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39 lines
2.9 KiB
Markdown
39 lines
2.9 KiB
Markdown
Contributing to ProtocolLib
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===========================
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This page will detail specific things that must be done if you intend to contribute to this project.
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## Updating ProtocolLib to a New Protocol Version
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#### Before we get started:
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1. **When do we need to update the protocol version?**
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_A Minecraft protocol version is a number for each specification of the Minecraft protocol.
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This means it is incremented when there is a change to the [Protocol Specification](http://wiki.vg/Protocol),
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but not necessarily for each Minecraft version update. If the latest Minecraft version contains a protocol change,
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that means ProtocolLib needs to be updated._
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2. **When do we need to update other parts of ProtocolLib?**
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_When the package version guard changes. The package version guard is the version string inserted
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into the package identifier for CraftBukkit and net.minecraft.server (e.g. v1_9_R2). It is incremented
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by Spigot if there is a major breaking change in the internal server code. This is to encourage plugins
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that interact directly with CraftBukkit/nms code to update more specifically. However, since most of
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ProtocolLib uses reflection, and the structure of packet classes is generally static, one will have
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to go through the code and change imports from nms/CraftBukkit._
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#### Ready? Let's get started!
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1. Read the [Protocol Changes](http://wiki.vg/Protocol_History). Always make sure the list is both
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complete and correct. If you're unsure, don't hesitate to ask in #mcdevs (the people who maintain wiki.vg) on [libera.chat](http://libera.chat)
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or #spigot on [irc.spi.gt](http://irc.spi.gt) ([webchat](https://irc.spi.gt/iris/?channels=spigot)).
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2. Search for usages of the now-defunct NMS package guard and change them.
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3. The class `com.comphenix.protocol.PacketType` contains a list of all the packets. If any packets were added or removed
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(or had their ID changed), make sure to update this list. If a packet was removed
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in favor of usage of another packet, instead of removing it, move it to the bottom of the list
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in its section, add a deprecation warning to it, and redirect it to the packet that replaced it.
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4. `mvn` in the root directory to build the project.
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5. If tests fail in the maven build, go through the tests to make sure you removed references to any removed packets
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and changed the NMS version guards.
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6. Increment the package version in `com.comphenix.protocol.utility.Constants`.
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7. `com.comphenix.protocol.ProtocolLibrary` contains several constants that must be updated, including the Minecraft version
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and the release date.
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8. `com.comphenix.protocol.utility.MinecraftProtocolVersion` contains a map of all the protocol version integers.
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If the protocol version has been incremented, add a new line to the map.
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9. `mvn` in root directory again. If it builds successfully, test on the appropriate version of a Spigot server. If
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the build fails, debug!
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