1 files changed, 20 insertions, 0 deletions
diff --git a/engines/kyra/timer.cpp b/engines/kyra/timer.cpp
index 2ab2b621f3..4722966cad 100644
--- a/engines/kyra/timer.cpp
+++ b/engines/kyra/timer.cpp
@@ -129,6 +129,26 @@ void TimerManager::update() {
 	}
 }
 
+void TimerManager::manualAdvance(uint32 millis) {
+	uint32 curTime = _system->getMillis();
+	for (Iterator pos = _timers.begin(); pos != _timers.end(); ++pos) {
+		if (pos->enabled == 1 && pos->countdown >= 0) {
+			pos->nextRun -= curTime;
+			while (pos->nextRun <= millis) {
+				if (pos->func && pos->func->isValid())
+					(*pos->func)(pos->id);
+
+				pos->lastUpdate = curTime;
+				pos->nextRun = pos->countdown * _vm->tickLength();
+				millis -= pos->nextRun;
+			}
+			pos->nextRun += curTime;
+			_nextRun = MIN(_nextRun, pos->nextRun);
+		}
+	}
+
+}
+
 void TimerManager::resync() {
 	const uint32 curTime = _isPaused ? _pauseStart : _system->getMillis();