• 坦克大战第一节——画出自己的坦克(新手篇)


          刚刚开始学习Java,对Java不是很熟悉,但是自己的兴趣挺喜欢Java。现在自己在自学Java做一个小游戏,坦克大战。

         自己现在完成了画出自己的坦克和坦克的移动方向。希望各位大神指导一下我这个刚刚学Java的新手小白。

         我会每完成一个阶段,就更新一下博客,跟进一下自己的学习进度。

        在做这个坦克大战的时候,不知道从哪里开始做起,再来自己就觉得先画出自己的坦克吧。

        下面是创建坦克类(方便以后能创建更加多的坦克),再创建自己的坦克继承坦克类。

    package tankgames;
    
    import java.awt.*;
    
    //创建坦克类
    public class Tank {
        int x,y,w,h;
        int speed;
        int direct;
        Color c1,c2,c3;
        
        public Tank(){
            x=230;
            y=300;
            w=5;
            h=60;
            speed=10;
            direct=0;
        
        }
    
        public Tank(int x, int y, int w, int h, int speed, int direct) {
            super();
            this.x = x;
            this.y = y;
            this.w = w;
            this.h = h;
            this.speed = speed;
            this.direct = direct;
        }
    }
    
    
    //创建我的坦克子类
    class MyTank extends Tank{
        //创建颜色对象,并设置颜色
        public MyTank(){
            this.c1 = new Color(128,128,128);
            this.c2 = new Color(0,255,0);
            this.c3 = new Color(0,0,255);
        }
        
        public MyTank(int x, int y, int w, int h, int speed, int direct) {
            super(x, y, w, h, speed, direct);
            this.c1 = new Color(128,128,128);
            this.c2 = new Color(0,255,0);
            this.c3 = new Color(0,0,255);
        }
    }

          创建完自己的坦克,要写个主函数来画出自己的坦克,以下是画出自己的坦克:

    package tankgames;
    
    import java.awt.*;
    import java.awt.event.KeyEvent;
    import java.awt.event.KeyListener;
    import javax.swing.*;
    
    public class TankGame extends JFrame{
        private static final long serialVersionUID = 1L;
        
        MyPanel mp;
    
        public static void main(String[] args) {
            new TankGame().setVisible(true);
    
        }
        
        public TankGame(){
            this.setTitle("坦克大战");
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            this.setResizable(false);
            this.setBounds(100, 100, 600, 500);
            
            //创建我的面板对象,并添加到我的窗体里面
            mp = new MyPanel();
            this.getContentPane().add(mp);
            
            //注册键盘事件监听
            this.addKeyListener(mp);
        }
    
    }
    
    //创建我的面板子类
    class MyPanel extends JPanel implements KeyListener{
        MyTank myTank;
        private static final long serialVersionUID = 1L;
        
        public MyPanel(){
            this.setLayout(null);
            myTank = new MyTank();
        }
        
        //面板容器的设置和组件在面板容器里显示
        public void paint(Graphics g){
            super.paint(g);
            g.setColor(new Color(255,255,221));
            g.fill3DRect(0, 0, 500, 400, false);
            drawTank(myTank,g);
        }
        
        //画坦克
        public void drawTank(Tank t,Graphics g){
            int x = t.x, y = t.y, w = t.w, h = t.h;
            //画出向上的坦克
            if(t.direct == 0){
                Graphics2D g2d = (Graphics2D)g;
                g.setColor(t.c1);
                g.fill3DRect(x, y, w, h, false);
                g.fill3DRect(x+7*w, y, w, h, false);
                g.setColor(t.c2);
                g.fill3DRect(x+w, y+2*w, 6*w, 8*w, false);
                g.fillOval(x+2*w, y+4*w, 4*w, 4*w);
                g2d.setColor(t.c3);
                g2d.setStroke(new BasicStroke(5.0f));
                g2d.drawLine(x+4*w, y, x+4*w, y+6*w);
            }
            //画出向下的坦克
            else if(t.direct == 2){
                Graphics2D g2d = (Graphics2D)g;
                g.setColor(t.c1);
                g.fill3DRect(x, y, w, h, false);
                g.fill3DRect(x+7*w, y, w, h, false);
                g.setColor(t.c2);
                g.fill3DRect(x+w, y+2*w, 6*w, 8*w, false);
                g.fillOval(x+2*w, y+4*w, 4*w, 4*w);
                g2d.setColor(t.c3);
                g2d.setStroke(new BasicStroke(5.0f));
                g2d.drawLine(x+4*w, y+6*w, x+4*w, y+12*w);
            }
            //画出向左的坦克
            else if(t.direct == 3){
                Graphics2D g2d = (Graphics2D)g;
                g.setColor(t.c1);
                g.fill3DRect(x, y, h, w, false);
                g.fill3DRect(x, y+7*w, h, w, false);
                g.setColor(t.c2);
                g.fill3DRect(x+2*w, y+w, 8*w, 6*w, false);
                g.fillOval(x+4*w, y+2*w, 4*w, 4*w);
                g2d.setColor(t.c3);
                g2d.setStroke(new BasicStroke(5.0f));
                g2d.drawLine(x, y+4*w, x+6*w, y+4*w);
            }
            //画出向右的坦克
            else if(t.direct ==1){
                Graphics2D g2d = (Graphics2D)g;
                g.setColor(t.c1);
                g.fill3DRect(x, y, h, w, false);
                g.fill3DRect(x, y+7*w, h, w, false);
                g.setColor(t.c2);
                g.fill3DRect(x+2*w, y+w, 8*w, 6*w, false);
                g.fillOval(x+4*w, y+2*w, 4*w, 4*w);
                g2d.setColor(t.c3);
                g2d.setStroke(new BasicStroke(5.0f));
                g2d.drawLine(x+6*w, y+4*w, x+12*w, y+4*w);
            }
        }
    
        @Override
        public void keyTyped(KeyEvent e) {
            
        }
        //我的坦克移动
        @Override
        public void keyPressed(KeyEvent e) {
            //向左移动
            if(e.getKeyCode() == KeyEvent.VK_LEFT || e.getKeyCode() == KeyEvent.VK_A){
                myTank.x -= myTank.speed;
                myTank.direct = 3;
            }
            //向右移动
            else if(e.getKeyCode() == KeyEvent.VK_RIGHT || e.getKeyCode() == KeyEvent.VK_D){
                myTank.x += myTank.speed;
                myTank.direct = 1;
            }
            //向上移动
            else if(e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_W){
                myTank.y -= myTank.speed;
                myTank.direct =0;
            }
            //向下移动
            else if(e.getKeyCode() == KeyEvent.VK_DOWN || e.getKeyCode() == KeyEvent.VK_S){
                myTank.y += myTank.speed;
                myTank.direct = 2;
            }
            //关闭游戏
            else if(e.getKeyCode() == KeyEvent.VK_ESCAPE){
                System.exit(0);
            }
            //刷新图形
            this.repaint();
        }
    
        @Override
        public void keyReleased(KeyEvent e) {
            
        }
    
    }

         我画自己的坦克只是计算好位置,画出图形。

        再来自己到最后,有一个疑惑,自己不懂。

       坦克每次改变方向移动时,能不能有更加方便的方法来封装上面画图形时自己手动改变位置?若画其他坦克,是不是还要自己手动改变坦克的位置?这里自己觉得处理不是很好,现在还在想怎么能更加完美,更加方便。

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  • 原文地址:https://www.cnblogs.com/HHHY/p/9939659.html
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