SwipeGameActivity.java

/*
Copyright 2014 Google Inc. All rights reserved.

        Licensed under the Apache License, Version 2.0 (the "License");
        you may not use this file except in compliance with the License.
        You may obtain a copy of the License at

        http://www.apache.org/licenses/LICENSE-2.0

        Unless required by applicable law or agreed to in writing, software
        distributed under the License is distributed on an "AS IS" BASIS,
        WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
        See the License for the specific language governing permissions and
        limitations under the License.
*/
package fr.steren.cloudcup.games;

import android.content.Context;
import android.os.Bundle;
import android.os.Vibrator;
import android.util.Log;
import android.view.MotionEvent;

import fr.steren.cloudcup.GameActivity;
import fr.steren.cloudcup.R;

/**
 * Created by mirnabouchra on 11/21/14.
 */
public class SwipeGameActivity extends GameActivity {
    private static final String LOG_TAG = SwipeGameActivity.class.getSimpleName();

    private static final int MIN_THRESOLD =  300;
    private int x1, x2;
    private int y1, y2;
    private int swipeCount;
    public Vibrator vibrator;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        state = GameActivity.GameState.GAME;
        super.onCreate(savedInstanceState);
        setContentView(R.layout.swipe_game_activity);
        swipeCount = 0;
        vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
    }

    // onTouchEvent () method gets called when User performs any touch event on screen
    // Method to handle touch event like left to right swap and right to left swap
    public boolean onTouchEvent(MotionEvent touchevent) {
        switch (touchevent.getAction()) {
            // when user first touches the screen we get x and y coordinate
            case MotionEvent.ACTION_DOWN: {
                x1 = (int) touchevent.getX();
                y1 = (int) touchevent.getY();
                Log.d(LOG_TAG, "x1 " + x1);
                Log.d(LOG_TAG, "y1 " + y1);
                break;
            }
            case MotionEvent.ACTION_UP: {
                x2 = (int) touchevent.getX();
                y2 = (int) touchevent.getY();
                Log.d(LOG_TAG, "x2 " + x2);
                Log.d(LOG_TAG, "y2 " + y2);

                //if Down to UP sweep event on screen
                if (y1 > (y2 + MIN_THRESOLD)) {
                    swipeCount++;
                    Log.d(LOG_TAG, "swipe count: " + swipeCount);
                    gameDataRef.setValue(swipeCount);
                    vibrator.vibrate(100);
                }
                break;
            }
        }
        return false;
    }
}