1 files changed, 10 insertions, 0 deletions
diff --git a/engine/stack.go b/engine/stack.go
index d7fc7be..8bcff6f 100644
--- a/engine/stack.go
+++ b/engine/stack.go
@@ -20,3 +20,13 @@ func (s Stack) Filter(predicate func(c IsCard) bool) Stack {
 	}
 	return res
 }
+
+func (s Stack) Pop() IsCard {
+	if len(s) < 1 {
+		return nil
+	} else {
+		c := s[0]
+		s = s[1:]
+		return c
+	}
+}