Added Difficulty Scaling Script and Functionality

Unity-Files/Assets/Examples/Defender/Defender.unity

@@ -2278,6 +2278,7 @@ GameObject:
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+--- !u!114 &1011785963
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+  difficultyScaleInSeconds: 30
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Unity-Files/Assets/Scripts/Gameplay/DifficultyScale.cs

@@ -0,0 +1,26 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class DifficultyScale : MonoBehaviour
+{
+    public GameObject time;
+    [SerializeField] private int difficultyScaleInSeconds = 30;
+    private int nextDifficultyLevel = 2;
+
+    // Start is called before the first frame update
+    void Start()
+    {
+
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if ((Mathf.FloorToInt(time.GetComponent<UITimer>().time) / difficultyScaleInSeconds) + 1 == nextDifficultyLevel)
+        {
+            nextDifficultyLevel++;
+            this.GetComponent<ObjectCreatorArea>().spawnInterval = this.GetComponent<ObjectCreatorArea>().spawnInterval * 0.5f;
+        }
+    }
+}

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