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    
007    public class ItemBlock extends Item
008    {
009        /** The block ID of the Block associated with this ItemBlock */
010        private int blockID;
011    
012        public ItemBlock(int par1)
013        {
014            super(par1);
015            this.blockID = par1 + 256;
016            this.setIconIndex(Block.blocksList[par1 + 256].getBlockTextureFromSide(2));
017            isDefaultTexture = Block.blocksList[par1 + 256].isDefaultTexture;
018        }
019    
020        /**
021         * Returns the blockID for this Item
022         */
023        public int getBlockID()
024        {
025            return this.blockID;
026        }
027    
028        /**
029         * Callback for item usage. If the item does something special on right clicking, he will have one of those. Return
030         * True if something happen and false if it don't. This is for ITEMS, not BLOCKS
031         */
032        public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, World par3World, int par4, int par5, int par6, int par7, float par8, float par9, float par10)
033        {
034            int var11 = par3World.getBlockId(par4, par5, par6);
035    
036            if (var11 == Block.snow.blockID)
037            {
038                par7 = 1;
039            }
040            else if (var11 != Block.vine.blockID && var11 != Block.tallGrass.blockID && var11 != Block.deadBush.blockID
041                    && (Block.blocksList[var11] == null || !Block.blocksList[var11].isBlockReplaceable(par3World, par4, par5, par6)))
042            {
043                if (par7 == 0)
044                {
045                    --par5;
046                }
047    
048                if (par7 == 1)
049                {
050                    ++par5;
051                }
052    
053                if (par7 == 2)
054                {
055                    --par6;
056                }
057    
058                if (par7 == 3)
059                {
060                    ++par6;
061                }
062    
063                if (par7 == 4)
064                {
065                    --par4;
066                }
067    
068                if (par7 == 5)
069                {
070                    ++par4;
071                }
072            }
073    
074            if (par1ItemStack.stackSize == 0)
075            {
076                return false;
077            }
078            else if (!par2EntityPlayer.canPlayerEdit(par4, par5, par6, par7, par1ItemStack))
079            {
080                return false;
081            }
082            else if (par5 == 255 && Block.blocksList[this.blockID].blockMaterial.isSolid())
083            {
084                return false;
085            }
086            else if (par3World.canPlaceEntityOnSide(this.blockID, par4, par5, par6, false, par7, par2EntityPlayer))
087            {
088                Block var12 = Block.blocksList[this.blockID];
089                int var13 = this.getMetadata(par1ItemStack.getItemDamage());
090                int var14 = Block.blocksList[this.blockID].func_85104_a(par3World, par4, par5, par6, par7, par8, par9, par10, var13);
091    
092                if (placeBlockAt(par1ItemStack, par2EntityPlayer, par3World, par4, par5, par6, par7, par8, par9, par10, var14))
093                {
094                    par3World.playSoundEffect((double)((float)par4 + 0.5F), (double)((float)par5 + 0.5F), (double)((float)par6 + 0.5F), var12.stepSound.getPlaceSound(), (var12.stepSound.getVolume() + 1.0F) / 2.0F, var12.stepSound.getPitch() * 0.8F);
095                    --par1ItemStack.stackSize;
096                }
097    
098                return true;
099            }
100            else
101            {
102                return false;
103            }
104        }
105    
106        @SideOnly(Side.CLIENT)
107    
108        /**
109         * Returns true if the given ItemBlock can be placed on the given side of the given block position.
110         */
111        public boolean canPlaceItemBlockOnSide(World par1World, int par2, int par3, int par4, int par5, EntityPlayer par6EntityPlayer, ItemStack par7ItemStack)
112        {
113            int var8 = par1World.getBlockId(par2, par3, par4);
114    
115            if (var8 == Block.snow.blockID)
116            {
117                par5 = 1;
118            }
119            else if (var8 != Block.vine.blockID && var8 != Block.tallGrass.blockID && var8 != Block.deadBush.blockID
120                    && (Block.blocksList[var8] == null || !Block.blocksList[var8].isBlockReplaceable(par1World, par2, par3, par4)))
121            {
122                if (par5 == 0)
123                {
124                    --par3;
125                }
126    
127                if (par5 == 1)
128                {
129                    ++par3;
130                }
131    
132                if (par5 == 2)
133                {
134                    --par4;
135                }
136    
137                if (par5 == 3)
138                {
139                    ++par4;
140                }
141    
142                if (par5 == 4)
143                {
144                    --par2;
145                }
146    
147                if (par5 == 5)
148                {
149                    ++par2;
150                }
151            }
152    
153            return par1World.canPlaceEntityOnSide(this.getBlockID(), par2, par3, par4, false, par5, (Entity)null);
154        }
155    
156        public String getItemNameIS(ItemStack par1ItemStack)
157        {
158            return Block.blocksList[this.blockID].getBlockName();
159        }
160    
161        public String getItemName()
162        {
163            return Block.blocksList[this.blockID].getBlockName();
164        }
165    
166        @SideOnly(Side.CLIENT)
167    
168        /**
169         * gets the CreativeTab this item is displayed on
170         */
171        public CreativeTabs getCreativeTab()
172        {
173            return Block.blocksList[this.blockID].getCreativeTabToDisplayOn();
174        }
175    
176        @SideOnly(Side.CLIENT)
177    
178        /**
179         * returns a list of items with the same ID, but different meta (eg: dye returns 16 items)
180         */
181        public void getSubItems(int par1, CreativeTabs par2CreativeTabs, List par3List)
182        {
183            Block.blocksList[this.blockID].getSubBlocks(par1, par2CreativeTabs, par3List);
184        }
185    
186        /**
187         * Called to actually place the block, after the location is determined
188         * and all permission checks have been made.
189         *
190         * @param stack The item stack that was used to place the block. This can be changed inside the method.
191         * @param player The player who is placing the block. Can be null if the block is not being placed by a player.
192         * @param side The side the player (or machine) right-clicked on.
193         */
194        public boolean placeBlockAt(ItemStack stack, EntityPlayer player, World world, int x, int y, int z, int side, float hitX, float hitY, float hitZ, int metadata)
195        {
196           if (!world.setBlockAndMetadataWithNotify(x, y, z, this.blockID, metadata))
197           {
198                   return false;
199           }
200    
201           if (world.getBlockId(x, y, z) == this.blockID)
202           {
203               Block.blocksList[this.blockID].onBlockPlacedBy(world, x, y, z, player);
204               Block.blocksList[this.blockID].func_85105_g(world, x, y, z, metadata);
205           }
206    
207           return true;
208        }
209    }