Some more safety checks and the first room's background can be seen

svn-id: r28204

4 files changed, 11 insertions, 1 deletions

diff --git a/engines/gob/goblin.cpp b/engines/gob/goblin.cpp
index 418b31e2ee..1db741bd44 100644
--- a/engines/gob/goblin.cpp
+++ b/engines/gob/goblin.cpp
@@ -1698,6 +1698,9 @@ void Goblin::playSounds(Mult::Mult_Object *obj) {
 	int16 sndSlot;
 	int16 frame;
 
+	if (!obj->goblinStates)
+		return;
+
 	animData = obj->pAnimData;
 
 	for (int i = 1; i <= obj->goblinStates[animData->state][0].dataCount; i++) {
diff --git a/engines/gob/goblin_v3.cpp b/engines/gob/goblin_v3.cpp
index 002ef7b749..f4aa872fa1 100644
--- a/engines/gob/goblin_v3.cpp
+++ b/engines/gob/goblin_v3.cpp
@@ -115,6 +115,9 @@ void Goblin_v3::placeObject(Gob_Object *objDesc, char animated,
 	Mult::Mult_Object &obj = _vm->_mult->_objects[index];
 	Mult::Mult_AnimData &objAnim = *(obj.pAnimData);
 
+	if (!obj.goblinStates)
+		return;
+
 	if ((state != -1) && (obj.goblinStates[state] != 0)) {
 		if (state == 8)
 			objAnim.curLookDir = 0;
diff --git a/engines/gob/inter_v1.cpp b/engines/gob/inter_v1.cpp
index bc7eb2ea11..572f133e33 100644
--- a/engines/gob/inter_v1.cpp
+++ b/engines/gob/inter_v1.cpp
@@ -1705,6 +1705,10 @@ bool Inter_v1::o1_capturePush(OpFuncParams &params) {
 	top = _vm->_parse->parseValExpr();
 	width = _vm->_parse->parseValExpr();
 	height = _vm->_parse->parseValExpr();
+
+	if ((width < 0) || (height < 0))
+		return false;
+
 	_vm->_game->capturePush(left, top, width, height);
 	(*_vm->_scenery->_pCaptureCounter)++;
 	return false;
diff --git a/engines/gob/scenery.cpp b/engines/gob/scenery.cpp
index ae04c220d3..95cf90bddc 100644
--- a/engines/gob/scenery.cpp
+++ b/engines/gob/scenery.cpp
@@ -320,7 +320,7 @@ void Scenery::updateStatic(int16 orderFrom, byte index, byte layer) {
 	int16 top;
 	int16 bottom;
 
-	if (layer >= _statics[index].layersCount)
+	if ((index >= 10) || layer >= _statics[index].layersCount)
 		return;
 
 	layerPtr = &_statics[index].layers[layer];