멀티스레드프로그래밍2 : 풍선게임

• 클릭하면 풍선이 나타나고 위로 올라가는 풍선게임을 만들어보자.
• MouseEvent -> y축을 이동
• sleep : 반응시간

import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

public class BaloonThreadEx extends JFrame{
	JPanel p;
	
	BaloonThreadEx(){
		setTitle("Baloon");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		p = new JPanel();
		p.setLayout(null);
		p.addMouseListener(new MouseAdapter(){

			@Override
			public void mousePressed(MouseEvent e) {
				
				BaloonThread t=	new BaloonThread(e.getX(), e.getY());	
				t.start();
			}
		});
		setContentPane(p);		
		
		setSize(500,500);
		setVisible(true);
	}
	
	class BaloonThread extends Thread {
		int x,y;
		BaloonThread(int x, int y){
			this.x=x;
			this.y=y;
		}

		@Override
		public void run() {			
			ImageIcon icon = new ImageIcon("images/balloon.jpg");
			JLabel baloon = new JLabel(icon);
			baloon.setSize(60,60);
			baloon.setLocation(x, y);
			p.add(baloon);
                        
			while(y>0){
				y-=20; //0.2초마다 얼마만큼 위로 올라가는지 숫자가 클수록 빨리 올라가는 느낌 but부자연스러움
				try{
					Thread.sleep(200); //0.2초마다
				}catch(Exception e){
					e.toString();
				}
				baloon.setLocation(x, y);
				//p.repaint();
			}
			p.remove(baloon);
		}
	}

	public static void main(String[] args) {
		new BaloonThreadEx();
	}
}