afloydwiremod/src/main/java/net/brokenmoon/afloydwiremod/gui/GuiWiring.java

package net.brokenmoon.afloydwiremod.gui;

import net.brokenmoon.afloydwiremod.api.AbstractWireTileEntity;
import net.brokenmoon.afloydwiremod.api.WireConnection;
import net.brokenmoon.afloydwiremod.item.ToolWiring;
import net.minecraft.src.EntityPlayer;
import net.minecraft.src.GuiButton;
import net.minecraft.src.GuiScreen;
import org.lwjgl.input.Mouse;

public class GuiWiring extends GuiScrollable {
    private ToolWiring tool;

    private int x;
    private int y;
    private int z;
    private AbstractWireTileEntity wireEntity;
    @Override
    public void initGui() {
        //this.height - 240 is top
        //This.width / 2 - 214 is left
        //Inputs
        if(wireEntity.inputs != null && this.tool.type.equals("output")) {
            for (int i = 0; i < wireEntity.inputs.length; i++) {
                this.controlList.add(new GuiButtonExtended(i + 1, this.width, wireEntity.inputs[i].buttonString, "Input", wireEntity.inputs[i].slot));
            }
        }
        //Outputs
        if(wireEntity.outputs != null && !this.tool.type.equals("output")) {
            for (int i = 0; i < wireEntity.outputs.length; i++) {
                this.controlList.add(new GuiButtonExtended(i + 1, this.width, wireEntity.outputs[i].buttonString, "Output", wireEntity.outputs[i].slot));
            }
        }
    }

    public GuiWiring(EntityPlayer player, ToolWiring tool, AbstractWireTileEntity wireEntity, int x, int y, int z) {
        super.initGui();
        this.tool = tool;
        this.x = x;
        this.y = y;
        this.z = z;
        this.wireEntity = wireEntity;
    }

    @Override
    protected void actionPerformed(GuiButton guiButton){
        this.actionPerformed((GuiButtonExtended)guiButton);
    }
    protected void actionPerformed(GuiButtonExtended guibutton) {
        if(this.tool.type.equals("unpaired")) {
            if (guibutton.type.equals("Input")) {
                this.tool.type = "input";
                this.tool.slot = guibutton.slot;
                this.tool.x = x;
                this.tool.y = y;
                this.tool.z = z;
            } else if (guibutton.type.equals("Output")) {
                this.tool.type = "output";
                this.tool.slot = guibutton.slot;
                this.tool.x = x;
                this.tool.y = y;
                this.tool.z = z;
            }
        } else if(this.tool.type.equals("output")) {
            this.wireEntity.inputs[guibutton.slot].wire = new WireConnection(tool.x, tool.y, tool.z, guibutton.slot, tool.slot);
            tool.type = "unpaired";
        }
        this.mc.displayGuiScreen(null);
    }
}