    001package net.minecraft.block;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import java.util.Iterator;
    006import java.util.List;
    007import java.util.Random;
    008import net.minecraft.block.material.Material;
    009import net.minecraft.entity.Entity;
    010import net.minecraft.entity.player.EntityPlayer;
    011import net.minecraft.item.Item;
    012import net.minecraft.util.AxisAlignedBB;
    013import net.minecraft.util.Direction;
    014import net.minecraft.world.IBlockAccess;
    015import net.minecraft.world.World;
    016
    017public class BlockTripWire extends Block
    018{
    019    public BlockTripWire(int par1)
    020    {
    021        super(par1, Material.circuits);
    022        this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.15625F, 1.0F);
    023        this.setTickRandomly(true);
    024    }
    025
    026    /**
    027     * How many world ticks before ticking
    028     */
    029    public int tickRate(World par1World)
    030    {
    031        return 10;
    032    }
    033
    034    /**
    035     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
    036     * cleared to be reused)
    037     */
    038    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    039    {
    040        return null;
    041    }
    042
    043    /**
    044     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    045     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    046     */
    047    public boolean isOpaqueCube()
    048    {
    049        return false;
    050    }
    051
    052    /**
    053     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    054     */
    055    public boolean renderAsNormalBlock()
    056    {
    057        return false;
    058    }
    059
    060    @SideOnly(Side.CLIENT)
    061
    062    /**
    063     * Returns which pass should this block be rendered on. 0 for solids and 1 for alpha
    064     */
    065    public int getRenderBlockPass()
    066    {
    067        return 1;
    068    }
    069
    070    /**
    071     * The type of render function that is called for this block
    072     */
    073    public int getRenderType()
    074    {
    075        return 30;
    076    }
    077
    078    /**
    079     * Returns the ID of the items to drop on destruction.
    080     */
    081    public int idDropped(int par1, Random par2Random, int par3)
    082    {
    083        return Item.silk.itemID;
    084    }
    085
    086    /**
    087     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    088     * their own) Args: x, y, z, neighbor blockID
    089     */
    090    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    091    {
    092        int i1 = par1World.getBlockMetadata(par2, par3, par4);
    093        boolean flag = (i1 & 2) == 2;
    094        boolean flag1 = !par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4);
    095
    096        if (flag != flag1)
    097        {
    098            this.dropBlockAsItem(par1World, par2, par3, par4, i1, 0);
    099            par1World.setBlockToAir(par2, par3, par4);
    100        }
    101    }
    102
    103    /**
    104     * Updates the blocks bounds based on its current state. Args: world, x, y, z
    105     */
    106    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    107    {
    108        int l = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
    109        boolean flag = (l & 4) == 4;
    110        boolean flag1 = (l & 2) == 2;
    111
    112        if (!flag1)
    113        {
    114            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.09375F, 1.0F);
    115        }
    116        else if (!flag)
    117        {
    118            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.5F, 1.0F);
    119        }
    120        else
    121        {
    122            this.setBlockBounds(0.0F, 0.0625F, 0.0F, 1.0F, 0.15625F, 1.0F);
    123        }
    124    }
    125
    126    /**
    127     * Called whenever the block is added into the world. Args: world, x, y, z
    128     */
    129    public void onBlockAdded(World par1World, int par2, int par3, int par4)
    130    {
    131        int l = par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) ? 0 : 2;
    132        par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 3);
    133        this.func_72149_e(par1World, par2, par3, par4, l);
    134    }
    135
    136    /**
    137     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    138     */
    139    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    140    {
    141        this.func_72149_e(par1World, par2, par3, par4, par6 | 1);
    142    }
    143
    144    /**
    145     * Called when the block is attempted to be harvested
    146     */
    147    public void onBlockHarvested(World par1World, int par2, int par3, int par4, int par5, EntityPlayer par6EntityPlayer)
    148    {
    149        if (!par1World.isRemote)
    150        {
    151            if (par6EntityPlayer.getCurrentEquippedItem() != null && par6EntityPlayer.getCurrentEquippedItem().itemID == Item.shears.itemID)
    152            {
    153                par1World.setBlockMetadataWithNotify(par2, par3, par4, par5 | 8, 4);
    154            }
    155        }
    156    }
    157
    158    @SideOnly(Side.CLIENT)
    159
    160    /**
    161     * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
    162     */
    163    public int idPicked(World par1World, int par2, int par3, int par4)
    164    {
    165        return Item.silk.itemID;
    166    }
    167
    168    private void func_72149_e(World par1World, int par2, int par3, int par4, int par5)
    169    {
    170        int i1 = 0;
    171
    172        while (i1 < 2)
    173        {
    174            int j1 = 1;
    175
    176            while (true)
    177            {
    178                if (j1 < 42)
    179                {
    180                    int k1 = par2 + Direction.offsetX[i1] * j1;
    181                    int l1 = par4 + Direction.offsetZ[i1] * j1;
    182                    int i2 = par1World.getBlockId(k1, par3, l1);
    183
    184                    if (i2 == Block.tripWireSource.blockID)
    185                    {
    186                        int j2 = par1World.getBlockMetadata(k1, par3, l1) & 3;
    187
    188                        if (j2 == Direction.rotateOpposite[i1])
    189                        {
    190                            Block.tripWireSource.func_72143_a(par1World, k1, par3, l1, i2, par1World.getBlockMetadata(k1, par3, l1), true, j1, par5);
    191                        }
    192                    }
    193                    else if (i2 == Block.tripWire.blockID)
    194                    {
    195                        ++j1;
    196                        continue;
    197                    }
    198                }
    199
    200                ++i1;
    201                break;
    202            }
    203        }
    204    }
    205
    206    /**
    207     * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
    208     */
    209    public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
    210    {
    211        if (!par1World.isRemote)
    212        {
    213            if ((par1World.getBlockMetadata(par2, par3, par4) & 1) != 1)
    214            {
    215                this.updateTripWireState(par1World, par2, par3, par4);
    216            }
    217        }
    218    }
    219
    220    /**
    221     * Ticks the block if it's been scheduled
    222     */
    223    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    224    {
    225        if (!par1World.isRemote)
    226        {
    227            if ((par1World.getBlockMetadata(par2, par3, par4) & 1) == 1)
    228            {
    229                this.updateTripWireState(par1World, par2, par3, par4);
    230            }
    231        }
    232    }
    233
    234    private void updateTripWireState(World par1World, int par2, int par3, int par4)
    235    {
    236        int l = par1World.getBlockMetadata(par2, par3, par4);
    237        boolean flag = (l & 1) == 1;
    238        boolean flag1 = false;
    239        List list = par1World.getEntitiesWithinAABBExcludingEntity((Entity)null, AxisAlignedBB.getAABBPool().getAABB((double)par2 + this.minX, (double)par3 + this.minY, (double)par4 + this.minZ, (double)par2 + this.maxX, (double)par3 + this.maxY, (double)par4 + this.maxZ));
    240
    241        if (!list.isEmpty())
    242        {
    243            Iterator iterator = list.iterator();
    244
    245            while (iterator.hasNext())
    246            {
    247                Entity entity = (Entity)iterator.next();
    248
    249                if (!entity.doesEntityNotTriggerPressurePlate())
    250                {
    251                    flag1 = true;
    252                    break;
    253                }
    254            }
    255        }
    256
    257        if (flag1 && !flag)
    258        {
    259            l |= 1;
    260        }
    261
    262        if (!flag1 && flag)
    263        {
    264            l &= -2;
    265        }
    266
    267        if (flag1 != flag)
    268        {
    269            par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 3);
    270            this.func_72149_e(par1World, par2, par3, par4, l);
    271        }
    272
    273        if (flag1)
    274        {
    275            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate(par1World));
    276        }
    277    }
    278
    279    @SideOnly(Side.CLIENT)
    280    public static boolean func_72148_a(IBlockAccess par0IBlockAccess, int par1, int par2, int par3, int par4, int par5)
    281    {
    282        int j1 = par1 + Direction.offsetX[par5];
    283        int k1 = par3 + Direction.offsetZ[par5];
    284        int l1 = par0IBlockAccess.getBlockId(j1, par2, k1);
    285        boolean flag = (par4 & 2) == 2;
    286        int i2;
    287
    288        if (l1 == Block.tripWireSource.blockID)
    289        {
    290            i2 = par0IBlockAccess.getBlockMetadata(j1, par2, k1);
    291            int j2 = i2 & 3;
    292            return j2 == Direction.rotateOpposite[par5];
    293        }
    294        else if (l1 == Block.tripWire.blockID)
    295        {
    296            i2 = par0IBlockAccess.getBlockMetadata(j1, par2, k1);
    297            boolean flag1 = (i2 & 2) == 2;
    298            return flag == flag1;
    299        }
    300        else
    301        {
    302            return false;
    303        }
    304    }
    305}