import objectdraw.*;
import java.awt.*;

// A program to animate the rising and setting of the sun and moon
public class SunAndMoon extends FrameWindowController {
        
        private FilledRect field;                       // lower 1/3rd of window
        private FilledRect sky;                         // top 2/3rds of window
        private FilledOval heavenlyBody;                // the sun or the moon
        
        // Create the sky, field and orb and set their colors 
        public void begin() {
                sky = new FilledRect(0, 0, 400, 260, canvas);
                heavenlyBody = new FilledOval(100, 0, 80, 80, canvas);
                field = new FilledRect(0, 260, 400, 140, canvas);
                
                sky.setColor(Color.BLUE);
                field.setColor(Color.GREEN);
                heavenlyBody.setColor(Color.YELLOW);
        }
        
        // Make it look like night by using black, white and gray
        public void onMousePress(Location point) {
                sky.setColor(Color.BLACK);
                field.setColor(Color.GRAY);
                heavenlyBody.setColor(Color.WHITE);
        }
        
        // Make it look like a bright sunny day
        public void onMouseRelease(Location point) {
                sky.setColor(Color.BLUE);
                field.setColor(Color.GREEN);
                heavenlyBody.setColor(Color.YELLOW);
        }
        
        // Move the sun-like circle down a little bit
        public void onMouseMove(Location point) {
                heavenlyBody.move(0, 1.5);
        }

        // Move the moon-like circle up a bit
        public void onMouseDrag(Location point) {
                heavenlyBody.move(0, -1.5);
        }

}