Package buildcraft.core

Source Code of buildcraft.core.TileBuildCraft

/**
* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.core;

import java.io.IOException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;

import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.Packet;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.util.ForgeDirection;
import cofh.api.energy.IEnergyHandler;
import buildcraft.BuildCraftCore;
import buildcraft.api.power.IPowerReceptor;
import buildcraft.core.network.BuildCraftPacket;
import buildcraft.core.network.ISynchronizedTile;
import buildcraft.core.network.PacketPayload;
import buildcraft.core.network.PacketTileUpdate;
import buildcraft.core.network.PacketUpdate;
import buildcraft.core.network.TilePacketWrapper;
import buildcraft.core.utils.Utils;

public abstract class TileBuildCraft extends TileEntity implements ISynchronizedTile, IEnergyHandler {
  @SuppressWarnings("rawtypes")
  private static Map<Class, TilePacketWrapper> updateWrappers = new HashMap<Class, TilePacketWrapper>();
  @SuppressWarnings("rawtypes")
  private static Map<Class, TilePacketWrapper> descriptionWrappers = new HashMap<Class, TilePacketWrapper>();
 
  protected HashSet<EntityPlayer> guiWatchers = new HashSet<EntityPlayer>();
 
  private final TilePacketWrapper descriptionPacket;
  private final TilePacketWrapper updatePacket;
  private boolean init = false;
  private String owner = "[BuildCraft]";
  private RFBattery battery;

  public TileBuildCraft() {
    if (!updateWrappers.containsKey(this.getClass())) {
      updateWrappers.put(this.getClass(), new TilePacketWrapper(this.getClass()));
    }

    if (!descriptionWrappers.containsKey(this.getClass())) {
      descriptionWrappers.put(this.getClass(), new TilePacketWrapper(this.getClass()));
    }

    updatePacket = updateWrappers.get(this.getClass());
    descriptionPacket = descriptionWrappers.get(this.getClass());
  }

  public String getOwner() {
    return owner;
  }
 
  public void addGuiWatcher(EntityPlayer player) {
    if (!guiWatchers.contains(player)) {
      guiWatchers.add(player);
    }
  }

  public void removeGuiWatcher(EntityPlayer player) {
    if (guiWatchers.contains(player)) {
      guiWatchers.remove(player);
    }
  }
 
  @Override
  public void updateEntity() {
    if (!init && !isInvalid()) {
      initialize();
      init = true;
    }

    if (this instanceof IPowerReceptor) {
      IPowerReceptor receptor = (IPowerReceptor) this;
      receptor.getPowerReceiver(null).update();
    }
  }

  @Override
  public void invalidate() {
    init = false;
    super.invalidate();
  }

  public void initialize() {
    Utils.handleBufferedDescription(this);
  }

  public void onBlockPlacedBy(EntityLivingBase entity, ItemStack stack) {
    if (entity instanceof EntityPlayer) {
      owner = ((EntityPlayer) entity).getDisplayName();
    }
  }

  public void destroy() {
  }

  public void sendNetworkUpdate() {
    if (worldObj != null && !worldObj.isRemote) {
      BuildCraftCore.instance.sendToPlayers(getUpdatePacket(), worldObj,
          xCoord, yCoord, zCoord, DefaultProps.NETWORK_UPDATE_RANGE);
    }
  }

  @Override
  public Packet getDescriptionPacket() {
    return Utils.toPacket(getUpdatePacket(), 0);
  }

  @Override
  public PacketPayload getPacketPayload() {
    return updatePacket.toPayload(this);
  }

  @Override
  public BuildCraftPacket getUpdatePacket() {
    return new PacketTileUpdate(this);
  }

  @Override
  public void handleDescriptionPacket(PacketUpdate packet) throws IOException {
    descriptionPacket.fromPayload(this, packet.payload);
  }

  @Override
  public void handleUpdatePacket(PacketUpdate packet) throws IOException {
    updatePacket.fromPayload(this, packet.payload);
  }

  @Override
  public void postPacketHandling(PacketUpdate packet) {
  }

  @Override
  public void writeToNBT(NBTTagCompound nbt) {
    super.writeToNBT(nbt);
    nbt.setString("owner", owner);
    if (battery != null) {
      NBTTagCompound batteryNBT = new NBTTagCompound();
      battery.writeToNBT(batteryNBT);
      nbt.setTag("battery", batteryNBT);
    }
  }

  @Override
  public void readFromNBT(NBTTagCompound nbt) {
    super.readFromNBT(nbt);
    if (nbt.hasKey("owner")) {
      owner = nbt.getString("owner");
    }
    if (battery != null) {
      battery.readFromNBT(nbt.getCompoundTag("battery"));
    }
  }


  @Override
  public int hashCode() {
    return (xCoord * 37 + yCoord) * 37 + zCoord;
  }

  @Override
  public boolean equals(Object cmp) {
    return this == cmp;
  }

  @Override
  public boolean canConnectEnergy(ForgeDirection from) {
    return battery != null;
  }

  @Override
  public int receiveEnergy(ForgeDirection from, int maxReceive,
      boolean simulate) {
    if (battery != null && this.canConnectEnergy(from)) {
      return battery.receiveEnergy(maxReceive, simulate);
    } else {
      return 0;
    }
  }

  @Override
  public int extractEnergy(ForgeDirection from, int maxExtract,
      boolean simulate) {
    if (battery != null && this.canConnectEnergy(from)) {
      return battery.extractEnergy(maxExtract, simulate);
    } else {
      return 0;
    }
  }

  @Override
  public int getEnergyStored(ForgeDirection from) {
    if (battery != null && this.canConnectEnergy(from)) {
      return battery.getEnergyStored();
    } else {
      return 0;
    }
  }

  @Override
  public int getMaxEnergyStored(ForgeDirection from) {
    if (battery != null && this.canConnectEnergy(from)) {
      return battery.getMaxEnergyStored();
    } else {
      return 0;
    }
  }

  public RFBattery getBattery() {
    return battery;
  }

  protected void setBattery(RFBattery battery) {
    this.battery = battery;
  }
}
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