visiting camera

cocos/2d/CCNode.cpp

@@ -1242,7 +1242,7 @@ void Node::visit(Renderer* renderer, const Mat4 &parentTransform, uint32_t paren
     director->pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW);
     director->loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_MODELVIEW, _modelViewTransform);
     
-    auto camera = director->getCurrentCamera();
+    auto camera = Camera::getVisitingCamera();
     bool visibleByCamera = camera ? (unsigned short)camera->getCameraFlag() & _cameraMask : true;
 
     int i = 0;

cocos/2d/CCScene.cpp

@@ -185,12 +185,6 @@ void Scene::addChildToPhysicsWorld(Node* child)
     }
 }
 
-Camera* Scene::getCameraByIndex(int index) const
-{
-    CCASSERT(index < _cameras.size(), "invalid index");
-    return _cameras[index];
-}
-
 #endif
 
 NS_CC_END

cocos/2d/CCScene.h

@@ -65,10 +65,8 @@ public:
     using Node::addChild;
     virtual std::string getDescription() const override;
     
-    /** get camera count */
+    /** get all cameras */
-    ssize_t getCameraCount() const { return _cameras.size(); }
+    const std::vector<Camera*>& getCameras() const { return _cameras; }
-    /** get camera */
-    Camera* getCameraByIndex(int index) const;
     
 CC_CONSTRUCTOR_ACCESS:
     Scene();
@@ -82,6 +80,7 @@ protected:
     friend class ProtectedNode;
     friend class SpriteBatchNode;
     friend class Camera;
+    friend class Director;
     
     std::vector<Camera*> _cameras; //weak ref to Camera
     

cocos/base/CCCamera.cpp

@@ -29,6 +29,8 @@
 
 NS_CC_BEGIN
 
+Camera* Camera::_visitingCamera = nullptr;
+
 Camera* Camera::create()
 {
     Camera* camera = nullptr;
@@ -224,17 +226,9 @@ void Camera::onEnter()
 {
     if (_scene == nullptr)
     {
-        auto parent = getParent();
+        auto scene = getScene();
-        while (parent)
-        {
-            auto scene = dynamic_cast<Scene*>(parent);
         if (scene)
-            {
             setScene(scene);
-                break;
-            }
-            parent = parent->getParent();
-        }
     }
     Node::onEnter();
 }

cocos/base/CCCamera.h

@@ -132,6 +132,8 @@ public:
     virtual void onEnter() override;
     virtual void onExit() override;
     
+    static const Camera* getVisitingCamera() { return _visitingCamera; }
+
 CC_CONSTRUCTOR_ACCESS:
     Camera();
     ~Camera();
@@ -157,6 +159,10 @@ protected:
     float _farPlane;
     mutable bool  _viewProjectionDirty;
     unsigned short _cameraFlag; // camera flag
+    
+    static Camera* _visitingCamera;
+    
+    friend class Director;
 };
 
 NS_CC_END

cocos/base/CCDirector.cpp

@@ -158,7 +158,6 @@ bool Director::init(void)
     initMatrixStack();
 
     _renderer = new Renderer;
-    _currentCamera = nullptr;
 
 #if (CC_TARGET_PLATFORM != CC_PLATFORM_WINRT)
     _console = new Console;
@@ -289,18 +288,19 @@ void Director::drawScene()
     if (_runningScene)
     {
         Camera* defaultCamera = nullptr;
+        const auto& cameras = _runningScene->_cameras;
         //draw with camera
-        for (ssize_t i = 0; i < _runningScene->getCameraCount(); i++)
+        for (size_t i = 0; i < cameras.size(); i++)
         {
-            _currentCamera = _runningScene->getCameraByIndex((int)i);
+            Camera::_visitingCamera = cameras[i];
-            if (_currentCamera->getCameraFlag() == CameraFlag::DEFAULT)
+            if (Camera::_visitingCamera->getCameraFlag() == CameraFlag::DEFAULT)
             {
-                defaultCamera = _currentCamera;
+                defaultCamera = Camera::_visitingCamera;
                 continue;
             }
             
             pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
-            loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION, _currentCamera->getViewProjectionMatrix());
+            loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION, Camera::_visitingCamera->getViewProjectionMatrix());
             
             //visit the scene
             _runningScene->visit(_renderer, Mat4::IDENTITY, false);
@@ -311,9 +311,9 @@ void Director::drawScene()
         //draw with default camera
         if (defaultCamera)
         {
-            _currentCamera = defaultCamera;
+            Camera::_visitingCamera = defaultCamera;
             pushMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
-            loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION, _currentCamera->getViewProjectionMatrix());
+            loadMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION, Camera::_visitingCamera->getViewProjectionMatrix());
             
             //visit the scene
             _runningScene->visit(_renderer, Mat4::IDENTITY, false);
@@ -321,7 +321,7 @@ void Director::drawScene()
             
             popMatrix(MATRIX_STACK_TYPE::MATRIX_STACK_PROJECTION);
         }
-        _currentCamera = nullptr;
+        Camera::_visitingCamera = nullptr;
         
         _eventDispatcher->dispatchEvent(_eventAfterVisit);
     }

cocos/base/CCDirector.h

@@ -407,8 +407,6 @@ public:
      */
     float getFrameRate() const { return _frameRate; }
 
-    Camera* getCurrentCamera() const { return _currentCamera; }
-
 protected:
     void purgeDirector();
     bool _purgeDirectorInNextLoop; // this flag will be set to true in end()
@@ -509,9 +507,6 @@ protected:
     /* Renderer for the Director */
     Renderer *_renderer;
 
-    /* current camera, only vailid during drawScene */
-    Camera*   _currentCamera;
-
 #if  (CC_TARGET_PLATFORM != CC_PLATFORM_WINRT)
     /* Console for the director */
     Console *_console;