character.h

Go to the documentation of this file.

/*
    This code is licensed under GNU General Public License (GPL) v2.
    It has been written by Luc BRUANT aka fullmetalcoder <fullmetalcoder@hotmail.fr>
*/

#ifndef _CHARACTER_H_
#define _CHARACTER_H_

#include <btScalar.h>
#include <btVector3.h>
#include <btCollisionAlgorithm.h>

class World;
class Object;

namespace irr
{
    struct SEvent;
}

class btConvexShape;
class btCollisionWorld;
class btCollisionObject;
class btCollisionDispatcher;
class btOverlappingPairCache;

class Character
{
    public:
        enum Direction
        {
            Left        = 1,
            Right       = 2,
            Forward     = 4,
            Backward    = 8,
            
            Jump        = 16,
            
            DirectionCount
        };
        
        Character(Object *object, World *world);
        virtual ~Character();
        
        bool onGround() const;
        
        virtual void update(btScalar dt);
        virtual void move(int direction);
        
        void setFallSpeed (btScalar fallSpeed);
        void setJumpSpeed (btScalar jumpSpeed);
        void setMaxJumpHeight (btScalar maxJumpHeight);
        
        bool canJump () const;
        void jump ();
        
    protected:
        World *m_world;
        Object *m_object;
        
        bool m_onGround;
        int m_directions;
        btScalar m_halfHeight;
        btConvexShape* m_shape;
        btCollisionObject* m_collisionObject;
        btOverlappingPairCache* m_pairCache;
        btCollisionDispatcher* m_dispatcher;
    
        btScalar m_fallSpeed;
        btScalar m_jumpSpeed;
        btScalar m_maxJumpHeight;
    
        btScalar m_turnAngle;
        btScalar m_walkVelocity;
    
        btScalar m_height;
        btScalar m_width;
        btScalar m_stepHeight;
        
        btVector3 m_currentPosition;
        btVector3 m_targetPosition;
        
        bool m_touchingContact;
        btVector3 m_touchingNormal;
        
        bool fall(const btCollisionWorld *w, btScalar dt, const btVector3& down);
        bool recoverFromPenetration (const btCollisionWorld* collisionWorld);
        void stepUp (const btCollisionWorld* collisionWorld);
        void updateTargetPositionBasedOnCollision (const btVector3& hit_normal,
                                                    btScalar tangentMag = btScalar(0.0),
                                                    btScalar normalMag = btScalar(1.0));
        
        void stepForwardAndStrafe (const btCollisionWorld* collisionWorld, const btVector3& walkMove);
        void stepDown (const btCollisionWorld* collisionWorld, btScalar dt);
};

#endif

---