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Merge pull request #6528 from smoogipoo/fix-mania-selection-movement 

Fix mania hitobject selections not moving correctly
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Dean Herbert 2019-10-18 16:28:04 +09:00 committed by GitHub
parent 99ea45da41 c4cc960e15
commit e3740fbc77
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 13 additions and 10 deletions
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23
osu.Game.Rulesets.Mania/Edit/ManiaSelectionHandler.cs
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@ -65,24 +65,27 @@ private void adjustOrigins(ManiaSelectionBlueprint reference)
private void performDragMovement(MoveSelectionEvent moveEvent)
{
float delta = moveEvent.InstantDelta.Y;
// When scrolling downwards the anchor position is at the bottom of the screen, however the movement event assumes the anchor is at the top of the screen.
// This causes the delta to assume a positive hitobject position, and which can be corrected for by subtracting the parent height.
if (scrollingInfo.Direction.Value == ScrollingDirection.Down)
delta -= moveEvent.Blueprint.HitObject.Parent.DrawHeight;
foreach (var b in SelectedBlueprints)
{
var hitObject = b.HitObject;
var objectParent = (HitObjectContainer)hitObject.Parent;
// Using the hitobject position is required since AdjustPosition can be invoked multiple times per frame
// without the position having been updated by the parenting ScrollingHitObjectContainer
hitObject.Y += moveEvent.InstantDelta.Y;
// StartTime could be used to adjust the position if only one movement event was received per frame.
// However this is not the case and ScrollingHitObjectContainer performs movement in UpdateAfterChildren() so the position must also be updated to be valid for further movement events
hitObject.Y += delta;
float targetPosition;
float targetPosition = hitObject.Position.Y;
// If we're scrolling downwards, a position of 0 is actually further away from the hit target
// so we need to flip the vertical coordinate in the hitobject container's space
// The scrolling algorithm always assumes an anchor at the top of the screen, so the position must be flipped when scrolling downwards to reflect a top anchor
if (scrollingInfo.Direction.Value == ScrollingDirection.Down)
targetPosition = -hitObject.Position.Y;
else
targetPosition = hitObject.Position.Y;
targetPosition = -targetPosition;
objectParent.Remove(hitObject);