protected override void WorldPositionChanged(object source)
{
base.WorldPositionChanged(source);
Vector3D worldPosition;
SlimBlock.ComputeWorldCenter(out worldPosition);
Vector3D diff = worldPosition - oldWorldPosition;
double lengthSq = diff.LengthSquared();
if (lengthSq > MIN_MOVEMENT_SQUARED_FOR_UPDATE)
{
if (m_light != null && m_light.RenderObjectID != MyRenderProxy.RENDER_ID_UNASSIGNED)
{
m_light.MarkPositionDirty();
}
}
oldWorldPosition = worldPosition;
if (m_oldWorldMatrix.Forward != WorldMatrix.Forward)
{
if (m_light != null && m_light.RenderObjectID != MyRenderProxy.RENDER_ID_UNASSIGNED)
{
m_light.MarkPositionDirty();
}
}
m_oldWorldMatrix = WorldMatrix;
if (m_light != null && m_light.RenderObjectID != MyRenderProxy.RENDER_ID_UNASSIGNED)
{
m_light.UpdateLight();
}
}
private void UpdateLightPosition()
{
if (m_light == null || !m_positionDirty)
{
return;
}
ProfilerShort.Begin("UpdateLightPosition");
var newPos = PositionComp.GetPosition() + Vector3.TransformNormal(m_lightLocalPosition, WorldMatrix);
if (Vector3D.DistanceSquared(m_lightWorldPosition, newPos) > 0.0001)
{
m_lightWorldPosition = newPos;
m_light.MarkPositionDirty();
}
m_light.ParentID = Render.GetRenderObjectID();
MatrixD toLocal = PositionComp.WorldMatrixNormalizedInv;
m_light.Position = Vector3D.Transform(m_lightWorldPosition, toLocal);
m_light.ReflectorDirection = Vector3D.TransformNormal(WorldMatrix.Forward, toLocal);
m_light.ReflectorUp = Vector3D.TransformNormal(WorldMatrix.Up, toLocal);
m_light.MarkPropertiesDirty();
m_positionDirty = false;
ProfilerShort.End();
}