Method validateEyePoint

Engine/source/afx/afxCamera.cpp:228–269

void afxCamera::validateEyePoint(F32 pos, MatrixF *mat)
{
   if (pos != 0) {
      // Use the eye transform to orient the camera
      Point3F dir;
      mat->getColumn(1, &dir);
      pos *= mMaxOrbitDist - mMinOrbitDist;
      // Use the camera node's pos.
      Point3F startPos;
      Point3F endPos;
      mObjToWorld.getColumn(3,&startPos);

      // Make sure we don't extend the camera into anything solid
      if(mOrbitObject)
         mOrbitObject->disableCollision();
      disableCollision();
      RayInfo collision;

      SceneContainer* pContainer = isServerObject() ? &gServerContainer : &gClientContainer;
      if (!pContainer->castRay(startPos, startPos - dir * 2.5 * pos, afxCameraData::sCameraCollisionMask, &collision))
         endPos = startPos - dir * pos;
      else
      {
         float dot = mDot(dir, collision.normal);
         if(dot > 0.01)
         {
            float colDist = mDot(startPos - collision.point, dir) - (1 / dot) * CameraRadius;
            if(colDist > pos)
               colDist = pos;
            if(colDist < 0)
               colDist = 0;
            endPos = startPos - dir * colDist;
         }
         else
            endPos = startPos - dir * pos;
      }
      mat->setColumn(3,endPos);
      enableCollision();
      if(mOrbitObject)
         mOrbitObject->enableCollision();
   }
}

//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~//~~~~~~~~~~~~~~~~~~~~~//