text: /*
   * Copyright (c) 2010-2014 OTClient <https://github.com/edubart/otclient>
   *
   * 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.
   */
  
  #ifndef SHOUNDCHANNEL_H
  #define SHOUNDCHANNEL_H
  
  #include "soundsource.h"
  
  // @bindclass
  class SoundChannel : public LuaObject
  {
  public:
      SoundChannel(int id) : m_id(id), m_gain(1) { }
  
      SoundSourcePtr play(const std::string& filename, float fadetime = 0, float gain = 1.0f);
      void stop(float fadetime = 0);
      void enqueue(const std::string& filename, float fadetime = 0, float gain = 1.0f);
      void enable() { setEnabled(true); }
      void disable() { setEnabled(false); }
  
      void setGain(float gain);
      float getGain() { return m_gain; }
  
      void setEnabled(bool enable);
      bool isEnabled() { return m_enabled; }
  
      int getId() { return m_id; }
  
  protected:
      void update();
      friend class SoundManager;
  
  private:
      struct QueueEntry {
          std::string filename;
          float fadetime;
          float gain;
      };
      std::deque<QueueEntry> m_queue;
      SoundSourcePtr m_currentSource;
      stdext::boolean<true> m_enabled;
      int m_id;
      float m_gain;
  };
  
  #endif
  