--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/libmlk-core/core/util.c	Fri Oct 01 20:30:00 2021 +0200
@@ -0,0 +1,54 @@
+/*
+ * util.c -- utilities
+ *
+ * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <assert.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include <SDL.h>
+
+#include <port/port.h>
+
+#include "util.h"
+
+void
+util_delay(unsigned int ms)
+{
+	SDL_Delay(ms);
+}
+
+const char *
+util_pathf(const char *fmt, ...)
+{
+	static char path[PATH_MAX];
+	va_list ap;
+
+	va_start(ap, fmt);
+	vsnprintf(path, sizeof (path), fmt, ap);
+	va_end(ap);
+
+	return path;
+}
+
+unsigned int
+util_nrand(unsigned int lower, unsigned int upper)
+{
+	assert(upper <= RAND_MAX);
+
+	return (rand() % (upper - lower)) + lower;
+}