Method animate

Engine/source/T3D/lightAnimData.cpp:194–233

template<U32 COUNT>
bool LightAnimData::AnimValue<COUNT>::animate(F32 time, F32 *output, bool multiply)
{
   F32 scaledTime, lerpFactor, valueRange, keyFrameLerp;
   U32 posFrom, posTo;
   S32 keyFrameFrom, keyFrameTo;
   F32 initialValue = *output;
   if (!multiply)
      initialValue = 1;

   bool wasAnimated = false;

   for ( U32 i=0; i < COUNT; i++ )
   {
      if ( mIsZero( timeScale[i] ) )
         continue;

      wasAnimated = true;

      scaledTime = mFmod( time, period[i] ) * timeScale[i];

	   posFrom = mFloor( scaledTime );
	   posTo = mCeil( scaledTime );

      keyFrameFrom = dToupper( keys[i][posFrom] ) - 65;
      keyFrameTo = dToupper( keys[i][posTo] ) - 65;
	   valueRange = ( value2[i] - value1[i] ) / 25.0f;

      if ( !smooth[i] )
         output[i] = (value1[i] + (keyFrameFrom * valueRange)) * initialValue;
      else
      {
         lerpFactor = scaledTime - posFrom;
   	   keyFrameLerp = ( keyFrameTo - keyFrameFrom ) * lerpFactor;

         output[i] = (value1[i] + ((keyFrameFrom + keyFrameLerp) * valueRange)) * initialValue;
      }
   }

   return wasAnimated;
}

template<U32 COUNT>
void LightAnimData::AnimValue<COUNT>::write( BitStream *stream ) const