ULRE/inc/hgl/graph/SceneNode.h

115 lines
5.1 KiB
C++

#ifndef HGL_GRAPH_SCENE_NODE_INCLUDE
#define HGL_GRAPH_SCENE_NODE_INCLUDE
#include<hgl/type/ObjectList.h>
#include<hgl/type/IDName.h>
#include<hgl/graph/SceneOrient.h>
#include<hgl/graph/AABB.h>
namespace hgl
{
namespace graph
{
using SceneNodeID =uint64;
using SceneNodeName =U16IDName;
/**
* 场景节点数据类<br>
* 从场景坐标变换(SceneOrient)类继承,
* 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)。
*/
class SceneNode:public SceneOrient ///场景节点类
{
SceneNode *Owner; ///<上级节点
SceneNodeID NodeID; ///<节点ID
SceneNodeName NodeName; ///<节点名称
protected:
AABB BoundingBox; ///<绑定盒
AABB LocalBoundingBox; ///<本地坐标绑定盒
//AABB WorldBoundingBox; ///<世界坐标绑定盒
Renderable *render_obj=nullptr; ///<可渲染实例
protected:
ObjectList<SceneNode> ChildNode; ///<子节点
public:
const SceneNodeID & GetNodeID ()const { return NodeID; } ///<取得节点ID
const SceneNodeName & GetNodeName ()const { return NodeName; } ///<取得节点名称
const ObjectList<SceneNode> &GetChildNode()const { return ChildNode; } ///<取得子节点列表
public:
SceneNode()=default;
SceneNode(const SceneNode &)=delete;
SceneNode(const SceneNode *)=delete;
SceneNode(const SceneOrient &so ):SceneOrient(so) {}
SceneNode( Renderable *ri ) {render_obj=ri;}
SceneNode(const Matrix4f &mat ):SceneOrient(mat) {}
SceneNode(const Matrix4f &mat, Renderable *ri ):SceneOrient(mat) {render_obj=ri;}
public:
virtual ~SceneNode()=default;
void Clear() override
{
SceneOrient::Clear();
Owner=nullptr;
BoundingBox.SetZero();
LocalBoundingBox.SetZero();
ChildNode.Clear();
render_obj=nullptr;
}
const bool IsEmpty()const
{
if(render_obj)return(false);
if(ChildNode.GetCount())return(false);
return(true);
}
void SetOwner(SceneNode *sn) {Owner=sn;}
SceneNode * GetOwner() noexcept{return Owner;}
const SceneNode * GetOwner()const noexcept{return Owner;}
void SetRenderable(Renderable *);
Renderable *GetRenderable() noexcept{return render_obj;}
const Renderable *GetRenderable()const noexcept{return render_obj;}
SceneNode *Add(SceneNode *sn)
{
if(!sn)
return(nullptr);
ChildNode.Add(sn);
sn->SetOwner(this);
return sn;
}
public: //坐标相关方法
virtual void SetBoundingBox (const AABB &bb){BoundingBox=bb;} ///<设置绑定盒
virtual void RefreshMatrix () override; ///<刷新世界变换
virtual void RefreshBoundingBox (); ///<刷新绑定盒
virtual const AABB & GetBoundingBox ()const{return BoundingBox;} ///<取得绑定盒
virtual const AABB & GetLocalBoundingBox ()const{return LocalBoundingBox;} ///<取得本地坐标绑定盒
// virtual const AABB & GetWorldBoundingBox ()const{return WorldBoundingBox;} ///<取得世界坐标绑定盒
};//class SceneNode
SceneNode *Duplication(SceneNode *); ///<复制一个场景节点
}//namespace graph
}//namespace hgl
#endif//HGL_GRAPH_SCENE_NODE_INCLUDE