WorldGenDuelMinable.java

package minefantasy.mf2.mechanics.worldGen;

import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.WorldGenerator;

public class WorldGenDuelMinable extends WorldGenerator
{
    private Block ore, specialOre;
    /** The number of blocks to generate. */
    private int veinSize;
    private Block bed;
    private int oreMeta, specialMeta;
    private float chanceForSpecial;

    public WorldGenDuelMinable(Block main, int number, Block extra, float chance)
    {
    	this(main, 0, number, Blocks.stone, extra, 0, chance);
    }
    public WorldGenDuelMinable(Block main, int mainMeta, int number, Block target, Block extra, int extraMeta, float chance)
    {
    	this.ore = main;
    	this.oreMeta = mainMeta;
    	this.veinSize = number;
    	this.bed = target;
    	this.specialOre = extra;
    	this.specialMeta = extraMeta;
    	this.chanceForSpecial = chance;
    }

    public boolean generate(World world, Random seed, int x, int y, int z)
    {
        float f = seed.nextFloat() * (float)Math.PI;
        double d0 = (double)((float)(x + 8) + MathHelper.sin(f) * (float)this.veinSize / 8.0F);
        double d1 = (double)((float)(x + 8) - MathHelper.sin(f) * (float)this.veinSize / 8.0F);
        double d2 = (double)((float)(z + 8) + MathHelper.cos(f) * (float)this.veinSize / 8.0F);
        double d3 = (double)((float)(z + 8) - MathHelper.cos(f) * (float)this.veinSize / 8.0F);
        double d4 = (double)(y + seed.nextInt(3) - 2);
        double d5 = (double)(y + seed.nextInt(3) - 2);

        for (int l = 0; l <= this.veinSize; ++l)
        {
            double d6 = d0 + (d1 - d0) * (double)l / (double)this.veinSize;
            double d7 = d4 + (d5 - d4) * (double)l / (double)this.veinSize;
            double d8 = d2 + (d3 - d2) * (double)l / (double)this.veinSize;
            double d9 = seed.nextDouble() * (double)this.veinSize / 16.0D;
            double d10 = (double)(MathHelper.sin((float)l * (float)Math.PI / (float)this.veinSize) + 1.0F) * d9 + 1.0D;
            double d11 = (double)(MathHelper.sin((float)l * (float)Math.PI / (float)this.veinSize) + 1.0F) * d9 + 1.0D;
            int i1 = MathHelper.floor_double(d6 - d10 / 2.0D);
            int j1 = MathHelper.floor_double(d7 - d11 / 2.0D);
            int k1 = MathHelper.floor_double(d8 - d10 / 2.0D);
            int l1 = MathHelper.floor_double(d6 + d10 / 2.0D);
            int i2 = MathHelper.floor_double(d7 + d11 / 2.0D);
            int j2 = MathHelper.floor_double(d8 + d10 / 2.0D);

            for (int k2 = i1; k2 <= l1; ++k2)
            {
                double d12 = ((double)k2 + 0.5D - d6) / (d10 / 2.0D);

                if (d12 * d12 < 1.0D)
                {
                    for (int l2 = j1; l2 <= i2; ++l2)
                    {
                        double d13 = ((double)l2 + 0.5D - d7) / (d11 / 2.0D);

                        if (d12 * d12 + d13 * d13 < 1.0D)
                        {
                            for (int i3 = k1; i3 <= j2; ++i3)
                            {
                                double d14 = ((double)i3 + 0.5D - d8) / (d10 / 2.0D);

                                if (d12 * d12 + d13 * d13 + d14 * d14 < 1.0D && world.getBlock(k2, l2, i3).isReplaceableOreGen(world, k2, l2, i3, bed))
                                {
                                	if(seed.nextFloat() < chanceForSpecial)
                                	{
                                		world.setBlock(k2, l2, i3, this.specialOre, specialMeta, 2);//Special Block
                                	}
                                	else
                                	{
                                		world.setBlock(k2, l2, i3, this.ore, oreMeta, 2);//Ore
                                	}
                                }
                            }
                        }
                    }
                }
            }
        }

        return true;
    }
}