// SquirmCellSlot.cpp

#include "stdafx.h"
#include "SquirmCellSlot.h"

#include "SquirmError.h"

void SquirmCellSlot::addOccupant(SquirmCell *occ)
{
	// mustn't already be in this slot (slow check)
#ifdef _DEBUG
	if(this->occupants.Find(occ)!=NULL)
    {
		SquirmError("SquirmCellSlot::addOccupant : already present!");
        return;
    }
#endif

	this->occupants.AddTail(occ);
}

void SquirmCellSlot::removeOccupant(SquirmCell* occ)
{
	// must already be in this slot
	POSITION where = this->occupants.Find(occ);

    // this check isn't at all slow but should never be needed
#ifdef _DEBUG
	if(where==NULL)
    {
		SquirmError("SquirmCellSlot::removeOccupant : not present!");
        return;
    }
#endif

	this->occupants.RemoveAt(where);
}