PhysicsConstants.h

#ifndef TT_INCLUDE__PHYSICSCONSTANTS_H
#define TT_INCLUDE__PHYSICSCONSTANTS_H
 
 
 
#include "Vector3.h"
 
 
 
class ChunkSaveClass;
class ChunkLoadClass;
 
 
#ifndef TTLE_EXPORTS
extern float ContactFrictionCoefficient[3][32];
extern float ContactDragCoefficient[3][32];
#else
typedef float ContactFrictionCoefficientType[3][32]; 
extern REF_DECL(ContactFrictionCoefficientType,ContactFrictionCoefficient); 
typedef float ContactDragCoefficientType[3][32];
extern REF_DECL(ContactDragCoefficientType,ContactDragCoefficient);
#endif
 
 
class PhysicsConstants
{
 
public:
 
    static float AngularDamping;
    static float DefaultContactFriction;
    static float DefaultContactDrag;
#ifndef W3DVIEWER
    static REF_DECL(Vector3, GravityAcceleration);
#endif
    static float LinearDamping;
    static float RestingContactVelocity;
    static float MinFrictionVelocity;
    static float MinFrictionVelocity2;
 
    static void Init();
    
    static void Set_Contact_Friction_Coefficient(int physicsType, int surfaceType, float value)
    {
        if ((uint)physicsType < 3 && (uint)surfaceType < 32)
            ContactFrictionCoefficient[physicsType][surfaceType] = value;
    }
    
    static float Get_Contact_Friction_Coefficient(int physicsType, int surfaceType)
    {
        if ((uint)physicsType < 3 && (uint)surfaceType < 32)
            return ContactFrictionCoefficient[physicsType][surfaceType];
        else
            return ContactFrictionCoefficient[0][0];
    }
 
    static void Set_Contact_Drag_Coefficient(int physicsType, int surfaceType, float value)
    {
        if ((uint)physicsType < 3 && (uint)surfaceType < 32)
            ContactDragCoefficient[physicsType][surfaceType] = value;
    }
 
    static float Get_Contact_Drag_Coefficient(int physicsType, int surfaceType)
    {
        if ((uint)physicsType < 3 && (uint)surfaceType < 32)
            return ContactDragCoefficient[physicsType][surfaceType];
        else
            return ContactDragCoefficient[0][0];
    }
 
    static void Save(ChunkSaveClass&);
    static void Load(ChunkLoadClass&);
 
};
 
 
 
#endif