Onto lesson 2

Assets/Scripts/ResourceSource.cs

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+using UnityEngine;
+using UnityEngine.Events;
+
+public enum ResourceType
+{
+    Wood,
+    Stone,
+    Food
+}
+
+public class ResourceSource : MonoBehaviour
+{
+    public ResourceType type;
+    public int quantity;
+    //events
+    public UnityEvent onQuantityChange;
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+    public void GatherResource(int amount, Player gatheringPlayer)
+    {
+        quantity -= amount;
+        int amountToGive = amount;
+        if(quantity < 0)
+            amountToGive = amount + quantity;
+        if(quantity <= 0)
+            Destroy(gameObject);
+        if(onQuantityChange != null)
+            onQuantityChange.Invoke();
+    }
+}