Difference between revisions of "Registry of Message Ids"

Revision as of 00:17, 1 July 2017

When calling RegisterMessageHandler or SendMessage in the mod API, a "message id" must be provided. This number is of type "ushort", meaning there are 65536 possible values. However, if everybody picks a value at random, then you will get a 50% chance of a collision after only 300 random picks. That is not a lot!

This is a case of the birthday paradox, where random selection leads to collisions much more often than people think.

To avoid this issue, when creating a mod that uses network messages, please add your message ids to this page. Avoid reusing already selected ids.

Also if you are writing a mod, be aware that you may be receiving messages that do not match your format!

Humans are bad at random numbers. To create a random id, you can use random.org.

Please keep entries sorted numerically.