Notes - for you to receive the toggle has to change so you do not acceot what you have written. 'Half duplex'. Cheat by showing the variables - 'moves' are taken in turn not sychronous. Assumes 2 players only does not negotiate more players. Also available 'Hello world' cloud variable app and note that slither.io has 16 players at once multiplayer in scratch... receive when last digit = toggle, idea is you do not read what you have written so change toggle on write.
Thanks to MIT Dynamo - for the against the computer version
