SpacyShooter/Physics/Entity.h

//
// Created by jovian on 18/07/17.
//

#ifndef TINYSHOOTER_ENTITY_H
#define TINYSHOOTER_ENTITY_H

#include <box2d/box2d.h>
#include <vector>
#include "../Graphics/Visual.h"

enum Faction {WALL, BULLET, ALLY, FOE};

/* class Entity :
 * Store interactive data of a game object.
 */
class Entity {
    /// Methods :
public :
    Entity(Faction faction, unsigned int imgId, b2World* physics);
    virtual ~Entity();

    virtual void update() = 0; // Update physical and game entity
    virtual Visual* makeVisual(); // Generate graphical description

    bool isExist() const;
    bool isTouching() const;
    b2Vec2 getPos() const;
    Faction getFaction() const;

    void setExistence(bool exist);

protected:
    void establishPhysicalLink(); // Put entity data in body's user-data

    /// Variables :
protected:
    Faction m_faction; // Allows identification in TinyWorld
    bool m_exist; // Entity is destroyed if set to false

    b2World* m_physics; // Link to physic world
    b2Body* m_body; // Link to physic world

    unsigned int m_imgId; // Current picture id
};


#endif //TINYSHOOTER_ENTITY_H