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Add basic osu! object to object snapping

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This commit is contained in:
Dean Herbert 2020-09-24 14:22:18 +09:00
parent 6ebea3f6f2
commit 44be0ab762
2 changed files with 42 additions and 1 deletions
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41
osu.Game.Rulesets.Osu/Edit/OsuHitObjectComposer.cs
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@ -15,6 +15,7 @@ using osu.Game.Rulesets.Edit.Tools;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Osu.Objects;
using osu.Game.Rulesets.UI;
using osu.Game.Screens.Edit.Compose.Components;
@ -94,6 +95,10 @@ namespace osu.Game.Rulesets.Osu.Edit
public override SnapResult SnapScreenSpacePositionToValidTime(Vector2 screenSpacePosition)
{
if (snapToVisibleBlueprints(screenSpacePosition, out var snapResult))
return snapResult;
// will be null if distance snap is disabled or not feasible for the current time value.
if (distanceSnapGrid == null)
return base.SnapScreenSpacePositionToValidTime(screenSpacePosition);
@ -102,6 +107,42 @@ namespace osu.Game.Rulesets.Osu.Edit
return new SnapResult(distanceSnapGrid.ToScreenSpace(pos), time, PlayfieldAtScreenSpacePosition(screenSpacePosition));
}
private bool snapToVisibleBlueprints(Vector2 screenSpacePosition, out SnapResult snapResult)
{
// check other on-screen objects for snapping/stacking
var blueprints = BlueprintContainer.SelectionBlueprints.AliveChildren;
var playfield = PlayfieldAtScreenSpacePosition(screenSpacePosition);
float snapRadius =
playfield.GamefieldToScreenSpace(new Vector2(OsuHitObject.OBJECT_RADIUS / 5)).X -
playfield.GamefieldToScreenSpace(Vector2.Zero).X;
foreach (var b in blueprints)
{
if (b.IsSelected)
continue;
var hitObject = b.HitObject;
Vector2 startPos = ((IHasPosition)hitObject).Position;
Vector2 objectScreenPos = playfield.GamefieldToScreenSpace(startPos);
if (Vector2.Distance(objectScreenPos, screenSpacePosition) < snapRadius)
{
// bypasses time snapping
{
snapResult = new SnapResult(objectScreenPos, null, playfield);
return true;
}
}
}
snapResult = null;
return false;
}
private void updateDistanceSnapGrid()
{
distanceSnapGridContainer.Clear();

2
osu.Game/Screens/Edit/Compose/Components/BlueprintContainer.cs
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@ -30,7 +30,7 @@ namespace osu.Game.Screens.Edit.Compose.Components
{
protected DragBox DragBox { get; private set; }
protected Container<SelectionBlueprint> SelectionBlueprints { get; private set; }
public Container<SelectionBlueprint> SelectionBlueprints { get; private set; }
private SelectionHandler selectionHandler;