Add get_stat function to terrain.gd

scripts/terrain.gd

@@ -129,6 +129,20 @@ func modify_rect(
 			)
 	update_texture()
 
+func get_stat(
+	pos: Vector2,
+	stat : Stats
+) :
+	var pixel_pos = map_to_pixel(pos)
+	var levels = color_to_levels(image.get_pixelv(pixel_pos))
+	match stat:
+		Stats.WATER:
+			return levels.x
+		Stats.FERTILITY:
+			return levels.y
+		Stats.TEMPERATURE:
+			return levels.z
+
 func setup_texture( 
 	levels : Vector3i
 ):