001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    import java.util.List;
006    import java.util.Random;
007    
008    public class BlockSapling extends BlockFlower
009    {
010        public static final String[] field_72270_a = new String[] {"oak", "spruce", "birch", "jungle"};
011    
012        protected BlockSapling(int par1, int par2)
013        {
014            super(par1, par2);
015            float var3 = 0.4F;
016            this.setBlockBounds(0.5F - var3, 0.0F, 0.5F - var3, 0.5F + var3, var3 * 2.0F, 0.5F + var3);
017            this.setCreativeTab(CreativeTabs.tabDeco);
018        }
019    
020        /**
021         * Ticks the block if it's been scheduled
022         */
023        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
024        {
025            if (!par1World.isRemote)
026            {
027                super.updateTick(par1World, par2, par3, par4, par5Random);
028    
029                if (par1World.getBlockLightValue(par2, par3 + 1, par4) >= 9 && par5Random.nextInt(7) == 0)
030                {
031                    int var6 = par1World.getBlockMetadata(par2, par3, par4);
032    
033                    if ((var6 & 8) == 0)
034                    {
035                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 8);
036                    }
037                    else
038                    {
039                        this.growTree(par1World, par2, par3, par4, par5Random);
040                    }
041                }
042            }
043        }
044    
045        /**
046         * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
047         */
048        public int getBlockTextureFromSideAndMetadata(int par1, int par2)
049        {
050            par2 &= 3;
051            return par2 == 1 ? 63 : (par2 == 2 ? 79 : (par2 == 3 ? 30 : super.getBlockTextureFromSideAndMetadata(par1, par2)));
052        }
053    
054        /**
055         * Attempts to grow a sapling into a tree
056         */
057        public void growTree(World par1World, int par2, int par3, int par4, Random par5Random)
058        {
059            int var6 = par1World.getBlockMetadata(par2, par3, par4) & 3;
060            Object var7 = null;
061            int var8 = 0;
062            int var9 = 0;
063            boolean var10 = false;
064    
065            if (var6 == 1)
066            {
067                var7 = new WorldGenTaiga2(true);
068            }
069            else if (var6 == 2)
070            {
071                var7 = new WorldGenForest(true);
072            }
073            else if (var6 == 3)
074            {
075                for (var8 = 0; var8 >= -1; --var8)
076                {
077                    for (var9 = 0; var9 >= -1; --var9)
078                    {
079                        if (this.isSameSapling(par1World, par2 + var8, par3, par4 + var9, 3) && this.isSameSapling(par1World, par2 + var8 + 1, par3, par4 + var9, 3) && this.isSameSapling(par1World, par2 + var8, par3, par4 + var9 + 1, 3) && this.isSameSapling(par1World, par2 + var8 + 1, par3, par4 + var9 + 1, 3))
080                        {
081                            var7 = new WorldGenHugeTrees(true, 10 + par5Random.nextInt(20), 3, 3);
082                            var10 = true;
083                            break;
084                        }
085                    }
086    
087                    if (var7 != null)
088                    {
089                        break;
090                    }
091                }
092    
093                if (var7 == null)
094                {
095                    var9 = 0;
096                    var8 = 0;
097                    var7 = new WorldGenTrees(true, 4 + par5Random.nextInt(7), 3, 3, false);
098                }
099            }
100            else
101            {
102                var7 = new WorldGenTrees(true);
103    
104                if (par5Random.nextInt(10) == 0)
105                {
106                    var7 = new WorldGenBigTree(true);
107                }
108            }
109    
110            if (var10)
111            {
112                par1World.setBlock(par2 + var8, par3, par4 + var9, 0);
113                par1World.setBlock(par2 + var8 + 1, par3, par4 + var9, 0);
114                par1World.setBlock(par2 + var8, par3, par4 + var9 + 1, 0);
115                par1World.setBlock(par2 + var8 + 1, par3, par4 + var9 + 1, 0);
116            }
117            else
118            {
119                par1World.setBlock(par2, par3, par4, 0);
120            }
121    
122            if (!((WorldGenerator)var7).generate(par1World, par5Random, par2 + var8, par3, par4 + var9))
123            {
124                if (var10)
125                {
126                    par1World.setBlockAndMetadata(par2 + var8, par3, par4 + var9, this.blockID, var6);
127                    par1World.setBlockAndMetadata(par2 + var8 + 1, par3, par4 + var9, this.blockID, var6);
128                    par1World.setBlockAndMetadata(par2 + var8, par3, par4 + var9 + 1, this.blockID, var6);
129                    par1World.setBlockAndMetadata(par2 + var8 + 1, par3, par4 + var9 + 1, this.blockID, var6);
130                }
131                else
132                {
133                    par1World.setBlockAndMetadata(par2, par3, par4, this.blockID, var6);
134                }
135            }
136        }
137    
138        /**
139         * Determines if the same sapling is present at the given location.
140         */
141        public boolean isSameSapling(World par1World, int par2, int par3, int par4, int par5)
142        {
143            return par1World.getBlockId(par2, par3, par4) == this.blockID && (par1World.getBlockMetadata(par2, par3, par4) & 3) == par5;
144        }
145    
146        /**
147         * Determines the damage on the item the block drops. Used in cloth and wood.
148         */
149        protected int damageDropped(int par1)
150        {
151            return par1 & 3;
152        }
153    
154        @SideOnly(Side.CLIENT)
155    
156        /**
157         * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
158         */
159        public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List par3List)
160        {
161            par3List.add(new ItemStack(par1, 1, 0));
162            par3List.add(new ItemStack(par1, 1, 1));
163            par3List.add(new ItemStack(par1, 1, 2));
164            par3List.add(new ItemStack(par1, 1, 3));
165        }
166    }