1 files changed, 6 insertions, 0 deletions
diff --git a/src/main/java/design/model/Play.java b/src/main/java/design/model/Play.java
index b61228b..cf44cd8 100644
--- a/src/main/java/design/model/Play.java
+++ b/src/main/java/design/model/Play.java
@@ -7,6 +7,12 @@ public class Play {
     private final int distance;
     private final List<Swing> swings;
 
+    // for deserialization
+    private Play(int distance, List<Swing> swings) {
+        this.distance = distance;
+        this.swings = swings;
+    }
+
     public Play(int distance) {
         this.swings = new ArrayList<>();
         this.distance = distance;