44 lines
1.3 KiB
C#
44 lines
1.3 KiB
C#
public static class Neighbor
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{
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public static IEnumerable<Vector2> Get4Neighbors(this Vector2 pos)
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{
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return new[]
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{
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new Vector2(pos.X - 1, pos.Y),
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new Vector2(pos.X + 1, pos.Y),
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new Vector2(pos.X, pos.Y - 1),
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new Vector2(pos.X, pos.Y + 1)
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};
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}
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public static IEnumerable<Vector2> Get8Neighbors(this Vector2 pos)
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{
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return new[]
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{
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new Vector2(pos.X - 1, pos.Y - 1),
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new Vector2(pos.X + 1, pos.Y - 1),
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new Vector2(pos.X - 1, pos.Y + 1),
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new Vector2(pos.X + 1, pos.Y + 1)
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};
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}
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public static IEnumerable<Vector2> Get20Neighbors(this Vector2 pos)
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{
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return new[]
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{
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new Vector2(pos.X - 2, pos.Y),
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new Vector2(pos.X + 2, pos.Y),
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new Vector2(pos.X, pos.Y - 2),
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new Vector2(pos.X, pos.Y + 2),
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new Vector2(pos.X - 2, pos.Y +1),
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new Vector2(pos.X + 2, pos.Y +1),
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new Vector2(pos.X - 2, pos.Y -1),
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new Vector2(pos.X + 2, pos.Y -1),
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new Vector2(pos.X - 1, pos.Y +2),
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new Vector2(pos.X + 1, pos.Y +2),
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new Vector2(pos.X - 1, pos.Y -2),
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new Vector2(pos.X + 1, pos.Y -2),
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};
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}
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}
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