Android 2d游戏开发之贪吃蛇基于surfaceview

2024-12-24 07:52:57

前两个游戏是基于View游戏框架的，View游戏框架只适合做静止的，异步触发的游戏，如果做一直在动的游戏，View的效率就不高了，我们需要一种同步触发的游戏框架，也就是surfaceview游戏框架，你可能会问，什么乱七八糟的，啥叫同步？啥叫异步？。。。我就不告诉你。。。我们先看一下这个同步框架，看看骚年你能不能自己领悟。

GameView.java(继承自SurfaceView)

package com.next.eatsnake;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnTouchListener;

import java.util.Random;

/**
 * Created by Next on 2016/3/24 0024.
 */
public class GameView extends SurfaceView implements SurfaceHolder.Callback,OnTouchListener,Runnable {

    enum GameState{
        Menu,
        Playing,
        Over;
    }
    GameState gameState;//游戏状态
    Thread thread;//游戏线程
    Boolean flag;//游戏循环控制标志
    Canvas canvas;//画布
    Paint paint;//画笔
    SurfaceHolder holder;//SurfaceView控制句柄
    Random random;//随机数
    NextEvent nextEvent;//游戏输入事件
    int scrW,scrH;//屏幕的宽和高
    public GameView(Context context) {
        super(context);
        gameState = GameState.Menu;
        flag = true;
        paint = new Paint();
        paint.setAntiAlias(true);//笔迹平滑
        thread = new Thread(this);
        random = new Random();
        nextEvent = new NextEvent();
        holder = this.getHolder();
        holder.addCallback(this);
        this.setOnTouchListener(this);
        setKeepScreenOn(true);
        scrW = ((MainActivity)context).getWindowManager().getDefaultDisplay().getWidth();
        scrH = ((MainActivity)context).getWindowManager().getDefaultDisplay().getHeight();
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            nextEvent.setDownX((int) event.getX());
            nextEvent.setDownY((int) event.getY());
        }else if (event.getAction() == MotionEvent.ACTION_UP) {
            nextEvent.setUpX((int) event.getX());
            nextEvent.setUpY((int) event.getY());
        }
        return true;
    }

    private void mLogic(){
        switch (gameState){
            case Menu:
                menuLogic();
                break;
            case Playing:
                playingLogic();
                break;
            case Over:
                overLogic();
                break;
        }
        nextEvent.init();//每次逻辑循环后，清空事件
    }

    private void menuLogic(){
        if(nextEvent.getUpX() > 0){
            gameState = GameState.Playing;
        }
    }

    private void playingLogic(){
        if(nextEvent.getDir() == NextEvent.DOWN){
            gameState = GameState.Over;
        }
    }

    private void overLogic(){
        if(nextEvent.getDir() == NextEvent.RIGHT){
            gameState = GameState.Menu;
        }
    }

    private void mDraw(){
        try {
            canvas = holder.lockCanvas();
            canvas.drawColor(Color.WHITE);
            switch (gameState){
                case Menu:
                    menuDraw(canvas);
                    break;
                case Playing:
                    playingDraw(canvas);
                    break;
                case Over:
                    overDraw(canvas);
                    break;
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            holder.unlockCanvasAndPost(canvas);
        }
    }

    private void menuDraw(Canvas canvas){
        paint.setColor(Color.RED);
        paint.setTextSize(50);
        canvas.drawText("I am in menu.Touch me to next scence",100,100,paint);
    }

    private void playingDraw(Canvas canvas){
        paint.setColor(Color.RED);
        paint.setTextSize(50);
        canvas.drawText("I am in playing,Slide down to next scence ",100,100,paint);
    }

    private void overDraw(Canvas canvas){
        paint.setColor(Color.RED);
        paint.setTextSize(50);
        canvas.drawText("I am in over,Slide right to next scence",100,100,paint);
    }

    //这里就是同步触发机制了
    //每一个时钟周期，执行一次逻辑方法和绘图方法
    @Override
    public void run() {
        while(flag){
            mLogic();
            mDraw();
            try {
                Thread.sleep(500);
            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }

    //SurfaceView创建时调用
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        thread.start();
    }

    //SurfaceView发生改变时调用
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

    }

    //SurfaceView销毁时调用
    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        flag = false;
    }

}

这只是一个游戏框架，还没有往里写任何内容，但根据我的经验（虽然我也没有很多经验），这里已经包括了所有游戏（这里特指小游戏-_-）的主体框架代码，有了这个框架，我们就只需要写游戏的逻辑和绘图方法了，不用纠结怎么搭建游戏框架了。
这里我还加了一个NextEvent的方法，在里面我封装了上个游戏用到的滑动手势，在这个挨踢圈里，人们最常说的一句话就是：不要重复造轮子。当我们看到写了很多重复代码时，就是我们需要精简的时候了。
上代码：

NextEvent.java

package com.next.eatsnake;

/**
 * Created by Next on 2016/3/24 0024.
 */
public class NextEvent {
    public static final int LEFT = 1;
    public static final int RIGHT = 2;
    public static final int UP = 3;
    public static final int DOWN = 4;
    public static final int QUIET = -1;//没有滑动
    private int dir;
    private int downX,downY,upX,upY;
    public NextEvent()
    {
        init();
    }
    public void init(){
        this.dir = QUIET;
        this.downX = -1;
        this.downY = -1;
        this.upX = -1;
        this.upY = -1;
    }
    public int getDir(){
        float offsetX,offsetY;
        offsetX = upX - downX;
        offsetY = upY - downY;
        if (Math.abs(offsetX) > Math.abs(offsetY)) {
            if (offsetX > 5 ) {
                dir = RIGHT;
            }else if (offsetX < -5) {
                dir = LEFT;
            }
        }else {
            if (offsetY > 5) {
                dir = DOWN;
            }else if (offsetY < -5) {
                dir = UP;
            }
        }
        return dir;
    }

    public int getDownX() {
        return downX;
    }

    public void setDownX(int downX) {
        this.downX = downX;
    }

    public int getDownY() {
        return downY;
    }

    public void setDownY(int downY) {
        this.downY = downY;
    }

    public int getUpX() {
        return upX;
    }

    public void setUpX(int upX) {
        this.upX = upX;
    }

    public int getUpY() {
        return upY;
    }

    public void setUpY(int upY) {
        this.upY = upY;
    }
}

这个NextEvent是用来存储用户输入事件的，我们只是存储，而没有直接触发游戏逻辑。那么什么时候用到读取这个NextEvent呢？如果你仔细看了第一段代码，应该已经知道了——在每一个时钟周期的逻辑方法里判断NextEvent，并由此改变游戏逻辑。这种就是同步机制，而用户输入事件游戏逻辑就随之改变的就是异步机制。

下面我们用这个框架做一个贪吃蛇游戏，效果图如下：

MainActivity.java

package com.next.eatsnake;

import android.app.Activity;
import android.os.Bundle;
import android.view.Window;
import android.view.WindowManager;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(new GameView(this));
    }
}

GameView.java

package com.next.eatsnake;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnTouchListener;

import java.util.ArrayList;
import java.util.Random;

/**
 * Created by Administrator on 2016/3/24 0024.
 */
public class GameView extends SurfaceView implements SurfaceHolder.Callback,OnTouchListener,Runnable {

    enum GameState{
        Menu,
        Playing,
        Over;
    }
    GameState gameState;//游戏状态
    Thread thread;//游戏线程
    Boolean flag;//游戏循环控制标志
    Canvas canvas;//画布
    Paint paint;//画笔
    SurfaceHolder holder;//SurfaceView控制句柄
    public static Random random;//随机数
    NextEvent nextEvent;//游戏输入事件
    int scrW,scrH;//屏幕的宽和高
    final int MAX_X = 15;
    int MAX_Y;//竖向tile数量根据MAX_X动态计算，保证tile是正方形
    public static Tile[][] tiles;
    Snake snake;
    public static boolean isEatFood;
    public GameView(Context context) {
        super(context);
        gameState = GameState.Menu;
        flag = true;
        paint = new Paint();
        paint.setAntiAlias(true);//笔迹平滑
        paint.setTextAlign(Paint.Align.CENTER);//文字中间对齐
        thread = new Thread(this);
        random = new Random();
        nextEvent = new NextEvent();
        holder = this.getHolder();
        holder.addCallback(this);
        this.setOnTouchListener(this);
        setKeepScreenOn(true);
        scrW = ((MainActivity)context).getWindowManager().getDefaultDisplay().getWidth();
        scrH = ((MainActivity)context).getWindowManager().getDefaultDisplay().getHeight();
        Tile.width = scrW/MAX_X;
        MAX_Y = scrH/Tile.width;
        tiles = new Tile[MAX_X][MAX_Y];
        isEatFood = false;
    }

    private void newGame(){
        for (int x = 0;x < MAX_X;x++){
            for (int y = 0;y < MAX_Y;y++){
                if (x == 0||y == 0||x == MAX_X-1||y == MAX_Y-1){
                    tiles[x][y] = new Tile(x,y,Tile.TYPE_WALL);
                }else {
                    tiles[x][y] = new Tile(x,y,Tile.TYPE_NULL);
                }
            }
        }
        snake = new Snake(tiles[4][4],tiles[5][4],tiles[6][4], NextEvent.DOWN);
        addFood();
        addFood();
        addFood();
    }

    public void addFood(){
        ArrayList<Tile> nullList = new ArrayList<Tile>();
        for (int x = 0;x < MAX_X;x++){
            for (int y = 0;y < MAX_Y;y++){
                if (tiles[x][y].getType() == Tile.TYPE_NULL){
                    nullList.add(tiles[x][y]);
                }
            }
        }
        if (nullList.size()!=0){
            nullList.get(random.nextInt(nullList.size())).setType(Tile.TYPE_FOOD);
        }
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {
        if (event.getAction() == MotionEvent.ACTION_DOWN) {
            nextEvent.setDownX((int) event.getX());
            nextEvent.setDownY((int) event.getY());
        }else if (event.getAction() == MotionEvent.ACTION_UP) {
            nextEvent.setUpX((int) event.getX());
            nextEvent.setUpY((int) event.getY());
        }
        return true;
    }

    private void mLogic(){
        switch (gameState){
            case Menu:
                menuLogic();
                break;
            case Playing:
                playingLogic();
                break;
            case Over:
                overLogic();
                break;
        }
        nextEvent.init();//每次逻辑循环后，清空事件
    }

    private void menuLogic(){
        if(nextEvent.getUpX() > 0){
            gameState = GameState.Playing;
            newGame();
        }
    }

    private void playingLogic(){
        if (nextEvent.getDir()!=NextEvent.QUIET){
            snake.setDir(nextEvent.getDir());
        }
        snake.move();
        if (isEatFood){
            addFood();
            isEatFood = false;
        }
        if(!snake.isAlive()){
            gameState = GameState.Over;
        }
    }

    private void overLogic(){
        if(nextEvent.getUpX() > 0){
            gameState = GameState.Playing;
            newGame();
        }
    }

    private void mDraw(){
        try {
            canvas = holder.lockCanvas();
            canvas.drawColor(Color.WHITE);
            switch (gameState){
                case Menu:
                    menuDraw(canvas);
                    break;
                case Playing:
                    playingDraw(canvas);
                    break;
                case Over:
                    overDraw(canvas);
                    break;
            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            holder.unlockCanvasAndPost(canvas);
        }
    }

    private void menuDraw(Canvas canvas){
        paint.setColor(Color.BLACK);
        paint.setTextSize(50);
        canvas.drawText("Eat Snake,Touch me and start",scrW/2,scrH/2,paint);
    }

    private void playingDraw(Canvas canvas){
        for (int x = 0;x < MAX_X;x++){
            for (int y = 0;y < MAX_Y;y++){
                tiles[x][y].draw(canvas,paint);
            }
        }
    }

    private void overDraw(Canvas canvas){
        paint.setColor(Color.BLACK);
        paint.setTextSize(50);
        canvas.drawText("Your score is:"+snake.getLength(),scrW/2,scrH/4,paint);
        canvas.drawText("Touch me and try again",scrW/2,scrH/2,paint);
    }

    @Override
    public void run() {
        while(flag){
            mLogic();
            mDraw();
            try {
                Thread.sleep(500);
            }catch (Exception e){
                e.printStackTrace();
            }
        }
    }

    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        thread.start();
    }

    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

    }

    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        flag = false;
    }

}

Tile.java

package com.next.eatsnake;

import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;

/**
 * Created by Next on 2016/3/26 0026.
 */
public class Tile {
    public static final int TYPE_NULL = 0;//空
    public static final int TYPE_WALL = 1;//墙
    public static final int TYPE_HEAD = 2;//蛇头
    public static final int TYPE_BODY = 3;//蛇身
    public static final int TYPE_TAIL = 4;//蛇尾
    public static final int TYPE_FOOD = 5;//食物
    private int x,y;
    private int type;
    public static int width;

    public Tile(int x, int y, int type) {
        this.x = x;
        this.y = y;
        this.type = type;
    }

    public void draw(Canvas canvas,Paint paint){
        switch (type){
            case TYPE_NULL:
                break;
            case TYPE_WALL:
                paint.setColor(Color.BLACK);
                canvas.drawCircle(x*width+width/2,y*width+width/2,width/2,paint);
                break;
            case TYPE_HEAD:
                paint.setColor(Color.MAGENTA);
                canvas.drawCircle(x*width+width/2,y*width+width/2,width/2,paint);
                paint.setColor(Color.WHITE);
                canvas.drawCircle(x*width+width/2,y*width+width/2,width/8,paint);
                break;
            case TYPE_BODY:
                paint.setColor(Color.MAGENTA);
                canvas.drawCircle(x*width+width/2,y*width+width/2,width/2,paint);
                break;
            case TYPE_TAIL:
                paint.setColor(Color.MAGENTA);
                paint.setStrokeWidth(10);
                canvas.drawLine(x * width, y * width + width / 2, x * width + width / 2, y * width, paint);
                canvas.drawLine(x*width+ width / 2,y*width,x*width+width,y*width+width/2,paint);
                canvas.drawLine(x*width+width,y*width+width/2,x*width+width/2,y*width+width,paint);
                canvas.drawLine(x*width+width/2,y*width+width,x*width,y*width+ width / 2,paint);
                break;
            case TYPE_FOOD:
                switch (GameView.random.nextInt(3)){
                    case 0:
                        paint.setColor(Color.YELLOW);
                        break;
                    case 1:
                        paint.setColor(Color.GREEN);
                        break;
                    case 2:
                        paint.setColor(Color.CYAN);
                        break;
                }
                canvas.drawCircle(x*width+width/2,y*width+width/2,width/2,paint);
                break;

        }
    }

    public int getX() {
        return x;
    }

    public void setX(int x) {
        this.x = x;
    }

    public int getY() {
        return y;
    }

    public void setY(int y) {
        this.y = y;
    }

    public int getType() {
        return type;
    }

    public void setType(int type) {
        this.type = type;
    }
}

Snake.java

package com.next.eatsnake;

import java.util.ArrayList;

/**
 * Created by Administrator on 2016/3/26 0026.
 */
public class Snake {
    private ArrayList<Tile> snake;
    private int dir;
    private boolean isAlive;

    public Snake(Tile head,Tile body,Tile tail,int dir){
        snake = new ArrayList<Tile>();
        head.setType(Tile.TYPE_HEAD);
        body.setType(Tile.TYPE_BODY);
        tail.setType(Tile.TYPE_TAIL);
        snake.add(head);
        snake.add(body);
        snake.add(tail);
        isAlive = true;
        this.dir = dir;
    }

    public void move(){
        if (!isAlive)
            return;
        switch (dir){
            case NextEvent.LEFT:
                switch (GameView.tiles[snake.get(0).getX()-1][snake.get(0).getY()].getType()){
                    case Tile.TYPE_WALL:
                    case Tile.TYPE_BODY:
                    case Tile.TYPE_TAIL:
                        isAlive = false;
                        break;
                    case Tile.TYPE_FOOD:
                        GameView.tiles[snake.get(0).getX()-1][snake.get(0).getY()].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX() - 1][snake.get(0).getY()]);
                        GameView.isEatFood = true;
                        break;
                    case Tile.TYPE_NULL:
                        GameView.tiles[snake.get(0).getX()-1][snake.get(0).getY()].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX() - 1][snake.get(0).getY()]);
                        snake.get(snake.size()-1).setType(Tile.TYPE_NULL);
                        snake.remove(snake.size()-1);
                        snake.get(snake.size()-1).setType(Tile.TYPE_TAIL);
                        break;
                }
                break;
            case NextEvent.RIGHT:
                switch (GameView.tiles[snake.get(0).getX()+1][snake.get(0).getY()].getType()){
                    case Tile.TYPE_WALL:
                    case Tile.TYPE_BODY:
                    case Tile.TYPE_TAIL:
                        isAlive = false;
                        break;
                    case Tile.TYPE_FOOD:
                        GameView.tiles[snake.get(0).getX()+1][snake.get(0).getY()].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX() + 1][snake.get(0).getY()]);
                        GameView.isEatFood = true;
                        break;
                    case Tile.TYPE_NULL:
                        GameView.tiles[snake.get(0).getX()+1][snake.get(0).getY()].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX() + 1][snake.get(0).getY()]);
                        snake.get(snake.size()-1).setType(Tile.TYPE_NULL);
                        snake.remove(snake.size() - 1);
                        snake.get(snake.size()-1).setType(Tile.TYPE_TAIL);
                        break;
                }
                break;
            case NextEvent.UP:
                switch (GameView.tiles[snake.get(0).getX()][snake.get(0).getY()-1].getType()){
                    case Tile.TYPE_WALL:
                    case Tile.TYPE_BODY:
                    case Tile.TYPE_TAIL:
                        isAlive = false;
                        break;
                    case Tile.TYPE_FOOD:
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()-1].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX()][snake.get(0).getY()-1]);
                        GameView.isEatFood = true;
                        break;
                    case Tile.TYPE_NULL:
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()-1].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX()][snake.get(0).getY()-1]);
                        snake.get(snake.size()-1).setType(Tile.TYPE_NULL);
                        snake.remove(snake.size()-1);
                        snake.get(snake.size()-1).setType(Tile.TYPE_TAIL);
                        break;
                }
                break;
            case NextEvent.DOWN:
                switch (GameView.tiles[snake.get(0).getX()][snake.get(0).getY()+1].getType()){
                    case Tile.TYPE_WALL:
                    case Tile.TYPE_BODY:
                    case Tile.TYPE_TAIL:
                        isAlive = false;
                        break;
                    case Tile.TYPE_FOOD:
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()+1].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX()][snake.get(0).getY() + 1]);
                        GameView.isEatFood = true;
                        break;
                    case Tile.TYPE_NULL:
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()+1].setType(Tile.TYPE_HEAD);
                        GameView.tiles[snake.get(0).getX()][snake.get(0).getY()].setType(Tile.TYPE_BODY);
                        snake.add(0, GameView.tiles[snake.get(0).getX()][snake.get(0).getY()+1]);
                        snake.get(snake.size()-1).setType(Tile.TYPE_NULL);
                        snake.remove(snake.size()-1);
                        snake.get(snake.size()-1).setType(Tile.TYPE_TAIL);
                        break;
                }
                break;
        }
    }

    public void setDir(int dir){
        if (this.dir == dir||this.dir == -dir||dir == NextEvent.QUIET)
            return;
        else
            this.dir = dir;
    }

    public boolean isAlive(){
        return isAlive;
    }

    public int getLength(){
        return snake.size();
    }
}

NextEvent.java

就是刚开始介绍的那个类，这里就不重复贴出了

到此这篇关于Android 2d游戏开发之贪吃蛇基于surfaceview的文章就介绍到这了,更多相关Android 贪吃蛇内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！

Android 游戏开发之Canvas画布的介绍及方法

Canvas,在英语中,这个单词的意思是帆布.在Android中,则把Canvas当做画布,只要我们借助设置好的画笔(Paint类)就可以在画布上绘制我们想要的任何东西:另外它也是显示位图(Bitmap类)的核心类.随用户的喜好,Canvas还可设置一些关于画布的属性,比如,画布的颜色.尺寸等.Canvas提供了如下一些方法: Canvas(): 创建一个空的画布,可以使用setBitmap()方法来设置绘制具体的画布. Canvas(Bitmap bitmap): 以bitmap对
Android游戏源码分享之2048

引言程序猿们,是否还在为你的老板辛辛苦苦的打工而拿着微薄的薪水呢,还是不知道如何用自己的应用或游戏来赚钱呢! 在这里IQuick将教您如何同过自己的应用来赚取自己的第一桶金! 你是说自己的应用还没有做出来? 不,在這里已经为你提供好了一个完整的游戏应用了,在文章的下面有源码的地址哦.你只要稍做修改就可以变成一个完全属于自己的应用了,比如将4*4换成5*5,甚至是其它的.如果你实在是慵懒至极的话,你只要将本应用的包名及广告换成自己的,就可以上传到市场上轻轻松松赚取自己的第一桶金了. 如果你觉得本
Unity3D游戏引擎实现在Android中打开WebView的实例

本文讲述了如何在Unity中调用Android中的WebView组件,实现内部浏览器样式的页面切换.首先打开Eclipse创建一个Android的工程: UnityTestActivity.java 入口Activity ,Unity中会调用这个Activity中的方法从而打开网页. package com.xys; import android.content.Context; import android.content.Intent; import android.os.Bundle; i
Android开心消消乐代码实例详解

突然想要在android上写一个消消乐的代码,在此之前没有系统地学过java的面向对象,也没有任何android相关知识,不过还是会一点C++.8月初开始搭建环境,在这上面花了相当多的时间,然后看了一些视频和电子书,对android有了一个大概的了解,感觉差不多了的时候就开始写了. 疯狂地查阅各种资料,反反复复了好几天后,也算是写出了个成品.原计划有很多地方还是可以继续写下去的,比如UI设计,比如动画特效,时间设计,关卡设计,以及与数据库的连接,如果可以的话还能写个联网功能,当然因为写到后期内心
Android高仿2048小游戏实现代码

刚开始进入Splash界面: 1.SplashActivity.Java(两秒后进入开始界面,Splash界面的布局只有一个图片,在博客后,会展示给大家看) public class SplashActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.a
Android仿开心消消乐大树星星无限循环效果

啥都不说先上效果图,这个是我项目里的效果: 下面的是我抽取出来的 demo 适配啥的我基本上都做好了没做其他的 ok 下面说一下思路把首先说一下原理我是使用bitmap 创建两张图一开始的时候一张在下面记为1号一张在上面记为2号当手指向下滑动时判断 1号的起点位置是否完全超出屏幕如果超出屏幕的话那么将2号变为下面 1号变为上面 (移动1号的Y坐标) 大体思路是这样. 里面还有许多判断比如是否能向下滑动起点位置, 星星的判定哎呀好烦说的东西太多啦来张我的
Android游戏开发实践之人物移动地图的平滑滚动处理

如图所示为程序效果动画图地图滚动的原理在本人之前博客的文章中介绍过人物在屏幕中的移动方式,因为之前拼的游戏地图是完全填充整个手机屏幕的,所以无需处理地图的平滑滚动.这篇文章我着重的向大家介绍一下控制人物移动后地图滚动的处理方式.举个例子如上图所示比如人物向右移动,如果地图贴在屏幕左边边界将先移动人物在地图的坐标,当人物在屏幕中超过三分之二后则将地图向人物行走的反方向移动给玩家一种人物还在向右移动的假象,其实这时候人物只是播放向右行走的动画在屏幕中的坐标不变 ,当地图向人物行走反方
以一个着色游戏展开讲解Android中区域图像填色的方法

一.着色游戏概述近期群里偶然看到一哥们在群里聊不规则图像填充什么四联通.八联通什么的,就本身好学务实的态度去查阅了相关资料.对于这类着色的资料,最好的就是去搜索些相关app,根据我的观察呢,不规则图像填充在着色游戏里面应用居多,不过大致可以分为两种: 基于层的的填充基于边界的填充那么针对上述两种,我们会通过两篇博文来讲解,本篇就是叙述基于层的填充方式,那么什么基于层的填充方式呢?其实就是一张图实际上是由多个层组成的,每个层显示部分图像(无图像部分为透明),多层叠加后形成一张完整的图案,图层
Android五子棋游戏程序完整实例分析

最近学习了五子棋的课程,感觉挺不错.然后自己写了个关于五子棋的android程序,从中还是能够学习到很多东西的.现在我们开始今天五子棋程序的编写历程.程序的源码请参见友情链接: 好了,我们现在开始一步步的构建出项目来,首先是如下的项目结构图: 运行的效果图: 一些前期做准备的代码 1. 主活动类MainActivity,在菜单中加入了再来一局的功能: public class MainActivity extends AppCompatActivity { private ChessBoardV
Android游戏开发之碰撞检测（矩形碰撞、圆形碰撞、像素碰撞）

本文为大家分享了Android游戏开发之碰撞检测,供大家参考,具体内容如下矩形碰撞原理: 两个矩形位置的四种情况不是这四中情况则碰撞圆形碰撞原理: 利用两个圆心之间的距离进行判定.当两个圆心的距离小于半径之和则碰撞. 像素碰撞原理:不适用遍历所有像素检测太多了多矩形碰撞原理:设置多个矩形碰撞检测区域检测碰撞矩形数组与另一碰撞矩形数组之间的位置关系. 矩形碰撞代码: public class MySurfaceView extends SurfaceView imp

Android 2d游戏开发之贪吃蛇基于surfaceview

GameView.java(继承自SurfaceView)

NextEvent.java

MainActivity.java

GameView.java

Tile.java

Snake.java

相关推荐

随机推荐