equivalent-exchange-3/src/main/java/com/pahimar/ee3/tileentity/TileEntityEE.java

package com.pahimar.ee3.tileentity;

import java.util.UUID;

import com.pahimar.ee3.network.PacketHandler;
import com.pahimar.ee3.network.message.MessageTileEntityEE;
import com.pahimar.ee3.reference.Names;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.Packet;
import net.minecraft.tileentity.TileEntity;
import net.minecraftforge.common.UsernameCache;
import net.minecraftforge.common.util.ForgeDirection;

public class TileEntityEE extends TileEntity {
    protected ForgeDirection orientation;
    protected byte state;
    protected String customName;
    protected UUID ownerUUID;

    public TileEntityEE() {
        orientation = ForgeDirection.SOUTH;
        state = 0;
        customName = "";
        ownerUUID = null;
    }

    public ForgeDirection getOrientation() {
        return orientation;
    }

    public void setOrientation(ForgeDirection orientation) {
        this.orientation = orientation;
    }

    public void setOrientation(int orientation) {
        this.orientation = ForgeDirection.getOrientation(orientation);
    }

    public short getState() {
        return state;
    }

    public void setState(byte state) {
        this.state = state;
    }

    public String getCustomName() {
        return customName;
    }

    public void setCustomName(String customName) {
        this.customName = customName;
    }

    public UUID getOwnerUUID() {
        return ownerUUID;
    }

    public String getOwnerName() {
        if (ownerUUID != null) {
            return UsernameCache.getLastKnownUsername(ownerUUID);
        }

        return "Unknown";
    }

    public void setOwner(EntityPlayer entityPlayer) {
        this.ownerUUID = entityPlayer.getPersistentID();
    }

    public void setOwnerUUID(UUID ownerUUID) {
        this.ownerUUID = ownerUUID;
    }

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

        if (nbtTagCompound.hasKey(Names.NBT.DIRECTION)) {
            this.orientation
                = ForgeDirection.getOrientation(nbtTagCompound.getByte(Names.NBT.DIRECTION
                ));
        }

        if (nbtTagCompound.hasKey(Names.NBT.STATE)) {
            this.state = nbtTagCompound.getByte(Names.NBT.STATE);
        }

        if (nbtTagCompound.hasKey(Names.NBT.CUSTOM_NAME)) {
            this.customName = nbtTagCompound.getString(Names.NBT.CUSTOM_NAME);
        }

        if (nbtTagCompound.hasKey(Names.NBT.OWNER_UUID_MOST_SIG)
            && nbtTagCompound.hasKey(Names.NBT.OWNER_UUID_LEAST_SIG)) {
            this.ownerUUID = new UUID(
                nbtTagCompound.getLong(Names.NBT.OWNER_UUID_MOST_SIG),
                nbtTagCompound.getLong(Names.NBT.OWNER_UUID_LEAST_SIG)
            );
        }
    }

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

        nbtTagCompound.setByte(Names.NBT.DIRECTION, (byte) orientation.ordinal());
        nbtTagCompound.setByte(Names.NBT.STATE, state);

        if (this.hasCustomName()) {
            nbtTagCompound.setString(Names.NBT.CUSTOM_NAME, customName);
        }

        if (this.hasOwner()) {
            nbtTagCompound.setLong(
                Names.NBT.OWNER_UUID_MOST_SIG, ownerUUID.getMostSignificantBits()
            );
            nbtTagCompound.setLong(
                Names.NBT.OWNER_UUID_LEAST_SIG, ownerUUID.getLeastSignificantBits()
            );
        }
    }

    public boolean hasCustomName() {
        return customName != null && customName.length() > 0;
    }

    public boolean hasOwner() {
        return ownerUUID != null;
    }

    @Override
    public Packet getDescriptionPacket() {
        return PacketHandler.INSTANCE.getPacketFrom(new MessageTileEntityEE(this));
    }
}