swing 飞机大战二实现地图的滚动

川长思鸟来 2022-06-14 05:21 232阅读 0赞

我的想法是先创建一个，保存图片和y坐标，主要就是靠画图片的y坐标来制造地图向下移动的感觉

创建地图类，4张背景图片可供选择

public class Map{
    	public int y;
    	public ImageIcon img1;
    	public ImageIcon img2;
    	public ImageIcon img3;
    	public ImageIcon img4;
    	public Map(int y){
    		this.y = y;
    		img1 = new ImageIcon("img/bj-1.jpg");
    		img2 = new ImageIcon("img/bj-2.jpg");
    		img3 = new ImageIcon("img/bj-3.jpg");
    		img4 = new ImageIcon("img/bj-4.jpg");
    	}
    }

在创建地图对象，需要两个对象，轮换刷图，当一个向下滚动看不见后，就将它的y坐标改成负的，通过线程，增加y值

package pass;
    
    import java.awt.Graphics;
    import java.awt.event.MouseAdapter;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseListener;
    import java.util.Vector;
    
    import javax.swing.JFrame;
    import javax.swing.JPanel;
    
    import Game.FoeFly;
    import Game.Map;
    import Game.MyFly;
    
    /**
     * 
     * @author Administrator
     *关卡类，
     */
    public class No1 { //初始化面板
    	PanelNo1 mp;
    	public No1(JFrame jf){
    		mp = new PanelNo1();
    		jf.add(mp);
    		jf.setSize(400, 600);
    		mp.setBounds(0, 0, 500, 600);
    	}
    }
    class PanelNo1 extends JPanel implements Runnable{
    	MyFly myfly;
    	Vector<FoeFly> foefly;
    	Vector<Map> imgarr;
    	public PanelNo1() {
    		myfly = new MyFly(240, 500, 100, true);
    		foefly = new Vector<>();
    		imgarr = new Vector<>();
    		imgarr.add(new Map(0));
    		imgarr.add(new Map(-600)); //初始化地图位置
    		new Thread(this).start();
    		this.addMouseListener(new MouseAdapter() {
    			public void mouseEntered(MouseEvent e){
    				myfly.x = e.getX();
    				myfly.y = e.getY();
    				System.out.println(e.getX()+" "+e.getY());
    			}
    		});
    	}
    	public void paint(Graphics g){
    		super.paint(g);
    		//进行地图的绘制，和画飞机画子弹
    		drawMap(g); //画地图
    		drawMyFly(g); //画我的飞机
    		drawMyBomb(g); //画自己的炸弹
    		drawFoeFly(g); //敌人飞机
    		drawFoeBomb(g); //敌人弹
    		this.repaint();
    	}
    	public void drawMap(Graphics g){
    		for (int i=0; i<2; i++){
    			g.drawImage(imgarr.get(i).img1.getImage(), 0, imgarr.get(i).y, 400, 600 ,null);
    			System.out.println(imgarr.get(i).y);
    		}
    	}
    	public void drawMyFly(Graphics g){
    		
    	}
    	public void drawMyBomb(Graphics g){
    		
    	}
    	public void drawFoeFly(Graphics g){
    		
    	}
    	public void drawFoeBomb(Graphics g){
    		
    	}
    	@Override
    	public void run() {
    		while (true){
    			try {
    				Thread.sleep(10);
    			} catch (Exception e) {
    				e.printStackTrace();
    			}
    			for (int i=0; i<2; i++){ //刷新地图
    				imgarr.get(i).y += 1;
    				if (imgarr.get(i).y >= 600){
    					imgarr.get(i).y = -599; //轮换交替
    				}
    			}
    		}
    	}
    }