Android Open Source - WordZap Timer

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License

The source code is released under:

Copyright (c) 2010 Kowshik Prakasam Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal ...

Java Source Code

/**
 * /*  w  ww  . j a va2 s  . c  om*/
 * The MIT License : http://www.opensource.org/licenses/mit-license.php

 * Copyright (c) 2010 Kowshik Prakasam

 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

package com.android.wordzap;

import android.content.res.Resources.Theme;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

/*
 * This class checks if human player has made a move once in every WordZapConstants.HUMAN_SLEEP_CHECK milliseconds. 
 * If there is no response, then this thread sends a termination message to the
 * parent thread : com.android.wordzap.GameScreen, indicating that the human player has lost the game.
 */
public class Timer implements Runnable {

  // Handler object to communicate opponent moves to Activity GameScreen
  // This object is created in Activity com.android.wordzap.GameScreen
  private final Handler mainThreadHandler;

  // The last word formed by the human player
  private String lastWord;

  // Handle to the Activity object representing the WordZap Game Screen
  private final GameScreen wordZapGameScreen;

  public Timer(GameScreen wordZapGameScreen, Handler mainThreadHandler)
      throws NullPointerException {

    if (wordZapGameScreen == null) {
      throw new IllegalArgumentException("GameScreen object is null.");
    }
    this.wordZapGameScreen = wordZapGameScreen;

    if (mainThreadHandler == null) {
      throw new IllegalArgumentException("Main Thread Handler is null.");
    }
    this.mainThreadHandler = mainThreadHandler;

    this.lastWord = "";
  }

  public void run() {

    while (true) {
      try {

        Log.i("Timer", "Gonna sleep for : "
            + (WordZapConstants.HUMAN_SLEEP_CHECK / 1000) + "s");

        /********
         * Sleep until interrupted by method
         * com.android.wordzap.GameScreen.endWord()
         *****************/
        Thread.sleep(WordZapConstants.HUMAN_SLEEP_CHECK);
        /************************************************/

        Log.i("Timer", "Woke up");

        // Check again if game was already over during sleep time
        if (this.wordZapGameScreen.isGameOver()) {
          Log.i("Timer", "Dying");
          return;
        }

        Bundle aBundle = new Bundle();
        int time;
        
        /**
         * Run the timer in the Game Screen UI until : The game is over
         * due to no response from human player (OR) Human player
         * interrupts by forming a valid word
         */
        for (time = WordZapConstants.HUMAN_SLEEP_CHECK; time >= 0
            && this.lastWord.equals(this.wordZapGameScreen
                .getLastWord())
            && !wordZapGameScreen.isGameOver(); time -= 1000) {

          /*
           * Clear bundle and populate with timer value to be
           * displayed in com.android.wordzap.GameScreen UI
           */
          aBundle.clear();
          aBundle.putInt(WordZapConstants.TIMER_VALUE_KEYNAME,
              time / 1000);
          aBundle.putInt(WordZapConstants.GAME_STATUS, WordZapConstants.NONE);

          // Obtain message to be sent
          Message msg = mainThreadHandler.obtainMessage();
          msg.setData(aBundle);
          mainThreadHandler.sendMessage(msg);

          /*****************************/
          Thread.sleep(1000);
          /*****************************/

        }

        /*
         * Oops, game is over because human player failed to respond
         * with a valid word
         */
        if (time < 0) {
          if(wordZapGameScreen.getCompletedWords().size() > wordZapGameScreen.getOpponentGridSize() ){
            aBundle.putInt(WordZapConstants.GAME_STATUS, WordZapConstants.HUMAN_WIN);
          }else if(wordZapGameScreen.getCompletedWords().size() < wordZapGameScreen.getOpponentGridSize() ){
            aBundle.putInt(WordZapConstants.GAME_STATUS, WordZapConstants.HUMAN_LOSS);
          }else{
            aBundle.putInt(WordZapConstants.GAME_STATUS, WordZapConstants.DRAW);
          }
          Message msg = mainThreadHandler.obtainMessage();
          msg.setData(aBundle);
          mainThreadHandler.sendMessage(msg);
        }

      } catch (InterruptedException e) {
        Log.i("Timer", "Interrupted");
        // Don't care as timer is just reset by human player
      }

      // Remember the last word no matter what interrupts occur
      finally {
        this.lastWord = this.wordZapGameScreen.getLastWord();
      }
    }

  }
}

Java Source Code List

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