laTimeTrig.cpp

/*

Jump'n'Run Engine
http://www.atanaslaskov.com/jnr/

BSD LICENSE
Copyright (c) 2007-2013, Atanas Laskov
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ATANAS LASKOV BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

//
// FILE: laTimeTrig.cpp
//
// Time-triggered events
//
// Copyright (C) 2007-2013 Atanas Laskov, <latanas@gmail.com>
//
#include "stdafx.h"
#include "jnr.h"

laTimeTrig::laTimeTrig(void)
{
    _dElapse  = 1;
    _dHold    = 1;
    _bCyclic  = M_TRUE;

    _bEnabled = M_TRUE;

    _pEventHandler = NULL;
    _pEventObject = NULL;

    reset();
}

/*laTimeTrig::~laTimeTrig(void)
{
}*/

// "Animate" the time triggered event; This method must be called on every frame,
// when the time-trigger needs to be active
//
void laTimeTrig::animate(laTimer &t)
{
    //Do nothing if disalbed
    if(!_bEnabled) return;

    //Do nothing if fired and not cyclic
    if( (!_bCyclic) && (_bFired) ) return;

    //Elapse event
    //
    if(_nTimeLeft<t.delta())
    {
        if(_bEvent)
        {
            // The event flag is set, so we were counting down from the Hold interval;
            // Unset the flag and use the Elapse interval.
            //
            _bEvent = M_FALSE;
            _nTimeLeft = _dElapse;
            //_bFired = M_TRUE;
        }
        else
        {
            // The event flag is set, so we were counting down from the Elapse interval;
            // Unset the flag and use the Hold interval.
            //
            _bEvent = M_TRUE;
            _nTimeLeft = _dHold;
            _bFired = M_TRUE;

            //Call the event handler function
            if(_pEventHandler) _pEventHandler(_pEventObject);
        }
        return;
    }

    //Increment the time counter
    _nTimeLeft -= t.delta();
}