29 lines
671 B
C#
29 lines
671 B
C#
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using Godot;
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public static class IOrbitExtensions
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{
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public static void Draw(this IOrbit orbit, ImmediateGeometry geo)
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{
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geo.Clear();
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geo.Begin(Mesh.PrimitiveType.LineLoop);
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geo.SetColor(new Color(1, 0, 0));
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int steps = 100;
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var ellipse = orbit.Ellipse;
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for (int i = 0; i < steps; i++)
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{
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float t = i / (float)steps;
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float a = t * Mathf.Tau;
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var v2 = ellipse.Foci[0] + ellipse.GetPosition(a);
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geo.AddVertex(new Godot.Vector3
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{
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x = (float)v2.X,
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z = (float)v2.Y
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});
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}
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geo.End();
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}
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}
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