render.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 render is aliced;
  19
  20 //version = dont_use_vsync;
  21
  22 private:
  23 import core.atomic;
  24 import core.thread;
  25 import core.time;
  26
  27 import std.concurrency;
  28
  29 import iv.glbinds;
  30 import glutils;
  31 import console;
  32 import wadarc;
  33
  34 import iv.stream;
  35
  36 import d2dmap;
  37 import d2dadefs;
  38 //import d2dactors;
  39 import d2dgfx;
  40 import d2dfont;
  41 import dacs;
  42
  43 import d2dunigrid;
  44
  45 // `map` is there
  46 import dengapi;
  47
  48 import d2dparts;
  49
  50
  51 // ////////////////////////////////////////////////////////////////////////// //
  52 import arsd.color;
  53 import arsd.png;
  54
  55
  56 // ////////////////////////////////////////////////////////////////////////// //
  57 public __gshared bool cheatNoDoors = false;
  58 public __gshared bool cheatNoWallClip = false;
  59
  60
  61 // ////////////////////////////////////////////////////////////////////////// //
  62 public __gshared SimpleWindow sdwindow;
  63
  64
  65 public enum vlWidth = 800;
  66 public enum vlHeight = 800;
  67 __gshared int scale = 2;
  68
  69 public int getScale () nothrow @trusted @nogc { pragma(inline, true); return scale; }
  70
  71
  72 // ////////////////////////////////////////////////////////////////////////// //
  73 __gshared bool levelLoaded = false;
  74
  75
  76 // ////////////////////////////////////////////////////////////////////////// //
  77 __gshared bool scanlines = false;
  78 __gshared bool doLighting = true;
  79 __gshared bool gamePaused = false;
  80 shared bool editMode = false;
  81
  82 public @property bool inEditMode () nothrow @trusted @nogc { import core.atomic; return atomicLoad(editMode); }
  83 @property void inEditMode (bool v) nothrow @trusted @nogc { import core.atomic; atomicStore(editMode, v); }
  84
  85
  86 // ////////////////////////////////////////////////////////////////////////// //
  87 // interpolation
  88 __gshared ubyte[] prevFrameActorsData;
  89 __gshared uint[65536] prevFrameActorOfs; // uint.max-1: dead; uint.max: last
  90 __gshared MonoTime lastthink = MonoTime.zero; // for interpolator
  91 __gshared MonoTime nextthink = MonoTime.zero;
  92 __gshared bool frameInterpolation = true;
  93
  94
  95 // ////////////////////////////////////////////////////////////////////////// //
  96 // attached lights
  97 struct AttachedLightInfo {
  98   enum Type {
  99     Point,
 100     Ambient,
 101   }
 102   Type type;
 103   int x, y;
 104   int w, h; // for ambient lights
 105   float r, g, b;
 106   bool uncolored;
 107   int radius;
 108 }
 109
 110 __gshared AttachedLightInfo[65536] attachedLights;
 111 __gshared uint attachedLightCount = 0;
 112
 113
 114 // ////////////////////////////////////////////////////////////////////////// //
 115 enum MaxLightRadius = 255;
 116
 117
 118 // ////////////////////////////////////////////////////////////////////////// //
 119 // for light
 120 __gshared FBO[MaxLightRadius+1] fboDistMap;
 121 __gshared FBO fboOccluders;
 122 __gshared Shader shadToPolar, shadBlur, shadBlurOcc, shadAmbient;
 123 __gshared TrueColorImage editorImg;
 124 __gshared FBO fboEditor;
 125
 126 __gshared FBO fboLevel, fboLevelLight, fboOrigBack, fboLMaskSmall;
 127 __gshared Shader shadScanlines;
 128 __gshared Shader shadLiquidDistort;
 129
 130
 131 // ////////////////////////////////////////////////////////////////////////// //
 132 // call once!
 133 public void initOpenGL () {
 134   gloStackClear();
 135
 136   glEnable(GL_TEXTURE_2D);
 137   glDisable(GL_LIGHTING);
 138   glDisable(GL_DITHER);
 139   glDisable(GL_BLEND);
 140   glDisable(GL_DEPTH_TEST);
 141
 142   // create shaders
 143   shadScanlines = new Shader("scanlines", loadTextFile("shaders/srscanlines.frag"));
 144
 145   shadLiquidDistort = new Shader("liquid_distort", loadTextFile("shaders/srliquid_distort.frag"));
 146   shadLiquidDistort.exec((Shader shad) {
 147     shad["texLqMap"] = 0;
 148   });
 149
 150   // lights
 151   shadToPolar = new Shader("light_trace", loadTextFile("shaders/srlight_trace.frag"));
 152   shadToPolar.exec((Shader shad) {
 153     shad["texOcc"] = 0;
 154     shad["texOccFull"] = 2;
 155     shad["texOccSmall"] = 3;
 156   });
 157
 158   shadBlur = new Shader("light_blur", loadTextFile("shaders/srlight_blur.frag"));
 159   shadBlur.exec((Shader shad) {
 160     shad["texDist"] = 0;
 161     shad["texBg"] = 1;
 162     shad["texOcc"] = 2;
 163     shad["texOccSmall"] = 3;
 164   });
 165
 166   shadBlurOcc = new Shader("light_blur_occ", loadTextFile("shaders/srlight_blur_occ.frag"));
 167   shadBlurOcc.exec((Shader shad) {
 168     shad["texLMap"] = 0;
 169     shad["texBg"] = 1;
 170     shad["texOcc"] = 2;
 171     shad["texOccSmall"] = 3;
 172   });
 173
 174   shadAmbient = new Shader("light_ambient", loadTextFile("shaders/srlight_ambient.frag"));
 175   shadAmbient.exec((Shader shad) {
 176     shad["texBg"] = 1;
 177     shad["texOcc"] = 2;
 178     shad["texOccSmall"] = 3;
 179   });
 180
 181   fboOccluders = new FBO(MaxLightRadius*2, MaxLightRadius*2, Texture.Option.Clamp, Texture.Option.Linear);
 182   //TODO: this sux!
 183   foreach (int sz; 2..MaxLightRadius+1) {
 184     fboDistMap[sz] = new FBO(sz*2, 1, Texture.Option.Clamp, Texture.Option.Linear); // create 1d distance map FBO
 185   }
 186
 187   editorImg = new TrueColorImage(vlWidth, vlHeight);
 188   editorImg.imageData.colors[] = Color(0, 0, 0, 0);
 189   fboEditor = new FBO(vlWidth, vlHeight, Texture.Option.Nearest);
 190
 191   // setup matrices
 192   glMatrixMode(GL_MODELVIEW);
 193   glLoadIdentity();
 194
 195   loadSmFont();
 196   loadAllMonsterGraphics();
 197 }
 198
 199
 200 // ////////////////////////////////////////////////////////////////////////// //
 201 // should be called when OpenGL is initialized
 202 void loadMap (string mapname) {
 203   mapscripts.runUnloading(); // "map unloading" script
 204   clearMapScripts();
 205
 206   if (map !is null) map.clear();
 207   map = new LevelMap(mapname);
 208   curmapname = mapname;
 209
 210   ugInit(map.width*TileSize, map.height*TileSize);
 211
 212   map.oglBuildMega();
 213   mapTilesChanged = 0;
 214
 215   if (fboLevel !is null) fboLevel.clear();
 216   if (fboLevelLight !is null) fboLevelLight.clear();
 217   if (fboOrigBack !is null) fboOrigBack.clear();
 218   if (fboLMaskSmall !is null) fboLMaskSmall.clear();
 219
 220   fboLevel = new FBO(map.width*TileSize, map.height*TileSize, Texture.Option.Nearest); // final level render will be here
 221   fboLevelLight = new FBO(map.width*TileSize, map.height*TileSize, Texture.Option.Nearest); // level lights will be rendered here
 222   fboOrigBack = new FBO(map.width*TileSize, map.height*TileSize, Texture.Option.Nearest/*, Texture.Option.Depth*/); // background+foreground
 223   fboLMaskSmall = new FBO(map.width, map.height, Texture.Option.Nearest); // small lightmask
 224
 225   shadToPolar.exec((Shader shad) { shad["mapPixSize"] = SVec2F(map.width*TileSize-1, map.height*TileSize-1); });
 226   shadBlur.exec((Shader shad) { shad["mapPixSize"] = SVec2F(map.width*TileSize, map.height*TileSize); });
 227   shadBlurOcc.exec((Shader shad) { shad["mapPixSize"] = SVec2F(map.width*TileSize, map.height*TileSize); });
 228   shadAmbient.exec((Shader shad) { shad["mapPixSize"] = SVec2F(map.width*TileSize, map.height*TileSize); });
 229
 230   glActiveTexture(GL_TEXTURE0+0);
 231   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
 232   orthoCamera(vlWidth, vlHeight);
 233
 234   Actor.resetStorage();
 235
 236   setupMapScripts();
 237   mapscripts.runInit();
 238   loadMapMonsters();
 239   dotInit();
 240   mapscripts.runLoaded();
 241
 242   // save first snapshot
 243   if (prevFrameActorsData.length == 0) prevFrameActorsData = new ubyte[](Actor.actorSize*65536); // ~15-20 megabytes
 244   prevFrameActorOfs[] = uint.max; // just for fun
 245   Actor.saveSnapshot(prevFrameActorsData[], prevFrameActorOfs.ptr);
 246
 247   levelLoaded = true;
 248
 249   { import core.memory : GC; GC.collect(); }
 250 }
 251
 252
 253 // ////////////////////////////////////////////////////////////////////////// //
 254 //FIXME: optimize!
 255 __gshared uint mapTilesChanged = 0;
 256
 257
 258 //WARNING! this can be called only from DACS, so we don't have to sync it!
 259 public void mapDirty (uint layermask) { mapTilesChanged |= layermask; }
 260
 261
 262 void rebuildMapMegaTextures () {
 263   //fbo.replaceTexture
 264   //mapTilesChanged = false;
 265   //map.clearMegaTextures();
 266   map.oglBuildMega(mapTilesChanged);
 267   mapTilesChanged = 0;
 268   dotsAwake(); // let dormant dots fall
 269 }
 270
 271
 272 // ////////////////////////////////////////////////////////////////////////// //
 273 // messages
 274 struct Message {
 275   enum Phase { FadeIn, Stay, FadeOut }
 276   Phase phase;
 277   int alpha;
 278   int pauseMsecs;
 279   MonoTime removeTime;
 280   char[256] text;
 281   usize textlen;
 282 }
 283
 284 private import core.sync.mutex : Mutex;
 285
 286 __gshared Message[128] messages;
 287 __gshared uint messagesUsed = 0;
 288
 289 //__gshared Mutex messageLock;
 290 //shared static this () { messageLock = new Mutex(); }
 291
 292
 293 void addMessage (const(char)[] msgtext, int pauseMsecs=3000, bool noreplace=false) {
 294   //messageLock.lock();
 295   //scope(exit) messageLock.unlock();
 296   if (msgtext.length == 0) return;
 297   conwriteln(msgtext);
 298   if (pauseMsecs <= 50) return;
 299   if (messagesUsed == messages.length) {
 300     // remove top message
 301     foreach (immutable cidx; 1..messagesUsed) messages.ptr[cidx-1] = messages.ptr[cidx];
 302     messages.ptr[0].alpha = 255;
 303     --messagesUsed;
 304   }
 305   // quick replace
 306   if (!noreplace && messagesUsed == 1) {
 307     switch (messages.ptr[0].phase) {
 308       case Message.Phase.FadeIn:
 309         messages.ptr[0].phase = Message.Phase.FadeOut;
 310         break;
 311       case Message.Phase.Stay:
 312         messages.ptr[0].phase = Message.Phase.FadeOut;
 313         messages.ptr[0].alpha = 255;
 314         break;
 315       default:
 316     }
 317   }
 318   auto msg = messages.ptr+messagesUsed;
 319   ++messagesUsed;
 320   msg.phase = Message.Phase.FadeIn;
 321   msg.alpha = 0;
 322   msg.pauseMsecs = pauseMsecs;
 323   // copy text
 324   if (msgtext.length > msg.text.length) {
 325     msg.text = msgtext[0..msg.text.length];
 326     msg.textlen = msg.text.length;
 327   } else {
 328     msg.text[0..msgtext.length] = msgtext[];
 329     msg.textlen = msgtext.length;
 330   }
 331 }
 332
 333
 334 void doMessages (MonoTime curtime) {
 335   //messageLock.lock();
 336   //scope(exit) messageLock.unlock();
 337
 338   if (messagesUsed == 0) return;
 339   glEnable(GL_BLEND);
 340   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 341
 342   Message* msg;
 343
 344  again:
 345   msg = messages.ptr;
 346   final switch (msg.phase) {
 347     case Message.Phase.FadeIn:
 348       if ((msg.alpha += 10) >= 255) {
 349         msg.phase = Message.Phase.Stay;
 350         msg.removeTime = curtime+dur!"msecs"(msg.pauseMsecs);
 351         goto case; // to stay
 352       }
 353       glColor4f(1.0f, 1.0f, 1.0f, msg.alpha/255.0f);
 354       break;
 355     case Message.Phase.Stay:
 356       if (msg.removeTime <= curtime) {
 357         msg.alpha = 255;
 358         msg.phase = Message.Phase.FadeOut;
 359         goto case; // to fade
 360       }
 361       glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 362       break;
 363     case Message.Phase.FadeOut:
 364       if ((msg.alpha -= 10) <= 0) {
 365         if (--messagesUsed == 0) return;
 366         // remove this message
 367         foreach (immutable cidx; 1..messagesUsed+1) messages.ptr[cidx-1] = messages.ptr[cidx];
 368         goto again;
 369       }
 370       glColor4f(1.0f, 1.0f, 1.0f, msg.alpha/255.0f);
 371       break;
 372   }
 373
 374   smDrawText(10, 10, msg.text[0..msg.textlen]);
 375 }
 376
 377
 378 // ////////////////////////////////////////////////////////////////////////// //
 379 //mixin(Actor.FieldPropMixin!("0drawlistpos", uint));
 380
 381 mixin(Actor.FieldGetMixin!("classtype", StrId)); // fget_classtype
 382 mixin(Actor.FieldGetMixin!("classname", StrId)); // fget_classname
 383 mixin(Actor.FieldGetMixin!("x", int));
 384 mixin(Actor.FieldGetMixin!("y", int));
 385 mixin(Actor.FieldGetMixin!("s", int));
 386 mixin(Actor.FieldGetMixin!("radius", int));
 387 mixin(Actor.FieldGetMixin!("height", int));
 388 mixin(Actor.FieldGetMixin!("flags", uint));
 389 mixin(Actor.FieldGetMixin!("zAnimstate", StrId));
 390 mixin(Actor.FieldGetMixin!("zAnimidx", int));
 391 mixin(Actor.FieldGetMixin!("dir", uint));
 392 mixin(Actor.FieldGetMixin!("attLightXOfs", int));
 393 mixin(Actor.FieldGetMixin!("attLightYOfs", int));
 394 mixin(Actor.FieldGetMixin!("attLightRGBX", uint));
 395
 396 //mixin(Actor.FieldGetPtrMixin!("classtype", StrId)); // fget_classtype
 397 //mixin(Actor.FieldGetPtrMixin!("classname", StrId)); // fget_classname
 398 mixin(Actor.FieldGetPtrMixin!("x", int));
 399 mixin(Actor.FieldGetPtrMixin!("y", int));
 400 //mixin(Actor.FieldGetPtrMixin!("flags", uint));
 401 //mixin(Actor.FieldGetPtrMixin!("zAnimstate", StrId));
 402 //mixin(Actor.FieldGetPtrMixin!("zAnimidx", int));
 403 //mixin(Actor.FieldGetPtrMixin!("dir", uint));
 404 //mixin(Actor.FieldGetPtrMixin!("attLightXOfs", int));
 405 //mixin(Actor.FieldGetPtrMixin!("attLightYOfs", int));
 406 //mixin(Actor.FieldGetPtrMixin!("attLightRGBX", uint));
 407
 408
 409 // ////////////////////////////////////////////////////////////////////////// //
 410 __gshared int vportX0, vportY0, vportX1, vportY1;
 411
 412
 413 // ////////////////////////////////////////////////////////////////////////// //
 414 void renderLightAmbient() (int lightX, int lightY, int lightW, int lightH, in auto ref SVec4F lcol) {
 415   //conwriteln("!!!000: (", lightX, ",", lightY, ")-(", lightW, ",", lightH, "): r=", cast(uint)(255.0f*lcol.r), "; g=", cast(uint)(255.0f*lcol.g), "; b=", cast(uint)(255.0f*lcol.b), "; a=", cast(uint)(255.0f*lcol.a));
 416   if (lightW < 1 || lightH < 1) return;
 417   int lightX1 = lightX+lightW-1;
 418   int lightY1 = lightY+lightH-1;
 419   // clip light to viewport
 420   if (lightX < vportX0) lightX = vportX0;
 421   if (lightY < vportY0) lightY = vportY0;
 422   if (lightX1 > vportX1) lightX1 = vportX1;
 423   if (lightY1 > vportY1) lightY1 = vportY1;
 424   // is this light visible?
 425   //conwriteln("!!!001: (", lightX, ",", lightY, ")-(", lightX1, ",", lightY1, "): r=", cast(uint)(255.0f*lcol.r), "; g=", cast(uint)(255.0f*lcol.g), "; b=", cast(uint)(255.0f*lcol.b), "; a=", cast(uint)(255.0f*lcol.a));
 426   if (lightX1 < lightX || lightY1 < lightY || lightX > vportX1 || lightY > vportY1 || lightX1 < vportX0 || lightY1 < vportY0) return;
 427   //conwriteln("!!!002: (", lightX, ",", lightY, ")-(", lightX1, ",", lightY1, "): r=", cast(uint)(255.0f*lcol.r), "; g=", cast(uint)(255.0f*lcol.g), "; b=", cast(uint)(255.0f*lcol.b), "; a=", cast(uint)(255.0f*lcol.a));
 428
 429   fboLevelLight.exec({
 430     glEnable(GL_BLEND);
 431     glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 432     //glDisable(GL_BLEND);
 433     orthoCamera(map.width*TileSize, map.height*TileSize);
 434     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 435     shadAmbient.exec((Shader shad) {
 436       shad["lightColor"] = SVec4F(lcol.x, lcol.y, lcol.z, lcol.w);
 437       //shad["lightPos"] = SVec2F(lightX, lightY);
 438       glRectf(lightX, lightY, lightX1, lightY1);
 439     });
 440   });
 441 }
 442
 443
 444 // ////////////////////////////////////////////////////////////////////////// //
 445 void renderLight() (int lightX, int lightY, in auto ref SVec4F lcol, int lightRadius) {
 446   if (lightRadius < 2) return;
 447   if (lightRadius > MaxLightRadius) lightRadius = MaxLightRadius;
 448   int lightSize = lightRadius*2;
 449   // is this light visible?
 450   if (lightX <= -lightRadius || lightY <= -lightRadius || lightX-lightRadius >= map.width*TileSize || lightY-lightRadius >= map.height*TileSize) return;
 451
 452   // out of viewport -- do nothing
 453   if (lightX+lightRadius < vportX0 || lightY+lightRadius < vportY0) return;
 454   if (lightX-lightRadius > vportX1 || lightY-lightRadius > vportY1) return;
 455
 456   if (lightX >= 0 && lightY >= 0 && lightX < map.width*TileSize && lightY < map.height*TileSize &&
 457       map.teximgs[map.LightMask].imageData.colors.ptr[lightY*(map.width*TileSize)+lightX].a > 190) return;
 458
 459   // common color for all the following
 460   glDisable(GL_BLEND);
 461   glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 462
 463   // build 1d distance map to fboShadowMapId
 464   fboDistMap.ptr[lightRadius].exec({
 465     // no need to clear it, shader will take care of that
 466     shadToPolar.exec((Shader shad) {
 467       shad["lightTexSize"] = SVec2F(lightSize, lightSize);
 468       shad["lightPos"] = SVec2F(lightX, lightY);
 469       orthoCamera(lightSize, 1);
 470       // it doesn't matter what we will draw here, so just draw filled rect
 471       glRectf(0, 0, lightSize, 1);
 472     });
 473   });
 474
 475   // build light texture for blending
 476   fboOccluders.exec({
 477     // no need to clear it, shader will take care of that
 478     // debug
 479     //glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 480     //glClear(GL_COLOR_BUFFER_BIT);
 481     shadBlur.exec((Shader shad) {
 482       shad["lightTexSize"] = SVec2F(lightSize, MaxLightRadius*2); // x: size of distmap; y: size of this texture
 483       shad["lightColor"] = SVec4F(lcol.x, lcol.y, lcol.z, lcol.w);
 484       shad["lightPos"] = SVec2F(lightX-lightRadius, lightY-lightRadius);
 485       orthoCamera(fboOccluders.tex.width, fboOccluders.tex.height);
 486       //drawAtXY(fboDistMap[lightRadius].tex.tid, 0, 0, lightSize, lightSize);
 487       bindTexture(fboDistMap.ptr[lightRadius].tex.tid);
 488       glBegin(GL_QUADS);
 489         glTexCoord2f(0.0f, 0.0f); glVertex2i(0, 0); // top-left
 490         glTexCoord2f(1.0f, 0.0f); glVertex2i(lightSize, 0); // top-right
 491         glTexCoord2f(1.0f, 1.0f); glVertex2i(lightSize, lightSize); // bottom-right
 492         glTexCoord2f(0.0f, 1.0f); glVertex2i(0, lightSize); // bottom-left
 493       glEnd();
 494     });
 495   });
 496
 497   // blend light texture
 498   fboLevelLight.exec({
 499     glEnable(GL_BLEND);
 500     //glDisable(GL_BLEND);
 501     glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 502     orthoCamera(fboLevelLight.tex.width, fboLevelLight.tex.height);
 503     //drawAtXY(fboOccluders.tex, lightX-lightRadius, lightY-lightRadius, mirrorY:true);
 504     float occe = 1.0f*lightSize/(MaxLightRadius*2);
 505     float occs = 1.0f-occe;
 506     int x0 = lightX-lightRadius+0;
 507     int y1 = lightY-lightRadius+0;
 508     int x1 = lightX+lightRadius-1+1;
 509     int y0 = lightY+lightRadius-1+1;
 510     bindTexture(fboOccluders.tex.tid);
 511     glBegin(GL_QUADS);
 512       /*
 513       glTexCoord2f(0.0f, 0.0f); glVertex2i(x0, y0); // top-left
 514       glTexCoord2f(occe, 0.0f); glVertex2i(x1, y0); // top-right
 515       glTexCoord2f(occe, occe); glVertex2i(x1, y1); // bottom-right
 516       glTexCoord2f(0.0f, occe); glVertex2i(x0, y1); // bottom-left
 517       */
 518       glTexCoord2f(0.0f, occs); glVertex2i(x0, y0); // top-left
 519       glTexCoord2f(occe, occs); glVertex2i(x1, y0); // top-right
 520       glTexCoord2f(occe, 1.0f); glVertex2i(x1, y1); // bottom-right
 521       glTexCoord2f(0.0f, 1.0f); glVertex2i(x0, y1); // bottom-left
 522     glEnd();
 523     /*
 524     bindTexture(0);
 525     glRectf(x0, y0, x1, y1);
 526     */
 527     // and blend it again, with the shader that will touch only occluders
 528     shadBlurOcc.exec((Shader shad) {
 529       //shad["lightTexSize"] = SVec2F(lightSize, lightSize);
 530       shad["lightTexSize"] = SVec2F(lightSize, fboOccluders.tex.height);
 531       shad["lightColor"] = SVec4F(lcol.x, lcol.y, lcol.z, lcol.w);
 532       shad["lightPos"] = SVec2F(lightX, lightY);
 533       //shad["lightPos"] = SVec2F(lightX-lightRadius, lightY-lightRadius);
 534       bindTexture(fboOccluders.tex.tid);
 535       glBegin(GL_QUADS);
 536         glTexCoord2f(0.0f, occs); glVertex2i(x0, y0); // top-left
 537         glTexCoord2f(occe, occs); glVertex2i(x1, y0); // top-right
 538         glTexCoord2f(occe, 1.0f); glVertex2i(x1, y1); // bottom-right
 539         glTexCoord2f(0.0f, 1.0f); glVertex2i(x0, y1); // bottom-left
 540       glEnd();
 541       //drawAtXY(fboOccluders.tex.tid, lightX-lightRadius, lightY-lightRadius, lightSize, lightSize, mirrorY:true);
 542     });
 543   });
 544 }
 545
 546
 547 // ////////////////////////////////////////////////////////////////////////// //
 548 __gshared int testLightX = vlWidth/2, testLightY = vlHeight/2;
 549 __gshared bool testLightMoved = false;
 550 //__gshared int mapOfsX, mapOfsY;
 551 //__gshared bool movement = false;
 552 __gshared float iLiquidTime = 0.0;
 553 //__gshared bool altMove = false;
 554
 555
 556 void renderScene (MonoTime curtime) {
 557   //enum BackIntens = 0.05f;
 558   enum BackIntens = 0.0f;
 559
 560   gloStackClear();
 561   float atob = (curtime > lastthink ? cast(float)((curtime-lastthink).total!"msecs")/cast(float)((nextthink-lastthink).total!"msecs") : 1.0f);
 562   if (gamePaused || inEditMode) atob = 1.0f;
 563   //{ import core.stdc.stdio; printf("atob=%f\n", cast(double)atob); }
 564   /*
 565   {
 566     int framelen = cast(int)((nextthink-lastthink).total!"msecs");
 567     int curfp = cast(int)((curtime-lastthink).total!"msecs");
 568     { import core.stdc.stdio; printf("framelen=%d; curfp=%d\n", framelen, curfp); }
 569   }
 570   */
 571
 572   int mofsx, mofsy; // camera offset, will be set in background layer builder
 573
 574   if (mapTilesChanged != 0) rebuildMapMegaTextures();
 575
 576   // build background layer
 577   fboOrigBack.exec({
 578     //glDisable(GL_BLEND);
 579     //glClearDepth(1.0f);
 580     //glDepthFunc(GL_LESS);
 581     //glDepthFunc(GL_NEVER);
 582     glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 583     glClear(GL_COLOR_BUFFER_BIT/*|GL_DEPTH_BUFFER_BIT*/);
 584     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 585     orthoCamera(map.width*TileSize, map.height*TileSize);
 586
 587     glEnable(GL_BLEND);
 588     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 589     // draw sky
 590     /*
 591     drawAtXY(map.skytexgl.tid, mapOfsX/2-map.MapSize*TileSize, mapOfsY/2-map.MapSize*TileSize, map.MapSize*TileSize, map.MapSize*TileSize);
 592     drawAtXY(map.skytexgl.tid, mapOfsX/2-map.MapSize*TileSize, mapOfsY/2, map.MapSize*TileSize, map.MapSize*TileSize);
 593     drawAtXY(map.skytexgl.tid, mapOfsX/2, mapOfsY/2-map.MapSize*TileSize, map.MapSize*TileSize, map.MapSize*TileSize);
 594     drawAtXY(map.skytexgl.tid, mapOfsX/2, mapOfsY/2, map.MapSize*TileSize, map.MapSize*TileSize);
 595     */
 596     drawAtXY(map.skytexgl.tid, 0, 0, map.MapSize*TileSize, map.MapSize*TileSize);
 597     // draw background
 598     drawAtXY(map.texgl.ptr[map.Back], 0, 0);
 599     // draw distorted liquid areas
 600     shadLiquidDistort.exec((Shader shad) {
 601       shad["iDistortTime"] = iLiquidTime;
 602       drawAtXY(map.texgl.ptr[map.AllLiquids], 0, 0);
 603     });
 604     // monsters, items; we'll do linear interpolation here
 605     glColor3f(1.0f, 1.0f, 1.0f);
 606     //glEnable(GL_DEPTH_TEST);
 607     attachedLightCount = 0;
 608
 609     // who cares about memory?!
 610     // draw order: players, items, monsters, other
 611     static struct DrawInfo {
 612       ActorDef adef;
 613       ActorId aid;
 614       int actorX, actorY;
 615       @disable this (this); // no copies
 616     }
 617     enum { Pixels, Players, Items, Monsters, Other }
 618     __gshared DrawInfo[65536][4] drawlists;
 619     __gshared uint[4] dlpos;
 620     DrawInfo camchickdi;
 621
 622     dlpos[] = 0;
 623
 624     Actor.forEach((ActorId me) {
 625       //me.fprop_0drawlistpos = 0;
 626       if (auto adef = findActorDef(me)) {
 627         uint dlnum = Other;
 628         switch (adef.classtype.get) {
 629           case "monster": dlnum = (adef.classname.get != "Player" ? Monsters : Players); break;
 630           case "item": dlnum = Items; break;
 631           default: dlnum = Other; break;
 632         }
 633         if (me.fget_flags&AF_PIXEL) dlnum = Pixels;
 634         int actorX, actorY; // current actor position
 635         {
 636           auto ofs = prevFrameActorOfs.ptr[me.id&0xffff];
 637           if (frameInterpolation && ofs < uint.max-1 && Actor.isSameSavedActor(me.id, prevFrameActorsData.ptr, ofs)) {
 638             import core.stdc.math : roundf;
 639             auto xptr = prevFrameActorsData.ptr+ofs;
 640             int ox = xptr.fgetp_x;
 641             int nx = me.fget_x;
 642             int oy = xptr.fgetp_y;
 643             int ny = me.fget_y;
 644             actorX = cast(int)(ox+roundf((nx-ox)*atob));
 645             actorY = cast(int)(oy+roundf((ny-oy)*atob));
 646             //conwriteln("actor ", me.id, "; o=(", ox, ",", oy, "); n=(", nx, ",", ny, "); p=(", x, ",", y, ")");
 647           } else {
 648             actorX = me.fget_x;
 649             actorY = me.fget_y;
 650           }
 651         }
 652         if (me.id == cameraChick.id) {
 653           camchickdi.adef = adef;
 654           camchickdi.aid = me;
 655           camchickdi.actorX = actorX;
 656           camchickdi.actorY = actorY;
 657         }
 658         // draw sprite
 659         if ((me.fget_flags&AF_NODRAW) == 0) {
 660           //auto dl = &drawlists[dlnum][dlpos.ptr[dlnum]];
 661           //me.fprop_0drawlistpos = (dlpos.ptr[dlnum]&0xffff)|((dlnum&0xff)<<16);
 662           auto dl = drawlists.ptr[dlnum].ptr+dlpos.ptr[dlnum];
 663           ++dlpos.ptr[dlnum];
 664           dl.adef = adef;
 665           dl.aid = me;
 666           dl.actorX = actorX;
 667           dl.actorY = actorY;
 668         }
 669         // process attached lights
 670         if ((me.fget_flags&AF_NOLIGHT) == 0) {
 671           uint alr = me.fget_attLightRGBX;
 672           bool isambient = (me.fget_classtype.get == "light" && me.fget_classname.get == "Ambient");
 673           if ((alr&0xff) >= 4 || (isambient && me.fget_radius >= 1 && me.fget_height >= 1)) {
 674             //if (isambient) conwriteln("isambient: ", isambient, "; x=", me.fget_x, "; y=", me.fget_y, "; w=", me.fget_radius, "; h=", me.fget_height);
 675             // yep, add it
 676             auto li = attachedLights.ptr+attachedLightCount;
 677             ++attachedLightCount;
 678             li.type = (!isambient ? AttachedLightInfo.Type.Point : AttachedLightInfo.Type.Ambient);
 679             li.x = actorX+me.fget_attLightXOfs;
 680             li.y = actorY+me.fget_attLightYOfs;
 681             li.r = ((alr>>24)&0xff)/255.0f; // red or intensity
 682             if ((alr&0x00_ff_ff_00U) == 0x00_00_01_00U) {
 683               li.uncolored = true;
 684             } else {
 685               li.g = ((alr>>16)&0xff)/255.0f;
 686               li.b = ((alr>>8)&0xff)/255.0f;
 687               li.uncolored = false;
 688             }
 689             li.radius = (alr&0xff);
 690             if (li.radius > MaxLightRadius) li.radius = MaxLightRadius;
 691             if (isambient) {
 692               li.w = me.fget_radius;
 693               li.h = me.fget_height;
 694             }
 695           }
 696         }
 697       } else {
 698         conwriteln("not found actor ", me.id, " (", me.classtype!string, ":", me.classname!string, ")");
 699       }
 700     });
 701
 702     // draw actor lists
 703     foreach_reverse (uint dlnum; 0..drawlists.length) {
 704       if (dlnum == Pixels) continue;
 705       auto dl = drawlists.ptr[dlnum].ptr;
 706       if (dlnum == Players) dl += dlpos.ptr[dlnum]-1;
 707       foreach (uint idx; 0..dlpos.ptr[dlnum]) {
 708         auto me = dl.aid;
 709         if (auto isp = dl.adef.animSpr(me.fget_zAnimstate, me.fget_dir, me.fget_zAnimidx)) {
 710           //drawAtXY(isp.tex, dl.actorX-isp.vga.sx, dl.actorY-isp.vga.sy);
 711           isp.drawAtXY(dl.actorX, dl.actorY);
 712         }
 713         if (dlnum != Players) ++dl; else --dl;
 714       }
 715     }
 716     // draw pixels
 717     if (dlpos[Pixels]) {
 718       bindTexture(0);
 719       bool pointsStarted = false;
 720       Color lastColor = Color(0, 0, 0, 0);
 721       auto dl = drawlists.ptr[Pixels].ptr;
 722       foreach (uint idx; 0..dlpos.ptr[Pixels]) {
 723         auto me = dl.aid;
 724         auto s = me.fget_s;
 725         if (s < 0 || s > 255) continue; //FIXME
 726         Color clr = d2dpal.ptr[s&0xff];
 727         if (clr.a == 0) continue;
 728         if (clr != lastColor) {
 729           if (pointsStarted) glEnd();
 730           glColor4f(clr.r/255.0f, clr.g/255.0f, clr.b/255.0f, clr.a/255.0f);
 731           lastColor = clr;
 732           pointsStarted = false;
 733         }
 734         if (!pointsStarted) {
 735           glBegin(GL_POINTS);
 736           pointsStarted = true;
 737         }
 738         glVertex2i(dl.actorX, dl.actorY);
 739         ++dl;
 740       }
 741       if (pointsStarted) {
 742         glEnd();
 743         glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 744       }
 745     }
 746
 747     // camera movement
 748     if (/*altMove || movement ||*/ scale == 1 || !cameraChick.valid) {
 749       mofsx = 0;
 750       mofsy = 0;
 751       vportX0 = 0;
 752       vportY0 = 0;
 753       vportX1 = map.width*TileSize;
 754       vportY1 = map.height*TileSize;
 755     } else {
 756       int tiltHeight = /*getMapViewHeight()*/(vlHeight/scale)/4;
 757       int vy = cameraChick.looky!int;
 758       if (vy < -tiltHeight) vy = -tiltHeight; else if (vy > tiltHeight) vy = tiltHeight;
 759       int swdt = vlWidth/scale;
 760       int shgt = vlHeight/scale;
 761       int x = camchickdi.actorX-swdt/2;
 762       int y = (camchickdi.actorY+vy)-shgt/2;
 763       if (x < 0) x = 0; else if (x >= map.width*TileSize-swdt) x = map.width*TileSize-swdt-1;
 764       if (y < 0) y = 0; else if (y >= map.height*TileSize-shgt) y = map.height*TileSize-shgt-1;
 765       mofsx = x*2;
 766       mofsy = y*2;
 767       vportX0 = mofsx/scale;
 768       vportY0 = mofsy/scale;
 769       vportX1 = vportX0+vlWidth/scale;
 770       vportY1 = vportY0+vlHeight/scale;
 771     }
 772
 773     //glDisable(GL_DEPTH_TEST);
 774     // draw dots
 775     dotDraw(atob);
 776     // do liquid coloring
 777     drawAtXY(map.texgl.ptr[map.LiquidMask], 0, 0);
 778     // foreground -- hide secrets, draw lifts and such
 779     drawAtXY(map.texgl.ptr[map.Front], 0, 0);
 780     /+
 781     {
 782       enum r = 255;
 783       enum g = 0;
 784       enum b = 0;
 785       enum a = 255;
 786       bindTexture(0);
 787       glColor4f(r/255.0f, g/255.0f, b/255.0f, a/255.0f);
 788       glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
 789       if (cameraChick.valid) {
 790         glBegin(GL_POINTS);
 791         glVertex2i(camchickdi.actorX, camchickdi.actorY-70);
 792         glEnd();
 793         //glRectf(camchickdi.actorX, camchickdi.actorY-70, camchickdi.actorX+4, camchickdi.actorY-70+4);
 794       }
 795       //glRectf(0, 0, 300, 300);
 796       glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 797     }
 798     +/
 799   });
 800
 801
 802   if (doLighting) {
 803     glDisable(GL_BLEND);
 804     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 805
 806     // make smaller occluder texture, so we can trace faster
 807     //assert(fboLMaskSmall.tex.width == map.width);
 808     //assert(fboLMaskSmall.tex.height == map.height);
 809     fboLMaskSmall.exec({
 810       orthoCamera(map.width, map.height);
 811       drawAtXY(map.texgl.ptr[map.LightMask].tid, 0, 0, map.width, map.height, mirrorY:true);
 812     });
 813
 814     // clear light layer
 815     fboLevelLight.exec({
 816       glClearColor(BackIntens, BackIntens, BackIntens, 1.0f);
 817       //glClearColor(0.15f, 0.15f, 0.15f, 1.0f);
 818       ////glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
 819       glClear(GL_COLOR_BUFFER_BIT);
 820     });
 821
 822     // texture 1 is background
 823     glActiveTexture(GL_TEXTURE0+1);
 824     glBindTexture(GL_TEXTURE_2D, fboOrigBack.tex.tid);
 825     // texture 2 is occluders
 826     glActiveTexture(GL_TEXTURE0+2);
 827     glBindTexture(GL_TEXTURE_2D, map.texgl.ptr[map.LightMask].tid);
 828     // texture 3 is small occluder map
 829     glActiveTexture(GL_TEXTURE0+3);
 830     glBindTexture(GL_TEXTURE_2D, fboLMaskSmall.tex.tid);
 831     // done texture assign
 832     glActiveTexture(GL_TEXTURE0+0);
 833
 834     /*
 835     enum LYOfs = 1;
 836
 837     renderLight( 27, 391-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 100);
 838     renderLight(542, 424-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 100);
 839     renderLight(377, 368-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f),  32);
 840     renderLight(147, 288-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f),  64);
 841     renderLight( 71, 200-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 128);
 842     renderLight(249, 200-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 128);
 843     renderLight(426, 200-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 128);
 844     renderLight(624, 200-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 128);
 845     renderLight(549, 298-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f),  64);
 846     renderLight( 74, 304-0+LYOfs, SVec4F(0.0f, 0.0f, 0.0f, 1.0f),  32);
 847
 848     renderLight(24*TileSize+4, (24+18)*TileSize-2+LYOfs, SVec4F(0.6f, 0.0f, 0.0f, 1.0f), 128);
 849
 850     renderLight(280, 330, SVec4F(0.0f, 0.0f, 0.0f, 1.0f), 64);
 851     */
 852
 853     // attached lights
 854     foreach (ref li; attachedLights[0..attachedLightCount]) {
 855       if (li.type == AttachedLightInfo.Type.Ambient) {
 856         //conwriteln("ambient: x=", li.x, "; y=", li.y, "; w=", li.w, "; h=", li.h);
 857         // ambient light
 858         if (li.uncolored) {
 859           renderLightAmbient(li.x, li.y, li.w, li.h, SVec4F(0.0f, 0.0f, 0.0f, li.r));
 860         } else {
 861           renderLightAmbient(li.x, li.y, li.w, li.h, SVec4F(li.r, li.g, li.b, 1.0f));
 862         }
 863       } else if (li.type == AttachedLightInfo.Type.Point) {
 864         // point light
 865         if (li.uncolored) {
 866           renderLight(li.x, li.y, SVec4F(0.0f, 0.0f, 0.0f, li.r), li.radius);
 867         } else {
 868           renderLight(li.x, li.y, SVec4F(li.r, li.g, li.b, 1.0f), li.radius);
 869         }
 870       }
 871     }
 872
 873     {
 874       if (testLightMoved) {
 875         testLightX = testLightX/scale+mofsx/scale;
 876         testLightY = testLightY/scale+mofsy/scale;
 877         testLightMoved = false;
 878       }
 879       foreach (immutable _; 0..1) {
 880         renderLight(testLightX, testLightY, SVec4F(0.3f, 0.3f, 0.0f, 1.0f), 96);
 881       }
 882     }
 883
 884     glActiveTexture(GL_TEXTURE0+1);
 885     glBindTexture(GL_TEXTURE_2D, 0);
 886     glActiveTexture(GL_TEXTURE0+2);
 887     glBindTexture(GL_TEXTURE_2D, 0);
 888     glActiveTexture(GL_TEXTURE0+3);
 889     glBindTexture(GL_TEXTURE_2D, 0);
 890     glActiveTexture(GL_TEXTURE0+0);
 891
 892
 893     // draw scaled level
 894     /+
 895     shadScanlines.exec((Shader shad) {
 896       shad["scanlines"] = scanlines;
 897       glClearColor(BackIntens, BackIntens, BackIntens, 1.0f);
 898       glClear(GL_COLOR_BUFFER_BIT);
 899       orthoCamera(vlWidth, vlHeight);
 900       //orthoCamera(map.width*TileSize*scale, map.height*TileSize*scale);
 901       //glMatrixMode(GL_MODELVIEW);
 902       //glLoadIdentity();
 903       //glTranslatef(0.375, 0.375, 0); // to be pixel-perfect
 904       // somehow, FBO objects are mirrored; wtf?!
 905       drawAtXY(fboLevel.tex.tid, -mapOfsX, -mapOfsY, map.width*TileSize*scale, map.height*TileSize*scale, mirrorY:true);
 906       //glLoadIdentity();
 907     });
 908     +/
 909
 910     /*
 911     fboLevelLight.exec({
 912       smDrawText(map.width*TileSize/2, map.height*TileSize/2, "Testing...");
 913     });
 914     */
 915   }
 916
 917   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
 918
 919   glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 920   orthoCamera(map.width*TileSize, map.height*TileSize);
 921   glEnable(GL_BLEND);
 922   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 923
 924
 925   glDisable(GL_BLEND);
 926
 927   /*
 928   fboOrigBack.exec({
 929     //auto img = smfont.ptr[0x39];
 930     auto img = fftest;
 931     if (img !is null) {
 932       //conwriteln("img.sx=", img.sx, "; img.sy=", img.sy, "; ", img.width, "x", img.height);
 933       drawAtXY(img.tex, 10-img.sx, 10-img.sy);
 934     }
 935   });
 936   */
 937
 938
 939   /+
 940   { // http://stackoverflow.com/questions/7207422/setting-up-opengl-multiple-render-targets
 941     GLenum[1] buffers = [ GL_BACK_LEFT, /*GL_COLOR_ATTACHMENT0_EXT*/ ];
 942     //GLenum[1] buffers = [ GL_NONE, /*GL_COLOR_ATTACHMENT0_EXT*/ ];
 943     glDrawBuffers(1, buffers.ptr);
 944   }
 945   +/
 946
 947
 948   orthoCamera(vlWidth, vlHeight);
 949   auto tex = (doLighting ? fboLevelLight.tex.tid : fboOrigBack.tex.tid);
 950   drawAtXY(tex, -mofsx, -mofsy, map.width*TileSize*scale, map.height*TileSize*scale, mirrorY:true);
 951
 952   if (levelLoaded) {
 953     hudScripts.runDraw();
 954   }
 955
 956   //drawAtXY(map.texgl.ptr[map.LightMask].tid, -mofsx, -mofsy, map.width*TileSize*scale, map.height*TileSize*scale, mirrorY:true);
 957   //drawAtXY(fboLMaskSmall.tex.tid, 0, 0, map.width*TileSize, map.height*TileSize);
 958
 959   if (inEditMode) {
 960     glEnable(GL_BLEND);
 961     //glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 962     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 963     glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 964     editorUpdateImage();
 965     fboEditor.tex.setFromImage(editorImg);
 966     drawAtXY(fboEditor.tex, 0, 0);
 967     glDisable(GL_BLEND);
 968   }
 969
 970   doMessages(curtime);
 971 }
 972
 973
 974 // ////////////////////////////////////////////////////////////////////////// //
 975 // returns time slept
 976 int sleepAtMaxMsecs (int msecs) {
 977   if (msecs > 0) {
 978     import core.sys.posix.signal : timespec;
 979     import core.sys.posix.time : nanosleep;
 980     timespec ts = void, tpassed = void;
 981     ts.tv_sec = 0;
 982     ts.tv_nsec = msecs*1000*1000+(500*1000); // milli to nano
 983     nanosleep(&ts, &tpassed);
 984     return (ts.tv_nsec-tpassed.tv_nsec)/(1000*1000);
 985   } else {
 986     return 0;
 987   }
 988 }
 989
 990
 991 // ////////////////////////////////////////////////////////////////////////// //
 992 mixin(import("editor.d"));
 993
 994
 995 // ////////////////////////////////////////////////////////////////////////// //
 996 // rendering thread
 997 shared int diedie = 0;
 998
 999 enum D2DFrameTime = 55; // milliseconds
1000 enum MinFrameTime = 1000/60; // ~60 FPS
1001
1002 public void renderThread (Tid starterTid) {
1003   enum BoolOptVarMsgMixin(string varname) =
1004     "if (msg.toggle) msg.value = !"~varname~";\n"~
1005     "if ("~varname~" != msg.value) "~varname~" = msg.value; else msg.showMessage = false;\n";
1006
1007   send(starterTid, 42);
1008   try {
1009     MonoTime curtime = MonoTime.currTime;
1010
1011     lastthink = curtime; // for interpolator
1012     nextthink = curtime+dur!"msecs"(D2DFrameTime);
1013     MonoTime nextvframe = curtime;
1014
1015     enum MaxFPSFrames = 16;
1016     float frtimes = 0.0f;
1017     int framenum = 0;
1018     int prevFPS = -1;
1019     int hushFrames = 6; // ignore first `hushFrames` frames overtime
1020     MonoTime prevFrameStartTime = curtime;
1021
1022     bool vframeWasLost = false;
1023
1024     void resetFrameTimers () {
1025       MonoTime curtime = MonoTime.currTime;
1026       lastthink = curtime; // for interpolator
1027       nextthink = curtime+dur!"msecs"(D2DFrameTime);
1028       nextvframe = curtime;
1029     }
1030
1031     void loadNewLevel (string name) {
1032       /*
1033       if (levelLoaded) {
1034         conwriteln("ERROR: can't load new levels yet");
1035         return;
1036       }
1037       */
1038       if (name.length == 0) {
1039         conwriteln("ERROR: can't load empty level!");
1040       }
1041       conwriteln("loading map '", name, "'");
1042       loadMap(name);
1043       resetFrameTimers();
1044     }
1045
1046     void receiveMessages () {
1047       for (;;) {
1048         import core.time : Duration;
1049         //conwriteln("rendering thread: waiting for messages...");
1050         auto got = receiveTimeout(
1051           Duration.zero, // don't wait
1052           (TMsgMessage msg) {
1053             addMessage(msg.text[0..msg.textlen], msg.pauseMsecs, msg.noreplace);
1054           },
1055           (TMsgLoadLevel msg) {
1056             nextmapname = null; // clear "exit" flag
1057             loadNewLevel(msg.mapfile[0..msg.textlen].idup);
1058           },
1059           (TMsgSkipLevel msg) {
1060             string mn = genNextMapName(0);
1061             if (mn.length) {
1062               nextmapname = null; // clear "exit" flag
1063               loadNewLevel(mn);
1064             }
1065           },
1066           (TMsgIntOption msg) {
1067             final switch (msg.type) with (TMsgIntOption.Type) {
1068               case Scale:
1069                 if (msg.value >= 1 && msg.value <= 2) scale = msg.value;
1070                 break;
1071             }
1072           },
1073           (TMsgBoolOption msg) {
1074             final switch (msg.type) with (TMsgBoolOption.Type) {
1075               case Interpolation: mixin(BoolOptVarMsgMixin!"frameInterpolation"); break;
1076               case Lighting: mixin(BoolOptVarMsgMixin!"doLighting"); break;
1077               case Pause: mixin(BoolOptVarMsgMixin!"gamePaused"); break;
1078               case EditMode:
1079                 if (msg.toggle) msg.value = !inEditMode;
1080                 if (inEditMode != msg.value) {
1081                   inEditMode = msg.value;
1082                   if (msg.value) sdwindow.hideCursor(); else sdwindow.showCursor();
1083                 } else {
1084                   msg.showMessage = false;
1085                 }
1086                 break;
1087               mixin(BoolOptVarMsgMixin!"inEditMode"); break;
1088               case CheatNoDoors: mixin(BoolOptVarMsgMixin!"cheatNoDoors"); break;
1089               case CheatNoWallClip: mixin(BoolOptVarMsgMixin!"cheatNoWallClip"); break;
1090             }
1091             if (msg.showMessage) {
1092               char[128] mbuf;
1093               uint msgpos;
1094               void putStr(T) (T s) if (is(T : const(char)[])) {
1095                 foreach (char ch; s) {
1096                   if (msgpos >= mbuf.length) break;
1097                   mbuf.ptr[msgpos++] = ch;
1098                 }
1099               }
1100               putStr("Option \"");
1101               { import std.conv : to; putStr(to!string(msg.type)); }
1102               putStr("\": O");
1103               if (msg.value) putStr("N"); else putStr("FF");
1104               addMessage(mbuf[0..msgpos]);
1105             }
1106           },
1107           (TMsgTestLightMove msg) {
1108             testLightX = msg.x;
1109             testLightY = msg.y;
1110             testLightMoved = true;
1111           },
1112           (TMsgMouseEvent msg) { editorMouseEvent(msg); },
1113           (TMsgKeyEvent msg) { editorKeyEvent(msg); },
1114           (Variant v) {
1115             conwriteln("WARNING: unknown thread message received and ignored");
1116           },
1117         );
1118         if (!got) {
1119           // no more messages
1120           //conwriteln("rendering thread: no more messages");
1121           break;
1122         }
1123       }
1124       if (nextmapname.length) {
1125         string mn = nextmapname;
1126         nextmapname = null; // clear "exit" flag
1127         loadNewLevel(mn);
1128       }
1129     }
1130
1131     // "D2D frames"; curtime should be set; return `true` if frame was processed; will fix `curtime`
1132     bool doThinkFrame () {
1133       if (curtime >= nextthink) {
1134         lastthink = curtime;
1135         while (nextthink <= curtime) nextthink += dur!"msecs"(D2DFrameTime);
1136         if (levelLoaded) {
1137           // save snapshot and other data for interpolator
1138           Actor.saveSnapshot(prevFrameActorsData[], prevFrameActorOfs.ptr);
1139           if (!gamePaused && !inEditMode) {
1140             // process actors
1141             doActorsThink();
1142             dotThink();
1143           }
1144         }
1145         // some timing
1146         auto tm = MonoTime.currTime;
1147         int thinkTime = cast(int)((tm-curtime).total!"msecs");
1148         if (thinkTime > 9) { import core.stdc.stdio; printf("spent on thinking: %d msecs\n", thinkTime); }
1149         curtime = tm;
1150         return true;
1151       } else {
1152         return false;
1153       }
1154     }
1155
1156     // "video frames"; curtime should be set; return `true` if frame was processed; will fix `curtime`
1157     bool doVFrame () {
1158       version(dont_use_vsync) {
1159         // timer
1160         enum doCheckTime = true;
1161       } else {
1162         // vsync
1163         __gshared bool prevLost = false;
1164         bool doCheckTime = vframeWasLost;
1165         if (vframeWasLost) {
1166           if (!prevLost) {
1167             { import core.stdc.stdio; printf("frame was lost!\n"); }
1168           }
1169           prevLost = true;
1170         } else {
1171           prevLost = false;
1172         }
1173       }
1174       if (doCheckTime) {
1175         if (curtime < nextvframe) return false;
1176         version(dont_use_vsync) {
1177           if (curtime > nextvframe) {
1178             auto overtime = cast(int)((curtime-nextvframe).total!"msecs");
1179             if (overtime > 2500) {
1180               if (hushFrames) {
1181                 --hushFrames;
1182               } else {
1183                 { import core.stdc.stdio; printf("  spent whole %d msecs\n", overtime); }
1184               }
1185             }
1186           }
1187         }
1188       }
1189       while (nextvframe <= curtime) nextvframe += dur!"msecs"(MinFrameTime);
1190       bool ctset = false;
1191       {
1192         sdwindow.mtLock();
1193         scope(exit) sdwindow.mtUnlock();
1194         ctset = sdwindow.setAsCurrentOpenGlContextNT;
1195       }
1196       // if we can't set context, pretend that videoframe was processed; this should solve problem with vsync and invisible window
1197       if (ctset) {
1198         // render scene
1199         iLiquidTime = cast(float)((curtime-MonoTime.zero).total!"msecs"%10000000)/18.0f*0.04f;
1200         receiveMessages(); // here, 'cause we need active OpenGL context for some messages
1201         if (levelLoaded) {
1202           renderScene(curtime);
1203         } else {
1204           //renderLoading(curtime);
1205         }
1206         sdwindow.mtLock();
1207         scope(exit) sdwindow.mtUnlock();
1208         sdwindow.swapOpenGlBuffers();
1209         glFinish();
1210         sdwindow.releaseCurrentOpenGlContext();
1211         vframeWasLost = false;
1212       } else {
1213         vframeWasLost = true;
1214         { import core.stdc.stdio; printf("xframe was lost!\n"); }
1215       }
1216       curtime = MonoTime.currTime;
1217       return true;
1218     }
1219
1220     for (;;) {
1221       if (sdwindow.closed) break;
1222       if (atomicLoad(diedie) > 0) break;
1223
1224       curtime = MonoTime.currTime;
1225       auto fstime = curtime;
1226
1227       doThinkFrame(); // this will fix curtime if necessary
1228       if (doVFrame()) {
1229         if (!vframeWasLost) {
1230           // fps
1231           auto frameTime = cast(float)(curtime-prevFrameStartTime).total!"msecs"/1000.0f;
1232           prevFrameStartTime = curtime;
1233           frtimes += frameTime;
1234           if (++framenum >= MaxFPSFrames || frtimes >= 3.0f) {
1235             import std.string : format;
1236             int newFPS = cast(int)(cast(float)MaxFPSFrames/frtimes+0.5);
1237             if (newFPS != prevFPS) {
1238               sdwindow.title = "%s / FPS:%s".format("D2D", newFPS);
1239               prevFPS = newFPS;
1240             }
1241             framenum = 0;
1242             frtimes = 0.0f;
1243           }
1244         }
1245       }
1246
1247       curtime = MonoTime.currTime;
1248
1249       // now sleep until next "video" or "think" frame
1250       if (nextthink > curtime && nextvframe > curtime) {
1251         // let's decide
1252         immutable nextVideoFrameSleep = cast(int)((nextvframe-curtime).total!"msecs");
1253         immutable nextThinkFrameSleep = cast(int)((nextthink-curtime).total!"msecs");
1254         immutable sleepTime = (nextVideoFrameSleep < nextThinkFrameSleep ? nextVideoFrameSleep : nextThinkFrameSleep);
1255         sleepAtMaxMsecs(sleepTime);
1256         //curtime = MonoTime.currTime;
1257       }
1258     }
1259   } catch (Throwable e) {
1260     // here, we are dead and fucked (the exact order doesn't matter)
1261     import core.stdc.stdlib : abort;
1262     import core.stdc.stdio : fprintf, stderr;
1263     import core.memory : GC;
1264     GC.disable(); // yeah
1265     thread_suspendAll(); // stop right here, you criminal scum!
1266     auto s = e.toString();
1267     fprintf(stderr, "\n=== FATAL ===\n%.*s\n", cast(uint)s.length, s.ptr);
1268     abort(); // die, you bitch!
1269     /*
1270     import core.stdc.stdio;
1271     fprintf(stderr, "FUUUUUUUUUUUUUUUUUUUUUUUUUU\n");
1272     import std.stdio : stderr;
1273     writeln(
1274     for (;;) {
1275       if (sdwindow.closed) break;
1276       if (atomicLoad(diedie) > 0) break;
1277       sleepAtMaxMsecs(100);
1278     }
1279     */
1280   }
1281   atomicStore(diedie, 2);
1282 }
1283
1284
1285 // ////////////////////////////////////////////////////////////////////////// //
1286 __gshared Tid renderTid;
1287 shared bool renderThreadStarted = false;
1288
1289
1290 public void startRenderThread () {
1291   if (!cas(&renderThreadStarted, false, true)) {
1292     assert(0, "render thread already started!");
1293   }
1294   renderTid = spawn(&renderThread, thisTid);
1295   setMaxMailboxSize(renderTid, 1024, OnCrowding.throwException); //FIXME
1296   // wait for "i'm ready" signal
1297   receive(
1298     (int ok) {
1299       if (ok != 42) assert(0, "wtf?!");
1300     },
1301   );
1302   conwriteln("rendering thread started");
1303 }
1304
1305
1306 // ////////////////////////////////////////////////////////////////////////// //
1307 public void closeWindow () {
1308   if (atomicLoad(diedie) != 2) {
1309     atomicStore(diedie, 1);
1310     while (atomicLoad(diedie) != 2) {}
1311   }
1312   if (!sdwindow.closed) {
1313     flushGui();
1314     sdwindow.close();
1315   }
1316 }
1317
1318
1319 // ////////////////////////////////////////////////////////////////////////// //
1320 // thread messages
1321
1322
1323 // ////////////////////////////////////////////////////////////////////////// //
1324 struct TMsgMouseEvent {
1325   MouseEventType type;
1326   int x, y;
1327   int dx, dy;
1328   MouseButton button; /// See $(LREF MouseButton)
1329   int modifierState; /// See $(LREF ModifierState)
1330 }
1331
1332 public void postMouseEvent() (in auto ref MouseEvent evt) {
1333   if (!atomicLoad(renderThreadStarted)) return;
1334   TMsgMouseEvent msg;
1335   msg.type = evt.type;
1336   msg.x = evt.x;
1337   msg.y = evt.y;
1338   msg.dx = evt.dx;
1339   msg.dy = evt.dy;
1340   msg.button = evt.button;
1341   msg.modifierState = evt.modifierState;
1342   send(renderTid, msg);
1343 }
1344
1345
1346 // ////////////////////////////////////////////////////////////////////////// //
1347 struct TMsgKeyEvent {
1348   Key key;
1349   uint hardwareCode;
1350   bool pressed;
1351   dchar character;
1352   uint modifierState;
1353 }
1354
1355 public void postKeyEvent() (in auto ref KeyEvent evt) {
1356   if (!atomicLoad(renderThreadStarted)) return;
1357   TMsgKeyEvent msg;
1358   msg.key = evt.key;
1359   msg.pressed = evt.pressed;
1360   msg.character = evt.character;
1361   msg.modifierState = evt.modifierState;
1362   send(renderTid, msg);
1363 }
1364
1365
1366 // ////////////////////////////////////////////////////////////////////////// //
1367 struct TMsgTestLightMove {
1368   int x, y;
1369 }
1370
1371 public void postTestLightMove (int x, int y) {
1372   if (!atomicLoad(renderThreadStarted)) return;
1373   auto msg = TMsgTestLightMove(x, y);
1374   send(renderTid, msg);
1375 }
1376
1377
1378 // ////////////////////////////////////////////////////////////////////////// //
1379 struct TMsgMessage {
1380   char[256] text;
1381   uint textlen;
1382   int pauseMsecs;
1383   bool noreplace;
1384 }
1385
1386 public void postAddMessage (const(char)[] msgtext, int pauseMsecs=3000, bool noreplace=false) {
1387   if (!atomicLoad(renderThreadStarted)) return;
1388   if (msgtext.length > TMsgMessage.text.length) msgtext = msgtext[0..TMsgMessage.text.length];
1389   TMsgMessage msg;
1390   msg.textlen = cast(uint)msgtext.length;
1391   if (msg.textlen) msg.text[0..msg.textlen] = msgtext[0..msg.textlen];
1392   msg.pauseMsecs = pauseMsecs;
1393   msg.noreplace = noreplace;
1394   send(renderTid, msg);
1395 }
1396
1397
1398 // ////////////////////////////////////////////////////////////////////////// //
1399 struct TMsgLoadLevel {
1400   char[1024] mapfile;
1401   uint textlen;
1402 }
1403
1404 public void postLoadLevel (const(char)[] mapfile) {
1405   if (!atomicLoad(renderThreadStarted)) return;
1406   if (mapfile.length > TMsgLoadLevel.mapfile.length) mapfile = mapfile[0..TMsgLoadLevel.mapfile.length];
1407   TMsgLoadLevel msg;
1408   msg.textlen = cast(uint)mapfile.length;
1409   if (msg.textlen) msg.mapfile[0..msg.textlen] = mapfile[0..msg.textlen];
1410   send(renderTid, msg);
1411 }
1412
1413
1414 // ////////////////////////////////////////////////////////////////////////// //
1415 struct TMsgSkipLevel {
1416 }
1417
1418 public void postSkipLevel () {
1419   if (!atomicLoad(renderThreadStarted)) return;
1420   TMsgSkipLevel msg;
1421   send(renderTid, msg);
1422 }
1423
1424
1425 // ////////////////////////////////////////////////////////////////////////// //
1426 struct TMsgIntOption {
1427   enum Type {
1428     Scale,
1429   }
1430   Type type;
1431   int value;
1432   bool showMessage;
1433 }
1434
1435
1436 struct TMsgBoolOption {
1437   enum Type {
1438     Interpolation,
1439     Lighting,
1440     Pause,
1441     EditMode,
1442     CheatNoDoors,
1443     CheatNoWallClip,
1444   }
1445   Type type;
1446   bool value;
1447   bool toggle;
1448   bool showMessage;
1449 }
1450
1451
1452 bool strCaseEqu (const(char)[] s0, const(char)[] s1) {
1453   if (s0.length != s1.length) return false;
1454   foreach (immutable idx, char ch; s0) {
1455     if (ch >= 'A' && ch <= 'Z') ch += 32;
1456     char c1 = s1.ptr[idx];
1457     if (c1 >= 'A' && c1 <= 'Z') c1 += 32;
1458     if (ch != c1) return false;
1459   }
1460   return true;
1461 }
1462
1463
1464 public bool postToggleOption (const(char)[] name, bool showMessage=false) { /*pragma(inline, true);*/ return postSetOption(name, true, showMessage:showMessage, toggle:true); }
1465
1466 public bool postSetOption(T) (const(char)[] name, T value, bool showMessage=false, bool toggle=false) if ((is(T == int) || is(T == bool))) {
1467   if (!atomicLoad(renderThreadStarted)) return false;
1468   if (name.length == 0 || name.length > 127) return false;
1469   static if (is(T == int)) {
1470     TMsgIntOption msg;
1471     foreach (string oname; __traits(allMembers, TMsgIntOption.Type)) {
1472       if (strCaseEqu(oname, name)) {
1473         msg.type = __traits(getMember, TMsgIntOption.Type, oname);
1474         msg.value = value;
1475         msg.showMessage = showMessage;
1476         send(renderTid, msg);
1477         return true;
1478       }
1479     }
1480   } else static if (is(T == bool)) {
1481     TMsgBoolOption msg;
1482     foreach (string oname; __traits(allMembers, TMsgBoolOption.Type)) {
1483       if (strCaseEqu(oname, name)) {
1484         msg.type = __traits(getMember, TMsgBoolOption.Type, oname);
1485         msg.value = value;
1486         msg.toggle = toggle;
1487         msg.showMessage = showMessage;
1488         send(renderTid, msg);
1489         return true;
1490       }
1491     }
1492   } else {
1493     static assert(0, "invalid option type '"~T.stringof~"'");
1494   }
1495   return false;
1496 }