protected override void Update()
{
base.Update();
// Move the rectangle to cover the hitobjects
var topLeft = new Vector2(float.MaxValue, float.MaxValue);
var bottomRight = new Vector2(float.MinValue, float.MinValue);
topLeft = Vector2Extensions.ComponentMin(topLeft, Parent.ToLocalSpace(DrawableObject.ScreenSpaceDrawQuad.TopLeft));
bottomRight = Vector2Extensions.ComponentMax(bottomRight, Parent.ToLocalSpace(DrawableObject.ScreenSpaceDrawQuad.BottomRight));
Size = bottomRight - topLeft;
Position = topLeft;
}
/// <summary>
/// Returns a quad surrounding the provided points.
/// </summary>
/// <param name="points">The points to calculate a quad for.</param>
protected static Quad GetSurroundingQuad(IEnumerable <Vector2> points)
{
if (!points.Any())
{
return(new Quad());
}
Vector2 minPosition = new Vector2(float.MaxValue, float.MaxValue);
Vector2 maxPosition = new Vector2(float.MinValue, float.MinValue);
// Go through all hitobjects to make sure they would remain in the bounds of the editor after movement, before any movement is attempted
foreach (var p in points)
{
minPosition = Vector2Extensions.ComponentMin(minPosition, p);
maxPosition = Vector2Extensions.ComponentMax(maxPosition, p);
}
Vector2 size = maxPosition - minPosition;
return(new Quad(minPosition.X, minPosition.Y, size.X, size.Y));
}
