@CJK Thanks! Very helpful!
@Caliguvara 
That's because I omitted some code...
You can follow CJK's suggestion and come up with a better solution~ I would try it later today.
@CJK Thanks! Very helpful!
@Caliguvara That's because I omitted some code...
You can follow CJK's suggestion and come up with a better solution~ I would try it later today.