From d2c0ab7a62b7a2c99c4c491ce55466859429571b Mon Sep 17 00:00:00 2001
From: rodri <rgl@antares-labs.eu>
Date: Fri, 5 May 2023 22:35:14 +0000
Subject: handle player quits gracefully.

also fixed a bug whereby a player would never be freed if no party was happening, and another one where deleting a player from the player queue would cause a nil pointer deref.
---
 musw.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

(limited to 'musw.c')

diff --git a/musw.c b/musw.c
index 0703393..edd3826 100644
--- a/musw.c
+++ b/musw.c
@@ -231,6 +231,26 @@ initconn(void)
 	netconn.state = NCSConnecting;
 }
 
+void
+buhbye(void)
+{
+	Frame *frame;
+	int i, naptime;
+
+	if(netconn.state != NCSConnected)
+		return;
+
+	i = 10;
+	naptime = 2000/i;
+	while(i--){
+		frame = newframe(nil, NCbuhbye, netconn.lastseq+1, 0, 0, nil);
+		signframe(frame, netconn.dh.priv);
+		sendp(egress, frame);
+
+		sleep(naptime);
+	}
+}
+
 void
 sendkeys(ulong kdown)
 {
@@ -273,8 +293,12 @@ kbdproc(void *)
 		}
 		if(buf[0] == 'c'){
 			if(utfrune(buf, Kdel)){
+defenestrate:
 				close(fd);
 				threadexitsall(nil);
+			}else if(utfrune(buf, 'q')){
+				buhbye();
+				goto defenestrate;
 			}
 		}
 		if(buf[0] != 'k' && buf[0] != 'K')
@@ -414,6 +438,15 @@ threadnetppu(void *)
 
 				sendp(egress, newf);
 
+				break;
+			case NSawol:
+				weplaying = 0;
+
+				newf = newframe(nil, NCawol, frame->seq+1, frame->seq, 0, nil);
+				signframe(newf, netconn.dh.priv);
+
+				sendp(egress, newf);
+
 				break;
 			case NSbuhbye:
 				weplaying = 0;
@@ -607,6 +640,8 @@ State *matching_δ(State *s, void*)
 
 State *playing_δ(State *s, void*)
 {
+	if(!weplaying)
+		return &gamestates[GSMatching];
 	return s;
 }
 
-- 
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