Set control surface 'get' functions as const

Author: dmadison

src/XInput.cpp

@@ -261,29 +261,29 @@ void XInputGamepad::releaseAll() {
 	newData = true;  // Data changed and is unsent
 }
 
-boolean XInputGamepad::getButton(XInputControl button) {
+boolean XInputGamepad::getButton(XInputControl button) const {
 	const XInputMap_Button * buttonData = getButtonFromEnum(button);
 	if (buttonData == nullptr) return 0;  // Not a button
 	return tx[buttonData->index] & buttonData->mask;
 }
 
-boolean XInputGamepad::getDpad(XInputControl dpad) {
+boolean XInputGamepad::getDpad(XInputControl dpad) const {
 	return getButton(dpad);
 }
 
-uint8_t XInputGamepad::getTrigger(XInputControl trigger) {
+uint8_t XInputGamepad::getTrigger(XInputControl trigger) const {
 	const XInputMap_Trigger * triggerData = getTriggerFromEnum(trigger);
 	if (triggerData == nullptr) return 0;  // Not a trigger
 	return tx[triggerData->index];
 }
 
-int16_t XInputGamepad::getJoystickX(XInputControl joy) {
+int16_t XInputGamepad::getJoystickX(XInputControl joy) const {
 	const XInputMap_Joystick * joyData = getJoyFromEnum(joy);
 	if (joyData == nullptr) return 0;  // Not a joystick
 	return (tx[joyData->x_high] << 8) | tx[joyData->x_low];
 }
 
-int16_t XInputGamepad::getJoystickY(XInputControl joy) {
+int16_t XInputGamepad::getJoystickY(XInputControl joy) const {
 	const XInputMap_Joystick * joyData = getJoyFromEnum(joy);
 	if (joyData == nullptr) return 0;  // Not a joystick
 	return (tx[joyData->y_high] << 8) | tx[joyData->y_low];

src/XInput.h

@@ -73,7 +73,7 @@ class XInputGamepad {
 public:
 	XInputGamepad();
 
-	// Control surfaces
+	// Set Control Surfaces
 	void press(XInputControl button);
 	void release(XInputControl button);
 	void setButton(XInputControl button, boolean state);
@@ -87,11 +87,12 @@ class XInputGamepad {
 
 	void releaseAll();
 
-	boolean getButton(XInputControl button);
-	boolean getDpad(XInputControl dpad);
-	uint8_t getTrigger(XInputControl trigger);
-	int16_t getJoystickX(XInputControl joy);
-	int16_t getJoystickY(XInputControl joy);
+	// Read Control Surfaces
+	boolean getButton(XInputControl button) const;
+	boolean getDpad(XInputControl dpad) const;
+	uint8_t getTrigger(XInputControl trigger) const;
+	int16_t getJoystickX(XInputControl joy) const;
+	int16_t getJoystickY(XInputControl joy) const;
 
 	// Received Data
 	uint8_t getPlayer() const;  // Player # assigned to the controller (0 is unassigned)