    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.Random;
    006    import net.minecraft.block.material.Material;
    007    import net.minecraft.entity.item.EntityFallingSand;
    008    import net.minecraft.entity.player.EntityPlayer;
    009    import net.minecraft.world.IBlockAccess;
    010    import net.minecraft.world.World;
    011
    012    public class BlockDragonEgg extends Block
    013    {
    014        public BlockDragonEgg(int par1, int par2)
    015        {
    016            super(par1, par2, Material.dragonEgg);
    017        }
    018
    019        /**
    020         * Called whenever the block is added into the world. Args: world, x, y, z
    021         */
    022        public void onBlockAdded(World par1World, int par2, int par3, int par4)
    023        {
    024            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    025        }
    026
    027        /**
    028         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    029         * their own) Args: x, y, z, neighbor blockID
    030         */
    031        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    032        {
    033            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate());
    034        }
    035
    036        /**
    037         * Ticks the block if it's been scheduled
    038         */
    039        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    040        {
    041            this.fallIfPossible(par1World, par2, par3, par4);
    042        }
    043
    044        /**
    045         * Checks if the dragon egg can fall down, and if so, makes it fall.
    046         */
    047        private void fallIfPossible(World par1World, int par2, int par3, int par4)
    048        {
    049            if (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 >= 0)
    050            {
    051                byte var5 = 32;
    052
    053                if (!BlockSand.fallInstantly && par1World.checkChunksExist(par2 - var5, par3 - var5, par4 - var5, par2 + var5, par3 + var5, par4 + var5))
    054                {
    055                    EntityFallingSand var6 = new EntityFallingSand(par1World, (double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), this.blockID);
    056                    par1World.spawnEntityInWorld(var6);
    057                }
    058                else
    059                {
    060                    par1World.setBlockWithNotify(par2, par3, par4, 0);
    061
    062                    while (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 > 0)
    063                    {
    064                        --par3;
    065                    }
    066
    067                    if (par3 > 0)
    068                    {
    069                        par1World.setBlockWithNotify(par2, par3, par4, this.blockID);
    070                    }
    071                }
    072            }
    073        }
    074
    075        /**
    076         * Called upon block activation (right click on the block.)
    077         */
    078        public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    079        {
    080            this.teleportNearby(par1World, par2, par3, par4);
    081            return true;
    082        }
    083
    084        /**
    085         * Called when the block is clicked by a player. Args: x, y, z, entityPlayer
    086         */
    087        public void onBlockClicked(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer)
    088        {
    089            this.teleportNearby(par1World, par2, par3, par4);
    090        }
    091
    092        /**
    093         * Teleports the dragon egg somewhere else in a 31x19x31 area centered on the egg.
    094         */
    095        private void teleportNearby(World par1World, int par2, int par3, int par4)
    096        {
    097            if (par1World.getBlockId(par2, par3, par4) == this.blockID)
    098            {
    099                for (int var5 = 0; var5 < 1000; ++var5)
    100                {
    101                    int var6 = par2 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    102                    int var7 = par3 + par1World.rand.nextInt(8) - par1World.rand.nextInt(8);
    103                    int var8 = par4 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    104
    105                    if (par1World.getBlockId(var6, var7, var8) == 0)
    106                    {
    107                        if (!par1World.isRemote)
    108                        {
    109                            par1World.setBlockAndMetadataWithNotify(var6, var7, var8, this.blockID, par1World.getBlockMetadata(par2, par3, par4));
    110                            par1World.setBlockWithNotify(par2, par3, par4, 0);
    111                        }
    112                        else
    113                        {
    114                            short var9 = 128;
    115
    116                            for (int var10 = 0; var10 < var9; ++var10)
    117                            {
    118                                double var11 = par1World.rand.nextDouble();
    119                                float var13 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    120                                float var14 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    121                                float var15 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    122                                double var16 = (double)var6 + (double)(par2 - var6) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    123                                double var18 = (double)var7 + (double)(par3 - var7) * var11 + par1World.rand.nextDouble() * 1.0D - 0.5D;
    124                                double var20 = (double)var8 + (double)(par4 - var8) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    125                                par1World.spawnParticle("portal", var16, var18, var20, (double)var13, (double)var14, (double)var15);
    126                            }
    127                        }
    128
    129                        return;
    130                    }
    131                }
    132            }
    133        }
    134
    135        /**
    136         * How many world ticks before ticking
    137         */
    138        public int tickRate()
    139        {
    140            return 5;
    141        }
    142
    143        /**
    144         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    145         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    146         */
    147        public boolean isOpaqueCube()
    148        {
    149            return false;
    150        }
    151
    152        /**
    153         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    154         */
    155        public boolean renderAsNormalBlock()
    156        {
    157            return false;
    158        }
    159
    160        @SideOnly(Side.CLIENT)
    161
    162        /**
    163         * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
    164         * coordinates.  Args: blockAccess, x, y, z, side
    165         */
    166        public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    167        {
    168            return true;
    169        }
    170
    171        /**
    172         * The type of render function that is called for this block
    173         */
    174        public int getRenderType()
    175        {
    176            return 27;
    177        }
    178
    179        @SideOnly(Side.CLIENT)
    180
    181        /**
    182         * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
    183         */
    184        public int idPicked(World par1World, int par2, int par3, int par4)
    185        {
    186            return 0;
    187        }
    188    }