getChilds method
Returns the childs of this tile. The first two items are the upper row from left to right, the next two items are the lower row.
Implementation
List<Tile> getChilds() {
int x = tileX * 2;
int y = tileY * 2;
List<Tile> childs = [];
childs.add(Tile(x, y, zoomLevel + 1, indoorLevel));
childs.add(Tile(x + 1, y, zoomLevel + 1, indoorLevel));
childs.add(Tile(x, y + 1, zoomLevel + 1, indoorLevel));
childs.add(Tile(x + 1, y + 1, zoomLevel + 1, indoorLevel));
return childs;
}