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