src/game/g_items.pas

   1 (* Copyright (C)  DooM 2D:Forever Developers
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, either version 3 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *)
  16 {$INCLUDE ../shared/a_modes.inc}
  17 unit g_items;
  18
  19 interface
  20
  21 uses
  22   g_textures, g_phys, g_saveload, BinEditor, MAPDEF;
  23
  24 Type
  25   PItem = ^TItem;
  26   TItem = record
  27   private
  28     //treeNode: Integer;
  29     slotIsUsed: Boolean;
  30     arrIdx: Integer; // in ggItems
  31
  32   public
  33     ItemType:      Byte;
  34     Respawnable:   Boolean;
  35     InitX, InitY:  Integer;
  36     RespawnTime:   Word;
  37     alive:         Boolean;
  38     Fall:          Boolean;
  39     QuietRespawn:  Boolean;
  40     SpawnTrigger:  Integer;
  41     Obj:           TObj;
  42     Animation:     TAnimation;
  43
  44     procedure positionChanged (); //WARNING! call this after monster position was changed, or coldet will not work right!
  45
  46     property myid: Integer read arrIdx;
  47   end;
  48
  49 procedure g_Items_LoadData();
  50 procedure g_Items_FreeData();
  51 procedure g_Items_Init();
  52 procedure g_Items_Free();
  53 function g_Items_Create(X, Y: Integer; ItemType: Byte;
  54            Fall, Respawnable: Boolean; AdjCoord: Boolean = False; ForcedID: Integer = -1): DWORD;
  55 procedure g_Items_Update();
  56 procedure g_Items_Draw();
  57 procedure g_Items_Pick(ID: DWORD);
  58 procedure g_Items_Remove(ID: DWORD);
  59 procedure g_Items_SaveState(var Mem: TBinMemoryWriter);
  60 procedure g_Items_LoadState(var Mem: TBinMemoryReader);
  61
  62 procedure g_Items_RestartRound ();
  63
  64 function g_Items_ValidId (idx: Integer): Boolean; inline;
  65 function g_Items_ByIdx (idx: Integer): PItem;
  66 function g_Items_ObjByIdx (idx: Integer): PObj;
  67
  68 procedure g_Items_EmitPickupSound (idx: Integer); // at item position
  69 procedure g_Items_EmitPickupSoundAt (idx, x, y: Integer);
  70
  71 procedure g_Items_AddDynLights();
  72
  73
  74 type
  75   TItemEachAliveCB = function (it: PItem): Boolean is nested; // return `true` to stop
  76
  77 function g_Items_ForEachAlive (cb: TItemEachAliveCB; backwards: Boolean=false): Boolean;
  78
  79
  80 var
  81   gItemsTexturesID: Array [1..ITEM_MAX] of DWORD;
  82   gMaxDist: Integer = 1; // for sounds
  83   ITEM_RESPAWNTIME: Integer = 60 * 36;
  84
  85 implementation
  86
  87 uses
  88   g_basic, e_graphics, g_sound, g_main, g_gfx, g_map,
  89   Math, g_game, g_triggers, g_console, SysUtils, g_player, g_net, g_netmsg,
  90   e_log,
  91   g_grid, binheap, idpool;
  92
  93
  94 var
  95   ggItems: Array of TItem = nil;
  96
  97
  98 // ////////////////////////////////////////////////////////////////////////// //
  99 var
 100   freeIds: TIdPool = nil;
 101
 102
 103 // ////////////////////////////////////////////////////////////////////////// //
 104 function g_Items_ValidId (idx: Integer): Boolean; inline;
 105 begin
 106   result := false;
 107   if (idx < 0) or (idx > High(ggItems)) then exit;
 108   if not ggItems[idx].slotIsUsed then exit;
 109   result := true;
 110 end;
 111
 112
 113 function g_Items_ByIdx (idx: Integer): PItem;
 114 begin
 115   if (idx < 0) or (idx > High(ggItems)) then raise Exception.Create('g_ItemObjByIdx: invalid index');
 116   result := @ggItems[idx];
 117   if not result.slotIsUsed then raise Exception.Create('g_ItemObjByIdx: requested inexistent item');
 118 end;
 119
 120
 121 function g_Items_ObjByIdx (idx: Integer): PObj;
 122 begin
 123   if (idx < 0) or (idx > High(ggItems)) then raise Exception.Create('g_ItemObjByIdx: invalid index');
 124   if not ggItems[idx].slotIsUsed then raise Exception.Create('g_ItemObjByIdx: requested inexistent item');
 125   result := @ggItems[idx].Obj;
 126 end;
 127
 128
 129 // ////////////////////////////////////////////////////////////////////////// //
 130 procedure TItem.positionChanged ();
 131 begin
 132 end;
 133
 134
 135 // ////////////////////////////////////////////////////////////////////////// //
 136 const
 137   ITEM_SIGNATURE = $4D455449; // 'ITEM'
 138
 139   ITEMSIZE: Array [ITEM_MEDKIT_SMALL..ITEM_MAX] of Array [0..1] of Byte =
 140     (((14), (15)), // MEDKIT_SMALL
 141      ((28), (19)), // MEDKIT_LARGE
 142      ((28), (19)), // MEDKIT_BLACK
 143      ((31), (16)), // ARMOR_GREEN
 144      ((31), (16)), // ARMOR_BLUE
 145      ((25), (25)), // SPHERE_BLUE
 146      ((25), (25)), // SPHERE_WHITE
 147      ((24), (47)), // SUIT
 148      ((14), (27)), // OXYGEN
 149      ((25), (25)), // INVUL
 150      ((62), (24)), // WEAPON_SAW
 151      ((63), (12)), // WEAPON_SHOTGUN1
 152      ((54), (13)), // WEAPON_SHOTGUN2
 153      ((54), (16)), // WEAPON_CHAINGUN
 154      ((62), (16)), // WEAPON_ROCKETLAUNCHER
 155      ((54), (16)), // WEAPON_PLASMA
 156      ((61), (36)), // WEAPON_BFG
 157      ((54), (16)), // WEAPON_SUPERPULEMET
 158      (( 9), (11)), // AMMO_BULLETS
 159      ((28), (16)), // AMMO_BULLETS_BOX
 160      ((15), ( 7)), // AMMO_SHELLS
 161      ((32), (12)), // AMMO_SHELLS_BOX
 162      ((12), (27)), // AMMO_ROCKET
 163      ((54), (21)), // AMMO_ROCKET_BOX
 164      ((15), (12)), // AMMO_CELL
 165      ((32), (21)), // AMMO_CELL_BIG
 166      ((22), (29)), // AMMO_BACKPACK
 167      ((16), (16)), // KEY_RED
 168      ((16), (16)), // KEY_GREEN
 169      ((16), (16)), // KEY_BLUE
 170      (( 1), ( 1)), // WEAPON_KASTET
 171      ((43), (16)), // WEAPON_PISTOL
 172      ((14), (18)), // BOTTLE
 173      ((16), (15)), // HELMET
 174      ((32), (24)), // JETPACK
 175      ((25), (25)), // INVIS
 176      ((53), (20)), // WEAPON_FLAMETHROWER
 177      ((13), (20))); // AMMO_FUELCAN
 178
 179 procedure InitTextures();
 180 begin
 181   g_Texture_Get('ITEM_MEDKIT_SMALL',     gItemsTexturesID[ITEM_MEDKIT_SMALL]);
 182   g_Texture_Get('ITEM_MEDKIT_LARGE',     gItemsTexturesID[ITEM_MEDKIT_LARGE]);
 183   g_Texture_Get('ITEM_MEDKIT_BLACK',     gItemsTexturesID[ITEM_MEDKIT_BLACK]);
 184   g_Texture_Get('ITEM_SUIT',             gItemsTexturesID[ITEM_SUIT]);
 185   g_Texture_Get('ITEM_OXYGEN',           gItemsTexturesID[ITEM_OXYGEN]);
 186   g_Texture_Get('ITEM_WEAPON_SAW',       gItemsTexturesID[ITEM_WEAPON_SAW]);
 187   g_Texture_Get('ITEM_WEAPON_SHOTGUN1',  gItemsTexturesID[ITEM_WEAPON_SHOTGUN1]);
 188   g_Texture_Get('ITEM_WEAPON_SHOTGUN2',  gItemsTexturesID[ITEM_WEAPON_SHOTGUN2]);
 189   g_Texture_Get('ITEM_WEAPON_CHAINGUN',  gItemsTexturesID[ITEM_WEAPON_CHAINGUN]);
 190   g_Texture_Get('ITEM_WEAPON_ROCKETLAUNCHER', gItemsTexturesID[ITEM_WEAPON_ROCKETLAUNCHER]);
 191   g_Texture_Get('ITEM_WEAPON_PLASMA',    gItemsTexturesID[ITEM_WEAPON_PLASMA]);
 192   g_Texture_Get('ITEM_WEAPON_BFG',       gItemsTexturesID[ITEM_WEAPON_BFG]);
 193   g_Texture_Get('ITEM_WEAPON_SUPERPULEMET', gItemsTexturesID[ITEM_WEAPON_SUPERPULEMET]);
 194   g_Texture_Get('ITEM_WEAPON_FLAMETHROWER', gItemsTexturesID[ITEM_WEAPON_FLAMETHROWER]);
 195   g_Texture_Get('ITEM_AMMO_BULLETS',     gItemsTexturesID[ITEM_AMMO_BULLETS]);
 196   g_Texture_Get('ITEM_AMMO_BULLETS_BOX', gItemsTexturesID[ITEM_AMMO_BULLETS_BOX]);
 197   g_Texture_Get('ITEM_AMMO_SHELLS',      gItemsTexturesID[ITEM_AMMO_SHELLS]);
 198   g_Texture_Get('ITEM_AMMO_SHELLS_BOX',  gItemsTexturesID[ITEM_AMMO_SHELLS_BOX]);
 199   g_Texture_Get('ITEM_AMMO_ROCKET',      gItemsTexturesID[ITEM_AMMO_ROCKET]);
 200   g_Texture_Get('ITEM_AMMO_ROCKET_BOX',  gItemsTexturesID[ITEM_AMMO_ROCKET_BOX]);
 201   g_Texture_Get('ITEM_AMMO_CELL',        gItemsTexturesID[ITEM_AMMO_CELL]);
 202   g_Texture_Get('ITEM_AMMO_CELL_BIG',    gItemsTexturesID[ITEM_AMMO_CELL_BIG]);
 203   g_Texture_Get('ITEM_AMMO_FUELCAN',     gItemsTexturesID[ITEM_AMMO_FUELCAN]);
 204   g_Texture_Get('ITEM_AMMO_BACKPACK',    gItemsTexturesID[ITEM_AMMO_BACKPACK]);
 205   g_Texture_Get('ITEM_KEY_RED',          gItemsTexturesID[ITEM_KEY_RED]);
 206   g_Texture_Get('ITEM_KEY_GREEN',        gItemsTexturesID[ITEM_KEY_GREEN]);
 207   g_Texture_Get('ITEM_KEY_BLUE',         gItemsTexturesID[ITEM_KEY_BLUE]);
 208   g_Texture_Get('ITEM_WEAPON_KASTET',    gItemsTexturesID[ITEM_WEAPON_KASTET]);
 209   g_Texture_Get('ITEM_WEAPON_PISTOL',    gItemsTexturesID[ITEM_WEAPON_PISTOL]);
 210   g_Texture_Get('ITEM_JETPACK',          gItemsTexturesID[ITEM_JETPACK]);
 211 end;
 212
 213 procedure g_Items_LoadData();
 214 begin
 215   e_WriteLog('Loading items data...', MSG_NOTIFY);
 216
 217   g_Sound_CreateWADEx('SOUND_ITEM_RESPAWNITEM', GameWAD+':SOUNDS\RESPAWNITEM');
 218   g_Sound_CreateWADEx('SOUND_ITEM_GETRULEZ', GameWAD+':SOUNDS\GETRULEZ');
 219   g_Sound_CreateWADEx('SOUND_ITEM_GETWEAPON', GameWAD+':SOUNDS\GETWEAPON');
 220   g_Sound_CreateWADEx('SOUND_ITEM_GETITEM', GameWAD+':SOUNDS\GETITEM');
 221
 222   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_BLUESPHERE', GameWAD+':TEXTURES\SBLUE', 32, 32, 4, True);
 223   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_WHITESPHERE', GameWAD+':TEXTURES\SWHITE', 32, 32, 4, True);
 224   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_ARMORGREEN', GameWAD+':TEXTURES\ARMORGREEN', 32, 16, 3, True);
 225   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_ARMORBLUE', GameWAD+':TEXTURES\ARMORBLUE', 32, 16, 3, True);
 226   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_INVUL', GameWAD+':TEXTURES\INVUL', 32, 32, 4, True);
 227   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_INVIS', GameWAD+':TEXTURES\INVIS', 32, 32, 4, True);
 228   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_RESPAWN', GameWAD+':TEXTURES\ITEMRESPAWN', 32, 32, 5, True);
 229   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_BOTTLE', GameWAD+':TEXTURES\BOTTLE', 16, 32, 4, True);
 230   g_Frames_CreateWAD(nil, 'FRAMES_ITEM_HELMET', GameWAD+':TEXTURES\HELMET', 16, 16, 4, True);
 231   g_Frames_CreateWAD(nil, 'FRAMES_FLAG_RED', GameWAD+':TEXTURES\FLAGRED', 64, 64, 5, False);
 232   g_Frames_CreateWAD(nil, 'FRAMES_FLAG_BLUE', GameWAD+':TEXTURES\FLAGBLUE', 64, 64, 5, False);
 233   g_Frames_CreateWAD(nil, 'FRAMES_FLAG_DOM', GameWAD+':TEXTURES\FLAGDOM', 64, 64, 5, False);
 234   g_Texture_CreateWADEx('ITEM_MEDKIT_SMALL', GameWAD+':TEXTURES\MED1');
 235   g_Texture_CreateWADEx('ITEM_MEDKIT_LARGE', GameWAD+':TEXTURES\MED2');
 236   g_Texture_CreateWADEx('ITEM_WEAPON_SAW', GameWAD+':TEXTURES\SAW');
 237   g_Texture_CreateWADEx('ITEM_WEAPON_PISTOL', GameWAD+':TEXTURES\PISTOL');
 238   g_Texture_CreateWADEx('ITEM_WEAPON_KASTET', GameWAD+':TEXTURES\KASTET');
 239   g_Texture_CreateWADEx('ITEM_WEAPON_SHOTGUN1', GameWAD+':TEXTURES\SHOTGUN1');
 240   g_Texture_CreateWADEx('ITEM_WEAPON_SHOTGUN2', GameWAD+':TEXTURES\SHOTGUN2');
 241   g_Texture_CreateWADEx('ITEM_WEAPON_CHAINGUN', GameWAD+':TEXTURES\MGUN');
 242   g_Texture_CreateWADEx('ITEM_WEAPON_ROCKETLAUNCHER', GameWAD+':TEXTURES\RLAUNCHER');
 243   g_Texture_CreateWADEx('ITEM_WEAPON_PLASMA', GameWAD+':TEXTURES\PGUN');
 244   g_Texture_CreateWADEx('ITEM_WEAPON_BFG', GameWAD+':TEXTURES\BFG');
 245   g_Texture_CreateWADEx('ITEM_WEAPON_SUPERPULEMET', GameWAD+':TEXTURES\SPULEMET');
 246   g_Texture_CreateWADEx('ITEM_WEAPON_FLAMETHROWER', GameWAD+':TEXTURES\FLAMETHROWER');
 247   g_Texture_CreateWADEx('ITEM_AMMO_BULLETS', GameWAD+':TEXTURES\CLIP');
 248   g_Texture_CreateWADEx('ITEM_AMMO_BULLETS_BOX', GameWAD+':TEXTURES\AMMO');
 249   g_Texture_CreateWADEx('ITEM_AMMO_SHELLS', GameWAD+':TEXTURES\SHELL1');
 250   g_Texture_CreateWADEx('ITEM_AMMO_SHELLS_BOX', GameWAD+':TEXTURES\SHELL2');
 251   g_Texture_CreateWADEx('ITEM_AMMO_ROCKET', GameWAD+':TEXTURES\ROCKET');
 252   g_Texture_CreateWADEx('ITEM_AMMO_ROCKET_BOX', GameWAD+':TEXTURES\ROCKETS');
 253   g_Texture_CreateWADEx('ITEM_AMMO_CELL', GameWAD+':TEXTURES\CELL');
 254   g_Texture_CreateWADEx('ITEM_AMMO_CELL_BIG', GameWAD+':TEXTURES\CELL2');
 255   g_Texture_CreateWADEx('ITEM_AMMO_FUELCAN', GameWAD+':TEXTURES\FUELCAN');
 256   g_Texture_CreateWADEx('ITEM_AMMO_BACKPACK', GameWAD+':TEXTURES\BPACK');
 257   g_Texture_CreateWADEx('ITEM_KEY_RED', GameWAD+':TEXTURES\KEYR');
 258   g_Texture_CreateWADEx('ITEM_KEY_GREEN', GameWAD+':TEXTURES\KEYG');
 259   g_Texture_CreateWADEx('ITEM_KEY_BLUE', GameWAD+':TEXTURES\KEYB');
 260   g_Texture_CreateWADEx('ITEM_OXYGEN', GameWAD+':TEXTURES\OXYGEN');
 261   g_Texture_CreateWADEx('ITEM_SUIT', GameWAD+':TEXTURES\SUIT');
 262   g_Texture_CreateWADEx('ITEM_WEAPON_KASTET', GameWAD+':TEXTURES\KASTET');
 263   g_Texture_CreateWADEx('ITEM_MEDKIT_BLACK', GameWAD+':TEXTURES\BMED');
 264   g_Texture_CreateWADEx('ITEM_JETPACK', GameWAD+':TEXTURES\JETPACK');
 265
 266   InitTextures();
 267
 268   freeIds := TIdPool.Create();
 269 end;
 270
 271
 272 procedure g_Items_FreeData();
 273 begin
 274   e_WriteLog('Releasing items data...', MSG_NOTIFY);
 275
 276   g_Sound_Delete('SOUND_ITEM_RESPAWNITEM');
 277   g_Sound_Delete('SOUND_ITEM_GETRULEZ');
 278   g_Sound_Delete('SOUND_ITEM_GETWEAPON');
 279   g_Sound_Delete('SOUND_ITEM_GETITEM');
 280
 281   g_Frames_DeleteByName('FRAMES_ITEM_BLUESPHERE');
 282   g_Frames_DeleteByName('FRAMES_ITEM_WHITESPHERE');
 283   g_Frames_DeleteByName('FRAMES_ITEM_ARMORGREEN');
 284   g_Frames_DeleteByName('FRAMES_ITEM_ARMORBLUE');
 285   g_Frames_DeleteByName('FRAMES_ITEM_INVUL');
 286   g_Frames_DeleteByName('FRAMES_ITEM_INVIS');
 287   g_Frames_DeleteByName('FRAMES_ITEM_RESPAWN');
 288   g_Frames_DeleteByName('FRAMES_ITEM_BOTTLE');
 289   g_Frames_DeleteByName('FRAMES_ITEM_HELMET');
 290   g_Frames_DeleteByName('FRAMES_FLAG_RED');
 291   g_Frames_DeleteByName('FRAMES_FLAG_BLUE');
 292   g_Frames_DeleteByName('FRAMES_FLAG_DOM');
 293   g_Texture_Delete('ITEM_MEDKIT_SMALL');
 294   g_Texture_Delete('ITEM_MEDKIT_LARGE');
 295   g_Texture_Delete('ITEM_WEAPON_SAW');
 296   g_Texture_Delete('ITEM_WEAPON_PISTOL');
 297   g_Texture_Delete('ITEM_WEAPON_KASTET');
 298   g_Texture_Delete('ITEM_WEAPON_SHOTGUN1');
 299   g_Texture_Delete('ITEM_WEAPON_SHOTGUN2');
 300   g_Texture_Delete('ITEM_WEAPON_CHAINGUN');
 301   g_Texture_Delete('ITEM_WEAPON_ROCKETLAUNCHER');
 302   g_Texture_Delete('ITEM_WEAPON_PLASMA');
 303   g_Texture_Delete('ITEM_WEAPON_BFG');
 304   g_Texture_Delete('ITEM_WEAPON_SUPERPULEMET');
 305   g_Texture_Delete('ITEM_WEAPON_FLAMETHROWER');
 306   g_Texture_Delete('ITEM_AMMO_BULLETS');
 307   g_Texture_Delete('ITEM_AMMO_BULLETS_BOX');
 308   g_Texture_Delete('ITEM_AMMO_SHELLS');
 309   g_Texture_Delete('ITEM_AMMO_SHELLS_BOX');
 310   g_Texture_Delete('ITEM_AMMO_ROCKET');
 311   g_Texture_Delete('ITEM_AMMO_ROCKET_BOX');
 312   g_Texture_Delete('ITEM_AMMO_CELL');
 313   g_Texture_Delete('ITEM_AMMO_CELL_BIG');
 314   g_Texture_Delete('ITEM_AMMO_FUELCAN');
 315   g_Texture_Delete('ITEM_AMMO_BACKPACK');
 316   g_Texture_Delete('ITEM_KEY_RED');
 317   g_Texture_Delete('ITEM_KEY_GREEN');
 318   g_Texture_Delete('ITEM_KEY_BLUE');
 319   g_Texture_Delete('ITEM_OXYGEN');
 320   g_Texture_Delete('ITEM_SUIT');
 321   g_Texture_Delete('ITEM_WEAPON_KASTET');
 322   g_Texture_Delete('ITEM_MEDKIT_BLACK');
 323   g_Texture_Delete('ITEM_JETPACK');
 324
 325   freeIds.Free();
 326   freeIds := nil;
 327 end;
 328
 329
 330 procedure releaseItem (idx: Integer);
 331 var
 332   it: PItem;
 333 begin
 334   if (idx < 0) or (idx > High(ggItems)) then raise Exception.Create('releaseItem: invalid item id');
 335   if not freeIds.hasAlloced[LongWord(idx)] then raise Exception.Create('releaseItem: trying to release unallocated item (0)');
 336   it := @ggItems[idx];
 337   if not it.slotIsUsed then raise Exception.Create('releaseItem: trying to release unallocated item (1)');
 338   if (it.arrIdx <> idx) then raise Exception.Create('releaseItem: arrIdx inconsistency');
 339   it.slotIsUsed := false;
 340   if (it.Animation <> nil) then
 341   begin
 342     it.Animation.Free();
 343     it.Animation := nil;
 344   end;
 345   it.alive := False;
 346   it.SpawnTrigger := -1;
 347   it.ItemType := ITEM_NONE;
 348   freeIds.release(LongWord(idx));
 349 end;
 350
 351
 352 procedure growItemArrayTo (newsz: Integer);
 353 var
 354   i, olen: Integer;
 355   it: PItem;
 356 begin
 357   if (newsz < Length(ggItems)) then exit;
 358   // no free slots
 359   olen := Length(ggItems);
 360   SetLength(ggItems, newsz);
 361   for i := olen to High(ggItems) do
 362   begin
 363     it := @ggItems[i];
 364     it.slotIsUsed := false;
 365     it.arrIdx := i;
 366     it.ItemType := ITEM_NONE;
 367     it.Animation := nil;
 368     it.alive := false;
 369     it.SpawnTrigger := -1;
 370     it.Respawnable := false;
 371     //if not freeIds.hasFree[LongWord(i)] then raise Exception.Create('internal error in item idx manager');
 372   end;
 373 end;
 374
 375
 376 function allocItem (): DWORD;
 377 begin
 378   result := freeIds.alloc();
 379   if (result >= Length(ggItems)) then growItemArrayTo(Integer(result)+64);
 380   if (Integer(result) > High(ggItems)) then raise Exception.Create('allocItem: freeid list corrupted');
 381   if (ggItems[result].arrIdx <> Integer(result)) then raise Exception.Create('allocItem: arrIdx inconsistency');
 382 end;
 383
 384
 385 // it will be slow if the slot is free (we have to rebuild the heap)
 386 function wantItemSlot (slot: Integer): Integer;
 387 var
 388   olen: Integer;
 389   it: PItem;
 390 begin
 391   if (slot < 0) or (slot > $0fffffff) then raise Exception.Create('wantItemSlot: bad item slot request');
 392   // do we need to grow item storate?
 393   olen := Length(ggItems);
 394   if (slot >= olen) then growItemArrayTo(slot+64);
 395
 396   it := @ggItems[slot];
 397   if not it.slotIsUsed then
 398   begin
 399     freeIds.alloc(LongWord(slot));
 400   end
 401   else
 402   begin
 403     if not freeIds.hasAlloced[slot] then raise Exception.Create('wantItemSlot: internal error in item idx manager');
 404   end;
 405   it.slotIsUsed := false;
 406
 407   result := slot;
 408 end;
 409
 410
 411 // ////////////////////////////////////////////////////////////////////////// //
 412 procedure g_Items_Init ();
 413 var
 414   a, b: Integer;
 415 begin
 416   if gMapInfo.Height > gPlayerScreenSize.Y then a := gMapInfo.Height-gPlayerScreenSize.Y else a := gMapInfo.Height;
 417   if gMapInfo.Width > gPlayerScreenSize.X then b := gMapInfo.Width-gPlayerScreenSize.X else b := gMapInfo.Width;
 418   gMaxDist := Trunc(Hypot(a, b));
 419 end;
 420
 421
 422 procedure g_Items_Free ();
 423 var
 424   i: Integer;
 425 begin
 426   if (ggItems <> nil) then
 427   begin
 428     for i := 0 to High(ggItems) do ggItems[i].Animation.Free();
 429     ggItems := nil;
 430   end;
 431   freeIds.clear();
 432 end;
 433
 434
 435 function g_Items_Create (X, Y: Integer; ItemType: Byte;
 436            Fall, Respawnable: Boolean; AdjCoord: Boolean = False; ForcedID: Integer = -1): DWORD;
 437 var
 438   find_id: DWORD;
 439   ID: DWORD;
 440   it: PItem;
 441 begin
 442   if ForcedID < 0 then find_id := allocItem() else find_id := wantItemSlot(ForcedID);
 443
 444   //{$IF DEFINED(D2F_DEBUG)}e_WriteLog(Format('allocated item #%d', [Integer(find_id)]), MSG_NOTIFY);{$ENDIF}
 445
 446   it := @ggItems[find_id];
 447
 448   if (it.arrIdx <> Integer(find_id)) then raise Exception.Create('g_Items_Create: arrIdx inconsistency');
 449   //it.arrIdx := find_id;
 450   it.slotIsUsed := true;
 451
 452   it.ItemType := ItemType;
 453   it.Respawnable := Respawnable;
 454   if g_Game_IsServer and (ITEM_RESPAWNTIME = 0) then it.Respawnable := False;
 455   it.InitX := X;
 456   it.InitY := Y;
 457   it.RespawnTime := 0;
 458   it.Fall := Fall;
 459   it.alive := True;
 460   it.QuietRespawn := False;
 461
 462   g_Obj_Init(@it.Obj);
 463   it.Obj.X := X;
 464   it.Obj.Y := Y;
 465   it.Obj.Rect.Width := ITEMSIZE[ItemType][0];
 466   it.Obj.Rect.Height := ITEMSIZE[ItemType][1];
 467
 468   it.Animation := nil;
 469   it.SpawnTrigger := -1;
 470
 471   // Êîîðäèíàòû îòíîñèòåëüíî öåíòðà íèæíåãî ðåáðà
 472   if AdjCoord then
 473   begin
 474     with it^ do
 475     begin
 476       Obj.X := X - (Obj.Rect.Width div 2);
 477       Obj.Y := Y - Obj.Rect.Height;
 478       InitX := Obj.X;
 479       InitY := Obj.Y;
 480     end;
 481   end;
 482
 483   // Óñòàíîâêà àíèìàöèè
 484   case it.ItemType of
 485     ITEM_ARMOR_GREEN: if g_Frames_Get(ID, 'FRAMES_ITEM_ARMORGREEN') then it.Animation := TAnimation.Create(ID, True, 20);
 486     ITEM_ARMOR_BLUE: if g_Frames_Get(ID, 'FRAMES_ITEM_ARMORBLUE') then it.Animation := TAnimation.Create(ID, True, 20);
 487     ITEM_SPHERE_BLUE: if g_Frames_Get(ID, 'FRAMES_ITEM_BLUESPHERE') then it.Animation := TAnimation.Create(ID, True, 15);
 488     ITEM_SPHERE_WHITE: if g_Frames_Get(ID, 'FRAMES_ITEM_WHITESPHERE') then it.Animation := TAnimation.Create(ID, True, 20);
 489     ITEM_INVUL: if g_Frames_Get(ID, 'FRAMES_ITEM_INVUL') then it.Animation := TAnimation.Create(ID, True, 20);
 490     ITEM_INVIS: if g_Frames_Get(ID, 'FRAMES_ITEM_INVIS') then it.Animation := TAnimation.Create(ID, True, 20);
 491     ITEM_BOTTLE: if g_Frames_Get(ID, 'FRAMES_ITEM_BOTTLE') then it.Animation := TAnimation.Create(ID, True, 20);
 492     ITEM_HELMET: if g_Frames_Get(ID, 'FRAMES_ITEM_HELMET') then it.Animation := TAnimation.Create(ID, True, 20);
 493   end;
 494
 495   it.positionChanged();
 496
 497   result := find_id;
 498 end;
 499
 500
 501 procedure g_Items_Update ();
 502 var
 503   i, j, k: Integer;
 504   ID: DWord;
 505   Anim: TAnimation;
 506   m: Word;
 507   r, nxt: Boolean;
 508 begin
 509   if (ggItems = nil) then exit;
 510
 511   for i := 0 to High(ggItems) do
 512   begin
 513     if (ggItems[i].ItemType = ITEM_NONE) then continue;
 514
 515     with ggItems[i] do
 516     begin
 517       nxt := False;
 518
 519       if alive then
 520       begin
 521         if Fall then
 522         begin
 523           m := g_Obj_Move(@Obj, True, True);
 524           positionChanged(); // this updates spatial accelerators
 525
 526           // Ñîïðîòèâëåíèå âîçäóõà
 527           if gTime mod (GAME_TICK*2) = 0 then Obj.Vel.X := z_dec(Obj.Vel.X, 1);
 528
 529           // Åñëè âûïàë çà êàðòó
 530           if WordBool(m and MOVE_FALLOUT) then
 531           begin
 532             if SpawnTrigger = -1 then
 533             begin
 534               g_Items_Pick(i);
 535             end
 536             else
 537             begin
 538               g_Items_Remove(i);
 539               if g_Game_IsServer and g_Game_IsNet then MH_SEND_ItemDestroy(True, i);
 540             end;
 541             continue;
 542           end;
 543         end;
 544
 545         // Åñëè èãðîêè ïîáëèçîñòè
 546         if (gPlayers <> nil) then
 547         begin
 548           j := Random(Length(gPlayers))-1;
 549
 550           for k := 0 to High(gPlayers) do
 551           begin
 552             Inc(j);
 553             if j > High(gPlayers) then j := 0;
 554
 555             if (gPlayers[j] <> nil) and gPlayers[j].alive and g_Obj_Collide(@gPlayers[j].Obj, @Obj) then
 556             begin
 557               if g_Game_IsClient then continue;
 558
 559               if not gPlayers[j].PickItem(ItemType, Respawnable, r) then continue;
 560
 561               if g_Game_IsNet then MH_SEND_PlayerStats(gPlayers[j].UID);
 562
 563               {
 564                 Doom 2D: Original:
 565                 1. I_NONE,I_CLIP,I_SHEL,I_ROCKET,I_CELL,I_AMMO,I_SBOX,I_RBOX,I_CELP,I_BPACK,I_CSAW,I_SGUN,I_SGUN2,I_MGUN,I_LAUN,I_PLAS,I_BFG,I_GUN2
 566                 +2. I_MEGA,I_INVL,I_SUPER
 567                 3. I_STIM,I_MEDI,I_ARM1,I_ARM2,I_AQUA,I_KEYR,I_KEYG,I_KEYB,I_SUIT,I_RTORCH,I_GTORCH,I_BTORCH,I_GOR1,I_FCAN
 568               }
 569               g_Items_EmitPickupSoundAt(i, gPlayers[j].Obj.X, gPlayers[j].Obj.Y);
 570
 571               // Íàäî óáðàòü ñ êàðòû, åñëè ýòî íå êëþ÷, êîòîðûì íóæíî ïîäåëèòüñÿ ñ äðóãèì èãðîêîì
 572               if r then
 573               begin
 574                 if not Respawnable then g_Items_Remove(i) else g_Items_Pick(i);
 575                 if g_Game_IsNet then MH_SEND_ItemDestroy(False, i);
 576                 nxt := True;
 577                 break;
 578               end;
 579             end;
 580           end;
 581         end;
 582
 583         if nxt then continue;
 584       end;
 585
 586       if Respawnable and g_Game_IsServer then
 587       begin
 588         DecMin(RespawnTime, 0);
 589         if (RespawnTime = 0) and (not alive) then
 590         begin
 591           if not QuietRespawn then g_Sound_PlayExAt('SOUND_ITEM_RESPAWNITEM', InitX, InitY);
 592
 593           if g_Frames_Get(ID, 'FRAMES_ITEM_RESPAWN') then
 594           begin
 595             Anim := TAnimation.Create(ID, False, 4);
 596             g_GFX_OnceAnim(InitX+(Obj.Rect.Width div 2)-16, InitY+(Obj.Rect.Height div 2)-16, Anim);
 597             Anim.Free();
 598           end;
 599
 600           Obj.X := InitX;
 601           Obj.Y := InitY;
 602           Obj.Vel.X := 0;
 603           Obj.Vel.Y := 0;
 604           Obj.Accel.X := 0;
 605           Obj.Accel.Y := 0;
 606           positionChanged(); // this updates spatial accelerators
 607
 608           alive := true;
 609
 610           if g_Game_IsNet then MH_SEND_ItemSpawn(QuietRespawn, i);
 611           QuietRespawn := false;
 612         end;
 613       end;
 614
 615       if (Animation <> nil) then Animation.Update();
 616     end;
 617   end;
 618 end;
 619
 620
 621 procedure g_Items_Draw ();
 622 var
 623   i: Integer;
 624 begin
 625   if (ggItems = nil) then exit;
 626
 627   for i := 0 to High(ggItems) do
 628   begin
 629     if not ggItems[i].alive then continue;
 630
 631     with ggItems[i] do
 632     begin
 633       if (g_dbg_scale <> 1.0) or g_Collide(Obj.X, Obj.Y, Obj.Rect.Width, Obj.Rect.Height, sX, sY, sWidth, sHeight) then
 634       begin
 635         if (Animation = nil) then
 636         begin
 637           e_Draw(gItemsTexturesID[ItemType], Obj.X, Obj.Y, 0, true, false);
 638         end
 639         else
 640         begin
 641           Animation.Draw(Obj.X, Obj.Y, M_NONE);
 642         end;
 643
 644         if g_debug_Frames then
 645         begin
 646           e_DrawQuad(Obj.X+Obj.Rect.X,
 647                      Obj.Y+Obj.Rect.Y,
 648                      Obj.X+Obj.Rect.X+Obj.Rect.Width-1,
 649                      Obj.Y+Obj.Rect.Y+Obj.Rect.Height-1,
 650                      0, 255, 0);
 651         end;
 652       end;
 653     end;
 654   end;
 655 end;
 656
 657
 658 procedure g_Items_Pick (ID: DWORD);
 659 begin
 660   ggItems[ID].alive := false;
 661   ggItems[ID].RespawnTime := ITEM_RESPAWNTIME;
 662 end;
 663
 664
 665 procedure g_Items_Remove (ID: DWORD);
 666 var
 667   it: PItem;
 668   trig: Integer;
 669 begin
 670   if not g_Items_ValidId(ID) then raise Exception.Create('g_Items_Remove: invalid item id');
 671
 672   it := @ggItems[ID];
 673   if (it.arrIdx <> Integer(ID)) then raise Exception.Create('g_Items_Remove: arrIdx desync');
 674
 675   trig := it.SpawnTrigger;
 676
 677   releaseItem(ID);
 678
 679   if (trig > -1) then g_Triggers_DecreaseSpawner(trig);
 680 end;
 681
 682
 683 procedure g_Items_SaveState (var Mem: TBinMemoryWriter);
 684 var
 685   count, i: Integer;
 686   sig: DWORD;
 687 begin
 688   // Ñ÷èòàåì êîëè÷åñòâî ñóùåñòâóþùèõ ïðåäìåòîâ
 689   count := 0;
 690   if (ggItems <> nil) then
 691   begin
 692     for i := 0 to High(ggItems) do if (ggItems[i].ItemType <> ITEM_NONE) then Inc(count);
 693   end;
 694
 695   Mem := TBinMemoryWriter.Create((count+1) * 60);
 696
 697   // Êîëè÷åñòâî ïðåäìåòîâ
 698   Mem.WriteInt(count);
 699
 700   if (count = 0) then exit;
 701
 702   for i := 0 to High(ggItems) do
 703   begin
 704     if (ggItems[i].ItemType <> ITEM_NONE) then
 705     begin
 706       // Ñèãíàòóðà ïðåäìåòà
 707       sig := ITEM_SIGNATURE; // 'ITEM'
 708       Mem.WriteDWORD(sig);
 709       // Òèï ïðåäìåòà
 710       Mem.WriteByte(ggItems[i].ItemType);
 711       // Åñòü ëè ðåñïàóí
 712       Mem.WriteBoolean(ggItems[i].Respawnable);
 713       // Êîîðäèíàòû ðåñïóíà
 714       Mem.WriteInt(ggItems[i].InitX);
 715       Mem.WriteInt(ggItems[i].InitY);
 716       // Âðåìÿ äî ðåñïàóíà
 717       Mem.WriteWord(ggItems[i].RespawnTime);
 718       // Ñóùåñòâóåò ëè ýòîò ïðåäìåò
 719       Mem.WriteBoolean(ggItems[i].alive);
 720       // Ìîæåò ëè îí ïàäàòü
 721       Mem.WriteBoolean(ggItems[i].Fall);
 722       // Èíäåêñ òðèããåðà, ñîçäàâøåãî ïðåäìåò
 723       Mem.WriteInt(ggItems[i].SpawnTrigger);
 724       // Îáúåêò ïðåäìåòà
 725       Obj_SaveState(@ggItems[i].Obj, Mem);
 726     end;
 727   end;
 728 end;
 729
 730
 731 procedure g_Items_LoadState (var Mem: TBinMemoryReader);
 732 var
 733   count, i, a: Integer;
 734   sig: DWORD;
 735   b: Byte;
 736 begin
 737   if (Mem = nil) then exit;
 738
 739   g_Items_Free();
 740
 741   // Êîëè÷åñòâî ïðåäìåòîâ
 742   Mem.ReadInt(count);
 743
 744   if (count = 0) then Exit;
 745
 746   for a := 0 to count-1 do
 747   begin
 748     // Ñèãíàòóðà ïðåäìåòà
 749     Mem.ReadDWORD(sig);
 750     if (sig <> ITEM_SIGNATURE) then raise EBinSizeError.Create('g_Items_LoadState: Wrong Item Signature'); // 'ITEM'
 751     // Òèï ïðåäìåòà
 752     Mem.ReadByte(b);
 753     // Ñîçäàåì ïðåäìåò
 754     i := g_Items_Create(0, 0, b, False, False);
 755     // Åñòü ëè ðåñïàóí
 756     Mem.ReadBoolean(ggItems[i].Respawnable);
 757     // Êîîðäèíàòû ðåñïóíà
 758     Mem.ReadInt(ggItems[i].InitX);
 759     Mem.ReadInt(ggItems[i].InitY);
 760     // Âðåìÿ äî ðåñïàóíà
 761     Mem.ReadWord(ggItems[i].RespawnTime);
 762     // Ñóùåñòâóåò ëè ýòîò ïðåäìåò
 763     Mem.ReadBoolean(ggItems[i].alive);
 764     // Ìîæåò ëè îí ïàäàòü
 765     Mem.ReadBoolean(ggItems[i].Fall);
 766     // Èíäåêñ òðèããåðà, ñîçäàâøåãî ïðåäìåò
 767     Mem.ReadInt(ggItems[i].SpawnTrigger);
 768     // Îáúåêò ïðåäìåòà
 769     Obj_LoadState(@ggItems[i].Obj, Mem);
 770   end;
 771 end;
 772
 773
 774 procedure g_Items_RestartRound ();
 775 var
 776   i: Integer;
 777   it: PItem;
 778 begin
 779   for i := 0 to High(ggItems) do
 780   begin
 781     it := @ggItems[i];
 782     if it.Respawnable then
 783     begin
 784       it.QuietRespawn := True;
 785       it.RespawnTime := 0;
 786     end
 787     else
 788     begin
 789       g_Items_Remove(i);
 790       if g_Game_IsNet then MH_SEND_ItemDestroy(True, i);
 791     end;
 792   end;
 793 end;
 794
 795
 796 function g_Items_ForEachAlive (cb: TItemEachAliveCB; backwards: Boolean=false): Boolean;
 797 var
 798   idx: Integer;
 799 begin
 800   result := false;
 801   if (ggItems = nil) or not assigned(cb) then exit;
 802
 803   if backwards then
 804   begin
 805     for idx := High(ggItems) downto 0 do
 806     begin
 807       if ggItems[idx].alive then
 808       begin
 809         result := cb(@ggItems[idx]);
 810         if result then exit;
 811       end;
 812     end;
 813   end
 814   else
 815   begin
 816     for idx := 0 to High(ggItems) do
 817     begin
 818       if ggItems[idx].alive then
 819       begin
 820         result := cb(@ggItems[idx]);
 821         if result then exit;
 822       end;
 823     end;
 824   end;
 825 end;
 826
 827
 828 // ////////////////////////////////////////////////////////////////////////// //
 829 procedure g_Items_EmitPickupSound (idx: Integer);
 830 var
 831   it: PItem;
 832 begin
 833   if not g_Items_ValidId(idx) then exit;
 834   it := @ggItems[idx];
 835   g_Items_EmitPickupSoundAt(idx, it.Obj.X, it.Obj.Y);
 836 end;
 837
 838 procedure g_Items_EmitPickupSoundAt (idx, x, y: Integer);
 839 var
 840   it: PItem;
 841 begin
 842   if not g_Items_ValidId(idx) then exit;
 843
 844   it := @ggItems[idx];
 845   if gSoundEffectsDF then
 846   begin
 847     if it.ItemType in [ITEM_SPHERE_BLUE, ITEM_SPHERE_WHITE, ITEM_INVUL,
 848                        ITEM_INVIS, ITEM_MEDKIT_BLACK, ITEM_JETPACK] then
 849     begin
 850       g_Sound_PlayExAt('SOUND_ITEM_GETRULEZ', x, y);
 851     end
 852     else if it.ItemType in [ITEM_WEAPON_SAW, ITEM_WEAPON_PISTOL, ITEM_WEAPON_SHOTGUN1, ITEM_WEAPON_SHOTGUN2,
 853                             ITEM_WEAPON_CHAINGUN, ITEM_WEAPON_ROCKETLAUNCHER, ITEM_WEAPON_PLASMA,
 854                             ITEM_WEAPON_BFG, ITEM_WEAPON_SUPERPULEMET, ITEM_WEAPON_FLAMETHROWER,
 855                             ITEM_AMMO_BACKPACK] then
 856     begin
 857       g_Sound_PlayExAt('SOUND_ITEM_GETWEAPON', x, y);
 858     end
 859     else
 860     begin
 861       g_Sound_PlayExAt('SOUND_ITEM_GETITEM', x, y);
 862     end;
 863   end
 864   else
 865   begin
 866     if it.ItemType in [ITEM_SPHERE_BLUE, ITEM_SPHERE_WHITE, ITEM_SUIT,
 867                        ITEM_MEDKIT_BLACK, ITEM_INVUL, ITEM_INVIS, ITEM_JETPACK] then
 868     begin
 869       g_Sound_PlayExAt('SOUND_ITEM_GETRULEZ', x, y);
 870     end
 871     else if it.ItemType in [ITEM_WEAPON_SAW, ITEM_WEAPON_PISTOL, ITEM_WEAPON_SHOTGUN1, ITEM_WEAPON_SHOTGUN2,
 872                             ITEM_WEAPON_CHAINGUN, ITEM_WEAPON_ROCKETLAUNCHER, ITEM_WEAPON_PLASMA,
 873                             ITEM_WEAPON_BFG, ITEM_WEAPON_SUPERPULEMET, ITEM_WEAPON_FLAMETHROWER] then
 874     begin
 875       g_Sound_PlayExAt('SOUND_ITEM_GETWEAPON', x, y);
 876     end
 877     else
 878     begin
 879       g_Sound_PlayExAt('SOUND_ITEM_GETITEM', x, y);
 880     end;
 881   end;
 882 end;
 883
 884
 885 procedure g_Items_AddDynLights();
 886 var
 887   f: Integer;
 888   it: PItem;
 889 begin
 890   for f := 0 to High(ggItems) do
 891   begin
 892     it := @ggItems[f];
 893     if not it.alive then continue;
 894     case it.ItemType of
 895       ITEM_KEY_RED: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 24,  1.0, 0.0, 0.0, 0.6);
 896       ITEM_KEY_GREEN: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 24,  0.0, 1.0, 0.0, 0.6);
 897       ITEM_KEY_BLUE: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 24,  0.0, 0.0, 1.0, 0.6);
 898       ITEM_ARMOR_GREEN: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 42,  0.0, 1.0, 0.0, 0.6);
 899       ITEM_ARMOR_BLUE: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 42,  0.0, 0.0, 1.0, 0.6);
 900       ITEM_SPHERE_BLUE: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 32,  0.0, 1.0, 0.0, 0.6);
 901       ITEM_SPHERE_WHITE: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 32,  1.0, 1.0, 1.0, 0.6);
 902       ITEM_INVUL: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 32,  1.0, 0.0, 0.0, 0.6);
 903       ITEM_INVIS: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 32,  1.0, 1.0, 0.0, 0.6);
 904       ITEM_BOTTLE: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 16,  0.0, 0.0, 0.8, 0.6);
 905       ITEM_HELMET: g_AddDynLight(it.Obj.X+(it.Obj.Rect.Width div 2), it.Obj.Y+(it.Obj.Rect.Height div 2), 16,  0.0, 0.8, 0.0, 0.6);
 906     end;
 907   end;
 908 end;
 909
 910
 911 end.