time.h

Go to the documentation of this file.

/*
 *  The Mana Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2012  The Mana Developers
 *
 *  This file is part of The Mana Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include <cstdint>
 
static constexpr unsigned MILLISECONDS_IN_A_TICK = 10;
 
namespace Time
{
 
uint32_t absoluteTimeMs();
 
unsigned deltaTimeMs();
 
float deltaTime();
 
void beginFrame();
 
} // namespace Time
 
class Timer
{
public:
    Timer() = default;
 
    void set(uint32_t ms = 0)
    { mTimeout = Time::absoluteTimeMs() + ms; }
 
    void reset()
    { mTimeout = 0; }
 
    bool isSet() const
    { return mTimeout != 0; }
 
    bool passed() const
    { return elapsed() >= 0; }
 
    void extend(uint32_t ms)
    { mTimeout += ms; }
 
    int32_t elapsed() const;
 
private:
    uint32_t mTimeout = 0;
};