RotationConstraint.h

//
//  RotationConstraint.h
//
//  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_RotationConstraint_h
#define hifi_RotationConstraint_h
 
#include <glm/glm.hpp>
#include <glm/gtc/quaternion.hpp>
 
class RotationConstraint {
public:
    RotationConstraint() : _referenceRotation() {}
    virtual ~RotationConstraint() {}
 
    virtual void setReferenceRotation(const glm::quat& rotation) { _referenceRotation = rotation; }
 
    const glm::quat& getReferenceRotation() const { return _referenceRotation; }
 
    virtual bool apply(glm::quat& rotation) const = 0;
 
    virtual bool isLowerSpine() const { return false; }
 
    virtual void dynamicallyAdjustLimits(const glm::quat& rotation) {}
 
    virtual void clearHistory() {};
 
    virtual glm::quat computeCenterRotation() const = 0;
 
protected:
    glm::quat _referenceRotation = glm::quat();
};
 
#endif // hifi_RotationConstraint_h