//  Control panel
//
//  Author  Matthew Caryl
//  Created 25.2.97
//
//  Although under copywrite to the author (Matthew Caryl) this code can be copied and modified for non-commercial
//  purposes as long as any derivatives contain this condition.

package Bugs;

import java.awt.Frame;
import java.awt.Button;
import java.awt.Panel;
import java.awt.Choice;
import java.awt.Label;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.Event;
import java.lang.Thread;

final class Control extends Frame implements Runnable {
    World   owner;
    Bug     bug;    // only present for bug control
    Button  reset;  // only present for speed control
    Button  cancel;
    Panel   control;
    Panel   display;
    Choice  speed;  // only present for speed control
    Label   age;    // only present for bug control
    Label   energy; // only present for bug control
    Thread  monitor;// only present for bug control
    
    public Control (World world) {
        super("Bug Control");
        
        owner = world;
        
        // Add an cancel button to the base of the frame
        cancel = new Button("Cancel");
        control = new Panel();
        control.setLayout(new FlowLayout(FlowLayout.CENTER, 15, 15));
        control.add(cancel);
        this.add("South", control);
        
        // Add an signature to the top of the frame
        Panel signiture = new Panel();
        signiture.setLayout(new FlowLayout(FlowLayout.CENTER, 15, 15));
        signiture.add(new Label("Matthew Caryl  1997"));
        this.add("North", signiture);
        
        // Add display to contain controls
        display = new Panel();
        Panel align = new Panel();
        align.setLayout(new FlowLayout(FlowLayout.CENTER, 5, 5));
        align.add("Center", display);
        this.add("Center", align);
        }
    
    public Control(World W, int S) {
        this(W);
        
        // Reset button to restart simulation
        reset = new Button("Reset");
        control.add(reset);
        
        speed = new Choice();
        speed.addItem("Maximum");
        speed.addItem("Medium");
        speed.addItem("Minimum");
        speed.select(S);
        
        display.setLayout(new GridLayout(1, 2, 5, 5)); // 1 rows, 2 columns, 5 horizontal, 5 verticle
        display.add(new Label("Speed"));
        display.add(speed);
        
        this.pack();
        this.show();
        }
    
    public Control(World W, Bug B) {
        this(W);
        
        bug = B;
        bug.select();
        
        age = new Label();
        energy = new Label();
        
        // convert gene values into percentage probabilities
        int genes[] = new int[6];
        int total = 0;
        for (int i = 5; i >= 0; i--) {
            genes[i] = 1 << bug.gene(i);
            total += genes[i];
            }
        for (int i = 5; i >= 0; i--)
            genes[i] = Math.round((float) genes[i] / (float) total * 100f);
        
        display.setLayout(new GridLayout(4, 4, 5, 5)); // 4 rows, 4 columns, 5 horizontal, 5 verticle
        display.add(new Label("Age"));
        display.add(age);
        display.add(new Label("Energy"));
        display.add(energy);
        display.add(new Label("Forward"));
        display.add(new Label(Integer.toString(genes[0]) + "%"));
        display.add(new Label("Reverse"));
        display.add(new Label(Integer.toString(genes[3]) + "%"));
        display.add(new Label("Right"));
        display.add(new Label(Integer.toString(genes[1]) + "%"));
        display.add(new Label("Left"));
        display.add(new Label(Integer.toString(genes[5]) + "%"));
        display.add(new Label("Hard Right"));
        display.add(new Label(Integer.toString(genes[2]) + "%"));
        display.add(new Label("Hard Left"));
        display.add(new Label(Integer.toString(genes[4]) + "%"));
        
        // Thread to update bug information periodically
        monitor = new Thread(this);
        try {
            monitor.setPriority(Thread.MAX_PRIORITY);
            }
        catch (IllegalArgumentException e) {
            System.err.println("Report to programmer - control");
            }
        monitor.start();
        
        this.pack();
        this.show();
        }
    
    public void dispose() {
        if (monitor != null)
            stop();
        if (bug != null)
            bug.unselect();
        }
    
    public void stop() {
        monitor.stop();
        monitor = null;
        }
    
    public void run() {
        while (true) {
            age.setText(Integer.toString(bug.age()));
            energy.setText(Integer.toString(bug.energy()));
            if (bug.dead())
                stop();
            try {
                monitor.sleep(1000);
                }
            catch (InterruptedException e) {
                // do nothing
                }
            }
        }
    
    public boolean action(Event e, Object arg) {
        if (e.target == reset|| e.target == cancel) {
            if (e.target == reset)
                owner.reset();
            else if (speed != null)
                owner.cancel(); // cancel only required for speed control
            this.hide();
            this.dispose();
            return true;
            }
        else if (e.target == speed) {
            owner.speed(speed.getSelectedIndex());
            return true;
            }
        else
            return false;
        }
    }