If you are simply editing a more recent commit or your change is small, simply making the change at HEAD and then moving the commit after you have tested it may be easier.
This method has the benefit of being able to compile to test your change without messing with your API HEAD.
1. Make your change while at HEAD
2. Make a temporary commit. You don't need to make a message for this.
3. Type `git rebase -i upstream/upstream`, move (cut) your temporary commit and move it under the line of the patch you wish to modify.
4. Change the `pick` with `f` (fixup) or `s` (squash) if you need to edit the commit message
We'll accept changes that make sense. You should be able to justify their existence, along with any maintenance costs that come with them. Remember, these changes will affect everyone who runs Paper, not just you and your server.
While we will fix minor formatting issues, you should stick to the guide below when making and submitting changes.
In an effort to make future updates easier on ourselves, Paper tries to use obfuscation helpers whenever possible. The purpose of these helpers is to make the code more readable. These helpers should be be made as easy to inline as possible by the JVM whenever possible.
An obfuscation helper to get an obfuscated field may be as simple as something like this:
```
public final int getStuckArrows() { return this.bY(); } // Paper - OBFHELPER
```
Or it may be as compex as forwarding an entire method so that it can be overriden later:
```
public boolean be() {
// Paper start - OBFHELPER
return this.pushedByWater();
}
public boolean pushedByWater() {
// Paper end
return true;
}
```
While they may not always be done in exactly the same way each time, the general goal is always to improve readability and maintainability, so use your best judgement.
## Configuration files
To use a configurable value in your patch, add a new entry in either ```PaperConfig``` or ```PaperWorldConfig```. Use the former if a value must remain the same throughout all worlds, or the latter if it can change between worlds. The latter is preferred whenever possible.
###```PaperConfig``` example:
```
public static boolean saveEmptyScoreboardTeams = false;
Notice that the field is always public, but the setter is always private. This is important to the way the configuration generation system works. To access this value, reference it as you would any other static value:
Again, notice that the field is always public, but the setter is always private. To access this value, you'll need an instance of the ```net.minecraft.World``` object:
