    001    package net.minecraft.src;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import cpw.mods.fml.common.registry.GameRegistry;
    006
    007    import java.util.Random;
    008
    009    public class BlockDispenser extends BlockContainer
    010    {
    011        public static final IRegistry field_82527_a = new RegistryDefaulted(new BehaviorDefaultDispenseItem());
    012        private Random random = new Random();
    013
    014        protected BlockDispenser(int par1)
    015        {
    016            super(par1, Material.rock);
    017            this.blockIndexInTexture = 45;
    018            this.setCreativeTab(CreativeTabs.tabRedstone);
    019        }
    020
    021        /**
    022         * How many world ticks before ticking
    023         */
    024        public int tickRate()
    025        {
    026            return 4;
    027        }
    028
    029        /**
    030         * Returns the ID of the items to drop on destruction.
    031         */
    032        public int idDropped(int par1, Random par2Random, int par3)
    033        {
    034            return Block.dispenser.blockID;
    035        }
    036
    037        /**
    038         * Called whenever the block is added into the world. Args: world, x, y, z
    039         */
    040        public void onBlockAdded(World par1World, int par2, int par3, int par4)
    041        {
    042            super.onBlockAdded(par1World, par2, par3, par4);
    043            this.setDispenserDefaultDirection(par1World, par2, par3, par4);
    044        }
    045
    046        /**
    047         * sets Dispenser block direction so that the front faces an non-opaque block; chooses west to be direction if all
    048         * surrounding blocks are opaque.
    049         */
    050        private void setDispenserDefaultDirection(World par1World, int par2, int par3, int par4)
    051        {
    052            if (!par1World.isRemote)
    053            {
    054                int var5 = par1World.getBlockId(par2, par3, par4 - 1);
    055                int var6 = par1World.getBlockId(par2, par3, par4 + 1);
    056                int var7 = par1World.getBlockId(par2 - 1, par3, par4);
    057                int var8 = par1World.getBlockId(par2 + 1, par3, par4);
    058                byte var9 = 3;
    059
    060                if (Block.opaqueCubeLookup[var5] && !Block.opaqueCubeLookup[var6])
    061                {
    062                    var9 = 3;
    063                }
    064
    065                if (Block.opaqueCubeLookup[var6] && !Block.opaqueCubeLookup[var5])
    066                {
    067                    var9 = 2;
    068                }
    069
    070                if (Block.opaqueCubeLookup[var7] && !Block.opaqueCubeLookup[var8])
    071                {
    072                    var9 = 5;
    073                }
    074
    075                if (Block.opaqueCubeLookup[var8] && !Block.opaqueCubeLookup[var7])
    076                {
    077                    var9 = 4;
    078                }
    079
    080                par1World.setBlockMetadataWithNotify(par2, par3, par4, var9);
    081            }
    082        }
    083
    084        @SideOnly(Side.CLIENT)
    085
    086        /**
    087         * Retrieves the block texture to use based on the display side. Args: iBlockAccess, x, y, z, side
    088         */
    089        public int getBlockTexture(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    090        {
    091            if (par5 == 1)
    092            {
    093                return this.blockIndexInTexture + 17;
    094            }
    095            else if (par5 == 0)
    096            {
    097                return this.blockIndexInTexture + 17;
    098            }
    099            else
    100            {
    101                int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    102                return par5 == var6 ? this.blockIndexInTexture + 1 : this.blockIndexInTexture;
    103            }
    104        }
    105
    106        /**
    107         * Returns the block texture based on the side being looked at.  Args: side
    108         */
    109        public int getBlockTextureFromSide(int par1)
    110        {
    111            return par1 == 1 ? this.blockIndexInTexture + 17 : (par1 == 0 ? this.blockIndexInTexture + 17 : (par1 == 3 ? this.blockIndexInTexture + 1 : this.blockIndexInTexture));
    112        }
    113
    114        /**
    115         * Called upon block activation (right click on the block.)
    116         */
    117        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    118        {
    119            if (par1World.isRemote)
    120            {
    121                return true;
    122            }
    123            else
    124            {
    125                TileEntityDispenser var10 = (TileEntityDispenser)par1World.getBlockTileEntity(par2, par3, par4);
    126
    127                if (var10 != null)
    128                {
    129                    par5EntityPlayer.displayGUIDispenser(var10);
    130                }
    131
    132                return true;
    133            }
    134        }
    135
    136        private void func_82526_n(World par1World, int par2, int par3, int par4)
    137        {
    138            BlockSourceImpl var5 = new BlockSourceImpl(par1World, par2, par3, par4);
    139            TileEntityDispenser var6 = (TileEntityDispenser)var5.func_82619_j();
    140
    141            if (var6 != null)
    142            {
    143                int var7 = var6.getRandomStackFromInventory();
    144
    145                if (var7 < 0)
    146                {
    147                    par1World.playAuxSFX(1001, par2, par3, par4, 0);
    148                }
    149                else
    150                {
    151                    ItemStack var8 = var6.getStackInSlot(var7);
    152                    IBehaviorDispenseItem var9 = (IBehaviorDispenseItem)field_82527_a.func_82594_a(var8.getItem());
    153
    154                    if (var9 != IBehaviorDispenseItem.field_82483_a)
    155                    {
    156                        ItemStack var10 = var9.func_82482_a(var5, var8);
    157                        var6.setInventorySlotContents(var7, var10.stackSize == 0 ? null : var10);
    158                    }
    159                }
    160            }
    161        }
    162
    163        /**
    164         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    165         * their own) Args: x, y, z, neighbor blockID
    166         */
    167        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    168        {
    169            if (par5 > 0 && Block.blocksList[par5].canProvidePower())
    170            {
    171                boolean var6 = par1World.isBlockIndirectlyGettingPowered(par2, par3, par4) || par1World.isBlockIndirectlyGettingPowered(par2, par3 + 1, par4);
    172
    173                if (var6)
    174                {
    175                    par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    176                }
    177            }
    178        }
    179
    180        /**
    181         * Ticks the block if it's been scheduled
    182         */
    183        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    184        {
    185            if (!par1World.isRemote && (par1World.isBlockIndirectlyGettingPowered(par2, par3, par4) || par1World.isBlockIndirectlyGettingPowered(par2, par3 + 1, par4)))
    186            {
    187                this.func_82526_n(par1World, par2, par3, par4);
    188            }
    189        }
    190
    191        /**
    192         * Returns a new instance of a block's tile entity class. Called on placing the block.
    193         */
    194        public TileEntity createNewTileEntity(World par1World)
    195        {
    196            return new TileEntityDispenser();
    197        }
    198
    199        /**
    200         * Called when the block is placed in the world.
    201         */
    202        public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving)
    203        {
    204            int var6 = MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3;
    205
    206            if (var6 == 0)
    207            {
    208                par1World.setBlockMetadataWithNotify(par2, par3, par4, 2);
    209            }
    210
    211            if (var6 == 1)
    212            {
    213                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5);
    214            }
    215
    216            if (var6 == 2)
    217            {
    218                par1World.setBlockMetadataWithNotify(par2, par3, par4, 3);
    219            }
    220
    221            if (var6 == 3)
    222            {
    223                par1World.setBlockMetadataWithNotify(par2, par3, par4, 4);
    224            }
    225        }
    226
    227        /**
    228         * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    229         */
    230        public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    231        {
    232            TileEntityDispenser var7 = (TileEntityDispenser)par1World.getBlockTileEntity(par2, par3, par4);
    233
    234            if (var7 != null)
    235            {
    236                for (int var8 = 0; var8 < var7.getSizeInventory(); ++var8)
    237                {
    238                    ItemStack var9 = var7.getStackInSlot(var8);
    239
    240                    if (var9 != null)
    241                    {
    242                        float var10 = this.random.nextFloat() * 0.8F + 0.1F;
    243                        float var11 = this.random.nextFloat() * 0.8F + 0.1F;
    244                        float var12 = this.random.nextFloat() * 0.8F + 0.1F;
    245
    246                        while (var9.stackSize > 0)
    247                        {
    248                            int var13 = this.random.nextInt(21) + 10;
    249
    250                            if (var13 > var9.stackSize)
    251                            {
    252                                var13 = var9.stackSize;
    253                            }
    254
    255                            var9.stackSize -= var13;
    256                            EntityItem var14 = new EntityItem(par1World, (double)((float)par2 + var10), (double)((float)par3 + var11), (double)((float)par4 + var12), new ItemStack(var9.itemID, var13, var9.getItemDamage()));
    257
    258                            if (var9.hasTagCompound())
    259                            {
    260                                var14.item.setTagCompound((NBTTagCompound)var9.getTagCompound().copy());
    261                            }
    262
    263                            float var15 = 0.05F;
    264                            var14.motionX = (double)((float)this.random.nextGaussian() * var15);
    265                            var14.motionY = (double)((float)this.random.nextGaussian() * var15 + 0.2F);
    266                            var14.motionZ = (double)((float)this.random.nextGaussian() * var15);
    267                            par1World.spawnEntityInWorld(var14);
    268                        }
    269                    }
    270                }
    271            }
    272
    273            super.breakBlock(par1World, par2, par3, par4, par5, par6);
    274        }
    275
    276        public static IPosition func_82525_a(IBlockSource par0IBlockSource)
    277        {
    278            EnumFacing var1 = EnumFacing.func_82600_a(par0IBlockSource.func_82620_h());
    279            double var2 = par0IBlockSource.func_82615_a() + 0.6D * (double)var1.func_82601_c();
    280            double var4 = par0IBlockSource.func_82617_b();
    281            double var6 = par0IBlockSource.func_82616_c() + 0.6D * (double)var1.func_82599_e();
    282            return new PositionImpl(var2, var4, var6);
    283        }
    284    }