project for a (works on my devices) demo

headers/input/touch/touch_controller_L3.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "touch_controller_L2.h"
+
+void TC_L3_get_position_deltas(
+	touch_event **previous, uint8_t previous_count, 
+	touch_event **current, uint8_t current_count, 
+	touch_coordinates **deltas, uint8_t *count
+);
+
+float TC_L3_get_angle_delta( float previous_angle, float current_angle);
+
+touch_coordinates* TC_L3_get_midpoint_delta( touch_coordinates previous, touch_coordinates current);