Android编写2048小游戏

概述先来说说2048游戏规则：开始时棋盘内随机出现两个数字，出现的数字仅可能为2或4

先来说说2048游戏规则：

开始时棋盘内随机出现两个数字，出现的数字仅可能为2或4

玩家可以选择上下左右四个方向，若棋盘内的数字出现位移或合并，视为有效移动

玩家选择的方向上若有相同的数字则合并，每次有效移动可以同时合并，但不可以连续合并

合并所得的所有新生成数字想加即为该步的有效得分

玩家选择的方向行或列前方有空格则出现位移

每有效移动一步，棋盘的空位(无数字处)随机出现一个数字(依然可能为2或4)

棋盘被数字填满，无法进行有效移动，判负，游戏结束

棋盘上出现2048，判胜，游戏结束

下面代码

MainActivity类

public class MainActivity extends AppCompatActivity { @OverrIDe protected voID onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentVIEw(new GameVIEw(this)); }}

定义一个卡片类显示数据

/卡片类型public class Card extends FrameLayout { //2 TextVIEw tv; private int number = 0; int wIDth; public Card(Context context,int wIDth) { super(context); this.wIDth = wIDth; init(); } private voID init() { tv = new TextVIEw(getContext()); setpadding(5,5,5); FrameLayout.LayoutParams lp = new LayoutParams(wIDth - 10,wIDth - 10); tv.setLayoutParams(lp); tv.setGravity(Gravity.CENTER); tv.setTextcolor(color.WHITE); tv.setTextSize(48); this.addVIEw(tv); setcolor(); } public voID setNumber(int number) { this.number = number; if (number == 0)  tv.setText(""); else  tv.setText(number + ""); setcolor(); } @OverrIDe public String toString() { return "Card{" +  "tv=" + tv +  ",number=" + number +  ",wIDth=" + wIDth +  '}'; } private voID setcolor() { switch (number) {  case 0:  tv.setBackgroundcolor(getResources().getcolor(R.color.c0));  break;  case 2:  tv.setBackgroundcolor(getResources().getcolor(R.color.c2));  break;  case 4:  tv.setBackgroundcolor(getResources().getcolor(R.color.c4));  break;  case 8:  tv.setBackgroundcolor(getResources().getcolor(R.color.c8));  break;  case 16:  tv.setBackgroundcolor(getResources().getcolor(R.color.c16));  break;  case 32:  tv.setBackgroundcolor(getResources().getcolor(R.color.c32));  break;  case 64:  tv.setBackgroundcolor(getResources().getcolor(R.color.c64));  break;  case 128:  tv.setBackgroundcolor(getResources().getcolor(R.color.c128));  break;  case 256:  tv.setBackgroundcolor(getResources().getcolor(R.color.c256));  break;  case 512:  tv.setBackgroundcolor(getResources().getcolor(R.color.c512));  break;  case 1024:  tv.setBackgroundcolor(getResources().getcolor(R.color.c1024));  break;  case 2048:  tv.setBackgroundcolor(getResources().getcolor(R.color.c2048));  break; } } public int getNumber() { return number; }}

自己定义一下上面的几种颜色 在values下的colors中

<?xml version="1.0" enCoding="utf-8"?><resources> <color name="colorPrimary">#3F51B5</color> <color name="colorPrimaryDark">#303F9F</color> <color name="colorAccent">#FF4081</color> <color name="c0">#43382a</color> <color name="c2">#2a8618</color> <color name="c4">#3d6319</color> <color name="c8">#F2B179</color> <color name="c16">#F59563</color> <color name="c32">#F57C5F</color> <color name="c64">#5b69b7</color> <color name="c128">#b37d3e</color> <color name="c256">#3a9096</color> <color name="c512">#d7882c</color> <color name="c1024">#5c1b78</color> <color name="c2048">#640548</color></resources>

布局类 和里面的运算方法

public class GameVIEw extends GrIDLayout { int[][] values = new int[4][4]; Card[][] cards = new Card[4][4];// Integer -128-127 == 大于这个数 两个对象 public GameVIEw(Context context) { super(context); init(); } public GameVIEw(Context context,AttributeSet attrs) { super(context,attrs); init(); } private voID init() { setColumnCount(4); } @OverrIDe protected voID onSizeChanged(int w,int h,int olDW,int oldh) { super.onSizeChanged(w,h,olDW,oldh); newGame(); } private voID newGame() { //VIEwGroup.LayoutParams lp = new VIEwGroup.LayoutParams((int) (getResources().getdisplayMetrics().wIDthPixels / 4),(int) (getResources().getdisplayMetrics().wIDthPixels / 4)); GrIDLayout.LayoutParams params = new GrIDLayout.LayoutParams();// params.wIDth = getResources().getdisplayMetrics().wIDthPixels / 4;// params.height = getResources().getdisplayMetrics().wIDthPixels / 4; //Log.e("TAG",params.wIDth + " " + params.height); this.removeAllVIEws(); // GrIDLayout.LayoutParams lpa = new GrIDLayout.LayoutParams(lp); for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  values[i][j] = 0;  cards[i][j] = new Card(getContext(),getResources().getdisplayMetrics().wIDthPixels / 4);  // cards[i][j].setLayoutParams(params);  //cards[i][j].upLv();  this.addVIEw(cards[i][j]);  } } //创建初始的两张卡 int i = (int) (Math.random() * 16); int j = 0; do {  j = (int) (Math.random() * 16);//0-15 15 3 3 } while (j == i); Log.e("TAG",i + " " + j); values[i / 4][i % 4] = Math.random() * 20 < 1 ? 4 : 2; values[j / 4][j % 4] = Math.random() * 20 < 1 ? 4 : 2; setValues(); } float oldx,oldy; int move = -1; @OverrIDe public boolean ontouchEvent(MotionEvent event) { float x = event.getX(); float y = event.getY(); switch (event.getAction()) {  case MotionEvent.ACTION_DOWN:  move = -1;  oldx = x;  oldy = y;  break;  case MotionEvent.ACTION_MOVE:  if (Math.abs(oldx - x) > Math.abs(oldy - y)) {   if (oldx - x > 15) { //左   Log.e("TAG","---------->>>");   move = 1;   } else if (oldx - x < -15) {//右   Log.e("TAG","---------->>>");   move = 2;   }  } else {   if (oldy - y > 15) {   move = 3;   } else if (oldy - y < -15) {   move = 4;   }  }  break;  case MotionEvent.ACTION_UP:  //记录之前的数组  int[][] temp = new int[4][4];  for (int i = 0; i < 4; i++) {   for (int j = 0; j < 4; j++) {   temp[i][j] = values[i][j];   }  }  switch (move) {   case 1:   left();   break;   case 2:   right();   break;   case 3:   up();   break;   case 4:   down();   break;  }  setValues();  if (move != -1) {   //比对当前的数组   for (int i = 0; i < 4; i++) {   for (int j = 0; j < 4; j++) {    if (values[i][j] != temp[i][j]) {    addCard();    return true;    }   }   }  }  //判断游戏胜利还是结束4  if (isWin()) {   Toast.makeText(getContext(),"游戏胜利",Toast.LENGTH_SHORT).show();  }  if (isOver()) {   this.removeAllVIEws();   TextVIEw tv = new TextVIEw(getContext());   tv.setText("游戏结束,点击从新开始");   this.addVIEw(tv);   tv.setonClickListener(new OnClickListener() {   @OverrIDe   public voID onClick(VIEw v) {    newGame();   }   });  }  break; } return true; } private voID addCard() { while (true) {  int j = (int) (Math.random() * 16);  if (values[j / 4][j % 4] == 0) {  values[j / 4][j % 4] = 2;  cards[j / 4][j % 4].setNumber(2);  return;  } } } public voID left() { //取出 4个 集合 for (int i = 0; i < 4; i++) {  List<Integer> List = new ArrayList<>();  for (int j = 0; j < 4; j++) {  int value = values[i][j];  if (value != 0)   List.add(value);  }  //比较  Log.e("TAG",List.toString());  if (List.size() == 0)  continue;  else if (List.size() == 1) {  values[i][0] = List.get(0);  for (int j = 0; j < 3; j++) {   values[i][j + 1] = 0;  }  } else if (List.size() == 2) {  if (List.get(0).equals(List.get(1))) {   values[i][0] = List.get(0) * 2;   //三个值补0   for (int j = 0; j < 3; j++) {   values[i][j + 1] = 0;   }  } else {   values[i][0] = List.get(0);   values[i][1] = List.get(1);   values[i][2] = 0;   values[i][3] = 0;  }  } else if (List.size() == 3) {  if (List.get(0).equals(List.get(1))) {   values[i][0] = List.get(0) * 2;   values[i][1] = List.get(2);   values[i][2] = 0;   values[i][3] = 0;  } else if (List.get(1).equals(List.get(2))) {   values[i][0] = List.get(0);   values[i][1] = List.get(2) * 2;   values[i][2] = 0;   values[i][3] = 0;  } else {   values[i][0] = List.get(0);   values[i][1] = List.get(1);   values[i][2] = List.get(2);   values[i][3] = 0;  }  } else {  if (List.get(0).equals(List.get(1))) {   if (List.get(3).equals(List.get(2))) {   values[i][0] = List.get(0) * 2;   values[i][1] = List.get(2) * 2;   values[i][2] = 0;   values[i][3] = 0;   } else {   values[i][0] = List.get(0) * 2;   values[i][1] = List.get(2);   values[i][2] = List.get(3);   values[i][3] = 0;   }  } else {   //1和2不相等   //先比对2 3 相等，不等   if (List.get(1).equals(List.get(2))) {   values[i][0] = List.get(0);   values[i][1] = List.get(1) * 2;   values[i][2] = List.get(3);   values[i][3] = 0;   } else {   if (List.get(2).equals(List.get(3))) {    values[i][0] = List.get(0);    values[i][1] = List.get(1);    values[i][2] = List.get(2) * 2;    values[i][3] = 0;   }   }  }  } } } private voID delete() { // Log.e("TAG","--------------------执行");// //遍历// for (int i = 0; i < 4; i++) {//  for (int j = 0; j < 3; j++) {//  Card card = cards[i][j];//  Log.e("TAG","i:" + i + " j:" + j + " num:" + card.getNumber());//  if (card.getNumber() == 0) {//   boolean isSub = false;//   for (int k = j; k < 3; k++) {//   cards[i][k].setNumber(cards[i][k + 1].getNumber());//   if (cards[i][k + 1].getNumber() != 0) {//    isSub = true;//   }//   }//   if (isSub)//   j--;//   cards[i][3].setNumber(0);//  } else if (card.getNumber() == cards[i][j + 1].getNumber()) {//   card.upLv();//   cards[i][j + 1].setNumber(0);//   //后面的往前搬//   for (int k = j + 1; k < 3; k++) {//   cards[i][k].setNumber(cards[i][k + 1].getNumber());//   }//   cards[i][3].setNumber(0);//   j--;//  }//  }// }// for (int j = 0; j < 4; j++) { //列//  for (int i = 3; i >= 1; i--) {//  Card card = cards[j][i];//  if (card.getNumber() == 0) {//   //全行左移//   //要将//   //如果是最后一个，不需要理会//   continue;//  } else {//   //判断左边一个//   if (cards[j][i - 1].getNumber() == 0) {//   //从i --》i-1//   for (int k = i - 1; k < 3; k++) {//    cards[j][k].setNumber(cards[j][k + 1].getNumber());//   }//   cards[j][3].setNumber(0);////   } else if (cards[j][i - 1].getNumber() == card.getNumber()) {//   cards[j][i - 1].upLv();//   card.setNumber(0);//   for (int k = i; k < 3; k++) {//    cards[j][k].setNumber(cards[j][k + 1].getNumber());//   }//   cards[j][3].setNumber(0);//   }//  }//  }// } } public voID right() { mirrorH(); left(); mirrorH(); } private voID mirrorH() { for (int i = 0; i < 4; i++) {  int temp = values[i][0];  values[i][0] = values[i][3];  values[i][3] = temp;  temp = values[i][1];  values[i][1] = values[i][2];  values[i][2] = temp; } } public voID down() { //左旋 int[][] temp = new int[4][4]; for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  temp[i][j] = values[3 - j][i];  } } values = temp; left(); temp = new int[4][4]; for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  temp[i][j] = values[j][3 - i];  } } values = temp; } public voID up() { mirrorV(); down(); mirrorV(); } private voID mirrorV() { for (int j = 0; j < 4; j++) {  int temp = values[0][j];  values[0][j] = values[3][j];  values[3][j] = temp;  temp = values[1][j];  values[1][j] = values[2][j];  values[2][j] = temp; } } public voID setValues() { for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  System.out.print(values[i][j] + " ");  cards[i][j].setNumber(values[i][j]);  }  System.out.println(); } } public boolean isWin() { for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  if (values[i][j] == 2048)   return true;  } } return false; } public boolean isOver() { for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  if (values[i][j] == 0)   return false;  } } //满了 for (int i = 0; i < 4; i++) {  for (int j = 0; j < 4; j++) {  int value = values[i][j];  if (i > 1 && value == values[i - 1][j])   return false;  else if (i < 3 && value == values[i + 1][j])   return false;  else if (j > 1 && value == values[i][j - 1])   return false;  else if (j < 3 && value == values[i][j + 1])   return false;  } } return true; }}

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