什么是二维数组？
数组当中放的还是数组
int [][] arr=new int[3][2];
有3个小箱子，每个箱子2个格子。
看结果？
int [][] arr=new int[3][2];
System.out.println(arr);
System.out.println(arr[0]);
System.out.println(arr[0][0]);
System.out.println(arr.length]);
System.out.println(arr[1].length);
再看结果？
int [][] arr=new int[3][];
System.out.println(arr);
System.out.println(arr[0]);//什么结果？还是哈希值吗？
System.out.println(arr[0][0]);//这个是什么结果？
二维数组的遍历？
程序源码如下：
package com.swift; import java.awt.Point;
import java.awt.event.KeyEvent; import com.rupeng.game.GameCore; public class GameOfShuzu implements Runnable{ public static void main(String[] args) {
GameCore.start(new GameOfShuzu());
} @Override
public void run() {
GameCore.setGameSize(760, 570);
GameCore.setGameTitle("图片迷宫游戏—二维数组制作");
GameCore.loadBgView("bg.png");
//二维数组赋值15行15列，每张图片宽度50*36
int[][] arr = {{3,0,0,0,1,1,0,0,2,2,3,0,0,0,1},
{0,0,0,0,4,1,0,0,0,2,0,0,0,0,1},
{0,3,0,0,0,0,0,0,0,0,0,3,3,0,1},
{0,3,0,0,0,0,0,0,0,2,0,0,3,0,0},
{0,0,0,0,0,1,0,0,0,2,0,0,0,0,1},
{4,4,0,0,1,1,0,0,0,0,4,4,0,0,1},
{0,0,0,0,0,4,4,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},
{0,0,0,0,0,0,0,0,0,0,0,2,0,0,1},
{0,0,0,0,1,0,0,0,0,2,2,0,0,0,1},
{0,4,4,0,1,0,0,0,0,0,4,4,0,0,1},
{0,0,0,0,0,4,4,0,0,3,0,0,0,0,0},
{1,1,2,0,0,0,0,1,0,0,0,4,0,0,0},
{0,4,0,0,0,1,0,0,0,0,0,2,0,0,1},
{0,0,3,0,1,0,0,0,2,2,0,0,0,2,0}};
//二维数组遍历查看每个元素的值
for(int i=0;i<arr.length;i++) {
for(int j=0;j<arr[i].length;j++) {
System.out.print(i+"行"+j+"列 "+arr[i][j]+" | ");
}
System.out.println();
}
//计数器
int num=0;
//根据元素的值在游戏窗口中生成图片墙
for(int i=0;i<arr.length;i++) {
for(int j=0;j<arr[i].length;j++) {
if(arr[i][j]==1) {
GameCore.createImage(num);
GameCore.setImageSource(num, "1.png");
GameCore.setImagePosition(num, j*50, i*36);
num++;
}
if(arr[i][j]==2) {
GameCore.createImage(num);
GameCore.setImageSource(num, "2.png");
GameCore.setImagePosition(num, j*50, i*36);
num++;
}
if(arr[i][j]==3) {
GameCore.createImage(num);
GameCore.setImageSource(num, "3.png");
GameCore.setImagePosition(num, j*50, i*36);
num++;
}
if(arr[i][j]==4) {
GameCore.createImage(num);
GameCore.setImageSource(num, "4.png");
GameCore.setImagePosition(num, j*50, i*36);
num++;
}
}
System.out.println();
} // 女精灵
int spriteGirl = 0;
GameCore.createSprite(spriteGirl, "butterfly");
GameCore.playSpriteAnimate(spriteGirl, "fly", true);
GameCore.setSpritePosition(spriteGirl, 100, 20); for (;;) { int codeNum = GameCore.getPressedKeyCode();
Point position = GameCore.getSpritePosition(spriteGirl); if (codeNum == KeyEvent.VK_UP || codeNum == KeyEvent.VK_W) {
if (position.y > 30) {
System.out.println("up");
GameCore.setSpritePosition(spriteGirl, position.x, --position.y);
GameCore.pause(11);
}
} if (codeNum == KeyEvent.VK_DOWN || codeNum == KeyEvent.VK_S) {
if (position.y < 550) {
System.out.println("down");
GameCore.setSpritePosition(spriteGirl, position.x, ++position.y);
GameCore.pause(11);
}
}
if (codeNum == KeyEvent.VK_LEFT || codeNum == KeyEvent.VK_A) {
if (position.x > 0) {
System.out.println("left");
GameCore.setSpriteFlipX(spriteGirl, true);
GameCore.setSpritePosition(spriteGirl, --position.x, position.y);
GameCore.pause(2);
}
}
if (codeNum == KeyEvent.VK_RIGHT || codeNum == KeyEvent.VK_D) {
if (position.x < 730) {
System.out.println("right");
GameCore.setSpriteFlipX(spriteGirl, false);
GameCore.setSpritePosition(spriteGirl, ++position.x, position.y);
GameCore.pause(1);
}
}
} } }
画面效果如图：
压缩包及相关素材下载地址：
https://pan.baidu.com/s/1hrC3TtU