added freetime etc

Assets/Scripts/Managers/EconomyManager.cs

@@ -0,0 +1,23 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EconomyManager : MonoBehaviour
+{
+    public static EconomyManager instance;
+
+    [SerializeField]
+    float money = 0.0f;
+
+    private void Awake()
+    {
+        if (instance == null)
+            instance = this;
+    }
+
+    public void AddMoney(float value) => money += value;
+    public float GetMoney() => money;
+    public string GetMoneyStr() => money.ToString() + " <20>";
+    public void SetMoney(float value) => money = value;
+    public void RemoveMone(float value) => money -= value;
+}