MapGenBaseMeta.java

package micdoodle8.mods.galacticraft.api.prefab.world.gen;

import net.minecraft.world.World;
import net.minecraft.world.chunk.ChunkPrimer;
import net.minecraft.world.chunk.IChunkProvider;

import java.util.Random;

/**
 * Do not include this prefab class in your released mod download.
 * <p/>
 * This is a base class for World Gen such as caves. Override and generate features in recursiveGenerate
 */
public abstract class MapGenBaseMeta
{
    /**
     * The number of Chunks to gen-check in any given direction.
     */
    protected int range = 8;

    /**
     * The RNG used by the MapGen classes.
     */
    protected Random rand = new Random();

    /**
     * This world object.
     */
    protected World worldObj;

    public void generate(IChunkProvider par1IChunkProvider, World world, int chunkX, int chunkZ, ChunkPrimer primer)
    {
        this.worldObj = world;
        this.rand.setSeed(world.getSeed());
        final long r0 = this.rand.nextLong();
        final long r1 = this.rand.nextLong();

        for (int x0 = chunkX - this.range; x0 <= chunkX + this.range; ++x0)
        {
            for (int y0 = chunkZ - this.range; y0 <= chunkZ + this.range; ++y0)
            {
                final long randX = x0 * r0;
                final long randZ = y0 * r1;
                this.rand.setSeed(randX ^ randZ ^ world.getSeed());
                this.recursiveGenerate(world, x0, y0, chunkX, chunkZ, primer);
            }
        }
    }

    /**
     * Recursively called by generate() (generate) and optionally by itself.
     */
    protected void recursiveGenerate(World world, int xChunkCoord, int zChunkCoord, int origXChunkCoord, int origZChunkCoord, ChunkPrimer primer)
    {
    }
}