// Removes MObject from this map if it is in there, returning success.
public bool Remove(MObject mObject)
{
if (!_layers[(int)mObject.Layer].Remove(mObject))
{
return(false);
}
mObject.Moved -= OnMObjectMoved;
mObject._onMapChanged(null);
return(true);
}
// Adds given MObject at the given position (Position property of MObject will be
// automatically updated, and entity is removed from its current map (if any), if and only if
// the Add was successful). Returns false if it can't add.
public bool Add(MObject mObject, Coord position)
{
if (Collides(mObject, position))
{
return(false);
}
if (!_layers[(int)mObject.Layer].Add(mObject, position))
{
return(false);
}
mObject.CurrentMap?.Remove(mObject);
mObject.Position = position; // Performs no collision detecttion because its CurrentMap is guaranteed to be null because of above line
mObject.Moved += OnMObjectMoved;
mObject._onMapChanged(this);
return(true);
}