Mark cards that are not playable

Assets/Battle/BattleState.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class BattleState
+{
+//     public delegate void BattleStateChangedAction();
+//     public event BattleStateChangedAction OnBattleStateChanged;
+    private bool heroTurn;
+
+    public bool IsTeamsTurn(TeamChoice team) {
+        if (team == TeamChoice.Heroes) {
+            return this.HeroTurn;
+        } else {
+            return !this.HeroTurn;
+        }
+    }
+
+    public bool HeroTurn {get => this.heroTurn; set => this.heroTurn = value;}
+}