sillybasketball.java

书籍"Java_面向事件编程"的附带光盘代码

import objectdraw.*;

// program that displays how many times the mouse has been clicked
public class SillyBasketBall extends WindowController{

        // the Text object which displays the count
        private Text display;

        // the oval that represent the hoop
        private FramedOval hoop;

        // the number of points
        private int score;

        // initialize the counter and the text message
        public void begin()
        {
                score = 0;
                
                display = new Text("Take a shot.",
                                                        0, 350, canvas);
                display.setFontSize(16);
                display.move( (canvas.getWidth()-display.getWidth())/2, 0 );

                
                hoop = new FramedOval( (canvas.getWidth()-100)/2, 50,
                                                                100, 60, 
                                                                canvas);
        }

        // increment the counter and update the text if player scores
        public void onMouseRelease(Location point)
        {
                score = score + 2;
                display.setText("You have scored " + score + " points.");
                display.moveTo( (canvas.getWidth()-display.getWidth())/2, 350 );
        }

}