个人android 2048的玩耍

个人android 2048的玩耍

个人信息：就读于燕大本科软件工程专业 目前大四;

本人博客：google搜索“cqs_2012”即可;

个人爱好：酷爱数据结构和算法，希望将来从事算法工作为人民作出自己的贡献;

编程语言：java ;

编程坏境：Windows 7 专业版 x64;

编程工具：jdk，eclipse;

制图工具：office 2010 powerpoint;

硬件信息：7G-3 笔记本;

这篇文章意义：

这篇文章是主要记录和讲解开发android 2048游戏的一个过程。

我们首先讲解2048核心算法两个操作：

1）移动：将数据单元格跳过所有的空格，在指定方向后，靠向方向边

2）合并：将数据单元格与其相邻的单元格（其与其单元格数据相等的情况下）进行合并

3）判断是否随机生成：滑动后，发现其数据表格当前状态和其原先状态是否一致

4）判断结束条件：所有单元格都已经填满，而且任何相邻的两个单元格不能合并

主要代码

package com.example.wxj2048;import android.content.Context;import android.graphics.Color;import android.view.Gravity;import android.widget.FrameLayout;import android.widget.TextView;public class Card extends FrameLayout {public Card(Context context) {super(context);// TODO Auto-generated constructor stublabel = new TextView(getContext());label.setTextSize(25);label.setGravity(Gravity.CENTER);LayoutParams lParams = new LayoutParams(-1, -1);addView(label, lParams);lParams.setMargins(10, 10, 0, 0);setNum(0);}public TextView label;public Integer num;public Integer getNum() {return num;}public void setNum(Integer num) {this.num = num;label.setBackgroundColor(Color.DKGRAY);if (num <= 0) {label.setText(" ");} else {label.setText(num.toString());switch (num) {case 0:label.setBackgroundColor(Color.DKGRAY);break;case 2:label.setBackgroundColor(Color.GRAY);break;case 4:label.setBackgroundColor(Color.GREEN);break;case 8:label.setBackgroundColor(Color.LTGRAY);break;case 16:label.setBackgroundColor(Color.MAGENTA);break;case 32:label.setBackgroundColor(Color.RED);break;case 64:label.setBackgroundColor(Color.WHITE);break;case 128:label.setBackgroundColor(Color.YELLOW);break;case 256:label.setBackgroundColor(Color.BLUE);break;case 512:label.setBackgroundColor(0x55ffddaa);break;case 1024:label.setBackgroundColor(0x55ffaadd);break;case 2048:label.setBackgroundColor(0x55aaffaa);break;default:label.setBackgroundColor(0x55aaffaa);break;}}}public boolean equals(Card o) {return this.num.intValue() == o.getNum().intValue();}public boolean isEmpty(){if(this.num.intValue() <= 0)return true;else return false;}}

package com.example.wxj2048;import android.content.ContentValues;import android.content.Context;import android.database.Cursor;import android.database.sqlite.SQLiteDatabase;import android.database.sqlite.SQLiteOpenHelper;public class Dbdao extends SQLiteOpenHelper{private static final String DBNAME = "mldn.db";private static final int DBVERSION = 1;private static final String TABNAME = "game2048";public Dbdao(Context context){super(context, DBNAME, null, DBVERSION);}@Overridepublic void onCreate(SQLiteDatabase db) {// TODO Auto-generated method stubString sql =" CREATE TABLE "+ TABNAME+" (" +" id INTEGER ," +" score INTEGER "+") ";db.execSQL(sql);}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {// TODO Auto-generated method stubString sql = " DROP TABLE IF EXISTS " + TABNAME;db.execSQL(sql);this.onCreate(db);}public void insert(Integer score){SQLiteDatabase db = getWritableDatabase();ContentValues values = new ContentValues();values.put("id", 1);values.put("score", score);db.insert(TABNAME, null, values);db.close();}public void delete(){SQLiteDatabase db = getWritableDatabase();String[] data = new String[1]; data[0] = "1";db.delete(TABNAME,"id = ?",data);db.close();}public Integer query(){SQLiteDatabase db = getWritableDatabase();Cursor c = db.query(TABNAME, null, null, null, null, null, null); c.moveToFirst();int index = c.getColumnIndex("score");String result = c.getString(index);db.close();return Integer.valueOf(result);}}

package com.example.wxj2048;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.animation.AlphaAnimation;import android.view.animation.Animation;import android.view.animation.Animation.AnimationListener;import android.widget.ImageView;public class FlashStartActivity extends Activity {    private ImageView welcomeImg = null;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.flash_start);                     welcomeImg = (ImageView) this.findViewById(R.id.welcome_img);        AlphaAnimation anima = new AlphaAnimation(0.3f, 1.0f);        anima.setDuration(5000);        welcomeImg.startAnimation(anima);        anima.setAnimationListener(new AnimationImpl());    }    private class AnimationImpl implements AnimationListener {        @Override        public void onAnimationStart(Animation animation) {            welcomeImg.setBackgroundResource(R.drawable.welcome);        }        @Override        public void onAnimationEnd(Animation animation) {            skip(); // 动画结束后跳转到别的页面        }        @Override        public void onAnimationRepeat(Animation animation) {        }    }    private void skip() {    Intent intent = new Intent(FlashStartActivity.this,MainActivity.class);    startActivity(intent);    finish();    }}

package com.example.wxj2048;import java.util.ArrayList;import android.app.AlertDialog;import android.content.Context;import android.content.DialogInterface;import android.graphics.Point;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;import android.widget.GridLayout;public class GameView extends GridLayout {public GameView(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);// TODO Auto-generated constructor stubinitGameView();}public GameView(Context context) {super(context);// TODO Auto-generated constructor stubinitGameView();}public GameView(Context context, AttributeSet attrs) {super(context, attrs);// TODO Auto-generated constructor stubinitGameView();}private void initGameView() {setColumnCount(4);setBackgroundColor(0xffbbadcc);setOnTouchListener(new OnTouchListener() {double sx, sy, ex, ey;@Overridepublic boolean onTouch(View arg0, MotionEvent arg1) {// TODO Auto-generated method stubswitch (arg1.getAction()) {case MotionEvent.ACTION_DOWN:sx = arg1.getX();sy = arg1.getY();break;case MotionEvent.ACTION_UP:ex = arg1.getX();ey = arg1.getY();if (Math.abs(sx - ex) > Math.abs(sy - ey)) {if (sx > ex && isLeftSlide()) {leftSlide();leftMerge();leftSlide();addRandomNum();} else if (sx < ex && isRightSlide()) {rightSlide();rightMerge();rightSlide();addRandomNum();}} else if (Math.abs(sx - ex) < Math.abs(sy - ey)) {if (sy > ey && isUpSlide()) {upSlide();upMerge();upSlide();addRandomNum();} else if (sy < ey && isDownSlide()) {downSlide();downMerge();downSlide();addRandomNum();}}freshScore();isEndGame();break;default:break;}return true;}});}@Overridepublic void onSizeChanged(int w, int h, int oldw, int oldh) {super.onSizeChanged(w, h, oldw, oldh);Integer width = (w - 10) / 4;Integer height = (h - 10) / 4;this.addCard(width, height);this.startGame();}public void addCard(Integer w, Integer h) {Card card;for (Integer integer = 0; integer < 4; integer++) {for (Integer jInteger = 0; jInteger < 4; jInteger++) {card = new Card(getContext());card.setNum(2);addView(card, w, h);cardarr[integer][jInteger] = card;}}}private Card[][] cardarr = new Card[4][4];private ArrayList<Point> emptyarrlist = new ArrayList<Point>();public void addRandomNum() {emptyarrlist.clear();for (Integer integer = 0; integer < 4; integer++)for (Integer jInteger = 0; jInteger < 4; jInteger++) {if (cardarr[integer][jInteger].getNum() <= 0) {emptyarrlist.add(new Point(integer, jInteger));}}if (!emptyarrlist.isEmpty()) {Point point = emptyarrlist.remove((int) (Math.random() * emptyarrlist.size()));cardarr[point.x][point.y].setNum(Math.random() > 0.1 ? 2 : 4);}}public void startGame() {MainActivity.scoreString.setText("score: ");MainActivity.nowScore.setText("0 ");for (Integer integer = 0; integer < 4; integer++)for (Integer jInteger = 0; jInteger < 4; jInteger++)cardarr[integer][jInteger].setNum(0);addRandomNum();addRandomNum();}public void leftSlide() {ArrayList<Integer> arrayList = new ArrayList<Integer>();for (Integer integer = 0; integer < 4; integer++) {arrayList.clear();for (Integer j = 0; j < 4; j++) {arrayList.add(cardarr[integer][j].getNum());cardarr[integer][j].setNum(0);}arrayList = this.arraySlide(arrayList);for (Integer j = 0; j < arrayList.size(); j++) {cardarr[integer][j].setNum(arrayList.get(j));}}}public boolean isLeftSlide() {boolean result = false;ALL: for (int i = 0; i < 4; i++) {for (int j = 1; j < 4; j++) {if (!cardarr[i][j].isEmpty()) {if (cardarr[i][j - 1].isEmpty()) {result = true;break ALL;}if (cardarr[i][j].equals(cardarr[i][j - 1])) {result = true;break ALL;}}}}return result;}public boolean isRightSlide() {boolean result = false;ALL: for (int i = 0; i < 4; i++) {for (int j = 0; j < 3; j++) {if (!cardarr[i][j].isEmpty()) {if (cardarr[i][j + 1].isEmpty()) {result = true;break ALL;}if (cardarr[i][j].equals(cardarr[i][j + 1])) {result = true;break ALL;}}}}return result;}public boolean isUpSlide() {boolean result = false;ALL: for (int j = 0; j < 4; j++) {for (int i = 1; i < 4; i++) {if (!cardarr[i][j].isEmpty()) {if (cardarr[i - 1][j].isEmpty()) {result = true;break ALL;}if (cardarr[i][j].equals(cardarr[i - 1][j])) {result = true;break ALL;}}}}return result;}public boolean isDownSlide() {boolean result = false;ALL: for (int j = 0; j < 4; j++) {for (int i = 0; i < 3; i++) {if (!cardarr[i][j].isEmpty()) {if (cardarr[i + 1][j].isEmpty()) {result = true;break ALL;}if (cardarr[i][j].equals(cardarr[i + 1][j])) {result = true;break ALL;}}}}return result;}public void leftMerge() {for (Integer i = 0; i < 4; i++) {for (Integer j = 0; j < 3; j++) {if (cardarr[i][j].equals(cardarr[i][j + 1])) {cardarr[i][j].setNum(cardarr[i][j].getNum() * 2);cardarr[i][j + 1].setNum(0);}}}}public void rightMerge() {for (Integer i = 0; i < 4; i++) {for (Integer j = 3; j > 0; j--) {if (cardarr[i][j].equals(cardarr[i][j - 1])) {cardarr[i][j].setNum(cardarr[i][j].getNum() * 2);cardarr[i][j - 1].setNum(0);}}}}public void upMerge() {for (Integer j = 0; j < 4; j++) {for (Integer i = 0; i < 3; i++) {if (cardarr[i][j].equals(cardarr[i + 1][j])) {cardarr[i][j].setNum(cardarr[i][j].getNum() * 2);cardarr[i + 1][j].setNum(0);}}}}public void downMerge() {for (Integer j = 0; j < 4; j++) {for (Integer i = 3; i > 0; i--) {if (cardarr[i][j].equals(cardarr[i - 1][j])) {cardarr[i][j].setNum(cardarr[i][j].getNum() * 2);cardarr[i - 1][j].setNum(0);}}}}public ArrayList<Integer> arraySlide(ArrayList<Integer> arr) {ArrayList<Integer> result = new ArrayList<Integer>();for (Integer integer = 0; integer < arr.size(); integer++) {if (arr.get(integer) > 0)result.add(arr.get(integer));}return result;}public void rightSlide() {ArrayList<Integer> arrayList = new ArrayList<Integer>();for (Integer integer = 0; integer < 4; integer++) {arrayList.clear();for (Integer j = 3; j >= 0; j--) {arrayList.add(cardarr[integer][j].getNum());cardarr[integer][j].setNum(0);}arrayList = this.arraySlide(arrayList);for (Integer j = 0; j < arrayList.size(); j++) {cardarr[integer][3 - j].setNum(arrayList.get(j));}}}public void upSlide() {ArrayList<Integer> arrayList = new ArrayList<Integer>();for (Integer j = 0; j < 4; j++) {arrayList.clear();for (Integer i = 0; i < 4; i++) {arrayList.add(cardarr[i][j].getNum());cardarr[i][j].setNum(0);}arrayList = arraySlide(arrayList);for (Integer i = 0; i < arrayList.size(); i++) {cardarr[i][j].setNum(arrayList.get(i));}}}public void downSlide() {ArrayList<Integer> arrayList = new ArrayList<Integer>();for (Integer j = 0; j < 4; j++) {arrayList.clear();for (Integer i = 3; i >= 0; i--) {arrayList.add(cardarr[i][j].getNum());cardarr[i][j].setNum(0);}arrayList = arraySlide(arrayList);for (Integer i = 0; i < arrayList.size(); i++) {cardarr[3 - i][j].setNum(arrayList.get(i));}}}public void freshScore() {Integer max = 0;for (Integer i = 0; i < 4; i++) {for (Integer j = 0; j < 4; j++) {if (cardarr[i][j].getNum() > max)max = cardarr[i][j].getNum();}}MainActivity.nowScore.setText(max.toString()+" ");}public void isEndGame() {boolean end = true;ALL: for (int i = 0; i < 4; i++) {for (int j = 0; j < 4; j++) {if (cardarr[i][j].getNum().intValue() <= 0) {end = false;break ALL;}}}if (end) {NextAll: for (int i = 1; i < 3; i++) {for (int j = 1; j < 3; j++) {if (cardarr[i][j].getNum().intValue() == cardarr[i][j + 1].getNum().intValue()) {end = false;break NextAll;} else if (cardarr[i][j].getNum().intValue() == cardarr[i][j - 1].getNum().intValue()) {end = false;break NextAll;} else if (cardarr[i][j].getNum().intValue() == cardarr[i + 1][j].getNum().intValue()) {end = false;break NextAll;} else if (cardarr[i][j].getNum().intValue() == cardarr[i - 1][j].getNum().intValue()) {end = false;break NextAll;}}}for (int i = 0; i < 3; i++) {if (cardarr[0][i].getNum().intValue() == cardarr[0][i + 1].getNum().intValue()) {end = false;break;}if (cardarr[3][i].getNum().intValue() == cardarr[3][i + 1].getNum().intValue()) {end = false;break;}if (cardarr[i][0].getNum().intValue() == cardarr[i + 1][0].getNum().intValue()) {end = false;break;}if (cardarr[i][3].getNum().intValue() == cardarr[i + 1][3].getNum().intValue()) {end = false;break;}}}if (end) {freshMaxScore();new AlertDialog.Builder(getContext()).setTitle("你好").setMessage("恭喜你获得高分： " + MainActivity.nowScore.getText().toString().trim()).setPositiveButton("突破一下",new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface arg0,int arg1) {// TODO Auto-generated method stubstartGame();}}).show();}}public void freshMaxScore(){String nowScoreString = MainActivity.nowScore.getText().toString().trim();int nowScore = Integer.valueOf(nowScoreString).intValue();String maxScoreString = MainActivity.maxScore.getText().toString().trim();int maxScore = Integer.valueOf(maxScoreString);if(nowScore > maxScore){GameApplication.dbdao.delete();GameApplication.dbdao.insert(nowScore);MainActivity.maxScore.setText(nowScore+" ");}}}

<pre name="code" class="java">package com.example.wxj2048;import android.app.Application;public class GameApplication extends Application{public static Dbdao dbdao;}

package com.example.wxj2048;import android.os.Bundle;import android.app.Activity;import android.graphics.Color;import android.view.Menu;import android.widget.TextView;public class MainActivity extends Activity {public static TextView scoreString;public static TextView nowScore;public static TextView maxString;public static TextView maxScore;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);scoreString = (TextView) findViewById(R.id.scoreString);scoreString.setTextColor(Color.BLACK);scoreString.setTextSize(21);nowScore = (TextView) findViewById(R.id.nowScore);nowScore.setTextColor(Color.BLUE);nowScore.setTextSize(21);maxString = (TextView) findViewById(R.id.maxString);maxString.setTextColor(Color.BLACK);maxString.setTextSize(21);maxScore = (TextView) findViewById(R.id.maxScore);maxScore.setTextColor(Color.RED);maxScore.setTextSize(21);loadScore();}@Overridepublic 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;}public void loadScore(){Dbdao helper = new Dbdao(this);GameApplication.dbdao = helper;helper.insert(0);Integer score = helper.query();maxString.setText("max score : ");maxScore.setText(score.toString());}}

主要一些

<LinearLayout 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"android:orientation="vertical"    tools:context=".MainActivity" ><LinearLayout     android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:orientation="horizontal">    <TextView         android:id = "@+id/scoreString"        android:layout_width="wrap_content"        android:layout_height="wrap_content"/>    <TextView         android:id="@+id/nowScore"        android:layout_width="wrap_content"        android:layout_height="wrap_content"/>    <TextView         android:id = "@+id/maxString"        android:layout_width="wrap_content"        android:layout_height="wrap_content"/>    <TextView         android:id="@+id/maxScore"        android:layout_width="wrap_content"        android:layout_height="wrap_content"/></LinearLayout><com.example.wxj2048.GameView    android:layout_width="fill_parent"    android:layout_height="0dp"    android:layout_weight="1"    android:id="@+id/gameView"    > </com.example.wxj2048.GameView></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><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"    tools:context=".FlashStartActivity" > <ImageView      android:id="@+id/welcome_img"     android:layout_width="match_parent"     android:layout_height="match_parent"     /></RelativeLayout>