public static TweenBuilder2D RotateBy(this TweenBuilder2D builder, double angle) => builder.To(a => builder.Target.Rotation = a, builder.Target.Rotation, builder.Target.Rotation + angle);
public static TweenBuilder2D FadeTo(this TweenBuilder2D builder, double to) => builder.To(a => builder.Target.Alpha = a, builder.Target.Alpha, to);
public static TweenBuilder2D ScaleTo(this TweenBuilder2D builder, IAnimatable2D target) => builder.To(a => builder.Target.Scale = a, builder.Target.Scale, target.Scale);
public static TweenBuilder2D ScaleBy(this TweenBuilder2D builder, double x, double y) => builder.To(a => builder.Target.Scale = a, builder.Target.Scale, new Vector2(builder.Target.Scale.X + x, builder.Target.Scale.Y + y));
public static TweenBuilder2D ScaleTo(this TweenBuilder2D builder, double x, double y) => builder.To(a => builder.Target.Scale = a, builder.Target.Scale, new Vector2(x, y));
public static TweenBuilder2D MoveBy(this TweenBuilder2D builder, double x, double y) => builder.To(a => builder.Target.Position = a, builder.Target.Position, new Vector2(builder.Target.Position.X + x, builder.Target.Position.Y + y));
public static TweenBuilder2D MoveTo(this TweenBuilder2D builder, IAnimatable2D target) => builder.To(a => builder.Target.Position = a, builder.Target.Position, target.Position);
public static TweenBuilder2D MoveTo(this TweenBuilder2D builder, double x, double y) => builder.To(a => builder.Target.Position = a, builder.Target.Position, new Vector2(x, y));
public static TweenBuilder2D FadeOut(this TweenBuilder2D builder) => builder.To(a => builder.Target.Alpha = a, 1.0, 0.0);