extends StaticBody3D

enum TileType {
	Empty,
	Plain,
	Forest
}

@export var tile_type: TileType = TileType.Empty;
var free_sides = {
	"north": false,
	"south": false,
	"west": false,
	"east": false,
}

func update_tile():
	var children = find_children("*tile");
	for child in children:
		if TileType.keys()[tile_type] == child.name.split("_")[0]:
			child.visible = true
		else:
			child.visible = false

func _ready():
	update_tile()

func _physics_process(delta):
	var space_state = get_world_3d().direct_space_state
	
	var query_north = PhysicsRayQueryParameters3D.create(self.position + Vector3(0, 2.5, 0), self.position + Vector3(10, 2.5, 0))
	var query_south = PhysicsRayQueryParameters3D.create(self.position + Vector3(0, 2.5, 0), self.position + Vector3(-12, 2.5, 0))
	var query_west = PhysicsRayQueryParameters3D.create(self.position + Vector3(0, 2.5, 0), self.position + Vector3(0, 2.5, -10))
	var query_east = PhysicsRayQueryParameters3D.create(self.position + Vector3(0, 2.5, 0), self.position + Vector3(0, 2.5, 10))
	
	var result_north = space_state.intersect_ray(query_north)
	var result_south = space_state.intersect_ray(query_south)
	var result_west = space_state.intersect_ray(query_west)
	var result_east = space_state.intersect_ray(query_east)
	free_sides = {
		"north": result_north == {},
		"south": result_south == {},
		"west": result_west == {},
		"east": result_east == {}
	}
	
func get_free_dirs_around():
	var free_tiles_around = []
	for side in free_sides.keys():
		if free_sides[side]:
			free_tiles_around.push_back(side)
	return free_tiles_around
	

func save():
	if tile_type == TileType.Empty: return {}
	return {
		"node": "tile",
		"pos_x": position.x,
		"pos_y": position.y,
		"pos_z": position.z,
		"tile_type": tile_type
	}