import objectdraw.*;

import java.awt.*;

 

    // A program to simulate the brightening of the sky at sunrise

public class LightenUp extends WindowController {

 

    private FilledRect sky;     // background rectangle

    private int brightness;     // brightness of sky's color

    private FilledOval sun;     // Circle that represents the sun

 

    public void begin() {

            // Create the sky and make it a dark gray

        brightness = 50;

        sky = new FilledRect( 0, 0, canvas.getWidth(), canvas.getHeight(), canvas );

        sky.setColor( new Color( brightness, brightness, brightness));

 

            // Place the sun and some brief instructions on the screen

        sun = new FilledOval( 50, 150, 100, 100, canvas);

        new Text( "Please click the mouse repeatedly", 20, 20, canvas);

    }

 

       // Brighten the sky and move the sun with each click

    public void onMouseClick(Location point) {

        brightness = brightness + 1;

        sky.setColor( new Color(brightness, brightness, brightness));

        sun.move(0, -5);

    }