Simplifications about fun HOT 4 OPEN

Thanks for your feedback!
I'll update my code.

so driver.CallSync will be executed asynchronously?
If so there is no performance merit to do this as you suggested. Indeed, I found this go routing stuff don't improve
any performance.

from fun.

driver.CallSync calls f on the UI go-routine and blocks until it has completed.
This is exactly what you were doing by hand.

Cheers,
Ben

from fun.

ok then may be it is fast enough,so no need to do calculate next state in different go routing.

from fun.

I see you're still using driver.Call instead of driver.CallSync, which could mean the ticker could run way ahead of the UI routine.
Apart from that, looks good!

from fun.