38 lines
1.4 KiB
C#
38 lines
1.4 KiB
C#
using System.Collections.Generic;
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namespace EscapeRoomEngine.Engine.Runtime.Utilities
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{
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public enum Orientation
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{
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North = 0, East = 90, South = 180, West = 270
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}
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public static class OrientationExtensions
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{
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public static HashSet<Orientation> EveryOrientation() => new(new[]
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{
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Orientation.North, Orientation.East, Orientation.South, Orientation.West
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});
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/// <summary>
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/// Return the orientation corresponding to an angle, starting at 0 degrees North and going clockwise around the compass.
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/// </summary>
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public static Orientation FromAngle(int angle) => (Orientation)angle;
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/// <summary>
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/// Turn an orientation into its corresponding angle.
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/// </summary>
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public static float Angle(this Orientation orientation) => (float)orientation;
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/// <summary>
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/// Turn an orientation into its corresponding angle.
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/// </summary>
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public static int AngleInt(this Orientation orientation) => (int)orientation;
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/// <summary>
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/// Rotate an orientation by a specific amount of quarter rotations. Rotating <c>East</c> thrice would return <c>North</c>.
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/// </summary>
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public static Orientation Rotated(this Orientation orientation, int quarterRotations) =>
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orientation + quarterRotations * 90;
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}
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} |