scummvm/engines/crab/timer.cpp

124 lines
2.9 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 of the License, or
* (at your option) 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/>.
*
*/
/*
* This code is based on the CRAB engine
*
* Copyright (c) Arvind Raja Yadav
*
* Licensed under MIT
*
*/
//=============================================================================
// Author: Arvind
// Purpose: Timer functions
//=============================================================================
#include "common/system.h"
#include "crab/loaders.h"
#include "crab/timer.h"
namespace Crab {
Timer::Timer() {
// Initialize the variables
_startTicks = 0;
_pausedTicks = 0;
_targetTicks = 0;
_targetValid = false;
_paused = false;
_started = false;
}
void Timer::load(rapidxml::xml_node<char> *node, const Common::String &name, const bool &echo) {
_targetValid = loadNum(_targetTicks, name, node, echo);
}
void Timer::start() {
// Start the timer
_started = true;
// Resume the timer
_paused = false;
// Get the current clock time
_startTicks = g_system->getMillis();
}
void Timer::stop() {
// Stop the timer
_started = false;
// Resume the timer
_paused = false;
}
uint32 Timer::ticks() {
// If the timer is running
if (_started == true) {
// If the timer is paused
if (_paused == true) {
// Return the number of ticks when the timer was paused
return _pausedTicks;
} else {
// Return the current time minus the start time
return g_system->getMillis() - _startTicks;
}
}
// If the timer isn't running
return 0;
}
void Timer::pause() {
// If the timer is running and isn't already paused
if ((_started == true) && (_paused == false)) {
// Pause the timer
_paused = true;
// Calculate the paused ticks
_pausedTicks = g_system->getMillis() - _startTicks;
}
}
void Timer::resume() {
// If the timer is paused
if (_paused == true) {
// Resume the timer
_paused = false;
// Reset the starting ticks
_startTicks = g_system->getMillis() - _pausedTicks;
// Reset the paused ticks
_pausedTicks = 0;
}
}
bool Timer::targetReached(const float &factor) {
if (!_started)
start();
if (_targetValid && ticks() >= (_targetTicks / factor))
return true;
return false;
}
} // End of namespace Crab