parameters improvement

Apart from having other types of parameter (topic already discussed elsewhere), I think it could be really usefull to have the possibility to set an optional callback function called whenever the parameter value changes.

I second this, I’ve secretly wished for this on a few occasions.

Could you register that as a feature request on the issue tracker? It’s a good idea and one that has come up before.

https://bitbucket.org/TwoLivesLeft/codea/issues