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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.
*
*/
#include "illusions/updatefunctions.h"
#include "illusions/time.h"
#include "common/algorithm.h"
#include "common/system.h"
namespace Illusions {
// UpdateFunctions
UpdateFunctions::UpdateFunctions() {
_lastTimerUpdateTime = 0;
}
UpdateFunctions::~UpdateFunctions() {
// Free update functions
for (UpdateFunctionListIterator it = _updateFunctions.begin(); it != _updateFunctions.end(); ++it) {
delete *it;
}
}
void UpdateFunctions::add(int priority, uint32 sceneId, UpdateFunctionCallback *callback) {
UpdateFunction *updateFunction = new UpdateFunction();
updateFunction->_priority = priority;
updateFunction->_sceneId = sceneId;
updateFunction->_callback = callback;
UpdateFunctionListIterator insertionPos = Common::find_if(_updateFunctions.begin(), _updateFunctions.end(),
FindInsertionPosition(priority));
_updateFunctions.insert(insertionPos, updateFunction);
}
void UpdateFunctions::update() {
// Avoid running updates multiple times in the current time slice
while (_lastTimerUpdateTime == getCurrentTime()) {
g_system->delayMillis(10); // CHECKME Timer resolution
}
_lastTimerUpdateTime = getCurrentTime();
UpdateFunctionListIterator it = _updateFunctions.begin();
while (it != _updateFunctions.end()) {
int r = (*it)->run();
switch (r) {
case kUFNext:
++it;
break;
case kUFTerminate:
delete *it;
it = _updateFunctions.erase(it);
break;
default:
break;
}
}
}
void UpdateFunctions::terminateByScene(uint32 sceneId) {
for (UpdateFunctionListIterator it = _updateFunctions.begin(); it != _updateFunctions.end(); ++it) {
if ((*it)->_sceneId == sceneId)
(*it)->terminate();
}
}
} // End of namespace Illusions
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