1 files changed, 35 insertions, 12 deletions

diff --git a/engines/mohawk/riven_external.cpp b/engines/mohawk/riven_external.cpp
index 8b1ff45a66..184761318f 100644
--- a/engines/mohawk/riven_external.cpp
+++ b/engines/mohawk/riven_external.cpp
@@ -213,16 +213,39 @@ void RivenExternal::runEndGame(uint16 video) {
 	_vm->_gameOver = true;
 }
 
+void RivenExternal::runDomeButtonMovie() {
+	// This command just plays the video of the button moving down and up.
+	_vm->_video->playMovieBlocking(2);
+}
+
+void RivenExternal::runDomeCheck() {
+	// Check if we clicked while the golden frame was showing
+
+	VideoHandle video = _vm->_video->findVideoHandle(1);
+	assert(video != NULL_VID_HANDLE);
+
+	int32 curFrame = _vm->_video->getCurFrame(video);
+	int32 frameCount = _vm->_video->getFrameCount(video);
+
+	// The final frame of the video is the 'golden' frame (double meaning: the
+	// frame that is the magic one is the one with the golden symbol) but we
+	// give a 3 frame leeway in either direction.
+	if (frameCount - curFrame < 3 || curFrame < 3)
+		*_vm->matchVarToString("domecheck") = 1;
+}
+
 // ------------------------------------------------------------------------------------
 // aspit (Main Menu, Books, Setup) external commands
 // ------------------------------------------------------------------------------------
 
 void RivenExternal::xastartupbtnhide(uint16 argc, uint16 *argv) {
-	// The original game hides the start/setup buttons depending on an ini entry. It's safe to ignore this command.
+	// The original game hides the start/setup buttons depending on an ini entry.
+	// It's safe to ignore this command.
 }
 
 void RivenExternal::xasetupcomplete(uint16 argc, uint16 *argv) {
-	// The original game sets an ini entry to disable the setup button and use the start button only. It's safe to ignore this part of the command.
+	// The original game sets an ini entry to disable the setup button and use the
+	// start button only. It's safe to ignore this part of the command.
 	_vm->_sound->stopSound();
 	_vm->changeToCard(1);
 }
@@ -627,11 +650,11 @@ void RivenExternal::xbisland190_slidermw(uint16 argc, uint16 *argv) {
 }
 
 void RivenExternal::xbscpbtn(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeButtonMovie();
 }
 
 void RivenExternal::xbisland_domecheck(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeCheck();
 }
 
 void RivenExternal::xvalvecontrol(uint16 argc, uint16 *argv) {
@@ -723,11 +746,11 @@ void RivenExternal::xgisland25_slidermw(uint16 argc, uint16 *argv) {
 }
 
 void RivenExternal::xgscpbtn(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeButtonMovie();
 }
 
 void RivenExternal::xgisland1490_domecheck(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeCheck();
 }
 
 void RivenExternal::xgplateau3160_dopools(uint16 argc, uint16 *argv) {
@@ -978,11 +1001,11 @@ void RivenExternal::xjdome25_slidermw(uint16 argc, uint16 *argv) {
 }
 
 void RivenExternal::xjscpbtn(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeButtonMovie();
 }
 
 void RivenExternal::xjisland3500_domecheck(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeCheck();
 }
 
 int RivenExternal::jspitElevatorLoop() {
@@ -1258,11 +1281,11 @@ void RivenExternal::xpisland990_elevcombo(uint16 argc, uint16 *argv) {
 }
 
 void RivenExternal::xpscpbtn(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeButtonMovie();
 }
 
 void RivenExternal::xpisland290_domecheck(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeCheck();
 }
 
 void RivenExternal::xpisland25_opencard(uint16 argc, uint16 *argv) {
@@ -1457,11 +1480,11 @@ void RivenExternal::xtakeit(uint16 argc, uint16 *argv) {
 }
 
 void RivenExternal::xtscpbtn(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeButtonMovie();
 }
 
 void RivenExternal::xtisland4990_domecheck(uint16 argc, uint16 *argv) {
-	// TODO: Dome related
+	runDomeCheck();
 }
 
 void RivenExternal::xtisland5056_opencard(uint16 argc, uint16 *argv) {