Android Open Source - clash_of_balls Game Menu Base

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From Project

Back to project page clash_of_balls.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright (C) 2012-2013 Hans Hardmeier <hanshardmeier@gmail.com>
 * Copyright (C) 2012-2013 Andrin Jenal/*w  ww .  ja va2 s  . c  om*/
 * Copyright (C) 2012-2013 Beat Kng <beat-kueng@gmx.net>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3 of the License.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

package com.sapos_aplastados.game.clash_of_balls.menu;


import java.util.ArrayList;

import android.content.Context;
import android.util.Log;
import android.view.MotionEvent;

import com.sapos_aplastados.game.clash_of_balls.UIBase;
import com.sapos_aplastados.game.clash_of_balls.UIHandler;
import com.sapos_aplastados.game.clash_of_balls.UIHandler.UIChange;
import com.sapos_aplastados.game.clash_of_balls.game.RenderHelper;

/**
 * GameMenuBase
 * base class for a menu
 *
 */
public abstract class GameMenuBase implements UIBase {
  
  private static final String LOG_TAG = "GameMenuBase";
  
  protected ArrayList<MenuItem> m_menu_items = new ArrayList<MenuItem>();
  protected MenuBackground m_background;
  protected Context m_activity_context;
  
  protected UIHandler.UIChange m_ui_change;
  
  public GameMenuBase(MenuBackground background,Context context) {
    m_ui_change = UIChange.NO_CHANGE;
    m_background = background;
    m_activity_context=context;
  }

  public void onTouchEvent(float x, float y, int event) {
    for(int i=0; i<m_menu_items.size(); ++i) {
      MenuItem item = m_menu_items.get(i);
      if(item.isInside(x, y)) {
        if(event == MotionEvent.ACTION_DOWN) {
          Log.d(LOG_TAG, "Item pressed: Down event");
          item.onTouchDown(x, y);
          onTouchDown(item);
        } else if(event == MotionEvent.ACTION_UP) {
          Log.d(LOG_TAG, "Item pressed: Up event");
          item.onTouchUp(x, y);
          onTouchUp(item);
        }
      } else {
        if(event == MotionEvent.ACTION_UP) {
          //if touch Up is outside the item, it must be 
          //deselected here
          item.deselect();
        }
      }
    }
  }

  public void move(float dsec) {
    for(int i=0; i<m_menu_items.size(); ++i)
      m_menu_items.get(i).move(dsec);
    
    if(m_background != null) m_background.move(dsec);
  }

  public void draw(RenderHelper renderer) {
    if(m_background != null) m_background.draw(renderer);
    
    for(int i=0; i<m_menu_items.size(); ++i) 
      m_menu_items.get(i).draw(renderer);
  }
  
  //these methods are called whenever an item is touched
  //item.onTouch* is already called. these methods are for menu change events
  protected abstract void onTouchDown(MenuItem item);
  protected abstract void onTouchUp(MenuItem item);

  public UIHandler.UIChange UIChange() {
    UIHandler.UIChange ret = m_ui_change;
    m_ui_change = UIChange.NO_CHANGE;
    return ret;
  }
  
  public void onActivate() {
    // ignore it
  }

  public void onDeactivate() {
    m_ui_change = UIChange.NO_CHANGE;
  }
  
  public void onBackButtonPressed() {
    //default behaviour is go back to main menu
    m_ui_change = UIChange.MAIN_MENU;
  }

}

Java Source Code List

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