diff --git a/osu.Game.Rulesets.Osu/Edit/OsuSelectionScaleHandler.cs b/osu.Game.Rulesets.Osu/Edit/OsuSelectionScaleHandler.cs index cfcf90e5f5..2cf5a604ed 100644 --- a/osu.Game.Rulesets.Osu/Edit/OsuSelectionScaleHandler.cs +++ b/osu.Game.Rulesets.Osu/Edit/OsuSelectionScaleHandler.cs @@ -194,7 +194,7 @@ namespace osu.Game.Rulesets.Osu.Edit /// /// Clamp scale for multi-object-scaling where selection does not exceed playfield bounds or flip. - /// + /// The origin from which the scale operation is performed /// The scale to be clamped /// The axes to adjust the scale in. @@ -215,54 +215,34 @@ namespace osu.Game.Rulesets.Osu.Edit Vector2 actualOrigin = origin ?? defaultOrigin.Value; var selectionQuad = OriginalSurroundingQuad.Value; - scale = clampToBound(scale, selectionQuad.BottomRight, OsuPlayfield.BASE_SIZE.X, Axes.X); - scale = clampToBound(scale, selectionQuad.BottomRight, OsuPlayfield.BASE_SIZE.Y, Axes.Y); - scale = clampToBound(scale, selectionQuad.TopLeft, 0, Axes.X); - scale = clampToBound(scale, selectionQuad.TopLeft, 0, Axes.Y); + scale = clampToBound(scale, selectionQuad.BottomRight, OsuPlayfield.BASE_SIZE); + scale = clampToBound(scale, selectionQuad.TopLeft, Vector2.Zero); return Vector2.ComponentMax(scale, new Vector2(Precision.FLOAT_EPSILON)); - Vector2 clampToBound(Vector2 s, Vector2 p, float bound, Axes axis) + float minPositiveComponent(Vector2 v) => MathF.Min(v.X < 0 ? float.PositiveInfinity : v.X, v.Y < 0 ? float.PositiveInfinity : v.Y); + + Vector2 clampToBound(Vector2 s, Vector2 p, Vector2 bound) { - float px = p.X - actualOrigin.X; - float py = p.Y - actualOrigin.Y; - float c = axis == Axes.X ? bound - actualOrigin.X : bound - actualOrigin.Y; + p -= actualOrigin; + bound -= actualOrigin; float cos = MathF.Cos(float.DegreesToRadians(-axisRotation)); float sin = MathF.Sin(float.DegreesToRadians(-axisRotation)); - float a, b; - - if (axis == Axes.X) - { - a = cos * cos * px - sin * cos * py; - b = sin * sin * px + sin * cos * py; - } - else - { - a = -sin * cos * px + sin * sin * py; - b = sin * cos * px + cos * cos * py; - } + var a = new Vector2(cos * cos * p.X - sin * cos * p.Y, -sin * cos * p.X + sin * sin * p.Y); + var b = new Vector2(sin * sin * p.X + sin * cos * p.Y, sin * cos * p.X + cos * cos * p.Y); switch (adjustAxis) { case Axes.X: - if (Precision.AlmostEquals(a, 0) || (c - b) / a < 0) - break; - - s.X = MathF.Min(scale.X, (c - b) / a); + s.X = MathF.Min(scale.X, minPositiveComponent(Vector2.Divide(bound - b, a))); break; case Axes.Y: - if (Precision.AlmostEquals(b, 0) || (c - a) / b < 0) - break; - - s.Y = MathF.Min(scale.Y, (c - a) / b); + s.Y = MathF.Min(scale.Y, minPositiveComponent(Vector2.Divide(bound - a, b))); break; case Axes.Both: - if (Precision.AlmostEquals(a + b, 0) || c / (a * s.X + b * s.Y) < 0) - break; - - s = Vector2.ComponentMin(s, s * c / (a * s.X + b * s.Y)); + s = Vector2.ComponentMin(s, s * minPositiveComponent(Vector2.Divide(bound, a * s.X + b * s.Y))); break; }