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AABB transform optimization

pull/17/head
cosmonaut 2022-03-21 16:21:31 -07:00
parent d8f9f53dac
commit 8f6334b9fb
1 changed files with 4 additions and 7 deletions
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11
src/Collision/AABB2D.cs
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@ -68,13 +68,10 @@ namespace MoonWorks.Collision
/// <returns></returns> /// <returns></returns>
public static AABB2D Transformed(AABB2D aabb, Transform2D transform) public static AABB2D Transformed(AABB2D aabb, Transform2D transform)
{ {
var center = (aabb.Min + aabb.Max) / 2f; return new AABB2D(
var extent = (aabb.Max - aabb.Min) / 2f; Vector2.Transform(aabb.Min, transform.TransformMatrix),
Vector2.Transform(aabb.Max, transform.TransformMatrix)
var newCenter = Vector2.Transform(center, transform.TransformMatrix); );
var newExtent = Vector2.TransformNormal(extent, AbsoluteMatrix(transform.TransformMatrix));
return new AABB2D(newCenter - newExtent, newCenter + newExtent);
} }
/// <summary> /// <summary>