private MapLocation validateOutOfBounds(MapLocation headLocation, MapLocation requestedLocation)
{
var difference = headLocation - requestedLocation;
var newLocation = requestedLocation; // No need to clone because we do not change individual members
if (_utilities.OutOfBounds(newLocation))
{
var incrementor = difference.Normalized().Abs();
// If the requested location is going in the negative direction then we need our incrementor
// to also be pointing in the negative direction.
if (difference > 0)
{
incrementor *= -1;
}
// Decrement movement position until it is no longer out of bounds
do
{
newLocation = newLocation - incrementor;
}while (_utilities.OutOfBounds(newLocation));
// If we're back at our head location then we need to set the position to be out of bounds (by one) (collision)
if (newLocation.SameAs(headLocation))
{
newLocation += incrementor;
}
}
return(newLocation);
}
public void ValidateCollision(Cycle cycle)
{
var cycleLocation = _utilities.ToMapLocation(cycle.MovementController);
// Check if we're out of bounds
if (_utilities.OutOfBounds(cycleLocation))
{
cycle.HandleCollisionWith(null);
return;
}
long occupiedById = _map[cycleLocation];
if (occupiedById != 0 && occupiedById != -cycle.ID) // Check if we're colliding with something other than our head location
{
Cycle occupiedBy = _map.GetCycle(Math.Abs(occupiedById));
cycle.HandleCollisionWith(occupiedBy);
}
}
