LuckyScript封装库sample：改写ogre例子

LuckyScript封装库sample：改写ogre例子

   续 http://www.cppblog.com/zzxhang/archive/2009/04/18/80269.html，为了展示这个封装库的能力，我把ogre的一些核心类跟接口注册给脚本，用luckyScript改写了OGRE的sample中cameraTrack跟terrain的例子，实现了使用luckyScript来控制OGRE的启动和更新，这个demo会作为LuckyScript的一个sample发布。

terrain例子的LuckyScript脚本代码

var  g_Root;
var  g_SceneManager;
var  g_Camera;
var  g_ViewPort;
var  g_Window;
var  g_RaySceneQuery;
var  g_UpdateRay;
var  g_NegativeUnitY;
var  g_FrameListener;
var  g_Str1;
var  g_Str2;
var  g_CameraPos;

func updateScene( var  timeDiv)
{
    g_CameraPos = g_Camera.getPosition();
         
      g_UpdateRay.setOrigin(g_CameraPos);
    g_UpdateRay.setDirection(g_NegativeUnitY);
    
    g_RaySceneQuery.setRay(g_UpdateRay);
 
    var y = getRayIntersectionHeight(g_RaySceneQuery); 
      
    g_CameraPos.y = y;
   
    g_Camera.setPosition(g_CameraPos);
 
}

func createRenderWindow()
{
    g_Str1 = "Ogre Render Window";
    g_Str2 = "";
     
    g_Window = g_Root.initialise(1,g_Str1,g_Str2);
    
}

func choseSceneManager()
{
    g_Str1 = "TerrainSceneManager";
    g_Str2 = "Terrain";
    g_SceneManager = g_Root.createSceneManagerByStrType(g_Str1,g_Str2);
}

func createCamera()
{
      g_Str1 = "PlayerCam";
    g_Camera = g_SceneManager.createCamera(g_Str1);
        
    var cameraPos = new Vector3(0.0,0.0,500.0);
    var lookAtPos = new Vector3(0.0,0.0,-300.0);
        
    g_Camera.setPosition(cameraPos);
      g_Camera.lookAt(lookAtPos);
      g_Camera.setNearClipDistance(5.0);
          
      g_ViewPort = g_Window.addViewport(g_Camera,0,0.0,0.0,1.0,1.0);
      var colorVal = new ColourValue(0.0,0.0,0.0,1.0);
      g_ViewPort.setBackgroundColour(colorVal);
        
    var aspect = g_ViewPort.getActualWidth() / g_ViewPort.getActualHeight();
        
      g_Camera.setAspectRatio(aspect);
}

func initResourceGroup()
{
    var resourceGroupManager = getResourceGroupManager();
      resourceGroupManager.initialiseAllResourceGroups();
}

func createScene()
{
      var waterPlane = new Plane();

    // Set ambient light
    var ambientColor = new ColourValue(0.5, 0.5, 0.5,1.0);
    g_SceneManager.setAmbientLight(ambientColor);
     
    // Create a light
    g_Str1 = "MainLight";
    var l = g_SceneManager.createLight(g_Str1);

    l.setPosition(20,80,50);

    var fadeColour = new ColourValue(0.93, 0.86, 0.76,1.0);
    setSceneFog(g_SceneManager,3,fadeColour,0.001,500,1000);
    var viewPort = g_Window.getViewport(0);
    viewPort.setBackgroundColour(fadeColour);

    g_Str1 = "terrain.cfg";
    g_SceneManager.setWorldGeometry(g_Str1);

    g_Camera.setFarClipDistance(0);

    // Define the required skyplane
    var plane = new Plane();
    
    // 5000 world units from the camera
    plane.d = 5000;
      
     
    var unitDown = new Vector3(0,-1,0);
     
    // Above the camera, facing down
    plane.normal = unitDown;
       
    var q = new Quaternion(-0.3486, 0.0122, 0.9365, 0.0329);
     
    var newPos = new Vector3(707,2500,528);
    g_Camera.setPosition(newPos);
     
    g_Camera.setOrientation(q);
    
    var cameraPos = g_Camera.getPosition();
    var ray = new Ray(cameraPos,unitDown); 
    g_RaySceneQuery = g_SceneManager.createRayQuery(ray,-1);
}

func createFrameListener()
{
    g_FrameListener = new FrameListener(g_Window,g_Camera);
    g_Root.addFrameListener(g_FrameListener);    
}

func Main()
{
    g_Root = new Root("plugins_d.cfg","ogre.cfg", "Ogre.log");
 
    setupResources();   
    
    if(g_Root.showConfigDialog())
    {   
          g_Str1 = new String("");
        g_Str2 = new String("");
        var zero = new Vector3(0,0,0);   
        g_NegativeUnitY = new Vector3(0,-1,0);
        g_UpdateRay = new Ray(zero,g_NegativeUnitY); 
                
          createRenderWindow();
          
          choseSceneManager();
          
          createCamera();
          
          initResourceGroup();
          
          createScene();
          
          createFrameListener();

        updateScene(0);
        
        g_Root.startRendering();
       
    }
}

运行结果：