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Avoid using SSDQ for validity computation

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This commit is contained in:
Dean Herbert
2021-09-06 14:09:40 +09:00
parent f76f12d361
commit 458cde832d
2 changed files with 30 additions and 28 deletions
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44
osu.Game/Overlays/Settings/Sections/Input/TabletAreaSelection.cs
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@ -114,29 +114,30 @@ namespace osu.Game.Overlays.Settings.Sections.Input
areaOffset.BindTo(handler.AreaOffset);
areaOffset.BindValueChanged(val =>
{
usableAreaContainer.MoveTo(val.NewValue, 100, Easing.OutQuint)
.OnComplete(_ => checkBounds()); // required as we are using SSDQ.
usableAreaContainer.MoveTo(val.NewValue, 100, Easing.OutQuint);
checkBounds();
}, true);
areaSize.BindTo(handler.AreaSize);
areaSize.BindValueChanged(val =>
{
usableAreaContainer.ResizeTo(val.NewValue, 100, Easing.OutQuint)
.OnComplete(_ => checkBounds()); // required as we are using SSDQ.
usableAreaContainer.ResizeTo(val.NewValue, 100, Easing.OutQuint);
int x = (int)val.NewValue.X;
int y = (int)val.NewValue.Y;
int commonDivider = greatestCommonDivider(x, y);
usableAreaText.Text = $"{(float)x / commonDivider}:{(float)y / commonDivider}";
checkBounds();
}, true);
rotation.BindTo(handler.Rotation);
rotation.BindValueChanged(val =>
{
usableAreaContainer.RotateTo(val.NewValue, 100, Easing.OutQuint)
.OnComplete(_ => checkBounds()); // required as we are using SSDQ.
usableAreaContainer.RotateTo(val.NewValue, 100, Easing.OutQuint);
tabletContainer.RotateTo(-val.NewValue, 800, Easing.OutQuint);
checkBounds();
}, true);
tablet.BindTo(handler.Tablet);
@ -174,22 +175,33 @@ namespace osu.Game.Overlays.Settings.Sections.Input
if (tablet.Value == null)
return;
// All of this manual logic is just to get around floating point issues when doing a contains check on the screen quads.
// This is best effort, as it's only used for display purposes. If we need for anything more, manual math on the raw values should be preferred.
var containerQuad = tabletContainer.ScreenSpaceDrawQuad.AABBFloat.Inflate(1);
var usableAreaQuad = Quad.FromRectangle(usableAreaContainer.ScreenSpaceDrawQuad.AABBFloat);
// allow for some degree of floating point error, as we don't care about being perfect here.
const float lenience = 0.5f;
var tabletArea = new Quad(-lenience, -lenience, tablet.Value.Size.X + lenience * 2, tablet.Value.Size.Y + lenience * 2);
var halfUsableArea = areaSize.Value / 2;
var offset = areaOffset.Value;
var usableAreaQuad = new Quad(
new Vector2(-halfUsableArea.X, -halfUsableArea.Y),
new Vector2(halfUsableArea.X, -halfUsableArea.Y),
new Vector2(-halfUsableArea.X, halfUsableArea.Y),
new Vector2(halfUsableArea.X, halfUsableArea.Y)
);
var matrix = Matrix3.Identity;
MatrixExtensions.TranslateFromLeft(ref matrix, usableAreaQuad.Centre);
MatrixExtensions.TranslateFromLeft(ref matrix, offset);
MatrixExtensions.RotateFromLeft(ref matrix, MathUtils.DegreesToRadians(rotation.Value));
MatrixExtensions.TranslateFromLeft(ref matrix, -usableAreaQuad.Centre);
usableAreaQuad *= matrix;
IsWithinBounds =
containerQuad.Contains(usableAreaQuad.TopLeft) &&
containerQuad.Contains(usableAreaQuad.TopRight) &&
containerQuad.Contains(usableAreaQuad.BottomLeft) &&
containerQuad.Contains(usableAreaQuad.BottomRight);
tabletArea.Contains(usableAreaQuad.TopLeft) &&
tabletArea.Contains(usableAreaQuad.TopRight) &&
tabletArea.Contains(usableAreaQuad.BottomLeft) &&
tabletArea.Contains(usableAreaQuad.BottomRight);
usableFill.FadeColour(IsWithinBounds ? colour.Blue : colour.RedLight, 100);
}