Method createSplit

Engine/source/T3D/fx/lightning.cpp:1255–1293

---------------------------------------------------------------------------- Recursive algo to create bolts that split off from main bolt ----------------------------------------------------------------------------

// Recursive algo to create bolts that split off from main bolt
//----------------------------------------------------------------------------
void LightningBolt::createSplit( const Point3F &startingPoint, const Point3F &endingPoint, U32 depth, F32 splitWidth )
{
   if( depth == 0 )
      return;
     
   F32 chanceToEnd = gRandGen.randF();
   if( chanceToEnd > 0.70f )
      return;

   if(splitWidth < 0.75f )
      splitWidth = 0.75f;

   VectorF diff = endingPoint - startingPoint;
   F32 length = diff.len();
   diff.normalizeSafe();

   LightningBolt newBolt;
   newBolt.startPoint = startingPoint;
   newBolt.endPoint = endingPoint;
   newBolt.width = splitWidth;
   newBolt.numMajorNodes = 3;
   newBolt.maxMajorAngle = 30.0f;
   newBolt.numMinorNodes = 3;
   newBolt.maxMinorAngle = 10.0f;
   newBolt.startRender = true;
   newBolt.generate();

   splitList.pushBack( newBolt );

   VectorF newDir1 = MathUtils::randomDir( diff, 10.0f, 45.0f );
   Point3F newEndPoint1 = endingPoint + newDir1 * gRandGen.randF( 0.5f, 1.5f ) * length;

   VectorF newDir2 = MathUtils::randomDir( diff, 10.0f, 45.0f );
   Point3F newEndPoint2 = endingPoint + newDir2 * gRandGen.randF( 0.5f, 1.5f ) * length;

   createSplit(endingPoint, newEndPoint1, depth - 1, splitWidth * 0.30f );
   createSplit(endingPoint, newEndPoint2, depth - 1, splitWidth * 0.30f );

}

//----------------------------------------------------------------------------
// Start split - kick off the recursive 'createSplit' procedure