public virtual void Deactivate()

Deactivated sprites are no longer be drawn and their rules are not processed. In debug mode, attempting to refer to inactive sprites from active rules (or otherwise attempting to execute functions on inactive sprites) will display errors. If the sprite was added as a dynamic sprite by TileAddSprite(Int32, Type), deactivating it will cause ProcessSprites to remove the sprite from all categories so it cannot even be considered for re-activation.