001    package net.minecraft.world.gen.feature;
002    
003    import java.util.Random;
004    import net.minecraft.block.Block;
005    import net.minecraft.util.MathHelper;
006    import net.minecraft.world.World;
007    
008    public 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    
017        public WorldGenMinable(int par1, int par2)
018        {
019            this.minableBlockId = par1;
020            this.numberOfBlocks = par2;
021        }
022    
023        public WorldGenMinable(int id, int meta, int number)
024        {
025            this(id, number);
026            minableBlockMeta = meta;
027        }
028    
029        public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
030        {
031            float var6 = par2Random.nextFloat() * (float)Math.PI;
032            double var7 = (double)((float)(par3 + 8) + MathHelper.sin(var6) * (float)this.numberOfBlocks / 8.0F);
033            double var9 = (double)((float)(par3 + 8) - MathHelper.sin(var6) * (float)this.numberOfBlocks / 8.0F);
034            double var11 = (double)((float)(par5 + 8) + MathHelper.cos(var6) * (float)this.numberOfBlocks / 8.0F);
035            double var13 = (double)((float)(par5 + 8) - MathHelper.cos(var6) * (float)this.numberOfBlocks / 8.0F);
036            double var15 = (double)(par4 + par2Random.nextInt(3) - 2);
037            double var17 = (double)(par4 + par2Random.nextInt(3) - 2);
038    
039            for (int var19 = 0; var19 <= this.numberOfBlocks; ++var19)
040            {
041                double var20 = var7 + (var9 - var7) * (double)var19 / (double)this.numberOfBlocks;
042                double var22 = var15 + (var17 - var15) * (double)var19 / (double)this.numberOfBlocks;
043                double var24 = var11 + (var13 - var11) * (double)var19 / (double)this.numberOfBlocks;
044                double var26 = par2Random.nextDouble() * (double)this.numberOfBlocks / 16.0D;
045                double var28 = (double)(MathHelper.sin((float)var19 * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * var26 + 1.0D;
046                double var30 = (double)(MathHelper.sin((float)var19 * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * var26 + 1.0D;
047                int var32 = MathHelper.floor_double(var20 - var28 / 2.0D);
048                int var33 = MathHelper.floor_double(var22 - var30 / 2.0D);
049                int var34 = MathHelper.floor_double(var24 - var28 / 2.0D);
050                int var35 = MathHelper.floor_double(var20 + var28 / 2.0D);
051                int var36 = MathHelper.floor_double(var22 + var30 / 2.0D);
052                int var37 = MathHelper.floor_double(var24 + var28 / 2.0D);
053    
054                for (int var38 = var32; var38 <= var35; ++var38)
055                {
056                    double var39 = ((double)var38 + 0.5D - var20) / (var28 / 2.0D);
057    
058                    if (var39 * var39 < 1.0D)
059                    {
060                        for (int var41 = var33; var41 <= var36; ++var41)
061                        {
062                            double var42 = ((double)var41 + 0.5D - var22) / (var30 / 2.0D);
063    
064                            if (var39 * var39 + var42 * var42 < 1.0D)
065                            {
066                                for (int var44 = var34; var44 <= var37; ++var44)
067                                {
068                                    double var45 = ((double)var44 + 0.5D - var24) / (var28 / 2.0D);
069    
070                                    Block block = Block.blocksList[par1World.getBlockId(var38, var41, var44)];
071                                    if (var39 * var39 + var42 * var42 + var45 * var45 < 1.0D && (block != null && block.isGenMineableReplaceable(par1World, var38, var41, var44)))
072                                    {
073                                        par1World.setBlockAndMetadata(var38, var41, var44, this.minableBlockId, minableBlockMeta);
074                                    }
075                                }
076                            }
077                        }
078                    }
079                }
080            }
081    
082            return true;
083        }
084    }