MOHAWK: Implement Mechanical opcodes 109, 110, 111, 112, 113 and 114. Fortress rotation controls.

QuickTime Custom framerate and backwards playback is required for the actual rotation to be implemented (opcode 205).  

2 files changed, 114 insertions, 27 deletions

diff --git a/engines/mohawk/myst_stacks/mechanical.cpp b/engines/mohawk/myst_stacks/mechanical.cpp
index b8a6b3110e..dbb1aeae69 100644
--- a/engines/mohawk/myst_stacks/mechanical.cpp
+++ b/engines/mohawk/myst_stacks/mechanical.cpp
@@ -59,6 +59,12 @@ void Mechanical::setupOpcodes() {
 	OPCODE(106, o_elevatorRotationStart);
 	OPCODE(107, o_elevatorRotationMove);
 	OPCODE(108, o_elevatorRotationStop);
+	OPCODE(109, o_fortressRotationSpeedStart);
+	OPCODE(110, o_fortressRotationSpeedMove);
+	OPCODE(111, o_fortressRotationSpeedStop);
+	OPCODE(112, o_fortressRotationBrakeStart);
+	OPCODE(113, o_fortressRotationBrakeMove);
+	OPCODE(114, o_fortressRotationBrakeStop);
 	OPCODE(121, o_elevatorWindowMovie);
 	OPCODE(122, o_elevatorGoMiddle);
 	OPCODE(123, o_elevatorTopMovie);
@@ -78,7 +84,7 @@ void Mechanical::setupOpcodes() {
 	OPCODE(202, o_bird_init);
 	OPCODE(203, o_snakeBox_init);
 	OPCODE(204, o_elevatorRotation_init);
-	OPCODE(205, opcode_205);
+	OPCODE(205, o_fortressRotation_init);
 	OPCODE(206, opcode_206);
 	OPCODE(209, opcode_209);
 
@@ -89,11 +95,11 @@ void Mechanical::setupOpcodes() {
 #undef OPCODE
 
 void Mechanical::disablePersistentScripts() {
-	opcode_205_disable();
 	opcode_206_disable();
 	opcode_209_disable();
 	_elevatorGoingMiddle = false;
 	_birdSinging = false;
+	_fortressRotationRunning = false;
 }
 
 void Mechanical::runPersistentScripts() {
@@ -106,7 +112,9 @@ void Mechanical::runPersistentScripts() {
 	if (_elevatorGoingMiddle)
 		elevatorGoMiddle_run();
 
-	opcode_205_run();
+	if (_fortressRotationRunning)
+		fortressRotation_run();
+
 	opcode_206_run();
 	opcode_209_run();
 }
@@ -379,6 +387,85 @@ void Mechanical::o_elevatorRotationStop(uint16 op, uint16 var, uint16 argc, uint
 	_vm->checkCursorHints();
 }
 
+void Mechanical::o_fortressRotationSpeedStart(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation speed lever start", op);
+
+	_vm->_cursor->setCursor(700);
+
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+	lever->drawFrame(0);
+}
+
+void Mechanical::o_fortressRotationSpeedMove(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation speed lever move", op);
+
+	const Common::Point &mouse = _vm->_system->getEventManager()->getMousePos();
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+
+	// Make the handle follow the mouse
+	int16 maxStep = lever->getNumFrames() - 1;
+	Common::Rect rect = lever->getRect();
+	int16 step = ((rect.top + 65 - mouse.y) * lever->getNumFrames()) / 65;
+	step = CLIP<int16>(step, 0, maxStep);
+
+	_fortressRotationSpeed = step;
+
+	// Draw current frame
+	lever->drawFrame(step);
+}
+
+void Mechanical::o_fortressRotationSpeedStop(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation speed lever stop", op);
+
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+
+	// Release lever
+	for (int i = _fortressRotationSpeed; i >= 0; i--) {
+		lever->drawFrame(i);
+		_vm->_system->delayMillis(10);
+	}
+
+	_fortressRotationSpeed = 0;
+
+	_vm->checkCursorHints();
+}
+
+void Mechanical::o_fortressRotationBrakeStart(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation brake lever start", op);
+
+	_vm->_cursor->setCursor(700);
+
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+	lever->drawFrame(_fortressRotationBrake);
+}
+
+void Mechanical::o_fortressRotationBrakeMove(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation brake lever move", op);
+
+	const Common::Point &mouse = _vm->_system->getEventManager()->getMousePos();
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+
+	// Make the handle follow the mouse
+	int16 maxStep = lever->getNumFrames() - 1;
+	Common::Rect rect = lever->getRect();
+	int16 step = ((rect.top + 65 - mouse.y) * lever->getNumFrames()) / 65;
+	step = CLIP<int16>(step, 0, maxStep);
+
+	_fortressRotationBrake = step;
+
+	// Draw current frame
+	lever->drawFrame(step);
+}
+
+void Mechanical::o_fortressRotationBrakeStop(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d Fortress rotation brake lever stop", op);
+
+	MystResourceType12 *lever = static_cast<MystResourceType12 *>(_invokingResource);
+	lever->drawFrame(_fortressRotationBrake);
+
+	_vm->checkCursorHints();
+}
+
 void Mechanical::o_elevatorWindowMovie(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
 	uint16 startTime = argv[0];
 	uint16 endTime = argv[1];
@@ -596,36 +683,24 @@ void Mechanical::o_elevatorRotation_init(uint16 op, uint16 var, uint16 argc, uin
 	_elevatorRotationLeverMoving = false;
 }
 
-static struct {
-	uint16 soundIdPosition[4];
-
-	bool enabled;
-} g_opcode205Parameters;
-
-void Mechanical::opcode_205_run() {
+void Mechanical::fortressRotation_run() {
 	// Used for Card 6156 (Fortress Rotation Controls)
 	// TODO: Fill in function...
-	// g_opcode205Parameters.soundIdPosition[4]
 }
 
-void Mechanical::opcode_205_disable() {
-	g_opcode205Parameters.enabled = false;
-}
+void Mechanical::o_fortressRotation_init(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
+	debugC(kDebugScript, "Opcode %d: Fortress rotation init", op);
 
-void Mechanical::opcode_205(uint16 op, uint16 var, uint16 argc, uint16 *argv) {
-	varUnusedCheck(op, var);
+	_fortressRotationGears = static_cast<MystResourceType6 *>(_invokingResource);
 
-	// Used for Card 6156 (Fortress Rotation Controls)
+	_fortressRotationSounds[0] = argv[0];
+	_fortressRotationSounds[1] = argv[1];
+	_fortressRotationSounds[2] = argv[2];
+	_fortressRotationSounds[3] = argv[3];
 
-	if (argc == 4) {
-		g_opcode205Parameters.soundIdPosition[0] = argv[0];
-		g_opcode205Parameters.soundIdPosition[1] = argv[1];
-		g_opcode205Parameters.soundIdPosition[2] = argv[2];
-		g_opcode205Parameters.soundIdPosition[3] = argv[3];
+	_fortressRotationBrake = 0;
 
-		g_opcode205Parameters.enabled = true;
-	} else
-		unknown(op, var, argc, argv);
+	_fortressRotationRunning = true;
 }
 
 static struct {
diff --git a/engines/mohawk/myst_stacks/mechanical.h b/engines/mohawk/myst_stacks/mechanical.h
index 320fbb77cd..9b383fe435 100644
--- a/engines/mohawk/myst_stacks/mechanical.h
+++ b/engines/mohawk/myst_stacks/mechanical.h
@@ -52,7 +52,7 @@ private:
 	void birdSing_run();
 	void elevatorRotation_run();
 	void elevatorGoMiddle_run();
-	void opcode_205_run();
+	void fortressRotation_run();
 	void opcode_205_disable();
 	void opcode_206_run();
 	void opcode_206_disable();
@@ -67,6 +67,12 @@ private:
 	DECLARE_OPCODE(o_elevatorRotationStart);
 	DECLARE_OPCODE(o_elevatorRotationMove);
 	DECLARE_OPCODE(o_elevatorRotationStop);
+	DECLARE_OPCODE(o_fortressRotationSpeedStart);
+	DECLARE_OPCODE(o_fortressRotationSpeedMove);
+	DECLARE_OPCODE(o_fortressRotationSpeedStop);
+	DECLARE_OPCODE(o_fortressRotationBrakeStart);
+	DECLARE_OPCODE(o_fortressRotationBrakeMove);
+	DECLARE_OPCODE(o_fortressRotationBrakeStop);
 	DECLARE_OPCODE(o_elevatorWindowMovie);
 	DECLARE_OPCODE(o_elevatorGoMiddle);
 	DECLARE_OPCODE(o_elevatorTopMovie);
@@ -85,7 +91,7 @@ private:
 	DECLARE_OPCODE(o_bird_init);
 	DECLARE_OPCODE(o_snakeBox_init);
 	DECLARE_OPCODE(o_elevatorRotation_init);
-	DECLARE_OPCODE(opcode_205);
+	DECLARE_OPCODE(o_fortressRotation_init);
 	DECLARE_OPCODE(opcode_206);
 	DECLARE_OPCODE(opcode_209);
 
@@ -93,7 +99,13 @@ private:
 
 	bool _mystStaircaseState; // 76
 
+	bool _fortressRotationRunning;
+	uint16 _fortressRotationSpeed; // 78
+	uint16 _fortressRotationBrake; // 80
 	uint16 _fortressPosition; // 82
+	uint16 _fortressRotationSounds[4]; // 86 to 92
+	MystResourceType6 *_fortressRotationGears; // 172
+
 
 	uint16 _elevatorGoingDown; // 112