From d9a41e478c59e03cc5409fdc8090319ada42957c Mon Sep 17 00:00:00 2001
From: Florian Fischer <florian.fischer@muhq.space>
Date: Thu, 2 Feb 2023 00:12:05 +0100
Subject: specify ActionCostFunc type to allow type assertion

---
 go/game/kraken.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/go/game/kraken.go b/go/game/kraken.go
index 19adfd3c..d39cbaa3 100644
--- a/go/game/kraken.go
+++ b/go/game/kraken.go
@@ -101,7 +101,8 @@ turn:
 		}
 		kraken.Hand.AddCard(c)
 
-		costFunc := func(s *State) bool {
+		var costFunc ActionCostFunc
+		costFunc = func(s *State) bool {
 			kraken.Resource -= c.BuyCost
 			return true
 		}
-- 
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