Schematics: Error if unable to open file

diff --git a/src/mg_schematic.cpp b/src/mg_schematic.cpp
index a05e372e51c43e6e3908cc3ddf4bc80b5d2e5333..23b62115f2078b6ebe19d1bb7add1756f8e87c35 100644 (file)
--- a/src/mg_schematic.cpp
+++ b/src/mg_schematic.cpp
@@ -207,6 +207,11 @@ bool Schematic::loadSchematicFromFile(const char *filename, INodeDefManager *nde
        bool have_cignore = false;
 
        std::ifstream is(filename, std::ios_base::binary);
+       if (!is.good()) {
+               errorstream << "loadSchematicFile: unable to open file '"
+                       << filename << "'" << std::endl;
+               return false;
+       }
 
        u32 signature = readU32(is);
        if (signature != MTSCHEM_FILE_SIGNATURE) {