    001package net.minecraft.block;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import java.util.Random;
    006import net.minecraft.block.material.Material;
    007import net.minecraft.creativetab.CreativeTabs;
    008import net.minecraft.util.AxisAlignedBB;
    009import net.minecraft.util.MovingObjectPosition;
    010import net.minecraft.util.Vec3;
    011import net.minecraft.world.World;
    012
    013import net.minecraftforge.common.ForgeDirection;
    014import static net.minecraftforge.common.ForgeDirection.*;
    015
    016public class BlockTorch extends Block
    017{
    018    protected BlockTorch(int par1)
    019    {
    020        super(par1, Material.circuits);
    021        this.setTickRandomly(true);
    022        this.setCreativeTab(CreativeTabs.tabDecorations);
    023    }
    024
    025    /**
    026     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
    027     * cleared to be reused)
    028     */
    029    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    030    {
    031        return null;
    032    }
    033
    034    /**
    035     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    036     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    037     */
    038    public boolean isOpaqueCube()
    039    {
    040        return false;
    041    }
    042
    043    /**
    044     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    045     */
    046    public boolean renderAsNormalBlock()
    047    {
    048        return false;
    049    }
    050
    051    /**
    052     * The type of render function that is called for this block
    053     */
    054    public int getRenderType()
    055    {
    056        return 2;
    057    }
    058
    059    /**
    060     * Gets if we can place a torch on a block.
    061     */
    062    private boolean canPlaceTorchOn(World par1World, int par2, int par3, int par4)
    063    {
    064        if (par1World.doesBlockHaveSolidTopSurface(par2, par3, par4))
    065        {
    066            return true;
    067        }
    068        else
    069        {
    070            int l = par1World.getBlockId(par2, par3, par4);
    071            return (Block.blocksList[l] != null && Block.blocksList[l].canPlaceTorchOnTop(par1World, par2, par3, par4));
    072        }
    073    }
    074
    075    /**
    076     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
    077     */
    078    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    079    {
    080        return par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST,  true) ||
    081               par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST,  true) ||
    082               par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) ||
    083               par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) ||
    084               canPlaceTorchOn(par1World, par2, par3 - 1, par4);
    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 j1 = par9;
    093
    094        if (par5 == 1 && this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
    095        {
    096            j1 = 5;
    097        }
    098
    099        if (par5 == 2 && par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
    100        {
    101            j1 = 4;
    102        }
    103
    104        if (par5 == 3 && par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
    105        {
    106            j1 = 3;
    107        }
    108
    109        if (par5 == 4 && par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
    110        {
    111            j1 = 2;
    112        }
    113
    114        if (par5 == 5 && par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
    115        {
    116            j1 = 1;
    117        }
    118
    119        return j1;
    120    }
    121
    122    /**
    123     * Ticks the block if it's been scheduled
    124     */
    125    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    126    {
    127        super.updateTick(par1World, par2, par3, par4, par5Random);
    128
    129        if (par1World.getBlockMetadata(par2, par3, par4) == 0)
    130        {
    131            this.onBlockAdded(par1World, par2, par3, par4);
    132        }
    133    }
    134
    135    /**
    136     * Called whenever the block is added into the world. Args: world, x, y, z
    137     */
    138    public void onBlockAdded(World par1World, int par2, int par3, int par4)
    139    {
    140        if (par1World.getBlockMetadata(par2, par3, par4) == 0)
    141        {
    142            if (par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true))
    143            {
    144                par1World.setBlockMetadataWithNotify(par2, par3, par4, 1, 2);
    145            }
    146            else if (par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true))
    147            {
    148                par1World.setBlockMetadataWithNotify(par2, par3, par4, 2, 2);
    149            }
    150            else if (par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true))
    151            {
    152                par1World.setBlockMetadataWithNotify(par2, par3, par4, 3, 2);
    153            }
    154            else if (par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true))
    155            {
    156                par1World.setBlockMetadataWithNotify(par2, par3, par4, 4, 2);
    157            }
    158            else if (this.canPlaceTorchOn(par1World, par2, par3 - 1, par4))
    159            {
    160                par1World.setBlockMetadataWithNotify(par2, par3, par4, 5, 2);
    161            }
    162        }
    163
    164        this.dropTorchIfCantStay(par1World, par2, par3, par4);
    165    }
    166
    167    /**
    168     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    169     * their own) Args: x, y, z, neighbor blockID
    170     */
    171    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    172    {
    173        this.func_94397_d(par1World, par2, par3, par4, par5);
    174    }
    175
    176    protected boolean func_94397_d(World par1World, int par2, int par3, int par4, int par5)
    177    {
    178        if (this.dropTorchIfCantStay(par1World, par2, par3, par4))
    179        {
    180            int i1 = par1World.getBlockMetadata(par2, par3, par4);
    181            boolean flag = false;
    182
    183            if (!par1World.isBlockSolidOnSide(par2 - 1, par3, par4, EAST, true) && i1 == 1)
    184            {
    185                flag = true;
    186            }
    187
    188            if (!par1World.isBlockSolidOnSide(par2 + 1, par3, par4, WEST, true) && i1 == 2)
    189            {
    190                flag = true;
    191            }
    192
    193            if (!par1World.isBlockSolidOnSide(par2, par3, par4 - 1, SOUTH, true) && i1 == 3)
    194            {
    195                flag = true;
    196            }
    197
    198            if (!par1World.isBlockSolidOnSide(par2, par3, par4 + 1, NORTH, true) && i1 == 4)
    199            {
    200                flag = true;
    201            }
    202
    203            if (!this.canPlaceTorchOn(par1World, par2, par3 - 1, par4) && i1 == 5)
    204            {
    205                flag = true;
    206            }
    207
    208            if (flag)
    209            {
    210                this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
    211                par1World.setBlockToAir(par2, par3, par4);
    212                return true;
    213            }
    214            else
    215            {
    216                return false;
    217            }
    218        }
    219        else
    220        {
    221            return true;
    222        }
    223    }
    224
    225    /**
    226     * Tests if the block can remain at its current location and will drop as an item if it is unable to stay. Returns
    227     * True if it can stay and False if it drops. Args: world, x, y, z
    228     */
    229    protected boolean dropTorchIfCantStay(World par1World, int par2, int par3, int par4)
    230    {
    231        if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
    232        {
    233            if (par1World.getBlockId(par2, par3, par4) == this.blockID)
    234            {
    235                this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
    236                par1World.setBlockToAir(par2, par3, par4);
    237            }
    238
    239            return false;
    240        }
    241        else
    242        {
    243            return true;
    244        }
    245    }
    246
    247    /**
    248     * Ray traces through the blocks collision from start vector to end vector returning a ray trace hit. Args: world,
    249     * x, y, z, startVec, endVec
    250     */
    251    public MovingObjectPosition collisionRayTrace(World par1World, int par2, int par3, int par4, Vec3 par5Vec3, Vec3 par6Vec3)
    252    {
    253        int l = par1World.getBlockMetadata(par2, par3, par4) & 7;
    254        float f = 0.15F;
    255
    256        if (l == 1)
    257        {
    258            this.setBlockBounds(0.0F, 0.2F, 0.5F - f, f * 2.0F, 0.8F, 0.5F + f);
    259        }
    260        else if (l == 2)
    261        {
    262            this.setBlockBounds(1.0F - f * 2.0F, 0.2F, 0.5F - f, 1.0F, 0.8F, 0.5F + f);
    263        }
    264        else if (l == 3)
    265        {
    266            this.setBlockBounds(0.5F - f, 0.2F, 0.0F, 0.5F + f, 0.8F, f * 2.0F);
    267        }
    268        else if (l == 4)
    269        {
    270            this.setBlockBounds(0.5F - f, 0.2F, 1.0F - f * 2.0F, 0.5F + f, 0.8F, 1.0F);
    271        }
    272        else
    273        {
    274            f = 0.1F;
    275            this.setBlockBounds(0.5F - f, 0.0F, 0.5F - f, 0.5F + f, 0.6F, 0.5F + f);
    276        }
    277
    278        return super.collisionRayTrace(par1World, par2, par3, par4, par5Vec3, par6Vec3);
    279    }
    280
    281    @SideOnly(Side.CLIENT)
    282
    283    /**
    284     * A randomly called display update to be able to add particles or other items for display
    285     */
    286    public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
    287    {
    288        int l = par1World.getBlockMetadata(par2, par3, par4);
    289        double d0 = (double)((float)par2 + 0.5F);
    290        double d1 = (double)((float)par3 + 0.7F);
    291        double d2 = (double)((float)par4 + 0.5F);
    292        double d3 = 0.2199999988079071D;
    293        double d4 = 0.27000001072883606D;
    294
    295        if (l == 1)
    296        {
    297            par1World.spawnParticle("smoke", d0 - d4, d1 + d3, d2, 0.0D, 0.0D, 0.0D);
    298            par1World.spawnParticle("flame", d0 - d4, d1 + d3, d2, 0.0D, 0.0D, 0.0D);
    299        }
    300        else if (l == 2)
    301        {
    302            par1World.spawnParticle("smoke", d0 + d4, d1 + d3, d2, 0.0D, 0.0D, 0.0D);
    303            par1World.spawnParticle("flame", d0 + d4, d1 + d3, d2, 0.0D, 0.0D, 0.0D);
    304        }
    305        else if (l == 3)
    306        {
    307            par1World.spawnParticle("smoke", d0, d1 + d3, d2 - d4, 0.0D, 0.0D, 0.0D);
    308            par1World.spawnParticle("flame", d0, d1 + d3, d2 - d4, 0.0D, 0.0D, 0.0D);
    309        }
    310        else if (l == 4)
    311        {
    312            par1World.spawnParticle("smoke", d0, d1 + d3, d2 + d4, 0.0D, 0.0D, 0.0D);
    313            par1World.spawnParticle("flame", d0, d1 + d3, d2 + d4, 0.0D, 0.0D, 0.0D);
    314        }
    315        else
    316        {
    317            par1World.spawnParticle("smoke", d0, d1, d2, 0.0D, 0.0D, 0.0D);
    318            par1World.spawnParticle("flame", d0, d1, d2, 0.0D, 0.0D, 0.0D);
    319        }
    320    }
    321}