YiSceneNodeUtility.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_SCENE_NODE_UTILITY_H_
#define _YI_SCENE_NODE_UTILITY_H_

#include "scenetree/YiSceneNode.h"

#include <glm/fwd.hpp>

class CYIColor;

class CYIAbstractCameraSceneNode;

class CYISceneNodeUtility
{
public:
    struct RenderTargetInfo
    {
        RenderTargetInfo() :
            pParent(nullptr)
        {
        }

        std::shared_ptr<CYIRenderTarget> pRenderTarget;
        glm::mat4 cameraMatrix;
        const CYISceneNode *pParent;
    };

    static std::list<std::shared_ptr<CYISceneNodeProxy>> GetProxyList(const std::list<CYISceneNode *> &sceneNodeList);

    static glm::vec3 LocalToScreenSpace(const CYISceneNode *pNode, const glm::vec3 &localSpaceCoordinate, bool bLogErrors = true);

    static glm::vec3 LocalToRelativeSpace(CYISceneNode *pLocalNode, CYISceneNode *pRelativeNode, const glm::vec3 &localSpaceCoordinate);

    static glm::vec3 LocalZeroToRelativeSpace(CYISceneNode *pLocalNode, CYISceneNode *pRelativeNode);

    static CYIAABB LocalSizeToRelativeSpace(const CYISceneNode *pLocalNode, const CYISceneNode *pRelativeNode);

    static glm::vec3 ScreenToLocalSpace(const CYISceneNode *pNode, const glm::vec2 &screenSpaceCoordinate);
    
    static std::unique_ptr<CYISceneNode> CreateSolid(CYISceneManager *pSceneManager, const CYIColor &color, float fWidth, float fHeight);

    static glm::vec3 LocalToScreenSpace(const CYISceneNode *pNode, const glm::vec3 &localSpaceCoordinate, std::shared_ptr<CYIRenderTarget> pRenderTarget, const glm::mat4 &cameraMatrix, bool bLogErrors = true);

    static CYIAABB WorldToScreenSpace(const CYISceneNode *pNode, const RenderTargetInfo *pRenderTargetInfo = nullptr);

    static CYIAABB WorldToScreenSpace(const CYISceneNode *pNode, const CYIAABB &worldSpaceBox, const RenderTargetInfo *pRenderTargetInfo = nullptr);

    static std::pair<std::shared_ptr<CYIRenderTarget>, glm::mat4> GetRenderTargetAndCameraMatrix(const CYISceneNode *pNode);

    static RenderTargetInfo GetRenderTargetInfo(const CYISceneNode *pNode);

    static RenderTargetInfo GetRenderTargetInfoForChildrenOf(const CYISceneNode *pParent);

    static std::shared_ptr<CYIRenderTarget> GetRenderTarget(const CYISceneNode *pNode);

private:
    CYISceneNodeUtility();
};

#endif // _YI_SCENE_NODE_UTILITY_H_