main/cntrlcen.c

   1 /* $Id: cntrlcen.c,v 1.20 2005-08-02 06:13:56 chris Exp $ */
   2 /*
   3 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   4 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   5 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   6 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   7 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   8 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   9 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
  10 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  11 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  12 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  13 */
  14
  15 /*
  16  *
  17  * Code for the control center
  18  *
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #include <conf.h>
  23 #endif
  24
  25 #ifdef RCS
  26 static char rcsid[] = "$Id: cntrlcen.c,v 1.20 2005-08-02 06:13:56 chris Exp $";
  27 #endif
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #if !defined(_WIN32) && !defined(macintosh)
  32 #include <unistd.h>
  33 #endif
  34
  35 #include "pstypes.h"
  36 #include "error.h"
  37 #include "mono.h"
  38
  39 #include "inferno.h"
  40 #include "cntrlcen.h"
  41 #include "game.h"
  42 #include "laser.h"
  43 #include "gameseq.h"
  44 #include "ai.h"
  45 #ifdef NETWORK
  46 #include "multi.h"
  47 #endif
  48 #include "wall.h"
  49 #include "object.h"
  50 #include "robot.h"
  51 #include "vclip.h"
  52 #include "fireball.h"
  53 #include "endlevel.h"
  54
  55 //@@vms_vector controlcen_gun_points[MAX_CONTROLCEN_GUNS];
  56 //@@vms_vector controlcen_gun_dirs[MAX_CONTROLCEN_GUNS];
  57
  58 reactor Reactors[MAX_REACTORS];
  59 int Num_reactors=0;
  60
  61 control_center_triggers ControlCenterTriggers;
  62
  63 int     N_controlcen_guns;
  64 int     Control_center_been_hit;
  65 int     Control_center_player_been_seen;
  66 int     Control_center_next_fire_time;
  67 int     Control_center_present;
  68
  69 vms_vector      Gun_pos[MAX_CONTROLCEN_GUNS], Gun_dir[MAX_CONTROLCEN_GUNS];
  70
  71 void do_countdown_frame();
  72
  73 //      -----------------------------------------------------------------------------
  74 //return the position & orientation of a gun on the control center object
  75 void calc_controlcen_gun_point(vms_vector *gun_point,vms_vector *gun_dir,object *obj,int gun_num)
  76 {
  77         reactor *reactor;
  78         vms_matrix m;
  79
  80         Assert(obj->type == OBJ_CNTRLCEN);
  81         Assert(obj->render_type==RT_POLYOBJ);
  82
  83         reactor = &Reactors[obj->id];
  84
  85         Assert(gun_num < reactor->n_guns);
  86
  87         //instance gun position & orientation
  88
  89         vm_copy_transpose_matrix(&m,&obj->orient);
  90
  91         vm_vec_rotate(gun_point,&reactor->gun_points[gun_num],&m);
  92         vm_vec_add2(gun_point,&obj->pos);
  93         vm_vec_rotate(gun_dir,&reactor->gun_dirs[gun_num],&m);
  94 }
  95
  96 //      -----------------------------------------------------------------------------
  97 //      Look at control center guns, find best one to fire at *objp.
  98 //      Return best gun number (one whose direction dotted with vector to player is largest).
  99 //      If best gun has negative dot, return -1, meaning no gun is good.
 100 int calc_best_gun(int num_guns, vms_vector *gun_pos, vms_vector *gun_dir, vms_vector *objpos)
 101 {
 102         int     i;
 103         fix     best_dot;
 104         int     best_gun;
 105
 106         best_dot = -F1_0*2;
 107         best_gun = -1;
 108
 109         for (i=0; i<num_guns; i++) {
 110                 fix                     dot;
 111                 vms_vector      gun_vec;
 112
 113                 vm_vec_sub(&gun_vec, objpos, &gun_pos[i]);
 114                 vm_vec_normalize_quick(&gun_vec);
 115                 dot = vm_vec_dot(&gun_dir[i], &gun_vec);
 116
 117                 if (dot > best_dot) {
 118                         best_dot = dot;
 119                         best_gun = i;
 120                 }
 121         }
 122
 123         Assert(best_gun != -1);         // Contact Mike.  This is impossible.  Or maybe you're getting an unnormalized vector somewhere.
 124
 125         if (best_dot < 0)
 126                 return -1;
 127         else
 128                 return best_gun;
 129
 130 }
 131
 132 extern fix Player_time_of_death;                //      object.c
 133
 134 int     Dead_controlcen_object_num=-1;
 135
 136 //how long to blow up on insane
 137 int Base_control_center_explosion_time=DEFAULT_CONTROL_CENTER_EXPLOSION_TIME;
 138
 139 int Control_center_destroyed = 0;
 140 fix Countdown_timer=0;
 141 int Countdown_seconds_left=0, Total_countdown_time=0;           //in whole seconds
 142
 143 int     Alan_pavlish_reactor_times[NDL] = {90, 60, 45, 35, 30};
 144
 145 //      -----------------------------------------------------------------------------
 146 //      Called every frame.  If control center been destroyed, then actually do something.
 147 void do_controlcen_dead_frame(void)
 148 {
 149         if ((Dead_controlcen_object_num != -1) && (Countdown_seconds_left > 0))
 150                 if (d_rand() < FrameTime*4)
 151                         create_small_fireball_on_object(&Objects[Dead_controlcen_object_num], F1_0, 1);
 152
 153         if (Control_center_destroyed && !Endlevel_sequence)
 154                 do_countdown_frame();
 155 }
 156
 157 #define COUNTDOWN_VOICE_TIME fl2f(12.75)
 158
 159 void do_countdown_frame()
 160 {
 161         fix     old_time;
 162         int     fc, div_scale;
 163
 164         if (!Control_center_destroyed)  return;
 165
 166         if (!is_D2_OEM && !is_MAC_SHARE && !is_SHAREWARE)   // get countdown in OEM and SHAREWARE only
 167         {
 168                 // On last level, we don't want a countdown.
 169                 if (PLAYING_BUILTIN_MISSION && Current_level_num == Last_level)
 170                 {
 171                         if (!(Game_mode & GM_MULTI))
 172                                 return;
 173                         if (Game_mode & GM_MULTI_ROBOTS)
 174                                 return;
 175                 }
 176         }
 177
 178         //      Control center destroyed, rock the player's ship.
 179         fc = Countdown_seconds_left;
 180         if (fc > 16)
 181                 fc = 16;
 182
 183         //      At Trainee, decrease rocking of ship by 4x.
 184         div_scale = 1;
 185         if (Difficulty_level == 0)
 186                 div_scale = 4;
 187
 188         ConsoleObject->mtype.phys_info.rotvel.x += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 189         ConsoleObject->mtype.phys_info.rotvel.z += (fixmul(d_rand() - 16384, 3*F1_0/16 + (F1_0*(16-fc))/32))/div_scale;
 190         //      Hook in the rumble sound effect here.
 191
 192         old_time = Countdown_timer;
 193         Countdown_timer -= RealFrameTime;
 194         Countdown_seconds_left = f2i(Countdown_timer + F1_0*7/8);
 195
 196         if ( (old_time > COUNTDOWN_VOICE_TIME ) && (Countdown_timer <= COUNTDOWN_VOICE_TIME) )  {
 197                 digi_play_sample( SOUND_COUNTDOWN_13_SECS, F3_0 );
 198         }
 199         if ( f2i(old_time + F1_0*7/8) != Countdown_seconds_left )       {
 200                 if ( (Countdown_seconds_left>=0) && (Countdown_seconds_left<10) )
 201                         digi_play_sample( SOUND_COUNTDOWN_0_SECS+Countdown_seconds_left, F3_0 );
 202                 if ( Countdown_seconds_left==Total_countdown_time-1)
 203                         digi_play_sample( SOUND_COUNTDOWN_29_SECS, F3_0 );
 204         }
 205
 206         if (Countdown_timer > 0) {
 207                 fix size,old_size;
 208                 size = (i2f(Total_countdown_time)-Countdown_timer) / fl2f(0.65);
 209                 old_size = (i2f(Total_countdown_time)-old_time) / fl2f(0.65);
 210                 if (size != old_size && (Countdown_seconds_left < (Total_countdown_time-5) ))           {                       // Every 2 seconds!
 211                         //@@if (Dead_controlcen_object_num != -1) {
 212                         //@@    vms_vector vp;  //,v,c;
 213                         //@@    compute_segment_center(&vp, &Segments[Objects[Dead_controlcen_object_num].segnum]);
 214                         //@@    object_create_explosion( Objects[Dead_controlcen_object_num].segnum, &vp, size*10, VCLIP_SMALL_EXPLOSION);
 215                         //@@}
 216
 217                         digi_play_sample( SOUND_CONTROL_CENTER_WARNING_SIREN, F3_0 );
 218                 }
 219         }  else {
 220                 int flash_value;
 221
 222                 if (old_time > 0)
 223                         digi_play_sample( SOUND_MINE_BLEW_UP, F1_0 );
 224
 225                 flash_value = f2i(-Countdown_timer * (64 / 4)); // 4 seconds to total whiteness
 226                 PALETTE_FLASH_SET(flash_value,flash_value,flash_value);
 227
 228                 if (PaletteBlueAdd > 64 )       {
 229                         gr_set_current_canvas( NULL );
 230                         gr_clear_canvas(BM_XRGB(31,31,31));                             //make screen all white to match palette effect
 231                         reset_cockpit();                                                                //force cockpit redraw next time
 232                         reset_palette_add();                                                    //restore palette for death message
 233                         //controlcen->MaxCapacity = Fuelcen_max_amount;
 234                         //gauge_message( "Control Center Reset" );
 235                         DoPlayerDead();         //kill_player();
 236                 }
 237         }
 238 }
 239
 240 //      -----------------------------------------------------------------------------
 241 //      Called when control center gets destroyed.
 242 //      This code is common to whether control center is implicitly imbedded in a boss,
 243 //      or is an object of its own.
 244 //      if objp == NULL that means the boss was the control center and don't set Dead_controlcen_object_num
 245 void do_controlcen_destroyed_stuff(object *objp)
 246 {
 247         int     i;
 248
 249    if ((Game_mode & GM_MULTI_ROBOTS) && Control_center_destroyed)
 250     return; // Don't allow resetting if control center and boss on same level
 251
 252         // Must toggle walls whether it is a boss or control center.
 253         for (i=0;i<ControlCenterTriggers.num_links;i++)
 254                 wall_toggle(&Segments[ControlCenterTriggers.seg[i]], ControlCenterTriggers.side[i]);
 255
 256         // And start the countdown stuff.
 257         Control_center_destroyed = 1;
 258
 259         //      If a secret level, delete secret.sgc to indicate that we can't return to our secret level.
 260         if (Current_level_num < 0) {
 261                 int     rval;
 262                 #ifndef MACINTOSH
 263                 rval = !PHYSFS_delete("secret.sgc");
 264                 #else
 265                 rval = !PHYSFS_delete("Players/secret.sgc");
 266                 #endif
 267                 mprintf((0, "Deleting secret.sgc, return value = %i\n", rval));
 268         }
 269
 270         if (Base_control_center_explosion_time != DEFAULT_CONTROL_CENTER_EXPLOSION_TIME)
 271                 Total_countdown_time = Base_control_center_explosion_time + Base_control_center_explosion_time * (NDL-Difficulty_level-1)/2;
 272         else
 273                 Total_countdown_time = Alan_pavlish_reactor_times[Difficulty_level];
 274
 275         Countdown_timer = i2f(Total_countdown_time);
 276
 277         if (!Control_center_present || objp==NULL) {
 278                 //Assert(objp == NULL);
 279                 return;
 280         }
 281
 282         //Assert(objp != NULL);
 283
 284         Dead_controlcen_object_num = objp-Objects;
 285 }
 286
 287 int     Last_time_cc_vis_check = 0;
 288
 289 //      -----------------------------------------------------------------------------
 290 //do whatever this thing does in a frame
 291 void do_controlcen_frame(object *obj)
 292 {
 293         int                     best_gun_num;
 294
 295         //      If a boss level, then Control_center_present will be 0.
 296         if (!Control_center_present)
 297                 return;
 298
 299 #ifndef NDEBUG
 300         if (!Robot_firing_enabled || (Game_suspended & SUSP_ROBOTS))
 301                 return;
 302 #else
 303         if (!Robot_firing_enabled)
 304                 return;
 305 #endif
 306
 307         if (!(Control_center_been_hit || Control_center_player_been_seen)) {
 308                 if (!(FrameCount % 8)) {                //      Do every so often...
 309                         vms_vector      vec_to_player;
 310                         fix                     dist_to_player;
 311                         int                     i;
 312                         segment         *segp = &Segments[obj->segnum];
 313
 314                         // This is a hack.  Since the control center is not processed by
 315                         // ai_do_frame, it doesn't know to deal with cloaked dudes.  It
 316                         // seems to work in single-player mode because it is actually using
 317                         // the value of Believed_player_position that was set by the last
 318                         // person to go through ai_do_frame.  But since a no-robots game
 319                         // never goes through ai_do_frame, I'm making it so the control
 320                         // center can spot cloaked dudes.
 321
 322                         if (Game_mode & GM_MULTI)
 323                                 Believed_player_pos = Objects[Players[Player_num].objnum].pos;
 324
 325                         //      Hack for special control centers which are isolated and not reachable because the
 326                         //      real control center is inside the boss.
 327                         for (i=0; i<MAX_SIDES_PER_SEGMENT; i++)
 328                                 if (IS_CHILD(segp->children[i]))
 329                                         break;
 330                         if (i == MAX_SIDES_PER_SEGMENT)
 331                                 return;
 332
 333                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 334                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 335                         if (dist_to_player < F1_0*200) {
 336                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 337                                 Control_center_next_fire_time = 0;
 338                         }
 339                 }
 340
 341                 return;
 342         }
 343
 344         //      Periodically, make the reactor fall asleep if player not visible.
 345         if (Control_center_been_hit || Control_center_player_been_seen) {
 346                 if ((Last_time_cc_vis_check + F1_0*5 < GameTime) || (Last_time_cc_vis_check > GameTime)) {
 347                         vms_vector      vec_to_player;
 348                         fix                     dist_to_player;
 349
 350                         vm_vec_sub(&vec_to_player, &ConsoleObject->pos, &obj->pos);
 351                         dist_to_player = vm_vec_normalize_quick(&vec_to_player);
 352                         Last_time_cc_vis_check = GameTime;
 353                         if (dist_to_player < F1_0*120) {
 354                                 Control_center_player_been_seen = player_is_visible_from_object(obj, &obj->pos, 0, &vec_to_player);
 355                                 if (!Control_center_player_been_seen)
 356                                         Control_center_been_hit = 0;
 357                         }
 358                 }
 359
 360         }
 361
 362         if ((Control_center_next_fire_time < 0) && !(Player_is_dead && (GameTime > Player_time_of_death+F1_0*2))) {
 363                 if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED)
 364                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &Believed_player_pos);
 365                 else
 366                         best_gun_num = calc_best_gun(N_controlcen_guns, Gun_pos, Gun_dir, &ConsoleObject->pos);
 367
 368                 if (best_gun_num != -1) {
 369                         int                     rand_prob, count;
 370                         vms_vector      vec_to_goal;
 371                         fix                     dist_to_player;
 372                         fix                     delta_fire_time;
 373
 374                         if (Players[Player_num].flags & PLAYER_FLAGS_CLOAKED) {
 375                                 vm_vec_sub(&vec_to_goal, &Believed_player_pos, &Gun_pos[best_gun_num]);
 376                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 377                         } else {
 378                                 vm_vec_sub(&vec_to_goal, &ConsoleObject->pos, &Gun_pos[best_gun_num]);
 379                                 dist_to_player = vm_vec_normalize_quick(&vec_to_goal);
 380                         }
 381
 382                         if (dist_to_player > F1_0*300)
 383                         {
 384                                 Control_center_been_hit = 0;
 385                                 Control_center_player_been_seen = 0;
 386                                 return;
 387                         }
 388
 389                         #ifdef NETWORK
 390                         if (Game_mode & GM_MULTI)
 391                                 multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 392                         #endif
 393                         Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 1);
 394
 395                         //      some of time, based on level, fire another thing, not directly at player, so it might hit him if he's constantly moving.
 396                         rand_prob = F1_0/(abs(Current_level_num)/4+2);
 397                         count = 0;
 398                         while ((d_rand() > rand_prob) && (count < 4)) {
 399                                 vms_vector      randvec;
 400
 401                                 make_random_vector(&randvec);
 402                                 vm_vec_scale_add2(&vec_to_goal, &randvec, F1_0/6);
 403                                 vm_vec_normalize_quick(&vec_to_goal);
 404                                 #ifdef NETWORK
 405                                 if (Game_mode & GM_MULTI)
 406                                         multi_send_controlcen_fire(&vec_to_goal, best_gun_num, obj-Objects);
 407                                 #endif
 408                                 Laser_create_new_easy( &vec_to_goal, &Gun_pos[best_gun_num], obj-Objects, CONTROLCEN_WEAPON_NUM, 0);
 409                                 count++;
 410                         }
 411
 412                         delta_fire_time = (NDL - Difficulty_level) * F1_0/4;
 413                         if (Difficulty_level == 0)
 414                                 delta_fire_time += F1_0/2;
 415
 416                         if (Game_mode & GM_MULTI) // slow down rate of fire in multi player
 417                                 delta_fire_time *= 2;
 418
 419                         Control_center_next_fire_time = delta_fire_time;
 420
 421                 }
 422         } else
 423                 Control_center_next_fire_time -= FrameTime;
 424
 425 }
 426
 427 int Reactor_strength=-1;                //-1 mean not set by designer
 428
 429 //      -----------------------------------------------------------------------------
 430 //      This must be called at the start of each level.
 431 //      If this level contains a boss and mode != multiplayer, don't do control center stuff.  (Ghost out control center object.)
 432 //      If this level contains a boss and mode == multiplayer, do control center stuff.
 433 void init_controlcen_for_level(void)
 434 {
 435         int             i;
 436         object  *objp;
 437         int             cntrlcen_objnum=-1, boss_objnum=-1;
 438
 439         for (i=0; i<=Highest_object_index; i++) {
 440                 objp = &Objects[i];
 441                 if (objp->type == OBJ_CNTRLCEN)
 442                 {
 443                         if (cntrlcen_objnum != -1)
 444                                 mprintf((1, "Warning: Two or more control centers including %i and %i\n", i, cntrlcen_objnum));
 445                         else
 446                                 cntrlcen_objnum = i;
 447                 }
 448
 449                 if ((objp->type == OBJ_ROBOT) && (Robot_info[objp->id].boss_flag)) {
 450 //                      mprintf((0, "Found boss robot %d.\n", objp->id));
 451                         if (boss_objnum != -1)
 452                                 mprintf((1, "Warning: Two or more bosses including %i and %i\n", i, boss_objnum));
 453                         else
 454                                 boss_objnum = i;
 455                 }
 456         }
 457
 458 #ifndef NDEBUG
 459         if (cntrlcen_objnum == -1) {
 460                 mprintf((1, "Warning: No control center.\n"));
 461                 return;
 462         }
 463 #endif
 464
 465         if ( (boss_objnum != -1) && !((Game_mode & GM_MULTI) && !(Game_mode & GM_MULTI_ROBOTS)) ) {
 466                 if (cntrlcen_objnum != -1) {
 467 //                      mprintf((0, "Ghosting control center\n"));
 468                         Objects[cntrlcen_objnum].type = OBJ_GHOST;
 469                         Objects[cntrlcen_objnum].render_type = RT_NONE;
 470                         Control_center_present = 0;
 471                 }
 472         } else {
 473                 //      Compute all gun positions.
 474                 objp = &Objects[cntrlcen_objnum];
 475                 N_controlcen_guns = Reactors[objp->id].n_guns;
 476                 for (i=0; i<N_controlcen_guns; i++)
 477                         calc_controlcen_gun_point(&Gun_pos[i], &Gun_dir[i], objp, i);
 478                 Control_center_present = 1;
 479
 480                 if (Reactor_strength == -1) {           //use old defaults
 481                         //      Boost control center strength at higher levels.
 482                         if (Current_level_num >= 0)
 483                                 objp->shields = F1_0*200 + (F1_0*200/4) * Current_level_num;
 484                         else
 485                                 objp->shields = F1_0*200 - Current_level_num*F1_0*150;
 486                 }
 487                 else {
 488                         objp->shields = i2f(Reactor_strength);
 489                 }
 490
 491         }
 492
 493         //      Say the control center has not yet been hit.
 494         Control_center_been_hit = 0;
 495         Control_center_player_been_seen = 0;
 496         Control_center_next_fire_time = 0;
 497
 498         Dead_controlcen_object_num = -1;
 499 }
 500
 501 void special_reactor_stuff(void)
 502 {
 503         mprintf((0, "Mucking with reactor countdown time.\n"));
 504         if (Control_center_destroyed) {
 505                 Countdown_timer += i2f(Base_control_center_explosion_time + (NDL-1-Difficulty_level)*Base_control_center_explosion_time/(NDL-1));
 506                 Total_countdown_time = f2i(Countdown_timer)+2;  //      Will prevent "Self destruct sequence activated" message from replaying.
 507         }
 508 }
 509
 510 #ifndef FAST_FILE_IO
 511 /*
 512  * reads n reactor structs from a CFILE
 513  */
 514 extern int reactor_read_n(reactor *r, int n, CFILE *fp)
 515 {
 516         int i, j;
 517
 518         for (i = 0; i < n; i++) {
 519                 r[i].model_num = cfile_read_int(fp);
 520                 r[i].n_guns = cfile_read_int(fp);
 521                 for (j = 0; j < MAX_CONTROLCEN_GUNS; j++)
 522                         cfile_read_vector(&(r[i].gun_points[j]), fp);
 523                 for (j = 0; j < MAX_CONTROLCEN_GUNS; j++)
 524                         cfile_read_vector(&(r[i].gun_dirs[j]), fp);
 525         }
 526         return i;
 527 }
 528
 529 /*
 530  * reads a control_center_triggers structure from a CFILE
 531  */
 532 extern int control_center_triggers_read_n(control_center_triggers *cct, int n, CFILE *fp)
 533 {
 534         int i, j;
 535
 536         for (i = 0; i < n; i++)
 537         {
 538                 cct->num_links = cfile_read_short(fp);
 539                 for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 540                         cct->seg[j] = cfile_read_short(fp);
 541                 for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 542                         cct->side[j] = cfile_read_short(fp);
 543         }
 544         return i;
 545 }
 546 #endif
 547
 548 int control_center_triggers_write(control_center_triggers *cct, PHYSFS_file *fp)
 549 {
 550         int j;
 551
 552         PHYSFS_writeSLE16(fp, cct->num_links);
 553         for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 554                 PHYSFS_writeSLE16(fp, cct->seg[j]);
 555         for (j = 0; j < MAX_CONTROLCEN_LINKS; j++)
 556                 PHYSFS_writeSLE16(fp, cct->side[j]);
 557
 558         return 1;
 559 }