Android Open Source - Avoidance Screen Resolution

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License

The source code is released under:

GNU General Public License

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Java Source Code

/* 
 * Copyright (c) 2012 Florian Minges/*from  w  w  w  .  j a va 2  s . c o  m*/
 * 
 * This file is part of Avoidance.
 * 
 * Avoidance 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Avoidance 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with Avoidance.  If not, see <http://www.gnu.org/licenses/>. 
 *  
 */

package se.chalmers.avoidance.util;

import org.andengine.entity.shape.RectangularShape;

/**
 * Abstract class that acts as a content provider for the screen resolution.
 * <p>
 * 
 * The resolution can only be initialized once, unless one extends this abstract
 * class and overrides some of the methods.
 * 
 * 
 * @author Florian Minges
 * 
 */
public abstract class ScreenResolution {

  private static final int CAMERA_WIDTH = 1280;
  private static final int CAMERA_HEIGHT = 800;

  /**
   * Returns the screens width.
   * <p>
   * 
   * @return the screens width
   */
  public static int getWidthResolution() {
    return CAMERA_WIDTH;
  }

  /**
   * Returns the screens height.
   * <p>
   * 
   * @return the screens height
   */
  public static int getHeightResolution() {
    return CAMERA_HEIGHT;
  }

  /**
   * Returns the x-position of the <code>RectangularShape</code> provided in
   * the argument, in case it would be centered horizontally (along the
   * x-axis).
   * 
   * @param shape
   *            a shape
   * @return the x-position of the shape if centered on the x-axis
   */
  public static float getXPosHorizontalCentering(RectangularShape shape) {
    return (ScreenResolution.getWidthResolution() - shape.getWidth()) / 2;
  }

  /**
   * Returns the y-position of the <code>RectangularShape</code> provided in
   * the argument, in case it would be centered vertically (along the y-axis).
   * 
   * @param shape
   *            a shape
   * @return the y-position of the shape if centered on the y-axis
   */
  public static float getYPosVerticalCentering(RectangularShape shape) {
    return (ScreenResolution.getHeightResolution() - shape.getHeight()) / 2;
  }
}

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