1 #include "ExampleApplication.h"
  2 using namespace Ogre;
  3
  4 class ExampleTestFrameListener:public ExampleFrameListener
  5 {
  6 public:
  7     ExampleTestFrameListener(RenderWindow *win,Camera *cam,SceneManager *sceneMgr)
  8         :ExampleFrameListener(win,cam,false,false)//第三个参数指明是否使用
  9         //带缓冲的键盘输入，第四个参数指明是否使用带缓冲的鼠标输入（
 10     {
 11         mMouseDown = false;// 键盘和鼠标状态追踪
 12         mToggle = 0;
 13
 14         mCamNode = cam->getParentSceneNode();
 15         mSceneMgr = sceneMgr;
 16         //设置旋转和移动速度
 17         mRotate = 0.13;
 18         mMove = 250;
 19     }
 20     bool frameStarted(const FrameEvent& evt)
 21     {
 22         mMouse->capture();//俘获鼠标
 23         mKeyboard->capture();//俘获键盘
 24
 25         if (mKeyboard->isKeyDown(OIS::KC_ESCAPE))//按下esc键
 26         {
 27             return false;
 28         }
 29
 30         bool currMouse = mMouse->getMouseState().buttonDown(OIS::MB_Left);//获取鼠标当前的状态
 31         if(currMouse && !mMouseDown)
 32         {
 33             Light *light = mSceneMgr->getLight("light1");//获取灯光指针
 34             light->setVisible(!light->isVisible());//根据上一次的状态改变
 35         }
 36
 37         mMouseDown = currMouse;//更新鼠标状态
 38
 39         mToggle -= evt.timeSinceLastFrame;//减去从上一帧到现在所经历的时间，保证正在渲染时不切换摄像机
 40         if ((mToggle <0.0f) && mKeyboard->isKeyDown(OIS::KC_1))//按下数字键1时选择摄像机1
 41         {
 42             mToggle = 0.5f;
 43             mCamera->getParentSceneNode()->detachObject(mCamera);
 44             mCamNode = mSceneMgr->getSceneNode("CamNode1");
 45             mCamNode->attachObject(mCamera);
 46         }
 47         else if ((mToggle <0.0f) && mKeyboard->isKeyDown(OIS::KC_2))//按下数字键1时选择摄像机1
 48         {
 49             mToggle = 0.5f;
 50             mCamera->getParentSceneNode()->detachObject(mCamera);
 51             mCamNode = mSceneMgr->getSceneNode("CamNode2");
 52             mCamNode->attachObject(mCamera);
 53         }
 54
 55         Vector3 transVector = Vector3::ZERO;//保存平移方位
 56         if (mKeyboard->isKeyDown(OIS::KC_UP) || mKeyboard->isKeyDown(OIS::KC_W))//前
 57         {
 58             transVector.z -= mMove;//z轴负方向移动
 59         }
 60         if (mKeyboard->isKeyDown(OIS::KC_DOWN) || mKeyboard->isKeyDown(OIS::KC_S))//后
 61         {
 62             transVector.z += mMove;//z轴正方向移动
 63         }
 64         if (mKeyboard->isKeyDown(OIS::KC_LEFT) || mKeyboard->isKeyDown(OIS::KC_A))//左
 65         {
 66             transVector.x -= mMove;//x轴负方向移动
 67         }
 68         if (mKeyboard->isKeyDown(OIS::KC_RIGHT) || mKeyboard->isKeyDown(OIS::KC_D))//右
 69         {
 70             transVector.x += mMove;//x轴正方向移动
 71         }
 72         if (mKeyboard->isKeyDown(OIS::KC_PGUP) || mKeyboard->isKeyDown(OIS::KC_Q))//上
 73         {
 74             transVector.y -= mMove;//Y轴负方向移动
 75         }
 76         if (mKeyboard->isKeyDown(OIS::KC_PGDOWN) || mKeyboard->isKeyDown(OIS::KC_E))//下
 77         {
 78             transVector.y += mMove;//Y轴正方向移动
 79         }
 80
 81         //根据从上一帧开始鼠标移动的距离来控制摄像机的俯仰偏斜。
 82         if (mMouse->getMouseState().buttonDown(OIS::MB_Right))
 83         {
 84             mCamNode->yaw(Degree(-mRotate * mMouse->getMouseState().X.rel),Node::TS_WORLD);
 85             mCamNode->pitch(Degree(-mRotate * mMouse->getMouseState().Y.rel),Node::TS_LOCAL);
 86         }
 87         return true;
 88         //return ExampleFrameListener::frameStarted(evt);
 89     }
 90     bool frameEnded(const FrameEvent& evt)
 91     {
 92         return ExampleFrameListener::frameEnded(evt);
 93     }
 94 protected:
 95     bool mMouseDown;// 鼠标左键是否在上一帧被按下
 96     Real mToggle;//直到下一次触发的时间间隔
 97     Real mRotate;//滚动常量
 98     Real mMove;//移动常量
 99     SceneManager *mSceneMgr;//当前的场景管理器
100     SceneNode *mCamNode;//当前的摄像机所绑定的场景节点
101 private:
102 };
103
104
105 class ExampleTestApplication:public ExampleApplication
106 {
107 public:
108     ExampleTestApplication()
109     {
110
111     }
112     ~ExampleTestApplication()
113     {
114
115     }
116
117 protected:
118     void createCamera()
119     {
120         //其他参数选择默认
121         mCamera = mSceneMgr->createCamera("PlayerCam");
122         mCamera->setNearClipDistance(5);
123     }
124     void createScene()
125     {
126         //载入实体
127         mSceneMgr->setAmbientLight(ColourValue(0.25,0.25,0.25));//设置环境色
128         Entity *ent1 = mSceneMgr->createEntity("ninja","ninja.mesh");
129         SceneNode *node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode("ninjaNode");
130         node1->attachObject(ent1);
131
132         //点光源
133         Light *light = mSceneMgr->createLight("light1");
134         light->setType(Light::LT_POINT);//点光源
135         light->setPosition(Vector3(250,150,250));
136         light->setDiffuseColour(ColourValue::White);//漫射光
137         light->setSpecularColour(ColourValue::White);//反射光
138
139         //第一个摄像机节点
140         node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode("CamNode1",Vector3(-400,200,400));
141         node1->yaw(Degree(-45));//绕y轴顺时针旋转45度
142         node1->attachObject(mCamera);
143         //第二个摄像机节点
144         node1 = mSceneMgr->getRootSceneNode()->createChildSceneNode("CamNode2",Vector3(0,200,400));
145     }
146     void createFrameListener()
147     {
148         mFrameListener = new ExampleTestFrameListener(mWindow,mCamera,mSceneMgr);//创建一个帧监听器
149         mRoot->addFrameListener(mFrameListener);//注册到Root类中
150         mFrameListener->showDebugOverlay(true);//在层上显示帧状态
151     }
152 };
153
154 #include "windows.h"
155
156
157
158 INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR strCmdLine, INT )
159
160
161 {
162     ExampleTestApplication app;
163         app.go();
164     return 0;
165 }