Node.h

/*
 * Copyright (c) 2018, Stefan Osswald
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * * Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * 
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * 
 * * Neither the name of the copyright holder nor the names of its
 *   contributors may be used to endorse or promote products derived from
 *   this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */ 

#ifndef INCLUDE_ARTICULATION_NODE_H_
#define INCLUDE_ARTICULATION_NODE_H_

#include <gpu_coverage/Programs.h>
#include <assimp/scene.h>
#include <glm/detail/type_mat4x4.hpp>
#include <vector>
#include <iostream>

namespace gpu_coverage {

// Forward declarations
struct LocationsCommonRender;
class Mesh;
class AbstractCamera;
class Light;
class Channel;

class Node {
public:
    typedef std::vector<Node *> Children;
    typedef std::vector<Mesh *> Meshes;
    typedef std::vector<AbstractCamera *> Cameras;
    typedef std::vector<Light *> Lights;
    typedef std::vector<Channel *> Channels;

    Node(const aiNode * const node, const aiScene * scene, const std::vector<Mesh*>& meshes, Node * const parent =
            NULL);
    Node(const std::string& name, Node * const parent);
    virtual ~Node();

    void setFrame();

    void render(const std::vector<glm::mat4>& view, const LocationsMVP * const locationsMVP,
            const LocationsMaterial * const locationsMaterial, const bool hasTesselationShader) const;

    void toDot(FILE *dot);

    inline const Children& getChildren() const {
        return children;
    }

    inline const Meshes& getMeshes() const {
        return meshes;
    }

    inline size_t getId() const {
        return id;
    }

    inline const std::string& getName() const {
        return name;
    }

    inline const Node * getParent() const {
        return parent;
    }

    inline const glm::mat4& getLocalTransform() const {
        return localTransform;
    }

    inline const glm::mat4& getWorldTransform() const {
        return worldTransform;
    }

    inline void setLocalTransform(const glm::mat4& localTransform) {
        this->localTransform = localTransform;
        updateWorldTransform();
    }

    void addCamera(AbstractCamera * const camera);

    void addLight(Light * const light);

    void addAnimationChannel(Channel * const channel);

    inline bool isVisible() const {
        return visible;
    }

    inline void setVisible(bool visible) {
        this->visible = visible;
    }

    inline const Cameras& getCameras() const {
        return cameras;
    }

    inline const Lights& getLights() const {
        return lights;
    }

    inline const Channels& getChannels() const {
        return channels;
    }

protected:
    const size_t id;             
    const std::string name;      

    Children children;                        
    std::vector<bool> allocatedChild;         
    Meshes meshes;                            
    Cameras cameras;                          
    Lights lights;                            
    Channels channels;                        
    Node * const parent;                      
    glm::mat4 worldTransform;                 
    glm::mat4 localTransform;                 
    bool visible;                             

    void setFrameRecursive(bool needsUpdate);

    void updateWorldTransform();

    friend class Scene;
};

} /* namespace gpu_coverage */

#endif /* INCLUDE_ARTICULATION_NODE_H_ */