class_name TileMapLayerAccess
extends Node

var tilemap: TileMapLayer = null
var sid: int              = 0


func setup() -> void:
    pass


func get_cells_by_type(atlas_coords: Vector2i) -> Array[Vector2i]:
    return tilemap.get_used_cells_by_id(sid, atlas_coords)


func get_cells_by_custom_data(field_name: String, custom_data: Variant) -> Array[Vector2i]:
    var tiles_with_custom_data: Array = []
    for coords in tilemap.get_used_cells():
        var tile_data: TileData = tilemap.get_cell_tile_data(coords)
        if tile_data.get_custom_data(field_name) == custom_data:
            tiles_with_custom_data.append(coords)
    return tiles_with_custom_data


func get_custom_data(coords: Vector2i, field_name: String) -> Variant:
    var tile_data: TileData = tilemap.get_cell_tile_data(coords)
    return tile_data.get_custom_data(field_name)


func get_cells(positions: Array[Vector2i]) -> Array[TileData]:
    var tiles: Array = []
    for coords in positions:
        tiles.append(tilemap.get_cell_tile_data(coords))
    return tiles


func get_cell(position: Vector2i) -> TileData:
    return tilemap.get_cell_tile_data(position)


func set_cell(position: Vector2i, atlas_coords: Vector2i) -> void:
    tilemap.set_cell(position, sid, atlas_coords)


func clear_cell(position: Vector2i) -> void:
    tilemap.set_cell(position, -1)


func clear_cells() -> void:
    for coords in tilemap.get_used_cells():
        tilemap.set_cell(coords, -1)


func local_to_cell(global_position: Vector2) -> Vector2i:
    return tilemap.local_to_map(global_position)


func cell_to_local(cell_position: Vector2i) -> Vector2:
    return tilemap.map_to_local(cell_position)