001    package net.minecraft.src;
002    
003    import java.util.Random;
004    
005    public class WorldGenMinable extends WorldGenerator
006    {
007        /** The block ID of the ore to be placed using this generator. */
008        private int minableBlockId;
009        private int minableBlockMeta = 0;
010    
011        /** The number of blocks to generate. */
012        private int numberOfBlocks;
013    
014        public WorldGenMinable(int par1, int par2)
015        {
016            this.minableBlockId = par1;
017            this.numberOfBlocks = par2;
018        }
019    
020        public WorldGenMinable(int id, int meta, int number)
021        {
022            this(id, number);
023            minableBlockMeta = meta;
024        }
025    
026        public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
027        {
028            float var6 = par2Random.nextFloat() * (float)Math.PI;
029            double var7 = (double)((float)(par3 + 8) + MathHelper.sin(var6) * (float)this.numberOfBlocks / 8.0F);
030            double var9 = (double)((float)(par3 + 8) - MathHelper.sin(var6) * (float)this.numberOfBlocks / 8.0F);
031            double var11 = (double)((float)(par5 + 8) + MathHelper.cos(var6) * (float)this.numberOfBlocks / 8.0F);
032            double var13 = (double)((float)(par5 + 8) - MathHelper.cos(var6) * (float)this.numberOfBlocks / 8.0F);
033            double var15 = (double)(par4 + par2Random.nextInt(3) - 2);
034            double var17 = (double)(par4 + par2Random.nextInt(3) - 2);
035    
036            for (int var19 = 0; var19 <= this.numberOfBlocks; ++var19)
037            {
038                double var20 = var7 + (var9 - var7) * (double)var19 / (double)this.numberOfBlocks;
039                double var22 = var15 + (var17 - var15) * (double)var19 / (double)this.numberOfBlocks;
040                double var24 = var11 + (var13 - var11) * (double)var19 / (double)this.numberOfBlocks;
041                double var26 = par2Random.nextDouble() * (double)this.numberOfBlocks / 16.0D;
042                double var28 = (double)(MathHelper.sin((float)var19 * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * var26 + 1.0D;
043                double var30 = (double)(MathHelper.sin((float)var19 * (float)Math.PI / (float)this.numberOfBlocks) + 1.0F) * var26 + 1.0D;
044                int var32 = MathHelper.floor_double(var20 - var28 / 2.0D);
045                int var33 = MathHelper.floor_double(var22 - var30 / 2.0D);
046                int var34 = MathHelper.floor_double(var24 - var28 / 2.0D);
047                int var35 = MathHelper.floor_double(var20 + var28 / 2.0D);
048                int var36 = MathHelper.floor_double(var22 + var30 / 2.0D);
049                int var37 = MathHelper.floor_double(var24 + var28 / 2.0D);
050    
051                for (int var38 = var32; var38 <= var35; ++var38)
052                {
053                    double var39 = ((double)var38 + 0.5D - var20) / (var28 / 2.0D);
054    
055                    if (var39 * var39 < 1.0D)
056                    {
057                        for (int var41 = var33; var41 <= var36; ++var41)
058                        {
059                            double var42 = ((double)var41 + 0.5D - var22) / (var30 / 2.0D);
060    
061                            if (var39 * var39 + var42 * var42 < 1.0D)
062                            {
063                                for (int var44 = var34; var44 <= var37; ++var44)
064                                {
065                                    double var45 = ((double)var44 + 0.5D - var24) / (var28 / 2.0D);
066    
067                                    Block block = Block.blocksList[par1World.getBlockId(var38, var41, var44)];
068                                    if (var39 * var39 + var42 * var42 + var45 * var45 < 1.0D && (block != null && block.isGenMineableReplaceable(par1World, var38, var41, var44)))
069                                    {
070                                        par1World.setBlockAndMetadata(var38, var41, var44, this.minableBlockId, minableBlockMeta);
071                                    }
072                                }
073                            }
074                        }
075                    }
076                }
077            }
078    
079            return true;
080        }
081    }