Changeset 1200 for GTP/trunk/App/Demos

Timestamp:

08/11/06 17:34:12 (18 years ago)

Author:

szydlowski

Message:

demo record and playback working

Location:

GTP/trunk/App/Demos/Vis/KdTreeDemo/OGRE

Files:

• include/TestKdTree.h (modified) (1 diff)
• include/TestKdTreeAppListener.h (modified) (1 diff)
• src/TestKdTree.cpp (modified) (2 diffs)
• src/TestKdTreeAppListener.cpp (modified) (9 diffs)

GTP/trunk/App/Demos/Vis/KdTreeDemo/OGRE/include/TestKdTree.h

@@ -74 +74 @@
         bool loadSceneIV(const String &filename, SceneNode *root, const int index);
 private:
+        void createMaterials(void);
         std::string cat(std::string name, int x, int z)
         {

GTP/trunk/App/Demos/Vis/KdTreeDemo/OGRE/include/TestKdTreeAppListener.h

@@ -131 +131 @@
 
         FrameList mFrameList;
+        FrameList::iterator mCurrFrame;
+        Real mTimeRemaining;
 
         AppState mAppState;
+
+        Overlay * mDemoOverlay;
+        OverlayElement * mDemoStatus;
 
         void toggleRecord();
         void togglePlayback();
+//      void resetPlayback();
+
         void saveFrameInfo(Real elapsedTime);
 
+        void setDemoOverlay();
+
+        void saveFramesBinary(const String& filename);
+        void loadFramesBinary(const String& filename);
 public:
         void loadFrames(const String& filename);

GTP/trunk/App/Demos/Vis/KdTreeDemo/OGRE/src/TestKdTree.cpp

@@ -101 +101 @@
 void KdTreeApp::createScene(void)
 {
+        createMaterials();
+
         Entity *deaths;
         SceneNode *nodes;
@@ -370 +372 @@
 }
 
+void KdTreeApp::createMaterials()
+{
+        MaterialPtr mat;
+        Technique * tech;
+        Pass * pass;
+        TextureUnitState * tex;
+
+        // create play button
+        mat = MaterialManager::getSingleton().create("KdTree/DemoPlayButton", "General");
+        mat->setLightingEnabled(false);
+        tech = mat->getTechnique(0);
+        tech->setSceneBlending(SBT_TRANSPARENT_ALPHA);
+        tech->setDepthCheckEnabled(false);
+        pass = tech->getPass(0);
+        tex = pass->createTextureUnitState();
+        tex->setTextureName("DemoPlayButton.png");
+
+        // create record button
+        mat = MaterialManager::getSingleton().create("KdTree/DemoRecordButton", "General");
+        mat->setLightingEnabled(false);
+        tech = mat->getTechnique(0);
+        tech->setSceneBlending(SBT_TRANSPARENT_ALPHA);
+        tech->setDepthCheckEnabled(false);
+        pass = tech->getPass(0);
+        tex = pass->createTextureUnitState();
+        tex->setTextureName("DemoRecordButton.png");
+}
+
 
 //-----------------------------------------------------------------------

GTP/trunk/App/Demos/Vis/KdTreeDemo/OGRE/src/TestKdTreeAppListener.cpp

@@ -2 +2 @@
 #include <cstdlib>
 
+#include <OgrePanelOverlayElement.h>
 #include "TestKdTreeAppListener.h"
 
@@ -129 +130 @@
         MaterialManager::getSingleton().setDefaultAnisotropy(mAniso);
 
+        mDemoOverlay = 0;
+        mDemoStatus = 0;
+
         initKdTreeOverlay();
         initStatsOverlay();
@@ -134 +138 @@
         showDebugOverlay(true);
 
-        loadFrames("demo-in.txt");
+        setDemoOverlay();
+
+        //loadFrames("demo-in.txt");
+        loadFramesBinary("demo-in.bin");
 }
 //-----------------------------------------------------------------------
@@ -150 +157 @@
         // save demo
         if (!mFrameList.empty())
-                saveFrames("demo-out.txt");
+        {
+                //saveFrames("demo-out.txt");
+                saveFramesBinary("demo-out.bin");
+        }
 }
 //-----------------------------------------------------------------------
@@ -942 +952 @@
         }
 
-        if ( !mUseBufferedInputMouse || !mUseBufferedInputKeys)
-        {
-                // one of the input modes is immediate, so update the movement vector
-
-                moveCamera();
-
-        }
-
+        // demo playback - replace position with stored one
+        if (mAppState == AS_PLAYBACK)
+        {
+                // update time
+                mTimeRemaining -= evt.timeSinceLastFrame;
+
+                static FrameList::iterator lastFrame;
+                if (mCurrFrame == mFrameList.begin())
+                        lastFrame = mCurrFrame;
+
+                // advance to next stored frame
+                while (mTimeRemaining <= 0.0 && mCurrFrame != mFrameList.end())
+                {
+                        lastFrame = mCurrFrame;
+                        ++ mCurrFrame;
+                        mTimeRemaining += mCurrFrame->mElapsedTime;
+                }
+
+                // when reached last frame, reset and stop playback
+                if (mCurrFrame == mFrameList.end())
+                {
+                        togglePlayback();
+                }
+                // interpolate position & orientation and modify move vectors
+                else
+                {
+                        
+                        // interpolation factor
+                        Real factor = 1.0 - mTimeRemaining / mCurrFrame->mElapsedTime;
+
+                        // interpolate position and orientation
+                        Vector3 pos = lastFrame->mPosition + 
+                                factor * (mCurrFrame->mPosition - lastFrame->mPosition);
+
+                        Quaternion or = Quaternion::Slerp(factor, lastFrame->mOrientation,
+                                mCurrFrame->mOrientation);
+
+                        // update camera
+                        mCamNode->setPosition(pos);
+                        mCamNode->setOrientation(or);
+
+                        // update viz camera
+                        mTopCam->moveRelative(mVizCamTransVect);
+                        if (mTopCamFollow)
+                        {
+                                Vector3 toppos = mTopCam->getPosition();
+                                Vector3 campos = mCamNode->getPosition();
+                                mTopCam->setPosition(Vector3::ZERO);
+                                mTopCam->setOrientation(Quaternion::IDENTITY);
+                                mTopCam->setPosition(campos.x, toppos.y, campos.z);
+                                mTopCam->pitch(Radian(-Math::HALF_PI));
+                        }
+
+                }
+        }
+        else
+        {
+                if ( !mUseBufferedInputMouse || !mUseBufferedInputKeys)
+                {
+                        // one of the input modes is immediate, so update the movement vector
+
+                        moveCamera();
+
+                }
+        }
 
         //saveFrameInfo(evt.timeSinceLastFrame);
@@ -1024 +1091 @@
 void KdTreeAppListener::toggleRecord()
 {
-        // TODO: overlay
+        // start recording
         if (mAppState == AS_NORMAL)
         {
+                // change state
                 mAppState = AS_RECORD;
-        }
+
+                // clear old recording
+                mFrameList.clear();
+        }
+        // stop recording
         else if (mAppState == AS_RECORD)
         {
+                // change state
                 mAppState = AS_NORMAL;
-        }
+
+        }
+        // update display
+        setDemoOverlay();
 }
 
@@ -1038 +1114 @@
 void KdTreeAppListener::togglePlayback()
 {
-        // TODO: overlay
-        if (mAppState == AS_NORMAL)
-        {
+        static Vector3 pos;
+        static Quaternion or;
+
+        // start playback
+        if (mAppState == AS_NORMAL && !mFrameList.empty())
+        {
+                // change state
                 mAppState = AS_PLAYBACK;
-        }
+
+                // save old position
+                pos = mCamNode->getPosition();
+                or = mCamNode->getOrientation();
+
+                // reset demo
+                mCurrFrame = mFrameList.begin();
+                mTimeRemaining = mCurrFrame->mElapsedTime;
+        }
+        // stop playback
         else if (mAppState == AS_PLAYBACK)
         {
+                // change state
                 mAppState = AS_NORMAL;
-        }
-}
+
+                // restore old position
+                mCamNode->setPosition(pos);
+                mCamNode->setOrientation(or);
+        }
+
+        // update display
+        setDemoOverlay();
+}
+
+//-----------------------------------------------------------------------------
+//void KdTreeAppListener::resetPlayback()
+//{
+//      if (!mFrameList.empty())
+//      {
+//              mCurrFrame = mFrameList.begin();
+//              mTimeRemaining = mCurrFrame->mElapsedTime;
+//      }
+//}
 
 //-----------------------------------------------------------------------------
@@ -1083 +1190 @@
 
 //-----------------------------------------------------------------------------
+void KdTreeAppListener::saveFramesBinary(const String& filename)
+{
+        std::ofstream dest(filename.c_str(), std::ios_base::out | std::ios_base::binary);
+
+        if (!dest)
+        {
+                LogManager::getSingleton().logMessage("Failed to open file for saving demo: " + filename);
+                return;
+        }
+
+        FrameList::iterator it = mFrameList.begin();
+        FrameList::iterator end = mFrameList.end();
+
+        size_t size = sizeof(Real);
+
+        // dump values
+        while (it != end)
+        {
+                dest.write((char *)&it->mPosition.x, size);
+                dest.write((char *)&it->mPosition.y, size);
+                dest.write((char *)&it->mPosition.z, size);
+                dest.write((char *)&it->mOrientation.w, size);
+                dest.write((char *)&it->mOrientation.x, size);
+                dest.write((char *)&it->mOrientation.y, size);
+                dest.write((char *)&it->mOrientation.z, size);
+                dest.write((char *)&it->mElapsedTime, size);
+                ++ it;
+        }
+
+        dest.close();
+}
+
+//-----------------------------------------------------------------------------
 void KdTreeAppListener::loadFrames(const String& filename)
 {
@@ -1121 +1261 @@
         src.close();
 }
+
+//-----------------------------------------------------------------------------
+void KdTreeAppListener::loadFramesBinary(const String& filename)
+{
+        // open file
+        std::ifstream src(filename.c_str(), std::ios_base::out | std::ios_base::binary);
+        if (!src)
+        {
+                LogManager::getSingleton().logMessage("Failed to open file for reading demo: " + filename);
+                return;
+        }
+
+        // clear the list
+        mFrameList.clear();
+
+        size_t size = sizeof(Real);
+
+        Vector3 pos;
+        Quaternion or;
+        Real time;
+
+        while (!src.eof())
+        {
+                src.read((char *)&pos.x, size);
+                src.read((char *)&pos.y, size);
+                src.read((char *)&pos.z, size);
+                src.read((char *)&or.w, size);
+                src.read((char *)&or.x, size);
+                src.read((char *)&or.y, size);
+                src.read((char *)&or.z, size);
+                src.read((char *)&time, size);
+
+                mFrameList.push_back(FrameInfo(pos, or, time));
+        }
+
+        // HACK pop last frame, was doubled while reading
+        mFrameList.pop_back();
+
+        src.close();
+}
+//-----------------------------------------------------------------------------
+void KdTreeAppListener::setDemoOverlay()
+{
+        // init overlay if not present
+        if (!mDemoOverlay || !mDemoStatus)
+        {
+                OGRE_DELETE(mDemoOverlay);
+                OGRE_DELETE(mDemoStatus);
+
+                mDemoStatus = OverlayManager::getSingleton().createOverlayElement("Panel", "KdTree/DemoStatus");
+                mDemoStatus->setMetricsMode(GMM_PIXELS);
+                mDemoStatus->setHorizontalAlignment(GHA_CENTER);
+                mDemoStatus->setVerticalAlignment(GVA_TOP);
+                mDemoStatus->setTop(5);
+                mDemoStatus->setLeft(-16);
+                mDemoStatus->setDimensions(32, 32);
+
+                mDemoOverlay = OverlayManager::getSingleton().create("KdTree/DemoOverlay");
+                mDemoOverlay->setZOrder(500);
+                mDemoOverlay->add2D(static_cast<PanelOverlayElement *>(mDemoStatus));
+        }
+
+        switch(mAppState)
+        {
+        case AS_NORMAL:
+                mDemoOverlay->hide();
+                break;
+        case AS_PLAYBACK:
+                mDemoStatus->setMaterialName("KdTree/DemoPlayButton");
+                mDemoOverlay->show();
+                break;
+        case AS_RECORD:
+                mDemoStatus->setMaterialName("KdTree/DemoRecordButton");
+                mDemoOverlay->show();
+                break;
+        default:
+            break;
+        }
+
+}