android游戏开发项目实战——数独
一、程序运行效果图
二、代码实现
1、main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />
</RelativeLayout>
2、dialog.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/usedTextId"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello_world"
/>
</LinearLayout>
3、keypad1.xml
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/keypad"
android:orientation="vertical"
>
<TableRow >
<Button android:id="@+id/keypad_1"
android:text="1"
/>
<Button android:id="@+id/keypad_2"
android:text="2"
/>
<Button android:id="@+id/keypad_3"
android:text="3"
/>
</TableRow>
<TableRow >
<Button android:id="@+id/keypad_4"
android:text="4"
/>
<Button android:id="@+id/keypad_5"
android:text="5"
/>
<Button android:id="@+id/keypad_6"
android:text="6"
/>
</TableRow>
<TableRow >
<Button android:id="@+id/keypad_7"
android:text="7"
/>
<Button android:id="@+id/keypad_8"
android:text="8"
/>
<Button android:id="@+id/keypad_9"
android:text="9"
/>
</TableRow>
</TableLayout>
4、MainActivity
package com.njupt.shudu;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(new ShuduView(this));
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
5、ShuduView
package com.njupt.shudu;
import android.app.AlertDialog;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
public class ShuduView extends View{
//单元格的宽度和高度
private float width;
private float height;
private Game game = new Game();
private int selectedX;
private int selectedY;
public ShuduView(Context context) {
super(context);
}
/**
* w:当前view的宽度
* h:当前view的高度
*
*/
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
//计算当前单元格的宽度和高度
this.width = w / 9f;
this.height = h / 9f;
super.onSizeChanged(w, h, oldw, oldh);
}
@Override
protected void onDraw(Canvas canvas) {
//生成用于绘制背景色的画笔
Paint backgroundPaint = new Paint();
//设置画笔的颜色
backgroundPaint.setColor(getResources().getColor(R.color.shudu_background));
//绘制背景色
canvas.drawRect(0, 0,getWidth(),getHeight(),backgroundPaint);
Paint darkPaint = new Paint();
darkPaint.setColor(getResources().getColor(R.color.shudu_dark));
Paint hilitePaint = new Paint();
hilitePaint.setColor(getResources().getColor(R.color.shudu_hilite));
Paint lightPaint = new Paint();
lightPaint.setColor(getResources().getColor(R.color.shudu_light));
/**
* 绘制用于分割小九宫格的线(即将屏幕分成81个格子)
*/
for(int i = 0 ; i < 9 ; ++i){
/**
* canvas.drawLine(0, i*height, getWidth(),i*height, lightPaint)
* 第1、2个参数: 起点的坐标
* 第3、4个参数: 终点的坐标
* 第5个参数: 所使用的画笔
*/
canvas.drawLine(0, i*height, getWidth(),i*height, lightPaint);//划横线
canvas.drawLine(0, i*height + 1, getWidth(), i*height + 1, hilitePaint);//也是划横线,为了对比突出那种"刻出来"的效果
canvas.drawLine(i*width, 0, i*width, getHeight(), lightPaint);
canvas.drawLine(i*width + 1, 0, i*width + 1, getHeight() , hilitePaint);
}
/**
* 绘制用于将屏幕分成9个大九宫格的线
*/
for(int i = 0 ; i < 9 ; ++i){
if(i % 3 == 0){
continue;
}
canvas.drawLine(0, i*height, getWidth(),i*height, darkPaint);//划横线
canvas.drawLine(0, i*height + 1, getWidth(), i*height + 1, hilitePaint);//也是划横线,为了对比突出那种"刻出来"的效果
canvas.drawLine(i*width, 0, i*width, getHeight(), darkPaint);
canvas.drawLine(i*width + 1, 0, i*width + 1, getHeight() , hilitePaint);
}
//绘制数字
Paint numberPaint = new Paint();
numberPaint.setColor(Color.BLACK);
numberPaint.setStyle(Paint.Style.STROKE);
numberPaint.setTextSize(height*0.75f);
numberPaint.setTextAlign(Paint.Align.CENTER);//设置对齐方式
FontMetrics fm = numberPaint.getFontMetrics();
float x = width / 2;
float y = height/2 - (fm.ascent + fm.descent)/2;
//生成数独的初始化数据
for(int i = 0 ; i < 9 ; ++i){
for(int j = 0 ; j < 9 ; ++j){
canvas.drawText(game.getTileString(i, j), i*width + x, j*height + y, numberPaint);
}
}
super.onDraw(canvas);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction() != MotionEvent.ACTION_DOWN){
return super.onTouchEvent(event);
}
//判断用户点击的是哪一个单元格
selectedX = (int)(event.getX() / width);
selectedY = (int)(event.getY() / height);
int used[] = game.getUsedTilesByCoor(selectedX, selectedY);
StringBuffer sb = new StringBuffer();
for(int i = 0 ; i < used.length ; ++i){//用来验证一下看对不对
sb.append(used[i]);
}
// //生成一个LayoutInflater对象
// LayoutInflater layoutInflater = LayoutInflater.from(this.getContext());
// //使用LayoutInflater对象根据一个布局文件,生成一个View
// View layoutView = layoutInflater.inflate(R.layout.dialog, null);
// //从生成好的TextView中,取出相应的控件
// TextView textView = (TextView)layoutView.findViewById(R.id.usedTextId);
// //设置TextView的内容
// textView.setText(sb.toString());
// //生成一个对话框的Builder对象
// AlertDialog.Builder builder = new AlertDialog.Builder(this.getContext());
// //设置对话框索要显示的内容
// builder.setView(layoutView);
// //生成对话框对象,并将其显示出来
// AlertDialog dialog = builder.create();
// dialog.show();
//
KeyDialog keyDialog = new KeyDialog(getContext(),used,this);
keyDialog.show();
return true;
}
public void setSelectedTile(int tile) {
if(game.setTileIfValid(selectedX,selectedY,tile)){
invalidate();
}
}
}
7、Game
package com.njupt.shudu;
public class Game {
//数独初始化数据的基础
private final String str = "360000000004230800000004200"
+"070460003820000014500013020"
+"001900000007048300000000045";
private int sudoku[] = new int[9*9];
//用于存储每个单元格已经不可用的数据
private int used[][][] = new int[9][9][];
public Game() {
sudoku = fromPuzzleString(str);
calculateAllUsedTiles();
}
/**
* 根据九宫格当中的坐标,返回该坐标所应该填写的数字
* @param x
* @param y
* @return
*/
private int getTile(int x, int y){
return sudoku[y*9 + x];
}
/**
* 根据x轴坐标和y轴坐标得到这一单元格不可用的数据
* @param x
* @param y
* @return
*/
public String getTileString(int x, int y){
int v = getTile(x,y);
if(v == 0){
return "";
}else{
return String.valueOf(v);
}
}
/**
* 根据一个字符串数据,生成一个整型数组,所谓数独游戏的初始化数据
* @param src
* @return
*/
protected int[] fromPuzzleString(String src){
int[] sudo = new int[src.length()];
for(int i = 0 ; i < sudo.length ; ++i){
sudo[i] = src.charAt(i) - '0';
}
return sudo;
}
/**
* 计算所有单元格对应的不可用的数据
*/
public void calculateAllUsedTiles(){
for(int x = 0 ; x < 9 ; ++x){
for(int y = 0 ; y < 9 ; ++y){
used[x][y] = calculateUsedTiles(x, y);
}
}
}
/**
* 取出某一单元格中已经不可用的数据
* @param x
* @param y
* @return
*/
public int[] getUsedTilesByCoor(int x, int y){
return used[x][y];
}
/**
* 计算某一单元格之中已经不可用的数据
* @param x
* @param y
*/
public int[] calculateUsedTiles(int x,int y) {
int c[] = new int[9];
/**
* 计算在y轴(列)方向上那些数字不可用...
*/
for(int i = 0 ; i < 9 ; ++i){
if(i == y){//如果这是用户点击的格子
continue;
}
int t = getTile(x,i);
if(t != 0){
c[t - 1] = t;
}
}
for(int i = 0 ; i < 9 ; ++i){
if(i == x){
continue;
}
int t = getTile(i,y);
if(t != 0){
c[t - 1] = t;
}
}
/**
* 计算在小的九宫格中有那些数字已经用过了..
*/
int startX = (x/3)*3;
int startY = (y/3)*3;
for(int i = startX ; i < startX + 3 ; ++i){
for(int j = startY ; j < startY + 3 ; ++j){
if(i == x && j == y){
continue;
}
int t = getTile(i, j);
if(t != 0 ){
c[t - 1] = t;
}
}
}
/**
* 把c中的0给去掉
*/
int nused = 0;
for(int t : c){
if(t != 0){
nused++;
}
}
int c1[] = new int[nused];
nused = 0;
for(int t : c){
if(t != 0){
c1[nused++] = t;
}
}
return c1;
}
public boolean setTileIfValid(int x, int y, int value) {
int tiles[] = getUesdTiles(x,y);
if(value != 0){
for(int tile : tiles){
if(tile == value){
return false;
}
}
}
setTile(x,y,value);//把用户输入的数字添加到九宫格中
calculateAllUsedTiles();//更新该单元格可以使用的数字
return true;
}
protected int[] getUesdTiles(int x, int y) {
return used[x][y];
}
private void setTile(int x, int y, int value){
sudoku[y*9 + x] = value;
}
}
8、KeyDialog
package com.njupt.shudu;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
/**
* 该类用于实现Dialog,实现自定义的对话框功能...
* @author Administrator
*
*/
public class KeyDialog extends Dialog{
//用来存放代表对话框当中按钮的对象
private final View keys[] = new View[9];
private final int used[];
private ShuduView shuduView;
/**
*
* 构造函数的第二个参数中保存着当前单元格已经使用过的数字
* @param context
* @param used
*/
public KeyDialog(Context context , int[] used , ShuduView shuduView) {
super(context);
this.used = used;
this.shuduView = shuduView;
}
/**
* 当一个Dialog第一次显示的时候,会调用其onCreate方法
*/
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//设置对话框的标题
setTitle("KeyDialog");
//用于为该Dialog设置布局文件
setContentView(R.layout.keypad1);
findViews();
//显示某一单元格中可用的数字
for(int i = 0 ; i < used.length ; ++i){
if(used[i] != 0){
keys[used[i] - 1].setVisibility(View.INVISIBLE);
}
}
//为对话框当中所有按钮设置监听器
setListeners();
}
private void findViews() {
keys[0] = findViewById(R.id.keypad_1);
keys[1] = findViewById(R.id.keypad_2);
keys[2] = findViewById(R.id.keypad_3);
keys[3] = findViewById(R.id.keypad_4);
keys[4] = findViewById(R.id.keypad_5);
keys[5] = findViewById(R.id.keypad_6);
keys[6] = findViewById(R.id.keypad_7);
keys[7] = findViewById(R.id.keypad_8);
keys[8] = findViewById(R.id.keypad_9);
}
/**
* 通知ShuduView对象,刷新挣个九宫格显示的数据
* @param tile
*/
private void returnResult(int tile){
System.out.println("shuduView: " + shuduView);
shuduView.setSelectedTile(tile);
dismiss();//取消对话框的显示
}
private void setListeners(){
for(int i = 0 ; i < keys.length ; ++i){
final int t = i + 1;
keys[i].setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
returnResult(t);
}
});
}
}
}
本项目源码下载：http://download.csdn.net/detail/caihongshijie6/6883785