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.setBlockToAir(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.setBlock(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.setBlock(i1, j1, k1, this.blockID, par1World.getBlockMetadata(par2, par3, par4), 2);
111                        par1World.setBlockToAir(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}