#ifndef _RULES_H
#define _RULES_H

#include <tqobject.h>

#include "vector.h"
#include "point.h"
#include "rules.h"

// Temple for rules engine plugins
class KueRulesEngine : public TQObject {
  TQ_OBJECT
  public:
	KueRulesEngine(TQObject *parent = 0, const char *name = 0) : TQObject(parent, name) {}
	virtual ~KueRulesEngine() {}

	virtual void start() = 0;

  signals:
	// Emitting gameOver notifies the user of the result, stops the physics
	// engine, and schedules us for deletion
	void gameOver(const TQString &result);
	void showMessage(const TQString &text);

  protected slots:
  	// Called by physics engine when a billiard is sunk
	virtual void billiardSunk(unsigned int ball, unsigned int pocket);
	// Called by physics engine when a billiard is struck (by the cue ball or another billiard)
	virtual void billiardHit(unsigned int ball1, unsigned int ball2);
	// Called by the physics engine when all billiards have stopped moving
	virtual void motionStopped();
};

#endif