Fix placement blueprints not receiving latest mouse position with touch input

osu.Game/Screens/Edit/Compose/Components/ComposeBlueprintContainer.cs

@@ -295,8 +295,11 @@ namespace osu.Game.Screens.Edit.Compose.Components
             ensurePlacementCreated();
         }
 
-        private void updatePlacementPosition()
+        private void updatePlacementTimeAndPosition()
         {
+            if (CurrentPlacement == null)
+                return;
+
             var snapResult = Composer.FindSnappedPositionAndTime(InputManager.CurrentState.Mouse.Position, CurrentPlacement.SnapType);
 
             // if no time was found from positional snapping, we should still quantize to the beat.
@@ -329,8 +332,15 @@ namespace osu.Game.Screens.Edit.Compose.Components
             if (Composer.CursorInPlacementArea)
                 ensurePlacementCreated();
 
-            if (CurrentPlacement != null)
+            // updates the placement with the latest editor clock time.
-                updatePlacementPosition();
+            updatePlacementTimeAndPosition();
+        }
+
+        protected override bool OnMouseMove(MouseMoveEvent e)
+        {
+            // updates the placement with the latest mouse position.
+            updatePlacementTimeAndPosition();
+            return base.OnMouseMove(e);
         }
 
         protected sealed override SelectionBlueprint<HitObject> CreateBlueprintFor(HitObject item)
@@ -367,7 +377,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
                 placementBlueprintContainer.Child = CurrentPlacement = blueprint;
 
                 // Fixes a 1-frame position discrepancy due to the first mouse move event happening in the next frame
-                updatePlacementPosition();
+                updatePlacementTimeAndPosition();
 
                 updatePlacementSamples();
 

osu.Game/Tests/Visual/PlacementBlueprintTestScene.cs

@@ -3,9 +3,11 @@
 
 #nullable disable
 
+using System;
 using osu.Framework.Allocation;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
+using osu.Framework.Input.Events;
 using osu.Framework.Timing;
 using osu.Game.Beatmaps;
 using osu.Game.Rulesets.Edit;
@@ -24,6 +26,10 @@ namespace osu.Game.Tests.Visual
         protected PlacementBlueprintTestScene()
         {
             base.Content.Add(HitObjectContainer = CreateHitObjectContainer().With(c => c.Clock = new FramedClock(new StopwatchClock())));
+            base.Content.Add(new MouseMovementInterceptor
+            {
+                MouseMoved = updatePlacementTimeAndPosition,
+            });
         }
 
         protected override IReadOnlyDependencyContainer CreateChildDependencies(IReadOnlyDependencyContainer parent)
@@ -83,10 +89,11 @@ namespace osu.Game.Tests.Visual
         protected override void Update()
         {
             base.Update();
-
+            updatePlacementTimeAndPosition();
-            CurrentBlueprint.UpdateTimeAndPosition(SnapForBlueprint(CurrentBlueprint));
         }
 
+        private void updatePlacementTimeAndPosition() => CurrentBlueprint.UpdateTimeAndPosition(SnapForBlueprint(CurrentBlueprint));
+
         protected virtual SnapResult SnapForBlueprint(HitObjectPlacementBlueprint blueprint) =>
             new SnapResult(InputManager.CurrentState.Mouse.Position, null);
 
@@ -107,5 +114,22 @@ namespace osu.Game.Tests.Visual
 
         protected abstract DrawableHitObject CreateHitObject(HitObject hitObject);
         protected abstract HitObjectPlacementBlueprint CreateBlueprint();
+
+        private partial class MouseMovementInterceptor : Drawable
+        {
+            public Action MouseMoved;
+
+            public MouseMovementInterceptor()
+            {
+                RelativeSizeAxes = Axes.Both;
+                Depth = float.MinValue;
+            }
+
+            protected override bool OnMouseMove(MouseMoveEvent e)
+            {
+                MouseMoved?.Invoke();
+                return base.OnMouseMove(e);
+            }
+        }
     }
 }