dengapi.d

   1 /* DooM2D: Midnight on the Firing Line
   2  * coded by Ketmar // Invisible Vector <ketmar@ketmar.no-ip.org>
   3  * Understanding is not required. Only obedience.
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  17  */
  18 module dengapi is aliced;
  19
  20 private:
  21 import core.atomic;
  22 import core.thread;
  23 import core.time;
  24
  25 import iv.glbinds;
  26 import glutils;
  27 import console;
  28 import wadarc;
  29
  30 import d2dmap;
  31 import d2dadefs;
  32 import d2dgfx;
  33 import dacs;
  34
  35 import d2dunigrid;
  36 import render;
  37
  38
  39 // ////////////////////////////////////////////////////////////////////////// //
  40 private extern (C) void _d_print_throwable (Throwable t);
  41
  42
  43 // ////////////////////////////////////////////////////////////////////////// //
  44 import arsd.color;
  45 import arsd.png;
  46
  47
  48 // ////////////////////////////////////////////////////////////////////////// //
  49 public void addInternalActorFields () {
  50   // &0xffff: position in drawlist
  51   // (>>16)&0xff: drawlist index
  52   //Actor.addField("0drawlistpos", Actor.Field.Type.Uint);
  53 }
  54
  55
  56 // ////////////////////////////////////////////////////////////////////////// //
  57 public {
  58   enum PLK_UP    = (1<<0);
  59   enum PLK_DOWN  = (1<<1);
  60   enum PLK_LEFT  = (1<<2);
  61   enum PLK_RIGHT = (1<<3);
  62   enum PLK_FIRE  = (1<<4);
  63   enum PLK_JUMP  = (1<<5);
  64   enum PLK_USE   = (1<<6);
  65 }
  66
  67 __gshared uint plrKeysLast;
  68 __gshared uint plrKeyState;
  69
  70
  71 public void plrKeyDown (uint plidx, uint mask) {
  72   if (mask == 0 || plidx > 0) return;
  73   plrKeysLast |= mask;
  74   plrKeyState |= mask;
  75 }
  76
  77
  78 public void plrKeyUp (uint plidx, uint mask) {
  79   if (mask == 0 || plidx > 0) return;
  80   plrKeyState &= ~mask;
  81 }
  82
  83
  84 public void plrKeyUpDown (uint plidx, uint mask, bool down) {
  85   if (down) plrKeyDown(plidx, mask); else plrKeyUp(plidx, mask);
  86 }
  87
  88
  89 void plrKeysFix (uint plidx) {
  90   if (plidx > 0) return;
  91   //conwritefln!"plrKeyState=0x%02x; plrKeysLast=0x%02x"(plrKeyState, plrKeysLast);
  92   foreach (uint n; 0..12) {
  93     if ((plrKeyState&(1<<n)) == 0) plrKeysLast &= ~(1<<n);
  94   }
  95 }
  96
  97
  98 // ////////////////////////////////////////////////////////////////////////// //
  99 void updateActorClasses (int iteration) {
 100   foreach (string ctype; dacsClassTypes(iteration)) {
 101     foreach (auto mod; dacsClassModules(ctype, iteration)) {
 102       auto adef = registerActorDef(mod.rmoduletype.classtype, mod.rmoduletype.classname);
 103       conwriteln("found info for actor '", mod.rmoduletype.classtype, ":", mod.rmoduletype.classname, "'");
 104       {
 105         auto animInitFn = FuncPool.findByFQMG(mod.name~".initializeAnim", ":void");
 106         if (animInitFn !is null) adef.setAnimInitFunc(animInitFn);
 107       }
 108       {
 109         auto initFn = FuncPool.findByFQMG(mod.name~".initialize", ":void:Actor");
 110         if (initFn !is null) adef.setInitFunc(initFn);
 111       }
 112       {
 113         auto thinkFn = FuncPool.findByFQMG(mod.name~".think", ":void:Actor");
 114         if (thinkFn !is null) adef.setThinkFunc(thinkFn);
 115       }
 116     }
 117   }
 118 }
 119
 120
 121 // ////////////////////////////////////////////////////////////////////////// //
 122 private string modLoader (string modname) {
 123   static string getTextFile (string fname) {
 124     try {
 125       auto res = loadTextFile(fname);
 126       conwriteln("loading DACS module file '", fname, "' (", res.length, " bytes)");
 127       if (res is null) res = "";
 128       return res;
 129     } catch (Exception) {}
 130     return null;
 131   }
 132
 133   string res;
 134
 135   //res = getTextFile(modname~".dacs");
 136   //if (res !is null) return res;
 137
 138   res = getTextFile("scripts/"~modname~".dacs");
 139   if (res !is null) return res;
 140   assert(res is null);
 141
 142   string[] parts = ["scripts"];
 143   string mn = modname;
 144   while (mn.length > 0) {
 145     int pos = 0;
 146     if (mn[0] >= 'A' && mn[0] <= 'Z') ++pos;
 147     while (pos < mn.length && (mn[pos] < 'A' || mn[pos] > 'Z')) ++pos;
 148     if (mn[0] >= 'A' && mn[0] <= 'Z') {
 149       parts ~= cast(char)(mn[0]+32)~mn[1..pos];
 150     } else {
 151       parts ~= mn[0..pos];
 152     }
 153     mn = mn[pos..$];
 154   }
 155   {
 156     import std.array : join;
 157     string path = parts.join("/")~".dacs";
 158     res = getTextFile(path);
 159     if (res !is null) return res;
 160     assert(res is null);
 161   }
 162   assert(res is null);
 163   throw new Exception("module '"~modname~"' not found");
 164 }
 165
 166
 167 __gshared int modIteration = 0;
 168
 169 public void loadWadScripts () {
 170   if (moduleLoader is null) moduleLoader = (string modname) => modLoader(modname);
 171   string[] mainmods;
 172   try {
 173     import std.array : split;
 174     auto t = loadTextFile("scripts/dacsmain.txt");
 175     foreach (string line; t.split('\n')) {
 176       while (line.length && line[0] <= ' ') line = line[1..$];
 177       if (line.length == 0 || line[0] == ';') continue;
 178       while (line.length && line[$-1] <= ' ') line = line[0..$-1];
 179       mainmods ~= line;
 180     }
 181   } catch (Exception e) { return; }
 182   try {
 183     //conwriteln("loading main DACS module '", mainmod, "'");
 184     auto iter = modIteration++;
 185     conwriteln("iteration=", iter);
 186     foreach (string mod; mainmods) {
 187       parseModule(mod, iter);
 188     }
 189     conwriteln("calling parseComplete; iteration=", iter);
 190     parseComplete();
 191     updateActorClasses(iter);
 192   } catch (CompilerException e) {
 193     _d_print_throwable(e);
 194     conwriteln("PARSE ERROR: ", e.file, " at ", e.line);
 195     conwriteln(e.toString);
 196     assert(0);
 197   }
 198 }
 199
 200
 201 public void scriptLoadingComplete () {
 202   setupDAPI();
 203   dacsFinalizeCompiler();
 204 }
 205
 206
 207 // ////////////////////////////////////////////////////////////////////////// //
 208 public __gshared LevelMap map;
 209 //public __gshared DACSVM dvm;
 210 public __gshared uint prngSyncSeed = 0x29a;
 211 public __gshared uint prngSeed = 0x29a; // unsynced
 212
 213
 214 // ////////////////////////////////////////////////////////////////////////// //
 215 // Park-Miller-Carta Pseudo-Random Number Generator, based on David G. Carta paper
 216 // 31 bit of randomness
 217 // seed is previous result, as usual
 218 public uint prngR31next (uint seed) {
 219   if (seed == 0) seed = 0x29a;
 220   uint lo = 16807*(seed&0xffff);
 221   uint hi = 16807*(seed>>16);
 222   lo += (hi&0x7fff)<<16;
 223   lo += hi>>15;
 224   //if (lo > 0x7fffffff) lo -= 0x7fffffff; // should be >=, actually
 225   lo = (lo&0x7FFFFFFF)+(lo>>31); // same as previous code, but branch-less
 226   return lo;
 227 }
 228
 229
 230 // "synced" random, using common seed for all players
 231 public uint syncrandu31 () {
 232   pragma(inline, true);
 233   return (prngSyncSeed = prngR31next(prngSyncSeed));
 234 }
 235
 236
 237 // "unsynced" random, seed isn't saved
 238 public uint unsyncrandu31 () {
 239   pragma(inline, true);
 240   return (prngSeed = prngR31next(prngSeed));
 241 }
 242
 243
 244 // ////////////////////////////////////////////////////////////////////////// //
 245 version(dacs_use_vm) {
 246 // this is VAT function, argument order is reversed
 247 void doWrite(bool donl) (FuncPool.FuncInfo fi, DACSVM vm) {
 248   import std.stdio;
 249   auto count = vm.popInt();
 250   while (count-- > 0) {
 251     auto type = vm.popInt();
 252     switch (cast(VATArgType)type) {
 253       case VATArgType.Int: write(vm.popInt()); break;
 254       case VATArgType.Uint: write(vm.popUint()); break;
 255       case VATArgType.Float: write(vm.popFloat()); break;
 256       case VATArgType.StrId: write(StrId(vm.popUint()).get); break;
 257       case VATArgType.ActorId: write("<actor>"); vm.popUint(); break; //TODO
 258       default: write("<invalid-type>"); vm.popUint(); break; //TODO
 259     }
 260   }
 261   static if (donl) writeln();
 262   // push dummy return value
 263   vm.pushInt(0);
 264 }
 265 } else {
 266 extern(C) void doWrite(bool donl) (uint argc, ...) {
 267   import core.vararg;
 268   import std.stdio;
 269   mainloop: while (argc >= 2) {
 270     argc -= 2;
 271     int tp = va_arg!int(_argptr);
 272     switch (tp) {
 273       case VATArgType.Int:
 274         auto v = va_arg!int(_argptr);
 275         write(v);
 276         break;
 277       case VATArgType.Uint:
 278         auto v = va_arg!uint(_argptr);
 279         write(v);
 280         break;
 281       case VATArgType.Float:
 282         auto v = va_arg!float(_argptr);
 283         write(v);
 284         break;
 285       case VATArgType.StrId:
 286         auto v = StrId(va_arg!uint(_argptr)).get;
 287         write(v);
 288         break;
 289       case VATArgType.ActorId:
 290         auto v = ActorId(va_arg!uint(_argptr));
 291         write("<actor:", v.valid, ":", v.id, ">");
 292         //write("<actor>");
 293         break;
 294       default: write("<invalid-type>"); break mainloop;
 295     }
 296   }
 297   static if (donl) writeln();
 298 }
 299 }
 300
 301
 302 // ////////////////////////////////////////////////////////////////////////// //
 303 void animClearFrames (StrId classtype, StrId classname, StrId state) {
 304   auto adef = findActorDef(classtype.get, classname.get);
 305   if (adef is null) throw new Exception("animClearFrames: actor '"~classtype.get~":"~classname.get~"' not found!");
 306   adef.clearFrames(state);
 307 }
 308
 309
 310 void animAddFrame (StrId classtype, StrId classname, StrId state, uint dir, StrId sprname) {
 311   auto adef = findActorDef(classtype.get, classname.get);
 312   if (adef is null) throw new Exception("animAddFrame: actor '"~classtype.get~":"~classname.get~"' not found!");
 313   if (dir != 0) dir = 1; //TODO: process mirror flag here
 314   adef.addFrame(state, dir, sprname);
 315 }
 316
 317
 318 // ////////////////////////////////////////////////////////////////////////// //
 319 void setupDAPI () {
 320   conwriteln("setting up D API");
 321
 322   FuncPool["write"] = &doWrite!false;
 323   FuncPool["writeln"] = &doWrite!true;
 324
 325   FuncPool["syncrandu31"] = &syncrandu31;
 326
 327   FuncPool["animClearFrames"] = &animClearFrames;
 328   FuncPool["animAddFrame"] = &animAddFrame;
 329
 330   FuncPool["actorSetAnimation"] = function void (ActorId me, StrId state) {
 331     if (!me.valid) return;
 332     if (auto adef = findActorDef(me.classtype!string, me.classname!string)) {
 333       me.zAnimstate = state;
 334       me.zAnimidx = 0;
 335     }
 336   };
 337
 338   //FuncPool["getPlayer"] = function ActorId () { assert(0); };
 339   //FuncPool["isPlayer"] = function int (ActorId me) { return (me == players.ptr[0] ? 1 : 0); };
 340
 341   FuncPool["getPlayerCount"] = function int () => 1;
 342
 343   FuncPool["getPlayerActor"] = function ActorId (uint pnum) {
 344     if (pnum == 1) return players.ptr[0];
 345     return ActorId(0);
 346   };
 347
 348   FuncPool["getPlayerButtons"] = function uint (uint pidx) { return (pidx == 1 ? plrKeysLast : 0); };
 349
 350   FuncPool["mapGetTypeTile"] = function int (int x, int y) {
 351     return (map !is null && x >= 0 && y >= 0 && x < map.width && y < map.height ? map.tiles.ptr[LevelMap.Type].ptr[y*map.width+x] : 0);
 352   };
 353
 354   FuncPool["mapGetTile"] = function int (uint layer, int x, int y) {
 355     return (map !is null && x >= 0 && y >= 0 && x < map.width && y < map.height && layer >= 0 && layer <= 1 ? map.tiles.ptr[LevelMap.Front+layer].ptr[y*map.width+x] : 0);
 356   };
 357
 358   FuncPool["mapSetTypeTile"] = function void (int x, int y, int tid) {
 359     if (map is null || x < 0 || y < 0 || x >= map.width || y >= map.height || tid < 0 || tid > 255) return;
 360     auto p = map.tiles.ptr[LevelMap.Type].ptr+y*map.width+x;
 361     if (*p != tid) {
 362       *p = cast(ubyte)tid;
 363       import render : mapDirty;
 364       mapDirty((1<<LevelMap.Type)|(1<<LevelMap.LightMask));
 365     }
 366   };
 367
 368   FuncPool["mapSetTile"] = function void (uint layer, int x, int y, int tid) {
 369     if (map is null || layer < 0 || layer > 1 || x < 0 || y < 0 || x >= map.width || y >= map.height || tid < 0 || tid > 255) return;
 370     auto p = map.tiles.ptr[LevelMap.Front+layer].ptr+y*map.width+x;
 371     if (*p != tid) {
 372       *p = cast(ubyte)tid;
 373       import render : mapDirty;
 374       if (layer == 0) {
 375         // front
 376         mapDirty((1<<LevelMap.Front)|(1<<LevelMap.AllLiquids)|(1<<LevelMap.LiquidMask));
 377       } else {
 378         // back
 379         mapDirty((1<<LevelMap.Back)|(1<<LevelMap.AllLiquids)|(1<<LevelMap.LiquidMask));
 380       }
 381     }
 382   };
 383
 384   FuncPool["mapGetWaterTexture"] = function int (int fg) {
 385     if (fg < 0 || fg >= map.wallnames.length) return 0;
 386     switch (map.wallnames.ptr[fg]) {
 387       case "_water_0": return 1;
 388       case "_water_1": return 2;
 389       case "_water_2": return 3;
 390       default:
 391     }
 392     return 0;
 393   };
 394
 395   FuncPool["getMapViewHeight"] = function int () {
 396     import render : vlWidth, vlHeight, getScale;
 397     return vlHeight/getScale;
 398   };
 399
 400   FuncPool["setMapViewPos"] = function void (int x, int y) {
 401     import render : setMapViewPos;
 402     setMapViewPos(x, y);
 403   };
 404
 405   FuncPool["actorsOverlap"] = function int (ActorId a, ActorId b) { return (actorsOverlap(a, b) ? 1 : 0); };
 406
 407   FuncPool["actorRemove"] = function void (ActorId me) { Actor.remove(me); };
 408
 409   FuncPool["rewindTouchList"] = &rewindTouchList;
 410   FuncPool["getNextTouchListItem"] = &getNextTouchListItem;
 411
 412   FuncPool["getCheatNoDoors"] = function int () { import render : cheatNoDoors; return (cheatNoDoors ? 1 : 0); };
 413
 414   FuncPool["addMessage"] = function void (string text, int pause, bool noreplace) {
 415     import render : postAddMessage;
 416     postAddMessage(text, pause, noreplace);
 417   };
 418
 419   import d2dparts : dotAddBlood, dotAddSpark, dotAddWater;
 420
 421   FuncPool["dotAddBlood"] = &dotAddBlood;
 422   FuncPool["dotAddSpark"] = &dotAddSpark;
 423   FuncPool["dotAddWater"] = &dotAddWater;
 424   /*
 425     function void (int x, int y, int xv, int yv, int n, int color) {
 426       conwriteln("dotAddWater: x=", x, "; y=", y, "; xv=", xv, "; yv=", yv, "; n=", n, "; color=", color);
 427       dotAddWater(x, y, xv, yv, n, color);
 428     };
 429   */
 430 }
 431
 432
 433 public void registerAPI () {
 434   //Actor.actorSize += 256;
 435   conwriteln("actor size is ", Actor.actorSize, " bytes");
 436
 437   version(dacs_use_vm) FuncPool.vm = new DACSVM();
 438   //dvm = new DACSVM();
 439
 440   // initialize actor animation
 441   ActorDef.forEach((adef) => adef.callAnimInit());
 442
 443   conwriteln("API registered");
 444 }
 445
 446
 447 // ////////////////////////////////////////////////////////////////////////// //
 448 mixin(Actor.FieldGetMixin!("classtype", StrId)); // fget_classtype
 449 mixin(Actor.FieldGetMixin!("classname", StrId)); // fget_classname
 450 mixin(Actor.FieldGetMixin!("x", int));
 451 mixin(Actor.FieldGetMixin!("y", int));
 452 mixin(Actor.FieldGetMixin!("dir", uint));
 453 mixin(Actor.FieldGetMixin!("height", int));
 454 mixin(Actor.FieldGetMixin!("radius", int));
 455 mixin(Actor.FieldGetMixin!("flags", uint));
 456 mixin(Actor.FieldGetMixin!("zAnimstate", StrId));
 457 mixin(Actor.FieldGetMixin!("zAnimidx", int));
 458
 459 mixin(Actor.FieldSetMixin!("zAnimidx", int));
 460
 461
 462 public bool actorsOverlap (ActorId a, ActorId b) {
 463   if (!a.valid || !b.valid) return false;
 464   if (a.id == b.id) return false; // no self-overlap
 465
 466   int ax = a.fget_x;
 467   int bx = b.fget_x;
 468   int ar = a.fget_radius;
 469   int br = b.fget_radius;
 470
 471   if (ax-ar > bx+br || ax+ar < bx-br) return false;
 472
 473   int ay = a.fget_y;
 474   int by = b.fget_y;
 475   int ah = a.fget_height;
 476   int bh = b.fget_height;
 477
 478   //return (ay > by-bh && ay-ah < by);
 479   return (by-bh <= ay && by >= ay-ah);
 480 }
 481
 482
 483 // ////////////////////////////////////////////////////////////////////////// //
 484 public __gshared ActorId[2] players;
 485
 486
 487 public void loadAllMonsterGraphics () {
 488   ActorDef.forEach((adef) {
 489     conwriteln("loading graphics for '", adef.classtype.get, ":", adef.classname.get, "'");
 490     adef.loadGraphics();
 491   });
 492   //Actor.dumpActors();
 493   realiseSpriteAtlases();
 494 }
 495
 496
 497 public void loadMapMonsters () {
 498   assert(map !is null);
 499   ugClear();
 500   players[] = ActorId(0);
 501   //conwriteln(players[0].valid, "; ", players[0].id);
 502   foreach (ref thing; map.things) {
 503     if (thing.dmonly) continue;
 504     auto did = (thing.type&0x7fff) in d2dactordefsById;
 505     if (did !is null && did.classtype == "playerstart") {
 506       if ((thing.type&0x7fff) == 1 || (thing.type&0x7fff) == 2) {
 507         int pnum = thing.type-1;
 508         if (!players[pnum].valid) {
 509           auto aid = Actor.alloc;
 510           aid.classtype = StrPool.intern("monster");
 511           aid.classname = StrPool.intern("Player");
 512           aid.plrnum = cast(uint)(pnum+1);
 513           aid.state = StrPool.MNST_SLEEP;
 514           aid.x = cast(int)thing.x;
 515           aid.y = cast(int)thing.y;
 516           aid.dir = cast(uint)(thing.right ? 1 : 0);
 517           if (pnum == 0) aid.flags = aid.flags!uint|AF_CAMERACHICK;
 518           auto adef = findD2DActorDef(thing.type);
 519           if (adef is null) assert(0);
 520           adef.callInit(aid);
 521           if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 522           players[pnum] = aid;
 523           conwriteln("player #", pnum+1, " aid is ", aid.id);
 524         }
 525       }
 526       continue;
 527     }
 528     auto adef = findD2DActorDef(thing.type&0x7fff);
 529     if (adef is null) {
 530       if (did !is null) {
 531         conwriteln("ignoring D2D thing '", did.classtype.get, ":", did.classname.get, "'");
 532       } else {
 533         conwriteln("ignoring unknown D2D thing with mapid ", thing.type);
 534       }
 535       continue;
 536     }
 537     // create actor and initialize it
 538     auto aid = Actor.alloc;
 539     aid.classtype = StrPool.intern(adef.classtype);
 540     aid.classname = StrPool.intern(adef.classname);
 541     //conwriteln("found '", aid.classtype.get, ":", aid.classname.get, "'");
 542     if (did !is null) {
 543       assert(did.classtype == adef.classtype);
 544       assert(did.classname == adef.classname);
 545       conwriteln("mapid=", thing.type, "; ", adef.classtype, ":", adef.classname, "; id=", aid.id);
 546       assert(aid.classtype!string == adef.classtype);
 547       assert(aid.classname!string == adef.classname);
 548     } else {
 549       assert(0);
 550     }
 551     aid.state = StrPool.MNST_SLEEP;
 552     aid.x = cast(int)thing.x;
 553     aid.y = cast(int)thing.y;
 554     aid.dir = cast(uint)(thing.right ? 1 : 0);
 555     if (thing.type&0x8000) aid.flags = aid.flags!uint|AF_NOGRAVITY;
 556     //if (aid.classtype!string == "item" && aid.x!int < 64) { aid.x = 92; aid.y = aid.y!int-16; conwriteln("!!!"); }
 557     adef.callInit(aid);
 558     if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 559   }
 560
 561   // create switches
 562   foreach (ref sw; map.switches) {
 563     if (sw.type == 0) continue; // just in case
 564     auto swname = getD2DSwitchClassName(sw.type);
 565     if (swname.length == 0) {
 566       conwriteln("unknown switch type ", sw.type);
 567       continue;
 568     }
 569     if (auto adef = findActorDef("switch", swname)) {
 570       auto aid = Actor.alloc;
 571       aid.classtype = StrPool.intern("switch");
 572       aid.classname = StrPool.intern(swname);
 573       // nocollision, 'cause collision checking will be processed in switch thinker, but other actors should not touch switches
 574       aid.flags = AF_NOCOLLISION|AF_NOGRAVITY|AF_NOONTOUCH|AF_NODRAW|AF_NOLIGHT|AF_NOANIMATE;
 575       aid.x = sw.x*8;
 576       aid.y = sw.y*8;
 577       aid.switchabf = (sw.a<<16)|(sw.b<<8)|sw.flags;
 578       adef.callInit(aid);
 579       if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid); // just in case
 580     } else {
 581       conwriteln("switch definition 'switch:", swname, "' not found");
 582     }
 583   }
 584
 585   conwriteln("initial snapshot size: ", Actor.snapshotSize, " bytes");
 586 }
 587
 588
 589 // ////////////////////////////////////////////////////////////////////////// //
 590 __gshared uint[65536] touchList; // aids
 591 __gshared uint[] realTouchList;
 592 __gshared uint realTouchListIndex = uint.max;
 593 __gshared ActorId curThinkingActor;
 594 __gshared bool touchListAllowed = false;
 595
 596
 597 // dacs API
 598 void rewindTouchList () {
 599   if (!touchListAllowed) return;
 600   realTouchListIndex = 0;
 601   realTouchList = ugActorHitList(curThinkingActor, touchList[]);
 602 }
 603
 604
 605 // dacs API
 606 ActorId getNextTouchListItem () {
 607   if (!touchListAllowed) return ActorId(0);
 608   if (realTouchListIndex == uint.max) rewindTouchList();
 609   while (realTouchListIndex < realTouchList.length) {
 610     auto aid = ActorId(realTouchList.ptr[realTouchListIndex]);
 611     ++realTouchListIndex;
 612     if (aid.valid && (aid.flags!uint&AF_NOONTOUCH) == 0) return aid;
 613   }
 614   return ActorId(0);
 615 }
 616
 617
 618 public void doActorsThink () {
 619   //FIXME
 620   //static uint fflags = uint.max;
 621   //if (fflags == uint.max) fflags = Actor.fields["flags"].ofs;
 622
 623   // we have too much memory!
 624   __gshared uint[65536] validActorsList;
 625
 626   touchListAllowed = true;
 627   scope(exit) touchListAllowed = false;
 628   foreach (uint xid; Actor.getValidList(validActorsList[])) {
 629     auto me = ActorId(xid);
 630     if (me.valid) {
 631       auto flags = me.fget_flags;
 632       if ((flags&AF_NOCOLLISION) == 0) ugActorModify!false(me); // remove from grid
 633       if (auto adef = findActorDef(me)) {
 634         if ((flags&AF_NOTHINK) == 0) {
 635           realTouchListIndex = uint.max;
 636           curThinkingActor = me;
 637           adef.callThink(me);
 638           //if (me.x!int < 32) conwriteln("actor: ", me.id, "; attLightRGBX=", me.attLightRGBX!uint);
 639           if (!me.valid) continue; // we are dead
 640           flags = me.fget_flags; // in case script updated flags
 641         }
 642         if ((flags&AF_NOANIMATE) == 0) {
 643           int aidx = me.fget_zAnimidx;
 644           int nidx = adef.nextAnimIdx(me.fget_zAnimstate, me.fget_dir, aidx);
 645           //conwriteln("actor ", me.id, " (", me.classtype!string, me.classname!string, "): state=", me.zAnimstate!string, "; aidx=", aidx, "; nidx=", nidx);
 646           me.fset_zAnimidx = nidx;
 647           //assert(me.fget_zAnimidx == nidx);
 648         }
 649         // put back to grid
 650         if ((flags&AF_NOCOLLISION) == 0) ugActorModify!true(me);
 651       }
 652     }
 653   }
 654   plrKeysFix(0);
 655   //{ import std.stdio : stdout; stdout.writeln("========================================="); }
 656   //Actor.dumpActors();
 657 }