GOB: Add oGeisha_checkData

2 files changed, 19 insertions, 0 deletions

diff --git a/engines/gob/inter.h b/engines/gob/inter.h
index f229478301..84180f407d 100644
--- a/engines/gob/inter.h
+++ b/engines/gob/inter.h
@@ -347,6 +347,7 @@ protected:
 	void oGeisha_loadCursor(OpFuncParams &params);
 	void oGeisha_goblinFunc(OpFuncParams &params);
 	void oGeisha_loadSound(OpFuncParams &params);
+	void oGeisha_checkData(OpFuncParams &params);
 
 	void oGeisha_gamePenetration(OpGobParams &params);
 	void oGeisha_gameDiving(OpGobParams &params);
diff --git a/engines/gob/inter_geisha.cpp b/engines/gob/inter_geisha.cpp
index 3f79088ac8..658f2346f4 100644
--- a/engines/gob/inter_geisha.cpp
+++ b/engines/gob/inter_geisha.cpp
@@ -53,6 +53,7 @@ void Inter_Geisha::setupOpcodesFunc() {
 	OPCODEFUNC(0x03, oGeisha_loadCursor);
 	OPCODEFUNC(0x25, oGeisha_goblinFunc);
 	OPCODEFUNC(0x3A, oGeisha_loadSound);
+	OPCODEFUNC(0x3F, oGeisha_checkData);
 
 	OPCODEGOB(0, oGeisha_gamePenetration);
 	OPCODEGOB(1, oGeisha_gameDiving);
@@ -112,6 +113,23 @@ int16 Inter_Geisha::loadSound(int16 slot) {
 	return 0;
 }
 
+void Inter_Geisha::oGeisha_checkData(OpFuncParams &params) {
+	const char *file   = _vm->_game->_script->evalString();
+	      int16 varOff = _vm->_game->_script->readVarIndex();
+
+	Common::String fileName(file);
+
+	fileName.toLowercase();
+	if (fileName.hasSuffix(".0ot"))
+		fileName.setChar('t', fileName.size() - 3);
+
+	if (!_vm->_dataIO->hasFile(fileName)) {
+		warning("File \"%s\" not found", fileName.c_str());
+		WRITE_VAR_OFFSET(varOff, (uint32) -1);
+	} else
+		WRITE_VAR_OFFSET(varOff, 50); // "handle" between 50 and 128 = in archive
+}
+
 void Inter_Geisha::oGeisha_gamePenetration(OpGobParams &params) {
 	uint16 var1 = _vm->_game->_script->readUint16();
 	uint16 var2 = _vm->_game->_script->readUint16();