struct AABB
{
	Point mCorners[2];

	AABB(const float width, const float height, const float depth);
};


class Node
{
public:

	void addChild(Node &child);
	void drawRecursive();
	virtual void draw() = 0;
	virtual const AABB& aabb() const = 0;

	Matrix& matrix();

protected:
	virtual ~Node() {}

	std::vector < Node* > mChildren;
};



class Fish: public Node
{
public:
	void draw();
	const AABB& aabb() const;

	Vector& swimDirection();
};





class Animation
{
public:
	void addFish(Fish &fish);

	void step()
	{
		for (std::vector < Fish* > ::iterator it = mFishes.begin(); it != mFishes.end(); ++it) {
			Fish *fish = (*it);
			// .... hier regeln anwenden ....
		}
	}
protected:
	std::vector < Fish* > mFishes;
};