MapGenBaseMeta.java

/**
 * Copyright (c) 22/Feb/2015 Davide Cossu & Matthew Albrecht.
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 3 of the License, or (at your option) any
 * later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, see <http://www.gnu.org/licenses>.
 */

package com.minestellar.utils.world.gen;

import java.util.Random;

import net.minecraft.block.Block;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;

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, Block[] blocks, byte[] metadata) {
		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, blocks, metadata);
			}
		}
	}

	/**
	 * Recursively called by generate() (generate) and optionally by itself.
	 */
	protected void recursiveGenerate(World world, int xChunkCoord, int zChunkCoord, int origXChunkCoord, int origZChunkCoord, Block[] blocks, byte[] metadata) {
	}
}