Add base classes and properties

Assets/Scripts/Core/GameManager.cs

@@ -0,0 +1,52 @@
+using UnityEngine;
+
+public class GameManager : MonoBehaviour
+{
+    [Header("Stats")]
+    public int score;
+    public int wave;
+    public int enemiesConsumed;
+
+    [Header("References")]
+    public Settings settings;
+    public UIManager userInterfaceManager;
+    public MusicManager musicManager;
+    public Player player;
+    public GameObject[] pickups;
+
+    [Header("Timing")]
+    public float pickupDelay;
+    public float scoreMultiplier;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+
+    public void EnemyConsumed()
+    {
+
+    }
+
+    public void PlayerDed()
+    {
+
+    }
+
+    public void IncrementMultiplier(float val)
+    {
+
+    }
+
+    public void IncrementScore(int val)
+    {
+
+    }
+}