text: /*
   * Copyright (C) 2013 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
   * in compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License
   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
   * or implied. See the License for the specific language governing permissions and limitations under
   * the License.
   */
  #ifndef SCENE_H
  #define SCENE_H
  
  #include <graphics/Matrix.h>
  #include <graphics/Mesh.h>
  #include <graphics/Program.h>
  #include <graphics/ProgramNode.h>
  
  #include <utils/Vector.h>
  
  class Scene {
  public:
      Scene(int width, int height);
      virtual ~Scene() {};
      virtual bool setUpContext();
      virtual bool setUpTextures() = 0;
      virtual bool setUpMeshes() = 0;
      virtual bool tearDown();
      virtual bool update(int frame);
      virtual bool draw() = 0;
      void drawSceneGraph(int index);
  protected:
      virtual bool setUpPrograms() = 0;
      virtual Matrix* setUpModelMatrix() = 0;
      virtual Matrix* setUpViewMatrix() = 0;
      virtual Matrix* setUpProjectionMatrix(float width, float height) = 0;
      virtual bool updateSceneGraphs(int frame) = 0;
      int mWidth;
      int mHeight;
      android::Vector<Mesh*> mMeshes;
      android::Vector<GLuint> mTextureIds;
      android::Vector<ProgramNode*> mSceneGraphs;
  private:
      Matrix* mModelMatrix;
      Matrix* mViewMatrix;
      Matrix* mProjectionMatrix;
  };
  #endif
  