numeric setting value display fix

src/util/command_line.hpp

@@ -0,0 +1,41 @@
+#ifndef UTIL_COMMAND_LINE_HPP_
+#define UTIL_COMMAND_LINE_HPP_
+
+#include <string>
+#include <iostream>
+#include <stdexcept>
+#include "../files/engine_paths.h"
+
+class ArgsReader {
+    int argc;
+    char** argv;
+    int pos = 0;
+    const char* last = "";
+public:
+    ArgsReader(int argc, char** argv) : argc(argc), argv(argv) {}
+
+    void skip() {
+        pos++;
+    }
+
+    bool hasNext() const {
+        return pos < argc;
+    }
+
+    bool isKeywordArg() const {
+        return last[0] == '-';
+    }
+
+    std::string next() {
+        if (pos >= argc) {
+            throw std::runtime_error("unexpected end");
+        }
+        last = argv[pos];
+        return argv[pos++];
+    }
+};
+
+/// @return false if engine start can
+bool parse_cmdline(int argc, char** argv, EnginePaths& paths);
+
+#endif // UTIL_COMMAND_LINE_HPP_