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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "kyra/kyra.h"
#include "kyra/timer.h"
#include "common/func.h"
#include "common/savefile.h"
namespace Kyra {
namespace {
struct TimerResync : public Common::UnaryFunction<TimerEntry&, void> {
uint32 _tickLength, _curTime;
TimerResync(KyraEngine *vm, uint32 curTime) : _tickLength(vm->tickLength()), _curTime(curTime) {}
void operator()(TimerEntry &entry) const {
if (entry.lastUpdate < 0) {
if ((entry.lastUpdate + _curTime) <= 0)
entry.nextRun = 0;
else
entry.nextRun = _curTime + entry.lastUpdate + entry.countdown * _tickLength;
} else {
uint32 nextRun = entry.lastUpdate + entry.countdown * _tickLength;
if (_curTime < nextRun)
nextRun = 0;
entry.nextRun = nextRun;
}
}
};
struct TimerEqual : public Common::UnaryFunction<const TimerEntry&, bool> {
uint8 _id;
TimerEqual(uint8 id) : _id(id) {}
bool operator()(const TimerEntry &entry) const {
return entry.id == _id;
}
};
} // end of anonymous namespace
void TimerManager::reset() {
for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
delete pos->func;
}
_timers.clear();
}
void TimerManager::addTimer(uint8 id, TimerFunc *func, int countdown, bool enabled) {
debugC(9, kDebugLevelTimer, "TimerManager::addTimer(%d, %p, %d, %d)", id, (const void*)func, countdown, enabled);
TimerEntry newTimer;
newTimer.id = id;
newTimer.countdown = countdown;
newTimer.enabled = enabled ? 1 : 0;
newTimer.lastUpdate = newTimer.nextRun = 0;
newTimer.func = func;
_timers.push_back(newTimer);
}
void TimerManager::update() {
debugC(9, kDebugLevelTimer, "TimerManager::update()");
if (_system->getMillis() < _nextRun)
return;
_nextRun += 99999;
for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
if (pos->enabled && pos->countdown >= 0 && pos->nextRun <= _system->getMillis()) {
if (pos->func && *pos->func)
(*pos->func)(pos->id);
uint32 curTime = _system->getMillis();
pos->lastUpdate = curTime;
pos->nextRun = curTime + pos->countdown * _vm->tickLength();
_nextRun = MIN(_nextRun, pos->nextRun);
}
}
}
void TimerManager::resync() {
debugC(9, kDebugLevelTimer, "TimerManager::resync()");
_nextRun = 0; // force rerun
Common::for_each(_timers.begin(), _timers.end(), TimerResync(_vm, _system->getMillis()));
}
void TimerManager::resetNextRun() {
debugC(9, kDebugLevelTimer, "TimerManager::resetNextRun()");
_nextRun = 0;
}
void TimerManager::setCountdown(uint8 id, int32 countdown) {
debugC(9, kDebugLevelTimer, "TimerManager::setCountdown(%d, %d)", id, countdown);
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end()) {
timer->countdown = countdown;
if (countdown >= 0) {
uint32 curTime = _system->getMillis();
timer->lastUpdate = curTime;
timer->nextRun = curTime + countdown * _vm->tickLength();
_nextRun = MIN(_nextRun, timer->nextRun);
}
} else {
warning("TimerManager::setCountdown: No timer %d", id);
}
}
void TimerManager::setDelay(uint8 id, int32 countdown) {
debugC(9, kDebugLevelTimer, "TimerManager::setDelay(%d, %d)", id, countdown);
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end())
timer->countdown = countdown;
else
warning("TimerManager::setDelay: No timer %d", id);
}
int32 TimerManager::getDelay(uint8 id) const {
debugC(9, kDebugLevelTimer, "TimerManager::getDelay(%d)", id);
CIterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end())
return timer->countdown;
warning("TimerManager::getDelay: No timer %d", id);
return -1;
}
bool TimerManager::isEnabled(uint8 id) const {
debugC(9, kDebugLevelTimer, "TimerManager::isEnabled(%d)", id);
CIterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end())
return (timer->enabled == 1);
warning("TimerManager::isEnabled: No timer %d", id);
return false;
}
void TimerManager::enable(uint8 id) {
debugC(9, kDebugLevelTimer, "TimerManager::enable(%d)", id);
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end())
timer->enabled = 1;
else
warning("TimerManager::enable: No timer %d", id);
}
void TimerManager::disable(uint8 id) {
debugC(9, kDebugLevelTimer, "TimerManager::disable(%d)", id);
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end())
timer->enabled = 0;
else
warning("TimerManager::disable: No timer %d", id);
}
void TimerManager::loadDataFromFile(Common::InSaveFile *file, int version) {
debugC(9, kDebugLevelTimer, "TimerManager::loadDataFromFile(%p, %d)", (const void*)file, version);
if (version <= 7) {
_nextRun = 0;
for (int i = 0; i < 32; ++i) {
uint8 enabled = file->readByte();
int32 countdown = file->readSint32BE();
uint32 nextRun = file->readUint32BE();
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(i));
if (timer != _timers.end()) {
timer->enabled = enabled;
timer->countdown = countdown;
if (nextRun) {
timer->nextRun = nextRun + _system->getMillis();
timer->lastUpdate = timer->nextRun - countdown * _vm->tickLength();
} else {
uint32 curTime = _system->getMillis();
timer->nextRun = curTime;
timer->lastUpdate = curTime - countdown * _vm->tickLength();
}
} else {
warning("Loading timer data for non existing timer %d", i);
}
}
} else {
int entries = file->readByte();
for (int i = 0; i < entries; ++i) {
uint8 id = file->readByte();
Iterator timer = Common::find_if(_timers.begin(), _timers.end(), TimerEqual(id));
if (timer != _timers.end()) {
timer->enabled = file->readByte();
timer->countdown = file->readSint32BE();
timer->lastUpdate = file->readSint32BE();
} else {
warning("Loading timer data for non existing timer %d", id);
file->seek(7, SEEK_CUR);
}
}
resync();
}
}
void TimerManager::saveDataToFile(Common::OutSaveFile *file) const {
debugC(9, kDebugLevelTimer, "TimerManager::saveDataToFile(%p)", (const void*)file);
file->writeByte(count());
for (CIterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
file->writeByte(pos->id);
file->writeByte(pos->enabled);
file->writeSint32BE(pos->countdown);
file->writeSint32BE(pos->lastUpdate - _system->getMillis());
}
}
} // end of namespace Kyra
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