dengapi.d

   1 module dengapi is aliced;
   2
   3 private:
   4 import core.atomic;
   5 import core.thread;
   6 import core.time;
   7
   8 import iv.glbinds;
   9 import glutils;
  10 import console;
  11 import wadarc;
  12
  13 import d2dmap;
  14 import d2dadefs;
  15 import d2dgfx;
  16 import dacs;
  17
  18
  19 // ////////////////////////////////////////////////////////////////////////// //
  20 private extern (C) void _d_print_throwable (Throwable t);
  21
  22
  23 // ////////////////////////////////////////////////////////////////////////// //
  24 import arsd.color;
  25 import arsd.png;
  26
  27
  28 // ////////////////////////////////////////////////////////////////////////// //
  29 public {
  30   enum PLK_UP    = (1<<0);
  31   enum PLK_DOWN  = (1<<1);
  32   enum PLK_LEFT  = (1<<2);
  33   enum PLK_RIGHT = (1<<3);
  34   enum PLK_FIRE  = (1<<4);
  35   enum PLK_JUMP  = (1<<5);
  36   enum PLK_USE   = (1<<6);
  37 }
  38
  39 __gshared uint plrKeysLast;
  40 __gshared uint plrKeyState;
  41
  42
  43 public void plrKeyDown (uint plidx, uint mask) {
  44   if (mask == 0 || plidx > 0) return;
  45   plrKeysLast |= mask;
  46   plrKeyState |= mask;
  47 }
  48
  49
  50 public void plrKeyUp (uint plidx, uint mask) {
  51   if (mask == 0 || plidx > 0) return;
  52   plrKeyState &= ~mask;
  53 }
  54
  55
  56 public void plrKeyUpDown (uint plidx, uint mask, bool down) {
  57   if (down) plrKeyDown(plidx, mask); else plrKeyUp(plidx, mask);
  58 }
  59
  60
  61 void plrKeysFix (uint plidx) {
  62   if (plidx > 0) return;
  63   //conwritefln!"plrKeyState=0x%02x; plrKeysLast=0x%02x"(plrKeyState, plrKeysLast);
  64   foreach (uint n; 0..12) {
  65     if ((plrKeyState&(1<<n)) == 0) plrKeysLast &= ~(1<<n);
  66   }
  67 }
  68
  69
  70 // ////////////////////////////////////////////////////////////////////////// //
  71 void updateActorClasses (int iteration) {
  72   foreach (string ctype; dacsClassTypes(iteration)) {
  73     foreach (auto mod; dacsClassModules(ctype, iteration)) {
  74       auto adef = registerActorDef(mod.rmoduletype.classtype, mod.rmoduletype.classname);
  75       conwriteln("found info for actor '", adef.fullname, "'");
  76       {
  77         auto animInitFn = FuncPool.findByFQMG(mod.name~".initializeAnim", ":void");
  78         if (animInitFn !is null) adef.setAnimInitFunc(animInitFn);
  79       }
  80       {
  81         auto initFn = FuncPool.findByFQMG(mod.name~".initialize", ":void:Actor");
  82         if (initFn !is null) adef.setInitFunc(initFn);
  83       }
  84       {
  85         auto thinkFn = FuncPool.findByFQMG(mod.name~".think", ":void:Actor");
  86         if (thinkFn !is null) adef.setThinkFunc(thinkFn);
  87       }
  88     }
  89   }
  90 }
  91
  92
  93 // ////////////////////////////////////////////////////////////////////////// //
  94 private string modLoader (string modname) {
  95   static string getTextFile (string fname) {
  96     try {
  97       auto res = loadTextFile(fname);
  98       conwriteln("loading DACS module file '", fname, "' (", res.length, " bytes)");
  99       if (res is null) res = "";
 100       return res;
 101     } catch (Exception) {}
 102     return null;
 103   }
 104
 105   string res;
 106
 107   //res = getTextFile(modname~".dacs");
 108   //if (res !is null) return res;
 109
 110   res = getTextFile("scripts/"~modname~".dacs");
 111   if (res !is null) return res;
 112   assert(res is null);
 113
 114   string[] parts = ["scripts"];
 115   string mn = modname;
 116   while (mn.length > 0) {
 117     int pos = 0;
 118     if (mn[0] >= 'A' && mn[0] <= 'Z') ++pos;
 119     while (pos < mn.length && (mn[pos] < 'A' || mn[pos] > 'Z')) ++pos;
 120     if (mn[0] >= 'A' && mn[0] <= 'Z') {
 121       parts ~= cast(char)(mn[0]+32)~mn[1..pos];
 122     } else {
 123       parts ~= mn[0..pos];
 124     }
 125     mn = mn[pos..$];
 126   }
 127   {
 128     import std.array : join;
 129     string path = parts.join("/")~".dacs";
 130     res = getTextFile(path);
 131     if (res !is null) return res;
 132     assert(res is null);
 133   }
 134   assert(res is null);
 135   throw new Exception("module '"~modname~"' not found");
 136 }
 137
 138
 139 __gshared int modIteration = 0;
 140
 141 public void loadWadScripts () {
 142   if (moduleLoader is null) moduleLoader = (string modname) => modLoader(modname);
 143   string[] mainmods;
 144   try {
 145     import std.array : split;
 146     auto t = loadTextFile("scripts/dacsmain.txt");
 147     foreach (string line; t.split('\n')) {
 148       while (line.length && line[0] <= ' ') line = line[1..$];
 149       if (line.length == 0 || line[0] == ';') continue;
 150       while (line.length && line[$-1] <= ' ') line = line[0..$-1];
 151       mainmods ~= line;
 152     }
 153   } catch (Exception e) { return; }
 154   try {
 155     //conwriteln("loading main DACS module '", mainmod, "'");
 156     auto iter = modIteration++;
 157     conwriteln("iteration=", iter);
 158     foreach (string mod; mainmods) {
 159       parseModule(mod, iter);
 160     }
 161     conwriteln("calling parseComplete; iteration=", iter);
 162     parseComplete();
 163     updateActorClasses(iter);
 164   } catch (CompilerException e) {
 165     _d_print_throwable(e);
 166     conwriteln("PARSE ERROR: ", e.file, " at ", e.line);
 167     conwriteln(e.toString);
 168     assert(0);
 169   }
 170 }
 171
 172
 173 public void scriptLoadingComplete () {
 174   setupDAPI();
 175   dacsFinalizeCompiler();
 176 }
 177
 178
 179 // ////////////////////////////////////////////////////////////////////////// //
 180 public __gshared LevelMap map;
 181 //public __gshared DACSVM dvm;
 182 public __gshared uint prngSyncSeed = 0x29a;
 183 public __gshared uint prngSeed = 0x29a; // unsynced
 184
 185
 186 // ////////////////////////////////////////////////////////////////////////// //
 187 // Park-Miller-Carta Pseudo-Random Number Generator, based on David G. Carta paper
 188 // 31 bit of randomness
 189 // seed is previous result, as usual
 190 public uint prngR31next (uint seed) {
 191   if (seed == 0) seed = 0x29a;
 192   uint lo = 16807*(seed&0xffff);
 193   uint hi = 16807*(seed>>16);
 194   lo += (hi&0x7fff)<<16;
 195   lo += hi>>15;
 196   //if (lo > 0x7fffffff) lo -= 0x7fffffff; // should be >=, actually
 197   lo = (lo&0x7FFFFFFF)+(lo>>31); // same as previous code, but branch-less
 198   return lo;
 199 }
 200
 201
 202 // "synced" random, using common seed for all players
 203 public uint syncrandu31 () {
 204   pragma(inline, true);
 205   return (prngSyncSeed = prngR31next(prngSyncSeed));
 206 }
 207
 208
 209 // ////////////////////////////////////////////////////////////////////////// //
 210 version(dacs_use_vm) {
 211 // this is VAT function, argument order is reversed
 212 void doWrite(bool donl) (FuncPool.FuncInfo fi, DACSVM vm) {
 213   import std.stdio;
 214   auto count = vm.popInt();
 215   while (count-- > 0) {
 216     auto type = vm.popInt();
 217     switch (cast(VATArgType)type) {
 218       case VATArgType.Int: write(vm.popInt()); break;
 219       case VATArgType.Uint: write(vm.popUint()); break;
 220       case VATArgType.Float: write(vm.popFloat()); break;
 221       case VATArgType.StrId: write(StrId(vm.popUint()).get); break;
 222       case VATArgType.ActorId: write("<actor>"); vm.popUint(); break; //TODO
 223       default: write("<invalid-type>"); vm.popUint(); break; //TODO
 224     }
 225   }
 226   static if (donl) writeln();
 227   // push dummy return value
 228   vm.pushInt(0);
 229 }
 230 } else {
 231 extern(C) void doWrite(bool donl) (uint argc, ...) {
 232   import core.vararg;
 233   import std.stdio;
 234   mainloop: while (argc >= 2) {
 235     argc -= 2;
 236     int tp = va_arg!int(_argptr);
 237     switch (tp) {
 238       case VATArgType.Int:
 239         auto v = va_arg!int(_argptr);
 240         write(v);
 241         break;
 242       case VATArgType.Uint:
 243         auto v = va_arg!uint(_argptr);
 244         write(v);
 245         break;
 246       case VATArgType.Float:
 247         auto v = va_arg!float(_argptr);
 248         write(v);
 249         break;
 250       case VATArgType.StrId:
 251         auto v = StrId(va_arg!uint(_argptr)).get;
 252         write(v);
 253         break;
 254       case VATArgType.ActorId:
 255         auto v = ActorId(va_arg!uint(_argptr));
 256         //write("<actor:", v.valid, ":", v.id, ">");
 257         write("<actor>");
 258         break;
 259       default: write("<invalid-type>"); break mainloop;
 260     }
 261   }
 262   static if (donl) writeln();
 263 }
 264 }
 265
 266
 267 // ////////////////////////////////////////////////////////////////////////// //
 268 void animClearFrames (StrId classtype, StrId classname, StrId state) {
 269   auto adef = findActorDef(classtype.get, classname.get);
 270   if (adef is null) throw new Exception("animClearFrames: actor '"~classtype.get~":"~classname.get~"' not found!");
 271   adef.clearFrames(state);
 272 }
 273
 274
 275 void animAddFrame (StrId classtype, StrId classname, StrId state, uint dir, StrId sprname) {
 276   auto adef = findActorDef(classtype.get, classname.get);
 277   if (adef is null) throw new Exception("animAddFrame: actor '"~classtype.get~":"~classname.get~"' not found!");
 278   if (dir != 0) dir = 1; //TODO: process mirror flag here
 279   adef.addFrame(state, dir, sprname);
 280 }
 281
 282
 283 // ////////////////////////////////////////////////////////////////////////// //
 284 void setupDAPI () {
 285   conwriteln("setting up D API");
 286
 287   FuncPool["write"] = &doWrite!false;
 288   FuncPool["writeln"] = &doWrite!true;
 289
 290   FuncPool["syncrandu31"] = &syncrandu31;
 291
 292   FuncPool["animClearFrames"] = &animClearFrames;
 293   FuncPool["animAddFrame"] = &animAddFrame;
 294
 295   FuncPool["actorSetAnimation"] = function void (ActorId me, StrId state) {
 296     if (!me.valid) return;
 297     if (auto adef = findActorDef(me.classtype!string, me.classname!string)) {
 298       me.zAnimstate = state;
 299       me.zAnimidx = 0;
 300     }
 301   };
 302
 303   FuncPool["getPlayer"] = function ActorId () { assert(0); };
 304
 305   FuncPool["getPlayerButtons"] = function uint (uint pidx) { return (pidx == 0 ? plrKeysLast : 0); };
 306
 307   FuncPool["mapGetTypeTile"] = function int (int x, int y) {
 308     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);
 309   };
 310
 311   FuncPool["mapGetTile"] = function int (uint layer, int x, int y) {
 312     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);
 313   };
 314 }
 315
 316 public void registerAPI () {
 317   conwriteln("actor size is ", Actor.actorSize, " bytes");
 318
 319   version(dacs_use_vm) FuncPool.vm = new DACSVM();
 320   //dvm = new DACSVM();
 321
 322   // initialize actor animation
 323   foreach (ActorDef adef; actordefs.byValue) {
 324     adef.callAnimInit();
 325   }
 326
 327   conwriteln("API registered");
 328 }
 329
 330
 331 // ////////////////////////////////////////////////////////////////////////// //
 332 __gshared ActorId[2] players;
 333
 334 public void loadMapMonsters () {
 335   assert(map !is null);
 336   players[] = ActorId(0);
 337   //conwriteln(players[0].valid, "; ", players[0].id);
 338   foreach (ref thing; map.things) {
 339     if (thing.dmonly) continue;
 340     if (auto did = thing.type in d2dactordefsById) {
 341       if (did.classtype == "item") continue;
 342       if (did.classtype == "playerstart") {
 343         if (thing.type == 1 || thing.type == 2) {
 344           int pnum = thing.type-1;
 345           if (!players[pnum].valid) {
 346             auto aid = Actor.alloc;
 347             aid.classtype = StrPool.intern("monster");
 348             aid.classname = StrPool.intern("Player");
 349             aid.plrnum = cast(uint)pnum;
 350             aid.state = StrPool.MNST_SLEEP;
 351             aid.x = cast(int)thing.x;
 352             aid.y = cast(int)thing.y;
 353             aid.dir = cast(uint)(thing.right ? 1 : 0);
 354             auto adef = findD2DActorDef(thing.type);
 355             if (adef is null) assert(0);
 356             adef.callInit(aid);
 357             players[pnum] = aid;
 358             conwriteln("player #", pnum+1, " aid is ", aid.id);
 359           }
 360         }
 361         continue;
 362       }
 363     }
 364     auto adef = findD2DActorDef(thing.type);
 365     if (adef is null) {
 366       if (auto did = thing.type in d2dactordefsById) {
 367         conwriteln("ignoring D2D thing '", did.fullname, "'");
 368       } else {
 369         conwriteln("ignoring unknown D2D thing with mapid ", thing.type);
 370       }
 371       continue;
 372     }
 373     // load graphics (we'll load all graphics)
 374     //adef.loadGraphics();
 375     // create actor and initialize it
 376     auto aid = Actor.alloc;
 377     aid.classtype = StrPool.intern(adef.classtype);
 378     aid.classname = StrPool.intern(adef.classname);
 379     //conwriteln("found '", aid.classtype.get, ":", aid.classname.get, "'");
 380     if (auto did = thing.type in d2dactordefsById) {
 381       assert(did.classtype == adef.classtype);
 382       assert(did.classname == adef.classname);
 383       conwriteln("mapid=", thing.type, "; ", adef.classtype, ":", adef.classname, "; id=", aid.id);
 384       assert(aid.classtype!string == adef.classtype);
 385       assert(aid.classname!string == adef.classname);
 386     } else {
 387       assert(0);
 388     }
 389     aid.state = StrPool.MNST_SLEEP;
 390     aid.x = cast(int)thing.x;
 391     aid.y = cast(int)thing.y;
 392     aid.dir = cast(uint)(thing.right ? 1 : 0);
 393     adef.callInit(aid);
 394   }
 395
 396   foreach (ActorDef adef; actordefs.byValue) {
 397     conwriteln("loading graphics for '", adef.fullname, "'");
 398     adef.loadGraphics();
 399   }
 400   //Actor.dumpActors();
 401
 402   conwriteln("initial snapshot size: ", Actor.snapshotSize, " bytes");
 403 }
 404
 405
 406 // ////////////////////////////////////////////////////////////////////////// //
 407 public void doActorsThink () {
 408   Actor.forEach((ActorId me) {
 409     // `act` is always valid here
 410     if (auto adef = findActorDef(me.classtype!string, me.classname!string)) {
 411       adef.callThink(me);
 412       int aidx = me.zAnimidx!int;
 413       int nidx = adef.nextAnimIdx(me.zAnimstate!StrId, me.dir!uint, aidx);
 414       //conwriteln("actor ", me.id, " (", me.classtype!string, me.classname!string, "): state=", me.zAnimstate!string, "; aidx=", aidx, "; nidx=", nidx);
 415       me.zAnimidx = nidx;
 416       assert(me.zAnimidx!int == nidx);
 417     }
 418   });
 419   plrKeysFix(0);
 420   //{ import std.stdio : stdout; stdout.writeln("========================================="); }
 421   //Actor.dumpActors();
 422 }