Mirror/doc/Articles/Guides/IDs.md

# Got ID?

## Asset Id

Mirror uses GUID for Asset Ids. Every prefab with a NetworkIdentity component has an Asset Id, which is simply Unity's AssetDatabase.AssetPathToGUID converted to 16 bytes. Mirror needs that to know which prefabs to spawn.

## Scene Id

Mirror uses uint for Scene Ids. Every game object with a NetworkIdentity in the scene (hierarchy) is assigned a scene id in OnPostProcessScene. Mirror needs that to distinguish scene objects from each other, because Unity has no unique id for different game objects in the scene.

## Network Instance Id (a.k.a. NetId)

Mirror uses uint for NetId. Every NetworkIdentity is assigned a NetId in NetworkIdentity.OnStartServer, or after spawning it. Mirror uses the id when passing messages between client and server to tell which object is the recipient of the message.

## Connection Id

Every network connection has a connection id, which is assigned by the low level Transport layer. Connection id 0 is reserved for the local connection when the server is also a client (host)
New Documentation (#184) * Documentation Outline * Spacing adjustments * Captured old wiki content * yml fix * Docs work * resize images * Replaced images * Removed md from links * Renamed Misty to Fizzy * Captured Unity docs * links cleanup * clear links * Cleanup and moved NetworkBehavior to Classes. * added slashes to yml paths * reverted slashes * Fixes bad link * Update Ignorance.md This should be enough documentation for now, yeah? * Localized images * Update Ignorance.md formatting updates * Lots of Cleanup * fix link * Formatting * fix code blocks * Lots of content and cleanup * fixed yml * Added blank line * Added spaces in titles * tightened bullets * Fixed bullet spacing * Fixed more bullets * unbolded content * Cleanup and removal of empty pages Updated README with links to docs pages * Restored prior version * Contributing * Improvements to content * lower case fix * fix link * renamed Contributions * fixed link * home page content * Fixed Encoding * Moved Why TCP * Replaced Unity with Mirror * Telepathy Description * changed to h2 * Moved Sample down * Removed dead links * Copied Contributions Added Test Fixed h3's * Fixed headings * added to Test * Fixed image alts and links * fixed last alt 2018-12-26 22:07:24 +00:00			`# Got ID?`

			`## Asset Id`

			`Mirror uses GUID for Asset Ids. Every prefab with a NetworkIdentity component has an Asset Id, which is simply Unity's AssetDatabase.AssetPathToGUID converted to 16 bytes. Mirror needs that to know which prefabs to spawn.`

			`## Scene Id`

Replaced excessive use of 'GameObject' with 'game object' in docs 2019-07-07 05:48:00 +00:00			`Mirror uses uint for Scene Ids. Every game object with a NetworkIdentity in the scene (hierarchy) is assigned a scene id in OnPostProcessScene. Mirror needs that to distinguish scene objects from each other, because Unity has no unique id for different game objects in the scene.`
New Documentation (#184) * Documentation Outline * Spacing adjustments * Captured old wiki content * yml fix * Docs work * resize images * Replaced images * Removed md from links * Renamed Misty to Fizzy * Captured Unity docs * links cleanup * clear links * Cleanup and moved NetworkBehavior to Classes. * added slashes to yml paths * reverted slashes * Fixes bad link * Update Ignorance.md This should be enough documentation for now, yeah? * Localized images * Update Ignorance.md formatting updates * Lots of Cleanup * fix link * Formatting * fix code blocks * Lots of content and cleanup * fixed yml * Added blank line * Added spaces in titles * tightened bullets * Fixed bullet spacing * Fixed more bullets * unbolded content * Cleanup and removal of empty pages Updated README with links to docs pages * Restored prior version * Contributing * Improvements to content * lower case fix * fix link * renamed Contributions * fixed link * home page content * Fixed Encoding * Moved Why TCP * Replaced Unity with Mirror * Telepathy Description * changed to h2 * Moved Sample down * Removed dead links * Copied Contributions Added Test Fixed h3's * Fixed headings * added to Test * Fixed image alts and links * fixed last alt 2018-12-26 22:07:24 +00:00
			`## Network Instance Id (a.k.a. NetId)`

			`Mirror uses uint for NetId. Every NetworkIdentity is assigned a NetId in NetworkIdentity.OnStartServer, or after spawning it. Mirror uses the id when passing messages between client and server to tell which object is the recipient of the message.`

			`## Connection Id`

			`Every network connection has a connection id, which is assigned by the low level Transport layer. Connection id 0 is reserved for the local connection when the server is also a client (host)`