//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//=============================================================================//
#ifndef ICHOREOEVENTCALLBACK_H
#define ICHOREOEVENTCALLBACK_H
#ifdef _WIN32
#pragma once
#endif

class CChoreoEvent;
class CChoreoChannel;
class CChoreoActor;
class CChoreoScene;

//-----------------------------------------------------------------------------
// Purpose: During choreo playback, events are triggered by calling back from
//  the scene through this interface.
//-----------------------------------------------------------------------------
abstract_class IChoreoEventCallback {
   public:
    virtual void StartEvent(float currenttime, CChoreoScene *scene,
                            CChoreoEvent *event) = 0;
    // Only called for events with HasEndTime() == true
    virtual void EndEvent(float currenttime, CChoreoScene *scene,
                          CChoreoEvent *event) = 0;
    // Called for events which have been started but aren't done yet
    virtual void ProcessEvent(float currenttime, CChoreoScene *scene,
                              CChoreoEvent *event) = 0;
    // Called for events that are part of a pause condition
    virtual bool CheckEvent(float currenttime, CChoreoScene *scene,
                            CChoreoEvent *event) = 0;
};

#endif  // ICHOREOEVENTCALLBACK_H