From 96c4980e7126f3a51d1f3b94e3c9dc47d6e035dc Mon Sep 17 00:00:00 2001
From: psyGamer <psygamer21@gmail.com>
Date: Sat, 3 Aug 2024 13:18:53 +0200
Subject: [PATCH] Add a slowdown option

---
 Source/Data/Save.cs                           | 7 +++++++
 Source/Game.cs                                | 9 ++++++++-
 Source/Scenes/World.cs                        | 1 +
 Source/SpeedrunUtils/SpeedrunUtilsControls.cs | 6 ++++++
 Source/SpeedrunUtils/SpeedrunUtilsMod.cs      | 8 ++++++++
 5 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/Source/Data/Save.cs b/Source/Data/Save.cs
index 26d6d5e..4fe1387 100644
--- a/Source/Data/Save.cs
+++ b/Source/Data/Save.cs
@@ -89,6 +89,8 @@ public void ResetSpeedrunPracticeTime()
 
 	// If the Speedrun Timer should be paused when practice mode is enabled and the player is within range of a checkpoint
 	public bool SpeedrunPracticeTimerPauseNearCheckpoint { get; set; } = false;
+    
+    public float SpeedrunSlowdownFactor { get; set; } = 0.5f;
 
 	/// <summary>
 	/// 0-10 Music volume level
@@ -194,6 +196,11 @@ public void ToggleSpeedrunPracticeTimerPauseNearCheckpoint()
 	{
 		SpeedrunPracticeTimerPauseNearCheckpoint = !SpeedrunPracticeTimerPauseNearCheckpoint;
 	}
+    
+    public void SetSpeedrunSlowdownFactor(int value)
+    {
+        SpeedrunSlowdownFactor = value / 10.0f;
+    }
 
 	public TimeSpan GetCurrentDisplayTime()
 	{
diff --git a/Source/Game.cs b/Source/Game.cs
index 680c669..fdcc288 100644
--- a/Source/Game.cs
+++ b/Source/Game.cs
@@ -118,11 +118,18 @@ public void Goto(Transition next)
 		if (transition.StopMusic)
 			Music.Stop();
 	}
-
+    
+    private float ellapsedTime = 0.0f;
+    
 	public override void Update()
 	{
         SpeedrunUtilsMod.Update();
         
+        ellapsedTime += SpeedrunUtilsMod.GameSpeed;
+        if (ellapsedTime < Time.Delta)
+            return;
+        ellapsedTime -= Time.Delta;
+        
 		// update top scene
 		if (scenes.TryPeek(out var scene))
 		{
diff --git a/Source/Scenes/World.cs b/Source/Scenes/World.cs
index 9fc94c0..c0d0703 100644
--- a/Source/Scenes/World.cs
+++ b/Source/Scenes/World.cs
@@ -101,6 +101,7 @@ public World(EntryInfo entry)
             speedrunMenu.Add(new Menu.Toggle(Loc.Str("SpeedrunUtils_PracticeTimer"), Save.Instance.ToggleSpeedrunPracticeTime, () => Save.Instance.SpeedrunPracticeTimer));
             speedrunMenu.Add(new Menu.Toggle(Loc.Str("SpeedrunUtils_PracticeTimer_PauseInMenu"), Save.Instance.ToggleSpeedrunPracticeTimerPauseInMenu, () => Save.Instance.SpeedrunPracticeTimerPauseInMenu));
             speedrunMenu.Add(new Menu.Toggle(Loc.Str("SpeedrunUtils_PracticeTimer_PauseNearCheckpoint"), Save.Instance.ToggleSpeedrunPracticeTimerPauseNearCheckpoint, () => Save.Instance.SpeedrunPracticeTimerPauseNearCheckpoint));
+            speedrunMenu.Add(new Menu.Slider(Loc.Str("SpeedrunUtils_SlowdownFactor"), 1, 10, () => (int)(Save.Instance.SpeedrunSlowdownFactor * 10.0f), Save.Instance.SetSpeedrunSlowdownFactor));
 
 			pauseMenu.Title = Loc.Str("PauseTitle");
             pauseMenu.Add(new Menu.Option(Loc.Str("PauseResume"), () => SetPaused(false)));
diff --git a/Source/SpeedrunUtils/SpeedrunUtilsControls.cs b/Source/SpeedrunUtils/SpeedrunUtilsControls.cs
index c1d2219..519b59d 100644
--- a/Source/SpeedrunUtils/SpeedrunUtilsControls.cs
+++ b/Source/SpeedrunUtils/SpeedrunUtilsControls.cs
@@ -5,6 +5,7 @@ public class SpeedrunUtilsControls
     public static readonly VirtualButton SaveState = new("SaveState");
     public static readonly VirtualButton LoadState = new("LoadState");
     public static readonly VirtualButton ClearState = new("ClearState");
+    public static readonly VirtualButton ToggleSlowdown = new("ToggleSlowdown");
     
     public static bool SlotChangeModDown => SlotChangeMod.Down || SlotChangeMod.Bindings.Count == 0; 
     private static readonly VirtualButton SlotChangeMod = new("SlotChangeMod");
@@ -40,6 +41,8 @@ public static void Load(ControlsConfig? config = null)
             it.BindTo(LoadState);
         foreach (var it in FindAction(config, "SpeedrunUtils_ClearState"))
             it.BindTo(ClearState);
+        foreach (var it in FindAction(config, "SpeedrunUtils_ToggleSlowdown"))
+            it.BindTo(ToggleSlowdown);
         
         foreach (var it in FindAction(config, "SpeedrunUtils_SlotChangeMod"))
             it.BindTo(SlotChangeMod);
@@ -63,6 +66,9 @@ public static void Load(ControlsConfig? config = null)
 				new(Keys.F4),
                 new(Keys.F6),
 			],
+            ["SpeedrunUtils_ToggleSlowdown"] = [
+                new (Keys.F3),
+            ],
             
             ["SpeedrunUtils_SlotChangeMod"] = [
                 new (Keys.LeftControl),
diff --git a/Source/SpeedrunUtils/SpeedrunUtilsMod.cs b/Source/SpeedrunUtils/SpeedrunUtilsMod.cs
index 92c1fbf..8e59d9d 100644
--- a/Source/SpeedrunUtils/SpeedrunUtilsMod.cs
+++ b/Source/SpeedrunUtils/SpeedrunUtilsMod.cs
@@ -13,6 +13,9 @@ public static class SpeedrunUtilsMod
     private static bool loadQueued = false;
     private static readonly SaveState?[] currentStates = new SaveState[MaxSaveStateSlots];
     
+    private static bool slowdown = false;
+    public static float GameSpeed => slowdown ? Time.Delta * Save.Instance.SpeedrunSlowdownFactor : Time.Delta;
+    
     public static void Load()
     {
         SaveState.Configure();
@@ -58,6 +61,11 @@ public static void Update()
             toastTimer = ToastTime;
         }
         
+        if (SpeedrunUtilsControls.ToggleSlowdown.ConsumePress())
+        {
+            slowdown = !slowdown;
+        }
+        
         // Switch between save-state slots
         if (SpeedrunUtilsControls.SlotChangeModDown)
         {