1. Clone this repository via

• SSH git clone git@github.com:TerraFirmaCraft-The-Final-Frontier/RoughlyEnoughIDs.git or
• HTTPS git clone https://github.com/TerraFirmaCraft-The-Final-Frontier/RoughlyEnoughIDs.git

2. Build using the gradlew build command. Jar will be in build/libs

Gradle for this project requires Java 25 or higher!
Running on:

• Gradle 9.2.1
• RetroFuturaGradle 2.0.2
• Forge 14.23.5.2847

Since v2.3.0, this mod provides an API to allow mod authors to add REID compatibility. Generally, most mods will already be supported out of the box - this API is for certain elements of mods that require explicit support, either from REID's side through mixins, or from the mod's side. The API currently provides:

• BiomeApi: Reading/writing biome ids in REID format. Any mod with mechanics that manually change biomes in a chunk should use this.
• Various classes for compatibility: see api/compat package.

See the javadocs for each api service for more details.

Before the API existed, some mods added compatibility for JEID/REID's extended biomes like so:

public static void setBiome(World world, BlockPos pos, int id) {
    Chunk chunk = world.getChunk(pos);
    int i = ((pos.getZ() & 15) << 4) | (pos.getX() & 15);
    // JEID/REID biome update
    if (jeidLoaded && chunk instanceof INewChunk) {
        ((INewChunk) chunk).getIntBiomeArray()[i] = id;
    }
    // Vanilla biome update
    else {
        chunk.getBiomeArray()[i] = (byte) id;
    }
}

(See an example here by Bewitchment). The BiomeApi seeks to simplify this usage; now all you would need to update the biome in REID format is:

public static void setBiome(World world, BlockPos pos, int id) {
    Chunk chunk = world.getChunk(pos);
    // REID biome update
    if (reidApiLoaded) {
        BiomeApi.INSTANCE.updateBiome(chunk, pos, id);
    }
    // Vanilla biome update
    else {
        // The index is only needed for vanilla now!
        int i = ((pos.getZ() & 15) << 4) | (pos.getX() & 15);
        chunk.getBiomeArray()[i] = (byte) id;
    }
}

This could also allow future versions of REID to change its biome format without breaking your compatibility code.