Load / Inject JAR file at runtime

[CraftedCart]

Hi there.

The mod I'm working on requires another jar file to function properly (slick-util.jar). I have it set up so that if the file

mods/CraftedCart/slick-util.jar

doesn't exist, my mod will download it before doing anything else (in pre-init). The only issue I have now is how do I load the .jar file. I am aware of the Loader and ModDiscoverer classes, however I have no idea how to use them, or if they will help.

 

(Oh, and slick-util.jar isn't a mod, but it works if I throw it into the mods folder)

 

EDIT:

Nevermind, found it whilst looking through CodeChickenCore

 

File depsPath = new File(Minecraft.getMinecraft().mcDataDir.getAbsolutePath(), "mods/CraftedCart");

LaunchClassLoader loader = (LaunchClassLoader) DependencyUtils.class.getClassLoader();
loader.addURL(new File(depsPath, "slick-util.jar").toURI().toURL());

 

As far as I can tell, my DependencyUtils class can be replaced with another one of your own classes.

The example above will load mods/CraftedCart/slick-util.jar

[Draco18s]

You should read about Shading.

 

That's really cool.