Nether Ores Generation

MOD_ FILE CONTENTS:

package net.minecraft.src;

import java.util.Random;

public class mod_tutorial extends BaseMod
{

    //Blocks

    public static final Block Vortexium = (new BlockVortexium(205, ModLoader.addOverride("/terrain.png","/Blocks/vortexium.png")).setHardness(6.0F).setResistance(3.0F).setBlockName("Vortexium"));

    //Items

    public static final Item Neutron = (new ItemNeutron(1009).setItemName("Neutron"));

    public void load()
    {

        Neutron.iconIndex = ModLoader.addOverride("/gui/items.png","/Items/neutroncatalyst.png");


        //Registering

        ModLoader.registerBlock(Vortexium);

        //Adding names

        ModLoader.addName(Neutron,"Neutron Catalyst");
        ModLoader.addName(Vortexium, "Vortexium");



        //Crafting Recipes

        //Smelting Recipes

        //Shapeless Recipes


    }

    public void generateNether(World world, Random random, int chunkX, int chunkZ)
    {
        for (int i = 0; i < 5; i++)
        {
            int randPosX = chunkX + random.nextInt(16);
            int randPosY = random.nextInt(128);
            int randPosZ = chunkZ + random.nextInt(16);
            (new WorldGenNetherOres(mod_tutorial.Vortexium.blockID, 50)).generate(world, random, randPosX, randPosY, randPosZ);
        }
   }

    public String getVersion()
    {
        return "1.2.5";
    }
}



BLOCK VORTEXIUM FILE:

package net.minecraft.src;

import java.util.Random;

public class BlockVortexium extends Block
{
    public BlockVortexium(int par1, int par2)
    {
        super(par1, par2, Material.rock);
    }

    public int quantityDropped(Random random)
    {
        return 1;
    }

    public int idDropped(int par1, Random random, int j)
    {
        return mod_tutorial.Neutron.shiftedIndex;
    }
}



WORLDGENNETHERORES FILE:

package net.minecraft.src;

import java.util.Random;

public class WorldGenNetherOres extends WorldGenerator
{
    /** The block ID of the ore to be placed using this generator. */
    private int minableBlockId;

    /** The number of blocks to generate. */
    private int numberOfBlocks;

    public WorldGenNetherOres(int par1, int par2)
    {
        minableBlockId = par1;
        numberOfBlocks = par2;
    }

    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
    {
        float f = par2Random.nextFloat() * (float)Math.PI;
        double d = (float)(par3 + 8) + (MathHelper.sin(f) * (float)numberOfBlocks) / 8F;
        double d1 = (float)(par3 + 8) - (MathHelper.sin(f) * (float)numberOfBlocks) / 8F;
        double d2 = (float)(par5 + 8) + (MathHelper.cos(f) * (float)numberOfBlocks) / 8F;
        double d3 = (float)(par5 + 8) - (MathHelper.cos(f) * (float)numberOfBlocks) / 8F;
        double d4 = (par4 + par2Random.nextInt(3)) - 2;
        double d5 = (par4 + par2Random.nextInt(3)) - 2;

        for (int i = 0; i <= numberOfBlocks; i++)
        {
            double d6 = d + ((d1 - d) * (double)i) / (double)numberOfBlocks;
            double d7 = d4 + ((d5 - d4) * (double)i) / (double)numberOfBlocks;
            double d8 = d2 + ((d3 - d2) * (double)i) / (double)numberOfBlocks;
            double d9 = (par2Random.nextDouble() * (double)numberOfBlocks) / 16D;
            double d10 = (double)(MathHelper.sin(((float)i * (float)Math.PI) / (float)numberOfBlocks) + 1.0F) * d9 + 1.0D;
            double d11 = (double)(MathHelper.sin(((float)i * (float)Math.PI) / (float)numberOfBlocks) + 1.0F) * d9 + 1.0D;
            int j = MathHelper.floor_double(d6 - d10 / 2D);
            int k = MathHelper.floor_double(d7 - d11 / 2D);
            int l = MathHelper.floor_double(d8 - d10 / 2D);
            int i1 = MathHelper.floor_double(d6 + d10 / 2D);
            int j1 = MathHelper.floor_double(d7 + d11 / 2D);
            int k1 = MathHelper.floor_double(d8 + d10 / 2D);

            for (int l1 = j; l1 <= i1; l1++)
            {
                double d12 = (((double)l1 + 0.5D) - d6) / (d10 / 2D);

                if (d12 * d12 >= 1.0D)
                {
                    continue;
                }

                for (int i2 = k; i2 <= j1; i2++)
                {
                    double d13 = (((double)i2 + 0.5D) - d7) / (d11 / 2D);

                    if (d12 * d12 + d13 * d13 >= 1.0D)
                    {
                        continue;
                    }

                    for (int j2 = l; j2 <= k1; j2++)
                    {
                        double d14 = (((double)j2 + 0.5D) - d8) / (d10 / 2D);

                        if (d12 * d12 + d13 * d13 + d14 * d14 < 1.0D && par1World.getBlockId(l1, i2, j2) == Block.netherrack.blockID)
                        {
                            par1World.setBlock(l1, i2, j2, minableBlockId);
                        }
                    }
                }
            }
        }

        return true;
    }
}