#ifndef GAMEENTITY_H
#define GAMEENTITY_H

#include "constants.h"
#include "pixmapitem.h"
#include <QtGlobal>

class Actor;

/**
 * Base class for entities that interact in the game
 */
class GameEntity
  : public PixmapItem
{
public:
  GameEntity(Color::Color color = Color::none, QGraphicsItem *parent = 0);
  GameEntity(QGraphicsItem *parent);
  virtual ~GameEntity()
  {};

  /* color of entity */
  virtual Color::Color color()
  {
    return m_color;
  }

  /* returns whether the actor may enter this field */
  virtual bool checkEnter(Actor *)
  {
    return true;
  }

  /* performs action when this actor acctually enters
   * returns whether this entity survives the entering
   */
  virtual bool enter(Actor *)
  {
    /* default to no action/survive */
    return true;
  }

  /* check whether this entity is regarded as eaten
   * (and can be removed in the next tick)
   */
  virtual bool eaten()
  {
    return m_eaten;
  }

  /* called when an instance acctually dies for creating effects */
  virtual void onDie(Actor *)
  {};

protected:
  bool m_eaten;
  Color::Color m_color;
};

#endif // GAMEENTITY_H