Android Open Source - DolphinOES Recurring Event

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The source code is released under:
Apache License
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Java Source Code

/*******************************************************************************
 * Copyright 2014 See AUTHORS file./*  ww  w. ja va  2s  .  c o  m*/
 * 
 * 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 com.sidereal.dolphinoes.behaviors.events;

import java.util.ArrayList;
import com.sidereal.dolphinoes.architecture.AbstractEvent;
import com.sidereal.dolphinoes.architecture.DolphinOES;
import com.sidereal.dolphinoes.architecture.GameBehavior;
import com.sidereal.dolphinoes.architecture.GameObject;

/** Schedule {@link AbstractEvent} objects to run repeatedly over a number of
 * seconds or times.
 * 
 * @author Claudiu Bele */
public class RecurringEvent extends GameBehavior
{

  // region fields

  private ArrayList<AbstractEvent> events;

  protected float overallTimer = 0, frequencyTimer = 0;

  // endregion fields

  // region constructors

  public RecurringEvent(GameObject obj)
  {

    super(obj);
    events = new ArrayList<AbstractEvent>();
  }

  // endregion costructors

  // region methods

  @Override
  public void update()
  {

    for (int i = 0; i < events.size(); i++)
    {
      events.get(i).run();
    }
  }

  /** Adds an event that will be ran at a certain frequency, until the end time
   * ends.
   * 
   * @param event
   *            An event that will run at a certain frequency
   * @param frequency
   *            How often (in seconds) the action will happen
   * @param endTime
   *            The seconds it will last, if set to -1, it will be permanent. */
  public void setEvent(final AbstractEvent event, final float frequency,
      final float endTime, final AbstractEvent endEvent)
  {

    events.add(new AbstractEvent()
    {
      private float freq = frequency, end = endTime, freqTimer = 0,
          endTimer = 0;
      private AbstractEvent eventToRun = event;

      @Override
      public void run(Object... params)
      {

        freqTimer += DolphinOES.time.getDeltaTime();
        endTimer += DolphinOES.time.getDeltaTime();

        // if end is -1, we want it to run all the time
        if (end != -1 && endTimer - end >= 0)
        {
          if (endEvent != null)
          {
            endEvent.run();
          }
          events.remove(events.indexOf(this));
        }
        if (freqTimer > freq)
        {
          eventToRun.run();
          freqTimer -= freq;
        }
      }
    });
  }

  public void setEvent(final AbstractEvent event, final float frequency,
      final int times, final AbstractEvent endEvent)
  {

    events.add(new AbstractEvent()
    {
      private float freq = frequency, end = times * frequency + 0.05f,
          freqTimer = 0, endTimer = 0;
      private AbstractEvent eventToRun = event;

      @Override
      public void run(Object... params)
      {

        freqTimer += DolphinOES.time.getDeltaTime();
        endTimer += DolphinOES.time.getDeltaTime();

        // if end is -1, we want it to run all the time
        if (end != -1 && endTimer - end >= 0 && times != -1)
        {
          if (endEvent != null)
          {
            endEvent.run();
          }
          events.remove(events.indexOf(this));
        }
        if (freqTimer > freq)
        {
          eventToRun.run();
          freqTimer -= freq;
        }
      }
    });
  }

  public ArrayList<AbstractEvent> getEvents()
  {

    return events;
  }

  public void setEvents(ArrayList<AbstractEvent> events)
  {

    this.events = events;
  }

  // endregion methods

}
Java Source Code List
