34 lines
1.5 KiB
C#
34 lines
1.5 KiB
C#
using Syntriax.Engine.Core;
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using Syntriax.Engine.Core.Abstract;
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namespace Syntriax.Engine.Physics2D.Primitives;
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public record Circle(Vector2D Center, float Radius)
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{
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public float RadiusSquared => Radius * Radius;
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public float Diameter => 2f * Radius;
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public static Circle SetCenter(Circle circle, Vector2D center) => new(center, circle.Radius);
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public static Circle SetRadius(Circle circle, float radius) => new(circle.Center, radius);
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public static Circle Displace(Circle circle, Vector2D displaceVector) => new(circle.Center + displaceVector, circle.Radius);
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public static Circle TransformCircle(ITransform transform, Circle circle)
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=> new(transform.TransformVector2D(circle.Center), circle.Radius * transform.Scale.Magnitude);
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public static bool ApproximatelyEquals(Circle left, Circle right)
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=> left.Center.ApproximatelyEquals(right.Center) && left.Radius.ApproximatelyEquals(right.Radius);
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}
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public static class CircleExtensions
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{
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public static Circle SetCenter(this Circle circle, Vector2D center) => Circle.SetCenter(circle, center);
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public static Circle SetRadius(this Circle circle, float radius) => Circle.SetRadius(circle, radius);
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public static Circle Displace(this Circle circle, Vector2D displaceVector) => Circle.Displace(circle, displaceVector);
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public static Circle TransformCircle(this ITransform transform, Circle circle) => Circle.TransformCircle(transform, circle);
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public static bool ApproximatelyEquals(this Circle left, Circle right) => Circle.ApproximatelyEquals(left, right);
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}
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