First of all, great engine!
I am using sheetengine for a multiplayer game, for the characters I'm using the example provided in "collision detection".
Now everything works great, you control your user, and see other users moving when they move. But I have a problem when they leave.
All users online are stored in the client on an array as follows:
App.players[data.user] // where data.user is their (unique) name
When a user disconnects, I'm doing:
Which seems to work for everyone except for the first user that was online, who sees this message after:
Uncaught TypeError: Cannot read property 'hidden' of undefined
If you need any more info let me know