mirror of
https://github.com/libretro/scummvm.git
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314 lines
8.8 KiB
C++
314 lines
8.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "kyra/kyra_v1.h"
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#include "kyra/timer.h"
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#include "common/func.h"
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#include "common/stream.h"
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namespace Kyra {
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namespace {
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struct TimerResync : public Common::UnaryFunction<TimerEntry&, void> {
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uint32 _tickLength, _curTime;
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TimerResync(KyraEngine_v1 *vm, uint32 curTime) : _tickLength(vm->tickLength()), _curTime(curTime) {}
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void operator()(TimerEntry &entry) const {
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if (entry.lastUpdate < 0) {
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if ((uint32)(ABS(entry.lastUpdate)) >= entry.countdown * _tickLength)
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entry.nextRun = 0;
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else
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entry.nextRun = _curTime + entry.lastUpdate + entry.countdown * _tickLength;
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} else {
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uint32 nextRun = entry.lastUpdate + entry.countdown * _tickLength;
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if (_curTime < nextRun)
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nextRun = 0;
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entry.nextRun = nextRun;
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}
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}
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};
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struct TimerEqual : public Common::UnaryFunction<const TimerEntry&, bool> {
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uint8 _id;
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TimerEqual(uint8 id) : _id(id) {}
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bool operator()(const TimerEntry &entry) const {
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return entry.id == _id;
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}
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};
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} // end of anonymous namespace
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void TimerManager::pause(bool p) {
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if (p) {
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++_isPaused;
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if (_isPaused == 1) {
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_isPaused = true;
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_pauseStart = _system->getMillis();
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}
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} else if (!p && _isPaused > 0) {
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--_isPaused;
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if (_isPaused == 0) {
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const uint32 pausedTime = _system->getMillis() - _pauseStart;
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_nextRun += pausedTime;
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for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
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pos->lastUpdate += pausedTime;
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pos->nextRun += pausedTime;
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}
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}
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}
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}
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void TimerManager::reset() {
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for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos)
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delete pos->func;
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_timers.clear();
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}
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void TimerManager::addTimer(uint8 id, TimerFunc *func, int countdown, bool enabled) {
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debugC(9, kDebugLevelTimer, "TimerManager::addTimer(%d, %p, %d, %d)", id, (const void*)func, countdown, enabled);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end()) {
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warning("Adding allready existing timer %d", id);
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return;
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}
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TimerEntry newTimer;
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newTimer.id = id;
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newTimer.countdown = countdown;
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newTimer.enabled = enabled ? 1 : 0;
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newTimer.lastUpdate = newTimer.nextRun = 0;
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newTimer.func = func;
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_timers.push_back(newTimer);
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}
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void TimerManager::update() {
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debugC(9, kDebugLevelTimer, "TimerManager::update()");
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if (_system->getMillis() < _nextRun || _isPaused)
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return;
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_nextRun += 99999;
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for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
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if (pos->enabled)
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if (pos->enabled && pos->countdown >= 0) {
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if (pos->nextRun <= _system->getMillis()) {
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if (pos->func && pos->func->isValid()) {
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(*pos->func)(pos->id);
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}
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uint32 curTime = _system->getMillis();
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pos->lastUpdate = curTime;
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pos->nextRun = curTime + pos->countdown * _vm->tickLength();
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}
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_nextRun = MIN(_nextRun, pos->nextRun);
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}
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}
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}
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void TimerManager::resync() {
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debugC(9, kDebugLevelTimer, "TimerManager::resync()");
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const uint32 curTime = _isPaused ? _pauseStart : _system->getMillis();
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_nextRun = 0; // force rerun
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Common::for_each(_timers.begin(), _timers.end(), TimerResync(_vm, curTime));
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}
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void TimerManager::resetNextRun() {
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debugC(9, kDebugLevelTimer, "TimerManager::resetNextRun()");
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_nextRun = 0;
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}
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void TimerManager::setCountdown(uint8 id, int32 countdown) {
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debugC(9, kDebugLevelTimer, "TimerManager::setCountdown(%d, %d)", id, countdown);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end()) {
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timer->countdown = countdown;
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if (countdown >= 0) {
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uint32 curTime = _system->getMillis();
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timer->lastUpdate = curTime;
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timer->nextRun = curTime + countdown * _vm->tickLength();
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_nextRun = MIN(_nextRun, timer->nextRun);
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}
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} else {
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warning("TimerManager::setCountdown: No timer %d", id);
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}
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}
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void TimerManager::setDelay(uint8 id, int32 countdown) {
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debugC(9, kDebugLevelTimer, "TimerManager::setDelay(%d, %d)", id, countdown);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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timer->countdown = countdown;
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else
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warning("TimerManager::setDelay: No timer %d", id);
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}
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int32 TimerManager::getDelay(uint8 id) const {
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debugC(9, kDebugLevelTimer, "TimerManager::getDelay(%d)", id);
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CIterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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return timer->countdown;
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warning("TimerManager::getDelay: No timer %d", id);
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return -1;
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}
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void TimerManager::setNextRun(uint8 id, uint32 nextRun) {
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debugC(9, kDebugLevelTimer, "TimerManager::setNextRun(%d, %u)", id, nextRun);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end()) {
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timer->nextRun = nextRun;
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return;
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}
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warning("TimerManager::setNextRun: No timer %d", id);
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}
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uint32 TimerManager::getNextRun(uint8 id) const {
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debugC(9, kDebugLevelTimer, "TimerManager::getNextRun(%d)", id);
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CIterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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return timer->nextRun;
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warning("TimerManager::getNextRun: No timer %d", id);
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return 0xFFFFFFFF;
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}
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bool TimerManager::isEnabled(uint8 id) const {
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debugC(9, kDebugLevelTimer, "TimerManager::isEnabled(%d)", id);
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CIterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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return (timer->enabled == 1);
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warning("TimerManager::isEnabled: No timer %d", id);
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return false;
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}
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void TimerManager::enable(uint8 id) {
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debugC(9, kDebugLevelTimer, "TimerManager::enable(%d)", id);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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timer->enabled = 1;
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else
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warning("TimerManager::enable: No timer %d", id);
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}
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void TimerManager::disable(uint8 id) {
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debugC(9, kDebugLevelTimer, "TimerManager::disable(%d)", id);
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end())
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timer->enabled = 0;
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else
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warning("TimerManager::disable: No timer %d", id);
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}
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void TimerManager::loadDataFromFile(Common::SeekableReadStream &file, int version) {
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debugC(9, kDebugLevelTimer, "TimerManager::loadDataFromFile(%p, %d)", (const void *)&file, version);
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const uint32 loadTime = _isPaused ? _pauseStart : _system->getMillis();
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if (version <= 7) {
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_nextRun = 0;
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for (int i = 0; i < 32; ++i) {
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uint8 enabled = file.readByte();
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int32 countdown = file.readSint32BE();
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uint32 nextRun = file.readUint32BE();
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(i));
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if (timer != _timers.end()) {
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timer->enabled = enabled;
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timer->countdown = countdown;
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if (nextRun) {
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timer->nextRun = nextRun + loadTime;
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timer->lastUpdate = timer->nextRun - countdown * _vm->tickLength();
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} else {
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timer->nextRun = loadTime;
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timer->lastUpdate = loadTime - countdown * _vm->tickLength();
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}
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} else {
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warning("Loading timer data for non existing timer %d", i);
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}
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}
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} else {
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int entries = file.readByte();
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for (int i = 0; i < entries; ++i) {
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uint8 id = file.readByte();
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Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
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if (timer != _timers.end()) {
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timer->enabled = file.readByte();
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timer->countdown = file.readSint32BE();
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timer->lastUpdate = file.readSint32BE();
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} else {
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warning("Loading timer data for non existing timer %d", id);
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file.seek(7, SEEK_CUR);
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}
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}
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resync();
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}
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}
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void TimerManager::saveDataToFile(Common::WriteStream &file) const {
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debugC(9, kDebugLevelTimer, "TimerManager::saveDataToFile(%p)", (const void *)&file);
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const uint32 saveTime = _isPaused ? _pauseStart : _system->getMillis();
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file.writeByte(count());
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for (CIterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
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file.writeByte(pos->id);
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file.writeByte(pos->enabled);
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file.writeSint32BE(pos->countdown);
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file.writeSint32BE(pos->lastUpdate - saveTime);
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}
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}
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} // end of namespace Kyra
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