getAboveLeft method
Returns the tile above left
@return tile above left
Implementation
Tile getAboveLeft() {
int y = tileY - 1;
int x = tileX - 1;
if (y < 0) {
y = getMaxTileNumber(this.zoomLevel);
}
if (x < 0) {
x = getMaxTileNumber(this.zoomLevel);
}
return new Tile(x, y, this.zoomLevel, this.indoorLevel);
}