world_to_grid does not convert negative positions to the grid cell correctly

[blubbers122]

Love the tutorial!

One thing I noticed:
current implementation of Grid.world_to_grid doesn't round down towards negative infinity

example: if world_pos is (-15, -15), (-15, 15), (15, -15), or (15, 15), we get a grid cell of (0,0) incorrectly for 3 of these

current

static func world_to_grid(world_pos: Vector2i) -> Vector2i:
	var grid_pos: Vector2i = world_pos / tile_size
	return grid_pos

correction

static func world_to_grid(world_pos: Vector2i) -> Vector2i:
	var grid_pos: Vector2i = (Vector2(world_pos) / Vector2(tile_size)).floor()
	return grid_pos

[SelinaDev]

Thank you for mentioning that! I hadn't noticed. I have to consider whether or not I will fix this for this version of the tutorial, as the way tiles are stored in the MahData class only works in the first quadrant anyway.