Android Open Source - maze-android Hole

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 *  Maze-Android//from w  w w.j  a v a  2  s  .c  om
 *  Copyright 2009, 2010, 2011, 2012 Marco Mandrioli
 *
 *  This file is part of Maze-Android.
 *
 *  Maze-Android 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.
 *
 *  Maze-Android 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 Maze-Android.  If not, see <http://www.gnu.org/licenses/>.
 *
 */


package it.zavo.maze.maze;

import it.zavo.maze.graphics.shape.Circle;

import javax.microedition.khronos.opengles.GL10;

/**
 * Represents an hole of the maze.
 * 
 * @author Marco Mandrioli
 */
public class Hole {
  private float[] position;
  private float radius;
  private float[] color;
  private boolean isGoal;

  /**
   * Constructs an hole (or the goal) with a specified radius at the specified
   * coordinates.
   * 
   * @param scale
   *            the size of the maze containing the ball.
   * @param x
   *            the x coordinate of the center of the hole.
   * @param y
   *            the x coordinate of the center of the hole.
   * @param radius
   *            the radius of the hole.
   * @param isGoal
   *            tells whether this is a common hole or the goal.
   */
  public Hole(float scale, float x, float y, float radius, boolean isGoal) {
    // size is mapped to (-1, 1), so everything is multiplied by 2
    position = new float[] { ((x * 2) / scale) - 1, (y * 2) / scale - 1 };
    this.radius = ((radius * 2) / scale);

    this.isGoal = isGoal;

    if (isGoal)
      color = new float[] { 1.0f, 1.0f, 1.0f, 1.0f };
    else
      color = new float[] { 0.0f, 0.0f, 0.0f, 1.0f };
  }

  /**
   * Draws the hole.
   * 
   * @param gl
   *            the GL object.
   */
  public void draw(GL10 gl) {
    // draws the hole as a simple circle
    Circle.getSingleton().draw(gl, position[0], position[1], radius, color[0], color[1],
        color[2], color[3]);
  }

  /**
   * Returns the coordinates of the hole.
   * 
   * @return an array of two floats (x, y).
   */
  public float[] getPosition() {
    return position.clone();
  }

  /**
   * Returns the radius of the hole.
   * 
   * @return the radius of the hole.
   */
  public float getRadius() {
    return radius;
  }

  /**
   * Tells if the hole is the goal.
   * 
   * @return <code>true</code> if the hole is the goal, <code>false</code>
   *         otherwise.
   */
  public boolean isGoal() {
    return isGoal;
  }
}

Java Source Code List

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