Initial commit: AetherBags + KamiToolKit for FC Gitea

Co-authored-by: Cursor <cursoragent@cursor.com>

KamiToolKit/Classes/Bounds.cs

@@ -0,0 +1,23 @@
+using System.Numerics;
+
+namespace KamiToolKit.Classes;
+
+public class Bounds {
+    public required Vector2 TopLeft { get; set; }
+    public required Vector2 BottomRight { get; set; }
+
+    public float Top => TopLeft.Y;
+    public float Left => TopLeft.X;
+    public float Bottom => BottomRight.Y;
+    public float Right => BottomRight.X;
+
+    public float Width => BottomRight.X - TopLeft.X;
+    public float Height => BottomRight.Y - TopLeft.Y;
+    public Vector2 Size => new(Width, Height);
+
+    public float CenterX => (TopLeft.X + BottomRight.X) / 2.0f;
+    public float CenterY => (TopLeft.Y + BottomRight.Y) / 2.0f;
+    public Vector2 Center => new(CenterX, CenterY);
+
+    public override string ToString() => $"{TopLeft}, {BottomRight}";
+}