超级玛丽游戏开发三（障碍物和敌人的设置）

超级玛丽游戏开发三（障碍物和敌人的设置）

超级马里奥游戏开发（障碍物和敌人的设置）

目录

         1.敌人类Enemy

2. 障碍物类Object

3.背景类Background

4.界面类中的run方法

实现功能：

加入敌人和障碍物对象，敌人可以移动。

1.敌人类Enemy

• 同样在界面类MFrame的run方法里面绘制敌人的图片，因此我们的敌人也像之前的马里奥一样，需要被封装成一个类。
• 敌人类对外必须能提供自己此刻的图像、位置、大小。
• 敌人有自己的运动轨迹，因此需要实现Runnable接口，使用线程。

package Mario_7_12;import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;public class Enemy implements Runnable{private Thread tr;private List <BufferedImage> imagesL = new ArrayList<>();//图像集合private List <BufferedImage> imagesR = new ArrayList<>();//图像集合private volatile int index;//当前显示的图片索引private volatile int posx,posy,dx,dy;//位置和水平速度，竖直方向速度private int width,height;//大小private int l,r,up,down;//运动范围private volatile boolean diretL,directUp;//运动方向private int switchN;/** 构造函数* */public Enemy(int posx, int posy,int dx, int dy, List <BufferedImage> imagesL,List <BufferedImage> imagesR,int width, int height,int l,int r,int up, int down){this.posx = posx;this.posy = posy;this.imagesL = imagesL;this.imagesR = imagesR;this.width = width;this.height = height;this.l = l;this.r = r;this.up = up;this.down = down;diretL = false;directUp = false;this.dx = dx;this.dy = dy;index = 0;switchN = 5;tr = new Thread(this);tr.start();//启动线程}/** 在线程中运动* */@Overridepublic void run(){while(true){posy += dy;posx += dx;//判断边界if(posx<l) {posx = l;dx = -dx; diretL = false;}if(posx+width>r)  {posx = r-width;dx = -dx;  diretL = true;}if(posy<up){posy = up; dy = -dy; directUp = false;}if(posy+height>down){posy = down - height; dy = -dy; directUp = true;}switchN--;if(switchN == 0){index = (index+1)%2;//切换图片switchN = 5;}try {Thread.sleep(50);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}}}/** 得到当前的图片* */public BufferedImage getImage(){if(diretL)(index);else (index);}	/** 得到x坐标* */public int getX(){return posx;}/** 得到y坐标* */public int getY(){return posy;}/** 得到宽* */public int getWidth(){return width;}/** 得到高* */public int getHeight(){return height;}}

2. 障碍物类Object

障碍物的信息比较简单，只需要知道它的位置和大小。

package Mario_7_12;import java.awt.image.BufferedImage;public class Object {private int l,r,up,down;//边界private BufferedImage image;//图像public Object(int l, int r, int up, int down, BufferedImage image){this.l = l;this.r = r;this.up = up;this.down = down;this.image = image;}public int getL(){return l;}public int getR(){return r;}public int getUp(){return up;}public int getDown(){return down;}public BufferedImage getImage(){return image;}
}

3.背景类Background

• 随着我们的移动我们的背景也要随之改变
• 一个背景中有独有的背景图片、障碍物、敌人
• 因此我们把背景包装成一个类

package Mario_7_12;import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;public class Background {private BufferedImage bgImage = null;//背景图片private int sort;//第几个场景private List<Enemy> allEnemies = new ArrayList<Enemy>();//敌人private List<Object> allConstructions = new ArrayList<Object>();//障碍物/** 构造函数，根据创建的是第几个场景来初始化障碍物和敌人* */public Background(int sort){switch(sort){case 1:setBg1();break;}}/** 第一个场景* */public void setBg1(){bgImage = StaticValue.bgImg1;//背景List <BufferedImage> mushL = StaticValue.mushroomImgsL;//蘑菇怪List <BufferedImage> mushR = StaticValue.mushroomImgsR;//蘑菇怪List <BufferedImage> turtleL = StaticValue.turtleImgsL;//乌龟怪List <BufferedImage> turtleR = StaticValue.turtleImgsR;//乌龟怪List <BufferedImage> flowerUp = StaticValue.flowerImgs;//花怪List <BufferedImage> flowerDown = StaticValue.flowerImgs;//花怪Enemy enemy1 = new Enemy(800,445,4,0,mushL,mushR,30,50,400,900,0,600);Enemy enemy2 = new Enemy(0,445,2,0,turtleL,turtleR,40,60,0,300,0,600);Enemy enemy3 = new Enemy(330,415,0,1,flowerUp,flowerDown,55,80,0,900,270,430);allEnemies.add(enemy1);allEnemies.add(enemy2);allEnemies.add(enemy3);//柱子Object object1 = new Object(300,400,360,(6));Object object2 = new Object(290,350,330,(8));Object object3 = new Object(350,420,330,(7));allConstructions.add(object1);allConstructions.add(object2);allConstructions.add(object3);//砖块Object object4 = new Object(600,650,300,(0));Object object5 = new Object(650,700,300,(4));Object object6 = new Object(700,750,300,(0));allConstructions.add(object4);allConstructions.add(object5);allConstructions.add(object6);}//得到背景图片public 	BufferedImage getBgImage(){return bgImage;}/** 得到敌人* */public List <Enemy> getEnemies(){return allEnemies;}/** 得到障碍物* */public List<Object> getObjects(){return allConstructions;}}

4.界面类中的run方法

因为在MFrame里面绘制图片，因此背景信息需要在这里画出来

增加的属性：

    private Background bg;//背景
    private int bgIndex;//第几个背景

run方法：

	/** 在线程里面绘制图片* */@Overridepublic void run() {// TODO Auto-generated method stubList <Enemy> enemies = bg.getEnemies();List<Object> objects = bg.getObjects();while(true){try {Thread.sleep(10);} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}Image bgimg = new BgImage()).getImage();//背景图片buffg.drawImage(bgimg, 0,0, null);buffg.Image(), mario.posx, mario.posy, 50, 100, null);//马里奥//敌人for(int i=0; i<enemies.size(); i++){Enemy enemy = (i);BufferedImage enemyImg = Image();buffg.drawImage(new ImageIcon(enemyImg).getImage(),X(),Y(),Width(),Height(),null );}//障碍物for(int i=0; i<objects.size(); i++){Object object = (i);BufferedImage objectImg = Image();buffg.drawImage(new ImageIcon(objectImg).getImage(),L(),Up(),R()- L(),Down() - Up(),null );}g.drawImage(buffimg, 0, 0, null);}}