MOHAWK: Stub off Riven transition speed code

engines/mohawk/graphics.cpp

@@ -921,7 +921,8 @@ void RivenGraphics::clearMainScreen() {
 }
 
 void RivenGraphics::fadeToBlack() {
-	// Self-explanatory
+	// The transition speed is forced to best here
+	setTransitionSpeed(kRivenTransitionSpeedBest);
 	scheduleTransition(16);
 	clearMainScreen();
 	runScheduledTransition();

engines/mohawk/graphics.h

@@ -196,6 +196,7 @@ public:
 	void scheduleTransition(uint16 id, Common::Rect rect = Common::Rect(0, 0, 608, 392));
 	void runScheduledTransition();
 	void fadeToBlack();
+	void setTransitionSpeed(uint32 speed) { _transitionSpeed = speed; }
 
 	// Inventory
 	void showInventory();
@@ -231,6 +232,7 @@ private:
 	// Transitions
 	int16 _scheduledTransition;
 	Common::Rect _transitionRect;
+	uint32 _transitionSpeed;
 
 	// Inventory
 	void clearInventoryArea();

engines/mohawk/riven.cpp

@@ -150,6 +150,9 @@ Common::Error MohawkEngine_Riven::run() {
 		return Common::kNoGameDataFoundError;
 	}
 
+	// Set the transition speed
+	_gfx->setTransitionSpeed(_vars["transitionmode"]);
+
 	// Start at main cursor
 	_cursor->setCursor(kRivenMainCursor);
 	_cursor->showCursor();

engines/mohawk/riven.h

@@ -67,6 +67,13 @@ enum {
 	StackNames = 5
 };
 
+enum RivenTransitionSpeed {
+	kRivenTransitionSpeedNone = 5000,
+	kRivenTransitionSpeedFastest = 5001,
+	kRivenTransitionSpeedNormal = 5002,
+	kRivenTransitionSpeedBest = 5003
+};
+
 // Rects for the inventory object positions (initialized in
 // MohawkEngine_Riven's constructor).
 extern Common::Rect *g_atrusJournalRect1;

engines/mohawk/riven_vars.cpp

@@ -304,6 +304,7 @@ void MohawkEngine_Riven::initVars() {
 	_vars["bmagcar"] = 1;
 	_vars["gnmagcar"] = 1;
 	_vars["omusicplayer"] = 1;
+	_vars["transitionmode"] = kRivenTransitionSpeedFastest;
 
 	// Randomize the telescope combination
 	uint32 &teleCombo = _vars["tcorrectorder"];