001    package net.minecraft.src;
002    
003    import java.util.Random;
004    
005    public class WorldGenShrub extends WorldGenerator
006    {
007        private int field_76527_a;
008        private int field_76526_b;
009    
010        public WorldGenShrub(int par1, int par2)
011        {
012            this.field_76526_b = par1;
013            this.field_76527_a = par2;
014        }
015    
016        public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
017        {
018            int var15;
019    
020            Block block = null;
021            do 
022            {
023                block = Block.blocksList[par1World.getBlockId(par3,  par4, par5)];
024                if (block != null && !block.isLeaves(par1World, par3, par4, par5))
025                {
026                    break;
027                }
028                par4--;
029            } while (par4 > 0);
030    
031            int var7 = par1World.getBlockId(par3, par4, par5);
032    
033            if (var7 == Block.dirt.blockID || var7 == Block.grass.blockID)
034            {
035                ++par4;
036                this.setBlockAndMetadata(par1World, par3, par4, par5, Block.wood.blockID, this.field_76526_b);
037    
038                for (int var8 = par4; var8 <= par4 + 2; ++var8)
039                {
040                    int var9 = var8 - par4;
041                    int var10 = 2 - var9;
042    
043                    for (int var11 = par3 - var10; var11 <= par3 + var10; ++var11)
044                    {
045                        int var12 = var11 - par3;
046    
047                        for (int var13 = par5 - var10; var13 <= par5 + var10; ++var13)
048                        {
049                            int var14 = var13 - par5;
050    
051                            block = Block.blocksList[par1World.getBlockId(var11, var8, var13)];
052    
053                            if ((Math.abs(var12) != var10 || Math.abs(var14) != var10 || par2Random.nextInt(2) != 0) && 
054                                (block == null || block.canBeReplacedByLeaves(par1World, var11, var8, var13)))
055                            {
056                                this.setBlockAndMetadata(par1World, var11, var8, var13, Block.leaves.blockID, this.field_76527_a);
057                            }
058                        }
059                    }
060                }
061            }
062    
063            return true;
064        }
065    }