4.5打砖块游戏

package view;import java.awt.Color;import java.awt.Frame;import java.awt.Graphics;import java.awt.Panel;import java.awt.Point;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;public class GameFrame {public GameFrame(){Frame f=new Frame("Block Game");GamePanel gp=new GamePanel();Thread t=new Thread(gp);t.start();f.setLocation(100,100);f.setSize(500,500);f.add(gp);f.setVisible(true);}public static void main(String args[]){new GameFrame();}}

class GamePanel extends Panel implements KeyListener,Runnable{private Pad p;private Block bl;private Ball bal;int width=500;int height=500;public boolean padMoveRight;public boolean padMoveLeft;public boolean ballMove;public GamePanel(){p=new Pad(this);bl=new Block(this);bal=new Ball(this,p,bl);addKeyListener(this);}public void gameUpdate(){p.update();bl.update();bal.update();}public void paint(Graphics g){p.draw(g);bl.draw(g);bal.draw(g);}@Overridepublic void keyTyped(KeyEvent e) {// TODO 自动生成的方法存根}@Overridepublic void keyPressed(KeyEvent e) {// TODO 自动生成的方法存根int keycode=e.getKeyCode();if(keycode==KeyEvent.VK_LEFT){padMoveLeft=true;}if(keycode==KeyEvent.VK_RIGHT){padMoveRight=true;}}@Overridepublic void keyReleased(KeyEvent e) {// TODO 自动生成的方法存根int keycode=e.getKeyCode();if(keycode==KeyEvent.VK_RIGHT){padMoveRight=false;}if(keycode==KeyEvent.VK_LEFT){padMoveLeft=false;}}@Overridepublic void run() {// TODO 自动生成的方法存根while(true){try {Thread.sleep(1000);} catch (InterruptedException e) {// TODO 自动生成的 catch 块e.printStackTrace();}gameUpdate();//游戏刷新repaint();//重绘}}}

class Pad{public Point location;//挡板坐标public Point size;//挡板尺寸private GamePanel gameP;public Pad(GamePanel gp){gameP=gp;size=new Point(100,20);location =new Point((gp.width-size.x)/2,gp.height-size.y);//初始位置位于屏幕正下方}public void update(){if(gameP.padMoveRight){//如果玩家按下右键if(location.x+size.x<gameP.width){//如果右边沿没有出界location.x+=10;//挡板向右移动}//if}//ifif(gameP.padMoveLeft){if(location.x>0){location.x-=10;}}}//updatepublic void draw(Graphics g){g.setColor(Color.BLACK);g.fillRoundRect(location.x,location.y,size.x,size.y,10,10);}}

class Block{private GamePanel gameP;private Point allocation; //存放砖块的分布，行数*列数public Point location[]; //存放每个砖块的坐标public Point size; //存放砖块的尺寸，长*宽public int num; //存放砖块的数量public boolean exist[]; //标识砖块是否被敲击public Block(GamePanel gp){gameP=gp;num=20;allocation=new Point(4,5);//砖块分布为4行*5列size=new Point(50,20);location=new Point[num];for(int i=0;i<allocation.y;i++){for(int j=0;j<allocation.x;j++){//初始化各砖块的坐标值，让每个砖块均匀的分布在屏幕上部区域location[i*allocation.x+j]=new Point((gp.width/allocation.x-size.x)/2+j*(gp.width/allocation.x),(i*2+1)*size.y);}}exist=new boolean[num];//初始化exsit数组for(int i=0;i<num;i++){exist[i]=true;}}public void update(){for(int i=0;i<num;i++){if(exist[i]==false){//如果砖块被敲击，将其坐标设置在程序窗口范围之外location[i].setLocation(gameP.width+1,gameP.height+1);}}}public void draw(Graphics g){g.setColor(Color.gray);for(int i=0;i<num;i++){if(exist[i]==true){g.fillRect(location[i].x,location[i].y,size.x,size.y);}}}}

class Ball{private GamePanel gameP;private Block blk;private Pad pd;private Point location;//小球的坐标private int diameter;private int dx;private int dy;public Ball(GamePanel gp,Pad p,Block bk){gameP=gp;blk=bk;pd=p;location=new Point(pd.location.x+(pd.size.x-diameter)/2,pd.location.y-pd.size.y);//小球初始值位于挡板正中央dx=10;dy=-5;diameter=20;}public void update(){if(gameP.ballMove){//若小球处于运动状态location.x+=dx;location.y+=dy;wallBounced();//小球与墙壁碰撞检测blockBounced();//小球与砖块碰撞检测padBounced();//小球与挡板碰撞检测}else{//若小球停止运动，回到挡板正中央location.setLocation(pd.location.x+(pd.size.x-diameter)/2,pd.location.y-pd.size.y);}}public void draw(Graphics g){g.setColor(Color.blue);g.fillOval(location.x, location.y, diameter, diameter);}

private boolean Bounce(Point bk_location,Point bk_size){if((location.x>bk_location.x-diameter) && (location.x<bk_location.x+bk_size.x) &&(location.y>bk_location.y-diameter) &&(location.y<bk_location.y+bk_size.y)){return true;}else{return false;}}

private void padBounced() {// TODO 自动生成的方法存根Point local1,local2,local3,size1,size2,size3;//水平方向按1:5:1的比例分割挡板，垂直方向只取挡板高度的1/4local1=pd.location;size1=new Point(pd.size.x*1/7,pd.size.y/4);local2=new Point(pd.location.x+pd.size.x*1/7,pd.location.y);size2=new Point(pd.size.x*5/7,pd.size.y/4);local3=new Point(pd.location.x+pd.size.x*6/7,pd.location.y);size3=new Point(pd.size.x*1/7,pd.size.y/4);if(Bounce(local2,size2)){dy=-dy;}else if(Bounce(local1,size1)){if(dx>0){dx=-dx;}dy=-dy;}else if(Bounce(local3,size3)){if(dx<0){dx=-dx;}dy=-dy;}}

private void blockBounced() {// TODO 自动生成的方法存根Point local1,local2,local3,size1,size2,size3;for(int i=0;i<blk.num;i++){//按照1:8:1的比例将每个砖块划分为三个区域R1、R2、R3local1=blk.location[i];size1=new Point(blk.size.x*1/10,blk.size.y);local2=new Point(blk.location[i].x+blk.size.x*1/10,blk.location[i].y);size2=new Point(blk.size.x*8/10,blk.size.y);local3=new Point(blk.location[i].x+blk.size.x*9/10,blk.location[i].y);size3=new Point(blk.size.x*1/10,blk.size.y);//分别对三个区域进行碰撞检测if(Bounce(local2,size2)){//若碰撞发生在R2区dy=-dy;blk.exist[i]=false;}else if(Bounce(local1,size1)){if(dx>0){dx=-dx;}else {dy=-dy;}blk.exist[i]=false;}else if(Bounce(local3,size3)){if(dx<0){dx=-dx;}else{dy=-dy;}blk.exist[i]=false;}}}

private void wallBounced() {// TODO 自动生成的方法存根if((location.x>gameP.width-diameter)||(location.x<0)){//小球碰撞到左边或右边墙壁，改变水平运动方向dx=-dx;}if(location.y<0){//小球碰到上方墙壁，改变垂直运动方向dy=-dy;}if(location.y>gameP.height){//小球落出窗口下边界，让小球停止运动gameP.ballMove=false;}}}