added default port

1 files changed, 12 insertions, 5 deletions

diff --git a/src/main.c b/src/main.c
index dda53ac..befd960 100644
--- a/src/main.c
+++ b/src/main.c
@@ -6,13 +6,17 @@
 #include "data_store.h"
 #include "game.h"
 
+#define DEFAULT_PORT "12345"
+
 static void print_usage(const char* name)
 {
-	const char* usage = "Usage: %s [-u nickname] [-s address] [-n num_players] [-l] -p port\n"
-	                    "\t-s address\t\thostname/address to connect to (client) or listen on (server)\n"
+	const char* usage = "Usage: %s [-u username] [-s address] [-n num_players] [-l] [-p port]\n"
+	                    "\t-s address\t\thostname/address to connect to (client, required) or listen on (server, optional)\n"
 			    "\t-n num_players\t\tnumber of players; only on server (default: 2)\n"
-			    "\t-l\t\t\tstart server\n";
-	fprintf(stderr, usage, name);
+			    "\t-l\t\t\tstart server\n"
+			    "\t-u username\t\tyour nickname in the player list (default: $USER)\n"
+			    "\t-p port\t\t\tport to use for connecting/listening (default: %s)\n";
+	fprintf(stderr, usage, name, DEFAULT_PORT);
 	exit(EXIT_FAILURE);
 }
 
@@ -53,9 +57,12 @@ int main(int argc, char *argv[])
 		}
 	}
 
-	if(port == NULL)
+	if(!servermode && addr == NULL)
 		print_usage(argv[0]);
 
+	if(port == NULL)
+		port = DEFAULT_PORT;
+
 	if(strlen(ds->nickname) == 0)
 	{
 		const char* env_nick = getenv("USER");