Add releaseAll function

Author: dmadison

keywords.txt

@@ -29,6 +29,8 @@ setDpad	KEYWORD2
 setTrigger	KEYWORD2
 setJoystick	KEYWORD2
 
+releaseAll	KEYWORD2
+
 # Receive data
 getPlayer	KEYWORD2
 getRumble	KEYWORD2

src/XInput.cpp

@@ -206,6 +206,11 @@ void XInputGamepad::setJoystick(XInputControl joy, int16_t x, int16_t y) {
 	tx[joyData->y_high] = highByte(y);
 }
 
+void XInputGamepad::releaseAll() {
+	const uint8_t offset = 2;  // Skip message type and packet size
+	memset(tx + offset, 0x00, sizeof(tx) - offset);  // Clear TX array
+}
+
 uint8_t XInputGamepad::getPlayer() const {
 	return player;
 }

src/XInput.h

@@ -85,6 +85,8 @@ class XInputGamepad {
 
 	void setJoystick(XInputControl joy, int16_t x, int16_t y);
 
+	void releaseAll();
+
 	// Received Data
 	uint8_t getPlayer() const;  // Player # assigned to the controller (0 is unassigned)
 	uint16_t getRumble() const;  // Rumble motors. MSB is large weight, LSB is small