Runner.java

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)
import javax.swing.*;

/**
 * Write a description of class Runner here.
 * 
 * @author Stegger 
 * @version 1
 */
public class Runner extends SmoothMover
{
    public static final double RUNNER_BASE_SPEED = 1.0;
    public static final double BASE_SPEED_ADDITION_RANGE = 4.0;
    public static final double RANDOM_MOVE_FACTOR = 3.0;
    
    private double baseSpeed;
    private boolean hasFinished;
    private int position;
    private String name;
    private StartRaceBtn startRaceBtn;
    private TextArea txtArea;
    private int odds;

    /**
     * Construct a new runner
     */
    public Runner(String name, StartRaceBtn startRaceBtn)
    {
        this.name = name;
        this.startRaceBtn = startRaceBtn;
        hasFinished = false;
        position = -1; //Set the position to negative one
        odds = 2;
        baseSpeed = RUNNER_BASE_SPEED;
    }
    
    /**
     * Act - do whatever the Runner wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        if(isAtFinishLine() && !hasFinished)
        {
            RaceWorld rw = (RaceWorld) getWorld(); //Get a reference to the RaceWorld
            position = rw.runnerHasFinished(this); //The runner tells the world that is has finished
            hasFinished = true; //I switch this variable to true so I only finish once
        }
        
        if(!startRaceBtn.isRaceOn() && isGettingClicked())
        {
            String name = javax.swing.JOptionPane.showInputDialog("Please enter name");
            if(name != null)
            {
                setName(name);
            }
        }
        
        if(startRaceBtn.isRaceOn() && !isAtEdge()) //The runner will keep running to the end of the world
        {
            if(Greenfoot.getRandomNumber(100)<3)
            {
                 double addition = (((double)Greenfoot.getRandomNumber(100))/100.0) - 0.5;
                 baseSpeed = baseSpeed + addition;
                 if(baseSpeed < 0.0)
                 {
                     baseSpeed = 0.0;
                 }
            }
            move(baseSpeed);
        }
    }
    
    public int getOdds()
    {
        return odds;
    }
    
    public int getPosition()
    {
        return position;
    }
    
    /**
     * Get name of the wombat
     */
    public String getName()
    {
        return name;
    }
    
    public void setName(String name)
    {
        this.name = name;
        if(txtArea != null)
        {
            getWorld().removeObject(txtArea);
        }
        txtArea = new TextArea(name, this, 25);
        getWorld().addObject(txtArea,0,0);
    }
    
    /**
     * Check to see if the Runner is at the finish line
     */
    public boolean isAtFinishLine()
    {
        FinishLine fl = (FinishLine) getOneIntersectingObject(FinishLine.class);
        return fl != null;
    }
    
}