AdjustmentLimiter.java

/**
  * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *   http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 */
package org.lostkingdomsfrontier.pfrpg;

/**
 * @author bebopjmm
 * 
 */
public class AdjustmentLimiter implements AdjustmentListener
{

   Adjustment parent;

   Adjustment limiter;


   public AdjustmentLimiter(Adjustment parent, short limit)
   {
      this.parent = parent;
      limiter = new Adjustment(parent.getCategory(), parent.getValue(), parent.getPedigree());
      parent.subscribe(this);
      limiter.setLimit(limit);
   }


   public Adjustment getLimitedAdjustment()
   {
      return limiter;
   }


   public void clear()
   {
      parent.unsubscribe(this);
      parent = null;
      limiter = null; // may need ensure all subscriptions are cleared.
   }


   @Override
   public void valueChanged(Adjustment adjustment)
   {
      limiter.setValue(adjustment.getValue());

   }
}