Fix bugs #941074 and #828860, by switching to graphics renderer code used by earlier (non-Windows) versions of Simon the Sorcerer 1/2.

svn-id: r26825

14 files changed, 298 insertions, 363 deletions

diff --git a/engines/agos/agos.cpp b/engines/agos/agos.cpp
index b3e615bfec..68d8f08c51 100644
--- a/engines/agos/agos.cpp
+++ b/engines/agos/agos.cpp
@@ -192,6 +192,7 @@ AGOSEngine::AGOSEngine(OSystem *syst)
 	_beardLoaded = 0;
 	_litBoxFlag = 0;
 	_mortalFlag = 0;
+	_displayScreen = false;
 	_updateScreen = false;
 	_syncFlag2 = 0;
 	_inCallBack = 0;
@@ -200,7 +201,6 @@ AGOSEngine::AGOSEngine(OSystem *syst)
 	_fastMode = 0;
 	_useBackGround = 0;
 	
-	_oldDrawMethod = 0;
 	_backFlag = 0;
 
 	_debugMode = 0;
@@ -208,7 +208,6 @@ AGOSEngine::AGOSEngine(OSystem *syst)
 	_continousMainScript = false;
 	_startVgaScript = false;
 	_continousVgaScript = false;
-	_drawImagesDebug = false;
 	_dumpImages = false;
 
 	_copyProtection = false;
@@ -330,6 +329,7 @@ AGOSEngine::AGOSEngine(OSystem *syst)
 	_showPreposition = 0;
 	_showMessageFlag = 0;
 
+	_copyScnFlag = 0;
 	_vgaSpriteChanged = 0;
 
 	_block = 0;
@@ -526,12 +526,6 @@ int AGOSEngine::init() {
 		return -1;
 	}
 
-	// TODO: Enable for Simon the Sorcerer 1/2 when complete
-	if (getGameType() == GType_WW || getGameType() == GType_ELVIRA2 ||
-		getGameType() == GType_ELVIRA1) {
-		_oldDrawMethod = true;
-	}
-
 	if (getGameId() == GID_DIMP) {
 		_screenWidth = 496;
 		_screenHeight = 400;
@@ -585,22 +579,19 @@ int AGOSEngine::init() {
 	_frontBuf = (byte *)calloc(_screenWidth * _screenHeight, 1);
 
 	if (getGameType() == GType_FF || getGameType() == GType_PP) {
+		_backBuf = (byte *)calloc(_screenWidth * _screenHeight, 1);
 		_scaleBuf = (byte *)calloc(_screenWidth * _screenHeight, 1);
 	}
 
-	if (!_oldDrawMethod) {
-		_backBuf = (byte *)calloc(_screenWidth * _screenHeight, 1);
-	} else {
-		if (getGameType() == GType_SIMON2) {
-			_window4BackScn = (byte *)calloc(_screenWidth * _screenHeight, 1);
-		} else if (getGameType() == GType_SIMON1) {
-			_window4BackScn = (byte *)calloc(_screenWidth * 134, 1);
-		} else if (getGameType() == GType_WW || getGameType() == GType_ELVIRA2) {
-			_window4BackScn = (byte *)calloc(224 * 127, 1);
-		} else if (getGameType() == GType_ELVIRA1) {
-			_window4BackScn = (byte *)calloc(224 * 127, 1);
-			_window6BackScn = (byte *)calloc(48 * 80, 1);
-		}
+	if (getGameType() == GType_SIMON2) {
+		_window4BackScn = (byte *)calloc(_screenWidth * _screenHeight, 1);
+	} else if (getGameType() == GType_SIMON1) {
+		_window4BackScn = (byte *)calloc(_screenWidth * 134, 1);
+	} else if (getGameType() == GType_WW || getGameType() == GType_ELVIRA2) {
+		_window4BackScn = (byte *)calloc(224 * 127, 1);
+	} else if (getGameType() == GType_ELVIRA1) {
+		_window4BackScn = (byte *)calloc(224 * 127, 1);
+		_window6BackScn = (byte *)calloc(48 * 80, 1);
 	}
 
 	setupGame();
@@ -948,6 +939,10 @@ int AGOSEngine::go() {
 
 	vc34_setMouseOff();
 
+	if (getGameType() != GType_PP && getGameType() != GType_FF) {
+		addVgaEvent(_frameRate, NULL, 0, 0, 2);
+	}
+
 	if (getGameType() == GType_ELVIRA1 && getPlatform() == Common::kPlatformAtariST &&
 		(getFeatures() & GF_DEMO)) {
 		int i;
diff --git a/engines/agos/agos.h b/engines/agos/agos.h
index af28cd2729..964c8c758b 100644
--- a/engines/agos/agos.h
+++ b/engines/agos/agos.h
@@ -105,6 +105,7 @@ struct VgaTimerEntry {
 	const byte *script_pointer;
 	uint16 sprite_id;
 	uint16 cur_vga_file;
+	uint8 type;
 	VgaTimerEntry() { memset(this, 0, sizeof(*this)); }
 };
 
@@ -265,6 +266,7 @@ protected:
 	bool _beardLoaded;
 	bool _litBoxFlag;
 	bool _mortalFlag;
+	bool _displayScreen;
 	bool _updateScreen;
 	bool _syncFlag2;
 	bool _inCallBack;
@@ -273,7 +275,6 @@ protected:
 	bool _fastMode;
 	bool _useBackGround;
 
-	bool _oldDrawMethod;
 	bool _backFlag;
 
 	uint16 _debugMode;
@@ -284,7 +285,6 @@ protected:
 	bool _continousMainScript;
 	bool _startVgaScript;
 	bool _continousVgaScript;
-	bool _drawImagesDebug;
 	bool _dumpImages;
 	bool _speech;
 	bool _subtitles;
@@ -408,7 +408,7 @@ protected:
 	bool _showPreposition;
 	bool _showMessageFlag;
 
-	uint _vgaSpriteChanged;
+	uint _copyScnFlag, _vgaSpriteChanged;
 
 	byte *_block, *_blockEnd;
 	byte *_vgaMemPtr, *_vgaMemEnd, *_vgaMemBase;
@@ -1086,7 +1086,7 @@ protected:
 	bool isVgaQueueEmpty();
 	void haltAnimation();
 	void restartAnimation();
-	void addVgaEvent(uint16 num, const byte *code_ptr, uint16 cur_sprite, uint16 curZoneNum);
+	void addVgaEvent(uint16 num, const byte *code_ptr, uint16 cur_sprite, uint16 curZoneNum, uint8 type = 0);
 	void deleteVgaEvent(VgaTimerEntry * vte);
 	void processVgaEvents();
 	void animateEvent(const byte *code_ptr, uint16 curZoneNum, uint16 cur_sprite);
@@ -1127,9 +1127,7 @@ protected:
 	void timer_callback();
 	void timer_proc1();
 
-	void animateSprites();
-	void animateSpritesDebug();
-	void animateSpritesByY();
+	virtual void animateSprites();
 
 	void dirtyClips();
 	void dirtyBackGround();
@@ -1137,7 +1135,7 @@ protected:
 	void saveBackGround(VgaSprite *vsp);
 
 	void clearSurfaces(uint num_lines);
-	void updateScreen();
+	void displayScreen();
 
 	void dumpVideoScript(const byte *src, bool one_opcode_only);
 	void dumpVgaFile(const byte *vga);
@@ -1559,6 +1557,9 @@ protected:
 	void drawMousePart(int image, byte x, byte y);
 	virtual void drawMousePointer();
 
+	virtual void animateSprites();
+	void animateSpritesByY();
+
 	virtual void addArrows(WindowBlock *window);
 	virtual uint setupIconHitArea(WindowBlock *window, uint num, uint x, uint y, Item *item_ptr);
 
diff --git a/engines/agos/charset.cpp b/engines/agos/charset.cpp
index 2dbf8277af..2d37d33aa5 100644
--- a/engines/agos/charset.cpp
+++ b/engines/agos/charset.cpp
@@ -602,6 +602,12 @@ void AGOSEngine::openTextWindow() {
 void AGOSEngine::windowPutChar(WindowBlock *window, byte c, byte b) {
 	byte width = 6;
 
+	if (getGameType() == GType_ELVIRA1 || getGameType() == GType_ELVIRA2 || getGameType() == GType_WW) {
+		if (!(window->flags & 1)) {
+			haltAnimation();
+		}
+	}
+
 	if (c == 12) {
 		clearWindow(window);
 	} else if (c == 13 || c == 10) {
diff --git a/engines/agos/draw.cpp b/engines/agos/draw.cpp
index c2183bffc2..afc879a839 100644
--- a/engines/agos/draw.cpp
+++ b/engines/agos/draw.cpp
@@ -31,6 +31,9 @@
 namespace AGOS {
 
 byte *AGOSEngine::getFrontBuf() {
+	if (getGameType() != GType_PP && getGameType() != GType_FF)
+		_updateScreen = true;
+
 	_dxSurfacePitch = _screenWidth;
 	return _frontBuf;
 }
@@ -50,35 +53,138 @@ byte *AGOSEngine::getScaleBuf() {
 	return _scaleBuf;
 }
 
-void AGOSEngine::animateSprites() {
+void AGOSEngine_Feeble::animateSpritesByY() {
+	VgaSprite *vsp;
+	VgaPointersEntry *vpe;
+	int16 spriteTable[180][2];
+	
+	byte *src;
+	int height, slot, y;
+	uint i, numSprites = 0;
+
+	vsp = _vgaSprites;
+	while (vsp->id) {
+		if (vsp->flags & kDFScaled) {
+			y = vsp->y;
+		} else if (vsp->flags & kDFMasked) {
+			vpe = &_vgaBufferPointers[vsp->zoneNum];
+			src = vpe->vgaFile2 + vsp->image * 8;
+			height = READ_LE_UINT16(src + 4) & 0x7FFF;
+			y = vsp->y + height;
+		} else {
+			y = vsp->priority;
+		}
+
+		spriteTable[numSprites][0] = y;
+		spriteTable[numSprites][1] = numSprites;
+		numSprites++;
+		vsp++;
+	}
+
+	while (1) {
+		y = spriteTable[0][0];
+		slot = spriteTable[0][1];
+
+		for (i = 0; i < numSprites; i++) {
+			if (y >= spriteTable[i][0]) {
+				y = spriteTable[i][0];
+				slot = spriteTable[i][1];
+			}
+		}
+
+		if (y == 9999)
+			break;
+
+		for (i = 0; i < numSprites; i++) {
+			if (slot == spriteTable[i][1]) {
+				spriteTable[i][0] = 9999;
+				break;
+			}
+		}
+
+		vsp = &_vgaSprites[slot];
+
+		vsp->windowNum &= 0x7FFF;
+
+		vpe = &_vgaBufferPointers[vsp->zoneNum];
+		_curVgaFile1 = vpe->vgaFile1;
+		_curVgaFile2 = vpe->vgaFile2;
+		_curSfxFile = vpe->sfxFile;
+		_windowNum = vsp->windowNum;
+		_vgaCurSpriteId = vsp->id;
+		_vgaCurSpritePriority = vsp->priority;
+
+		drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
+	}
+
+	_displayScreen = true;
+}
+
+void AGOSEngine_Feeble::animateSprites() {
 	VgaSprite *vsp;
 	VgaPointersEntry *vpe;
 
 	if (_paletteFlag == 2)
 		_paletteFlag = 1;
 
-	if (getGameType() == GType_FF && _scrollCount) {
+	if (_scrollCount) {
 		scrollEvent();
 	}
-	if (getGameType() == GType_SIMON2 && _scrollFlag) {
-		scrollScreen();
-	}
 
-	if (getGameType() == GType_FF && getBitFlag(84)) {
+	if (getBitFlag(84)) {
 		animateSpritesByY();
 		return;
 	}
 
-	if (_oldDrawMethod) {
-		if (getGameType() == GType_SIMON1 || getGameType() == GType_SIMON2) {
-			dirtyClips();
-		}
+	vsp = _vgaSprites;
+	while (vsp->id) {
+		vsp->windowNum &= 0x7FFF;
+
+		vpe = &_vgaBufferPointers[vsp->zoneNum];
+		_curVgaFile1 = vpe->vgaFile1;
+		_curVgaFile2 = vpe->vgaFile2;
+		_curSfxFile = vpe->sfxFile;
+		_windowNum = vsp->windowNum;
+		_vgaCurSpriteId = vsp->id;
+		_vgaCurSpritePriority = vsp->priority;
+
+		drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
+		vsp++;
+	}
 
-		restoreBackGround();
+	_displayScreen = true;
+}
+
+void AGOSEngine::animateSprites() {
+	VgaSprite *vsp;
+	VgaPointersEntry *vpe;
+
+	if (_copyScnFlag) {
+		_copyScnFlag--;
+		_vgaSpriteChanged++;
+	}
+
+	if (!_scrollFlag && !_vgaSpriteChanged) {
+		return;
+	}
+
+	_vgaSpriteChanged = 0;
+
+	if (_paletteFlag == 2)
+		_paletteFlag = 1;
+
+	if (getGameType() == GType_SIMON2 && _scrollFlag) {
+		scrollScreen();
 	}
 
+	if (getGameType() == GType_SIMON1 || getGameType() == GType_SIMON2) {
+		dirtyClips();
+	}
+
+	restoreBackGround();
+
 	vsp = _vgaSprites;
-	while (vsp->id != 0) {
+	while (vsp->id) {
 		vsp->windowNum &= 0x7FFF;
 
 		vpe = &_vgaBufferPointers[vsp->zoneNum];
@@ -89,24 +195,19 @@ void AGOSEngine::animateSprites() {
 		_vgaCurSpriteId = vsp->id;
 		_vgaCurSpritePriority = vsp->priority;
 
-		if (_oldDrawMethod) {
-			saveBackGround(vsp);
-		}
+		saveBackGround(vsp);
 
 		drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
 		vsp++;
 	}
 
-	if (_drawImagesDebug)
-		memset(_backBuf, 0, _screenWidth * _screenHeight);
-
 	if (_window6Flag == 1)
 		_window6Flag++;
 
 	if (_window4Flag == 1)
 		_window4Flag++;
 
-	_updateScreen = true;
+	_displayScreen = true;
 }
 
 void AGOSEngine::dirtyClips() {
@@ -202,103 +303,6 @@ void AGOSEngine::saveBackGround(VgaSprite *vsp) {
 	animTable->id = vsp->id;
 }
 
-void AGOSEngine::animateSpritesDebug() {
-	VgaSprite *vsp;
-	VgaPointersEntry *vpe;
-
-	if (_paletteFlag == 2)
-		_paletteFlag = 1;
-
-	vsp = _vgaSprites;
-	while (vsp->id != 0) {
-		vsp->windowNum &= 0x7FFF;
-
-		vpe = &_vgaBufferPointers[vsp->zoneNum];
-		_curVgaFile1 = vpe->vgaFile1;
-		_curVgaFile2 = vpe->vgaFile2;
-		_curSfxFile = vpe->sfxFile;
-		_windowNum = vsp->windowNum;
-		_vgaCurSpriteId = vsp->id;
-
-		if (vsp->image)
-			printf("id:%5d image:%3d base-color:%3d x:%3d y:%3d flags:%x\n",
-							vsp->id, vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
-
-		drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
-
-		vsp++;
-	}
-
-	_updateScreen = true;
-}
-
-void AGOSEngine::animateSpritesByY() {
-	VgaSprite *vsp;
-	VgaPointersEntry *vpe;
-	int16 spriteTable[180][2];
-	
-	byte *src;
-	int height, slot, y;
-	uint i, numSprites = 0;
-
-	vsp = _vgaSprites;
-	while (vsp->id != 0) {
-		if (vsp->flags & kDFScaled) {
-			y = vsp->y;
-		} else if (vsp->flags & kDFMasked) {
-			vpe = &_vgaBufferPointers[vsp->zoneNum];
-			src = vpe->vgaFile2 + vsp->image * 8;
-			height = READ_LE_UINT16(src + 4) & 0x7FFF;
-			y = vsp->y + height;
-		} else {
-			y = vsp->priority;
-		}
-
-		spriteTable[numSprites][0] = y;
-		spriteTable[numSprites][1] = numSprites;
-		numSprites++;
-		vsp++;
-	}
-
-	while (1) {
-		y = spriteTable[0][0];
-		slot = spriteTable[0][1];
-
-		for (i = 0; i < numSprites; i++) {
-			if (y >= spriteTable[i][0]) {
-				y = spriteTable[i][0];
-				slot = spriteTable[i][1];
-			}
-		}
-
-		if (y == 9999)
-			break;
-
-		for (i = 0; i < numSprites; i++) {
-			if (slot == spriteTable[i][1]) {
-				spriteTable[i][0] = 9999;
-				break;
-			}
-		}
-
-		vsp = &_vgaSprites[slot];
-
-		vsp->windowNum &= 0x7FFF;
-
-		vpe = &_vgaBufferPointers[vsp->zoneNum];
-		_curVgaFile1 = vpe->vgaFile1;
-		_curVgaFile2 = vpe->vgaFile2;
-		_curSfxFile = vpe->sfxFile;
-		_windowNum = vsp->windowNum;
-		_vgaCurSpriteId = vsp->id;
-		_vgaCurSpritePriority = vsp->priority;
-
-		drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
-	}
-
-	_updateScreen = true;
-}
-
 void AGOSEngine::displayBoxStars() {
 	HitArea *ha, *dha;
 	uint count;
@@ -306,21 +310,19 @@ void AGOSEngine::displayBoxStars() {
 	byte *dst;
 	uint b, color;
 
-	_lockWord |= 0x8000;
+	o_haltAnimation();
 
 	if (getGameType() == GType_SIMON2)
 		color = 236;
 	else
 		color = 225;
 
-	uint limit = (getGameType() == GType_SIMON2) ? 200 : 134;
+	uint curHeight = (getGameType() == GType_SIMON2) ? _boxStarHeight : 134;
 
 	for (int i = 0; i < 5; i++) {
 		ha = _hitAreas;
 		count = ARRAYSIZE(_hitAreas);
 
-		animateSprites();
-
 		do {
 			if (ha->id != 0 && ha->flags & kBFBoxInUse && !(ha->flags & kBFBoxDead)) {
 
@@ -338,7 +340,7 @@ void AGOSEngine::displayBoxStars() {
 						continue;
 				}
 
-				if (ha->y >= limit || ((getGameType() == GType_SIMON2) && ha->y >= _boxStarHeight))
+				if (ha->y >= curHeight)
 					continue;
 
 				y_ = (ha->height / 2) - 4 + ha->y;
@@ -348,7 +350,7 @@ void AGOSEngine::displayBoxStars() {
 				if (x_ >= 311)
 					continue;
 
-				dst = getBackBuf();
+				dst = getFrontBuf();
 
 				dst += (((_dxSurfacePitch / 4) * y_) * 4) + x_;
 
@@ -387,14 +389,16 @@ void AGOSEngine::displayBoxStars() {
 			}
 		} while (ha++, --count);
 
-		updateScreen();
 		delay(100);
-		animateSprites();
-		updateScreen();
+
+		setMoveRect(0, 0, 320, curHeight);
+		_window4Flag = 2;
+
+		displayScreen();
 		delay(100);
 	}
 
-	_lockWord &= ~0x8000;
+	o_restartAnimation();
 }
 
 void AGOSEngine::scrollScreen() {
@@ -402,10 +406,10 @@ void AGOSEngine::scrollScreen() {
 	const byte *src;
 	uint x, y;
 
-	if (!_oldDrawMethod) {
-		dst = getFrontBuf();
-	} else {
+	if (getGameType() == GType_SIMON2) {
 		dst = getBackGround();
+	} else {
+		dst = getFrontBuf();
 	}
 
 	if (_scrollXMax == 0) {
@@ -455,11 +459,11 @@ void AGOSEngine::scrollScreen() {
 		_scrollX += _scrollFlag;
 		vcWriteVar(251, _scrollX);
 
-		if (!_oldDrawMethod) {
+		if (getGameType() == GType_SIMON2) {
+			memcpy(_window4BackScn, _backGroundBuf, _scrollHeight * _screenWidth);
+		} else {
 			memcpy(_backBuf, _frontBuf, _screenWidth * _screenHeight);
 			memcpy(_backGroundBuf, _backBuf, _scrollHeight * _screenWidth);
-		} else {
-			memcpy(_window4BackScn, _backGroundBuf, _scrollHeight * _screenWidth);
 		}
 
 		setMoveRect(0, 0, 320, _scrollHeight);
@@ -527,7 +531,7 @@ void AGOSEngine::setMoveRect(uint16 x, uint16 y, uint16 width, uint16 height) {
 		_moveYMax = height;
 }
 
-void AGOSEngine::updateScreen() {
+void AGOSEngine::displayScreen() {
 	if (_fastFadeInFlag == 0 && _paletteFlag == 1) {
 		_paletteFlag = 0;
 		if (memcmp(_displayPalette, _currentPalette, 1024)) {
@@ -536,7 +540,13 @@ void AGOSEngine::updateScreen() {
 		}
 	}
 
-	if (_oldDrawMethod) {
+	if (getGameType() == GType_PP || getGameType() == GType_FF) {
+		_system->copyRectToScreen(getBackBuf(), _screenWidth, 0, 0, _screenWidth, _screenHeight);
+		_system->updateScreen();
+
+		if (getGameId() != GID_DIMP)
+			memcpy(getBackBuf(), getFrontBuf(), _screenWidth * _screenHeight);
+	} else {
 		if (_window4Flag == 2) {
 			_window4Flag = 0;
 
@@ -571,7 +581,7 @@ void AGOSEngine::updateScreen() {
 			_moveYMax = 0;
 		}
 		
-		 if (_window6Flag == 2) {
+		if (_window6Flag == 2) {
 			_window6Flag = 0;
 
 			byte *src = _window6BackScn;
@@ -581,17 +591,10 @@ void AGOSEngine::updateScreen() {
 				dst += _screenWidth;
 				src += 48;
 			}
-		} 
-	
+		}
+
 		_system->copyRectToScreen(getFrontBuf(), _screenWidth, 0, 0, _screenWidth, _screenHeight);
 		_system->updateScreen();
-	} else {
-		_system->copyRectToScreen(getBackBuf(), _screenWidth, 0, 0, _screenWidth, _screenHeight);
-		_system->updateScreen();
-
-		if (getGameId() != GID_DIMP)
-			memcpy(getBackBuf(), getFrontBuf(), _screenWidth * _screenHeight);
-
 	}
 
 	if (getGameType() == GType_FF && _scrollFlag) {
@@ -599,10 +602,6 @@ void AGOSEngine::updateScreen() {
 	}
 
 	if (_fastFadeInFlag) {
-		if (getGameType() == GType_SIMON1 && _usePaletteDelay) {
-			delay(100);
-			_usePaletteDelay = false;
-		}
 		fastFadeIn();
 	}
 }
diff --git a/engines/agos/event.cpp b/engines/agos/event.cpp
index 43468d35f8..457e07ce35 100644
--- a/engines/agos/event.cpp
+++ b/engines/agos/event.cpp
@@ -170,9 +170,9 @@ void AGOSEngine::haltAnimation() {
 
 	_lockWord |= 0x10;
 
-	if (_updateScreen != false) {
-		updateScreen();
-		_updateScreen = false;
+	if (_displayScreen) {
+		displayScreen();
+		_displayScreen = false;
 	}
 }
 
@@ -181,16 +181,16 @@ void AGOSEngine::restartAnimation() {
 		return;
 
 	_window4Flag = 2;
-	
+
 	setMoveRect(0, 0, 224, 127);
-	updateScreen();
+	displayScreen();
 
 	_lockWord &= ~0x10;
 
 	// Check picture queue
 }
 
-void AGOSEngine::addVgaEvent(uint16 num, const byte *code_ptr, uint16 cur_sprite, uint16 curZoneNum) {
+void AGOSEngine::addVgaEvent(uint16 num, const byte *code_ptr, uint16 cur_sprite, uint16 curZoneNum, uint8 type) {
 	VgaTimerEntry *vte;
 
 	_lockWord |= 1;
@@ -202,6 +202,7 @@ void AGOSEngine::addVgaEvent(uint16 num, const byte *code_ptr, uint16 cur_sprite
 	vte->script_pointer = code_ptr;
 	vte->sprite_id = cur_sprite;
 	vte->cur_vga_file = curZoneNum;
+	vte->type = type;
 
 	_lockWord &= ~1;
 }
@@ -232,16 +233,29 @@ void AGOSEngine::processVgaEvents() {
 			uint16 curZoneNum = vte->cur_vga_file;
 			uint16 cur_sprite = vte->sprite_id;
 			const byte *script_ptr = vte->script_pointer;
+			uint8 type = vte->type;
+
+			if (type == 2) {
+				vte->delay = (getGameType() == GType_SIMON2) ? 5 : _frameRate;
 
-			_nextVgaTimerToProcess = vte + 1;
-			deleteVgaEvent(vte);
+				animateSprites();
+
+				vte++;
+			} else if (type == 1) {
+				_nextVgaTimerToProcess = vte + 1;
+				deleteVgaEvent(vte);
 
-			if (getGameType() == GType_SIMON2 && script_ptr == NULL) {
 				scrollEvent();
-			} else {
+
+				vte = _nextVgaTimerToProcess;
+			} else if (type == 0) {
+				_nextVgaTimerToProcess = vte + 1;
+				deleteVgaEvent(vte);
+
 				animateEvent(script_ptr, curZoneNum, cur_sprite);
+
+				vte = _nextVgaTimerToProcess;
 			}
-			vte = _nextVgaTimerToProcess;
 		} else {
 			vte++;
 		}
@@ -297,7 +311,7 @@ void AGOSEngine::scrollEvent() {
 			}
 		}
 
-		addVgaEvent(6, NULL, 0, 0); /* scroll event */
+		addVgaEvent(6, NULL, 0, 0, 1); /* scroll event */
 	}
 }
 
@@ -444,6 +458,8 @@ void AGOSEngine::timer_proc1() {
 
 	_lockWord |= 2;
 
+	handleMouseMoved();
+
 	if (!(_lockWord & 0x10)) {
 		if (getGameType() == GType_PP) {
 			_syncFlag2 ^= 1;
@@ -481,29 +497,26 @@ void AGOSEngine::timer_proc1() {
 				return;
 			}
 		}
-	}
+	} 
 
-	if (getGameType() == GType_FF)
+	if (getGameType() == GType_FF) {
 		_moviePlay->nextFrame();
-
-	animateSprites();
-	if (_drawImagesDebug)
-		animateSpritesDebug();
-
-	if (_copyPartialMode == 1) {
-		fillBackFromFront(80, 46, 208 - 80, 94 - 46);
+		animateSprites();
 	}
 
 	if (_copyPartialMode == 2) {
-		if (getGameType() == GType_FF || getGameType() == GType_PP) {
-			fillFrontFromBack(0, 0, _screenWidth, _screenHeight);
-		} else {
-			fillFrontFromBack(176, 61, _screenWidth - 176, 134 - 61);
-		}
+		fillFrontFromBack(0, 0, _screenWidth, _screenHeight);
 		_copyPartialMode = 0;
 	}
 
 	if (_updateScreen) {
+		_system->copyRectToScreen(getFrontBuf(), _screenWidth, 0, 0, _screenWidth, _screenHeight);
+		_system->updateScreen();
+
+		_updateScreen = false;
+	}
+
+	if (_displayScreen) {
 		if (getGameType() == GType_FF) {
 			if (!getBitFlag(78)) {
 				oracleLogo();
@@ -512,9 +525,8 @@ void AGOSEngine::timer_proc1() {
 				swapCharacterLogo();
 			}
 		}
-		handleMouseMoved();
-		updateScreen();
-		_updateScreen = false;
+		displayScreen();
+		_displayScreen = false;
 	}
 
 	_lockWord &= ~2;
diff --git a/engines/agos/gfx.cpp b/engines/agos/gfx.cpp
index b1bf3d12e4..3aa18dd5ec 100644
--- a/engines/agos/gfx.cpp
+++ b/engines/agos/gfx.cpp
@@ -215,13 +215,11 @@ bool AGOSEngine::drawImage_clip(VC10_state *state) {
 		} while (--cur);
 	}
 
-	assert(state->draw_width != 0 && state->draw_height != 0);
-
 	if (getGameType() != GType_FF && getGameType() != GType_PP) {
 		state->draw_width *= 4;
 	}
 
-	return 1;
+	return (state->draw_width != 0 && state->draw_height != 0);
 }
 
 void AGOSEngine_Feeble::scaleClip(int16 h, int16 w, int16 y, int16 x, int16 scrollY) {
@@ -357,7 +355,7 @@ void AGOSEngine_Feeble::drawImage(VC10_state *state) {
 				scaleClip(_scaleHeight, _scaleWidth, _scaleY, _scaleX, _scaleY + _scrollY);
 			}
 		} else {
-			if (drawImage_clip(state) == 0)
+			if (!drawImage_clip(state))
 				return;
 
 			state->surf_addr += state->x + state->y * state->surf_pitch;
@@ -423,7 +421,7 @@ void AGOSEngine_Feeble::drawImage(VC10_state *state) {
 			}
 		}
 	} else {
-		if (drawImage_clip(state) == 0)
+		if (!drawImage_clip(state))
 			return;
 
 		state->surf_addr += state->x + state->y * state->surf_pitch;
@@ -452,6 +450,10 @@ void AGOSEngine_Feeble::drawImage(VC10_state *state) {
 }
 
 void AGOSEngine_Simon1::drawMaskedImage(VC10_state *state) {
+	if (getGameType() == GType_SIMON1 && (_windowNum == 3 || _windowNum == 4 || _windowNum >= 10)) {
+		state->surf2_addr += _videoWindows[17] * 320;
+	}
+
 	if (getFeatures() & GF_32COLOR) {
 		const byte *mask = state->srcPtr + (state->width * state->y_skip * 16) + (state->x_skip * 8);
 		byte *src = state->surf2_addr;
@@ -622,24 +624,14 @@ void AGOSEngine_Simon1::draw32ColorImage(VC10_state *state) {
 void AGOSEngine_Simon1::drawImage(VC10_state *state) {
 	const uint16 *vlut = &_videoWindows[_windowNum * 4];
 
-	if (drawImage_clip(state) == 0)
+	if (!drawImage_clip(state))
 		return;
 
 	if (getFeatures() & GF_32COLOR)
 		state->palette = 0xC0;
 
 	uint16 xoffs = 0, yoffs = 0;
-	if (!_oldDrawMethod) {
-		if (getGameType() == GType_SIMON1 && (_subroutine == 2923 || _subroutine == 2926)) {
-			// Allow one section of Simon the Sorcerer 1 introduction to be displayed
-			// in lower half of screen
-			xoffs = state->x * 8;
-			yoffs = state->y;
-		} else {
-			xoffs = ((vlut[0] - _videoWindows[16]) * 2 + state->x) * 8;
-			yoffs = (vlut[1] - _videoWindows[17] + state->y);
-		}
-	} else if (getGameType() == GType_SIMON2) {
+	if (getGameType() == GType_SIMON2) {
 		state->surf2_addr = getBackGround();
 		state->surf2_pitch = _screenWidth;
 
@@ -724,12 +716,6 @@ void AGOSEngine::drawBackGroundImage(VC10_state *state) {
 }
 
 void AGOSEngine::drawVertImage(VC10_state *state) {
-	if (getGameType() == GType_SIMON2 && (state->flags & kDFUseFrontBuf) && getBitFlag(171) &&
-		!_oldDrawMethod) {
-		state->surf_addr = state->surf2_addr;
-		state->surf_pitch = state->surf2_pitch;
-	}
-
 	if (state->flags & kDFCompressed) {
 		uint w, h;
 		byte *src, *dst, *dstPtr;
@@ -793,7 +779,7 @@ void AGOSEngine::drawVertImage(VC10_state *state) {
 void AGOSEngine::drawImage(VC10_state *state) {
 	const uint16 *vlut = &_videoWindows[_windowNum * 4];
 
-	if (drawImage_clip(state) == 0)
+	if (!drawImage_clip(state))
 		return;
 
 	uint16 xoffs = 0, yoffs = 0;
@@ -850,7 +836,6 @@ void AGOSEngine::drawImage(VC10_state *state) {
 
 			xoffs = (vlut[0] * 2 + state->x) * 8;
 			yoffs = vlut[1] + state->y;
-
 		} else {
 			state->surf_addr = _window4BackScn;
 			state->surf_pitch = _videoWindows[18] * 16;
@@ -900,10 +885,10 @@ void AGOSEngine::horizontalScroll(VC10_state *state) {
 
 	vcWriteVar(251, _scrollX);
 
-	if (!_oldDrawMethod) {
-		dst = getBackBuf();
-	} else {
+	if (getGameType() == GType_SIMON2) {
 		dst = _window4BackScn;
+	} else {
+		dst = getBackBuf();
 	}
 
 	if (getGameType() == GType_FF)
@@ -1153,7 +1138,7 @@ void AGOSEngine::setImage(uint16 vga_res_id, bool vgaScript) {
 		}
 		assert(READ_BE_UINT16(&((ImageHeader_Simon *) b)->id) == vga_res_id);
 
-		if (!vgaScript && _oldDrawMethod)
+		if (!vgaScript)
 			clearVideoWindow(_windowNum, READ_BE_UINT16(&((ImageHeader_Simon *) b)->color));
 	} else {
 		b = bb + READ_BE_UINT16(bb + 10);
@@ -1220,35 +1205,34 @@ void AGOSEngine::setWindowImageEx(uint16 mode, uint16 vga_res) {
 	if (_lockWord & 0x10)
 		error("setWindowImageEx: _lockWord & 0x10");
 
-	setWindowImage(mode, vga_res);
+	if (getGameType() != GType_PP && getGameType() != GType_FF) {
+		if (getGameType() == GType_WW && (mode == 6 || mode == 8 || mode == 9)) {
+			setWindowImage(mode, vga_res);
+		} else {
+			while (_copyScnFlag)
+				delay(1);
+
+			setWindowImage(mode, vga_res);
+		}
+	} else {
+		setWindowImage(mode, vga_res);
+	}
 }
 
 void AGOSEngine::setWindowImage(uint16 mode, uint16 vga_res_id) {
-	uint num_lines;
 	uint16 updateWindow;
 
 	_windowNum = updateWindow = mode;
 	_lockWord |= 0x20;
 
+	VgaTimerEntry *vte = _vgaTimerList;
+	vte->delay = 2;
+
 	if (getGameType() == GType_FF || getGameType() == GType_PP) {
 		vc27_resetSprite();
 	}
 
-	if (!vga_res_id) {
-		if (getGameType() == GType_SIMON1) {
-			_unkPalFlag = true;
-		} else if (getGameType() == GType_SIMON2 && !_oldDrawMethod) {
-			_useBackGround = true;
-			_restoreWindow6 = true;
-		}
-	}
-
-	if (getGameType() == GType_SIMON1) {
-		if (vga_res_id == 16300) {
-			clearBackFromTop(134);
-			_usePaletteDelay = true;
-		}
-	} else if (getGameType() == GType_SIMON2 || getGameType() == GType_FF) {
+	if (getGameType() == GType_SIMON2 || getGameType() == GType_FF) {
 		_scrollX = 0;
 		_scrollY = 0;
 		_scrollXMax = 0;
@@ -1270,28 +1254,10 @@ void AGOSEngine::setWindowImage(uint16 mode, uint16 vga_res_id) {
 		fillFrontFromBack(0, 0, _screenWidth, _screenHeight);
 		fillBackGroundFromBack(_screenHeight);
 		_syncFlag2 = 1;
-	} else if (getGameType() == GType_SIMON2 && !_oldDrawMethod) { 
-		if (!_useBackGround) {
-			num_lines = _windowNum == 4 ? 134 : 200;
-			_boxStarHeight = num_lines;
-			fillFrontFromBack(0, 0, _screenWidth, num_lines);
-			fillBackGroundFromBack(num_lines);
-			_syncFlag2 = 1;
-		}
-		_useBackGround = false;
-	} else if (getGameType() == GType_SIMON1 && !_oldDrawMethod) {
-		// Allow one section of Simon the Sorcerer 1 introduction to be displayed
-		// in lower half of screen
-		if (_subroutine == 2923 || _subroutine == 2926)
-			num_lines = 200;
-		else
-			num_lines = _windowNum == 4 ? 134 : 200;
-
-		fillFrontFromBack(0, 0, _screenWidth, num_lines);
-		fillBackGroundFromBack(num_lines);
-		_syncFlag2 = 1;
-		_timer5 = 0;
 	} else {
+		_copyScnFlag = 2;
+		_vgaSpriteChanged++;
+
 		if (_window3Flag == 1) {
 			clearVideoBackGround(3, 0); // (window, color)
 		}
@@ -1358,6 +1324,8 @@ void AGOSEngine::setWindowImage(uint16 mode, uint16 vga_res_id) {
 			}
 		}
 
+		_boxStarHeight = height;
+
 		for (; height > 0; height--) {
 			memcpy(dst, src, width);
 			dst += _screenWidth;
@@ -1379,15 +1347,6 @@ void AGOSEngine::setWindowImage(uint16 mode, uint16 vga_res_id) {
 	}
 
 	_lockWord &= ~0x20;
-
-	if (getGameType() == GType_SIMON1) {
-		if (_unkPalFlag) {
-			_unkPalFlag = false;
-			while (_fastFadeInFlag != 0) {
-				delay(10);
-			}
-		}
-	}
 }
 
 } // End of namespace AGOS
diff --git a/engines/agos/icons.cpp b/engines/agos/icons.cpp
index ba79f08508..d01d42a367 100644
--- a/engines/agos/icons.cpp
+++ b/engines/agos/icons.cpp
@@ -787,7 +787,9 @@ void AGOSEngine::removeArrows(WindowBlock *window, uint num) {
 		if (getFeatures() & GF_32COLOR) {
 			// TODO: Manually removes arrows
 		} else {
-			stopAnimate(128);
+			stopAnimate(129);
+			uint8 palette = (getPlatform() == Common::kPlatformAmiga) ? 15: 14;
+			animate(0, 1, 129, 0, 0, palette);
 		}
 	} else if (getGameType() == GType_WW) {
 		setBitFlag(22, false);
diff --git a/engines/agos/input.cpp b/engines/agos/input.cpp
index d0fab120f5..d04d4a783e 100644
--- a/engines/agos/input.cpp
+++ b/engines/agos/input.cpp
@@ -576,10 +576,6 @@ bool AGOSEngine::processSpecialKeys() {
 		if (_debugMode)
 			_continousVgaScript ^= 1;
 		break;
-	case 'i':
-		if (_debugMode)
-			_drawImagesDebug ^= 1;
-		break;
 	case 'd':
 		if (_debugMode)
 			_dumpImages ^=1;
diff --git a/engines/agos/saveload.cpp b/engines/agos/saveload.cpp
index 40960c0cbe..5ec62ac01a 100644
--- a/engines/agos/saveload.cpp
+++ b/engines/agos/saveload.cpp
@@ -224,8 +224,6 @@ void AGOSEngine::userGame(bool load) {
 
 	save_time = time(NULL);
 
-	_copyPartialMode = 1;
-
 	number_of_savegames = countSaveGames();
 	if (!load)
 		number_of_savegames++;
@@ -375,9 +373,6 @@ get_out:;
 	disableFileBoxes();
 
 	_gameStoppedClock = time(NULL) - save_time + _gameStoppedClock;
-	_copyPartialMode = 0;
-
-	restoreBlock(94, 208, 46, 80);
 
 	i = _timer4;
 	do {
diff --git a/engines/agos/script.cpp b/engines/agos/script.cpp
index ecc43038c1..9961a3ff0b 100644
--- a/engines/agos/script.cpp
+++ b/engines/agos/script.cpp
@@ -447,6 +447,18 @@ void AGOSEngine::o_comment() {
 void AGOSEngine::o_haltAnimation() {
 	// 88: stop animation
 	_lockWord |= 0x10;
+
+	if (getGameType() == GType_SIMON1 || getGameType() == GType_SIMON2) {
+		VgaTimerEntry *vte = _vgaTimerList;
+		while (vte->delay) {
+			if (vte->type == 0)
+				vte->delay += 10;
+			vte++;
+		}
+
+		_scrollCount = 0;
+		_scrollFlag = 0;
+	}
 }
 
 void AGOSEngine::o_restartAnimation() {
@@ -511,6 +523,13 @@ void AGOSEngine::o_loadZone() {
 	}
 
 	loadZone(vga_res);
+
+	if (getGameType() == GType_ELVIRA1 || getGameType() == GType_ELVIRA2 ||
+		getGameType() == GType_WW) {
+		_copyScnFlag = 0;
+		_vgaSpriteChanged = 0;
+	}
+
 	_lockWord &= ~0x80;
 }
 
diff --git a/engines/agos/subroutine.cpp b/engines/agos/subroutine.cpp
index 8bff4e43f8..8ab0c49110 100644
--- a/engines/agos/subroutine.cpp
+++ b/engines/agos/subroutine.cpp
@@ -519,16 +519,6 @@ int AGOSEngine::startSubroutine(Subroutine *sub) {
 	int result = -1;
 	SubroutineLine *sl = (SubroutineLine *)((byte *)sub + sub->first);
 
-	// WORKAROUND: Bit Flag 171 isn't set when Simon rides the lion to the
-	// goblin camp in non-English versions. Bit Flag 171 is required to display 
-	// the red trail between locations on the map, during the ride.
-	if (getGameType() == GType_SIMON2 && !_oldDrawMethod) {
-		if (sub->id == 13020)
-			setBitFlag(171, true);
-		if (sub->id == 13021)
-			setBitFlag(171, false);
-	}
-
 	const byte *old_code_ptr = _codePtr;
 	Subroutine *old_currentTable = _currentTable;
 	SubroutineLine *old_currentLine = _currentLine;
diff --git a/engines/agos/vga.cpp b/engines/agos/vga.cpp
index 5b8bbafd54..c96ad6afdd 100644
--- a/engines/agos/vga.cpp
+++ b/engines/agos/vga.cpp
@@ -708,7 +708,6 @@ void AGOSEngine::drawImage_init(int16 image, uint16 palette, uint16 x, uint16 y,
 }
 
 void AGOSEngine::vc12_delay() {
-	VgaSprite *vsp = findCurSprite();
 	uint16 num;
 
 	if (getGameType() == GType_FF || getGameType() == GType_PP) {
@@ -719,12 +718,7 @@ void AGOSEngine::vc12_delay() {
 		num = vcReadVarOrWord() * _frameRate;
 	}
 
-	// Work around to allow inventory arrows to be shown
-	// in non-Windows versions of Simon the Sorcerer 1
-	if ((getGameType() == GType_SIMON1) && vsp->id == 128)
-		num = 0;
-	else
-		num += _vgaBaseDelay;
+	num += _vgaBaseDelay;
 
 	addVgaEvent(num, _vcPtr, _vgaCurSpriteId, _vgaCurZoneNum);
 	_vcPtr = (byte *)&_vc_get_out_of_code;
@@ -1012,8 +1006,8 @@ void AGOSEngine::vc27_resetSprite() {
 
 	vsp = _vgaSprites;
 	while (vsp->id) {
-		if ((getGameType() == GType_SIMON1 && vsp->id == 128) ||
-			(getGameType() == GType_ELVIRA2 && vsp->id == 100)) {
+		// For animated heart in Elvira 2
+		if (getGameType() == GType_ELVIRA2 && vsp->id == 100) {
 			memcpy(&bak, vsp, sizeof(VgaSprite));
 		}
 		vsp->id = 0;
@@ -1037,8 +1031,11 @@ void AGOSEngine::vc27_resetSprite() {
 
 	vte = _vgaTimerList;
 	while (vte->delay) {
-		if ((getGameType() == GType_SIMON1 && vte->sprite_id == 128) ||
-			(getGameType() == GType_ELVIRA2 && vte->sprite_id == 100)) {
+		// Skip the animateSprites event in earlier games
+		if (vte->type == 2) {
+			vte++;
+		// For animated heart in Elvira 2
+		} else if (getGameType() == GType_ELVIRA2 && vte->sprite_id == 100) {
 			vte++;
 		} else {
 			vte2 = vte;
@@ -1225,6 +1222,7 @@ void AGOSEngine::vc35_clearWindow() {
 
 	// Clear video window
 	clearVideoWindow(num, color);
+	_vgaSpriteChanged++;
 
 	// Clear video background
 	if (getGameType() == GType_ELVIRA1) {
@@ -1242,18 +1240,12 @@ void AGOSEngine::vc35_clearWindow() {
 }
 
 void AGOSEngine::vc36_setWindowImage() {
-	_updateScreen = false;
+	_displayScreen = false;
 	uint16 vga_res = vcReadNextWord();
 	uint16 windowNum = vcReadNextWord();
 
 	if (getGameType() == GType_FF || getGameType() == GType_PP) {
 		_copyPartialMode = 2;
-	} else if (getGameType() == GType_SIMON1) {
-		if (windowNum == 16 && !_oldDrawMethod) {
-			_copyPartialMode = 2;
-		} else {
-			setWindowImage(windowNum, vga_res);
-		}
 	} else {
 		setWindowImage(windowNum, vga_res);
 	}
@@ -1299,7 +1291,7 @@ void AGOSEngine::vc40() {
 	uint16 var = vcReadNextWord();
 	int16 value = vcReadVar(var) + vcReadNextWord();
 
-	if ((getGameType() == GType_SIMON2) && var == 15 && !getBitFlag(80)) {
+	if (getGameType() == GType_SIMON2 && var == 15 && !getBitFlag(80)) {
 		int16 tmp;
 
 		if (_scrollCount != 0) {
@@ -1316,7 +1308,7 @@ void AGOSEngine::vc40() {
 			tmp = _scrollXMax - _scrollX;
 			if (tmp < 20)
 				_scrollCount = tmp;
-			addVgaEvent(6, NULL, 0, 0);	 /* scroll event */
+			addVgaEvent(6, NULL, 0, 0, 1);	 /* scroll event */
 		}
 	}
 no_scroll:;
@@ -1328,7 +1320,7 @@ void AGOSEngine::vc41() {
 	uint16 var = vcReadNextWord();
 	int16 value = vcReadVar(var) - vcReadNextWord();
 
-	if ((getGameType() == GType_SIMON2) && var == 15 && !getBitFlag(80)) {
+	if (getGameType() == GType_SIMON2 && var == 15 && !getBitFlag(80)) {
 		if (_scrollCount != 0) {
 			if (_scrollCount < 0)
 				goto no_scroll;
@@ -1342,7 +1334,7 @@ void AGOSEngine::vc41() {
 			_scrollCount = -20;
 			if (_scrollX < 20)
 				_scrollCount = -_scrollX;
-			addVgaEvent(6, NULL, 0, 0);	 /* scroll event */
+			addVgaEvent(6, NULL, 0, 0, 1);	 /* scroll event */
 		}
 	}
 no_scroll:;
diff --git a/engines/agos/vga_e2.cpp b/engines/agos/vga_e2.cpp
index 2c40037b40..05a7f9fc76 100644
--- a/engines/agos/vga_e2.cpp
+++ b/engines/agos/vga_e2.cpp
@@ -230,6 +230,7 @@ void AGOSEngine::vc56_fullScreen() {
 	byte *dst = getFrontBuf();
 
 	memcpy(dst, src + 768, _screenHeight * _screenWidth);
+
 	//fullFade();
 
 	uint8 palette[1024];
diff --git a/engines/agos/vga_ww.cpp b/engines/agos/vga_ww.cpp
index f9995fc715..087623e1cc 100644
--- a/engines/agos/vga_ww.cpp
+++ b/engines/agos/vga_ww.cpp
@@ -72,8 +72,11 @@ void AGOSEngine::vcStopAnimation(uint file, uint sprite) {
 		vc25_halt_sprite();
 
 		vte = _vgaTimerList;
-		while (vte->delay != 0) {
-			if (vte->sprite_id == _vgaCurSpriteId && ((getGameType() == GType_SIMON1) || vte->cur_vga_file == _vgaCurZoneNum)) {
+		while (vte->delay) {
+			// Skip the animateSprites event in earlier games
+			if (vte->type == 2) {
+				vte++;
+			} else if (vte->sprite_id == _vgaCurSpriteId && (getGameType() == GType_SIMON1 || vte->cur_vga_file == _vgaCurZoneNum)) {
 				deleteVgaEvent(vte);
 				break;
 			}
@@ -190,49 +193,14 @@ void AGOSEngine::vc62_fastFadeOut() {
 			delay(5);
 		}
 
-		if (getGameType() == GType_SIMON1) {
-			VgaSprite *vsp;
-			VgaPointersEntry *vpe;
-			VC10_state state;
-
-			vsp = _vgaSprites;
-			while (vsp->id != 0) {
-				if (vsp->id == 128) {
-					byte *old_file_1 = _curVgaFile1;
-					byte *old_file_2 = _curVgaFile2;
-					uint palmode = _windowNum;
-
-					vpe = &_vgaBufferPointers[vsp->zoneNum];
-					_curVgaFile1 = vpe->vgaFile1;
-					_curVgaFile2 = vpe->vgaFile2;
-					_windowNum = vsp->windowNum;
-
-					drawImage_init(vsp->image, vsp->palette, vsp->x, vsp->y, vsp->flags);
-
-					_windowNum = palmode;
-					_curVgaFile1 = old_file_1;
-					_curVgaFile2 = old_file_2;
-					break;
-				}
-				vsp++;
-			}
-		}
-
 		if (getGameType() == GType_FF || getGameType() == GType_PP) {
 			clearSurfaces(480);
 		} else if (getGameType() == GType_WW) {
 			memset(getFrontBuf(), 0, _screenWidth * _screenHeight);
-		} else if (!_oldDrawMethod) {
-			// Allow one section of Simon the Sorcerer 1 introduction to be displayed
-			// in lower half of screen
-			if ((getGameType() == GType_SIMON1) && (_subroutine == 2923 || _subroutine == 2926)) {
-				clearSurfaces(200);
-			} else {
-				clearSurfaces(_windowNum == 4 ? 134 : 200);
-			}
 		} else {
-			if (_windowNum != 4)
+			if (_windowNum != 4) {
 				memset(getFrontBuf(), 0, _screenWidth * _screenHeight);
+			}
 		}
 	}
 	if (getGameType() == GType_SIMON2) {