    001package net.minecraft.block;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import java.util.List;
    006import java.util.Random;
    007import net.minecraft.block.material.Material;
    008import net.minecraft.creativetab.CreativeTabs;
    009import net.minecraft.item.ItemStack;
    010import net.minecraft.world.World;
    011
    012public class BlockLog extends Block
    013{
    014    /** The type of tree this log came from. */
    015    public static final String[] woodType = new String[] {"oak", "spruce", "birch", "jungle"};
    016
    017    protected BlockLog(int par1)
    018    {
    019        super(par1, Material.wood);
    020        this.blockIndexInTexture = 20;
    021        this.setCreativeTab(CreativeTabs.tabBlock);
    022    }
    023
    024    /**
    025     * The type of render function that is called for this block
    026     */
    027    public int getRenderType()
    028    {
    029        return 31;
    030    }
    031
    032    /**
    033     * Returns the quantity of items to drop on block destruction.
    034     */
    035    public int quantityDropped(Random par1Random)
    036    {
    037        return 1;
    038    }
    039
    040    /**
    041     * Returns the ID of the items to drop on destruction.
    042     */
    043    public int idDropped(int par1, Random par2Random, int par3)
    044    {
    045        return Block.wood.blockID;
    046    }
    047
    048    /**
    049     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    050     */
    051    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    052    {
    053        byte var7 = 4;
    054        int var8 = var7 + 1;
    055
    056        if (par1World.checkChunksExist(par2 - var8, par3 - var8, par4 - var8, par2 + var8, par3 + var8, par4 + var8))
    057        {
    058            for (int var9 = -var7; var9 <= var7; ++var9)
    059            {
    060                for (int var10 = -var7; var10 <= var7; ++var10)
    061                {
    062                    for (int var11 = -var7; var11 <= var7; ++var11)
    063                    {
    064                        int var12 = par1World.getBlockId(par2 + var9, par3 + var10, par4 + var11);
    065
    066                        if (Block.blocksList[var12] != null)
    067                        {
    068                            Block.blocksList[var12].beginLeavesDecay(par1World, par2 + var9, par3 + var10, par4 + var11);
    069                        }
    070                    }
    071                }
    072            }
    073        }
    074    }
    075
    076    /**
    077     * Called when a block is placed using its ItemBlock. Args: World, X, Y, Z, side, hitX, hitY, hitZ, block metadata
    078     */
    079    public int onBlockPlaced(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
    080    {
    081        int var10 = par9 & 3;
    082        byte var11 = 0;
    083
    084        switch (par5)
    085        {
    086            case 0:
    087            case 1:
    088                var11 = 0;
    089                break;
    090            case 2:
    091            case 3:
    092                var11 = 8;
    093                break;
    094            case 4:
    095            case 5:
    096                var11 = 4;
    097        }
    098
    099        return var10 | var11;
    100    }
    101
    102    /**
    103     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
    104     */
    105    public int getBlockTextureFromSideAndMetadata(int par1, int par2)
    106    {
    107        int var3 = par2 & 12;
    108        int var4 = par2 & 3;
    109        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)))));
    110    }
    111
    112    /**
    113     * Determines the damage on the item the block drops. Used in cloth and wood.
    114     */
    115    public int damageDropped(int par1)
    116    {
    117        return par1 & 3;
    118    }
    119
    120    /**
    121     * returns a number between 0 and 3
    122     */
    123    public static int limitToValidMetadata(int par0)
    124    {
    125        return par0 & 3;
    126    }
    127
    128    @SideOnly(Side.CLIENT)
    129
    130    /**
    131     * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
    132     */
    133    public void getSubBlocks(int par1, CreativeTabs par2CreativeTabs, List par3List)
    134    {
    135        par3List.add(new ItemStack(par1, 1, 0));
    136        par3List.add(new ItemStack(par1, 1, 1));
    137        par3List.add(new ItemStack(par1, 1, 2));
    138        par3List.add(new ItemStack(par1, 1, 3));
    139    }
    140
    141    /**
    142     * Returns an item stack containing a single instance of the current block type. 'i' is the block's subtype/damage
    143     * and is ignored for blocks which do not support subtypes. Blocks which cannot be harvested should return null.
    144     */
    145    protected ItemStack createStackedBlock(int par1)
    146    {
    147        return new ItemStack(this.blockID, 1, limitToValidMetadata(par1));
    148    }
    149
    150    @Override
    151    public boolean canSustainLeaves(World world, int x, int y, int z)
    152    {
    153        return true;
    154    }
    155
    156    @Override
    157    public boolean isWood(World world, int x, int y, int z)
    158    {
    159        return true;
    160    }
    161}