Changeset 4161 in orxonox.OLD for orxonox/branches/md2_loader/src/lib/graphics

Timestamp:

May 11, 2005, 9:44:17 AM (20 years ago)

Author:

patrick

Message:

orxonox/branchs/md2_model: startet working on animated md2 models. this version doesn't compile

File:

• orxonox/branches/md2_loader/src/lib/graphics/importer/md2Model.cc (modified) (1 diff)

orxonox/branches/md2_loader/src/lib/graphics/importer/md2Model.cc

@@ -46 +46 @@
 {
   // delete what has to be deleted here
+}
+
+
+MD2Model::animateModel()
+{
+        if( unlikely(pModel->pObject.size() <= 0)) return;
+        /* get current animation from the list */
+        tAnimationInfo *pAnim = &(pModel->pAnimations[pModel->currentAnim]);
+
+        int nextFrame = (pModel->currentFrame + 1) % pAnim->endFrame;
+        if( unlikely(nextFrame == 0)) 
+                nextFrame =  pAnim->startFrame;
+
+        t3DObject *pFrame = &pModel->pObject[pModel->currentFrame];
+        t3DObject *pNextFrame = &pModel->pObject[nextFrame];
+
+        /* we have stored the texture and face information only in the first frame */
+        t3DObject *pFirstFrame = &pModel->pObject[0];
+
+        /* get the current time as a value in the domain [0..1] :)) */
+        float t = ReturnCurrentTime(pModel, nextFrame);
+
+        glBegin(g_ViewMode);
+                for(int j = 0; j < pFrame->numOfFaces; j++)
+                {
+                        for(int whichVertex = 0; whichVertex < 3; whichVertex++)
+                        {
+                                int vertIndex = pFirstFrame->pFaces[j].vertIndex[whichVertex];
+                                int texIndex  = pFirstFrame->pFaces[j].coordIndex[whichVertex];
+                                                
+                                if( likely(pFirstFrame->pTexVerts != NULL)) 
+                                {
+                                        glTexCoord2f(pFirstFrame->pTexVerts[ texIndex ].x, 
+                                                                 pFirstFrame->pTexVerts[ texIndex ].y);
+                                }
+                        
+                                /* here comes the interpolation part */
+                                CVector3 vPoint1 = pFrame->pVerts[vertIndex];
+                                CVector3 vPoint2 = pNextFrame->pVerts[vertIndex];
+                                glVertex3f(vPoint1.x + t * (vPoint2.x - vPoint1.x), 
+                                                   vPoint1.y + t * (vPoint2.y - vPoint1.y),
+                                                   vPoint1.z + t * (vPoint2.z - vPoint1.z));
+                        }
+                }
+        glEnd();
+}
+
+
+float MD2Model::returnCurrentTime(t3DModel *pModel, int nextFrame)
+{
+        static float elapsedTime   = 0.0f;
+        static float lastTime     = 0.0f;
+
+        /* this is the same like tick(float time) */
+        //float time = GetTickCount();
+        //elapsedTime = time - lastTime;
+        
+        /* stretch the time with animation speed (and make seconds out of it) */
+        float t = elapsedTime / (1000.0f / kAnimationSpeed);
+        
+        if (elapsedTime >= (1000.0f / kAnimationSpeed) )
+        {
+                pModel->currentFrame = nextFrame;
+                lastTime = time;
+        }
+        return t;
 }