249
 250 }
 251
 252 void
 253 free_endlevel_data()
 254 {
 255         if (terrain_bm_instance.bm_data)
 256                 d_free(terrain_bm_instance.bm_data);
 257
 258         if (satellite_bm_instance.bm_data)
 259                 d_free(satellite_bm_instance.bm_data);
 260
 261         free_exit_model_data();
 262 }
 263
 264 void init_endlevel()
 265 {
 266         //##satellite_bitmap = bm_load("earth.bbm");
 267         //##terrain_bitmap = bm_load("moon.bbm");
 268         //##
 269         //##load_terrain("matt5b.bbm");         //load bitmap as height array
 270         //##//load_terrain("ttest2.bbm");               //load bitmap as height array
 271
 272         #ifdef STATION_ENABLED
 273         station_bitmap = bm_load("steel3.bbm");
 274         station_bitmap_list[0] = &station_bitmap;
 275
 276         station_modelnum = load_polygon_model("station.pof",1,station_bitmap_list,NULL);
 277         #endif
 278
 279 //!!    exit_bitmap = bm_load("steel1.bbm");
 280 //!!    exit_bitmap_list[0] = &exit_bitmap;
 281
 282 //!!    exit_modelnum = load_polygon_model("exit01.pof",1,exit_bitmap_list,NULL);
 283 //!!    destroyed_exit_modelnum = load_polygon_model("exit01d.pof",1,exit_bitmap_list,NULL);
 284
 285         generate_starfield();
 286
 287         atexit(free_endlevel_data);
 288
 289         terrain_bm_instance.bm_data = satellite_bm_instance.bm_data = NULL;
 290 }
 291
 292 object external_explosion;
 293 int ext_expl_playing,mine_destroyed;
 294
 295 extern fix flash_scale;
 296
 297 vms_angvec exit_angles={-0xa00,0,0};
 298
 299 vms_matrix surface_orient;
 300
 301 int endlevel_data_loaded=0;
 302 extern char last_palette_loaded[];
 303
 304 void start_endlevel_sequence()
 305 {
 306         int     i;
 307         int movie_played = MOVIE_NOT_PLAYED;
 308         static int inited = 0;
 309
 310         if (!inited && Piggy_hamfile_version >= 3) {
 311                 load_exit_models();
 312                 inited = 1;
 313         }
 314
 315         if (Newdemo_state == ND_STATE_RECORDING)                // stop demo recording
 316                 Newdemo_state = ND_STATE_PAUSED;
 317
 318         if (Newdemo_state == ND_STATE_PLAYBACK) {               // don't do this if in playback mode
 319                 if (Current_mission_num == 0)           //only play movie for built-in mission
 320                         start_endlevel_movie();
 321                 strcpy(last_palette_loaded,"");         //force palette load next time
 322                 return;
 323         }
 324
 325         if (Player_is_dead || ConsoleObject->flags&OF_SHOULD_BE_DEAD)
 326                 return;                         //don't start if dead!
 327
 328         //      Dematerialize Buddy!
 329         for (i=0; i<=Highest_object_index; i++)
 330                 if (Objects[i].type == OBJ_ROBOT)
 331                         if (Robot_info[Objects[i].id].companion) {
 332                                 object_create_explosion(Objects[i].segnum, &Objects[i].pos, F1_0*7/2, VCLIP_POWERUP_DISAPPEARANCE );
 333                                 Objects[i].flags |= OF_SHOULD_BE_DEAD;
 334                         }
 335
 336         Players[Player_num].homing_object_dist = -F1_0; // Turn off homing sound.
 337
 338         reset_rear_view();              //turn off rear view if set
 339
 340 #ifdef NETWORK
 341         if (Game_mode & GM_MULTI) {
 342                 multi_send_endlevel_start(0);
 343                 network_do_frame(1, 1);
 344         }
 345 #endif
 346
 347         if (1) { //Current_mission_num == 0) {          //only play movie for built-in mission
 348
 349                 //try playing movie.  If it plays, great. if not, do rendered ending
 350
 351                 if (!(Game_mode & GM_MULTI))
 352                         movie_played = start_endlevel_movie();
 353
 354                 if (movie_played == MOVIE_NOT_PLAYED) {         //don't have movie.  Do rendered sequence
 355                 #ifndef WINDOWS
 356                         start_rendered_endlevel_sequence();
 357                 #endif
 358                         return;
 359                 }
 360
 361         }
 362         else
 363                 gr_palette_fade_out(gr_palette, 32, 0);
 364
 365         PlayerFinishedLevel(0);         //done with level
 366 }
 367
 368 static int cockpit_mode_save;
 369
 370 void start_rendered_endlevel_sequence()
 371 {
 372         int last_segnum,exit_side,tunnel_length;
 373
 374         {
 375                 int segnum,old_segnum,entry_side,i;
 376
 377                 //count segments in exit tunnel
 378
 379                 old_segnum = ConsoleObject->segnum;
 380                 exit_side = find_exit_side(ConsoleObject);
 381                 segnum = Segments[old_segnum].children[exit_side];
 382                 tunnel_length = 0;
 383                 do {
 384                         entry_side = matt_find_connect_side(segnum,old_segnum);
 385                         exit_side = Side_opposite[entry_side];
 386                         old_segnum = segnum;
 387                         segnum = Segments[segnum].children[exit_side];
 388                         tunnel_length++;
 389                 } while (segnum >= 0);
 390
 391                 if (segnum != -2) {
 392                         PlayerFinishedLevel(0);         //don't do special sequence
 393                         return;
 394                 }
 395
 396                 last_segnum = old_segnum;
 397
 398                 //now pick transition segnum 1/3 of the way in
 399
 400                 old_segnum = ConsoleObject->segnum;
 401                 exit_side = find_exit_side(ConsoleObject);
 402                 segnum = Segments[old_segnum].children[exit_side];
 403                 i=tunnel_length/3;
 404                 while (i--) {
 405
 406                         entry_side = matt_find_connect_side(segnum,old_segnum);
 407                         exit_side = Side_opposite[entry_side];
 408                         old_segnum = segnum;
 409                         segnum = Segments[segnum].children[exit_side];
 410                 }
 411                 transition_segnum = segnum;
 412
 413         }
 414
 415         cockpit_mode_save = Cockpit_mode;
 416
 417         #ifdef NETWORK
 418         if (Game_mode & GM_MULTI) {
 419                 multi_send_endlevel_start(0);
 420                 network_do_frame(1, 1);
 421         }
 422         #endif
 423
 424         #ifdef SHAREWARE
 425         Assert(last_segnum == exit_segnum);
 426         //      songs_play_song( SONG_ENDLEVEL, 0 );    // JTS: Until we get an exit song, just don't worry
 427         #endif
 428
 429         Endlevel_sequence = EL_FLYTHROUGH;
 430
 431         ConsoleObject->movement_type = MT_NONE;                 //movement handled by flythrough
 432         ConsoleObject->control_type = CT_NONE;
 433
 434         Game_suspended |= SUSP_ROBOTS;          //robots don't move
 435
 436         cur_fly_speed = desired_fly_speed = FLY_SPEED;
 437
 438         start_endlevel_flythrough(0,ConsoleObject,cur_fly_speed);               //initialize
 439
 440         HUD_init_message( TXT_EXIT_SEQUENCE );
 441
 442         outside_mine = ext_expl_playing = 0;
 443
 444         flash_scale = f1_0;
 445
 446         //init_endlevel();
 447
 448         mine_destroyed=0;
 449
 450 }
 451
 452 extern flythrough_data fly_objects[];
 453
 454 extern object *slew_obj;
 455
 456 vms_angvec player_angles,player_dest_angles;
 457 vms_angvec camera_desired_angles,camera_cur_angles;
 458
 459 #define CHASE_TURN_RATE (0x4000/4)              //max turn per second
 460
 461 //returns bitmask of which angles are at dest. bits 0,1,2 = p,b,h
 462 int chase_angles(vms_angvec *cur_angles,vms_angvec *desired_angles)
 463 {
 464         vms_angvec delta_angs,alt_angles,alt_delta_angs;
 465         fix total_delta,alt_total_delta;
 466         fix frame_turn;
 467         int mask=0;
 468
 469         delta_angs.p = desired_angles->p - cur_angles->p;
 470         delta_angs.h = desired_angles->h - cur_angles->h;
 471         delta_angs.b = desired_angles->b - cur_angles->b;
 472 //delta_angs.b = 0;
 473
 474 //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);
 475
 476         total_delta = abs(delta_angs.p) + abs(delta_angs.b) + abs(delta_angs.h);
 477
 478         alt_angles.p = f1_0/2 - cur_angles->p;
 479         alt_angles.b = cur_angles->b + f1_0/2;
 480         alt_angles.h = cur_angles->h + f1_0/2;
 481
 482         alt_delta_angs.p = desired_angles->p - alt_angles.p;
 483         alt_delta_angs.h = desired_angles->h - alt_angles.h;
 484         alt_delta_angs.b = desired_angles->b - alt_angles.b;
 485 //alt_delta_angs.b = 0;
 486
 487         alt_total_delta = abs(alt_delta_angs.p) + abs(alt_delta_angs.b) + abs(alt_delta_angs.h);
 488
 489 //printf("Total delta = %x, alt total_delta = %x\n",total_delta,alt_total_delta);
 490
 491         if (alt_total_delta < total_delta) {
 492                 //mprintf((0,"FLIPPING ANGLES!\n"));
 493                 //printf("FLIPPING ANGLES!\n");
 494                 *cur_angles = alt_angles;
 495                 delta_angs = alt_delta_angs;
 496         }
 497
 498         frame_turn = fixmul(FrameTime,CHASE_TURN_RATE);
 499
 500         if (abs(delta_angs.p) < frame_turn) {
 501                 cur_angles->p = desired_angles->p;
 502                 mask |= 1;
 503         }
 504         else
 505                 if (delta_angs.p > 0)
 506                         cur_angles->p += frame_turn;
 507                 else
 508                         cur_angles->p -= frame_turn;
 509
 510         if (abs(delta_angs.b) < frame_turn) {
 511                 cur_angles->b = desired_angles->b;
 512                 mask |= 2;
 513         }
 514         else
 515                 if (delta_angs.b > 0)
 516                         cur_angles->b += frame_turn;
 517                 else
 518                         cur_angles->b -= frame_turn;
 519 //cur_angles->b = 0;
 520
 521         if (abs(delta_angs.h) < frame_turn) {
 522                 cur_angles->h = desired_angles->h;
 523                 mask |= 4;
 524         }
 525         else
 526                 if (delta_angs.h > 0)
 527                         cur_angles->h += frame_turn;
 528                 else
 529                         cur_angles->h -= frame_turn;
 530
 531         return mask;
 532 }
 533
 534 void stop_endlevel_sequence()
 535 {
 536         Interpolation_method = 0;
 537
 538         gr_palette_fade_out(gr_palette, 32, 0);
 539
 540         select_cockpit(cockpit_mode_save);
 541
 542         Endlevel_sequence = EL_OFF;
 543
 544         PlayerFinishedLevel(0);
 545
 546 }
 547
 548 #define VCLIP_BIG_PLAYER_EXPLOSION      58
 549
 550 //--unused-- vms_vector upvec = {0,f1_0,0};
 551
 552 //find the angle between the player's heading & the station
 553 void get_angs_to_object(vms_angvec *av,vms_vector *targ_pos,vms_vector *cur_pos)
 554 {
 555         vms_vector tv;
 556
 557         vm_vec_sub(&tv,targ_pos,cur_pos);
 558
 559         vm_extract_angles_vector(av,&tv);
 560 }
 561
 562 void do_endlevel_frame()
 563 {
 564         static fix timer;
 565         static fix bank_rate;
 566         vms_vector save_last_pos;
 567         static fix explosion_wait1=0;
 568         static fix explosion_wait2=0;
 569         static fix ext_expl_halflife;
 570
 571         save_last_pos = ConsoleObject->last_pos;        //don't let move code change this
 572         object_move_all();
 573         ConsoleObject->last_pos = save_last_pos;
 574
 575         if (ext_expl_playing) {
 576
 577                 external_explosion.lifeleft -= FrameTime;
 578                 do_explosion_sequence(&external_explosion);
 579
 580                 if (external_explosion.lifeleft < ext_expl_halflife)
 581                         mine_destroyed = 1;
 582
 583                 if (external_explosion.flags & OF_SHOULD_BE_DEAD)
 584                         ext_expl_playing = 0;
 585         }
 586
 587         if (cur_fly_speed != desired_fly_speed) {
 588                 fix delta = desired_fly_speed - cur_fly_speed;
 589                 fix frame_accel = fixmul(FrameTime,FLY_ACCEL);
 590
 591                 if (abs(delta) < frame_accel)
 592                         cur_fly_speed = desired_fly_speed;
 593                 else
 594                         if (delta > 0)
 595                                 cur_fly_speed += frame_accel;
 596                         else
 597                                 cur_fly_speed -= frame_accel;
 598         }
 599
 600         //do big explosions
 601         if (!outside_mine) {
 602
 603                 if (Endlevel_sequence==EL_OUTSIDE) {
 604                         vms_vector tvec;
 605
 606                         vm_vec_sub(&tvec,&ConsoleObject->pos,&mine_side_exit_point);
 607
 608                         if (vm_vec_dot(&tvec,&mine_exit_orient.fvec) > 0) {
 609                                 object *tobj;
 610
 611                                 outside_mine = 1;
 612
 613                                 tobj = object_create_explosion(exit_segnum,&mine_side_exit_point,i2f(50),VCLIP_BIG_PLAYER_EXPLOSION);
 614
 615                                 if (tobj) {
 616                                         external_explosion = *tobj;
 617
 618                                         tobj->flags |= OF_SHOULD_BE_DEAD;
 619
 620                                         flash_scale = 0;        //kill lights in mine
 621
 622                                         ext_expl_halflife = tobj->lifeleft;
 623
 624                                         ext_expl_playing = 1;
 625                                 }
 626
 627                                 digi_link_sound_to_pos( SOUND_BIG_ENDLEVEL_EXPLOSION, exit_segnum, 0, &mine_side_exit_point, 0, i2f(3)/4 );
 628                         }
 629                 }
 630
 631                 //do explosions chasing player
 632                 if ((explosion_wait1-=FrameTime) < 0) {
 633                         vms_vector tpnt;
 634                         int segnum;
 635                         object *expl;
 636                         static int sound_count;
 637
 638                         vm_vec_scale_add(&tpnt,&ConsoleObject->pos,&ConsoleObject->orient.fvec,-ConsoleObject->size*5);
 639                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*15);
 640                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*15);
 641
 642                         segnum = find_point_seg(&tpnt,ConsoleObject->segnum);
 643
 644                         if (segnum != -1) {
 645                                 expl = object_create_explosion(segnum,&tpnt,i2f(20),VCLIP_BIG_PLAYER_EXPLOSION);
 646                                 if (d_rand()<10000 || ++sound_count==7) {               //pseudo-random
 647                                         digi_link_sound_to_pos( SOUND_TUNNEL_EXPLOSION, segnum, 0, &tpnt, 0, F1_0 );
 648                                         sound_count=0;
 649                                 }
 650                         }
 651
 652                         explosion_wait1 = 0x2000 + d_rand()/4;
 653
 654                 }
 655         }
 656
 657         //do little explosions on walls
 658         if (Endlevel_sequence >= EL_FLYTHROUGH && Endlevel_sequence < EL_OUTSIDE)
 659                 if ((explosion_wait2-=FrameTime) < 0) {
 660                         vms_vector tpnt;
 661                         fvi_query fq;
 662                         fvi_info hit_data;
 663
 664                         //create little explosion on wall
 665
 666                         vm_vec_copy_scale(&tpnt,&ConsoleObject->orient.rvec,(d_rand()-RAND_MAX/2)*100);
 667                         vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.uvec,(d_rand()-RAND_MAX/2)*100);
 668                         vm_vec_add2(&tpnt,&ConsoleObject->pos);
 669
 670                         if (Endlevel_sequence == EL_FLYTHROUGH)
 671                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*200);
 672                         else
 673                                 vm_vec_scale_add2(&tpnt,&ConsoleObject->orient.fvec,d_rand()*60);
 674
 675                         //find hit point on wall
 676
 677                         fq.p0 = &ConsoleObject->pos;
 678                         fq.p1 = &tpnt;
 679                         fq.startseg = ConsoleObject->segnum;
 680                         fq.rad = 0;
 681                         fq.thisobjnum = 0;
 682                         fq.ignore_obj_list = NULL;
 683                         fq.flags = 0;
 684
 685                         find_vector_intersection(&fq,&hit_data);
 686
 687                         if (hit_data.hit_type==HIT_WALL && hit_data.hit_seg!=-1)
 688                                 object_create_explosion(hit_data.hit_seg,&hit_data.hit_pnt,i2f(3)+d_rand()*6,VCLIP_SMALL_EXPLOSION);
 689
 690                         explosion_wait2 = (0xa00 + d_rand()/8)/2;
 691                 }
 692
 693         switch (Endlevel_sequence) {
 694
 695                 case EL_OFF: return;
 696
 697                 case EL_FLYTHROUGH: {
 698
 699                         do_endlevel_flythrough(0);
 700
 701                         if (ConsoleObject->segnum == transition_segnum) {
 702
 703                                 if (start_endlevel_movie() != MOVIE_NOT_PLAYED)
 704                                         stop_endlevel_sequence();
 705                                 else {
 706                                         int objnum;
 707
 708                                         //songs_play_song( SONG_ENDLEVEL, 0 );
 709
 710                                         Endlevel_sequence = EL_LOOKBACK;
 711
 712                                         objnum = obj_create(OBJ_CAMERA, 0,
 713                                                             ConsoleObject->segnum,&ConsoleObject->pos,&ConsoleObject->orient,0,
 714                                                             CT_NONE,MT_NONE,RT_NONE);
 715
 716                                         if (objnum == -1) { //can't get object, so abort
 717                                                 mprintf((1, "Can't get object for endlevel sequence.  Aborting endlevel sequence.\n"));
 718                                                 stop_endlevel_sequence();
 719                                                 return;
 720                                         }
 721
 722                                         Viewer = endlevel_camera = &Objects[objnum];
 723
 724                                         select_cockpit(CM_LETTERBOX);
 725
 726                                         fly_objects[1] = fly_objects[0];
 727                                         fly_objects[1].obj = endlevel_camera;
 728                                         fly_objects[1].speed = (5*cur_fly_speed)/4;
 729                                         fly_objects[1].offset_frac = 0x4000;
 730
 731                                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,i2f(7));
 732
 733                                         timer=0x20000;
 734
 735                                 }
 736                         }
 737
 738                         break;
 739                 }
 740
 741
 742                 case EL_LOOKBACK: {
 743
 744                         do_endlevel_flythrough(0);
 745                         do_endlevel_flythrough(1);
 746
 747                         if (timer>0) {
 748
 749                                 timer -= FrameTime;
 750
 751                                 if (timer < 0)          //reduce speed
 752                                         fly_objects[1].speed = fly_objects[0].speed;
 753                         }
 754
 755                         if (endlevel_camera->segnum == exit_segnum) {
 756                                 vms_angvec cam_angles,exit_seg_angles;
 757
 758                                 Endlevel_sequence = EL_OUTSIDE;
 759
 760                                 timer = i2f(2);
 761
 762                                 vm_vec_negate(&endlevel_camera->orient.fvec);
 763                                 vm_vec_negate(&endlevel_camera->orient.rvec);
 764
 765                                 vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 766                                 vm_extract_angles_matrix(&exit_seg_angles,&mine_exit_orient);
 767                                 bank_rate = (-exit_seg_angles.b - cam_angles.b)/2;
 768
 769                                 ConsoleObject->control_type = endlevel_camera->control_type = CT_NONE;
 770
 771 #ifdef SLEW_ON
 772  slew_obj = endlevel_camera;
 773 #endif
 774                         }
 775
 776                         break;
 777                 }
 778
 779                 case EL_OUTSIDE: {
 780                         #ifndef SLEW_ON
 781                         vms_angvec cam_angles;
 782                         #endif
 783
 784                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 785 #ifndef SLEW_ON
 786                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,-2*cur_fly_speed));
 787                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.uvec,fixmul(FrameTime,-cur_fly_speed/10));
 788
 789                         vm_extract_angles_matrix(&cam_angles,&endlevel_camera->orient);
 790                         cam_angles.b += fixmul(bank_rate,FrameTime);
 791                         vm_angles_2_matrix(&endlevel_camera->orient,&cam_angles);
 792 #endif
 793
 794                         timer -= FrameTime;
 795
 796                         if (timer < 0) {
 797
 798                                 Endlevel_sequence = EL_STOPPED;
 799
 800                                 vm_extract_angles_matrix(&player_angles,&ConsoleObject->orient);
 801
 802                                 timer = i2f(3);
 803
 804                         }
 805
 806                         break;
 807                 }
 808
 809                 case EL_STOPPED: {
 810
 811                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 812                         chase_angles(&player_angles,&player_dest_angles);
 813                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 814
 815                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 816
 817                         timer -= FrameTime;
 818
 819                         if (timer < 0) {
 820
 821                                 #ifdef SLEW_ON
 822                                 slew_obj = endlevel_camera;
 823                                 _do_slew_movement(endlevel_camera,1,1);
 824                                 timer += FrameTime;             //make time stop
 825                                 break;
 826                                 #else
 827
 828                                 #ifdef SHORT_SEQUENCE
 829
 830                                 stop_endlevel_sequence();
 831
 832                                 #else
 833                                 Endlevel_sequence = EL_PANNING;
 834
 835                                 vm_extract_angles_matrix(&camera_cur_angles,&endlevel_camera->orient);
 836
 837
 838                                 timer = i2f(3);
 839
 840                                 if (Game_mode & GM_MULTI) { // try to skip part of the seq if multiplayer
 841                                         stop_endlevel_sequence();
 842                                         return;
 843                                 }
 844
 845                                 //mprintf((0,"Switching to pan...\n"));
 846                                 #endif          //SHORT_SEQUENCE
 847                                 #endif          //SLEW_ON
 848
 849                         }
 850                         break;
 851                 }
 852
 853                 #ifndef SHORT_SEQUENCE
 854                 case EL_PANNING: {
 855                         #ifndef SLEW_ON
 856                         int mask;
 857                         #endif
 858
 859                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 860                         chase_angles(&player_angles,&player_dest_angles);
 861                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 862                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 863
 864                         #ifdef SLEW_ON
 865                         _do_slew_movement(endlevel_camera,1,1);
 866                         #else
 867
 868                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 869                         mask = chase_angles(&camera_cur_angles,&camera_desired_angles);
 870                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 871
 872                         if ((mask&5) == 5) {
 873
 874                                 vms_vector tvec;
 875
 876                                 Endlevel_sequence = EL_CHASING;
 877
 878                                 vm_vec_normalized_dir_quick(&tvec,&station_pos,&ConsoleObject->pos);
 879                                 vm_vector_2_matrix(&ConsoleObject->orient,&tvec,&surface_orient.uvec,NULL);
 880
 881                                 desired_fly_speed *= 2;
 882
 883                                 //mprintf((0,"Switching to chase...\n"));
 884
 885                         }
 886                         #endif
 887
 888                         break;
 889                 }
 890
 891                 case EL_CHASING: {
 892                         fix d,speed_scale;
 893
 894                         #ifdef SLEW_ON
 895                         _do_slew_movement(endlevel_camera,1,1);
 896                         #endif
 897
 898                         get_angs_to_object(&camera_desired_angles,&ConsoleObject->pos,&endlevel_camera->pos);
 899                         chase_angles(&camera_cur_angles,&camera_desired_angles);
 900
 901                         #ifndef SLEW_ON
 902                         vm_angles_2_matrix(&endlevel_camera->orient,&camera_cur_angles);
 903                         #endif
 904
 905                         d = vm_vec_dist_quick(&ConsoleObject->pos,&endlevel_camera->pos);
 906
 907                         speed_scale = fixdiv(d,i2f(0x20));
 908                         if (d<f1_0) d=f1_0;
 909
 910                         get_angs_to_object(&player_dest_angles,&station_pos,&ConsoleObject->pos);
 911                         chase_angles(&player_angles,&player_dest_angles);
 912                         vm_angles_2_matrix(&ConsoleObject->orient,&player_angles);
 913
 914                         vm_vec_scale_add2(&ConsoleObject->pos,&ConsoleObject->orient.fvec,fixmul(FrameTime,cur_fly_speed));
 915                         #ifndef SLEW_ON
 916                         vm_vec_scale_add2(&endlevel_camera->pos,&endlevel_camera->orient.fvec,fixmul(FrameTime,fixmul(speed_scale,cur_fly_speed)));
 917
 918                         if (vm_vec_dist(&ConsoleObject->pos,&station_pos) < i2f(10))
 919                                 stop_endlevel_sequence();
 920                         #endif
 921
 922                         break;
 923
 924                 }
 925                 #endif          //ifdef SHORT_SEQUENCE
 926
 927         }
 928 }
 929
 930
 931 #define MIN_D 0x100
 932
 933 //find which side to fly out of
 934 int find_exit_side(object *obj)
 935 {
 936         int i;
 937         vms_vector prefvec,segcenter,sidevec;
 938         fix best_val=-f2_0;
 939         int best_side;
 940         segment *pseg = &Segments[obj->segnum];
 941
 942         //find exit side
 943
 944         vm_vec_normalized_dir_quick(&prefvec,&obj->pos,&obj->last_pos);
 945
 946         compute_segment_center(&segcenter,pseg);
 947
 948         best_side=-1;
 949         for (i=MAX_SIDES_PER_SEGMENT;--i >= 0;) {
 950                 fix d;
 951
 952                 if (pseg->children[i]!=-1) {
 953
 954                         compute_center_point_on_side(&sidevec,pseg,i);
 955                         vm_vec_normalized_dir_quick(&sidevec,&sidevec,&segcenter);
 956                         d = vm_vec_dotprod(&sidevec,&prefvec);
 957
 958                         if (labs(d) < MIN_D) d=0;
 959
 960                         if (d > best_val) {best_val=d; best_side=i;}
 961
 962                 }
 963         }
 964
 965         Assert(best_side!=-1);
 966
 967         return best_side;
 968 }
 969
 970 extern fix Render_zoom;                                                 //the player's zoom factor
 971
 972 extern vms_vector Viewer_eye;   //valid during render
 973
 974 void draw_exit_model()
 975 {
 976         vms_vector model_pos;
 977         int f=15,u=0;   //21;
 978
 979         vm_vec_scale_add(&model_pos,&mine_exit_point,&mine_exit_orient.fvec,i2f(f));
 980         vm_vec_scale_add2(&model_pos,&mine_exit_orient.uvec,i2f(u));
 981
 982         draw_polygon_model(&model_pos,&mine_exit_orient,NULL,(mine_destroyed)?destroyed_exit_modelnum:exit_modelnum,0,f1_0,NULL,NULL);
 983
 984 }
 985
 986 int exit_point_bmx,exit_point_bmy;
 987
 988 fix satellite_size = i2f(400);
 989
 990 #define SATELLITE_DIST          i2f(1024)
 991 #define SATELLITE_WIDTH         satellite_size
 992 #define SATELLITE_HEIGHT        ((satellite_size*9)/4)          //((satellite_size*5)/2)
 993
 994 void render_external_scene(fix eye_offset)
 995 {
 996
 997         Viewer_eye = Viewer->pos;
 998
 999         if (eye_offset)
1000                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1001
1002         g3_set_view_matrix(&Viewer->pos,&Viewer->orient,Render_zoom);
1003
1004         //g3_draw_horizon(BM_XRGB(0,0,0),BM_XRGB(16,16,16));            //,-1);
1005         gr_clear_canvas(BM_XRGB(0,0,0));
1006
1007         g3_start_instance_matrix(&vmd_zero_vector,&surface_orient);
1008         draw_stars();
1009         g3_done_instance();
1010
1011         {       //draw satellite
1012
1013                 vms_vector delta;
1014                 g3s_point p,top_pnt;
1015
1016                 g3_rotate_point(&p,&satellite_pos);
1017                 g3_rotate_delta_vec(&delta,&satellite_upvec);
1018
1019                 g3_add_delta_vec(&top_pnt,&p,&delta);
1020
1021                 if (! (p.p3_codes & CC_BEHIND)) {
1022                         int save_im = Interpolation_method;
1023                         //p.p3_flags &= ~PF_PROJECTED;
1024                         //g3_project_point(&p);
1025                         if (! (p.p3_flags & PF_OVERFLOW)) {
1026                                 Interpolation_method = 0;
1027                                 //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1028                                 g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1029                                 Interpolation_method = save_im;
1030                         }
1031                 }
1032         }
1033
1034         #ifdef STATION_ENABLED
1035         draw_polygon_model(&station_pos,&vmd_identity_matrix,NULL,station_modelnum,0,f1_0,NULL,NULL);
1036         #endif
1037
1038         render_terrain(&mine_ground_exit_point,exit_point_bmx,exit_point_bmy);
1039
1040         draw_exit_model();
1041         if (ext_expl_playing)
1042                 draw_fireball(&external_explosion);
1043
1044         Lighting_on=0;
1045         render_object(ConsoleObject);
1046         Lighting_on=1;
1047 }
1048
1049 #define MAX_STARS 500
1050
1051 vms_vector stars[MAX_STARS];
1052
1053 void generate_starfield()
1054 {
1055         int i;
1056
1057         for (i=0;i<MAX_STARS;i++) {
1058
1059                 stars[i].x = (d_rand() - RAND_MAX/2) << 14;
1060                 stars[i].z = (d_rand() - RAND_MAX/2) << 14;
1061                 stars[i].y = (d_rand()/2) << 14;
1062
1063         }
1064 }
1065
1066 void draw_stars()
1067 {
1068         int i;
1069         int intensity=31;
1070         g3s_point p;
1071
1072         for (i=0;i<MAX_STARS;i++) {
1073
1074                 if ((i&63) == 0) {
1075                         gr_setcolor(BM_XRGB(intensity,intensity,intensity));
1076                         intensity-=3;
1077                 }
1078
1079                 //g3_rotate_point(&p,&stars[i]);
1080                 g3_rotate_delta_vec(&p.p3_vec,&stars[i]);
1081                 g3_code_point(&p);
1082
1083                 if (p.p3_codes == 0) {
1084
1085                         p.p3_flags &= ~PF_PROJECTED;
1086
1087                         g3_project_point(&p);
1088
1089                         gr_pixel(f2i(p.p3_sx),f2i(p.p3_sy));
1090                 }
1091         }
1092
1093 //@@    {
1094 //@@            vms_vector delta;
1095 //@@            g3s_point top_pnt;
1096 //@@
1097 //@@            g3_rotate_point(&p,&satellite_pos);
1098 //@@            g3_rotate_delta_vec(&delta,&satellite_upvec);
1099 //@@
1100 //@@            g3_add_delta_vec(&top_pnt,&p,&delta);
1101 //@@
1102 //@@            if (! (p.p3_codes & CC_BEHIND)) {
1103 //@@                    int save_im = Interpolation_method;
1104 //@@                    Interpolation_method = 0;
1105 //@@                    //p.p3_flags &= ~PF_PROJECTED;
1106 //@@                    g3_project_point(&p);
1107 //@@                    if (! (p.p3_flags & PF_OVERFLOW))
1108 //@@                            //gr_bitmapm(f2i(p.p3_sx)-32,f2i(p.p3_sy)-32,satellite_bitmap);
1109 //@@                            g3_draw_rod_tmap(satellite_bitmap,&p,SATELLITE_WIDTH,&top_pnt,SATELLITE_WIDTH,f1_0);
1110 //@@                    Interpolation_method = save_im;
1111 //@@            }
1112 //@@    }
1113
1114 }
1115
1116 void endlevel_render_mine(fix eye_offset)
1117 {
1118         int start_seg_num;
1119
1120         Viewer_eye = Viewer->pos;
1121
1122         if (Viewer->type == OBJ_PLAYER )
1123                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.fvec,(Viewer->size*3)/4);
1124
1125         if (eye_offset)
1126                 vm_vec_scale_add2(&Viewer_eye,&Viewer->orient.rvec,eye_offset);
1127
1128         #ifdef EDITOR
1129         if (Function_mode==FMODE_EDITOR)
1130                 Viewer_eye = Viewer->pos;
1131         #endif
1132
1133         if (Endlevel_sequence >= EL_OUTSIDE) {
1134
1135                 start_seg_num = exit_segnum;
1136         }
1137         else {
1138                 start_seg_num = find_point_seg(&Viewer_eye,Viewer->segnum);
1139
1140                 if (start_seg_num==-1)
1141                         start_seg_num = Viewer->segnum;
1142         }
1143
1144         if (Endlevel_sequence == EL_LOOKBACK) {
1145                 vms_matrix headm,viewm;
1146                 vms_angvec angles = {0,0,0x7fff};
1147
1148                 vm_angles_2_matrix(&headm,&angles);
1149                 vm_matrix_x_matrix(&viewm,&Viewer->orient,&headm);
1150                 g3_set_view_matrix(&Viewer_eye,&viewm,Render_zoom);
1151         }
1152         else
1153                 g3_set_view_matrix(&Viewer_eye,&Viewer->orient,Render_zoom);
1154
1155         render_mine(start_seg_num,eye_offset, 0);
1156 }
1157
1158 void render_endlevel_frame(fix eye_offset)
1159 {
1160
1161         g3_start_frame();
1162
1163         if (Endlevel_sequence < EL_OUTSIDE)
1164                 endlevel_render_mine(eye_offset);
1165         else
1166                 render_external_scene(eye_offset);
1167
1168         g3_end_frame();
1169
1170 }
1171
1172
1173 ///////////////////////// copy of flythrough code for endlevel
1174
1175
1176 #define MAX_FLY_OBJECTS 2
1177
1178 flythrough_data fly_objects[MAX_FLY_OBJECTS];
1179
1180 flythrough_data *flydata;
1181
1182 int matt_find_connect_side(int seg0,int seg1);
1183
1184 void compute_segment_center(vms_vector *vp,segment *sp);
1185
1186 fixang delta_ang(fixang a,fixang b);
1187 fixang interp_angle(fixang dest,fixang src,fixang step);
1188
1189 #define DEFAULT_SPEED i2f(16)
1190
1191 #define MIN_D 0x100
1192
1193 //if speed is zero, use default speed
1194 void start_endlevel_flythrough(int n,object *obj,fix speed)
1195 {
1196         flydata = &fly_objects[n];
1197
1198         flydata->obj = obj;
1199
1200         flydata->first_time = 1;
1201
1202         flydata->speed = speed?speed:DEFAULT_SPEED;
1203
1204         flydata->offset_frac = 0;
1205 }
1206
1207 static vms_angvec *angvec_add2_scale(vms_angvec *dest,vms_vector *src,fix s)
1208 {
1209         dest->p += fixmul(src->x,s);
1210         dest->b  += fixmul(src->z,s);
1211         dest->h  += fixmul(src->y,s);
1212
1213         return dest;
1214 }
1215
1216 #define MAX_ANGSTEP     0x4000          //max turn per second
1217
1218 #define MAX_SLIDE_PER_SEGMENT 0x10000
1219
1220 void do_endlevel_flythrough(int n)
1221 {
1222         object *obj;
1223         segment *pseg;
1224         int old_player_seg;
1225
1226         flydata = &fly_objects[n];
1227         obj = flydata->obj;
1228
1229         old_player_seg = obj->segnum;
1230
1231         //move the player for this frame
1232
1233         if (!flydata->first_time) {
1234
1235                 vm_vec_scale_add2(&obj->pos,&flydata->step,FrameTime);
1236                 angvec_add2_scale(&flydata->angles,&flydata->angstep,FrameTime);
1237
1238                 vm_angles_2_matrix(&obj->orient,&flydata->angles);
1239         }
1240
1241         //check new player seg
1242
1243         update_object_seg(obj);
1244         pseg = &Segments[obj->segnum];
1245
1246         if (flydata->first_time || obj->segnum != old_player_seg) {             //moved into new seg
1247                 vms_vector curcenter,nextcenter;
1248                 fix step_size,seg_time;
1249                 short entry_side,exit_side = -1;//what sides we entry and leave through
1250                 vms_vector dest_point;          //where we are heading (center of exit_side)
1251                 vms_angvec dest_angles;         //where we want to be pointing
1252                 vms_matrix dest_orient;
1253                 int up_side=0;
1254
1255                 entry_side=0;
1256
1257                 //find new exit side
1258
1259                 if (!flydata->first_time) {
1260
1261                         entry_side = matt_find_connect_side(obj->segnum,old_player_seg);
1262                         exit_side = Side_opposite[entry_side];
1263                 }
1264
1265                 if (flydata->first_time || entry_side==-1 || pseg->children[exit_side]==-1)
1266                         exit_side = find_exit_side(obj);
1267
1268                 {                                                                               //find closest side to align to
1269                         fix d,largest_d=-f1_0;
1270                         int i;
1271
1272                         for (i=0;i<6;i++) {
1273                                 #ifdef COMPACT_SEGS
1274                                 vms_vector v1;
1275                                 get_side_normal(pseg, i, 0, &v1 );
1276                                 d = vm_vec_dot(&v1,&flydata->obj->orient.uvec);
1277                                 #else
1278                                 d = vm_vec_dot(&pseg->sides[i].normals[0],&flydata->obj->orient.uvec);
1279                                 #endif
1280                                 if (d > largest_d) {largest_d = d; up_side=i;}
1281                         }
1282
1283                 }
1284
1285                 //update target point & angles
1286
1287                 compute_center_point_on_side(&dest_point,pseg,exit_side);
1288
1289                 //update target point and movement points
1290
1291                 //offset object sideways
1292                 if (flydata->offset_frac) {
1293                         int s0=-1,s1=0,i;
1294                         vms_vector s0p,s1p;
1295                         fix dist;
1296
1297                         for (i=0;i<6;i++)
1298                                 if (i!=entry_side && i!=exit_side && i!=up_side && i!=Side_opposite[up_side])
1299                                  {
1300                                         if (s0==-1)
1301                                                 s0 = i;
1302                                         else
1303                                                 s1 = i;
1304                                  }
1305
1306                         compute_center_point_on_side(&s0p,pseg,s0);
1307                         compute_center_point_on_side(&s1p,pseg,s1);
1308                         dist = fixmul(vm_vec_dist(&s0p,&s1p),flydata->offset_frac);
1309
1310                         if (dist-flydata->offset_dist > MAX_SLIDE_PER_SEGMENT)
1311                                 dist = flydata->offset_dist + MAX_SLIDE_PER_SEGMENT;
1312
1313                         flydata->offset_dist = dist;
1314
1315                         vm_vec_scale_add2(&dest_point,&obj->orient.rvec,dist);
1316
1317                 }
1318
1319                 vm_vec_sub(&flydata->step,&dest_point,&obj->pos);
1320                 step_size = vm_vec_normalize_quick(&flydata->step);
1321                 vm_vec_scale(&flydata->step,flydata->speed);
1322
1323                 compute_segment_center(&curcenter,pseg);
1324                 compute_segment_center(&nextcenter,&Segments[pseg->children[exit_side]]);
1325                 vm_vec_sub(&flydata->headvec,&nextcenter,&curcenter);
1326
1327                 #ifdef COMPACT_SEGS
1328                 {
1329                         vms_vector _v1;
1330                         get_side_normal(pseg, up_side, 0, &_v1 );
1331                         vm_vector_2_matrix(&dest_orient,&flydata->headvec,&_v1,NULL);
1332                 }
1333                 #else
1334                 vm_vector_2_matrix(&dest_orient,&flydata->headvec,&pseg->sides[up_side].normals[0],NULL);
1335                 #endif
1336                 vm_extract_angles_matrix(&dest_angles,&dest_orient);
1337
1338                 if (flydata->first_time)
1339                         vm_extract_angles_matrix(&flydata->angles,&obj->orient);
1340
1341                 seg_time = fixdiv(step_size,flydata->speed);    //how long through seg
1342
1343                 if (seg_time) {
1344                         flydata->angstep.x = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.p,dest_angles.p),seg_time)));
1345                         flydata->angstep.z = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.b,dest_angles.b),seg_time)));
1346                         flydata->angstep.y = max(-MAX_ANGSTEP,min(MAX_ANGSTEP,fixdiv(delta_ang(flydata->angles.h,dest_angles.h),seg_time)));
1347
1348                 }
1349                 else {
1350                         flydata->angles = dest_angles;
1351                         flydata->angstep.x = flydata->angstep.y = flydata->angstep.z = 0;
1352                 }
1353         }
1354
1355         flydata->first_time=0;
1356 }
1357
1358 #define JOY_NULL 15
1359 #define ROT_SPEED 8             //rate of rotation while key held down
1360 #define VEL_SPEED (15)  //rate of acceleration while key held down
1361
1362 extern short old_joy_x,old_joy_y;       //position last time around
1363
1364 #include "key.h"
1365 #include "joy.h"
1366
1367 #ifdef SLEW_ON          //this is a special routine for slewing around external scene
1368 int _do_slew_movement(object *obj, int check_keys, int check_joy )
1369 {
1370         int moved = 0;
1371         vms_vector svel, movement;                              //scaled velocity (per this frame)
1372         vms_matrix rotmat,new_pm;
1373         int joy_x,joy_y,btns;
1374         int joyx_moved,joyy_moved;
1375         vms_angvec rotang;
1376
1377         if (keyd_pressed[KEY_PAD5])
1378                 vm_vec_zero(&obj->phys_info.velocity);
1379
1380         if (check_keys) {
1381                 obj->phys_info.velocity.x += VEL_SPEED * (key_down_time(KEY_PAD9) - key_down_time(KEY_PAD7));
1382                 obj->phys_info.velocity.y += VEL_SPEED * (key_down_time(KEY_PADMINUS) - key_down_time(KEY_PADPLUS));
1383                 obj->phys_info.velocity.z += VEL_SPEED * (key_down_time(KEY_PAD8) - key_down_time(KEY_PAD2));
1384
1385                 rotang.pitch =  (key_down_time(KEY_LBRACKET) - key_down_time(KEY_RBRACKET))/ROT_SPEED;
1386                 rotang.bank  = (key_down_time(KEY_PAD1) - key_down_time(KEY_PAD3))/ROT_SPEED;
1387                 rotang.head  = (key_down_time(KEY_PAD6) - key_down_time(KEY_PAD4))/ROT_SPEED;
1388         }
1389         else
1390                 rotang.pitch = rotang.bank  = rotang.head  = 0;
1391
1392         //check for joystick movement
1393
1394         if (check_joy && joy_present)   {
1395                 joy_get_pos(&joy_x,&joy_y);
1396                 btns=joy_get_btns();
1397
1398                 joyx_moved = (abs(joy_x - old_joy_x)>JOY_NULL);
1399                 joyy_moved = (abs(joy_y - old_joy_y)>JOY_NULL);
1400
1401                 if (abs(joy_x) < JOY_NULL) joy_x = 0;
1402                 if (abs(joy_y) < JOY_NULL) joy_y = 0;
1403
1404                 if (btns)
1405                         if (!rotang.pitch) rotang.pitch = fixmul(-joy_y * 512,FrameTime); else;
1406                 else
1407                         if (joyy_moved) obj->phys_info.velocity.z = -joy_y * 8192;
1408
1409                 if (!rotang.head) rotang.head = fixmul(joy_x * 512,FrameTime);
1410
1411                 if (joyx_moved) old_joy_x = joy_x;
1412                 if (joyy_moved) old_joy_y = joy_y;
1413         }
1414
1415         moved = rotang.pitch | rotang.bank | rotang.head;
1416
1417         vm_angles_2_matrix(&rotmat,&rotang);
1418         vm_matrix_x_matrix(&new_pm,&obj->orient,&rotmat);
1419         obj->orient = new_pm;
1420         vm_transpose_matrix(&new_pm);           //make those columns rows
1421
1422         moved |= obj->phys_info.velocity.x | obj->phys_info.velocity.y | obj->phys_info.velocity.z;
1423
1424         svel = obj->phys_info.velocity;
1425         vm_vec_scale(&svel,FrameTime);          //movement in this frame
1426         vm_vec_rotate(&movement,&svel,&new_pm);
1427
1428         vm_vec_add2(&obj->pos,&movement);
1429
1430         moved |= (movement.x || movement.y || movement.z);
1431
1432         return moved;
1433 }
1434 #endif
1435
1436 #define LINE_LEN        80
1437 #define NUM_VARS        8
1438
1439 #define STATION_DIST    i2f(1024)
1440
1441 int convert_ext( char *dest, char *ext )
1442 {
1443         char *t;
1444
1445         t = strchr(dest,'.');
1446
1447         if (t && (t-dest <= 8)) {
1448                 t[1] = ext[0];
1449                 t[2] = ext[1];
1450                 t[3] = ext[2];
1451                 return 1;
1452         }
1453         else
1454                 return 0;
1455 }
1456
1457 //called for each level to load & setup the exit sequence
1458 void load_endlevel_data(int level_num)
1459 {
1460         char filename[13];
1461         char line[LINE_LEN],*p;
1462         CFILE *ifile;
1463         int var,segnum,sidenum;
1464         int exit_side=0, i;
1465         int have_binary = 0;
1466
1467         endlevel_data_loaded = 0;               //not loaded yet
1468
1469 try_again:
1470         ;
1471
1472         if (level_num<0)                //secret level
1473                 strcpy(filename,Secret_level_names[-level_num-1]);
1474         else                                    //normal level
1475                 strcpy(filename,Level_names[level_num-1]);
1476
1477         if (!convert_ext(filename,"END"))
1478                 Error("Error converting filename <%s> for endlevel data\n",filename);
1479
1480         ifile = cfopen(filename,"rb");
1481
1482         if (!ifile) {
1483
1484                 convert_ext(filename,"txb");
1485
1486                 ifile = cfopen(filename,"rb");
1487
1488                 if (!ifile) {
1489                         if (level_num==1) {
1490                                 con_printf(CON_DEBUG, "Cannot load file text of binary version of <%s>\n",filename);
1491                                 return;
1492                         }
1493                         else {
1494                                 level_num = 1;
1495                                 goto try_again;
1496                         }
1497                 }
1498
1499                 have_binary = 1;
1500         }
1501
1502         //ok...this parser is pretty simple.  It ignores comments, but
1503         //everything else must be in the right place
1504
1505         var = 0;
1506
1507         while (cfgets(line,LINE_LEN,ifile)) {
1508
1509                 if (have_binary) {
1510                         for (i = 0; i < strlen(line) - 1; i++) {
1511                                 encode_rotate_left(&(line[i]));
1512                                 line[i] = line[i] ^ BITMAP_TBL_XOR;
1513                                 encode_rotate_left(&(line[i]));
1514                         }
1515                         p = line;
1516                 }
1517
1518                 if ((p=strchr(line,';'))!=NULL)
1519                         *p = 0;         //cut off comment
1520
1521                 for (p=line+strlen(line)-1;p>line && isspace(*p);*p--=0);
1522                 for (p=line;isspace(*p);p++);
1523
1524                 if (!*p)                //empty line
1525                         continue;
1526
1527                 switch (var) {
1528
1529                         case 0: {                                               //ground terrain
1530                                 int iff_error;
1531                                 ubyte pal[768];
1532
1533                                 if (terrain_bm_instance.bm_data)
1534                                         d_free(terrain_bm_instance.bm_data);
1535
1536                                 Assert(terrain_bm_instance.bm_data == NULL);
1537
1538                                 iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
1539                                 if (iff_error != IFF_NO_ERROR) {
1540                                         Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
1541                                 }
1542
1543                                 terrain_bitmap = &terrain_bm_instance;
1544
1545                                 gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
1546
1547                                 break;
1548                         }
1549
1550                         case 1:                                                 //height map
1551
1552                                 load_terrain(p);
1553                                 break;
1554
1555
1556                         case 2:
1557
1558                                 sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
1559                                 break;
1560
1561                         case 3:                                                 //exit heading
1562
1563                                 exit_angles.h = i2f(atoi(p))/360;
1564                                 break;
1565
1566                         case 4: {                                               //planet bitmap
1567                                 int iff_error;
1568                                 ubyte pal[768];
1569
1570                                 if (satellite_bm_instance.bm_data)
1571                                         d_free(satellite_bm_instance.bm_data);
1572
1573                                 iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
1574                                 if (iff_error != IFF_NO_ERROR) {
1575                                         mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
1576                                         Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
1577                                 }
1578
1579                                 satellite_bitmap = &satellite_bm_instance;
1580                                 gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
1581
1582                                 break;
1583                         }
1584
1585                         case 5:                                                 //earth pos
1586                         case 7: {                                               //station pos
1587                                 vms_matrix tm;
1588                                 vms_angvec ta;
1589                                 int pitch,head;
1590
1591                                 sscanf(p,"%d,%d",&head,&pitch);
1592
1593                                 ta.h = i2f(head)/360;
1594                                 ta.p = -i2f(pitch)/360;
1595                                 ta.b = 0;
1596
1597                                 vm_angles_2_matrix(&tm,&ta);
1598
1599                                 if (var==5)
1600                                         satellite_pos = tm.fvec;
1601                                         //vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
1602                                 else
1603                                         station_pos = tm.fvec;
1604
1605                                 break;
1606                         }
1607
1608                         case 6:                                         //planet size
1609                                 satellite_size = i2f(atoi(p));
1610                                 break;
1611                 }
1612
1613                 var++;
1614
1615         }
1616
1617         Assert(var == NUM_VARS);
1618
1619
1620         // OK, now the data is loaded.  Initialize everything
1621
1622         //find the exit sequence by searching all segments for a side with
1623         //children == -2
1624
1625         for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
1626                 for (sidenum=0;sidenum<6;sidenum++)
1627                         if (Segments[segnum].children[sidenum] == -2) {
1628                                 exit_segnum = segnum;
1629                                 exit_side = sidenum;
1630                                 break;
1631                         }
1632
1633         Assert(exit_segnum!=-1);
1634
1635         compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
1636         extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
1637         compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
1638
1639         vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
1640
1641         //compute orientation of surface
1642         {
1643                 vms_vector tv;
1644                 vms_matrix exit_orient,tm;
1645
1646                 vm_angles_2_matrix(&exit_orient,&exit_angles);
1647                 vm_transpose_matrix(&exit_orient);
1648                 vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
1649
1650                 vm_copy_transpose_matrix(&tm,&surface_orient);
1651                 vm_vec_rotate(&tv,&station_pos,&tm);
1652                 vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
1653
1654                 vm_vec_rotate(&tv,&satellite_pos,&tm);
1655                 vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
1656
1657                 vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
1658                 vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
1659
1660
1661         }
1662
1663         cfclose(ifile);
1664
1665         endlevel_data_loaded = 1;
1666
1667 }