add Contains check for PileOfCards

1 files changed, 9 insertions, 0 deletions

diff --git a/go/game/pileOfCards.go b/go/game/pileOfCards.go
index c8b81c87..427bba47 100644
--- a/go/game/pileOfCards.go
+++ b/go/game/pileOfCards.go
@@ -1,8 +1,13 @@
 package game
 
+import (
+	"golang.org/x/exp/slices"
+)
+
 type PileOfCards interface {
 	Size() int
 	IsEmpty() bool
+	Contains(*Card) bool
 	Cards() []*Card
 	AddCards(cards []*Card)
 	AddCard(card *Card)
@@ -27,6 +32,10 @@ func (poc *PileOfCardsBase) IsEmpty() bool {
 	return poc.Size() == 0
 }
 
+func (poc *PileOfCardsBase) Contains(card *Card) bool {
+	return slices.Contains(poc.cards, card)
+}
+
 func (poc *PileOfCardsBase) Cards() []*Card {
 	return poc.cards
 }