Package ca.eandb.jmist.framework.modifier

Source Code of ca.eandb.jmist.framework.modifier.TiledMask2

/**
* Java Modular Image Synthesis Toolkit (JMIST)
* Copyright (C) 2008-2014 Bradley W. Kimmel
*
* 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 ca.eandb.jmist.framework.modifier;

import ca.eandb.jmist.framework.Mask2;
import ca.eandb.jmist.math.Point2;

/**
* A decorator <code>Mask2</code> that tiles the decorated <code>Mask2</code>.
*/
public final class TiledMask2 implements Mask2 {

  /** Serialization version ID. */
  private static final long serialVersionUID = 2040730054854181920L;

  /** The <code>Mask2</code> to be tiled. */
  private final Mask2 inner;

  /**
   * Creates a new <code>TiledMask2</code>.
   * @param inner The <code>Mask2</code> to be tiled.
   */
  public TiledMask2(Mask2 inner) {
    this.inner = inner;
  }

  /* (non-Javadoc)
   * @see ca.eandb.jmist.framework.Mask2#opacity(ca.eandb.jmist.math.Point2)
   */
  @Override
  public double opacity(Point2 p) {
    p = new Point2(p.x() - Math.floor(p.x()), p.y() - Math.floor(p.y()));
    return inner.opacity(p);
  }

}
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