Powerline

package com.arisux.avp.entities.tile;

import java.util.ArrayList;
import java.util.ConcurrentModificationException;
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;

    @Override
    public void updateEntity()
    {
        this.updateState();
    }

    @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()
    {
        return true;
    }

    @Override
    public void updateState()
    {
        //Must keep lists empty so we don't have 1 block as a parent AND a child.
        parents.clear();
        children.clear();
        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 te : list) {
            if(te != null){
            //If it's a powersource, then add it.
            if(te.isOutputter() && !te.isReciever())
            {
                this.parents.add(te);
                te.children.add(this);
                if(!this.state)
                {
                    System.out.println("peoeo");
                    this.state = te.canOutputPower();
                }
            }
            else if(te.isOutputter() && te.isReciever())
            {
                //Is the neighbor powered?
                if(te.state)
                {
                    try
                    {
                        this.parents.add(te);
                        te.children.add(this);
                        this.state = true;
                    }
                    catch(ConcurrentModificationException e)
                    {
                        //e.printStackTrace();
                    }
                }
                else if(this.state && !te.state)
                {
                    try{
                        this.children.add(te);
                        te.parents.add(this);
                        te.state = true;
                        te.updateChildren();
                    }
                    catch(ConcurrentModificationException e)
                    {
                        //e.printStackTrace();
                    }
                }
            }
            else if(te.isReciever() && !te.isOutputter())
            {
                this.children.add(te);
                te.parents.add(this);
                te.state = this.state;
            }
        }
        }
    }

    @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 if(world.getTileEntity(x, y, z) instanceof TileEntityR2PConvertor)
            {
                TileEntityR2PConvertor tre = (TileEntityR2PConvertor) world.getTileEntity(x, y, z);
                if(tre.isActiveRedstoneWireAttached)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            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 || p instanceof TileEntityR2PConvertor){
//                  if(p instanceof TileEntityRepulsionGenerator){
//                      setOriginalPowerSource(p);
//                      break;
//                  }
//                  if(p instanceof TileEntitySolarPanel){
//                      setOriginalPowerSource(p);
//                      break;
//                  }
//                  if(p instanceof TileEntityR2PConvertor){
//                      setOriginalPowerSource(p);
//                      break;
//                  }
//                  else if(p instanceof TileEntityPowerline && p.getPowerSource() != null){
//                      if(p.getPowerSource() instanceof TileEntityR2PConvertor && this.getPowerSource() == null && this.neighborRemoved)
//                      {
//                          p.setOriginalPowerSource(null);
//                      }
//                      else
//                      {
//                          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;
    }

    @Override
    public boolean isReciever() {
        return true;
    }

    @Override
    public boolean isOutputter() {
        return true;
    }

    @Override
    public void updateChildren() {
        if(this.children.size() > 0)
        {
            for(PoweredTileEntity te : this.children)
            {
                te.state = this.state;
                te.updateChildren();
            }
        }
    }
}