LOL: some more work on the floppy version (drawing code is still broken)

svn-id: r43923

5 files changed, 67 insertions, 6 deletions

diff --git a/engines/kyra/lol.cpp b/engines/kyra/lol.cpp
index 6ce05b1e3d..cf42d0b2d8 100644
--- a/engines/kyra/lol.cpp
+++ b/engines/kyra/lol.cpp
@@ -2676,6 +2676,8 @@ int LoLEngine::processMagicFog() {
 }
 
 int LoLEngine::processMagicSwarm(int charNum, int damage) {
+	loadFxTables();
+
 	int cp = _screen->setCurPage(2);
 	_screen->copyPage(0, 12);
 	snd_playSoundEffect(74, -1);
@@ -2876,6 +2878,8 @@ void LoLEngine::callbackProcessMagicLightning(WSAMovie_v2 *mov, int x, int y) {
 }
 
 void LoLEngine::drinkBezelCup(int numUses, int charNum) {
+	loadFxTables();
+
 	int cp = _screen->setCurPage(2);
 	snd_playSoundEffect(73, -1);
 
diff --git a/engines/kyra/lol.h b/engines/kyra/lol.h
index 40dec5f712..775369b54c 100644
--- a/engines/kyra/lol.h
+++ b/engines/kyra/lol.h
@@ -982,6 +982,7 @@ private:
 	void loadCmzFile(const char *file);
 	void loadLevelShpDat(const char *shpFile, const char *datFile, bool flag);
 	void loadLevelGraphics(const char *file, int specialColor, int weight, int vcnLen, int vmpLen, const char *palFile);
+	void loadFxTables();
 
 	void resetItems(int flag);
 	void disableMonsters();
diff --git a/engines/kyra/scene_lol.cpp b/engines/kyra/scene_lol.cpp
index 3dadeb91c8..bc1f11a492 100644
--- a/engines/kyra/scene_lol.cpp
+++ b/engines/kyra/scene_lol.cpp
@@ -440,21 +440,34 @@ void LoLEngine::loadLevelGraphics(const char *file, int specialColor, int weight
 	_loadSuppFilesFlag = 0;
 	generateBrightnessPalette(_screen->getPalette(0), _screen->getPalette(1), _brightness, _lampEffect);
 
-	char tname[13];
-	snprintf(tname, sizeof(tname), "LEVEL%.02d.TLC", _currentLevel);
-	Common::SeekableReadStream *s = _res->createReadStream(tname);
-	if (s) {
+	if (_flags.isTalkie) {
+		char tname[13];
+		snprintf(tname, sizeof(tname), "LEVEL%.02d.TLC", _currentLevel);
+		Common::SeekableReadStream *s = _res->createReadStream(tname);
 		s->read(_trueLightTable1, 256);
 		s->read(_trueLightTable2, 5120);
 		delete s;
 	} else {
-		memset(_trueLightTable1, 0, 256);
-		memset(_trueLightTable2, 0, 5120);
+		loadFxTables();
 	}
 
 	_loadSuppFilesFlag = 1;
 }
 
+void LoLEngine::loadFxTables() {
+	if (_flags.isTalkie || _loadSuppFilesFlag)
+		return;
+
+	Palette tpal(768);
+	_screen->loadPalette("fxpal.col", tpal);
+	_screen->loadBitmap("fxpal.shp", 3, 3, 0);
+	const uint8 *v = _screen->getCPagePtr(2) + 11;
+
+	_screen->generateTruelightTables(v, 20, tpal, _screen->getPalette(1), _trueLightTable1, _trueLightTable2, 70);
+
+	_loadSuppFilesFlag = 1;
+}
+
 void LoLEngine::resetItems(int flag) {
 	for (int i = 0; i < 1024; i++) {
 		_levelBlockProperties[i].direction = 5;
diff --git a/engines/kyra/screen_lol.cpp b/engines/kyra/screen_lol.cpp
index ce8a1bdaa4..6e855f7a7f 100644
--- a/engines/kyra/screen_lol.cpp
+++ b/engines/kyra/screen_lol.cpp
@@ -216,6 +216,47 @@ uint8 *Screen_LoL::generateLevelOverlay(const Palette &srcPal, uint8 *ovl, int o
 	return ovl;
 }
 
+void Screen_LoL::generateTruelightTables(const uint8 *shp, int a, const Palette &fxPal, const Palette &screenPal, uint8 *outTable1, uint8 *outTable2, int b) {
+	memset(outTable1, 0xff, 256);
+
+	for (int i = 0; i < a; i++)
+		outTable1[shp[i]] = i;
+
+	for (int i = 0; i < a; i++) {
+		if (shp[i]) {
+			uint8 tcol[3];
+			uint16 fcol[3];
+			uint16 scol[3];
+
+			int t1 = (b << 6) / 100;
+			int t2 = 64 - t1;
+
+			uint8 c = shp[i];
+			fcol[0] = fxPal[3 * c];
+			fcol[1] = fxPal[3 * c + 1];
+			fcol[2] = fxPal[3 * c + 2];
+
+			uint8 *o = &outTable2[i << 8];
+
+			for (int ii = 0; ii < 256; ii++) {
+				scol[0] = screenPal[3 * ii];
+				scol[1] = screenPal[3 * ii + 1];
+				scol[2] = screenPal[3 * ii + 2];
+
+				tcol[0] = CLIP(((fcol[0] * t2) >> 6) + ((scol[0] * t1) >> 6), 0, 63);
+				tcol[1] = CLIP(((fcol[1] * t2) >> 6) + ((scol[1] * t1) >> 6), 0, 63);
+				tcol[2] = CLIP(((fcol[2] * t2) >> 6) + ((scol[2] * t1) >> 6), 0, 63);
+
+				o[ii] = findLeastDifferentColor(tcol, screenPal, 0, 255);
+			}			
+
+		} else {
+			for (int ii = 0; ii < 256; ii++)
+				outTable2[(i << 8) + ii] = 0;
+		}
+	}
+}
+
 void Screen_LoL::drawGridBox(int x, int y, int w, int h, int col) {
 	if (w <= 0 || x >= 320 || h <= 0 || y >= 200)
 		return;
diff --git a/engines/kyra/screen_lol.h b/engines/kyra/screen_lol.h
index 4980a89694..2c52213b29 100644
--- a/engines/kyra/screen_lol.h
+++ b/engines/kyra/screen_lol.h
@@ -80,6 +80,8 @@ public:
 	uint8 *generateLevelOverlay(const Palette &Pal, uint8 *ovl, int opColor, int weight);
 	uint8 *getLevelOverlay(int index) { return _levelOverlays[index]; }
 
+	void generateTruelightTables(const uint8 *shp, int a, const Palette &fxPal, const Palette &screenPal, uint8 *outTable1, uint8 *outTable2, int b);
+
 	void copyBlockAndApplyOverlay(int page1, int x1, int y1, int page2, int x2, int y2, int w, int h, int dim, uint8 *ovl);
 	void applyOverlaySpecial(int page1, int x1, int y1, int page2, int x2, int y2, int w, int h, int dim, int flag, uint8 *ovl);