SUPERNOVA: Adds getDOSTicks()

2 files changed, 11 insertions, 0 deletions

diff --git a/engines/supernova/supernova.cpp b/engines/supernova/supernova.cpp
index bcc2347c30..b3c0adb8a0 100644
--- a/engines/supernova/supernova.cpp
+++ b/engines/supernova/supernova.cpp
@@ -119,6 +119,16 @@ Common::Error SupernovaEngine::run() {
 	return Common::kNoError;
 }
 
+// Emulates DOS int 1A/00
+uint SupernovaEngine::getDOSTicks() {
+	TimeDate systemTime;
+	_system->getTimeAndDate(systemTime);
+
+	return static_cast<uint>((systemTime.tm_hour * 24 +
+	                          systemTime.tm_min  * 60 +
+	                          systemTime.tm_sec) * 18.2065);
+}
+
 void SupernovaEngine::updateEvents() {
 	Common::Event event;
 
diff --git a/engines/supernova/supernova.h b/engines/supernova/supernova.h
index f97cd401e9..9370e900b4 100644
--- a/engines/supernova/supernova.h
+++ b/engines/supernova/supernova.h
@@ -85,6 +85,7 @@ private:
 	byte _brightness;
 	uint _delay;
 
+	uint getDOSTicks();
 	void initData();
 	void initPalette();
 	void paletteFadeIn();