android-2048游戏

Card.java

package com.example.xmskf.leran2048;
import android.content.Context;
import android.view.Gravity;
import android.widget.FrameLayout;
import android.widget.TextView;
/**
 * Created by xmskf on 2015/10/17.
 */
public class Card extends FrameLayout {
    public Card(Context context) {
        super(context);
        label = new TextView(getContext());
        label.setTextSize(32);
        label.setBackgroundColor(0x33ffffff);
        label.setGravity(Gravity.CENTER);
        LayoutParams lp = new LayoutParams(-1, -1);
        lp.setMargins(10, 10, 0, 0);
        addView(label, lp);
        setNum(0);
    }
    private int num = 0;
    public int getNum() {
        return num;
    }
    public void setNum(int num) {
        this.num = num;
        if (num<=0) {
            label.setText("");
        }else{
            label.setText(num+"");
        }
    }
    public boolean equals(Card o) {
        return getNum()==o.getNum();
    }
    private TextView label;
}
gameView.java
package com.example.xmskf.leran2048;
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;
import java.util.ArrayList;
import java.util.List;
/**
 * Created by xmskf on 2015/10/17.
 */
public class gameView extends GridLayout {
    public gameView(Context context) {
        super(context);
        initganmeView();
    }
    public gameView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initganmeView();
    }
    public gameView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initganmeView();
    }
    /**
     * 判断手指往哪里移动，屏幕触控事件
     */
    private void initganmeView() {
        //指明4列
        setColumnCount(4);
        setBackgroundColor(0xffbbada0);
        setOnTouchListener(new View.OnTouchListener() {
            /**
             * startx X坐标
             * startY Y坐标
             * offsetX X间距
             * offsetY Y间距
             */
            private float startX, startY, offsetX, offsetY;
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
                        startX = event.getX();
                        startY = event.getY();
                        break;
                    case MotionEvent.ACTION_UP:
                        offsetX = event.getX() - startX;
                        offsetY = event.getY() - startY;
                        //判断是否水平方向
                        if (Math.abs(offsetX) > Math.abs(offsetY)) {
                            if (offsetX < -5) {
                                System.out.println("left");
                                swipeLeft();
                            } else if (offsetX > 5) {
                                System.out.println("right");
                                swipeRight();
                            }
                        } else {
                            if (offsetY < -5) {
                                System.out.println("up");
                                swipeUp();
                            } else if (offsetY > 5) {
                                System.out.println("down");
                                swipeDown();
                            }
                        }
                        break;
                }
                return true;
            }
        });
    }
    @Override
    protected void onSizeChanged(int w, int h, int oldw, int oldh) {
        super.onSizeChanged(w, h, oldw, oldh);
        int cardWidth = (Math.min(w, h) - 10) / 4;
        addCard(cardWidth, cardWidth);
        startGame();
    }
    /**
     * 添加卡片
     */
    private void addCard(int cardWidth, int cardHeight) {
        Card c;
        for (int y = 0; y < 4; y++) {
            for (int x = 0; x < 4; x++) {
                c = new Card(getContext());
                c.setNum(0);
                addView(c, cardWidth, cardHeight);
                cardsMap[x][y] = c;
            }
        }
    }
    public void startGame() {
        MainActivity.getMainActivity().CleraSocore();
        for (int y = 0; y < 4; y++) {
            for (int x = 0; x < 4; x++) {
                cardsMap[x][y].setNum(0);
            }
        }
        addRandomNum();
        addRandomNum();
    }
    private void addRandomNum() {
        emptyPoints.clear();
        for (int y = 0; y < 4; y++) {
            for (int x = 0; x < 4; x++) {
                if (cardsMap[x][y].getNum() <= 0) {
                    emptyPoints.add(new Point(x, y));
                }
            }
        }
        Point p = emptyPoints.remove((int) (Math.random() * emptyPoints.size()));
        cardsMap[p.x][p.y].setNum(Math.random() > 0.1 ? 2 : 4);
    }
    private void swipeLeft() {
        boolean merge=false;
        for (int y = 0; y < 4; y++) {
            for (int x = 0; x < 4; x++) {
                for (int x1 = x + 1; x1 < 4; x1++) {
                    if (cardsMap[x1][y].getNum() > 0) {
                        if (cardsMap[x][y].getNum() <= 0) {
                            cardsMap[x][y].setNum(cardsMap[x1][y].getNum());
                            cardsMap[x1][y].setNum(0);
                            x--;
                            merge=true;
                        } else if (cardsMap[x][y].equals(cardsMap[x1][y])) {
                            cardsMap[x][y].setNum(cardsMap[x][y].getNum() * 2);
                            cardsMap[x1][y].setNum(0);
                            MainActivity.getMainActivity().addScore(cardsMap[x][y].getNum());
                            merge=true;
                        }
                        break;
                    }
                }
            }
        }
        if (merge){
            addRandomNum();
            checkComplete();
        }
    }
    private void swipeRight() {
        boolean merge=false;
        for (int y = 0; y < 4; y++) {
            for (int x = 3; x > 0; x--) {
                for (int x1 = x - 1; x1 >= 0; x1--) {
                    if (cardsMap[x1][y].getNum() > 0) {
                        if (cardsMap[x][y].getNum() <= 0) {
                            cardsMap[x][y].setNum(cardsMap[x1][y].getNum());
                            cardsMap[x1][y].setNum(0);
                            x++;
                            merge=true;
                        } else if (cardsMap[x][y].equals(cardsMap[x1][y])) {
                            cardsMap[x][y].setNum(cardsMap[x][y].getNum() * 2);
                            cardsMap[x1][y].setNum(0);
                            MainActivity.getMainActivity().addScore(cardsMap[x][y].getNum());
                            merge=true;
                        }
                        break;
                    }
                }
            }
        }
        if (merge){
            addRandomNum();
            checkComplete();
        }
    }
    private void swipeUp() {
        boolean merge=false;
        for (int x = 0; x < 4; x++) {
            for (int y = 0; y < 4; y++) {
                for (int y1 = y + 1; y1 < 4; y1++) {
                    if (cardsMap[x][y1].getNum() > 0) {
                        if (cardsMap[x][y].getNum() <= 0) {
                            cardsMap[x][y].setNum(cardsMap[x][y1].getNum());
                            cardsMap[x][y1].setNum(0);
                            y--;
                            merge=true;
                        } else if (cardsMap[x][y].equals(cardsMap[x][y1])) {
                            cardsMap[x][y].setNum(cardsMap[x][y].getNum() * 2);
                            cardsMap[x][y1].setNum(0);
                            MainActivity.getMainActivity().addScore(cardsMap[x][y].getNum());
                            merge=true;
                        }
                        break;
                    }
                }
            }
        }
        if (merge){
            addRandomNum();
            checkComplete();
        }
    }
    private void swipeDown() {
        boolean merge=false;
        for (int x = 0; x < 4; x++) {
            for (int y = 3; y > 0; y--) {
                for (int y1 = y - 1; y1 >= 0; y1--) {
                    if (cardsMap[x][y1].getNum() > 0) {
                        if (cardsMap[x][y].getNum() <= 0) {
                            cardsMap[x][y].setNum(cardsMap[x][y1].getNum());
                            cardsMap[x][y1].setNum(0);
                            y++;
                            merge=true;
                        } else if (cardsMap[x][y].equals(cardsMap[x][y1])) {
                            cardsMap[x][y].setNum(cardsMap[x][y].getNum() * 2);
                            cardsMap[x][y1].setNum(0);
                            MainActivity.getMainActivity().addScore(cardsMap[x][y].getNum());
                            merge=true;
                        }
                        break;
                    }
                }
            }
        }
        if (merge){
            addRandomNum();
            checkComplete();
        }
    }
    private Card[][] cardsMap = new Card[4][4];
    private List emptyPoints = new ArrayList();
    private void checkComplete(){
        boolean complete=true;
        ALL:
        for (int y = 0; y < 4; y++) {
            for (int x = 0; x < 4; x++) {
                if (cardsMap[x][y].getNum()==0||
                        (x>0&&cardsMap[x][y].equals(cardsMap[x-1][y]))||
                        (x<3&&cardsMap[x][y].equals(cardsMap[x+1][y]))||
                        (y>0&&cardsMap[x][y].equals(cardsMap[x][y-1]))||
                        (y<3&&cardsMap[x][y].equals(cardsMap[x][y+1]))){
                    complete=false;
                    break ALL;
                }
            }
        }
        if (complete){
            new AlertDialog.Builder(getContext()).setTitle("hello").setMessage("game over").
                    setPositiveButton("重来", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    startGame();
                }
            }).show();
        }
    }
}


MainActivity.class
package com.example.xmskf.leran2048;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
    private TextView tvScore;
    private int score=0;
    private static MainActivity mainActivity=null;
    public  MainActivity(){
        mainActivity=this;
    }
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        tvScore= (TextView) findViewById(R.id.tvSorce);
    }
    public static MainActivity getMainActivity() {
        return mainActivity;
    }
    public void CleraSocore(){
        score=0;
        showScore();
    }
    public void showScore(){
        tvScore.setText("score"+score);
    }
    public void addScore(int s){
        score+=s;
        showScore();
    }
}


activity_main.xml