android 游戏 实战打飞机游戏 菜单页面(1)

目标 实现 控制 小飞机 左右移动 躲避子弹 打boss.

本节 实现 开始菜单界面

1 首先 资源文件拷过来

2, 划分游戏状态

    public static final int GAME_MENU = 0;// 游戏菜单
    public static final int GAMEING = 1;// 游戏中
    public static final int GAME_WIN = 2;// 游戏胜利
    public static final int GAME_LOST = 3;// 游戏失败
    public static final int GAME_PAUSE = -1;// 游戏菜单

    // 当前游戏状态(默认初始在游戏菜单界面)
    public static int gameState = GAME_MENU;

定义五种状态

定义完方法后 在绘图方法中 ,实体键 按下方法 ,抬起方法,触屏监听,逻辑方法,switch

//在那几个方法中加这个

                switch (gameState) {
                case GAME_MENU:

                    break;
                case GAMEING:
                    break;

                case GAME_WIN:

                    break;
                case GAME_LOST:

                    break;
                case GAME_PAUSE:
                    break;
                default:
                    break;
                }

下面再声明一些东西

//声明一个Resources实例便于加载图片
    private Resources res = this.getResources();
    //声明游戏需要用到的图片资源(图片声明)
    private Bitmap bmpBackGround;//游戏背景
    private Bitmap bmpBoom;//爆炸效果
    private Bitmap bmpBoosBoom;//Boos爆炸效果
    private Bitmap bmpButton;//游戏开始按钮
    private Bitmap bmpButtonPress;//游戏开始按钮被点击
    private Bitmap bmpEnemyDuck;//怪物鸭子
    private Bitmap bmpEnemyFly;//怪物苍蝇
    private Bitmap bmpEnemyBoos;//怪物猪头Boos
    private Bitmap bmpGameWin;//游戏胜利背景
    private Bitmap bmpGameLost;//游戏失败背景
    private Bitmap bmpPlayer;//游戏主角飞机
    private Bitmap bmpPlayerHp;//主角飞机血量
    private Bitmap bmpMenu;//菜单背景
    public static Bitmap bmpBullet;//子弹
    public static Bitmap bmpEnemyBullet;//敌机子弹
    public static Bitmap bmpBossBullet;//Boss子弹

初始化 游戏

    /**
     * SurfaceView视图创建，响应此函数
     */
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        screenW = this.getWidth();
        screenH = this.getHeight();
        initGame();
        flag = true;
        // 实例线程
        th = new Thread(this);
        // 启动线程
        th.start();
    }

    /**
     * 加载游戏资源
     */
    private void initGame() {
        //加载游戏资源
        bmpBackGround = BitmapFactory.decodeResource(res, R.drawable.background);
        bmpBoom = BitmapFactory.decodeResource(res, R.drawable.boom);
        bmpBoosBoom = BitmapFactory.decodeResource(res, R.drawable.boos_boom);
        bmpButton = BitmapFactory.decodeResource(res, R.drawable.button);
        bmpButtonPress = BitmapFactory.decodeResource(res, R.drawable.button_press);
        bmpEnemyDuck = BitmapFactory.decodeResource(res, R.drawable.enemy_duck);
        bmpEnemyFly = BitmapFactory.decodeResource(res, R.drawable.enemy_fly);
        bmpEnemyBoos = BitmapFactory.decodeResource(res, R.drawable.enemy_pig);
        bmpGameWin = BitmapFactory.decodeResource(res, R.drawable.gamewin);
        bmpGameLost = BitmapFactory.decodeResource(res, R.drawable.gamelost);
        bmpPlayer = BitmapFactory.decodeResource(res, R.drawable.player);
        bmpPlayerHp = BitmapFactory.decodeResource(res, R.drawable.hp);
        bmpMenu = BitmapFactory.decodeResource(res, R.drawable.menu);
        bmpBullet = BitmapFactory.decodeResource(res, R.drawable.bullet);
        bmpEnemyBullet = BitmapFactory.decodeResource(res, R.drawable.bullet_enemy);
        bmpBossBullet = BitmapFactory.decodeResource(res, R.drawable.boosbullet);

    }

菜单类 GameMenu

菜单类
包括 初始化绘制按钮和背景图

package com.gsf;

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.view.MotionEvent;

/**
 * 
 * @author liuml
 * @time 2016-5-27 下午5:43:34
 */
public class GameMenu {

    // 菜单背景图
    private Bitmap bmpMenu;
    // 按钮图片资源(按下和未按下图)
    private Bitmap bmpButton, bmpButtonPress;
    // 按钮的坐标
    private int btnX, btnY;
    // 按钮是否按下标识位
    private Boolean isPress;

    // 菜单初始化
    public GameMenu(Bitmap bmpMenu, Bitmap bmpButton, Bitmap bmpButtonPress) {
        this.bmpMenu = bmpMenu;
        this.bmpButton = bmpButton;
        this.bmpButtonPress = bmpButtonPress;
        // X居中，Y紧接屏幕底部
        btnX = MySurfaceView.screenW / 2 - bmpButton.getWidth() / 2;
        btnY = MySurfaceView.screenH - bmpButton.getHeight();
        isPress = false;
    }

    public void draw(Canvas canvas, Paint paint) {
        // 绘制菜单背景图
        canvas.drawBitmap(bmpMenu, 0, 0, paint);
        if (isPress) {
            canvas.drawBitmap(bmpButtonPress, btnX, btnY, paint);
        } else {
            canvas.drawBitmap(bmpButton, btnX, btnY, paint);

        }

    }

    public void onTouchEvent(MotionEvent event) {
        // 获取当前触控位置
        int pointX = (int) event.getX();
        int pointyY = (int) event.getY();

        // 当用户是按下和移动时
        if (event.getAction() == MotionEvent.ACTION_DOWN
                || event.getAction() == MotionEvent.ACTION_MOVE) {

            // 判定用户是否点击按钮
            if (pointX > btnX && pointX < btnX + bmpButton.getWidth()) {
                if (pointyY > btnY && pointyY < btnY + bmpButton.getHeight()) {
                    isPress = true;
                } else {
                    isPress = false;
                }
            } else {
                isPress = false;
            }

            // 当用于是抬起动作时
        } else if (event.getAction() == MotionEvent.ACTION_UP) {
            // 判断抬起时是否点击按钮,防止用户移动到别处
            if (pointX > btnX && pointX < btnX + bmpButton.getWidth()) {
                if (pointyY > btnY && pointyY < btnY + bmpButton.getHeight()) {
                    isPress = false;//抬起后重置 还原Button状态为未按下状态
                    //改变当前游戏状态为开始游戏
                    MySurfaceView.gameState = MySurfaceView.GAMEING;
                }
            }
        }

    }
}

==============

然后 在MySurfaceView中使用 GameMenu 使用菜单类

public class MySurfaceView extends SurfaceView implements Callback, Runnable {
    private SurfaceHolder sfh;
    private Paint paint;
    private Thread th;
    private boolean flag;
    private Canvas canvas;

    // 1 定义游戏状态常量
    public static final int GAME_MENU = 0;// 游戏菜单
    public static final int GAMEING = 1;// 游戏中
    public static final int GAME_WIN = 2;// 游戏胜利
    public static final int GAME_LOST = 3;// 游戏失败
    public static final int GAME_PAUSE = -1;// 游戏菜单
    // 当前游戏状态(默认初始在游戏菜单界面)
    public static int gameState = GAME_MENU;
    // 声明一个Resources实例便于加载图片
    private Resources res = this.getResources();
    // 声明游戏需要用到的图片资源(图片声明)
    private Bitmap bmpBackGround;// 游戏背景
    private Bitmap bmpBoom;// 爆炸效果
    private Bitmap bmpBoosBoom;// Boos爆炸效果
    private Bitmap bmpButton;// 游戏开始按钮
    private Bitmap bmpButtonPress;// 游戏开始按钮被点击
    private Bitmap bmpEnemyDuck;// 怪物鸭子
    private Bitmap bmpEnemyFly;// 怪物苍蝇
    private Bitmap bmpEnemyBoos;// 怪物猪头Boos
    private Bitmap bmpGameWin;// 游戏胜利背景
    private Bitmap bmpGameLost;// 游戏失败背景
    private Bitmap bmpPlayer;// 游戏主角飞机
    private Bitmap bmpPlayerHp;// 主角飞机血量
    private Bitmap bmpMenu;// 菜单背景
    public static Bitmap bmpBullet;// 子弹
    public static Bitmap bmpEnemyBullet;// 敌机子弹
    public static Bitmap bmpBossBullet;// Boss子弹
    public static int screenW;
    public static int screenH;

    //
    private GameMenu gameMenu;

    /**
     * SurfaceView初始化函数
     */
    public MySurfaceView(Context context) {
        super(context);
        sfh = this.getHolder();
        sfh.addCallback(this);
        paint = new Paint();
        paint.setColor(Color.WHITE);
        paint.setAntiAlias(true);
        setFocusable(true);
    }

    /**
     * SurfaceView视图创建，响应此函数
     */
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        screenW = this.getWidth();
        screenH = this.getHeight();
        initGame();
        flag = true;
        // 实例线程
        th = new Thread(this);
        // 启动线程
        th.start();
    }

    /**
     * 加载游戏资源
     */
    private void initGame() {
        // 加载游戏资源
        bmpBackGround = BitmapFactory
                .decodeResource(res, R.drawable.background);
        bmpBoom = BitmapFactory.decodeResource(res, R.drawable.boom);
        bmpBoosBoom = BitmapFactory.decodeResource(res, R.drawable.boos_boom);
        bmpButton = BitmapFactory.decodeResource(res, R.drawable.button);
        bmpButtonPress = BitmapFactory.decodeResource(res,
                R.drawable.button_press);
        bmpEnemyDuck = BitmapFactory.decodeResource(res, R.drawable.enemy_duck);
        bmpEnemyFly = BitmapFactory.decodeResource(res, R.drawable.enemy_fly);
        bmpEnemyBoos = BitmapFactory.decodeResource(res, R.drawable.enemy_pig);
        bmpGameWin = BitmapFactory.decodeResource(res, R.drawable.gamewin);
        bmpGameLost = BitmapFactory.decodeResource(res, R.drawable.gamelost);
        bmpPlayer = BitmapFactory.decodeResource(res, R.drawable.player);
        bmpPlayerHp = BitmapFactory.decodeResource(res, R.drawable.hp);
        bmpMenu = BitmapFactory.decodeResource(res, R.drawable.menu);
        bmpBullet = BitmapFactory.decodeResource(res, R.drawable.bullet);
        bmpEnemyBullet = BitmapFactory.decodeResource(res,
                R.drawable.bullet_enemy);
        bmpBossBullet = BitmapFactory
                .decodeResource(res, R.drawable.boosbullet);

        //菜单类实例化
        gameMenu = new GameMenu(bmpMenu, bmpButton, bmpButtonPress);

    }

    /**
     * 游戏绘图
     */
    public void myDraw() {
        try {
            canvas = sfh.lockCanvas();
            if (canvas != null) {
                canvas.drawColor(Color.WHITE);
                // 绘图函数根据游戏状态不同进行不同绘制

                switch (gameState) {
                case GAME_MENU:

                    gameMenu.draw(canvas, paint);
                    break;
                case GAMEING:
                    break;

                case GAME_WIN:

                    break;
                case GAME_LOST:

                    break;
                case GAME_PAUSE:
                    break;
                default:
                    break;
                }

            }
        } catch (Exception e) {
            // TODO: handle exception
        } finally {
            if (canvas != null)
                sfh.unlockCanvasAndPost(canvas);
        }
    }

    /**
     * 触屏事件监听
     */
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (gameState) {
        case GAME_MENU:

            gameMenu.onTouchEvent(event);
            break;
        case GAMEING:
            break;

        case GAME_WIN:

            break;
        case GAME_LOST:

            break;
        case GAME_PAUSE:

            break;
        }
        return true;
    }

    /**
     * 按键事件监听
     */
    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        switch (gameState) {
        case GAME_MENU:

            break;
        case GAMEING:
            break;

        case GAME_WIN:

            break;
        case GAME_LOST:

            break;
        case GAME_PAUSE:
            break;
        }
        return super.onKeyDown(keyCode, event);
    }

    @Override
    public boolean onKeyUp(int keyCode, KeyEvent event) {
        switch (gameState) {
        case GAME_MENU:

            break;
        case GAMEING:
            break;

        case GAME_WIN:

            break;
        case GAME_LOST:

            break;
        case GAME_PAUSE:
            break;
        }
        return super.onKeyUp(keyCode, event);
    }

    /**
     * 游戏逻辑
     */
    private void logic() {
        switch (gameState) {
        case GAME_MENU:

            break;
        case GAMEING:
            break;

        case GAME_WIN:

            break;
        case GAME_LOST:

            break;
        case GAME_PAUSE:
            break;
        }

    }

    @Override
    public void run() {
        while (flag) {
            long start = System.currentTimeMillis();
            myDraw();
            logic();
            long end = System.currentTimeMillis();
            try {
                if (end - start < 50) {
                    Thread.sleep(50 - (end - start));
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * SurfaceView视图状态发生改变，响应此函数
     */
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
    }

    /**
     * SurfaceView视图消亡时，响应此函数
     */
    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        flag = false;
    }

}

效果图