FIXED AND WORKING... BACKUP IF IT GOES WRONG

src/app/home/deltaTime.ts

@@ -0,0 +1,27 @@
+export class DeltaTime {
+    private lastTick: number;
+    private static instance: DeltaTime;
+    private deltaTime: number;
+
+    private constructor() {
+        this.lastTick = Date.now();
+    }
+
+    public static getInstance() {
+        if (!this.instance) {
+            this.instance = new DeltaTime();
+        }
+        return this.instance;
+    }
+
+    public updateDeltaTime() {
+        const time = Date.now();
+        this.deltaTime = time - this.lastTick;
+        this.lastTick = time;
+    }
+
+    public getDeltaTime(): number {
+        return this.deltaTime;
+    }
+
+}