Initial commit

engines/illusions/threads/timerthread.cpp

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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 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/>.
+ *
+ */
+
+#include "illusions/illusions.h"
+#include "illusions/threads/timerthread.h"
+#include "illusions/input.h"
+#include "illusions/time.h"
+
+namespace Illusions {
+
+// TimerThread
+
+TimerThread::TimerThread(IllusionsEngine *vm, uint32 threadId, uint32 callingThreadId, uint notifyFlags,
+	uint32 duration, bool isAbortable)
+	: Thread(vm, threadId, callingThreadId, notifyFlags), _duration(duration), _isAbortable(isAbortable) {
+	_type = kTTTimerThread;
+	_startTime = getCurrentTime();
+	_endTime = _startTime + _duration;
+
+	if (callingThreadId) {
+		Thread *callingThread = _vm->_threads->findThread(callingThreadId);
+		if (callingThread)
+			_sceneId = callingThread->_sceneId;
+	}
+
+}
+
+int TimerThread::onUpdate() {
+	if (isTimerExpired(_startTime, _endTime) ||
+		(_isAbortable && _vm->_input->pollEvent(kEventAbort)))
+		return kTSTerminate;
+	return kTSYield;
+}
+
+void TimerThread::onSuspend() {
+	onPause();
+}
+
+void TimerThread::onNotify() {
+	onUnpause();
+}
+
+void TimerThread::onPause() {
+	_durationElapsed = getDurationElapsed(_startTime, _endTime);
+}
+
+void TimerThread::onUnpause() {
+	uint32 currTime = getCurrentTime();
+	_startTime = currTime;
+	if (_duration <= _durationElapsed)
+		_endTime = currTime;
+	else
+		_endTime = currTime + _duration - _durationElapsed;
+	_durationElapsed = 0;
+}
+
+void TimerThread::onResume() {
+	onNotify();
+}
+
+} // End of namespace Illusions