Difference between revisions of "Registry of Message Ids"
m (Added MessagePlay2 ID 29345) |
m (Added additional suggestion to validate message in paragraph 3) |
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much more often than people think. | 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. | + | 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. Additionally, consider a method to validate messages such as encoding the name of your mod in the message. |
Also if you are writing a mod, be aware that you may be receiving messages that do not match your format! | Also if you are writing a mod, be aware that you may be receiving messages that do not match your format! | ||
Latest revision as of 00:21, 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. Additionally, consider a method to validate messages such as encoding the name of your mod in the message.
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.
| Id | Mod Name | Message Type |
| 1001 | MessagePlay | Plugin Client-Server Communications |
| 1002 | VoteRelay | Plugin Client-Server Communications |
| 29345 | MessagePlay2 | Plugin Client-Server Communications |
| 59619 | HoverRail | Setting Update |
| 54599 | CameraControl | Setting Update |
