    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 BlockLog extends Block
    009    {
    010        /** The type of tree this log came from. */
    011        public static final String[] woodType = new String[] {"oak", "spruce", "birch", "jungle"};
    012
    013        protected BlockLog(int par1)
    014        {
    015            super(par1, Material.wood);
    016            this.blockIndexInTexture = 20;
    017            this.setCreativeTab(CreativeTabs.tabBlock);
    018        }
    019
    020        /**
    021         * The type of render function that is called for this block
    022         */
    023        public int getRenderType()
    024        {
    025            return 31;
    026        }
    027
    028        /**
    029         * Returns the quantity of items to drop on block destruction.
    030         */
    031        public int quantityDropped(Random par1Random)
    032        {
    033            return 1;
    034        }
    035
    036        /**
    037         * Returns the ID of the items to drop on destruction.
    038         */
    039        public int idDropped(int par1, Random par2Random, int par3)
    040        {
    041            return Block.wood.blockID;
    042        }
    043
    044        /**
    045         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    046         */
    047        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    048        {
    049            byte var7 = 4;
    050            int var8 = var7 + 1;
    051
    052            if (par1World.checkChunksExist(par2 - var8, par3 - var8, par4 - var8, par2 + var8, par3 + var8, par4 + var8))
    053            {
    054                for (int var9 = -var7; var9 <= var7; ++var9)
    055                {
    056                    for (int var10 = -var7; var10 <= var7; ++var10)
    057                    {
    058                        for (int var11 = -var7; var11 <= var7; ++var11)
    059                        {
    060                            int var12 = par1World.getBlockId(par2 + var9, par3 + var10, par4 + var11);
    061
    062                            if (Block.blocksList[var12] != null)
    063                            {
    064                                Block.blocksList[var12].beginLeavesDecay(par1World, par2 + var9, par3 + var10, par4 + var11);
    065                            }
    066                        }
    067                    }
    068                }
    069            }
    070        }
    071
    072        /**
    073         * called before onBlockPlacedBy by ItemBlock and ItemReed
    074         */
    075        public void updateBlockMetadata(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8)
    076        {
    077            int var9 = par1World.getBlockMetadata(par2, par3, par4) & 3;
    078            byte var10 = 0;
    079
    080            switch (par5)
    081            {
    082                case 0:
    083                case 1:
    084                    var10 = 0;
    085                    break;
    086                case 2:
    087                case 3:
    088                    var10 = 8;
    089                    break;
    090                case 4:
    091                case 5:
    092                    var10 = 4;
    093            }
    094
    095            par1World.setBlockMetadataWithNotify(par2, par3, par4, var9 | var10);
    096        }
    097
    098        /**
    099         * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
    100         */
    101        public int getBlockTextureFromSideAndMetadata(int par1, int par2)
    102        {
    103            int var3 = par2 & 12;
    104            int var4 = par2 & 3;
    105            return var3 == 0 && (par1 == 1 || par1 == 0) ? 21 : (var3 == 4 && (par1 == 5 || par1 == 4) ? 21 : (var3 == 8 && (par1 == 2 || par1 == 3) ? 21 : (var4 == 1 ? 116 : (var4 == 2 ? 117 : (var4 == 3 ? 153 : 20)))));
    106        }
    107
    108        /**
    109         * Determines the damage on the item the block drops. Used in cloth and wood.
    110         */
    111        public int damageDropped(int par1)
    112        {
    113            return par1 & 3;
    114        }
    115
    116        /**
    117         * returns a number between 0 and 3
    118         */
    119        public static int limitToValidMetadata(int par0)
    120        {
    121            return par0 & 3;
    122        }
    123
    124        @SideOnly(Side.CLIENT)
    125
    126        /**
    127         * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
    128         */
    129        public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List par3List)
    130        {
    131            par3List.add(new ItemStack(par1, 1, 0));
    132            par3List.add(new ItemStack(par1, 1, 1));
    133            par3List.add(new ItemStack(par1, 1, 2));
    134            par3List.add(new ItemStack(par1, 1, 3));
    135        }
    136
    137        /**
    138         * Returns an item stack containing a single instance of the current block type. 'i' is the block's subtype/damage
    139         * and is ignored for blocks which do not support subtypes. Blocks which cannot be harvested should return null.
    140         */
    141        protected ItemStack createStackedBlock(int par1)
    142        {
    143            return new ItemStack(this.blockID, 1, limitToValidMetadata(par1));
    144        }
    145
    146        @Override
    147        public boolean canSustainLeaves(World world, int x, int y, int z)
    148        {
    149            return true;
    150        }
    151
    152        @Override
    153        public boolean isWood(World world, int x, int y, int z)
    154        {
    155            return true;
    156        }
    157    }