Where are the source files for forge?

Question

When I try to open Block.class, or any other classes from the same package as Block.class, eclipse will say: "the source attachment does not contain the source for the Block.class. You can change the source attachment by clicking Change Attached Source below:"

What did I do wrong? Where's the source code then?

Also, when I type "extends Block", and hover my cursor over the word "Block" this appears:

net.minecraft.init.Blocks

Note: This element neither has attached source nor attached Javadoc and hence no Javadoc could be found.

I highly doubt that Minecraft source code is available anywhere. You won't find source to attach in your IDE. — Paul Hicks, Jun 03 '14 at 21:42

score 4 · Answer 1 · answered Nov 22 '14 at 05:02

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Just dogradlew setupDecompWorkspace in your forge folder and you will be able to see the source code (as long as you're working with forge 1.7+). Any way as far as I know your mod will run anyway without having the source attached, but sometimes it helps a lot to see minecraft source code.

answered Nov 22 '14 at 05:02

Felipe Ignacio Pezoa Pinochet

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gradlew setupDecompWorkspace is not available any longer. – Anders Lindén Feb 24 '19 at 18:48
@AndersLindén It's almost a year late, and maybe you already discovered this. You can use the *eclipse* task to decompile the sources and then find them in a jar hidden in a cache directory. – Uyghur Lives Matter Nov 09 '19 at 04:57

score 3 · Answer 2 · edited Jul 09 '22 at 15:08

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You can find the source for Minecraft Forge at the Minecraft Forge github repository. However, the minecraft source code is private, so you have to decompile it yourself with ./gradlew setUpDecompWorkspace

edited Jul 09 '22 at 15:08

Stabledog

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answered Apr 29 '15 at 15:58

Universal Electricity

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How do you do that now, when gradlew setUpDecompWorkspace is not any longer available? – Anders Lindén Feb 24 '19 at 18:49

Uyghur Lives Matter · Answer 3 · 2019-11-10T04:36:34.897

There is no longer a direct task that will decompile Minecraft with Forge for Minecraft 1.14. You can cause the sources to be generated by running the eclipse task.

First, make sure the eclipse plugin is applied in build.gradle:

apply plugin: 'eclipse'

Next, run the eclipse task and let it run:

./gradlew eclipse

Now the Minecraft sources should be in an output.jar located at:

Linux:

~/.gradle/caches/forge_gradle/minecraft_user_repo/mcp/<MC VERSION>-<TIMESTAMP>/joined/patch/output.jar

Windows:

C:\Users\<USER>\.gradle\caches\forge_gradle\minecraft_user_repo\mcp\<MC VERSION>-<TIMESTAMP>\joined\patch\output.jar

score -1 · Answer 4 · answered Jun 05 '14 at 18:21

Forge never decompiles the Minecraft sources, in versions for 1.6.4 and earlier it included MCP (Minecraft Coder Pack) which decompiled the sources for you, however there has not been a MCP version for 1.7.2 and as such Forge for 1.7.2 and later does not include it.

score -2 · Answer 5 · edited Apr 24 '21 at 11:03

Dude: In eclipse, click in Referenced Libraries,

right click in the first librarie (forgeBin-1.7.10-10.13.2.1230.jar or something like that),
click on Properties, select External Location and paste this C:/Users/USERNAME/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.2-10.12.0.1049/forgeSrc-1.7.2-10.12.0.1049-sources.jar(of course, chage "USERNAME" with the real name you have in your computer)
Click Apply and then OK and its done.
If that doesnt work, try finding the correct path for your forgeSrc-1.7.2-10.12.0.1049-sources.jar file in your pc and paste it in the External Location.

Where are the source files for forge?

5 Answers5