extends TileMap
class_name CustomTileMap

var astar : AStarGrid2D = AStarGrid2D.new()
@onready var fog_overlay : ColorRect = $FogOverlay

@onready var tilemap_size : Vector2i = get_used_rect().end - get_used_rect().position
@onready var map_rect : Rect2i = Rect2i(Vector2i.ZERO, tilemap_size)

func _ready() -> void:

	var tile_size : Vector2i  = get_tileset().tile_size
	var map_pixel_size : Vector2i = tilemap_size * tile_size
	fog_overlay.size = map_pixel_size


	setup_pathing()
	pass

func setup_pathing() -> void:
	# Setup the AStarGrid2D for pathfinding
	var tile_size : Vector2i = get_tileset().tile_size 

	Log.pr("Tilemap size: " + str(tilemap_size))

	astar.region = map_rect 
	astar.cell_size = tile_size 
	astar.default_compute_heuristic = AStarGrid2D.HEURISTIC_MANHATTAN
	astar.default_estimate_heuristic = AStarGrid2D.HEURISTIC_MANHATTAN
	astar.diagonal_mode = AStarGrid2D.DIAGONAL_MODE_NEVER
	astar.update()

	update_passable()
	
	pass

func update_passable() -> void:
	# Update the AStarGrid2D with the new passable tiles
	for i in tilemap_size.x:
		for j in tilemap_size.y:
			var coords : Vector2i = Vector2i(i, j)
			var tile_data : TileData = get_cell_tile_data(0, coords)
			if tile_data and tile_data.get_custom_data('navtype') == 'wall':
				astar.set_point_solid(coords)

	pass

func is_point_walkable(check_position : Vector2i) -> bool:
	var map_position : Vector2i = local_to_map(check_position)
	if map_rect.has_point(map_position) and not astar.is_point_solid(map_position):
		return true
	
	return false