some explanation in usage output

1 files changed, 4 insertions, 1 deletions

diff --git a/src/main.c b/src/main.c
index b75d83e..8ab12f3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -8,7 +8,10 @@
 
 static void print_usage(const char* name)
 {
-	fprintf(stderr, "Usage: %s [-u nickname] [-s server] [-n num_players] -p port\n", name);
+	const char* usage = "Usage: %s [-u nickname] [-s server] [-n num_players] -p port\n"
+	                    "\tserver\t\thostname/address of server; only required on client\n"
+			    "\tnum_players\tnumber of players; optional on server (default: 2)\n";
+	fprintf(stderr, usage, name);
 	exit(EXIT_FAILURE);
 }