/*
 * Authors: Dietolf Ramm
 * Date:    4/1/02
 * Course:  CPS 4
 * Purpose: PRACTICE JAVA
 */
public class Clock extends GP.Behaviors.TimeLimited
{
    GP.Attributes.Values.Counter myLeft;
    GP.Attributes.Values.Counter myRight;
	
    public Clock (GP.Attributes.Values.Counter left, 
                      GP.Attributes.Values.Counter right, double minutes)
    {
	myLeft = left;
	myRight = right;
	SetLimit(minutes*60);
	SetDelay(1);	// delay 1 second between calls to Step
	myLeft.Reset();
	myLeft.Increment(minutes);
	myRight.Reset();
    }
	
    public void Step()
    {
	if (myRight.GetValue() == 0)
	{
	    myLeft.Increment(-1);
	    myRight.Increment(59);
	}
	else
	    myRight.Increment(-1);
    }
	
    public void Stop()
    {
	myLeft.Reset();
	myRight.Reset();
	GP.Shapes.Oval o = new GP.Shapes.Oval();
	o.SetPosition(new GP.Attributes.Coordinate(200,200));
	o.SetSize(new GP.Attributes.Dimension(200));
	o.SetColor(new GP.Attributes.Colors.Red());
    }
}