001package net.minecraft.world.gen.feature;
002
003import java.util.Random;
004import net.minecraft.block.Block;
005import net.minecraft.util.MathHelper;
006import net.minecraft.world.World;
007
008public class WorldGenMinable extends WorldGenerator
009{
010    /** The block ID of the ore to be placed using this generator. */
011    private int minableBlockId;
012    private int minableBlockMeta = 0;
013
014    /** The number of blocks to generate. */
015    private int numberOfBlocks;
016    private int field_94523_c;
017
018    public WorldGenMinable(int par1, int par2)
019    {
020        this(par1, par2, Block.stone.blockID);
021    }
022
023    public WorldGenMinable(int par1, int par2, int par3)
024    {
025        this.minableBlockId = par1;
026        this.numberOfBlocks = par2;
027        this.field_94523_c = par3;
028    }
029
030    public WorldGenMinable(int id, int meta, int number, int target)
031    {
032        this(id, number, target);
033        minableBlockMeta = meta;
034    }
035
036    public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
037    {
038        float f = par2Random.nextFloat() * (float)Math.PI;
039        double d0 = (double)((float)(par3 + 8) + MathHelper.sin(f) * (float)this.numberOfBlocks / 8.0F);
040        double d1 = (double)((float)(par3 + 8) - MathHelper.sin(f) * (float)this.numberOfBlocks / 8.0F);
041        double d2 = (double)((float)(par5 + 8) + MathHelper.cos(f) * (float)this.numberOfBlocks / 8.0F);
042        double d3 = (double)((float)(par5 + 8) - MathHelper.cos(f) * (float)this.numberOfBlocks / 8.0F);
043        double d4 = (double)(par4 + par2Random.nextInt(3) - 2);
044        double d5 = (double)(par4 + par2Random.nextInt(3) - 2);
045
046        for (int l = 0; l <= this.numberOfBlocks; ++l)
047        {
048            double d6 = d0 + (d1 - d0) * (double)l / (double)this.numberOfBlocks;
049            double d7 = d4 + (d5 - d4) * (double)l / (double)this.numberOfBlocks;
050            double d8 = d2 + (d3 - d2) * (double)l / (double)this.numberOfBlocks;
051            double d9 = par2Random.nextDouble() * (double)this.numberOfBlocks / 16.0D;
052            double d10 = (double)(MathHelper.sin((float)l * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * d9 + 1.0D;
053            double d11 = (double)(MathHelper.sin((float)l * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * d9 + 1.0D;
054            int i1 = MathHelper.floor_double(d6 - d10 / 2.0D);
055            int j1 = MathHelper.floor_double(d7 - d11 / 2.0D);
056            int k1 = MathHelper.floor_double(d8 - d10 / 2.0D);
057            int l1 = MathHelper.floor_double(d6 + d10 / 2.0D);
058            int i2 = MathHelper.floor_double(d7 + d11 / 2.0D);
059            int j2 = MathHelper.floor_double(d8 + d10 / 2.0D);
060
061            for (int k2 = i1; k2 <= l1; ++k2)
062            {
063                double d12 = ((double)k2 + 0.5D - d6) / (d10 / 2.0D);
064
065                if (d12 * d12 < 1.0D)
066                {
067                    for (int l2 = j1; l2 <= i2; ++l2)
068                    {
069                        double d13 = ((double)l2 + 0.5D - d7) / (d11 / 2.0D);
070
071                        if (d12 * d12 + d13 * d13 < 1.0D)
072                        {
073                            for (int i3 = k1; i3 <= j2; ++i3)
074                            {
075                                double d14 = ((double)i3 + 0.5D - d8) / (d10 / 2.0D);
076
077                                Block block = Block.blocksList[par1World.getBlockId(k2, l2, i3)];
078                                if (d12 * d12 + d13 * d13 + d14 * d14 < 1.0D && (block != null && block.isGenMineableReplaceable(par1World, k2, l2, i3, field_94523_c)))
079                                {
080                                    par1World.setBlock(k2, l2, i3, this.minableBlockId, minableBlockMeta, 2);
081                                }
082                            }
083                        }
084                    }
085                }
086            }
087        }
088
089        return true;
090    }
091}