C4 exploding block

gistfile1.txt

package apoc.c4.tileentity;

import net.minecraft.client.Minecraft;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraft.network.play.server.S35PacketUpdateTileEntity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class TileEntityC4 extends TileEntity {

    private boolean Activated;
    private int Time = 100;

    public boolean isActivated() {
        return Activated;
    }

    public void setActivated(boolean activated) {
        Activated = activated;
    }

    @Override
    public void updateEntity() {
        if (Activated){
            if (!this.worldObj.isRemote){
                Time--;
                if (Time < 0){
                    explode();
                    Activated = false;
                    Time = 100;
                }
            }
        }
    }
    private void explode()
    {
        float f = 4.0F;
        this.worldObj.setBlockToAir(this.xCoord, this.yCoord, this.zCoord);
        this.worldObj.createExplosion(null, this.xCoord, this.yCoord, this.zCoord, f, true);
    }
    @Override
    public void writeToNBT(NBTTagCompound tagCompound) {
        tagCompound.setBoolean("Activated", Activated);
        super.writeToNBT(tagCompound);
    }

    @Override
    public void readFromNBT(NBTTagCompound tagCompound) {
        Activated = tagCompound.getBoolean("Activated");
        super.readFromNBT(tagCompound);
    }

    @Override
    public Packet getDescriptionPacket() {
        NBTTagCompound tagCompound = new NBTTagCompound();
        writeToNBT(tagCompound);
        return new S35PacketUpdateTileEntity(this.xCoord,this.yCoord,this.zCoord, 1, tagCompound);
    }

    @Override
    public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt) {
        readFromNBT(pkt.func_148857_g());
        super.onDataPacket(net, pkt);
    }
}