riversong code showcase

Source/Riversong/Game/GameSpeed/GameSpeedSystem.cs

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+using System;
+using Cysharp.Threading.Tasks;
+using UnityEngine;
+using UnityEngine.InputSystem;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    [Service(typeof(IGameSpeed))]
+    [GameSystemGroup(typeof(EarlyGameSystemGroup))]
+    [RequiresWorldReadyForUpdate]
+    [UpdateBefore(typeof(WorldTimeSystem))]
+    public class GameSpeedSystem : GameSystem, IGameSpeed, IInitializable, IUpdatable, IDisposable
+    {
+        private const float NormalSpeed = 1;
+
+        private const float FastSpeed = 2;
+
+        private const float VeryFastSpeed = 4;
+
+        public GameSpeedSystem(IServiceLocator serviceLocator) : base(serviceLocator)
+        {
+        }
+
+        public int SpeedLevel { get; private set; }
+
+        public UniTask InitializeAsync()
+        {
+            SetSpeedLevel(0);
+
+            return UniTask.CompletedTask;
+        }
+
+        public void Dispose()
+        {
+            SetSpeedLevel(0);
+        }
+
+        public void Update()
+        {
+            if (Keyboard.current.digit1Key.wasPressedThisFrame)
+                SetSpeedLevel(0);
+            else if (Keyboard.current.digit2Key.wasPressedThisFrame)
+                SetSpeedLevel(1);
+            else if (Keyboard.current.digit3Key.wasPressedThisFrame) SetSpeedLevel(2);
+
+            Time.timeScale = GetTimeScale();
+        }
+
+        public void SetSpeedLevel(int speedLevel)
+        {
+            SpeedLevel = speedLevel;
+        }
+
+        private float GetTimeScale()
+        {
+            return SpeedLevel switch
+            {
+                1 => FastSpeed,
+                2 => VeryFastSpeed,
+                _ => NormalSpeed
+            };
+        }
+    }
+}