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using System; |
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|
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namespace Oni |
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{ |
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internal struct Vector2 : IEquatable<Vector2> |
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{ |
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public float X; |
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public float Y; |
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|
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public Vector2(float x, float y) |
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{ |
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X = x; |
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Y = y; |
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} |
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|
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public Vector2(float all) |
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{ |
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X = all; |
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Y = all; |
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} |
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|
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public static Vector2 operator +(Vector2 v1, Vector2 v2) => new Vector2 |
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{ |
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X = v1.X + v2.X, |
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Y = v1.Y + v2.Y |
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}; |
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public static Vector2 operator -(Vector2 v1, Vector2 v2) => new Vector2 |
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{ |
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X = v1.X - v2.X, |
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Y = v1.Y - v2.Y |
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}; |
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public static float Dot(Vector2 v1, Vector2 v2) => v1.X * v2.X + v1.Y * v2.Y; |
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public static Vector2 Normalize(Vector2 v) => v * (1.0f / v.Length()); |
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public void Normalize() |
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{ |
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float f = 1.0f / Length(); |
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|
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X *= f; |
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Y *= f; |
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} |
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public float Length() => FMath.Sqrt(X * X + Y * Y); |
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public static Vector2 operator *(Vector2 v, float s) |
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{ |
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v.X *= s; |
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v.Y *= s; |
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return v; |
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} |
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public static Vector2 operator *(float s, Vector2 v) |
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{ |
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v.X *= s; |
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v.Y *= s; |
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return v; |
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} |
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public static Vector2 operator /(Vector2 v, float s) => v * (1.0f / s); |
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public static Vector2 Min(Vector2 v1, Vector2 v2) => new Vector2 |
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{ |
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X = (v1.X < v2.X) ? v1.X : v2.X, |
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Y = (v1.Y < v2.Y) ? v1.Y : v2.Y |
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}; |
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public static Vector2 Max(Vector2 v1, Vector2 v2) => new Vector2 |
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{ |
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X = (v1.X > v2.X) ? v1.X : v2.X, |
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Y = (v1.Y > v2.Y) ? v1.Y : v2.Y |
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}; |
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public static bool operator ==(Vector2 v1, Vector2 v2) => v1.X == v2.X && v1.Y == v2.Y; |
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public static bool operator !=(Vector2 v1, Vector2 v2) => v1.X != v2.X || v1.Y != v2.Y; |
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public bool Equals(Vector2 other) => X == other.X && Y == other.Y; |
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public override bool Equals(object obj) => obj is Vector2 && Equals((Vector2)obj); |
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public override int GetHashCode() => X.GetHashCode() ^ Y.GetHashCode(); |
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public override string ToString() => $"{{{X} {Y}}}"; |
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private static Vector2 zero = new Vector2(0.0f, 0.0f); |
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private static Vector2 one = new Vector2(1.0f, 1.0f); |
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private static Vector2 unitX = new Vector2(1.0f, 0.0f); |
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private static Vector2 unitY = new Vector2(0.0f, 1.0f); |
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public static Vector2 Zero => zero; |
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public static Vector2 One => one; |
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public static Vector2 UnitX => unitX; |
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public static Vector2 UnitY => unitY; |
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} |
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} |
