Prevent place 0 duration notes

Author: LumpBloom7

osu.Game.Rulesets.Sentakki/Edit/Blueprints/Holds/HoldPlacementBlueprint.cs

@@ -11,6 +11,7 @@ namespace osu.Game.Rulesets.Sentakki.Edit.Blueprints.Holds
 {
     public partial class HoldPlacementBlueprint : SentakkiPlacementBlueprint<Hold>
     {
+        protected override bool IsValidForPlacement => HitObject.Duration > 0;
         private readonly HoldHighlight highlight;
 
         public HoldPlacementBlueprint()

osu.Game.Rulesets.Sentakki/Edit/Blueprints/Slides/SlidePlacementBlueprint.cs

@@ -23,6 +23,7 @@ public partial class SlidePlacementBlueprint : SentakkiPlacementBlueprint<Slide>
 
         private readonly SlideVisual bodyHighlight;
         private readonly SlideVisual commited;
+        protected override bool IsValidForPlacement => HitObject.Duration > 0 && commitedSlideBodyInfo?.SlidePathParts?.Length > 0;
 
         [Resolved]
         private SlideEditorToolboxGroup slidePlacementToolbox { get; set; } = null!;

osu.Game.Rulesets.Sentakki/Edit/Blueprints/TouchHolds/TouchHoldPlacementBlueprint.cs

@@ -9,6 +9,8 @@ namespace osu.Game.Rulesets.Sentakki.Edit.Blueprints.TouchHolds
 {
     public partial class TouchHoldPlacementBlueprint : SentakkiPlacementBlueprint<TouchHold>
     {
+        protected override bool IsValidForPlacement => HitObject.Duration > 0;
+
         public TouchHoldPlacementBlueprint()
         {
             InternalChild = new TouchHoldHighlight();

osu.Game.Rulesets.Sentakki/Edit/Blueprints/Touches/TouchPlacementBlueprint.cs

@@ -35,10 +35,10 @@ public override void UpdateTimeAndPosition(SnapResult result)
 
             var newPosition = ToLocalSpace(result.ScreenSpacePosition) - OriginPosition;
 
-            if (Vector2.Distance(Vector2.Zero, newPosition) > 250)
+            if (Vector2.Distance(Vector2.Zero, newPosition) > 270)
             {
                 float angle = Vector2.Zero.GetDegreesFromPosition(newPosition);
-                newPosition = SentakkiExtensions.GetCircularPosition(250, angle);
+                newPosition = SentakkiExtensions.GetCircularPosition(270, angle);
             }
 
             HitObject.Position = newPosition;

osu.Game.Rulesets.Sentakki/Objects/Slide.cs

@@ -26,6 +26,14 @@ public double Duration
             }
             set
             {
+                if (Duration == 0)
+                {
+                    foreach (var slide in SlideInfoList)
+                        slide.Duration = value;
+
+                    return;
+                }
+
                 double ratio = value / Duration;
 
                 foreach (var slide in SlideInfoList)