overte/libraries/physics/src/ContactInfo.h

//
//  ContactEvent.h
//  libraries/physics/src
//
//  Created by Andrew Meadows 2015.01.20
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

#ifndef hifi_ContactEvent_h
#define hifi_ContactEvent_h

#include <btBulletDynamicsCommon.h>
#include <glm/glm.hpp>

#include "RegisteredMetaTypes.h"


class ContactInfo {
public:
    void update(uint32_t currentStep, const btManifoldPoint& p);
    ContactEventType computeType(uint32_t thisStep);

    const btVector3& getPositionWorldOnB() const { return positionWorldOnB; }
    btVector3 getPositionWorldOnA() const { return positionWorldOnB + normalWorldOnB * distance; }

    bool readyForContinue(uint32_t thisStep);

    btVector3 positionWorldOnB;
    btVector3 normalWorldOnB;
    btScalar distance;
private:
    uint32_t _lastStep { 0 };
    uint32_t _continueExpiry { 0 };
};


#endif // hifi_ContactEvent_h