Enumerations
enum	touchJoystick_t { TB_CENTER = 0x0100 , TB_RIGHT = 0x0200 , TB_UP = 0x0400 , TB_LEFT = 0x0800 , TB_DOWN = 0x1000 , TB_UP_RIGHT = 0x0600 , TB_UP_LEFT = 0x0C00 , TB_DOWN_LEFT = 0x1800 , TB_DOWN_RIGHT = 0x1200 }
	Bitmask values for all the virtual joystick positions of getTouchJoystickZones() More...

Functions
void	getTouchCartesian (int32_t angle, int32_t radius, int32_t x, int32_t y)
	Convert touchpad angle and radius to cartesian coordinates.

touchJoystick_t	getTouchJoystickZones (int32_t angle, int32_t radius, bool useCenter, bool useDiagonals)
	Convert touchpad angle and radius to a joystick enum, with either 4 or 8 directions and an optional center dead-zone.

void	getTouchSpins (touchSpinState_t *state, int32_t angle, int32_t radius)
	Calculate the number of times the touchpad was circled.

Data Structure Documentation

◆ touchSpinState_t

struct touchSpinState_t

Data Fields
bool	startSet
int32_t	startAngle
int32_t	startRadius
int32_t	lastAngle
int32_t	lastRadius
int32_t	spins	The number of complete CCW spins made. Negative indicates clockwise spins.
int32_t	remainder	The angle of the partial CCW spin, or negative for a CW spin.

Bitmask values for all the virtual joystick positions of getTouchJoystickZones()

Convert touchpad angle and radius to cartesian coordinates.

Parameters

	angle	The touchpad angle to convert
	radius	The touchpad radius to convert
[out]	x	A pointer to be set to the X touch coordinate, from 0 to 1023
[out]	y	A pointer to be set to the Y touch coordinate, from 0 to 1023

touchJoystick_t getTouchJoystickZones	(	int32_t	angle,
		int32_t	radius,
		bool	useCenter,
		bool	useDiagonals )

Convert touchpad angle and radius to a joystick enum, with either 4 or 8 directions and an optional center dead-zone.

Parameters

angle	The touch angle reported by getTouchJoystick()
radius	The touch radius reported by getTouchJoystick()
useCenter	If true, TB_CENTER will be returned if the stick is touched but inside the dead-zone
useDiagonals	If true, diagonal directions will be returned as the bitwise OR of two directions

Returns: touchJoystick_t The joystick direction, or 0 if no direction could be determined.

Calculate the number of times the touchpad was circled.

When the touch is done, reset startSet to 0

Parameters

[in,out]	state	A pointer to a touchSpinState_t to use for state.
	angle	The current angle of the touch
	radius	The current radius of the touch