Bugfixing, switched to human name for humans

src/olympus/src/olympus.cpp

@@ -20,8 +20,35 @@ f_coreMissionData coreMissionData = nullptr;
 
 string modPath;
 
+//Returns the last Win32 error, in string format. Returns an empty string if there is no error.
+std::string GetLastErrorAsString()
+{
+    //Get the error message ID, if any.
+    DWORD errorMessageID = ::GetLastError();
+    if (errorMessageID == 0) {
+        return std::string(); //No error message has been recorded
+    }
+
+    LPSTR messageBuffer = nullptr;
+
+    //Ask Win32 to give us the string version of that message ID.
+    //The parameters we pass in, tell Win32 to create the buffer that holds the message for us (because we don't yet know how long the message string will be).
+    size_t size = FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+        NULL, errorMessageID, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&messageBuffer, 0, NULL);
+
+    //Copy the error message into a std::string.
+    std::string message(messageBuffer, size);
+
+    //Free the Win32's string's buffer.
+    LocalFree(messageBuffer);
+
+    return message;
+}
+
 static int onSimulationStart(lua_State* L)
 {
+    LogInfo(L, "Trying to load core.dll from " + modPath);
+    SetDllDirectoryA(modPath.c_str());
     log("onSimulationStart callback called successfully");
 
     string dllLocation = modPath + "\\core.dll";
@@ -85,7 +112,7 @@ static int onSimulationStart(lua_State* L)
 	return 0;
 
 error:
-    LogError(L, "Error while loading module, see Olympus.log in temporary folder for additional details.");
+    LogError(L, "Error while loading module: " + GetLastErrorAsString());
     return 0;
 }
 
@@ -132,7 +159,7 @@ static int onSimulationStop(lua_State* L)
     return 0;
 
 error:
-    LogError(L, "Error while unloading module, see Olympus.log in temporary folder for additional details.");
+    LogError(L, "Error while unloading module: " + GetLastErrorAsString());
     return 0;
 }