diff --git a/lib/include/chiaki/controller.h b/lib/include/chiaki/controller.h
index 2a870d0..258cd89 100644
--- a/lib/include/chiaki/controller.h
+++ b/lib/include/chiaki/controller.h
@@ -85,6 +85,15 @@ typedef struct chiaki_controller_state_t
 
 CHIAKI_EXPORT void chiaki_controller_state_set_idle(ChiakiControllerState *state);
 
+/**
+ * @return A non-negative newly allocated touch id allocated or -1 if there are no slots left
+ */
+CHIAKI_EXPORT int8_t chiaki_controller_state_start_touch(ChiakiControllerState *state, uint16_t x, uint16_t y);
+
+CHIAKI_EXPORT void chiaki_controller_state_stop_touch(ChiakiControllerState *state, uint8_t id);
+
+CHIAKI_EXPORT void chiaki_controller_state_set_touch_pos(ChiakiControllerState *state, uint8_t id, uint16_t x, uint16_t y);
+
 static inline bool chiaki_controller_state_equals(ChiakiControllerState *a, ChiakiControllerState *b)
 {
 	if(!(a->buttons == b->buttons
diff --git a/lib/src/controller.c b/lib/src/controller.c
index a3853bd..a50cac4 100644
--- a/lib/src/controller.c
+++ b/lib/src/controller.c
@@ -17,6 +17,8 @@
 
 #include <chiaki/controller.h>
 
+#define TOUCH_ID_MASK 0x7f
+
 CHIAKI_EXPORT void chiaki_controller_state_set_idle(ChiakiControllerState *state)
 {
 	state->buttons = 0;
@@ -26,6 +28,48 @@ CHIAKI_EXPORT void chiaki_controller_state_set_idle(ChiakiControllerState *state
 	state->right_y = 0;
 }
 
+CHIAKI_EXPORT int8_t chiaki_controller_state_start_touch(ChiakiControllerState *state, uint16_t x, uint16_t y)
+{
+	for(size_t i=0; i<CHIAKI_CONTROLLER_TOUCHES_MAX; i++)
+	{
+		if(state->touches[i].id < 0)
+		{
+			state->touches[i].id = state->touch_id_next;
+			state->touch_id_next = (state->touch_id_next + 1) & TOUCH_ID_MASK;
+			state->touches[i].x = x;
+			state->touches[i].y = y;
+			break;
+		}
+	}
+	return -1;
+}
+
+CHIAKI_EXPORT void chiaki_controller_state_stop_touch(ChiakiControllerState *state, uint8_t id)
+{
+	for(size_t i=0; i<CHIAKI_CONTROLLER_TOUCHES_MAX; i++)
+	{
+		if(state->touches[i].id == id)
+		{
+			state->touches[i].id = -1;
+			break;
+		}
+	}
+}
+
+CHIAKI_EXPORT void chiaki_controller_state_set_touch_pos(ChiakiControllerState *state, uint8_t id, uint16_t x, uint16_t y)
+{
+	id &= TOUCH_ID_MASK;
+	for(size_t i=0; i<CHIAKI_CONTROLLER_TOUCHES_MAX; i++)
+	{
+		if(state->touches[i].id == id)
+		{
+			state->touches[i].x = x;
+			state->touches[i].y = y;
+			break;
+		}
+	}
+}
+
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
 #define ABS(a) ((a) > 0 ? (a) : -(a))
 #define MAX_ABS(a, b) (ABS(a) > ABS(b) ? (a) : (b))