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