text: /********************************************************************************
  * ReactPhysics3D physics library, http://www.reactphysics3d.com                 *
  * Copyright (c) 2010-2022 Daniel Chappuis                                       *
  *********************************************************************************
  *                                                                               *
  * This software is provided 'as-is', without any express or implied warranty.   *
  * In no event will the authors be held liable for any damages arising from the  *
  * use of this software.                                                         *
  *                                                                               *
  * Permission is granted to anyone to use this software for any purpose,         *
  * including commercial applications, and to alter it and redistribute it        *
  * freely, subject to the following restrictions:                                *
  *                                                                               *
  * 1. The origin of this software must not be misrepresented; you must not claim *
  *    that you wrote the original software. If you use this software in a        *
  *    product, an acknowledgment in the product documentation would be           *
  *    appreciated but is not required.                                           *
  *                                                                               *
  * 2. Altered source versions must be plainly marked as such, and must not be    *
  *    misrepresented as being the original software.                             *
  *                                                                               *
  * 3. This notice may not be removed or altered from any source distribution.    *
  *                                                                               *
  ********************************************************************************/
  
  #ifndef REACTPHYSICS3D_EVENT_LISTENER_H
  #define REACTPHYSICS3D_EVENT_LISTENER_H
  
  // Libraries
  #include <reactphysics3d/collision/CollisionCallback.h>
  #include <reactphysics3d/collision/OverlapCallback.h>
  
  namespace reactphysics3d {
  
  // Class EventListener
  /**
   * This class can be used to receive notifications about events that occur during the simulation.
   * In order to receive callbacks, you need to create a new class that inherits from
   * this one and you must override the methods that you need. Then, you will need to register your
   * new event listener class to the physics world using the PhysicsWorld::setEventListener() method.
   */
  class EventListener : public CollisionCallback {
  
      public :
  
          // ---------- Methods ---------- //
  
          /// Constructor
          EventListener() = default;
  
          /// Destructor
          virtual ~EventListener() override = default;
  
          /// Called when some contacts occur
          /**
           * @param callbackData Contains information about all the contacts
           */
          virtual void onContact(const CollisionCallback::CallbackData& /*callbackData*/) override {}
  
          /// Called when some trigger events occur
          /**
           * @param callbackData Contains information about all the triggers that are colliding
           */
          virtual void onTrigger(const OverlapCallback::CallbackData& /*callbackData*/) {}
  };
  
  }
  
  #endif
  