From abe3f3d688134359a5a19a0bf0bf81b6de4fe9a5 Mon Sep 17 00:00:00 2001
From: Luke Meyers <n.luke.meyers@gmail.com>
Date: Sat, 8 Feb 2020 23:04:09 -0800
Subject: [PATCH] log ties

---
 game/game.go | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/game/game.go b/game/game.go
index c63d030..8e392b9 100644
--- a/game/game.go
+++ b/game/game.go
@@ -46,15 +46,24 @@ func UpdateState(s State, sOld State, cmds []Command) State {
 		s = doCommand(cmd, s, i)
 	}
 
+	var winners []int
 	for _, t := range s.Teams {
 		if r := ActiveRacer(t); r != nil {
 			if won(*r, s) {
-				log.Printf("team %d won", t.id)
-				s.GameOver = true
+				winners = append(winners, t.id)
 			}
 		}
 	}
 
+	switch n := len(winners); {
+	case n == 1:
+		log.Printf("team %d won", winners[0])
+		s.GameOver = true
+	case n > 1:
+		log.Printf("%d-way tie between teams: %v", len(winners), winners)
+		s.GameOver = true
+	}
+
 	return s
 }