141 lines
4.8 KiB
C++
141 lines
4.8 KiB
C++
#ifndef HGL_GRAPH_SCENE_NODE_INCLUDE
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#define HGL_GRAPH_SCENE_NODE_INCLUDE
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#include<hgl/type/ObjectList.h>
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#include<hgl/graph/SceneOrient.h>
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#include<hgl/graph/AABB.h>
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namespace hgl
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{
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namespace graph
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{
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/**
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* 场景节点数据类<br>
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* 从场景坐标变换(SceneOrient)类继承，
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* 每个场景节点中可能包括一个可渲染数据实例，或是完全不包含(用于坐标变换的父节点，或是灯光/摄像机之类)。
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*/
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class SceneNode:public SceneOrient ///场景节点类
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{
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protected:
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AABB BoundingBox; ///<绑定盒
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AABB LocalBoundingBox; ///<本地坐标绑定盒
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//AABB WorldBoundingBox; ///<世界坐标绑定盒
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Renderable *render_obj=nullptr; ///<可渲染实例
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public:
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ObjectList<SceneNode> SubNode; ///<子节点
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public:
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SceneNode()=default;
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SceneNode(SceneNode *);
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SceneNode( Renderable *ri ) {render_obj=ri;}
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SceneNode(const Matrix4f &mat ):SceneOrient(mat) {}
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SceneNode(const Matrix4f &mat, Renderable *ri ):SceneOrient(mat) {render_obj=ri;}
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virtual ~SceneNode()=default;
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void Clear()
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{
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SubNode.Clear();
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render_obj=nullptr;
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}
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const bool IsEmpty()const
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{
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if(render_obj)return(false);
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if(SubNode.GetCount())return(false);
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return(true);
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}
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Renderable *GetRenderable(){return render_obj;}
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void SetRenderable(Renderable *);
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SceneNode *AddSubNode(SceneNode *sn)
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{
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if(!sn)
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return(nullptr);
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SubNode.Add(sn);
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return sn;
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}
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SceneNode *CreateSubNode()
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{
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SceneNode *sn=new SceneNode();
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SubNode.Add(sn);
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return sn;
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}
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SceneNode *CreateSubNode(Renderable *ri)
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{
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if(!ri)
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return(nullptr);
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SceneNode *sn=new SceneNode(ri);
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SubNode.Add(sn);
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return sn;
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}
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SceneNode *CreateSubNode(const Matrix4f &mat)
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{
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SceneNode *sn=new SceneNode(mat);
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SubNode.Add(sn);
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return sn;
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}
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SceneNode *CreateSubNode(const Matrix4f &mat,Renderable *ri)
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{
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if(!ri)
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return(nullptr);
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SceneNode *sn=new SceneNode(mat,ri);
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SubNode.Add(sn);
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return sn;
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}
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SceneNode *CreateSubNode(SceneNode *node)
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{
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if(!node)
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return(nullptr);
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SceneNode *sn=new SceneNode(node);
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SubNode.Add(sn);
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return node;
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}
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SceneNode *CreateSubNode(const Matrix4f &mat,SceneNode *node)
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{
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if(!node)
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return(nullptr);
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SceneNode *sn=new SceneNode(mat);
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sn->CreateSubNode(node);
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SubNode.Add(sn);
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return sn;
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}
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public: //坐标相关方法
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virtual void SetBoundingBox (const AABB &bb){BoundingBox=bb;} ///<设置绑定盒
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virtual void RefreshMatrix () override; ///<刷新世界变换
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virtual void RefreshBoundingBox (); ///<刷新绑定盒
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virtual const AABB & GetBoundingBox ()const{return BoundingBox;} ///<取得绑定盒
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virtual const AABB & GetLocalBoundingBox ()const{return LocalBoundingBox;} ///<取得本地坐标绑定盒
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// virtual const AABB & GetWorldBoundingBox ()const{return WorldBoundingBox;} ///<取得世界坐标绑定盒
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};//class SceneNode
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}//namespace graph
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}//namespace hgl
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#endif//HGL_GRAPH_SCENE_NODE_INCLUDE
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