if isValidTile(position: newPosition) {
if getTile(position: newPosition) <= 3 {
currentLocation = newPosition
if i == 0 && j == 0 {
setTile(position: currentLocation, toValue: 5)
} else {
setTile(position: currentLocation, toValue: 3)
}
}
}
If newPosition is invalid and i, j == 0, Level End Tile is missed.