How can I get a gridmap's cell under my cursor using a raycast?

foumfo

Is it possible for me to get which cell (in a gridmap) I'm pointing at with my mouse cursor using a Raycast? I've found a guide in the docs but it's about using the camera not the mouse

onkel-elke

Hello,

why don't you use TileMap.get_cell?

var mousePositionV = get_global_mouse_position()
var mousePositionM = TileMap.world_to_map(mousePositionV)
var tileUnderMouse = TheMap.get_cellv(mousePositionM)

TwistedTwigleg

You can also use the intersect_point function if you want to just see what physics object(s) are directly underneath a position:

var mouse_position = get_global_mouse_position()
var direct_space_state = get_world_2d().direct_space_state
var results = direct_space_state.intersect_point(mouse_position)
if (results.empty() == false):
	for result in results:
		if result["collider"] is TileMap:
			# get the tile using code like in Onkel Elke's example:
			var map_pos = result["collider"].world_to_map(mouse_position)
			var tile_under_mouse = result["collider"].get_cellv(map_pos)