TileEntityPowerline

package com.arisux.avp.entities.tile;

import java.util.ArrayList;
import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
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 TileEntityPowerline extends PoweredTileEntity
{
    public PoweredTileEntity originalpowersource = null;
    public boolean state;
    @Override
    public void onVoltageTick()
    {
        ;
    }

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

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

    @Override
    public void writeToNBT(NBTTagCompound nbt)
    {
        super.writeToNBT(nbt);
    }

    @Override
    public void readFromNBT(NBTTagCompound nbt)
    {
        super.readFromNBT(nbt);
    }

    @Override
    public double getMinOperatingVoltage()
    {
        return 0;
    }

    @Override
    public double getMaxOperatingVoltage()
    {
        return 10000;
    }

    @Override
    public double getMinOperatingAmps()
    {
        return 0;
    }

    @Override
    public double getMaxOperatingAmps()
    {
        return 1000;
    }

    @Override
    public double getResistance()
    {
        return 0.002;
    }

    @Override
    public boolean canOutputPower()
    {
        updateState();
        getOriginalPowerSource();
        if(isOriginalPowerSourceAttached() && state){
            return true;
        }
        else{
            return false;
        }
    }

    public void updateState(){
        try{
        List<PoweredTileEntity> list = new ArrayList<PoweredTileEntity>();
        list.add(this.getTop());
        list.add(this.getBack());
        list.add(this.getBottom());
        list.add(this.getLeft());
        list.add(this.getRight());
        list.add(this.getFront());
        for(PoweredTileEntity p : list){
            if(p.isPowerSource()){
                state = true;
            }
            else if(p instanceof TileEntityPowerline){
                TileEntityPowerline te = (TileEntityPowerline) p;
                boolean itsState = te.state;
                if(itsState && !this.state){
                    this.state = itsState;
                }
                else if(this.state && !itsState){
                    itsState = this.state;
                }
            }
        }
        }catch(NullPointerException e)
        {
        }
    }

    @Override
    public Block getBlockType()
    {
        return Blocks.beacon;
    }

    @Override
    public void onOverloadTick()
    {
        ;
    }

    @Override
    public void onUnderloadTick()
    {
        ;
    }

    @Override
    public boolean isOriginalPowerSourceAttached() {
        try{
            PoweredTileEntity t = this.getPowerSource();
            int x = t.xCoord;
            int y = t.yCoord;
            int z = t.zCoord;
            World world = t.getWorldObj();
            if(world.getTileEntity(x, y, z) instanceof TileEntityRepulsionGenerator){
                return true;
            }
            else if(world.getTileEntity(x, y, z) instanceof TileEntitySolarPanel){
                return true;
            }
            else{
                return false;
            }
        }
        catch(java.lang.NullPointerException e){
            return false;
        }
    }

    @Override
    public void getOriginalPowerSource() {
        List<PoweredTileEntity> list = new ArrayList<PoweredTileEntity>();
        list.add(this.getTop());
        list.add(this.getBack());
        list.add(this.getBottom());
        list.add(this.getLeft());
        list.add(this.getRight());
        list.add(this.getFront());
            for(PoweredTileEntity p : list){
                if(p instanceof TileEntityRepulsionGenerator || p instanceof TileEntityPowerline || p instanceof TileEntitySolarPanel || p instanceof TileEntityTransformer || p instanceof TileEntityNegativeTransformer){
                    if(p instanceof TileEntityRepulsionGenerator){
                        setOriginalPowerSource(p);
                        break;
                    }
                    if(p instanceof TileEntitySolarPanel){
                        setOriginalPowerSource(p);
                        break;
                    }
                    else if(p instanceof TileEntityPowerline && p.getPowerSource() != null){
                        setOriginalPowerSource(p.getPowerSource());
                        break;
                    }
                    else if(p instanceof TileEntityTransformer && p.getPowerSource() != null){
                        setOriginalPowerSource(p.getPowerSource());
                        break;
                    }
                    else if(p instanceof TileEntityNegativeTransformer && p.getPowerSource() != null){
                        setOriginalPowerSource(p.getPowerSource());
                        break;
                    }
                }

            }
    }

    @Override
    public void setOriginalPowerSource(PoweredTileEntity e) {
        originalpowersource = e;
    }
    @Override
    public PoweredTileEntity getPowerSource(){
        if(originalpowersource != null){
                return originalpowersource;
        }
        return null;
    }
}