/* Moving Ball */

import java.awt.*;

public class Ball
{
public double x,y,radius;
public double vx,vy; 
public Color Fillin_Color;

public Color colorFromString
(String s, Color defaultColor)
{
    Integer i;
    if (s == null) return defaultColor;
    try
    {
	i = Integer.valueOf(s,16);
	return new Color(i.intValue());
    }
    catch (NumberFormatException e)
    {
	if (s.equalsIgnoreCase("red"))
	{
	    return Color.red;
	}
	else if  (s.equalsIgnoreCase("green"))
	{
	    return Color.green;
	}
	else if (s.equalsIgnoreCase("blue"))
	{
	    return Color.blue;
	}
	else if (s.equalsIgnoreCase("black"))
	{
	    return Color.black;
	}
	else if (s.equalsIgnoreCase("white"))
	{
	    return Color.white;
	}
	else if (s.equalsIgnoreCase("gray"))
	{
	    return Color.lightGray;
	}
	else 
	{
	    return defaultColor;
	}
    }
}

public Ball()
    {
	radius = 5.0;
	x = radius;
	y = radius;
	vx = 100.0; 
	vy = 100.0;
	Fillin_Color = Color.black;
    }
    
public Ball
(double x, double y, double radius, double vx, double vy, String Fillin_Color)
    {
	this.x = x;
	this.y = y;
	this.vx = vx;
	this.vy = vy;
	this.radius = radius;
	this.Fillin_Color = colorFromString(Fillin_Color,Color.black);
    }
}