private bool AttemptMoveCardinalDirection(CardinalDirection direction)
{
var deltaLoc = GridLocation.MakeFromCardinalDirection(direction);
// should this be the focus manager or the selection manager
// or some other manager all together?
var active = selectionManager.GetActive();
// if there's nothing active, we might as well
// guard return, because there's nothing left to be done.
if (active == null)
{
Activate(creationManager.TileGrid.GetRandomNonNullGridItem());
return(true);
}
// now let's translate and see if we can find where we can move.
var tileLocation = GridLocation.Add(active.GetGridPositionedComponent().GetLocation(), deltaLoc);
while (creationManager.TileGrid.IsLocationValid(tileLocation))
{
var possibleNextFocusTile = creationManager.TileGrid[tileLocation];
if (possibleNextFocusTile != null)
{
Activate(possibleNextFocusTile);
return(true);
}
tileLocation = GridLocation.Add(tileLocation, deltaLoc);
}
return(false);
}