private extern class AMotionEventAction `{ int32_t `}
	fun action: Int `{ return self & AMOTION_EVENT_ACTION_MASK; `}

	# Pointer index concerned by this action
	#
	# Require: `is_pointer_down or is_pointer_up`
	fun pointer_index: Int `{
		return (self & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
	`}

	fun is_down: Bool do return action == 0
	fun is_up: Bool do return action == 1
	fun is_move: Bool do return action == 2
	fun is_cancel: Bool do return action == 3
	fun is_outside: Bool do return action == 4
	fun is_pointer_down: Bool do return action == 5
	fun is_pointer_up: Bool do return action == 6
end