Made entity parser give more useful errors and fixed the errors that were while I was at it

src/Engine/Core/Util/Logging.cpp

@@ -4,4 +4,40 @@
 _LOG_LEVEL LOG_LEVEL = LOG_LEVEL_DEBUG;
 #else
 _LOG_LEVEL LOG_LEVEL = LOG_LEVEL_INFO;
-#endif
+#endif
+
+const char* _LOG_LEVEL_PREFIX[] =
+{
+    "EE: ",
+	"",
+	"WW: ",
+	"DD: "
+};
+
+void _LOG(_LOG_LEVEL logLevel, const char* file, const char* func, unsigned int line, const char* format, ...)
+{
+	if (logLevel > LOG_LEVEL) {
+		return;
+	}
+
+	char* message = nullptr;
+	va_list args;
+
+	va_start(args, format);
+	size_t size = vsnprintf(message, 0, format, args) + 1;
+	va_end(args);
+
+	va_start(args, format);
+	message = new char[size];
+	vsnprintf(message, size, format, args);
+	va_end(args);
+
+	if (logLevel == LOG_LEVEL_ERROR) {
+		std::cerr << file << ":" << line << " " << func << std::endl;
+		std::cerr << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
+	} else {
+		std::cout << _LOG_LEVEL_PREFIX[logLevel] << message << std::endl;
+	}
+
+	delete[] message;
+}