Changeset 34 for trunk/VUT/OcclusionCullingSceneManager/TestCulling/TestCullingApplication.cpp

Timestamp:

03/30/05 17:54:55 (20 years ago)

Author:

mattausch

Message:

 

File:

• trunk/VUT/OcclusionCullingSceneManager/TestCulling/TestCullingApplication.cpp (modified) (6 diffs)

trunk/VUT/OcclusionCullingSceneManager/TestCulling/TestCullingApplication.cpp

@@ -20 +20 @@
 #include "windows.h"
 
+RaySceneQuery* raySceneQuery = 0;
+
 /***********************************************/
 /* TestCullingApplication implementation       */
 /***********************************************/
-
-
+TestCullingApplication::~TestCullingApplication()
+{
+        delete raySceneQuery;
+}
+//-----------------------------------------------------------------------
+void TestCullingApplication::createCamera( void )
+{
+        // Create the camera
+        mCamera = mSceneMgr->createCamera("PlayerCam");
+
+        // Position it at 500 in Z direction
+        mCamera->setPosition(Vector3(128,25,128));
+
+        // Look back along -Z
+    mCamera->lookAt(Vector3(0,0,-300));
+    mCamera->setNearClipDistance( 1 );
+    mCamera->setFarClipDistance( 1000 );
+}
 //-----------------------------------------------------------------------
 void TestCullingApplication::createScene(void)
 {
+        Plane waterPlane;
+        // Set ambient light
+        mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
+        
+        // Create a light
+        Light* l = mSceneMgr->createLight("MainLight");
+        // Accept default settings: point light, white diffuse, just set position
+        // NB I could attach the light to a SceneNode if I wanted it to move automatically with
+        //  other objects, but I don't
+        l->setPosition(20,80,50);
+
+        // Fog
+        // NB it's VERY important to set this before calling setWorldGeometry 
+        // because the vertex program picked will be different
+        ColourValue fadeColour(0.93, 0.86, 0.76);
+        mSceneMgr->setFog( FOG_LINEAR, fadeColour, .001, 500, 1000);
+        mWindow->getViewport(0)->setBackgroundColour(fadeColour);
+
+        std::string terrain_cfg("terrain.cfg");
+#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
+        terrain_cfg = mResourcePath + terrain_cfg;
+#endif
+        mSceneMgr -> setWorldGeometry( terrain_cfg );
+        // Infinite far plane?
+        if (mRoot->getRenderSystem()->getCapabilities()->hasCapability(RSC_INFINITE_FAR_PLANE))
+        {
+                mCamera->setFarClipDistance(0);
+        }
+
+        // Define the required skyplane
+        Plane plane;
+        // 5000 world units from the camera
+        plane.d = 5000;
+        // Above the camera, facing down
+        plane.normal = -Vector3::UNIT_Y;
+
+        // Set a nice viewpoint
+        mCamera->setPosition(707,2500,528);
+        mCamera->setOrientation(Quaternion(-0.3486, 0.0122, 0.9365, 0.0329));
+
+        raySceneQuery = mSceneMgr->createRayQuery(
+        Ray(mCamera->getPosition(), Vector3::NEGATIVE_UNIT_Y));
+
      // Create a skybox
-     mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");
-         mShip = mSceneMgr->createEntity("razor", "razor.mesh");
-         mShipNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
-         mShipNode->attachObject(mShip);
-
-         mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5));
+  //   mSceneMgr->setSkyBox(true, "Examples/SpaceSkyBox");
 
          // CEGUI setup
-     mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, ST_GENERIC);
+         setupGui();
+}
+//-----------------------------------------------------------------------
+void TestCullingApplication::setupGui( void )
+{
+         mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, ST_EXTERIOR_CLOSE);
      mGUISystem = new CEGUI::System(mGUIRenderer);
 
@@ -57 +118 @@
 void TestCullingApplication::createFrameListener(void)
 {
-        mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr, mGUIRenderer, mShipNode);
+        mFrameListener= new MouseQueryListener(mWindow, mCamera, mSceneMgr, mGUIRenderer);
         mFrameListener->showDebugOverlay(true);
         mRoot->addFrameListener(mFrameListener);
@@ -73 +134 @@
 
 //-----------------------------------------------------------------------
-MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam, SceneManager *sceneManager, CEGUI::Renderer *renderer,
-                                           SceneNode* shipNode)
-        : ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer), mShipNode(shipNode)//,  mShutdownRequested(false)
+MouseQueryListener::MouseQueryListener(RenderWindow* win, Camera* cam, SceneManager *sceneManager, CEGUI::Renderer *renderer)
+        : ExampleFrameListener(win, cam, false, true), mGUIRenderer(renderer), 
+                mShutdownRequested(false)
 {
 
         // Setup default variables
-        mCurrentObject = NULL;
+//      mCurrentObject = NULL;
         mLMouseDown = false;
         mRMouseDown = false;
@@ -144 +205 @@
                 CEGUI::MouseCursor::getSingleton().show( );
         mLMouseDown = false;
-    } // if
+    }
     // Right mouse button up
     else if (e->getButtonID() & InputEvent::BUTTON1_MASK)
@@ -150 +211 @@
         CEGUI::MouseCursor::getSingleton().show( );
         mRMouseDown = false;
-    } // else if
-} // mouseReleased
+    }
+} 
 //-----------------------------------------------------------------------
 void MouseQueryListener::mouseDragged (MouseEvent *e)
  {
-     // If we are dragging the left mouse button.
-     if ( mLMouseDown )
-     {
-                  mShipNode->translate(-e->getRelX() * 200, -e->getRelY() * 200, 0.0);
-     } // if
-
-    // If we are dragging the right mouse button.
-    else if ( mRMouseDown )
-    {
-        mCamera->yaw( -e->getRelX() * mRotateSpeed );
-        mCamera->pitch( -e->getRelY() * mRotateSpeed );
-    } // else if
-} // mouseDragged
+         /*
+         // If we are dragging the left mouse button.    
+         if ( mLMouseDown )
+         {
+                mShipNode->translate(-e->getRelX() * 200, -e->getRelY() * 200, 0.0);
+     }
+         */
+         
+         // If we are dragging the right mouse button.
+         if ( mRMouseDown )
+         {
+                 mCamera->yaw( -e->getRelX() * mRotateSpeed );
+                 mCamera->pitch( -e->getRelY() * mRotateSpeed );
+         }
+}
+//-----------------------------------------------------------------------
+bool MouseQueryListener::frameStarted(const FrameEvent &evt)
+{
+        // clamp to terrain
+        static Ray updateRay;
+        updateRay.setOrigin(mCamera->getPosition());
+        updateRay.setDirection(Vector3::NEGATIVE_UNIT_Y);
+        raySceneQuery->setRay(updateRay);
+        RaySceneQueryResult& qryResult = raySceneQuery->execute();
+        RaySceneQueryResult::iterator i = qryResult.begin();
+         
+        if (i != qryResult.end() && i->worldFragment)
+        {
+                SceneQuery::WorldFragment* wf = i->worldFragment;
+                mCamera->setPosition(mCamera->getPosition().x, 
+                        i->worldFragment->singleIntersection.y + 10, 
+                        mCamera->getPosition().z);
+        }
+         
+        return ExampleFrameListener::frameStarted(evt);
+}
 //-----------------------------------------------------------------------
 bool MouseQueryListener::frameEnded(const FrameEvent& evt)
@@ -252 +336 @@
     TestCullingApplication app;
 
-        try {
+        try 
+        {
         app.go();
-    } catch( Ogre::Exception& e ) {
+    } 
+        catch( Ogre::Exception& e ) 
+        {
         MessageBox( NULL, e.getFullDescription().c_str(), "An exception has occured!", MB_OK | MB_ICONERROR | MB_TASKMODAL);
     }