    001package net.minecraft.block;
    002
    003import java.util.List;
    004import java.util.Random;
    005import net.minecraft.block.material.Material;
    006import net.minecraft.creativetab.CreativeTabs;
    007import net.minecraft.entity.Entity;
    008import net.minecraft.entity.player.EntityPlayer;
    009import net.minecraft.entity.projectile.EntityArrow;
    010import net.minecraft.util.AxisAlignedBB;
    011import net.minecraft.world.IBlockAccess;
    012import net.minecraft.world.World;
    013
    014import net.minecraftforge.common.ForgeDirection;
    015import static net.minecraftforge.common.ForgeDirection.*;
    016
    017public class BlockButton extends Block
    018{
    019    /** Whether this button is sensible to arrows, used by wooden buttons. */
    020    protected boolean sensible;
    021
    022    protected BlockButton(int par1, int par2, boolean par3)
    023    {
    024        super(par1, par2, Material.circuits);
    025        this.setTickRandomly(true);
    026        this.setCreativeTab(CreativeTabs.tabRedstone);
    027        this.sensible = par3;
    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        return null;
    037    }
    038
    039    /**
    040     * How many world ticks before ticking
    041     */
    042    public int tickRate()
    043    {
    044        return this.sensible ? 30 : 20;
    045    }
    046
    047    /**
    048     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    049     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    050     */
    051    public boolean isOpaqueCube()
    052    {
    053        return false;
    054    }
    055
    056    /**
    057     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    058     */
    059    public boolean renderAsNormalBlock()
    060    {
    061        return false;
    062    }
    063
    064    /**
    065     * checks to see if you can place this block can be placed on that side of a block: BlockLever overrides
    066     */
    067    public boolean canPlaceBlockOnSide(World par1World, int par2, int par3, int par4, int par5)
    068    {
    069        ForgeDirection dir = ForgeDirection.getOrientation(par5);
    070        return (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) ||
    071               (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) ||
    072               (dir == WEST  && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) ||
    073               (dir == EAST  && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST));
    074    }
    075
    076    /**
    077     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
    078     */
    079    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    080    {
    081        return (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST)) ||
    082               (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) ||
    083               (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) ||
    084               (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH));
    085    }
    086
    087    /**
    088     * Called when a block is placed using its ItemBlock. Args: World, X, Y, Z, side, hitX, hitY, hitZ, block metadata
    089     */
    090    public int onBlockPlaced(World par1World, int par2, int par3, int par4, int par5, float par6, float par7, float par8, int par9)
    091    {
    092        int var10 = par1World.getBlockMetadata(par2, par3, par4);
    093        int var11 = var10 & 8;
    094        var10 &= 7;
    095
    096
    097        ForgeDirection dir = ForgeDirection.getOrientation(par5);
    098
    099        if (dir == NORTH && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH))
    100        {
    101            var10 = 4;
    102        }
    103        else if (dir == SOUTH && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH))
    104        {
    105            var10 = 3;
    106        }
    107        else if (dir == WEST && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST))
    108        {
    109            var10 = 2;
    110        }
    111        else if (dir == EAST && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST))
    112        {
    113            var10 = 1;
    114        }
    115        else
    116        {
    117            var10 = this.getOrientation(par1World, par2, par3, par4);
    118        }
    119
    120        return var10 + var11;
    121    }
    122
    123    /**
    124     * Get side which this button is facing.
    125     */
    126    private int getOrientation(World par1World, int par2, int par3, int par4)
    127    {
    128        if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST)) return 1;
    129        if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST)) return 2;
    130        if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH)) return 3;
    131        if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH)) return 4;
    132        return 1;
    133    }
    134
    135    /**
    136     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    137     * their own) Args: x, y, z, neighbor blockID
    138     */
    139    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    140    {
    141        if (this.redundantCanPlaceBlockAt(par1World, par2, par3, par4))
    142        {
    143            int var6 = par1World.getBlockMetadata(par2, par3, par4) & 7;
    144            boolean var7 = false;
    145
    146            if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST) && var6 == 1)
    147            {
    148                var7 = true;
    149            }
    150
    151            if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST) && var6 == 2)
    152            {
    153                var7 = true;
    154            }
    155
    156            if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH) && var6 == 3)
    157            {
    158                var7 = true;
    159            }
    160
    161            if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH) && var6 == 4)
    162            {
    163                var7 = true;
    164            }
    165
    166            if (var7)
    167            {
    168                this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
    169                par1World.setBlockWithNotify(par2, par3, par4, 0);
    170            }
    171        }
    172    }
    173
    174    /**
    175     * This method is redundant, check it out...
    176     */
    177    private boolean redundantCanPlaceBlockAt(World par1World, int par2, int par3, int par4)
    178    {
    179        if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
    180        {
    181            this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
    182            par1World.setBlockWithNotify(par2, par3, par4, 0);
    183            return false;
    184        }
    185        else
    186        {
    187            return true;
    188        }
    189    }
    190
    191    /**
    192     * Updates the blocks bounds based on its current state. Args: world, x, y, z
    193     */
    194    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    195    {
    196        int var5 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    197        this.func_82534_e(var5);
    198    }
    199
    200    private void func_82534_e(int par1)
    201    {
    202        int var2 = par1 & 7;
    203        boolean var3 = (par1 & 8) > 0;
    204        float var4 = 0.375F;
    205        float var5 = 0.625F;
    206        float var6 = 0.1875F;
    207        float var7 = 0.125F;
    208
    209        if (var3)
    210        {
    211            var7 = 0.0625F;
    212        }
    213
    214        if (var2 == 1)
    215        {
    216            this.setBlockBounds(0.0F, var4, 0.5F - var6, var7, var5, 0.5F + var6);
    217        }
    218        else if (var2 == 2)
    219        {
    220            this.setBlockBounds(1.0F - var7, var4, 0.5F - var6, 1.0F, var5, 0.5F + var6);
    221        }
    222        else if (var2 == 3)
    223        {
    224            this.setBlockBounds(0.5F - var6, var4, 0.0F, 0.5F + var6, var5, var7);
    225        }
    226        else if (var2 == 4)
    227        {
    228            this.setBlockBounds(0.5F - var6, var4, 1.0F - var7, 0.5F + var6, var5, 1.0F);
    229        }
    230    }
    231
    232    /**
    233     * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
    234     */
    235    public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer) {}
    236
    237    /**
    238     * Called upon block activation (right click on the block.)
    239     */
    240    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    241    {
    242        int var10 = par1World.getBlockMetadata(par2, par3, par4);
    243        int var11 = var10 & 7;
    244        int var12 = 8 - (var10 & 8);
    245
    246        if (var12 == 0)
    247        {
    248            return true;
    249        }
    250        else
    251        {
    252            par1World.setBlockMetadataWithNotify(par2, par3, par4, var11 + var12);
    253            par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    254            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
    255            this.func_82536_d(par1World, par2, par3, par4, var11);
    256            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    257            return true;
    258        }
    259    }
    260
    261    /**
    262     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    263     */
    264    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    265    {
    266        if ((par6 & 8) > 0)
    267        {
    268            int var7 = par6 & 7;
    269            this.func_82536_d(par1World, par2, par3, par4, var7);
    270        }
    271
    272        super.breakBlock(par1World, par2, par3, par4, par5, par6);
    273    }
    274
    275    /**
    276     * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
    277     * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
    278     * Y, Z, side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
    279     */
    280    public boolean isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    281    {
    282        return (par1IBlockAccess.getBlockMetadata(par2, par3, par4) & 8) > 0;
    283    }
    284
    285    /**
    286     * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
    287     * side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
    288     */
    289    public boolean isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    290    {
    291        int var6 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    292
    293        if ((var6 & 8) == 0)
    294        {
    295            return false;
    296        }
    297        else
    298        {
    299            int var7 = var6 & 7;
    300            return var7 == 5 && par5 == 1 ? true : (var7 == 4 && par5 == 2 ? true : (var7 == 3 && par5 == 3 ? true : (var7 == 2 && par5 == 4 ? true : var7 == 1 && par5 == 5)));
    301        }
    302    }
    303
    304    /**
    305     * Can this block provide power. Only wire currently seems to have this change based on its state.
    306     */
    307    public boolean canProvidePower()
    308    {
    309        return true;
    310    }
    311
    312    /**
    313     * Ticks the block if it's been scheduled
    314     */
    315    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    316    {
    317        if (!par1World.isRemote)
    318        {
    319            int var6 = par1World.getBlockMetadata(par2, par3, par4);
    320
    321            if ((var6 & 8) != 0)
    322            {
    323                if (this.sensible)
    324                {
    325                    this.func_82535_o(par1World, par2, par3, par4);
    326                }
    327                else
    328                {
    329                    par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 & 7);
    330                    int var7 = var6 & 7;
    331                    this.func_82536_d(par1World, par2, par3, par4, var7);
    332                    par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
    333                    par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    334                }
    335            }
    336        }
    337    }
    338
    339    /**
    340     * Sets the block's bounds for rendering it as an item
    341     */
    342    public void setBlockBoundsForItemRender()
    343    {
    344        float var1 = 0.1875F;
    345        float var2 = 0.125F;
    346        float var3 = 0.125F;
    347        this.setBlockBounds(0.5F - var1, 0.5F - var2, 0.5F - var3, 0.5F + var1, 0.5F + var2, 0.5F + var3);
    348    }
    349
    350    /**
    351     * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
    352     */
    353    public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
    354    {
    355        if (!par1World.isRemote)
    356        {
    357            if (this.sensible)
    358            {
    359                if ((par1World.getBlockMetadata(par2, par3, par4) & 8) == 0)
    360                {
    361                    this.func_82535_o(par1World, par2, par3, par4);
    362                }
    363            }
    364        }
    365    }
    366
    367    protected void func_82535_o(World par1World, int par2, int par3, int par4)
    368    {
    369        int var5 = par1World.getBlockMetadata(par2, par3, par4);
    370        int var6 = var5 & 7;
    371        boolean var7 = (var5 & 8) != 0;
    372        this.func_82534_e(var5);
    373        List var9 = par1World.getEntitiesWithinAABB(EntityArrow.class, AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)par2 + this.minX, (double)par3 + this.minY, (double)par4 + this.minZ, (double)par2 + this.maxX, (double)par3 + this.maxY, (double)par4 + this.maxZ));
    374        boolean var8 = !var9.isEmpty();
    375
    376        if (var8 && !var7)
    377        {
    378            par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 | 8);
    379            this.func_82536_d(par1World, par2, par3, par4, var6);
    380            par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    381            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
    382        }
    383
    384        if (!var8 && var7)
    385        {
    386            par1World.setBlockMetadataWithNotify(par2, par3, par4, var6);
    387            this.func_82536_d(par1World, par2, par3, par4, var6);
    388            par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    389            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.5D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
    390        }
    391
    392        if (var8)
    393        {
    394            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    395        }
    396    }
    397
    398    private void func_82536_d(World par1World, int par2, int par3, int par4, int par5)
    399    {
    400        par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
    401
    402        if (par5 == 1)
    403        {
    404            par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
    405        }
    406        else if (par5 == 2)
    407        {
    408            par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
    409        }
    410        else if (par5 == 3)
    411        {
    412            par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
    413        }
    414        else if (par5 == 4)
    415        {
    416            par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
    417        }
    418        else
    419        {
    420            par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
    421        }
    422    }
    423}