001    package net.minecraft.world.gen.feature;
002    
003    import java.util.Random;
004    import net.minecraft.block.Block;
005    import net.minecraft.world.World;
006    
007    public class WorldGenShrub extends WorldGenerator
008    {
009        private int field_76527_a;
010        private int field_76526_b;
011    
012        public WorldGenShrub(int par1, int par2)
013        {
014            this.field_76526_b = par1;
015            this.field_76527_a = par2;
016        }
017    
018        public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
019        {
020            int var15;
021    
022            Block block = null;
023            do 
024            {
025                block = Block.blocksList[par1World.getBlockId(par3,  par4, par5)];
026                if (block != null && !block.isLeaves(par1World, par3, par4, par5))
027                {
028                    break;
029                }
030                par4--;
031            } while (par4 > 0);
032    
033            int var7 = par1World.getBlockId(par3, par4, par5);
034    
035            if (var7 == Block.dirt.blockID || var7 == Block.grass.blockID)
036            {
037                ++par4;
038                this.setBlockAndMetadata(par1World, par3, par4, par5, Block.wood.blockID, this.field_76526_b);
039    
040                for (int var8 = par4; var8 <= par4 + 2; ++var8)
041                {
042                    int var9 = var8 - par4;
043                    int var10 = 2 - var9;
044    
045                    for (int var11 = par3 - var10; var11 <= par3 + var10; ++var11)
046                    {
047                        int var12 = var11 - par3;
048    
049                        for (int var13 = par5 - var10; var13 <= par5 + var10; ++var13)
050                        {
051                            int var14 = var13 - par5;
052    
053                            block = Block.blocksList[par1World.getBlockId(var11, var8, var13)];
054    
055                            if ((Math.abs(var12) != var10 || Math.abs(var14) != var10 || par2Random.nextInt(2) != 0) && 
056                                (block == null || block.canBeReplacedByLeaves(par1World, var11, var8, var13)))
057                            {
058                                this.setBlockAndMetadata(par1World, var11, var8, var13, Block.leaves.blockID, this.field_76527_a);
059                            }
060                        }
061                    }
062                }
063            }
064    
065            return true;
066        }
067    }