getParent method
@return the parent tile of this tile or null, if the zoom level of this tile is 0.
Implementation
Tile? getParent() {
if (this.zoomLevel == 0) {
return null;
}
return Tile((this.tileX / 2).round(), (this.tileY / 2).round(),
(this.zoomLevel - 1), this.indoorLevel);
}