yansnow78

to reproduce the crash , just run the following demo.py from an IDE you will then get the error : pygame.error: No video mode has been set ``` import pgzrun...

my proposal is based on [pgzhelper](https://github.com/QuirkyCort/pgzhelper) originally there was just some extra function in pgzhelper.Actor but i think it's better to handle that outside Actor classes this is how it...

there is he same bug with property velocity. I don't understand how this bug can be there since 2 years without any correction an other way to fix it is...