    001    package net.minecraft.block;
    002
    003    import cpw.mods.fml.relauncher.Side;
    004    import cpw.mods.fml.relauncher.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            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());
    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());
    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 var5 = 32;
    053
    054                if (!BlockSand.fallInstantly && par1World.checkChunksExist(par2 - var5, par3 - var5, par4 - var5, par2 + var5, par3 + var5, par4 + var5))
    055                {
    056                    EntityFallingSand var6 = new EntityFallingSand(par1World, (double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), this.blockID);
    057                    par1World.spawnEntityInWorld(var6);
    058                }
    059                else
    060                {
    061                    par1World.setBlockWithNotify(par2, par3, par4, 0);
    062
    063                    while (BlockSand.canFallBelow(par1World, par2, par3 - 1, par4) && par3 > 0)
    064                    {
    065                        --par3;
    066                    }
    067
    068                    if (par3 > 0)
    069                    {
    070                        par1World.setBlockWithNotify(par2, par3, par4, this.blockID);
    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 var5 = 0; var5 < 1000; ++var5)
    101                {
    102                    int var6 = par2 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    103                    int var7 = par3 + par1World.rand.nextInt(8) - par1World.rand.nextInt(8);
    104                    int var8 = par4 + par1World.rand.nextInt(16) - par1World.rand.nextInt(16);
    105
    106                    if (par1World.getBlockId(var6, var7, var8) == 0)
    107                    {
    108                        if (!par1World.isRemote)
    109                        {
    110                            par1World.setBlockAndMetadataWithNotify(var6, var7, var8, this.blockID, par1World.getBlockMetadata(par2, par3, par4));
    111                            par1World.setBlockWithNotify(par2, par3, par4, 0);
    112                        }
    113                        else
    114                        {
    115                            short var9 = 128;
    116
    117                            for (int var10 = 0; var10 < var9; ++var10)
    118                            {
    119                                double var11 = par1World.rand.nextDouble();
    120                                float var13 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    121                                float var14 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    122                                float var15 = (par1World.rand.nextFloat() - 0.5F) * 0.2F;
    123                                double var16 = (double)var6 + (double)(par2 - var6) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    124                                double var18 = (double)var7 + (double)(par3 - var7) * var11 + par1World.rand.nextDouble() * 1.0D - 0.5D;
    125                                double var20 = (double)var8 + (double)(par4 - var8) * var11 + (par1World.rand.nextDouble() - 0.5D) * 1.0D + 0.5D;
    126                                par1World.spawnParticle("portal", var16, var18, var20, (double)var13, (double)var14, (double)var15);
    127                            }
    128                        }
    129
    130                        return;
    131                    }
    132                }
    133            }
    134        }
    135
    136        /**
    137         * How many world ticks before ticking
    138         */
    139        public int tickRate()
    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    }