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author | johndoe123 | 2014-03-11 12:10:31 +0100 |
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committer | Eugene Sandulenko | 2018-07-20 06:43:33 +0000 |
commit | bf09487df06e86923d6a4fe9765e9bd6d013e9d4 (patch) | |
tree | 9fe57db0033dd0e23072bb97e9861f1ee1fbce5a /engines/illusions/updatefunctions.cpp | |
parent | a06895ad594c7dd8b56bbb96993fa7af4b4e2d59 (diff) | |
download | scummvm-rg350-bf09487df06e86923d6a4fe9765e9bd6d013e9d4.tar.gz scummvm-rg350-bf09487df06e86923d6a4fe9765e9bd6d013e9d4.tar.bz2 scummvm-rg350-bf09487df06e86923d6a4fe9765e9bd6d013e9d4.zip |
ILLUSIONS: Add UpdateFunctions class
Diffstat (limited to 'engines/illusions/updatefunctions.cpp')
-rw-r--r-- | engines/illusions/updatefunctions.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/engines/illusions/updatefunctions.cpp b/engines/illusions/updatefunctions.cpp new file mode 100644 index 0000000000..9eb626c5ba --- /dev/null +++ b/engines/illusions/updatefunctions.cpp @@ -0,0 +1,80 @@ +/* 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 "common/algorithm.h" +#include "common/system.h" + +namespace Illusions { + +uint32 getCurrentTime() { + // TODO, move to own file with other time related code + return g_system->getMillis(); +} + +// UpdateFunctions + +UpdateFunctions::UpdateFunctions() { +} + +UpdateFunctions::~UpdateFunctions() { + // Free update functions + for (UpdateFunctionListIterator it = _updateFunctions.begin(); it != _updateFunctions.end(); ++it) + delete *it; +} + +void UpdateFunctions::add(int priority, uint32 tag, UpdateFunctionCallback *callback) { + UpdateFunction *updateFunction = new UpdateFunction(); + updateFunction->_priority = priority; + updateFunction->_tag = tag; + 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; + } + } + +} + +} // End of namespace Illusions |