src/hud/hudshield.cpp

   1 /*
   2  * $Logfile: /Freespace2/code/Hud/HUDshield.cpp $
   3  * $Revision$
   4  * $Date$
   5  * $Author$
   6  *
   7  * C file for the display and management of the HUD shield
   8  *
   9  * $Log$
  10  * Revision 1.1  2002/05/03 03:28:09  root
  11  * Initial revision
  12  *
  13  *
  14  * 12    8/27/99 10:36a Dave
  15  * Impose a 2% penalty for hitting the shield balance key.
  16  *
  17  * 11    8/23/99 11:34a Dave
  18  * Fixed shield intensity rendering problems.
  19  *
  20  * 10    8/01/99 12:39p Dave
  21  * Added HUD contrast control key (for nebula).
  22  *
  23  * 9     7/22/99 4:00p Dave
  24  * Fixed beam weapon muzzle glow rendering. Externalized hud shield info.
  25  *
  26  * 8     6/10/99 3:43p Dave
  27  * Do a better job of syncing text colors to HUD gauges.
  28  *
  29  * 7     1/07/99 9:06a Jasen
  30  * coords...
  31  *
  32  * 6     12/30/98 8:57a Jasen
  33  * updated coords for hi res
  34  *
  35  * 5     12/28/98 3:17p Dave
  36  * Support for multiple hud bitmap filenames for hi-res mode.
  37  *
  38  * 4     12/21/98 5:02p Dave
  39  * Modified all hud elements to be multi-resolution friendly.
  40  *
  41  * 3     12/14/98 1:15p Jasen
  42  * added new HUD shield gauges
  43  *
  44  * 2     10/07/98 10:53a Dave
  45  * Initial checkin.
  46  *
  47  * 1     10/07/98 10:49a Dave
  48  *
  49  * 35    9/19/98 3:11p Adam
  50  * Added new hardcoded values for Hud_shield_filenames
  51  *
  52  * 34    8/25/98 1:48p Dave
  53  * First rev of EMP effect. Player side stuff basically done. Next comes
  54  * AI code.
  55  *
  56  * 33    5/17/98 3:32p Lawrance
  57  * Make shield gauge more readable when flashing
  58  *
  59  * 32    4/25/98 5:39p Dave
  60  * Removed an unneeded assert.
  61  *
  62  * 31    4/25/98 3:56p Mike
  63  * Make player's shield icon flash when Fred tells it to.
  64  *
  65  * 30    4/25/98 2:00p Dave
  66  * Installed a bunch of multiplayer context help screens. Reworked ingame
  67  * join ship select screen. Fix places where network timestamps get hosed.
  68  *
  69  * 29    4/21/98 12:19a Allender
  70  * only play equalize shield sound if player equalizes shields
  71  *
  72  * 28    3/26/98 5:26p John
  73  * added new paging code. nonfunctional.
  74  *
  75  * 27    3/21/98 3:35p Lawrance
  76  * Tweak position of numeric integrity for target
  77  *
  78  * 26    3/14/98 4:59p Lawrance
  79  * Flash shield/ship icons when ships are hit
  80  *
  81  * 25    3/02/98 5:42p John
  82  * Removed WinAVI stuff from Freespace.  Made all HUD gauges wriggle from
  83  * afterburner.  Made gr_set_clip work good with negative x &y.  Made
  84  * model_caching be on by default.  Made each cached model have it's own
  85  * bitmap id.  Made asteroids not rotate when model_caching is on.
  86  *
  87  * 24    2/22/98 12:19p John
  88  * Externalized some strings
  89  *
  90  * 23    2/12/98 4:58p Lawrance
  91  * Change to new flashing method.
  92  *
  93  * 22    1/12/98 11:16p Lawrance
  94  * Wonderful HUD config.
  95  *
  96  * 21    1/08/98 4:36p Lawrance
  97  * Fix bug in shield drawing code.
  98  *
  99  * 20    1/05/98 9:38p Lawrance
 100  * Implement flashing HUD gauges.
 101  *
 102  * 19    1/02/98 9:10p Lawrance
 103  * Big changes to how colors get set on the HUD.
 104  *
 105  * 18    12/29/97 9:48p Mike
 106  * Prevent indexing before array start when quadrant_num = -1.
 107  *
 108  * 17    12/01/97 12:27a Lawrance
 109  * redo default alpha color for HUD, make it easy to modify in the future
 110  *
 111  * 16    11/18/97 5:58p Lawrance
 112  * flash escort view info when that ship is taking hits
 113  *
 114  * 15    11/18/97 1:21p Mitri
 115  * ALAN: be sure to only draw shield icons for targets that are ships
 116  *
 117  * 14    11/17/97 6:37p Lawrance
 118  * new gauges: extended target view, new lock triangles, support ship view
 119  *
 120  * 13    11/13/97 10:46p Lawrance
 121  * implemented new escort view, damage view and weapons
 122  *
 123  * 12    11/12/97 9:42a Lawrance
 124  * show player ship integrity above shield icon
 125  *
 126  * 11    11/11/97 5:06p Lawrance
 127  * fix bug with flashing frequency of hull
 128  *
 129  * 10    11/09/97 11:27p Lawrance
 130  * move target shield icon closer to center
 131  *
 132  * 9     11/09/97 4:39p Lawrance
 133  * don't draw mini ship icon anymore
 134  *
 135  * 8     11/08/97 11:08p Lawrance
 136  * implement new "mini-shield" view that sits near bottom of reticle
 137  *
 138  * 7     11/05/97 11:21p Lawrance
 139  * implement dynamic alpha on the shields
 140  *
 141  * 6     11/04/97 8:34p Lawrance
 142  * fix warning: remove unused variable
 143  *
 144  * 5     11/04/97 7:49p Lawrance
 145  * integrating new HUD reticle and shield icons
 146  *
 147  * 4     10/24/97 5:51p Lawrance
 148  * don't show shield % if ship has no shields
 149  *
 150  * 3     9/03/97 4:32p John
 151  * changed bmpman to only accept ani and pcx's.  made passing .pcx or .ani
 152  * to bm_load functions not needed.   Made bmpman keep track of palettes
 153  * for bitmaps not mapped into game palettes.
 154  *
 155  * 2     8/25/97 12:24a Lawrance
 156  * implemented HUD shield management
 157  *
 158  * 1     8/24/97 10:31p Lawrance
 159  *
 160  * $NoKeywords: $
 161  */
 162
 163 #include "2d.h"
 164 #include "object.h"
 165 #include "hud.h"
 166 #include "hudtarget.h"
 167 #include "hudtargetbox.h"
 168 #include "hudets.h"
 169 #include "player.h"
 170 #include "gamesnd.h"
 171 #include "freespace.h"
 172 #include "bmpman.h"
 173 #include "timer.h"
 174 #include "hudshield.h"
 175 #include "hudescort.h"
 176 #include "emp.h"
 177 #include "multi.h"
 178
 179 #define NUM_SHIELD_LEVELS               8
 180
 181 #define SHIELD_TRANSFER_PERCENT 0.083f          // 1/12 total shield strength
 182
 183 #define SHIELD_HIT_DURATION_SHORT       300     // time a shield quadrant flashes after being hit
 184 #define SHIELD_FLASH_INTERVAL_FAST      200     // time between shield quadrant flashes
 185
 186 // now read in from hud.tbl
 187 #define MAX_SHIELD_ICONS                40
 188 int Hud_shield_filename_count = 0;
 189 char Hud_shield_filenames[MAX_SHIELD_ICONS][MAX_FILENAME_LEN];
 190
 191 char Shield_mini_fname[GR_NUM_RESOLUTIONS][MAX_FILENAME_LEN] = {
 192         "targhit1",
 193         "targhit1"
 194 };
 195
 196 hud_frames Shield_gauges[MAX_SHIELD_ICONS];
 197
 198 static int Player_shield_coords[GR_NUM_RESOLUTIONS][2] =
 199 {
 200         { // GR_640
 201                 396, 379
 202         },
 203         { // GR_1024
 204                 634, 670
 205         }
 206 };
 207
 208 static int Target_shield_coords[GR_NUM_RESOLUTIONS][2] =
 209 {
 210         { // GR_640
 211                 142, 379
 212         },
 213         { // GR_1024
 214                 292, 670
 215         }
 216 };
 217
 218 static int Hud_shield_inited = 0;
 219
 220 int Shield_mini_coords[GR_NUM_RESOLUTIONS][2] = {
 221         { // GR_640
 222                 305, 291
 223         },
 224         { // GR_1024
 225                 497, 470
 226         }
 227 };
 228
 229 // draw on the mini shield icon what the ship integrity is
 230 int Hud_mini_3digit[GR_NUM_RESOLUTIONS][3] = {
 231         { // GR_640
 232                 310, 298, 0
 233         },
 234         { // GR_1024
 235                 502, 477, 0
 236         }
 237 };
 238 int Hud_mini_2digit[GR_NUM_RESOLUTIONS][3] = {
 239         { // GR_640
 240                 213, 298, 2
 241         },
 242         { // GR_1024
 243                 346, 477, 2
 244         }
 245 };
 246 int Hud_mini_1digit[GR_NUM_RESOLUTIONS][3] = {
 247         { // GR_640
 248                 316, 298, 6
 249         },
 250         { // GR_1024
 251                 511, 477, 6
 252         }
 253 };
 254 int Hud_mini_base[GR_NUM_RESOLUTIONS][2] = {
 255         { // GR_640
 256                 310, 298
 257         },
 258         { // GR_1024
 259                 502, 477
 260         }
 261 };
 262
 263 int Shield_mini_loaded = 0;
 264 hud_frames Shield_mini_gauge;
 265
 266 #define SHIELD_HIT_PLAYER               0
 267 #define SHIELD_HIT_TARGET               1
 268 static shield_hit_info  Shield_hit_data[2];
 269
 270 // translate between clockwise-from-top shield quadrant ordering to way quadrants are numbered in the game
 271 ubyte Quadrant_xlate[4] = {1,0,2,3};
 272
 273 void hud_shield_game_init()
 274 {
 275         char name[MAX_FILENAME_LEN+1] = "";
 276
 277         // read in hud.tbl
 278         read_file_text("hud.tbl");
 279         reset_parse();
 280
 281         Hud_shield_filename_count = 0;
 282         required_string("#Shield Icons Begin");
 283         while(!optional_string("#End")){
 284                 required_string("$Shield:");
 285
 286                 stuff_string(name, F_NAME, NULL);
 287
 288                 // maybe store
 289                 Assert(Hud_shield_filename_count < MAX_SHIELD_ICONS);
 290                 if(Hud_shield_filename_count < MAX_SHIELD_ICONS){
 291                         strcpy(Hud_shield_filenames[Hud_shield_filename_count++], name);
 292                 }
 293         }
 294 }
 295
 296 // called at the start of each level from HUD_init.  Use Hud_shield_init so we only init Shield_gauges[] once.
 297 void hud_shield_level_init()
 298 {
 299         int i;
 300
 301         hud_shield_hit_reset(1);        // reset for the player
 302
 303         if ( Hud_shield_inited ) {
 304                 return;
 305         }
 306
 307         for ( i = 0; i < MAX_SHIELD_ICONS; i++ ) {
 308                 Shield_gauges[i].first_frame = -1;
 309                 Shield_gauges[i].num_frames  = 0;
 310         }
 311
 312         Hud_shield_inited = 1;
 313
 314         if ( !Shield_mini_loaded ) {
 315                 Shield_mini_gauge.first_frame = bm_load_animation(Shield_mini_fname[gr_screen.res], &Shield_mini_gauge.num_frames);
 316                 if ( Shield_mini_gauge.first_frame == -1 ) {
 317                         Warning(LOCATION, "Could not load in the HUD shield ani: Shield_mini_fname[gr_screen.res]\n");
 318                         return;
 319                 }
 320                 Shield_mini_loaded = 1;
 321         }
 322 }
 323
 324 int hud_shield_maybe_flash(int gauge, int target_index, int shield_offset)
 325 {
 326         int                                     flashed = 0;
 327         shield_hit_info *shi;
 328
 329         shi = &Shield_hit_data[target_index];
 330
 331         if ( !timestamp_elapsed(shi->shield_hit_timers[shield_offset]) ) {
 332                 if ( timestamp_elapsed(shi->shield_hit_next_flash[shield_offset]) ) {
 333                         shi->shield_hit_next_flash[shield_offset] = timestamp(SHIELD_FLASH_INTERVAL_FAST);
 334                         shi->shield_show_bright ^= (1<<shield_offset);  // toggle between default and bright frames
 335                 }
 336
 337                 if ( shi->shield_show_bright & (1<<shield_offset) ) {
 338                         // hud_set_bright_color();
 339                         hud_set_gauge_color(gauge, HUD_C_BRIGHT);
 340                         flashed = 1;
 341                 } else {
 342                         hud_set_gauge_color(gauge, HUD_C_NORMAL);
 343                         // hud_set_default_color();
 344                 }
 345         }
 346
 347         return flashed;
 348 }
 349
 350 // ------------------------------------------------------------------
 351 // hud_shield_show()
 352 //
 353 // Show the players shield strength and integrity
 354 //
 355 void hud_shield_show(object *objp)
 356 {
 357         float                   max_shield;
 358         int                     hud_color_index, range;
 359         int                     sx, sy, i;
 360         ship                    *sp;
 361         ship_info       *sip;
 362         hud_frames      *sgp;
 363
 364         if ( objp->type != OBJ_SHIP )
 365                 return;
 366
 367         sp = &Ships[objp->instance];
 368         sip = &Ship_info[sp->ship_info_index];
 369
 370         if ( sip->shield_icon_index == 255 ) {
 371                 return;
 372         }
 373
 374         if (objp == Player_obj) {
 375                 hud_set_gauge_color(HUD_PLAYER_SHIELD_ICON);
 376         } else {
 377                 hud_set_gauge_color(HUD_TARGET_SHIELD_ICON);
 378         }
 379
 380         // load in shield frames if not already loaded
 381         Assert(sip->shield_icon_index >= 0 && sip->shield_icon_index < Hud_shield_filename_count);
 382         sgp = &Shield_gauges[sip->shield_icon_index];
 383
 384         if ( sgp->first_frame == -1 ) {
 385                 sgp->first_frame = bm_load_animation(Hud_shield_filenames[sip->shield_icon_index], &sgp->num_frames);
 386                 if ( sgp->first_frame == -1 ) {
 387                         Warning(LOCATION, "Could not load in the HUD shield ani: %s\n", Hud_shield_filenames[sip->shield_icon_index]);
 388                         return;
 389                 }
 390         }
 391
 392         if ( objp == Player_obj ) {
 393                 sx = Player_shield_coords[gr_screen.res][0];
 394                 sy = Player_shield_coords[gr_screen.res][1];
 395         } else {
 396                 sx = Target_shield_coords[gr_screen.res][0];
 397                 sy = Target_shield_coords[gr_screen.res][1];
 398         }
 399
 400         sx += fl2i(HUD_offset_x);
 401         sy += fl2i(HUD_offset_y);
 402
 403         // draw the ship first
 404         if ( objp == Player_obj ) {
 405                 hud_shield_maybe_flash(HUD_PLAYER_SHIELD_ICON, SHIELD_HIT_PLAYER, HULL_HIT_OFFSET);
 406         } else {
 407                 hud_shield_maybe_flash(HUD_TARGET_SHIELD_ICON, SHIELD_HIT_TARGET, HULL_HIT_OFFSET);
 408         }
 409
 410         GR_AABITMAP(sgp->first_frame, sx, sy);
 411
 412         // draw the four quadrants
 413         //
 414         // Draw shield quadrants at one of NUM_SHIELD_LEVELS
 415         max_shield = sip->shields/4.0f;
 416
 417         for ( i = 0; i < 4; i++ ) {
 418
 419                 if ( objp->flags & OF_NO_SHIELDS ) {
 420                         break;
 421                 }
 422
 423                 if ( objp->shields[Quadrant_xlate[i]] < 0.1f ) {
 424                         continue;
 425                 }
 426
 427                 range = max(HUD_COLOR_ALPHA_MAX, HUD_color_alpha + 4);
 428                 hud_color_index = fl2i( (objp->shields[Quadrant_xlate[i]] / max_shield) * range + 0.5);
 429                 Assert(hud_color_index >= 0 && hud_color_index <= range);
 430
 431                 if ( hud_color_index < 0 ) {
 432                         hud_color_index = 0;
 433                 }
 434                 if ( hud_color_index >= HUD_NUM_COLOR_LEVELS ) {
 435                         hud_color_index = HUD_NUM_COLOR_LEVELS - 1;
 436                 }
 437
 438                 int flash=0;
 439                 if ( objp == Player_obj ) {
 440                         flash = hud_shield_maybe_flash(HUD_PLAYER_SHIELD_ICON, SHIELD_HIT_PLAYER, i);
 441                 } else {
 442                         flash = hud_shield_maybe_flash(HUD_TARGET_SHIELD_ICON, SHIELD_HIT_TARGET, i);
 443                 }
 444
 445                 if ( !flash ) {
 446                         // gr_set_color_fast(&HUD_color_defaults[hud_color_index]);
 447                         if ( objp == Player_obj ) {
 448                                 hud_set_gauge_color(HUD_PLAYER_SHIELD_ICON, hud_color_index);
 449                         } else {
 450                                 hud_set_gauge_color(HUD_TARGET_SHIELD_ICON, hud_color_index);
 451                         }
 452
 453                         GR_AABITMAP(sgp->first_frame+i+1, sx, sy);
 454                 }
 455         }
 456
 457         // hud_set_default_color();
 458 }
 459
 460 // called at beginning of level to page in all ship icons
 461 // used in this level
 462 void hud_ship_icon_page_in(ship_info *sip)
 463 {
 464         hud_frames      *sgp;
 465
 466         if ( sip->shield_icon_index == 255 ) {
 467                 return;
 468         }
 469
 470         // load in shield frames if not already loaded
 471         Assert(sip->shield_icon_index >= 0 && sip->shield_icon_index < Hud_shield_filename_count);
 472         sgp = &Shield_gauges[sip->shield_icon_index];
 473
 474         if ( sgp->first_frame == -1 ) {
 475                 sgp->first_frame = bm_load_animation(Hud_shield_filenames[sip->shield_icon_index], &sgp->num_frames);
 476                 if ( sgp->first_frame == -1 ) {
 477                         Warning(LOCATION, "Could not load in the HUD shield ani: %s\n", Hud_shield_filenames[sip->shield_icon_index]);
 478                         return;
 479                 }
 480         }
 481
 482         int i;
 483         for (i=0; i<sgp->num_frames; i++ )      {
 484                 bm_page_in_aabitmap(sgp->first_frame+i);
 485         }
 486
 487 }
 488
 489 // ------------------------------------------------------------------
 490 // hud_shield_equalize()
 491 //
 492 // Equalize the four shield quadrants for an object
 493 //
 494 void hud_shield_equalize(object *objp, player *pl)
 495 {
 496         float   strength;
 497         int idx;
 498         int all_equal = 1;
 499
 500         Assert(objp != NULL);
 501         if(objp == NULL){
 502                 return;
 503         }
 504         Assert(pl != NULL);
 505         if(pl == NULL){
 506                 return;
 507         }
 508         Assert(objp->type == OBJ_SHIP);
 509         if(objp->type != OBJ_SHIP){
 510                 return;
 511         }
 512
 513         // are all quadrants equal?
 514         for(idx=0; idx<MAX_SHIELD_SECTIONS-1; idx++){
 515                 if(objp->shields[idx] != objp->shields[idx+1]){
 516                         all_equal = 0;
 517                         break;
 518                 }
 519         }
 520
 521         // not all equal
 522         if(!all_equal){
 523                 strength = get_shield_strength(objp);
 524                 if ( strength != 0 ) {
 525                         // maybe impose a 2% penalty - server side and single player only
 526                         if(!MULTIPLAYER_CLIENT &&  (pl->shield_penalty_stamp < 0) || timestamp_elapsed_safe(pl->shield_penalty_stamp, 1000) ){
 527                                 strength *= 0.98f;
 528
 529                                 // reset the penalty timestamp
 530                                 pl->shield_penalty_stamp = timestamp(1000);
 531                         }
 532
 533                         set_shield_strength(objp, strength);
 534                 }
 535         }
 536
 537         // beep
 538         if ( objp == Player_obj ){
 539                 snd_play( &Snds[SND_SHIELD_XFER_OK] );
 540         }
 541 }
 542
 543 // ------------------------------------------------------------------
 544 // hud_augment_shield_quadrant()
 545 //
 546 // Transfer shield energy to a shield quadrant from the three other
 547 //      quadrants.  Works by trying to transfer a fixed amount of shield
 548 //      energy from the other three quadrants, taking the same percentage
 549 // from each quadrant.
 550 //
 551 //      input:  objp                    =>              object to perform shield transfer on
 552 //                              direction       =>              which quadrant to augment:
 553 //                                                                              0 - right
 554 //                                                                              1 - top
 555 //                                                                              2 - bottom
 556 //                                                                              3 - left
 557 //
 558 void hud_augment_shield_quadrant(object *objp, int direction)
 559 {
 560         float   full_shields, xfer_amount, energy_avail, percent_to_take, delta;
 561         float   max_quadrant_val;
 562         int     i;
 563
 564         Assert(direction >= 0 && direction < 4);
 565         Assert(objp->type == OBJ_SHIP);
 566         full_shields = Ship_info[Ships[objp->instance].ship_info_index].shields;
 567
 568         xfer_amount = full_shields * SHIELD_TRANSFER_PERCENT;
 569         max_quadrant_val = full_shields/4.0f;
 570
 571         if ( (objp->shields[direction] + xfer_amount) > max_quadrant_val )
 572                 xfer_amount = max_quadrant_val - objp->shields[direction];
 573
 574         Assert(xfer_amount >= 0);
 575         if ( xfer_amount == 0 ) {
 576                 // TODO: provide a feedback sound
 577                 return;
 578         }
 579         else {
 580                 snd_play( &Snds[SND_SHIELD_XFER_OK] );
 581         }
 582
 583         energy_avail = 0.0f;
 584         for ( i = 0; i < MAX_SHIELD_SECTIONS; i++ ) {
 585                 if ( i == direction )
 586                         continue;
 587                 energy_avail += objp->shields[i];
 588         }
 589
 590         percent_to_take = xfer_amount/energy_avail;
 591         if ( percent_to_take > 1.0f )
 592                 percent_to_take = 1.0f;
 593
 594         for ( i = 0; i < MAX_SHIELD_SECTIONS; i++ ) {
 595                 if ( i == direction )
 596                         continue;
 597                 delta = percent_to_take * objp->shields[i];
 598                 objp->shields[i] -= delta;
 599                 Assert(objp->shields[i] >= 0 );
 600                 objp->shields[direction] += delta;
 601                 if ( objp->shields[direction] > max_quadrant_val )
 602                         objp->shields[direction] = max_quadrant_val;
 603         }
 604 }
 605
 606 // Try to find a match between filename and the names inside
 607 // of Hud_shield_filenames.  This will provide us with an
 608 // association of ship class to shield icon information.
 609 void hud_shield_assign_info(ship_info *sip, char *filename)
 610 {
 611         ubyte i;
 612
 613         for ( i = 0; i < Hud_shield_filename_count; i++ ) {
 614                 if ( !stricmp(filename, Hud_shield_filenames[i]) ) {
 615                         sip->shield_icon_index = i;
 616                 }
 617         }
 618 }
 619
 620 void hud_show_mini_ship_integrity(object *objp, int x_force, int y_force)
 621 {
 622         char    text_integrity[64];
 623         int     numeric_integrity;
 624         float p_target_integrity,initial_hull;
 625         int     nx, ny;
 626
 627         initial_hull = Ship_info[Ships[objp->instance].ship_info_index].initial_hull_strength;
 628         if (  initial_hull <= 0 ) {
 629                 Int3(); // illegal initial hull strength
 630                 p_target_integrity = 0.0f;
 631         } else {
 632                 p_target_integrity = objp->hull_strength / initial_hull;
 633                 if (p_target_integrity < 0){
 634                         p_target_integrity = 0.0f;
 635                 }
 636         }
 637
 638         numeric_integrity = fl2i(p_target_integrity*100 + 0.5f);
 639         if(numeric_integrity > 100){
 640                 numeric_integrity = 100;
 641         }
 642         // Assert(numeric_integrity <= 100);
 643
 644         // base coords
 645         nx = (x_force == -1) ? Hud_mini_base[gr_screen.res][0] : x_force;
 646         ny = (y_force == -1) ? Hud_mini_base[gr_screen.res][1] : y_force;
 647
 648         // 3 digit hull strength
 649         if ( numeric_integrity == 100 ) {
 650                 nx += Hud_mini_3digit[gr_screen.res][2];
 651         }
 652         // 2 digit hull strength
 653         else if ( numeric_integrity < 10 ) {
 654                 nx += Hud_mini_1digit[gr_screen.res][2];
 655         }
 656         // 1 digit hull strength
 657         else {
 658                 nx += Hud_mini_2digit[gr_screen.res][2];
 659         }
 660
 661         if ( numeric_integrity == 0 ) {
 662                 if ( p_target_integrity > 0 ) {
 663                         numeric_integrity = 1;
 664                 }
 665         }
 666
 667         nx += fl2i( HUD_offset_x );
 668         ny += fl2i( HUD_offset_y );
 669
 670         sprintf(text_integrity, "%d", numeric_integrity);
 671         if ( numeric_integrity < 100 ) {
 672                 hud_num_make_mono(text_integrity);
 673         }
 674
 675         gr_string(nx, ny, text_integrity);
 676 }
 677
 678 // Draw the miniature shield icon that is drawn near the reticle
 679 void hud_shield_show_mini(object *objp, int x_force, int y_force, int x_hull_offset, int y_hull_offset)
 680 {
 681         float                   max_shield;
 682         int                     hud_color_index, range, frame_offset;
 683         int                     sx, sy, i;
 684         ship                    *sp;
 685         ship_info       *sip;
 686         shield_hit_info *shi;
 687
 688         shi = &Shield_hit_data[SHIELD_HIT_TARGET];
 689
 690         if ( objp->type != OBJ_SHIP ) {
 691                 return;
 692         }
 693
 694         sp = &Ships[objp->instance];
 695         sip = &Ship_info[sp->ship_info_index];
 696
 697         hud_set_gauge_color(HUD_TARGET_MINI_ICON);
 698
 699         if (!Shield_mini_loaded)
 700                 return;
 701
 702         sx = (x_force == -1) ? Shield_mini_coords[gr_screen.res][0]+fl2i(HUD_offset_x) : x_force;
 703         sy = (y_force == -1) ? Shield_mini_coords[gr_screen.res][1]+fl2i(HUD_offset_y) : y_force;
 704
 705         // draw the ship first
 706         hud_shield_maybe_flash(HUD_TARGET_MINI_ICON, SHIELD_HIT_TARGET, HULL_HIT_OFFSET);
 707         hud_show_mini_ship_integrity(objp,x_force + x_hull_offset,y_force + y_hull_offset);
 708
 709         // draw the four quadrants
 710         // Draw shield quadrants at one of NUM_SHIELD_LEVELS
 711         max_shield = sip->shields/4.0f;
 712
 713         for ( i = 0; i < 4; i++ ) {
 714
 715                 if ( objp->flags & OF_NO_SHIELDS ) {
 716                         break;
 717                 }
 718
 719                 if ( objp->shields[Quadrant_xlate[i]] < 0.1f ) {
 720                         continue;
 721                 }
 722
 723                 if ( hud_shield_maybe_flash(HUD_TARGET_MINI_ICON, SHIELD_HIT_TARGET, i) ) {
 724                         frame_offset = i+4;
 725                 } else {
 726                         frame_offset = i;
 727                 }
 728
 729                 range = HUD_color_alpha;
 730                 hud_color_index = fl2i( (objp->shields[Quadrant_xlate[i]] / max_shield) * range + 0.5);
 731                 Assert(hud_color_index >= 0 && hud_color_index <= range);
 732
 733                 if ( hud_color_index < 0 ) {
 734                         hud_color_index = 0;
 735                 }
 736                 if ( hud_color_index >= HUD_NUM_COLOR_LEVELS ) {
 737                         hud_color_index = HUD_NUM_COLOR_LEVELS - 1;
 738                 }
 739
 740                 if ( hud_gauge_maybe_flash(HUD_TARGET_MINI_ICON) == 1) {
 741                         // hud_set_bright_color();
 742                         hud_set_gauge_color(HUD_TARGET_MINI_ICON, HUD_C_BRIGHT);
 743                 } else {
 744                         // gr_set_color_fast(&HUD_color_defaults[hud_color_index]);
 745                         hud_set_gauge_color(HUD_TARGET_MINI_ICON, hud_color_index);
 746                 }
 747
 748                 GR_AABITMAP(Shield_mini_gauge.first_frame + frame_offset, sx, sy);
 749         }
 750
 751         // hud_set_default_color();
 752 }
 753
 754 // reset the shield_hit_info data structure
 755 void shield_info_reset(shield_hit_info *shi)
 756 {
 757         int i;
 758
 759         shi->shield_hit_status = 0;
 760         shi->shield_show_bright = 0;
 761         for ( i = 0; i < NUM_SHIELD_HIT_MEMBERS; i++ ) {
 762                 shi->shield_hit_timers[i] = 1;
 763                 shi->shield_hit_next_flash[i] = 1;
 764         }
 765 }
 766
 767 // reset the timers and hit flags for the shield gauges
 768 //
 769 // This needs to be called whenever the player selects a new target
 770 //
 771 // input:       player  =>      optional parameter (default value 0).  This is to indicate that player shield hit
 772 //                                                              info should be reset.  This is normally not the case.
 773 //                                                              is for the player's current target
 774 void hud_shield_hit_reset(int player)
 775 {
 776         shield_hit_info *shi;
 777
 778         if (player) {
 779                 shi = &Shield_hit_data[SHIELD_HIT_PLAYER];
 780         } else {
 781                 shi = &Shield_hit_data[SHIELD_HIT_TARGET];
 782         }
 783
 784         shield_info_reset(shi);
 785 }
 786
 787 // called once per frame to update the state of Shield_hit_status based on the Shield_hit_timers[]
 788 void hud_shield_hit_update()
 789 {
 790         int i, j, limit;
 791
 792         limit = 1;
 793         if ( Player_ai->target_objnum >= 0 ) {
 794                 limit = 2;
 795         }
 796
 797         for ( i = 0; i < limit; i++ ) {
 798                 for ( j = 0; j < NUM_SHIELD_HIT_MEMBERS; j++ ) {
 799                         if ( timestamp_elapsed(Shield_hit_data[i].shield_hit_timers[j]) ) {
 800                                 Shield_hit_data[i].shield_hit_status &= ~(1<<j);
 801                                 Shield_hit_data[i].shield_show_bright &= ~(1<<j);
 802                         }
 803                 }
 804         }
 805 }
 806
 807 // called when a shield quadrant is struct, so we can update the timer that will draw the quadrant
 808 // as flashing
 809 //
 810 // input:
 811 //                              objp            =>      object pointer for ship that has been hit
 812 //                              quadrant        => quadrant of shield getting hit (-1 if no shield is present)
 813 void hud_shield_quadrant_hit(object *objp, int quadrant)
 814 {
 815         shield_hit_info *shi;
 816         int                                     num;
 817
 818         if ( objp->type != OBJ_SHIP )
 819                 return;
 820
 821         hud_escort_ship_hit(objp, quadrant);
 822         hud_gauge_popup_start(HUD_TARGET_MINI_ICON);
 823
 824         if ( OBJ_INDEX(objp) == Player_ai->target_objnum ) {
 825                 shi = &Shield_hit_data[SHIELD_HIT_TARGET];
 826         } else if ( objp == Player_obj ) {
 827                 shi = &Shield_hit_data[SHIELD_HIT_PLAYER];
 828         } else {
 829                 return;
 830         }
 831
 832         if ( quadrant >= 0 ) {
 833                 num = Quadrant_xlate[quadrant];
 834                 shi->shield_hit_timers[num] = timestamp(300);
 835         } else {
 836                 shi->shield_hit_timers[HULL_HIT_OFFSET] = timestamp(SHIELD_HIT_DURATION_SHORT);
 837                 hud_targetbox_start_flash(TBOX_FLASH_HULL);
 838         }
 839 }
 840
 841
 842 void hudshield_page_in()
 843 {
 844         bm_page_in_aabitmap( Shield_mini_gauge.first_frame, Shield_mini_gauge.num_frames );
 845 }