001package net.minecraft.tileentity;
002
003import net.minecraft.block.Block;
004import net.minecraft.entity.player.EntityPlayer;
005
006public class TileEntityEnderChest extends TileEntity
007{
008    /** The current angle of the chest lid (between 0 and 1) */
009    public float lidAngle;
010
011    /** The angle of the chest lid last tick */
012    public float prevLidAngle;
013
014    /** The number of players currently using this ender chest. */
015    public int numUsingPlayers;
016
017    /** Server sync counter (once per 20 ticks) */
018    private int ticksSinceSync;
019
020    /**
021     * Allows the entity to update its state. Overridden in most subclasses, e.g. the mob spawner uses this to count
022     * ticks and creates a new spawn inside its implementation.
023     */
024    public void updateEntity()
025    {
026        super.updateEntity();
027
028        if (++this.ticksSinceSync % 20 * 4 == 0)
029        {
030            this.worldObj.addBlockEvent(this.xCoord, this.yCoord, this.zCoord, Block.enderChest.blockID, 1, this.numUsingPlayers);
031        }
032
033        this.prevLidAngle = this.lidAngle;
034        float var1 = 0.1F;
035        double var4;
036
037        if (this.numUsingPlayers > 0 && this.lidAngle == 0.0F)
038        {
039            double var2 = (double)this.xCoord + 0.5D;
040            var4 = (double)this.zCoord + 0.5D;
041            this.worldObj.playSoundEffect(var2, (double)this.yCoord + 0.5D, var4, "random.chestopen", 0.5F, this.worldObj.rand.nextFloat() * 0.1F + 0.9F);
042        }
043
044        if (this.numUsingPlayers == 0 && this.lidAngle > 0.0F || this.numUsingPlayers > 0 && this.lidAngle < 1.0F)
045        {
046            float var8 = this.lidAngle;
047
048            if (this.numUsingPlayers > 0)
049            {
050                this.lidAngle += var1;
051            }
052            else
053            {
054                this.lidAngle -= var1;
055            }
056
057            if (this.lidAngle > 1.0F)
058            {
059                this.lidAngle = 1.0F;
060            }
061
062            float var3 = 0.5F;
063
064            if (this.lidAngle < var3 && var8 >= var3)
065            {
066                var4 = (double)this.xCoord + 0.5D;
067                double var6 = (double)this.zCoord + 0.5D;
068                this.worldObj.playSoundEffect(var4, (double)this.yCoord + 0.5D, var6, "random.chestclosed", 0.5F, this.worldObj.rand.nextFloat() * 0.1F + 0.9F);
069            }
070
071            if (this.lidAngle < 0.0F)
072            {
073                this.lidAngle = 0.0F;
074            }
075        }
076    }
077
078    /**
079     * Called when a client event is received with the event number and argument, see World.sendClientEvent
080     */
081    public void receiveClientEvent(int par1, int par2)
082    {
083        if (par1 == 1)
084        {
085            this.numUsingPlayers = par2;
086        }
087    }
088
089    /**
090     * invalidates a tile entity
091     */
092    public void invalidate()
093    {
094        this.updateContainingBlockInfo();
095        super.invalidate();
096    }
097
098    public void openChest()
099    {
100        ++this.numUsingPlayers;
101        this.worldObj.addBlockEvent(this.xCoord, this.yCoord, this.zCoord, Block.enderChest.blockID, 1, this.numUsingPlayers);
102    }
103
104    public void closeChest()
105    {
106        --this.numUsingPlayers;
107        this.worldObj.addBlockEvent(this.xCoord, this.yCoord, this.zCoord, Block.enderChest.blockID, 1, this.numUsingPlayers);
108    }
109
110    public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer)
111    {
112        return this.worldObj.getBlockTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : par1EntityPlayer.getDistanceSq((double)this.xCoord + 0.5D, (double)this.yCoord + 0.5D, (double)this.zCoord + 0.5D) <= 64.0D;
113    }
114}