void RedisplaySpot(Spot spot)
{
// Clear the information if needed
var actualIndex = map.LocationForXY(spot.X, spot.Y);
if (spritesForLocation.ContainsKey (actualIndex)) {
this.RemoveChildren (new SKNode[] { spritesForLocation[actualIndex] });
spritesForLocation [actualIndex] = null;
}
var newSprite = GetSpriteForCell (map [spot.X, spot.Y]);
AddChild (newSprite);
spritesForLocation [actualIndex] = newSprite;
}
void MakeExplosionAtPoint(Spot s)
{
ExplosionNode explode = new ExplosionNode (spritesForLocation [map.LocationForXY (s.X, s.Y)]);
explode.Position = GetCellPosition (s.X, s.Y);
AddChild (explode);
}