feat: ticker is decoupled from stopwatch and added timer and stopwatch tickers

Engine.Systems/Time/TickerTimer.cs

@@ -0,0 +1,40 @@
+using Syntriax.Engine.Core;
+
+namespace Syntriax.Engine.Systems.Time;
+
+public class TickerTimer : Timer, ITicker
+{
+    public Event<ITicker> OnTick { get; } = new();
+
+    public double Period { get; set; } = 1f;
+    public int TickCounter { get; private set; } = 0;
+
+    private double nextTick = double.MinValue;
+
+    public override void Start(double time)
+    {
+        TickCounter = 0;
+        base.Start(time);
+        nextTick = Remaining - Period;
+    }
+
+    public override void Update()
+    {
+        base.Update();
+
+        while (Remaining <= nextTick)
+        {
+            nextTick -= Period;
+            TickCounter++;
+            OnTick?.Invoke(this);
+        }
+    }
+
+    protected override void OnFinalize()
+    {
+        base.OnFinalize();
+
+        TickCounter = 0;
+        nextTick = 0f;
+    }
+}