From b1a9e2a2fcddc5272b5e013e2af273ec34ac7467 Mon Sep 17 00:00:00 2001
From: Alex Karle <alex@karle.co>
Date: Wed, 29 Apr 2020 23:25:42 -0400
Subject: [PATCH] Euchre::Dealer: Add leave_game action for endgame

In theory, this is doable at any time, but we'd really only like people
to do this in lobby/end for now (a future commit will hopefully change
it).

Anyways, the critical thing is that we take the player out of the $game
so that the gamestate is no longer sent to them. It'll be up to the
client to at this point redraw a start screen or something (does this
make debug.html no longer a valid client? it certainly is a hack...)
---
 lib/Euchre/Dealer.pm | 30 ++++++++++++++++++++++++++++++
 public/debug.html    |  4 ++++
 2 files changed, 34 insertions(+)

diff --git a/lib/Euchre/Dealer.pm b/lib/Euchre/Dealer.pm
index 0b750a8..7fbbcbf 100644
--- a/lib/Euchre/Dealer.pm
+++ b/lib/Euchre/Dealer.pm
@@ -38,6 +38,7 @@ use constant {
     BAD_VOTE        => 14,
     FOLLOW_SUIT     => 16,
     DONT_HAVE_CARD  => 17,
+    NOT_IN_GAME     => 18,
 };
 
 our @ERRORS = ();
@@ -59,6 +60,7 @@ $ERRORS[VOTE_OFF_KITTY]  = "Can't vote for kitty card suit after turned down";
 $ERRORS[BAD_VOTE]        = "Bad vote";
 $ERRORS[FOLLOW_SUIT]     = "Have to follow suit!";
 $ERRORS[DONT_HAVE_CARD]  = "You don't have that card!";
+$ERRORS[NOT_IN_GAME]     = "You're not in any game";
 
 
 # XXX: The first draft of this was written quickly and chose
@@ -176,6 +178,7 @@ sub handle_msg {
         # Game management endpoints
         ping        => [\&pong],
         join_game   => [\&join_game],
+        leave_game  => [\&leave_game],
         take_seat   => [\&take_seat, 'lobby', CHANGE_SEAT],
         stand_up    => [\&stand_up, 'lobby', STAND_UP],
         start_game  => [\&start_game, 'lobby', START_GAME],
@@ -267,6 +270,33 @@ sub join_game {
     broadcast_gamestate($game);
 }
 
+sub leave_game {
+    my ($p) = @_;
+
+    my $game = $p->{game};
+    if (!defined $game) {
+        send_error($p, NOT_IN_GAME);
+        return;
+    }
+
+    delete $p->{game};
+    if (exists $p->{seat}) {
+        $game->{players}->[$p->{seat}] = undef;
+        delete $p->{seat};
+        delete $p->{hand};
+    } else {
+        # Check for specatator
+        for (my $i = 0; $i < @{$game->{spectators}}; $i++) {
+            if ($game->{spectators}->[$i]->{id} eq $p->{id}) {
+                splice(@{$game->{spectators}}, $i, 1);
+                last;
+            }
+        }
+    }
+
+    broadcast_gamestate($game); # let others know
+}
+
 # seat
 sub take_seat {
     my ($p, $msg) = @_;
diff --git a/public/debug.html b/public/debug.html
index b140660..2035d89 100644
--- a/public/debug.html
+++ b/public/debug.html
@@ -101,6 +101,9 @@
       ws.send(JSON.stringify({action:'chat', msg: document.getElementById('chat').value }))
       document.getElementById('chat').value = '';
     }
+    function leaveGame() {
+      ws.send(JSON.stringify({action:'leave_game'}))
+    }
 
     window.setInterval(() => { ws.send(JSON.stringify({action:'ping'})) }, 5000);
   </script>
@@ -112,6 +115,7 @@
  <input type="text" id="gamename">
  <button onclick="joinGame(0)">Join Game</button>
  <button onclick="joinGame(1)">Force Join</button>
+ <button onclick="leaveGame()">Leave Game</button>
  <br><br>
  <label for="seat_no">Seat:</label>
  <input type="number" id="seat_no">
--
libgit2 1.1.1