Various bugfixes

[ProGM]

Hi there, This PR fixes a few bugs I found with this plugin.

• onListen was ignoring all signals, because the operation parameter returned the index of the dropdown instead of the value. Maybe is it some kind of breaking change in the editor?
• The onListen feature crashes when using a parameter != :id, because this.matcherPlaceholders[":*"] was not defined. I assumed it was meant to be self.room.matcherPlaceholders[":*"]
• Colyseus.State() always crashed, because it was accessing to this.room.data instead of this.room.state
• I've added a try {...} catch {...} to the getDeepVariable helper function, to handle wrong paths gracefully.

I hope you'll appreciate ;)

As a side note: The build command c3addon pack --root plugin is kinda broken. It generates a package that is recognized as invalid from Construct. To make it work, I had to unzip it and zip it again the files to create a valid one.

[endel]

Great catches, @ProGM! thanks a lot for taking your time to submit this PR.

Which operating system are you using? I've tested c3addon only on Mac.

Cheers!

[endel]

Published new version here: https://www.construct.net/br/make-games/addons/111/colyseus-multiplayer/0-9-4

[ProGM]

@endel 👍

I have a Mac, too... Who knows!