基于Java坦克大战小游戏设计（1）
还是采用上学期学习到的设计模式，抽点时间写下这个游戏，游戏逻辑部分先写简单一点的，主要想加深对java设计、模块化等方面的理解。
首先先写Element包下各个元素的类：包括子弹、坦克、树木、河流、家、墙、血包 以及这些元素的基类。
其中基类包含这些类的共同属性和方法：坐标x、y ， 一组图片 ， 大小width、height ， 绘制方法draw（） ， 获取矩形方法getRec（）【用来简单判断是否发生碰撞】等。
树木、河流、墙不用多加属性或者重写什么方法 ， 家的话需要重写draw方法，画家的同时顺便把家周围的一圈墙也画进去。
子弹要新加入的属性、方法有：速度、方向、类型（敌人的或者自己的...待确定）、是否存在、以及加入方向与图片的映射集合map等。判断是否出界，移动，绘制等方法。
血包的话要加入移动方法move（），比较简便的做法是可以选定几个坐标，然后在这几个坐标中随机移动。
坦克类：待完成中......
其实移动方法应该写成接口......
代码：
package element;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Rectangle;
public class BasicElement {
public static int width;
public static int height;
int x,y;
public static Image[] images = null;
public BasicElement(int x,int y,Image[] images) {
this.x = x;
this.y = y;
this.images = images;
}
public void draw(Graphics g) {
g.drawImage(images[0],x,y,null);
}
public Rectangle getRect() {
return new Rectangle(x,y,width,height);
}
public static int getWidth() {
return width;
}
public static void setWidth(int width) {
BasicElement.width = width;
}
public static int getHeight() {
return height;
}
public static void setHeight(int height) {
BasicElement.height = height;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public static Image[] getImages() {
return images;
}
public static void setImages(Image[] images) {
BasicElement.images = images;
}
}
package element;
import java.awt.Graphics;
import java.awt.Image;
import java.util.Random;
public class BloodBag extends BasicElement {
public BloodBag(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
public int step = 0;
public boolean isExist = false;
public static Random r;
public int[][] position = { { 155, 196 }, { 500, 58 }, { 80, 340 },
{ 99, 199 }, { 345, 456 }, { 123, 321 }, { 258, 413 } };
@Override
public void draw(Graphics g) {
// TODO Auto-generated method stub
if(r.nextInt(100) > 98) {
isExist = true;
move();
}
if(!isExist) {
return ;
}
g.drawImage(this.images[0], x, y, null);
}
private void move() {
// TODO Auto-generated method stub
step++;
if(step==position.length) {
step = 0;
}
this.x = position[step][0];
this.y = position[step][1];
}
public boolean isExist() {
return isExist;
}
public void setExist(boolean isExist) {
this.isExist = isExist;
}
}
package element;
import java.awt.Graphics;
import java.awt.Image;
import java.util.HashMap;
import java.util.Map;
public class Bullet extends BasicElement{
public String dir;
public static int speed;
public boolean isExist = false;
public String type;
private static Map map = new HashMap();
static {
map.put("L", images[0]);
map.put("U", images[1]);
map.put("R", images[2]);
map.put("D", images[3]);
}
public Bullet(int x, int y, Image[] images, String dir,String type) {
super(x, y, images);
// TODO Auto-generated constructor stub
this.dir = dir;
this.type = type;
}
public void move() {
switch(dir) {
case "L":
x-=speed;
break;
case "U":
y-=speed;
break;
case "R":
x+=speed;
break;
case "D":
y+=speed;
break;
default:
break;
}
}
@Override
public void draw(Graphics g) {
// TODO Auto-generated method stub
g.drawImage(map.get(dir),x,y,null);
move();
}
public String getDir() {
return dir;
}
public void setDir(String dir) {
this.dir = dir;
}
public static int getSpeed() {
return speed;
}
public static void setSpeed(int speed) {
Bullet.speed = speed;
}
public boolean isExist() {
return isExist;
}
public void setExist(boolean isExist) {
this.isExist = isExist;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public boolean outOfBounds() {
if(x<0 || y<0 || x>FrameWidth || y>FrameHeight)
return true;
return false;
}
}
package element;
import java.awt.Image;
public class CommonWall extends BasicElement {
public CommonWall(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
}
package element;
import java.awt.Graphics;
import java.awt.Image;
public class Home extends BasicElement {
public Home(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
public boolean isExist = false;
@Override
public void draw(Graphics g) {
// TODO Auto-generated method stub
g.drawImage(this.images[0],x,y,null);
for(int i = 0;ipackage element;
import java.awt.Image;
public class MetalWall extends BasicElement {
public MetalWall(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
}
package element;
import java.awt.Image;
public class River extends BasicElement{
public River(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
}
package element;
import java.awt.Image;
public class Tree extends BasicElement{
public Tree(int x, int y, Image[] images) {
super(x, y, images);
// TODO Auto-generated constructor stub
}
}