001    package net.minecraft.block;
002    
003    import cpw.mods.fml.relauncher.Side;
004    import cpw.mods.fml.relauncher.SideOnly;
005    import net.minecraft.block.material.Material;
006    import net.minecraft.creativetab.CreativeTabs;
007    import net.minecraft.entity.EntityLiving;
008    import net.minecraft.entity.player.EntityPlayer;
009    import net.minecraft.util.AxisAlignedBB;
010    import net.minecraft.util.MathHelper;
011    import net.minecraft.world.IBlockAccess;
012    import net.minecraft.world.World;
013    
014    public class BlockFenceGate extends BlockDirectional
015    {
016        public BlockFenceGate(int par1, int par2)
017        {
018            super(par1, par2, Material.wood);
019            this.setCreativeTab(CreativeTabs.tabRedstone);
020        }
021    
022        /**
023         * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
024         */
025        public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
026        {
027            return !par1World.getBlockMaterial(par2, par3 - 1, par4).isSolid() ? false : super.canPlaceBlockAt(par1World, par2, par3, par4);
028        }
029    
030        /**
031         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
032         * cleared to be reused)
033         */
034        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
035        {
036            int var5 = par1World.getBlockMetadata(par2, par3, par4);
037            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)));
038        }
039    
040        /**
041         * Updates the blocks bounds based on its current state. Args: world, x, y, z
042         */
043        public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
044        {
045            int var5 = getDirection(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
046    
047            if (var5 != 2 && var5 != 0)
048            {
049                this.setBlockBounds(0.375F, 0.0F, 0.0F, 0.625F, 1.0F, 1.0F);
050            }
051            else
052            {
053                this.setBlockBounds(0.0F, 0.0F, 0.375F, 1.0F, 1.0F, 0.625F);
054            }
055        }
056    
057        /**
058         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
059         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
060         */
061        public boolean isOpaqueCube()
062        {
063            return false;
064        }
065    
066        /**
067         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
068         */
069        public boolean renderAsNormalBlock()
070        {
071            return false;
072        }
073    
074        public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
075        {
076            return isFenceGateOpen(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
077        }
078    
079        /**
080         * The type of render function that is called for this block
081         */
082        public int getRenderType()
083        {
084            return 21;
085        }
086    
087        /**
088         * Called when the block is placed in the world.
089         */
090        public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving)
091        {
092            int var6 = (MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3) % 4;
093            par1World.setBlockMetadataWithNotify(par2, par3, par4, var6);
094        }
095    
096        /**
097         * Called upon block activation (right click on the block.)
098         */
099        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
100        {
101            int var10 = par1World.getBlockMetadata(par2, par3, par4);
102    
103            if (isFenceGateOpen(var10))
104            {
105                par1World.setBlockMetadataWithNotify(par2, par3, par4, var10 & -5);
106            }
107            else
108            {
109                int var11 = (MathHelper.floor_double((double)(par5EntityPlayer.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3) % 4;
110                int var12 = getDirection(var10);
111    
112                if (var12 == (var11 + 2) % 4)
113                {
114                    var10 = var11;
115                }
116    
117                par1World.setBlockMetadataWithNotify(par2, par3, par4, var10 | 4);
118            }
119    
120            par1World.playAuxSFXAtEntity(par5EntityPlayer, 1003, par2, par3, par4, 0);
121            return true;
122        }
123    
124        /**
125         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
126         * their own) Args: x, y, z, neighbor blockID
127         */
128        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
129        {
130            if (!par1World.isRemote)
131            {
132                int var6 = par1World.getBlockMetadata(par2, par3, par4);
133                boolean var7 = par1World.isBlockIndirectlyGettingPowered(par2, par3, par4);
134    
135                if (var7 || par5 > 0 && Block.blocksList[par5].canProvidePower() || par5 == 0)
136                {
137                    if (var7 && !isFenceGateOpen(var6))
138                    {
139                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 4);
140                        par1World.playAuxSFXAtEntity((EntityPlayer)null, 1003, par2, par3, par4, 0);
141                    }
142                    else if (!var7 && isFenceGateOpen(var6))
143                    {
144                        par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 & -5);
145                        par1World.playAuxSFXAtEntity((EntityPlayer)null, 1003, par2, par3, par4, 0);
146                    }
147                }
148            }
149        }
150    
151        /**
152         * Returns if the fence gate is open according to its metadata.
153         */
154        public static boolean isFenceGateOpen(int par0)
155        {
156            return (par0 & 4) != 0;
157        }
158    
159        @SideOnly(Side.CLIENT)
160    
161        /**
162         * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
163         * coordinates.  Args: blockAccess, x, y, z, side
164         */
165        public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
166        {
167            return true;
168        }
169    }