Don't assert on pop when no script is loaded

svn-id: r41770

3 files changed, 15 insertions, 4 deletions

diff --git a/engines/gob/game_v1.cpp b/engines/gob/game_v1.cpp
index 1a530fa4f6..f038c7edc3 100644
--- a/engines/gob/game_v1.cpp
+++ b/engines/gob/game_v1.cpp
@@ -242,8 +242,7 @@ void Game_v1::playTot(int16 skipPlay) {
 	_vm->_inter->_breakFromLevel = oldBreakFrom;
 	_vm->_scenery->_pCaptureCounter = oldCaptureCounter;
 
-	if (_script->isLoaded())
-		_script->pop();
+	_script->pop();
 }
 
 void Game_v1::clearCollisions() {
diff --git a/engines/gob/game_v2.cpp b/engines/gob/game_v2.cpp
index e170a1c9d0..ace842f18e 100644
--- a/engines/gob/game_v2.cpp
+++ b/engines/gob/game_v2.cpp
@@ -293,8 +293,7 @@ void Game_v2::playTot(int16 skipPlay) {
 	_vm->_inter->_breakFromLevel = oldBreakFrom;
 	_vm->_scenery->_pCaptureCounter = oldCaptureCounter;
 
-	if (_script->isLoaded())
-		_script->pop();
+	_script->pop();
 }
 
 void Game_v2::clearCollisions() {
diff --git a/engines/gob/script.cpp b/engines/gob/script.cpp
index ab2d8cdaf2..e4808cf9ce 100644
--- a/engines/gob/script.cpp
+++ b/engines/gob/script.cpp
@@ -419,6 +419,10 @@ bool Script::isFinished() const {
 }
 
 void Script::push() {
+	if (!isLoaded())
+		// Nothing to do
+		return;
+
 	CallEntry currentCall;
 
 	currentCall.totPtr = _totPtr;
@@ -428,6 +432,11 @@ void Script::push() {
 }
 
 void Script::pop(bool ret) {
+	if (!isLoaded())
+		// Nothing to do
+		return;
+
+	// Unmatched pop?
 	assert(!_callStack.empty());
 
 	CallEntry lastCall = _callStack.pop();
@@ -439,6 +448,10 @@ void Script::pop(bool ret) {
 }
 
 void Script::call(uint32 offset) {
+	if (!isLoaded())
+		// Nothing to do
+		return;
+
 	push();
 	seek(offset);
 }