public override bool HandleFlip(Direction direction, bool flipOverOrigin)
{
if (SelectedItems.Count == 0)
{
return(false);
}
// This could be implemented in the future if there's a requirement for it.
if (direction == Direction.Vertical)
{
return(false);
}
var selectionRange = CatchHitObjectUtils.GetPositionRange(SelectedItems);
bool changed = false;
EditorBeatmap.PerformOnSelection(h =>
{
if (h is CatchHitObject catchObject)
{
changed |= handleFlip(selectionRange, catchObject, flipOverOrigin);
}
});
return(changed);
}
protected override void OnSelectionChanged()
{
base.OnSelectionChanged();
var selectionRange = CatchHitObjectUtils.GetPositionRange(SelectedItems);
SelectionBox.CanFlipX = selectionRange.Length > 0 && SelectedItems.Any(h => h is CatchHitObject && !(h is BananaShower));
SelectionBox.CanReverse = SelectedItems.Count > 1 || SelectedItems.Any(h => h is JuiceStream);
}
public override bool HandleFlip(Direction direction)
{
var selectionRange = CatchHitObjectUtils.GetPositionRange(SelectedItems);
bool changed = false;
EditorBeatmap.PerformOnSelection(h =>
{
if (h is CatchHitObject catchObject)
{
changed |= handleFlip(selectionRange, catchObject);
}
});
return(changed);
}
/// <summary>
/// Limit positional movement of the objects by the constraint that moved objects should stay in bounds.
/// </summary>
/// <param name="deltaX">The positional movement.</param>
/// <param name="movingObjects">The objects to be moved.</param>
/// <returns>The positional movement with the restriction applied.</returns>
private float limitMovement(float deltaX, IEnumerable <HitObject> movingObjects)
{
var range = CatchHitObjectUtils.GetPositionRange(movingObjects);
// To make an object with position `x` stay in bounds after `deltaX` movement, `0 <= x + deltaX <= WIDTH` should be satisfied.
// Subtracting `x`, we get `-x <= deltaX <= WIDTH - x`.
// We only need to apply the inequality to extreme values of `x`.
float lowerBound = -range.Min;
float upperBound = CatchPlayfield.WIDTH - range.Max;
// The inequality may be unsatisfiable if the objects were already out of bounds.
// In that case, don't move objects at all.
if (lowerBound > upperBound)
{
return(0);
}
return(Math.Clamp(deltaX, lowerBound, upperBound));
}
