    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.entity.item.EntityFallingSand;
    008import net.minecraft.entity.player.EntityPlayer;
    009import net.minecraft.world.IBlockAccess;
    010import net.minecraft.world.World;
    011
    012public class BlockDragonEgg extends Block
    013{
    014    public BlockDragonEgg(int par1)
    015    {
    016        super(par1, Material.dragonEgg);
    017        this.setBlockBounds(0.0625F, 0.0F, 0.0625F, 0.9375F, 1.0F, 0.9375F);
    018    }
    019
    020    /**
    021     * Called whenever the block is added into the world. Args: world, x, y, z
    022     */
    023    public void onBlockAdded(World par1World, int par2, int par3, int par4)
    024    {
    025        par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate(par1World));
    026    }
    027
    028    /**
    029     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    030     * their own) Args: x, y, z, neighbor blockID
    031     */
    032    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    033    {
    034        par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate(par1World));
    035    }
    036
    037    /**
    038     * Ticks the block if it's been scheduled
    039     */
    040    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    041    {
    042        this.fallIfPossible(par1World, par2, par3, par4);
    043    }
    044
    045    /**
    046     * Checks if the dragon egg can fall down, and if so, makes it fall.
    047     */
    048    private void fallIfPossible(World par1World, int par2, int par3, int par4)
    049    {
    050        if (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 >= 0)
    051        {
    052            byte b0 = 32;
    053
    054            if (!BlockSand.fallInstantly && par1World.checkChunksExist(par2 - b0, par3 - b0, par4 - b0, par2 + b0, par3 + b0, par4 + b0))
    055            {
    056                EntityFallingSand entityfallingsand = new EntityFallingSand(par1World, (double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), this.blockID);
    057                par1World.spawnEntityInWorld(entityfallingsand);
    058            }
    059            else
    060            {
    061                par1World.func_94571_i(par2, par3, par4);
    062
    063                while (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 > 0)
    064                {
    065                    --par3;
    066                }
    067
    068                if (par3 > 0)
    069                {
    070                    par1World.setBlockAndMetadataWithNotify(par2, par3, par4, this.blockID, 0, 2);
    071                }
    072            }
    073        }
    074    }
    075
    076    /**
    077     * Called upon block activation (right click on the block.)
    078     */
    079    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    080    {
    081        this.teleportNearby(par1World, par2, par3, par4);
    082        return true;
    083    }
    084
    085    /**
    086     * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
    087     */
    088    public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer)
    089    {
    090        this.teleportNearby(par1World, par2, par3, par4);
    091    }
    092
    093    /**
    094     * Teleports the dragon egg somewhere else in a 31x19x31 area centered on the egg.
    095     */
    096    private void teleportNearby(World par1World, int par2, int par3, int par4)
    097    {
    098        if (par1World.getBlockId(par2, par3, par4) == this.blockID)
    099        {
    100            for (int l = 0; l < 1000; ++l)
    101            {
    102                int i1 = par2 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    103                int j1 = par3 + par1World.rand.nextInt(8) - par1World.rand.nextInt(8);
    104                int k1 = par4 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    105
    106                if (par1World.getBlockId(i1, j1, k1) == 0)
    107                {
    108                    if (!par1World.isRemote)
    109                    {
    110                        par1World.setBlockAndMetadataWithNotify(i1, j1, k1, this.blockID, par1World.getBlockMetadata(par2, par3, par4), 2);
    111                        par1World.func_94571_i(par2, par3, par4);
    112                    }
    113                    else
    114                    {
    115                        short short1 = 128;
    116
    117                        for (int l1 = 0; l1 < short1; ++l1)
    118                        {
    119                            double d0 = par1World.rand.nextDouble();
    120                            float f = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    121                            float f1 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    122                            float f2 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    123                            double d1 = (double)i1 + (double)(par2 - i1) * d0 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    124                            double d2 = (double)j1 + (double)(par3 - j1) * d0 + par1World.rand.nextDouble() * 1.0D - 0.5D;
    125                            double d3 = (double)k1 + (double)(par4 - k1) * d0 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    126                            par1World.spawnParticle("portal", d1, d2, d3, (double)f, (double)f1, (double)f2);
    127                        }
    128                    }
    129
    130                    return;
    131                }
    132            }
    133        }
    134    }
    135
    136    /**
    137     * How many world ticks before ticking
    138     */
    139    public int tickRate(World par1World)
    140    {
    141        return 5;
    142    }
    143
    144    /**
    145     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    146     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    147     */
    148    public boolean isOpaqueCube()
    149    {
    150        return false;
    151    }
    152
    153    /**
    154     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    155     */
    156    public boolean renderAsNormalBlock()
    157    {
    158        return false;
    159    }
    160
    161    @SideOnly(Side.CLIENT)
    162
    163    /**
    164     * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
    165     * coordinates.  Args: blockAccess, x, y, z, side
    166     */
    167    public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    168    {
    169        return true;
    170    }
    171
    172    /**
    173     * The type of render function that is called for this block
    174     */
    175    public int getRenderType()
    176    {
    177        return 27;
    178    }
    179
    180    @SideOnly(Side.CLIENT)
    181
    182    /**
    183     * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
    184     */
    185    public int idPicked(World par1World, int par2, int par3, int par4)
    186    {
    187        return 0;
    188    }
    189}