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4jcraft/Minecraft.Client/Network Implementation Notes.md
Liriosha 07ab03d812
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2026-03-13 23:00:35 -04:00

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Network Code Implementation Notes

Overview

The networking classes are organized as follows:

									Game														\
									  ^															|
									  |															|
		+-----------------------------+-----------------------------+							|
		|															|							|
		v															v							|
Game Network Manager <--------------------------------> Network Player Interface				|-		platform independent layers
		^															^							|
		|															|							|						
		v															|							|
Platform Network Manager Interface									|							|
		^															|							/
		|															|							
		v															v							\
Platform Network Manager Implementation(1) <------> Network Player Implementation (3)			|
		^															^							|_		platform specific layers
		|															|							|
		v															v							|
Platform specific network code(2)				   Platform specific player code (4)			/

Notes

  • In general the game should only communicate with the GameNetworkManager and NetworkPlayerInterface APIs, which provide a platform independent interface for networking functionality. The GameNetworkManager may in general have code which is aware of the game itself, but it shouldn't have any platform-specific networking code. It communicates with a platform specific implementation of a PlatformNetworkManagerInterface to achieve this.

  • The platform specific layers shouldn't contain any general game code, as this is much better placed in the platform independent layers to avoid duplicating effort.

  • Platform specific files for each platform for the numbered classes in the previous diagram are currently:

Platform-Specific Files

The platform-specific implementations for each numbered class in the diagram:

Class Xbox 360 Sony Other
(1) PlatformNetworkManagerXbox PlatformNetworkManagerSony PlatformNetworkManagerStub
(2) Provided by QNET SQRNetworkManager Qnet stub*
(3) NetworkPlayerXbox NetworkPlayerSony NetworkPlayerXbox
(4) Provided by QNET SQRNetworkPlayer Qnet stub*
*Temporarily provided by extra64.h