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Merge pull request #12866 from peppy/refactor-selection-scale-logic

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Add proper scaling support to skin editor
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Dean Herbert 2021-05-22 20:07:03 +09:00 committed by GitHub
commit 485728ca4e
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3 changed files with 86 additions and 27 deletions
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18
osu.Game.Rulesets.Osu/Edit/OsuSelectionHandler.cs
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@ -225,26 +225,10 @@ namespace osu.Game.Rulesets.Osu.Edit
private void scaleHitObjects(OsuHitObject[] hitObjects, Anchor reference, Vector2 scale)
{
scale = getClampedScale(hitObjects, reference, scale);
// move the selection before scaling if dragging from top or left anchors.
float xOffset = ((reference & Anchor.x0) > 0) ? -scale.X : 0;
float yOffset = ((reference & Anchor.y0) > 0) ? -scale.Y : 0;
Quad selectionQuad = getSurroundingQuad(hitObjects);
foreach (var h in hitObjects)
{
var newPosition = h.Position;
// guard against no-ops and NaN.
if (scale.X != 0 && selectionQuad.Width > 0)
newPosition.X = selectionQuad.TopLeft.X + xOffset + (h.X - selectionQuad.TopLeft.X) / selectionQuad.Width * (selectionQuad.Width + scale.X);
if (scale.Y != 0 && selectionQuad.Height > 0)
newPosition.Y = selectionQuad.TopLeft.Y + yOffset + (h.Y - selectionQuad.TopLeft.Y) / selectionQuad.Height * (selectionQuad.Height + scale.Y);
h.Position = newPosition;
}
h.Position = GetScaledPosition(reference, scale, selectionQuad, h.Position);
}
private (bool X, bool Y) isQuadInBounds(Quad quad)

20
osu.Game/Screens/Edit/Compose/Components/SelectionHandler.cs
View File

@ -375,6 +375,26 @@ namespace osu.Game.Screens.Edit.Compose.Components
return position;
}
/// <summary>
/// Given a scale vector, a surrounding quad for all selected objects, and a position,
/// will return the scaled position in screen space coordinates.
/// </summary>
protected static Vector2 GetScaledPosition(Anchor reference, Vector2 scale, Quad selectionQuad, Vector2 position)
{
// adjust the direction of scale depending on which side the user is dragging.
float xOffset = ((reference & Anchor.x0) > 0) ? -scale.X : 0;
float yOffset = ((reference & Anchor.y0) > 0) ? -scale.Y : 0;
// guard against no-ops and NaN.
if (scale.X != 0 && selectionQuad.Width > 0)
position.X = selectionQuad.TopLeft.X + xOffset + (position.X - selectionQuad.TopLeft.X) / selectionQuad.Width * (selectionQuad.Width + scale.X);
if (scale.Y != 0 && selectionQuad.Height > 0)
position.Y = selectionQuad.TopLeft.Y + yOffset + (position.Y - selectionQuad.TopLeft.Y) / selectionQuad.Height * (selectionQuad.Height + scale.Y);
return position;
}
/// <summary>
/// Returns a quad surrounding the provided points.
/// </summary>

75
osu.Game/Skinning/Editor/SkinSelectionHandler.cs
View File

@ -8,6 +8,7 @@ using osu.Framework.Allocation;
using osu.Framework.Extensions.EnumExtensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.UserInterface;
using osu.Framework.Utils;
using osu.Game.Extensions;
using osu.Game.Graphics.UserInterface;
using osu.Game.Rulesets.Edit;
@ -32,11 +33,72 @@ namespace osu.Game.Skinning.Editor
public override bool HandleScale(Vector2 scale, Anchor anchor)
{
// convert scale to screen space
scale = ToScreenSpace(scale) - ToScreenSpace(Vector2.Zero);
adjustScaleFromAnchor(ref scale, anchor);
foreach (var c in SelectedBlueprints)
// TODO: this is temporary and will be fixed with a separate refactor of selection transform logic.
((Drawable)c.Item).Scale += scale * 0.02f;
// the selection quad is always upright, so use an AABB rect to make mutating the values easier.
var selectionRect = GetSurroundingQuad(SelectedBlueprints.SelectMany(b =>
b.Item.ScreenSpaceDrawQuad.GetVertices().ToArray())).AABBFloat;
// copy to mutate, as we will need to compare to the original later on.
var adjustedRect = selectionRect;
// first, remove any scale axis we are not interested in.
if (anchor.HasFlagFast(Anchor.x1)) scale.X = 0;
if (anchor.HasFlagFast(Anchor.y1)) scale.Y = 0;
bool shouldAspectLock =
// for now aspect lock scale adjustments that occur at corners..
(!anchor.HasFlagFast(Anchor.x1) && !anchor.HasFlagFast(Anchor.y1))
// ..or if any of the selection have been rotated.
// this is to avoid requiring skew logic (which would likely not be the user's expected transform anyway).
|| SelectedBlueprints.Any(b => !Precision.AlmostEquals(((Drawable)b.Item).Rotation, 0));
if (shouldAspectLock)
{
if (anchor.HasFlagFast(Anchor.x1))
// if dragging from the horizontal centre, only a vertical component is available.
scale.X = scale.Y / selectionRect.Height * selectionRect.Width;
else
// in all other cases (arbitrarily) use the horizontal component for aspect lock.
scale.Y = scale.X / selectionRect.Width * selectionRect.Height;
}
if (anchor.HasFlagFast(Anchor.x0)) adjustedRect.X -= scale.X;
if (anchor.HasFlagFast(Anchor.y0)) adjustedRect.Y -= scale.Y;
adjustedRect.Width += scale.X;
adjustedRect.Height += scale.Y;
// scale adjust applied to each individual item should match that of the quad itself.
var scaledDelta = new Vector2(
adjustedRect.Width / selectionRect.Width,
adjustedRect.Height / selectionRect.Height
);
foreach (var b in SelectedBlueprints)
{
var drawableItem = (Drawable)b.Item;
// each drawable's relative position should be maintained in the scaled quad.
var screenPosition = b.ScreenSpaceSelectionPoint;
var relativePositionInOriginal =
new Vector2(
(screenPosition.X - selectionRect.TopLeft.X) / selectionRect.Width,
(screenPosition.Y - selectionRect.TopLeft.Y) / selectionRect.Height
);
var newPositionInAdjusted = new Vector2(
adjustedRect.TopLeft.X + adjustedRect.Width * relativePositionInOriginal.X,
adjustedRect.TopLeft.Y + adjustedRect.Height * relativePositionInOriginal.Y
);
drawableItem.Position = drawableItem.Parent.ToLocalSpace(newPositionInAdjusted) - drawableItem.AnchorPosition;
drawableItem.Scale *= scaledDelta;
}
return true;
}
@ -158,13 +220,6 @@ namespace osu.Game.Skinning.Editor
// reverse the scale direction if dragging from top or left.
if ((reference & Anchor.x0) > 0) scale.X = -scale.X;
if ((reference & Anchor.y0) > 0) scale.Y = -scale.Y;
// for now aspect lock scale adjustments that occur at corners.
if (!reference.HasFlagFast(Anchor.x1) && !reference.HasFlagFast(Anchor.y1))
{
// TODO: temporary implementation - only dragging the corner handles across the X axis changes size.
scale.Y = scale.X;
}
}
}
}