This automatically deletes its own brain when the scale is complete and optionally deletes the entity as well.
|scale_speed_ms||How many milliseconds the scale should take. Default is 1000. (one second)|
|scalex||the desired final x scale.|
|scaley||the desired final y scale.|
|delete_entity||if true, the entire entity will be deleted when the scale is complete.|
//scale down to nothing and then delete itself