001    package net.minecraft.src;
002    
003    import cpw.mods.fml.common.Side;
004    import cpw.mods.fml.common.asm.SideOnly;
005    
006    public class BlockFenceGate extends BlockDirectional
007    {
008        public BlockFenceGate(int par1, int par2)
009        {
010            super(par1, par2, Material.wood);
011            this.setCreativeTab(CreativeTabs.tabRedstone);
012        }
013    
014        /**
015         * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
016         */
017        public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
018        {
019            return !par1World.getBlockMaterial(par2, par3 - 1, par4).isSolid() ? false : super.canPlaceBlockAt(par1World, par2, par3, par4);
020        }
021    
022        /**
023         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
024         * cleared to be reused)
025         */
026        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
027        {
028            int var5 = par1World.getBlockMetadata(par2, par3, par4);
029            return isFenceGateOpen(var5) ? null : (var5 != 2 && var5 != 0 ? AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)((float)par2 + 0.375F), (double)par3, (double)par4, (double)((float)par2 + 0.625F), (double)((float)par3 + 1.5F), (double)(par4 + 1)) : AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)par2, (double)par3, (double)((float)par4 + 0.375F), (double)(par2 + 1), (double)((float)par3 + 1.5F), (double)((float)par4 + 0.625F)));
030        }
031    
032        /**
033         * Updates the blocks bounds based on its current state. Args: world, x, y, z
034         */
035        public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
036        {
037            int var5 = getDirection(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
038    
039            if (var5 != 2 && var5 != 0)
040            {
041                this.setBlockBounds(0.375F, 0.0F, 0.0F, 0.625F, 1.0F, 1.0F);
042            }
043            else
044            {
045                this.setBlockBounds(0.0F, 0.0F, 0.375F, 1.0F, 1.0F, 0.625F);
046            }
047        }
048    
049        /**
050         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
051         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
052         */
053        public boolean isOpaqueCube()
054        {
055            return false;
056        }
057    
058        /**
059         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
060         */
061        public boolean renderAsNormalBlock()
062        {
063            return false;
064        }
065    
066        public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
067        {
068            return isFenceGateOpen(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
069        }
070    
071        /**
072         * The type of render function that is called for this block
073         */
074        public int getRenderType()
075        {
076            return 21;
077        }
078    
079        /**
080         * Called when the block is placed in the world.
081         */
082        public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving)
083        {
084            int var6 = (MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3) % 4;
085            par1World.setBlockMetadataWithNotify(par2, par3, par4, var6);
086        }
087    
088        /**
089         * Called upon block activation (right click on the block.)
090         */
091        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
092        {
093            int var10 = par1World.getBlockMetadata(par2, par3, par4);
094    
095            if (isFenceGateOpen(var10))
096            {
097                par1World.setBlockMetadataWithNotify(par2, par3, par4, var10 & -5);
098            }
099            else
100            {
101                int var11 = (MathHelper.floor_double((double)(par5EntityPlayer.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3) % 4;
102                int var12 = getDirection(var10);
103    
104                if (var12 == (var11 + 2) % 4)
105                {
106                    var10 = var11;
107                }
108    
109                par1World.setBlockMetadataWithNotify(par2, par3, par4, var10 | 4);
110            }
111    
112            par1World.playAuxSFXAtEntity(par5EntityPlayer, 1003, par2, par3, par4, 0);
113            return true;
114        }
115    
116        /**
117         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
118         * their own) Args: x, y, z, neighbor blockID
119         */
120        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
121        {
122            if (!par1World.isRemote)
123            {
124                int var6 = par1World.getBlockMetadata(par2, par3, par4);
125                boolean var7 = par1World.isBlockIndirectlyGettingPowered(par2, par3, par4);
126    
127                if (var7 || par5 > 0 && Block.blocksList[par5].canProvidePower() || par5 == 0)
128                {
129                    if (var7 && !isFenceGateOpen(var6))
130                    {
131                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 4);
132                        par1World.playAuxSFXAtEntity((EntityPlayer)null, 1003, par2, par3, par4, 0);
133                    }
134                    else if (!var7 && isFenceGateOpen(var6))
135                    {
136                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 & -5);
137                        par1World.playAuxSFXAtEntity((EntityPlayer)null, 1003, par2, par3, par4, 0);
138                    }
139                }
140            }
141        }
142    
143        /**
144         * Returns if the fence gate is open according to its metadata.
145         */
146        public static boolean isFenceGateOpen(int par0)
147        {
148            return (par0 & 4) != 0;
149        }
150    
151        @SideOnly(Side.CLIENT)
152    
153        /**
154         * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
155         * coordinates.  Args: blockAccess, x, y, z, side
156         */
157        public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
158        {
159            return true;
160        }
161    }