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
  37
  38 // ////////////////////////////////////////////////////////////////////////// //
  39 private extern (C) void _d_print_throwable (Throwable t);
  40
  41
  42 // ////////////////////////////////////////////////////////////////////////// //
  43 import arsd.color;
  44 import arsd.png;
  45
  46
  47 // ////////////////////////////////////////////////////////////////////////// //
  48 public {
  49   enum PLK_UP    = (1<<0);
  50   enum PLK_DOWN  = (1<<1);
  51   enum PLK_LEFT  = (1<<2);
  52   enum PLK_RIGHT = (1<<3);
  53   enum PLK_FIRE  = (1<<4);
  54   enum PLK_JUMP  = (1<<5);
  55   enum PLK_USE   = (1<<6);
  56 }
  57
  58 __gshared uint plrKeysLast;
  59 __gshared uint plrKeyState;
  60
  61
  62 public void plrKeyDown (uint plidx, uint mask) {
  63   if (mask == 0 || plidx > 0) return;
  64   plrKeysLast |= mask;
  65   plrKeyState |= mask;
  66 }
  67
  68
  69 public void plrKeyUp (uint plidx, uint mask) {
  70   if (mask == 0 || plidx > 0) return;
  71   plrKeyState &= ~mask;
  72 }
  73
  74
  75 public void plrKeyUpDown (uint plidx, uint mask, bool down) {
  76   if (down) plrKeyDown(plidx, mask); else plrKeyUp(plidx, mask);
  77 }
  78
  79
  80 void plrKeysFix (uint plidx) {
  81   if (plidx > 0) return;
  82   //conwritefln!"plrKeyState=0x%02x; plrKeysLast=0x%02x"(plrKeyState, plrKeysLast);
  83   foreach (uint n; 0..12) {
  84     if ((plrKeyState&(1<<n)) == 0) plrKeysLast &= ~(1<<n);
  85   }
  86 }
  87
  88
  89 // ////////////////////////////////////////////////////////////////////////// //
  90 void updateActorClasses (int iteration) {
  91   foreach (string ctype; dacsClassTypes(iteration)) {
  92     foreach (auto mod; dacsClassModules(ctype, iteration)) {
  93       auto adef = registerActorDef(mod.rmoduletype.classtype, mod.rmoduletype.classname);
  94       conwriteln("found info for actor '", adef.fullname, "'");
  95       {
  96         auto animInitFn = FuncPool.findByFQMG(mod.name~".initializeAnim", ":void");
  97         if (animInitFn !is null) adef.setAnimInitFunc(animInitFn);
  98       }
  99       {
 100         auto initFn = FuncPool.findByFQMG(mod.name~".initialize", ":void:Actor");
 101         if (initFn !is null) adef.setInitFunc(initFn);
 102       }
 103       {
 104         auto thinkFn = FuncPool.findByFQMG(mod.name~".think", ":void:Actor");
 105         if (thinkFn !is null) adef.setThinkFunc(thinkFn);
 106       }
 107     }
 108   }
 109 }
 110
 111
 112 // ////////////////////////////////////////////////////////////////////////// //
 113 private string modLoader (string modname) {
 114   static string getTextFile (string fname) {
 115     try {
 116       auto res = loadTextFile(fname);
 117       conwriteln("loading DACS module file '", fname, "' (", res.length, " bytes)");
 118       if (res is null) res = "";
 119       return res;
 120     } catch (Exception) {}
 121     return null;
 122   }
 123
 124   string res;
 125
 126   //res = getTextFile(modname~".dacs");
 127   //if (res !is null) return res;
 128
 129   res = getTextFile("scripts/"~modname~".dacs");
 130   if (res !is null) return res;
 131   assert(res is null);
 132
 133   string[] parts = ["scripts"];
 134   string mn = modname;
 135   while (mn.length > 0) {
 136     int pos = 0;
 137     if (mn[0] >= 'A' && mn[0] <= 'Z') ++pos;
 138     while (pos < mn.length && (mn[pos] < 'A' || mn[pos] > 'Z')) ++pos;
 139     if (mn[0] >= 'A' && mn[0] <= 'Z') {
 140       parts ~= cast(char)(mn[0]+32)~mn[1..pos];
 141     } else {
 142       parts ~= mn[0..pos];
 143     }
 144     mn = mn[pos..$];
 145   }
 146   {
 147     import std.array : join;
 148     string path = parts.join("/")~".dacs";
 149     res = getTextFile(path);
 150     if (res !is null) return res;
 151     assert(res is null);
 152   }
 153   assert(res is null);
 154   throw new Exception("module '"~modname~"' not found");
 155 }
 156
 157
 158 __gshared int modIteration = 0;
 159
 160 public void loadWadScripts () {
 161   if (moduleLoader is null) moduleLoader = (string modname) => modLoader(modname);
 162   string[] mainmods;
 163   try {
 164     import std.array : split;
 165     auto t = loadTextFile("scripts/dacsmain.txt");
 166     foreach (string line; t.split('\n')) {
 167       while (line.length && line[0] <= ' ') line = line[1..$];
 168       if (line.length == 0 || line[0] == ';') continue;
 169       while (line.length && line[$-1] <= ' ') line = line[0..$-1];
 170       mainmods ~= line;
 171     }
 172   } catch (Exception e) { return; }
 173   try {
 174     //conwriteln("loading main DACS module '", mainmod, "'");
 175     auto iter = modIteration++;
 176     conwriteln("iteration=", iter);
 177     foreach (string mod; mainmods) {
 178       parseModule(mod, iter);
 179     }
 180     conwriteln("calling parseComplete; iteration=", iter);
 181     parseComplete();
 182     updateActorClasses(iter);
 183   } catch (CompilerException e) {
 184     _d_print_throwable(e);
 185     conwriteln("PARSE ERROR: ", e.file, " at ", e.line);
 186     conwriteln(e.toString);
 187     assert(0);
 188   }
 189 }
 190
 191
 192 public void scriptLoadingComplete () {
 193   setupDAPI();
 194   dacsFinalizeCompiler();
 195 }
 196
 197
 198 // ////////////////////////////////////////////////////////////////////////// //
 199 public __gshared LevelMap map;
 200 //public __gshared DACSVM dvm;
 201 public __gshared uint prngSyncSeed = 0x29a;
 202 public __gshared uint prngSeed = 0x29a; // unsynced
 203
 204
 205 // ////////////////////////////////////////////////////////////////////////// //
 206 // Park-Miller-Carta Pseudo-Random Number Generator, based on David G. Carta paper
 207 // 31 bit of randomness
 208 // seed is previous result, as usual
 209 public uint prngR31next (uint seed) {
 210   if (seed == 0) seed = 0x29a;
 211   uint lo = 16807*(seed&0xffff);
 212   uint hi = 16807*(seed>>16);
 213   lo += (hi&0x7fff)<<16;
 214   lo += hi>>15;
 215   //if (lo > 0x7fffffff) lo -= 0x7fffffff; // should be >=, actually
 216   lo = (lo&0x7FFFFFFF)+(lo>>31); // same as previous code, but branch-less
 217   return lo;
 218 }
 219
 220
 221 // "synced" random, using common seed for all players
 222 public uint syncrandu31 () {
 223   pragma(inline, true);
 224   return (prngSyncSeed = prngR31next(prngSyncSeed));
 225 }
 226
 227
 228 // ////////////////////////////////////////////////////////////////////////// //
 229 version(dacs_use_vm) {
 230 // this is VAT function, argument order is reversed
 231 void doWrite(bool donl) (FuncPool.FuncInfo fi, DACSVM vm) {
 232   import std.stdio;
 233   auto count = vm.popInt();
 234   while (count-- > 0) {
 235     auto type = vm.popInt();
 236     switch (cast(VATArgType)type) {
 237       case VATArgType.Int: write(vm.popInt()); break;
 238       case VATArgType.Uint: write(vm.popUint()); break;
 239       case VATArgType.Float: write(vm.popFloat()); break;
 240       case VATArgType.StrId: write(StrId(vm.popUint()).get); break;
 241       case VATArgType.ActorId: write("<actor>"); vm.popUint(); break; //TODO
 242       default: write("<invalid-type>"); vm.popUint(); break; //TODO
 243     }
 244   }
 245   static if (donl) writeln();
 246   // push dummy return value
 247   vm.pushInt(0);
 248 }
 249 } else {
 250 extern(C) void doWrite(bool donl) (uint argc, ...) {
 251   import core.vararg;
 252   import std.stdio;
 253   mainloop: while (argc >= 2) {
 254     argc -= 2;
 255     int tp = va_arg!int(_argptr);
 256     switch (tp) {
 257       case VATArgType.Int:
 258         auto v = va_arg!int(_argptr);
 259         write(v);
 260         break;
 261       case VATArgType.Uint:
 262         auto v = va_arg!uint(_argptr);
 263         write(v);
 264         break;
 265       case VATArgType.Float:
 266         auto v = va_arg!float(_argptr);
 267         write(v);
 268         break;
 269       case VATArgType.StrId:
 270         auto v = StrId(va_arg!uint(_argptr)).get;
 271         write(v);
 272         break;
 273       case VATArgType.ActorId:
 274         auto v = ActorId(va_arg!uint(_argptr));
 275         write("<actor:", v.valid, ":", v.id, ">");
 276         //write("<actor>");
 277         break;
 278       default: write("<invalid-type>"); break mainloop;
 279     }
 280   }
 281   static if (donl) writeln();
 282 }
 283 }
 284
 285
 286 // ////////////////////////////////////////////////////////////////////////// //
 287 void animClearFrames (StrId classtype, StrId classname, StrId state) {
 288   auto adef = findActorDef(classtype.get, classname.get);
 289   if (adef is null) throw new Exception("animClearFrames: actor '"~classtype.get~":"~classname.get~"' not found!");
 290   adef.clearFrames(state);
 291 }
 292
 293
 294 void animAddFrame (StrId classtype, StrId classname, StrId state, uint dir, StrId sprname) {
 295   auto adef = findActorDef(classtype.get, classname.get);
 296   if (adef is null) throw new Exception("animAddFrame: actor '"~classtype.get~":"~classname.get~"' not found!");
 297   if (dir != 0) dir = 1; //TODO: process mirror flag here
 298   adef.addFrame(state, dir, sprname);
 299 }
 300
 301
 302 // ////////////////////////////////////////////////////////////////////////// //
 303 void setupDAPI () {
 304   conwriteln("setting up D API");
 305
 306   FuncPool["write"] = &doWrite!false;
 307   FuncPool["writeln"] = &doWrite!true;
 308
 309   FuncPool["syncrandu31"] = &syncrandu31;
 310
 311   FuncPool["animClearFrames"] = &animClearFrames;
 312   FuncPool["animAddFrame"] = &animAddFrame;
 313
 314   FuncPool["actorSetAnimation"] = function void (ActorId me, StrId state) {
 315     if (!me.valid) return;
 316     if (auto adef = findActorDef(me.classtype!string, me.classname!string)) {
 317       me.zAnimstate = state;
 318       me.zAnimidx = 0;
 319     }
 320   };
 321
 322   //FuncPool["getPlayer"] = function ActorId () { assert(0); };
 323   //FuncPool["isPlayer"] = function int (ActorId me) { return (me == players.ptr[0] ? 1 : 0); };
 324
 325   FuncPool["getPlayerButtons"] = function uint (uint pidx) { return (pidx == 1 ? plrKeysLast : 0); };
 326
 327   FuncPool["mapGetTypeTile"] = function int (int x, int y) {
 328     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);
 329   };
 330
 331   FuncPool["mapGetTile"] = function int (uint layer, int x, int y) {
 332     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);
 333   };
 334
 335   FuncPool["mapSetTypeTile"] = function void (int x, int y, int tid) {
 336     if (map is null || x < 0 || y < 0 || x >= map.width || y >= map.height || tid < 0 || tid > 255) return;
 337     auto p = map.tiles.ptr[LevelMap.Type].ptr+y*map.width+x;
 338     if (*p != tid) {
 339       *p = cast(ubyte)tid;
 340       import xmain_d2d : mapDirty;
 341       mapDirty();
 342     }
 343   };
 344
 345   FuncPool["mapSetTile"] = function void (uint layer, int x, int y, int tid) {
 346     if (map is null || layer < 0 || layer > 1 || x < 0 || y < 0 || x >= map.width || y >= map.height || tid < 0 || tid > 255) return;
 347     auto p = map.tiles.ptr[LevelMap.Front+layer].ptr+y*map.width+x;
 348     if (*p != tid) {
 349       *p = cast(ubyte)tid;
 350       import xmain_d2d : mapDirty;
 351       mapDirty();
 352     }
 353   };
 354
 355   FuncPool["getMapViewHeight"] = function int () {
 356     import xmain_d2d : vlWidth, vlHeight, scale;
 357     return vlHeight/scale;
 358   };
 359
 360   FuncPool["setMapViewPos"] = function void (int x, int y) {
 361     import xmain_d2d : setMapViewPos;
 362     setMapViewPos(x, y);
 363   };
 364
 365   FuncPool["actorsOverlap"] = function int (ActorId a, ActorId b) { return (actorsOverlap(a, b) ? 1 : 0); };
 366
 367   FuncPool["actorRemove"] = function void (ActorId me) { Actor.remove(me); };
 368
 369   FuncPool["rewindTouchList"] = &rewindTouchList;
 370   FuncPool["getNextTouchListItem"] = &getNextTouchListItem;
 371
 372   FuncPool["getCheatNoDoors"] = function int () { import xmain_d2d : cheatNoDoors; return (cheatNoDoors ? 1 : 0); };
 373
 374 }
 375
 376
 377 public void registerAPI () {
 378   //Actor.actorSize += 256;
 379   conwriteln("actor size is ", Actor.actorSize, " bytes");
 380
 381   version(dacs_use_vm) FuncPool.vm = new DACSVM();
 382   //dvm = new DACSVM();
 383
 384   // initialize actor animation
 385   foreach (ActorDef adef; actordefs.byValue) {
 386     adef.callAnimInit();
 387   }
 388
 389   conwriteln("API registered");
 390 }
 391
 392
 393 // ////////////////////////////////////////////////////////////////////////// //
 394 mixin(Actor.FieldGetMixin!("classtype", StrId)); // fget_classtype
 395 mixin(Actor.FieldGetMixin!("classname", StrId)); // fget_classname
 396 mixin(Actor.FieldGetMixin!("x", int));
 397 mixin(Actor.FieldGetMixin!("y", int));
 398 mixin(Actor.FieldGetMixin!("dir", uint));
 399 mixin(Actor.FieldGetMixin!("height", int));
 400 mixin(Actor.FieldGetMixin!("radius", int));
 401 mixin(Actor.FieldGetMixin!("flags", uint));
 402 mixin(Actor.FieldGetMixin!("zAnimstate", StrId));
 403 mixin(Actor.FieldGetMixin!("zAnimidx", int));
 404
 405 mixin(Actor.FieldSetMixin!("zAnimidx", int));
 406
 407
 408 public bool actorsOverlap (ActorId a, ActorId b) {
 409   if (!a.valid || !b.valid) return false;
 410   if (a.id == b.id) return false; // no self-overlap
 411
 412   int ax = a.fget_x;
 413   int bx = b.fget_x;
 414   int ar = a.fget_radius;
 415   int br = b.fget_radius;
 416
 417   if (ax-ar > bx+br || ax+ar < bx-br) return false;
 418
 419   int ay = a.fget_y;
 420   int by = b.fget_y;
 421   int ah = a.fget_height;
 422   int bh = b.fget_height;
 423
 424   //return (ay > by-bh && ay-ah < by);
 425   return (by-bh <= ay && by >= ay-ah);
 426 }
 427
 428
 429 // ////////////////////////////////////////////////////////////////////////// //
 430 __gshared ActorId[2] players;
 431
 432 public void loadMapMonsters () {
 433   assert(map !is null);
 434   ugClear();
 435   players[] = ActorId(0);
 436   //conwriteln(players[0].valid, "; ", players[0].id);
 437   foreach (ref thing; map.things) {
 438     if (thing.dmonly) continue;
 439     if (auto did = thing.type in d2dactordefsById) {
 440       //if (did.classtype == "item") continue;
 441       if (did.classtype == "playerstart") {
 442         if (thing.type == 1 || thing.type == 2) {
 443           int pnum = thing.type-1;
 444           if (!players[pnum].valid) {
 445             auto aid = Actor.alloc;
 446             aid.classtype = StrPool.intern("monster");
 447             aid.classname = StrPool.intern("Player");
 448             aid.plrnum = cast(uint)(pnum+1);
 449             aid.state = StrPool.MNST_SLEEP;
 450             aid.x = cast(int)thing.x;
 451             aid.y = cast(int)thing.y;
 452             aid.dir = cast(uint)(thing.right ? 1 : 0);
 453             auto adef = findD2DActorDef(thing.type);
 454             if (adef is null) assert(0);
 455             adef.callInit(aid);
 456             if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 457             players[pnum] = aid;
 458             conwriteln("player #", pnum+1, " aid is ", aid.id);
 459             //FIXME: HACK!
 460             /*
 461             if (pnum == 0) {
 462               import xmain_d2d : setMapViewPos;
 463               setMapViewPos(aid.x!int, aid.y!int);
 464             }
 465             */
 466           }
 467         }
 468         continue;
 469       }
 470     }
 471     auto adef = findD2DActorDef(thing.type);
 472     if (adef is null) {
 473       if (auto did = thing.type in d2dactordefsById) {
 474         conwriteln("ignoring D2D thing '", did.fullname, "'");
 475       } else {
 476         conwriteln("ignoring unknown D2D thing with mapid ", thing.type);
 477       }
 478       continue;
 479     }
 480     // load graphics (we'll load all graphics)
 481     //adef.loadGraphics();
 482     // create actor and initialize it
 483     auto aid = Actor.alloc;
 484     aid.classtype = StrPool.intern(adef.classtype);
 485     aid.classname = StrPool.intern(adef.classname);
 486     //conwriteln("found '", aid.classtype.get, ":", aid.classname.get, "'");
 487     if (auto did = thing.type in d2dactordefsById) {
 488       assert(did.classtype == adef.classtype);
 489       assert(did.classname == adef.classname);
 490       conwriteln("mapid=", thing.type, "; ", adef.classtype, ":", adef.classname, "; id=", aid.id);
 491       assert(aid.classtype!string == adef.classtype);
 492       assert(aid.classname!string == adef.classname);
 493     } else {
 494       assert(0);
 495     }
 496     aid.state = StrPool.MNST_SLEEP;
 497     aid.x = cast(int)thing.x;
 498     aid.y = cast(int)thing.y;
 499     aid.dir = cast(uint)(thing.right ? 1 : 0);
 500     //if (aid.classtype!string == "item" && aid.x!int < 64) { aid.x = 92; aid.y = aid.y!int-16; conwriteln("!!!"); }
 501     adef.callInit(aid);
 502     if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 503   }
 504
 505   foreach (ActorDef adef; actordefs.byValue) {
 506     conwriteln("loading graphics for '", adef.fullname, "'");
 507     adef.loadGraphics();
 508   }
 509   //Actor.dumpActors();
 510
 511   conwriteln("initial snapshot size: ", Actor.snapshotSize, " bytes");
 512 }
 513
 514
 515 // ////////////////////////////////////////////////////////////////////////// //
 516 __gshared uint[65536] touchList; // aids
 517 __gshared uint[] realTouchList;
 518 __gshared uint realTouchListIndex = uint.max;
 519 __gshared ActorId curThinkingActor;
 520 __gshared bool touchListAllowed = false;
 521
 522
 523 // dacs API
 524 void rewindTouchList () {
 525   if (!touchListAllowed) return;
 526   realTouchListIndex = 0;
 527   realTouchList = ugActorHitList(curThinkingActor, touchList[]);
 528 }
 529
 530
 531 // dacs API
 532 ActorId getNextTouchListItem () {
 533   if (!touchListAllowed) return ActorId(0);
 534   if (realTouchListIndex == uint.max) rewindTouchList();
 535   while (realTouchListIndex < realTouchList.length) {
 536     auto aid = ActorId(realTouchList.ptr[realTouchListIndex]);
 537     ++realTouchListIndex;
 538     if (aid.valid && (aid.flags!uint&AF_NOONTOUCH) == 0) return aid;
 539   }
 540   return ActorId(0);
 541 }
 542
 543
 544 public void doActorsThink () {
 545   //FIXME
 546   //static uint fflags = uint.max;
 547   //if (fflags == uint.max) fflags = Actor.fields["flags"].ofs;
 548
 549   // we have too much memory!
 550   __gshared uint[65536] validActorsList;
 551
 552   touchListAllowed = true;
 553   scope(exit) touchListAllowed = false;
 554   foreach (uint xid; Actor.getValidList(validActorsList[])) {
 555     auto me = ActorId(xid);
 556     if (me.valid) {
 557       auto flags = me.fget_flags;
 558       if ((flags&AF_NOCOLLISION) == 0) ugActorModify!false(me); // remove from grid
 559       if (auto adef = findActorDef(me)) {
 560         if ((flags&AF_NOTHINK) == 0) {
 561           realTouchListIndex = uint.max;
 562           curThinkingActor = me;
 563           adef.callThink(me);
 564           //if (me.x!int < 32) conwriteln("actor: ", me.id, "; attLightRGBX=", me.attLightRGBX!uint);
 565           if (!me.valid) continue; // we are dead
 566           flags = me.fget_flags; // in case script updated flags
 567         }
 568         if ((flags&AF_NOANIMATE) == 0) {
 569           int aidx = me.fget_zAnimidx;
 570           int nidx = adef.nextAnimIdx(me.fget_zAnimstate, me.fget_dir, aidx);
 571           //conwriteln("actor ", me.id, " (", me.classtype!string, me.classname!string, "): state=", me.zAnimstate!string, "; aidx=", aidx, "; nidx=", nidx);
 572           me.fset_zAnimidx = nidx;
 573           //assert(me.fget_zAnimidx == nidx);
 574         }
 575         // put back to grid
 576         if ((flags&AF_NOCOLLISION) == 0) ugActorModify!true(me);
 577       }
 578     }
 579   }
 580   plrKeysFix(0);
 581   //{ import std.stdio : stdout; stdout.writeln("========================================="); }
 582   //Actor.dumpActors();
 583 }