修改底层渲染为OpenGL

source/EngineFrame/Actor/Actor.cpp

@@ -1,6 +1,8 @@
 #include "Actor.h"
 #include "EngineFrame/Scene/Scene.h"
+#include "EngineCore/Game.h"
 #include "EngineFrame/Component/RenderBase.h"
+#include "EngineFrame/Render/RenderManager.h"
 #include <algorithm>
 
 Actor::Actor()
@@ -16,6 +18,22 @@ void Actor::Init()
     addTag(Tag::UPDATE);
 }
 
+void Actor::Render()
+{
+    // 如果有裁切视口
+    if (this->_CropViewportFlag)
+    {
+        RenderManager *renderer = Game::GetInstance().GetRenderer();
+        renderer->SetClipRect(&this->_CropViewport);
+        BaseNode::Render();
+        renderer->CloseClipRect();
+    }
+    else
+    {
+        BaseNode::Render();
+    }
+}
+
 void Actor::AddComponent(RefPtr<Component> Component)
 {
     BaseNode::AddChild(Component);
@@ -25,3 +43,21 @@ void Actor::RemoveComponent(RefPtr<Component> Component)
 {
     BaseNode::RemoveChild(Component);
 }
+
+void Actor::SetCropViewport(SDL_Rect CropViewport)
+{
+    if (CropViewport.x == 0 && CropViewport.y == 0 && CropViewport.w == 0 && CropViewport.h == 0)
+    {
+        this->_CropViewportFlag = false;
+    }
+    else
+    {
+        this->_CropViewportFlag = true;
+        this->_CropViewport = CropViewport;
+    }
+}
+
+SDL_Rect Actor::GetCropViewport()
+{
+    return this->_CropViewport;
+}

source/EngineFrame/Actor/Actor.h

@@ -10,14 +10,23 @@ class Scene;
  */
 class Actor : public BaseNode
 {
+private:
+    //裁切视口Flag
+    bool _CropViewportFlag = false;
+    //裁切视口
+    SDL_Rect _CropViewport = {0, 0, 0, 0};
 
 public:
     Actor();
 
 public:
     void Init() override;
+    void Render() override;
     void AddComponent(RefPtr<Component> Component);
     void RemoveComponent(RefPtr<Component> Component);
-    // void AddChild(RefPtr<Actor> child);
-    // void RemoveChild(RefPtr<Actor> child);
+
+    // 设置裁切视口(放在Actor里 他与他的子对象都会被裁切)
+    void SetCropViewport(SDL_Rect CropViewport);
+    // 获取裁切视口
+    SDL_Rect GetCropViewport();
 };