Implement basic production chain logic

Assets/Scripts/Mine.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+
+public class Mine : MonoBehaviour
+{
+    public Resource resource;
+    private GameManager gameManager;    
+    // Start is called before the first frame update
+    void Start()
+    {
+        gameManager = GameObject.Find("GameManager").GetComponent<GameManager>();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+
+    private void OnMouseDown()
+    {
+        gameManager.AddResource(resource, 1);
+    }
+}