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
 324   FuncPool["isPlayer"] = function int (ActorId me) { return (me == players.ptr[0] ? 1 : 0); };
 325
 326   FuncPool["getPlayerButtons"] = function uint (uint pidx) { return (pidx == 0 ? plrKeysLast : 0); };
 327
 328   FuncPool["mapGetTypeTile"] = function int (int x, int y) {
 329     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);
 330   };
 331
 332   FuncPool["mapGetTile"] = function int (uint layer, int x, int y) {
 333     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);
 334   };
 335
 336   FuncPool["getMapViewHeight"] = function int () {
 337     import xmain_d2d : vlWidth, vlHeight, scale;
 338     return vlHeight/scale;
 339   };
 340
 341   FuncPool["setMapViewPos"] = function void (int x, int y) {
 342     import xmain_d2d : setMapViewPos;
 343     setMapViewPos(x, y);
 344   };
 345
 346   FuncPool["actorsOverlap"] = function int (ActorId a, ActorId b) { return (actorsOverlap(a, b) ? 1 : 0); };
 347
 348   FuncPool["actorRemove"] = function void (ActorId me) { Actor.remove(me); };
 349
 350   FuncPool["rewindTouchList"] = &rewindTouchList;
 351   FuncPool["getNextTouchListItem"] = &getNextTouchListItem;
 352
 353   FuncPool["getCheatNoDoors"] = function int () { import xmain_d2d : cheatNoDoors; return (cheatNoDoors ? 1 : 0); };
 354 }
 355
 356
 357 public void registerAPI () {
 358   //Actor.actorSize += 256;
 359   conwriteln("actor size is ", Actor.actorSize, " bytes");
 360
 361   version(dacs_use_vm) FuncPool.vm = new DACSVM();
 362   //dvm = new DACSVM();
 363
 364   // initialize actor animation
 365   foreach (ActorDef adef; actordefs.byValue) {
 366     adef.callAnimInit();
 367   }
 368
 369   conwriteln("API registered");
 370 }
 371
 372
 373 // ////////////////////////////////////////////////////////////////////////// //
 374 mixin(Actor.FieldGetMixin!("classtype", StrId)); // fget_classtype
 375 mixin(Actor.FieldGetMixin!("classname", StrId)); // fget_classname
 376 mixin(Actor.FieldGetMixin!("x", int));
 377 mixin(Actor.FieldGetMixin!("y", int));
 378 mixin(Actor.FieldGetMixin!("dir", uint));
 379 mixin(Actor.FieldGetMixin!("height", int));
 380 mixin(Actor.FieldGetMixin!("radius", int));
 381 mixin(Actor.FieldGetMixin!("flags", uint));
 382 mixin(Actor.FieldGetMixin!("zAnimstate", StrId));
 383 mixin(Actor.FieldGetMixin!("zAnimidx", int));
 384
 385 mixin(Actor.FieldSetMixin!("zAnimidx", int));
 386
 387
 388 public bool actorsOverlap (ActorId a, ActorId b) {
 389   if (!a.valid || !b.valid) return false;
 390   if (a.id == b.id) return false; // no self-overlap
 391
 392   int ax = a.fget_x;
 393   int bx = b.fget_x;
 394   int ar = a.fget_radius;
 395   int br = b.fget_radius;
 396
 397   if (ax-ar > bx+br || ax+ar < bx-br) return false;
 398
 399   int ay = a.fget_y;
 400   int by = b.fget_y;
 401   int ah = a.fget_height;
 402   int bh = b.fget_height;
 403
 404   //return (ay > by-bh && ay-ah < by);
 405   return (by-bh <= ay && by >= ay-ah);
 406 }
 407
 408
 409 // ////////////////////////////////////////////////////////////////////////// //
 410 __gshared ActorId[2] players;
 411
 412 public void loadMapMonsters () {
 413   assert(map !is null);
 414   ugClear();
 415   players[] = ActorId(0);
 416   //conwriteln(players[0].valid, "; ", players[0].id);
 417   foreach (ref thing; map.things) {
 418     if (thing.dmonly) continue;
 419     if (auto did = thing.type in d2dactordefsById) {
 420       //if (did.classtype == "item") continue;
 421       if (did.classtype == "playerstart") {
 422         if (thing.type == 1 || thing.type == 2) {
 423           int pnum = thing.type-1;
 424           if (!players[pnum].valid) {
 425             auto aid = Actor.alloc;
 426             aid.classtype = StrPool.intern("monster");
 427             aid.classname = StrPool.intern("Player");
 428             aid.plrnum = cast(uint)pnum;
 429             aid.state = StrPool.MNST_SLEEP;
 430             aid.x = cast(int)thing.x;
 431             aid.y = cast(int)thing.y;
 432             aid.dir = cast(uint)(thing.right ? 1 : 0);
 433             auto adef = findD2DActorDef(thing.type);
 434             if (adef is null) assert(0);
 435             adef.callInit(aid);
 436             if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 437             players[pnum] = aid;
 438             conwriteln("player #", pnum+1, " aid is ", aid.id);
 439             //FIXME: HACK!
 440             /*
 441             if (pnum == 0) {
 442               import xmain_d2d : setMapViewPos;
 443               setMapViewPos(aid.x!int, aid.y!int);
 444             }
 445             */
 446           }
 447         }
 448         continue;
 449       }
 450     }
 451     auto adef = findD2DActorDef(thing.type);
 452     if (adef is null) {
 453       if (auto did = thing.type in d2dactordefsById) {
 454         conwriteln("ignoring D2D thing '", did.fullname, "'");
 455       } else {
 456         conwriteln("ignoring unknown D2D thing with mapid ", thing.type);
 457       }
 458       continue;
 459     }
 460     // load graphics (we'll load all graphics)
 461     //adef.loadGraphics();
 462     // create actor and initialize it
 463     auto aid = Actor.alloc;
 464     aid.classtype = StrPool.intern(adef.classtype);
 465     aid.classname = StrPool.intern(adef.classname);
 466     //conwriteln("found '", aid.classtype.get, ":", aid.classname.get, "'");
 467     if (auto did = thing.type in d2dactordefsById) {
 468       assert(did.classtype == adef.classtype);
 469       assert(did.classname == adef.classname);
 470       conwriteln("mapid=", thing.type, "; ", adef.classtype, ":", adef.classname, "; id=", aid.id);
 471       assert(aid.classtype!string == adef.classtype);
 472       assert(aid.classname!string == adef.classname);
 473     } else {
 474       assert(0);
 475     }
 476     aid.state = StrPool.MNST_SLEEP;
 477     aid.x = cast(int)thing.x;
 478     aid.y = cast(int)thing.y;
 479     aid.dir = cast(uint)(thing.right ? 1 : 0);
 480     //if (aid.x!int < 64) { aid.x = 64; conwriteln("!!!"); }
 481     adef.callInit(aid);
 482     if ((aid.flags!uint&AF_NOCOLLISION) == 0) ugActorModify!true(aid);
 483   }
 484
 485   foreach (ActorDef adef; actordefs.byValue) {
 486     conwriteln("loading graphics for '", adef.fullname, "'");
 487     adef.loadGraphics();
 488   }
 489   //Actor.dumpActors();
 490
 491   conwriteln("initial snapshot size: ", Actor.snapshotSize, " bytes");
 492 }
 493
 494
 495 // ////////////////////////////////////////////////////////////////////////// //
 496 __gshared uint[65536] touchList; // aids
 497 __gshared uint[] realTouchList;
 498 __gshared uint realTouchListIndex = uint.max;
 499 __gshared ActorId curThinkingActor;
 500 __gshared bool touchListAllowed = false;
 501
 502
 503 // dacs API
 504 void rewindTouchList () {
 505   if (!touchListAllowed) return;
 506   realTouchListIndex = 0;
 507   realTouchList = ugActorHitList(curThinkingActor, touchList[]);
 508 }
 509
 510
 511 // dacs API
 512 ActorId getNextTouchListItem () {
 513   if (!touchListAllowed) return ActorId(0);
 514   if (realTouchListIndex == uint.max) rewindTouchList();
 515   while (realTouchListIndex < realTouchList.length) {
 516     auto aid = ActorId(realTouchList.ptr[realTouchListIndex]);
 517     ++realTouchListIndex;
 518     if (aid.valid && (aid.flags!uint&AF_NOONTOUCH) == 0) return aid;
 519   }
 520   return ActorId(0);
 521 }
 522
 523
 524 public void doActorsThink () {
 525   //FIXME
 526   //static uint fflags = uint.max;
 527   //if (fflags == uint.max) fflags = Actor.fields["flags"].ofs;
 528
 529   // we have too much memory!
 530   __gshared uint[65536] validActorsList;
 531
 532   touchListAllowed = true;
 533   scope(exit) touchListAllowed = false;
 534   foreach (uint xid; Actor.getValidList(validActorsList[])) {
 535     auto me = ActorId(xid);
 536     if (me.valid) {
 537       auto flags = me.fget_flags;
 538       if ((flags&AF_NOCOLLISION) == 0) ugActorModify!false(me); // remove from grid
 539       if (auto adef = findActorDef(me)) {
 540         if ((flags&AF_NOTHINK) == 0) {
 541           realTouchListIndex = uint.max;
 542           curThinkingActor = me;
 543           adef.callThink(me);
 544           //if (me.x!int < 32) conwriteln("actor: ", me.id, "; attLightRGBX=", me.attLightRGBX!uint);
 545           if (!me.valid) continue; // we are dead
 546           flags = me.fget_flags; // in case script updated flags
 547         }
 548         if ((flags&AF_NOANIMATE) == 0) {
 549           int aidx = me.fget_zAnimidx;
 550           int nidx = adef.nextAnimIdx(me.fget_zAnimstate, me.fget_dir, aidx);
 551           //conwriteln("actor ", me.id, " (", me.classtype!string, me.classname!string, "): state=", me.zAnimstate!string, "; aidx=", aidx, "; nidx=", nidx);
 552           me.fset_zAnimidx = nidx;
 553           //assert(me.fget_zAnimidx == nidx);
 554         }
 555         // put back to grid
 556         if ((flags&AF_NOCOLLISION) == 0) ugActorModify!true(me);
 557       }
 558     }
 559   }
 560   plrKeysFix(0);
 561   //{ import std.stdio : stdout; stdout.writeln("========================================="); }
 562   //Actor.dumpActors();
 563 }