[Solved] Ores not generating with CustomOreGenerator

package net.insane96mcp.galaxite.worldgen;

import java.util.Random;

import com.google.common.base.Predicate;

import net.insane96mcp.galaxite.lib.Properties;
import net.minecraft.block.Block;
import net.minecraft.block.BlockAir;
import net.minecraft.block.BlockStone;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.WorldGenerator;

public class CustomOreGenenerator extends WorldGenerator
{
    private final IBlockState oreBlock;
    /** The number of blocks to generate. */
    private final int numberOfBlocks;
    private final Predicate<IBlockState> predicate;

    public CustomOreGenenerator(IBlockState state, int blockCount)
    {
        this(state, blockCount, new CustomOreGenenerator.StonePredicate());
    }

    public CustomOreGenenerator(IBlockState state, int blockCount, Predicate<IBlockState> p_i45631_3_)
    {
        this.oreBlock = state;
        this.numberOfBlocks = blockCount;
        this.predicate = p_i45631_3_;
    }

    public boolean generate(World worldIn, Random rand, BlockPos position)
    {
        Block blockposYUp = worldIn.getBlockState(position.add(0, 1, 0)).getBlock();
        Block blockposYDown = worldIn.getBlockState(position.add(0, -1, 0)).getBlock();
        Block blockposXUp = worldIn.getBlockState(position.add(1, 0, 0)).getBlock();
        Block blockposXDown = worldIn.getBlockState(position.add(-1, 0, 0)).getBlock();
        Block blockposZUp = worldIn.getBlockState(position.add(0, 0, 1)).getBlock();
        Block blockposZDown = worldIn.getBlockState(position.add(0, 0, -1)).getBlock();
        if (
        	((blockposXUp instanceof BlockAir || 
        	blockposXDown instanceof BlockAir || 
        	blockposYUp instanceof BlockAir || 
        	blockposYDown instanceof BlockAir || 
        	blockposZUp instanceof BlockAir || 
        	blockposZDown instanceof BlockAir) &&
        	Properties.OreGeneration.onlyNearAir) ||
        	!Properties.OreGeneration.onlyNearAir
        ) {
	        float f = rand.nextFloat() * (float)Math.PI;
	        double d0 = (double)((float)(position.getX() + 8) + MathHelper.sin(f) * (float)this.numberOfBlocks / 8.0F);
	        double d1 = (double)((float)(position.getX() + 8) - MathHelper.sin(f) * (float)this.numberOfBlocks / 8.0F);
	        double d2 = (double)((float)(position.getZ() + 8) + MathHelper.cos(f) * (float)this.numberOfBlocks / 8.0F);
	        double d3 = (double)((float)(position.getZ() + 8) - MathHelper.cos(f) * (float)this.numberOfBlocks / 8.0F);
	        double d4 = (double)(position.getY() + rand.nextInt(3) - 2);
	        double d5 = (double)(position.getY() + rand.nextInt(3) - 2);
	
	        for (int i = 0; i < this.numberOfBlocks; ++i)
	        {
	            float f1 = (float)i / (float)this.numberOfBlocks;
	            double d6 = d0 + (d1 - d0) * (double)f1;
	            double d7 = d4 + (d5 - d4) * (double)f1;
	            double d8 = d2 + (d3 - d2) * (double)f1;
	            double d9 = rand.nextDouble() * (double)this.numberOfBlocks / 16.0D;
	            double d10 = (double)(MathHelper.sin((float)Math.PI * f1) + 1.0F) * d9 + 1.0D;
	            double d11 = (double)(MathHelper.sin((float)Math.PI * f1) + 1.0F) * d9 + 1.0D;
	            int j = MathHelper.floor(d6 - d10 / 2.0D);
	            int k = MathHelper.floor(d7 - d11 / 2.0D);
	            int l = MathHelper.floor(d8 - d10 / 2.0D);
	            int i1 = MathHelper.floor(d6 + d10 / 2.0D);
	            int j1 = MathHelper.floor(d7 + d11 / 2.0D);
	            int k1 = MathHelper.floor(d8 + d10 / 2.0D);
	
	            for (int l1 = j; l1 <= i1; ++l1)
	            {
	                double d12 = ((double)l1 + 0.5D - d6) / (d10 / 2.0D);
	
	                if (d12 * d12 < 1.0D)
	                {
	                    for (int i2 = k; i2 <= j1; ++i2)
	                    {
	                        double d13 = ((double)i2 + 0.5D - d7) / (d11 / 2.0D);
	
	                        if (d12 * d12 + d13 * d13 < 1.0D)
	                        {
	                            for (int j2 = l; j2 <= k1; ++j2)
	                            {
	                                double d14 = ((double)j2 + 0.5D - d8) / (d10 / 2.0D);
	                                System.out.println("" + (d12 * d12 + d13 * d13 + d14 * d14));
	                                if (d12 * d12 + d13 * d13 + d14 * d14 < 1.0D)
	                                {
	                                    BlockPos blockpos = new BlockPos(l1, i2, j2);
	                                    IBlockState state = worldIn.getBlockState(blockpos);
	                                    if (state.getBlock().isReplaceableOreGen(state, worldIn, blockpos, this.predicate))
	                                    {
	                                        worldIn.setBlockState(blockpos, this.oreBlock, 2);
	                                    }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }

        return true;
    }

    static class StonePredicate implements Predicate<IBlockState>
        {
            private StonePredicate()
            {
            }

            public boolean apply(IBlockState p_apply_1_)
            {
                if (p_apply_1_ != null && p_apply_1_.getBlock() == Blocks.STONE)
                {
                    BlockStone.EnumType blockstone$enumtype = (BlockStone.EnumType)p_apply_1_.getValue(BlockStone.VARIANT);
                    return blockstone$enumtype.isNatural();
                }
                else
                {
                    return false;
                }
            }
        }
}