    001    package net.minecraft.block;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005    import java.util.List;
    006    import java.util.Random;
    007    import net.minecraft.block.material.Material;
    008    import net.minecraft.creativetab.CreativeTabs;
    009    import net.minecraft.entity.Entity;
    010    import net.minecraft.item.ItemStack;
    011    import net.minecraft.util.AxisAlignedBB;
    012    import net.minecraft.world.IBlockAccess;
    013    import net.minecraft.world.World;
    014
    015    public class BlockPane extends Block
    016    {
    017        /**
    018         * Holds the texture index of the side of the pane (the thin lateral side)
    019         */
    020        private int sideTextureIndex;
    021
    022        /**
    023         * If this field is true, the pane block drops itself when destroyed (like the iron fences), otherwise, it's just
    024         * destroyed (like glass panes)
    025         */
    026        private final boolean canDropItself;
    027
    028        protected BlockPane(int par1, int par2, int par3, Material par4Material, boolean par5)
    029        {
    030            super(par1, par2, par4Material);
    031            this.sideTextureIndex = par3;
    032            this.canDropItself = par5;
    033            this.setCreativeTab(CreativeTabs.tabDecorations);
    034        }
    035
    036        /**
    037         * Returns the ID of the items to drop on destruction.
    038         */
    039        public int idDropped(int par1, Random par2Random, int par3)
    040        {
    041            return !this.canDropItself ? 0 : super.idDropped(par1, par2Random, par3);
    042        }
    043
    044        /**
    045         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    046         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    047         */
    048        public boolean isOpaqueCube()
    049        {
    050            return false;
    051        }
    052
    053        /**
    054         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    055         */
    056        public boolean renderAsNormalBlock()
    057        {
    058            return false;
    059        }
    060
    061        /**
    062         * The type of render function that is called for this block
    063         */
    064        public int getRenderType()
    065        {
    066            return 18;
    067        }
    068
    069        @SideOnly(Side.CLIENT)
    070
    071        /**
    072         * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
    073         * coordinates.  Args: blockAccess, x, y, z, side
    074         */
    075        public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    076        {
    077            int var6 = par1IBlockAccess.getBlockId(par2, par3, par4);
    078            return var6 == this.blockID ? false : super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5);
    079        }
    080
    081        /**
    082         * if the specified block is in the given AABB, add its collision bounding box to the given list
    083         */
    084        public void addCollidingBlockToList(World par1World, int par2, int par3, int par4, AxisAlignedBB par5AxisAlignedBB, List par6List, Entity par7Entity)
    085        {
    086            boolean var8 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2, par3, par4 - 1));
    087            boolean var9 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2, par3, par4 + 1));
    088            boolean var10 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2 - 1, par3, par4));
    089            boolean var11 = this.canThisPaneConnectToThisBlockID(par1World.getBlockId(par2 + 1, par3, par4));
    090
    091            if ((!var10 || !var11) && (var10 || var11 || var8 || var9))
    092            {
    093                if (var10 && !var11)
    094                {
    095                    this.setBlockBounds(0.0F, 0.0F, 0.4375F, 0.5F, 1.0F, 0.5625F);
    096                    super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    097                }
    098                else if (!var10 && var11)
    099                {
    100                    this.setBlockBounds(0.5F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
    101                    super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    102                }
    103            }
    104            else
    105            {
    106                this.setBlockBounds(0.0F, 0.0F, 0.4375F, 1.0F, 1.0F, 0.5625F);
    107                super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    108            }
    109
    110            if ((!var8 || !var9) && (var10 || var11 || var8 || var9))
    111            {
    112                if (var8 && !var9)
    113                {
    114                    this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 0.5F);
    115                    super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    116                }
    117                else if (!var8 && var9)
    118                {
    119                    this.setBlockBounds(0.4375F, 0.0F, 0.5F, 0.5625F, 1.0F, 1.0F);
    120                    super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    121                }
    122            }
    123            else
    124            {
    125                this.setBlockBounds(0.4375F, 0.0F, 0.0F, 0.5625F, 1.0F, 1.0F);
    126                super.addCollidingBlockToList(par1World, par2, par3, par4, par5AxisAlignedBB, par6List, par7Entity);
    127            }
    128        }
    129
    130        /**
    131         * Sets the block's bounds for rendering it as an item
    132         */
    133        public void setBlockBoundsForItemRender()
    134        {
    135            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
    136        }
    137
    138        /**
    139         * Updates the blocks bounds based on its current state. Args: world, x, y, z
    140         */
    141        public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    142        {
    143            float var5 = 0.4375F;
    144            float var6 = 0.5625F;
    145            float var7 = 0.4375F;
    146            float var8 = 0.5625F;
    147            boolean var9 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2, par3, par4 - 1));
    148            boolean var10 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2, par3, par4 + 1));
    149            boolean var11 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2 - 1, par3, par4));
    150            boolean var12 = this.canThisPaneConnectToThisBlockID(par1IBlockAccess.getBlockId(par2 + 1, par3, par4));
    151
    152            if ((!var11 || !var12) && (var11 || var12 || var9 || var10))
    153            {
    154                if (var11 && !var12)
    155                {
    156                    var5 = 0.0F;
    157                }
    158                else if (!var11 && var12)
    159                {
    160                    var6 = 1.0F;
    161                }
    162            }
    163            else
    164            {
    165                var5 = 0.0F;
    166                var6 = 1.0F;
    167            }
    168
    169            if ((!var9 || !var10) && (var11 || var12 || var9 || var10))
    170            {
    171                if (var9 && !var10)
    172                {
    173                    var7 = 0.0F;
    174                }
    175                else if (!var9 && var10)
    176                {
    177                    var8 = 1.0F;
    178                }
    179            }
    180            else
    181            {
    182                var7 = 0.0F;
    183                var8 = 1.0F;
    184            }
    185
    186            this.setBlockBounds(var5, 0.0F, var7, var6, 1.0F, var8);
    187        }
    188
    189        @SideOnly(Side.CLIENT)
    190
    191        /**
    192         * Returns the texture index of the thin side of the pane.
    193         */
    194        public int getSideTextureIndex()
    195        {
    196            return this.sideTextureIndex;
    197        }
    198
    199        /**
    200         * Gets passed in the blockID of the block adjacent and supposed to return true if its allowed to connect to the
    201         * type of blockID passed in. Args: blockID
    202         */
    203        public final boolean canThisPaneConnectToThisBlockID(int par1)
    204        {
    205            return Block.opaqueCubeLookup[par1] || par1 == this.blockID || par1 == Block.glass.blockID;
    206        }
    207
    208        /**
    209         * Return true if a player with Silk Touch can harvest this block directly, and not its normal drops.
    210         */
    211        protected boolean canSilkHarvest()
    212        {
    213            return true;
    214        }
    215
    216        /**
    217         * Returns an item stack containing a single instance of the current block type. 'i' is the block's subtype/damage
    218         * and is ignored for blocks which do not support subtypes. Blocks which cannot be harvested should return null.
    219         */
    220        protected ItemStack createStackedBlock(int par1)
    221        {
    222            return new ItemStack(this.blockID, 1, par1);
    223        }
    224    }