getting close with android inutr

Camera2D.gd

@@ -2,12 +2,20 @@ extends Camera2D
 
 var last_mouse_position = Vector2.ZERO
 
+var touch_start_positions = {}
+var last_zoom_distance = -1
+var last_zoom_center = Vector2.ZERO
+
 func _ready():
 	set_process_input(true)
 
 func _input(event):
 	print(event.as_text())
-		
+
+	handle_mouse_events(event)
+	handle_touch_events(event)
+	
+func handle_mouse_events(event):
 	if event is InputEventMouseButton:
 		if event.button_index == MOUSE_BUTTON_RIGHT and event.pressed:
 			last_mouse_position = get_global_mouse_position()
@@ -36,3 +44,36 @@ func zoom_towards_mouse(zoom_factor):
 	zoom *= zoom_factor
 	var diff = previous_mouse_position - get_local_mouse_position()
 	position += diff
+
+func handle_touch_events(event):
+	if event is InputEventScreenTouch:
+		if event.pressed:
+			touch_start_positions[event.index] = event.position
+			if len(touch_start_positions) == 2:
+				last_zoom_distance = touch_start_positions[0].distance_to(touch_start_positions[1])
+				last_zoom_center = (touch_start_positions[0] + touch_start_positions[1]) / 2.0
+		else:
+			touch_start_positions.erase(event.index)
+			last_zoom_distance = -1
+			last_zoom_center = Vector2.ZERO
+
+	elif event is InputEventScreenDrag:
+		if event.index in touch_start_positions:
+			touch_start_positions[event.index] = event.position
+			if len(touch_start_positions) == 2:
+				var new_zoom_center = (touch_start_positions[0] + touch_start_positions[1]) / 2.0
+				var new_zoom_distance = touch_start_positions[0].distance_to(touch_start_positions[1])
+
+				if last_zoom_distance > 0:
+					var zoom_factor = last_zoom_distance / new_zoom_distance
+					zoom_towards_point(last_zoom_center, zoom_factor)
+					position -= (new_zoom_center - last_zoom_center) / zoom
+
+				last_zoom_distance = new_zoom_distance
+				last_zoom_center = new_zoom_center
+
+func zoom_towards_point(zoom_center: Vector2, zoom_factor: float):
+	var local_zoom_center = (zoom_center - global_position) / zoom
+	zoom *= Vector2(zoom_factor, zoom_factor)
+	var diff = local_zoom_center - (zoom_center - global_position) / zoom
+	position += diff

export_presets.cfg

@@ -8,7 +8,7 @@ custom_features=""
 export_filter="all_resources"
 include_filter="saves/*"
 exclude_filter=""
-export_path="bin/alpha11.apk"
+export_path="bin/alpha104.apk"
 encryption_include_filters=""
 encryption_exclude_filters=""
 encrypt_pck=false

project.godot

@@ -72,5 +72,4 @@ escape={
 
 [rendering]
 
-renderer/rendering_method="gl_compatibility"
 textures/vram_compression/import_etc2_astc=true