android 游戲 實戰打飛機游戲 菜單頁面

目標 實現 控制 小飛機 左右移動 躲避子彈 打boss.

本節 實現 開始菜單界面

1 首先 資源文件拷過來

2, 劃分游戲狀態

    public static final int GAME_MENU = 0;// 游戲菜單
    public static final int GAMEING = 1;// 游戲中
    public static final int GAME_WIN = 2;// 游戲勝利
    public static final int GAME_LOST = 3;// 游戲失敗
    public static final int GAME_PAUSE = -1;// 游戲菜單

    // 當前游戲狀態(默認初始在游戲菜單界面)
    public static int gameState = GAME_MENU;

定義五種狀態

定義完方法後 在繪圖方法中 ,實體鍵 按下方法 ,抬起方法,觸屏監聽,邏輯方法,switch

//在那幾個方法中加這個

                switch (gameState) {
                case GAME_MENU:

                    break;
                case GAMEING:
                    break;

                case GAME_WIN:

                    break;
                case GAME_LOST:

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

下面再聲明一些東西

//聲明一個Resources實例便於加載圖片
    private Resources res = this.getResources();
    //聲明游戲需要用到的圖片資源(圖片聲明)
    private Bitmap bmpBackGround;//游戲背景
    private Bitmap bmpBoom;//爆炸效果
    private Bitmap bmpBoosBoom;//Boos爆炸效果
    private Bitmap bmpButton;//游戲開始按鈕
    private Bitmap bmpButtonPress;//游戲開始按鈕被點擊
    private Bitmap bmpEnemyDuck;//怪物鴨子
    private Bitmap bmpEnemyFly;//怪物蒼蠅
    private Bitmap bmpEnemyBoos;//怪物豬頭Boos
    private Bitmap bmpGameWin;//游戲勝利背景
    private Bitmap bmpGameLost;//游戲失敗背景
    private Bitmap bmpPlayer;//游戲主角飛機
    private Bitmap bmpPlayerHp;//主角飛機血量
    private Bitmap bmpMenu;//菜單背景
    public static Bitmap bmpBullet;//子彈
    public static Bitmap bmpEnemyBullet;//敵機子彈
    public static Bitmap bmpBossBullet;//Boss子彈

初始化 游戲

    /**
     * SurfaceView視圖創建，響應此函數
     */
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        screenW = this.getWidth();
        screenH = this.getHeight();
        initGame();
        flag = true;
        // 實例線程
        th = new Thread(this);
        // 啟動線程
        th.start();
    }

    /**
     * 加載游戲資源
     */
    private void initGame() {
        //加載游戲資源
        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);

    }

菜單類 GameMenu

菜單類
包括 初始化繪制按鈕和背景圖

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 {

    // 菜單背景圖
    private Bitmap bmpMenu;
    // 按鈕圖片資源(按下和未按下圖)
    private Bitmap bmpButton, bmpButtonPress;
    // 按鈕的坐標
    private int btnX, btnY;
    // 按鈕是否按下標識位
    private Boolean isPress;

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

    public void draw(Canvas canvas, Paint paint) {
        // 繪制菜單背景圖
        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) {
        // 獲取當前觸控位置
        int pointX = (int) event.getX();
        int pointyY = (int) event.getY();

        // 當用戶是按下和移動時
        if (event.getAction() == MotionEvent.ACTION_DOWN
                || event.getAction() == MotionEvent.ACTION_MOVE) {

            // 判定用戶是否點擊按鈕
            if (pointX > btnX && pointX < btnX + bmpButton.getWidth()) {
                if (pointyY > btnY && pointyY < btnY + bmpButton.getHeight()) {
                    isPress = true;
                } else {
                    isPress = false;
                }
            } else {
                isPress = false;
            }

            // 當用於是抬起動作時
        } else if (event.getAction() == MotionEvent.ACTION_UP) {
            // 判斷抬起時是否點擊按鈕,防止用戶移動到別處
            if (pointX > btnX && pointX < btnX + bmpButton.getWidth()) {
                if (pointyY > btnY && pointyY < btnY + bmpButton.getHeight()) {
                    isPress = false;//抬起後重置 還原Button狀態為未按下狀態
                    //改變當前游戲狀態為開始游戲
                    MySurfaceView.gameState = MySurfaceView.GAMEING;
                }
            }
        }

    }
}

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

然後 在MySurfaceView中使用 GameMenu 使用菜單類

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

    // 1 定義游戲狀態常量
    public static final int GAME_MENU = 0;// 游戲菜單
    public static final int GAMEING = 1;// 游戲中
    public static final int GAME_WIN = 2;// 游戲勝利
    public static final int GAME_LOST = 3;// 游戲失敗
    public static final int GAME_PAUSE = -1;// 游戲菜單
    // 當前游戲狀態(默認初始在游戲菜單界面)
    public static int gameState = GAME_MENU;
    // 聲明一個Resources實例便於加載圖片
    private Resources res = this.getResources();
    // 聲明游戲需要用到的圖片資源(圖片聲明)
    private Bitmap bmpBackGround;// 游戲背景
    private Bitmap bmpBoom;// 爆炸效果
    private Bitmap bmpBoosBoom;// Boos爆炸效果
    private Bitmap bmpButton;// 游戲開始按鈕
    private Bitmap bmpButtonPress;// 游戲開始按鈕被點擊
    private Bitmap bmpEnemyDuck;// 怪物鴨子
    private Bitmap bmpEnemyFly;// 怪物蒼蠅
    private Bitmap bmpEnemyBoos;// 怪物豬頭Boos
    private Bitmap bmpGameWin;// 游戲勝利背景
    private Bitmap bmpGameLost;// 游戲失敗背景
    private Bitmap bmpPlayer;// 游戲主角飛機
    private Bitmap bmpPlayerHp;// 主角飛機血量
    private Bitmap bmpMenu;// 菜單背景
    public static Bitmap bmpBullet;// 子彈
    public static Bitmap bmpEnemyBullet;// 敵機子彈
    public static Bitmap bmpBossBullet;// Boss子彈
    public static int screenW;
    public static int screenH;

    //
    private GameMenu gameMenu;

    /**
     * SurfaceView初始化函數
     */
    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視圖創建，響應此函數
     */
    @Override
    public void surfaceCreated(SurfaceHolder holder) {
        screenW = this.getWidth();
        screenH = this.getHeight();
        initGame();
        flag = true;
        // 實例線程
        th = new Thread(this);
        // 啟動線程
        th.start();
    }

    /**
     * 加載游戲資源
     */
    private void initGame() {
        // 加載游戲資源
        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);

        //菜單類實例化
        gameMenu = new GameMenu(bmpMenu, bmpButton, bmpButtonPress);

    }

    /**
     * 游戲繪圖
     */
    public void myDraw() {
        try {
            canvas = sfh.lockCanvas();
            if (canvas != null) {
                canvas.drawColor(Color.WHITE);
                // 繪圖函數根據游戲狀態不同進行不同繪制

                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);
        }
    }

    /**
     * 觸屏事件監聽
     */
    @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;
    }

    /**
     * 按鍵事件監聽
     */
    @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);
    }

    /**
     * 游戲邏輯
     */
    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視圖狀態發生改變，響應此函數
     */
    @Override
    public void surfaceChanged(SurfaceHolder holder, int format, int width,
            int height) {
    }

    /**
     * SurfaceView視圖消亡時，響應此函數
     */
    @Override
    public void surfaceDestroyed(SurfaceHolder holder) {
        flag = false;
    }

}

效果圖