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Wojtek Figat
189
Source/Engine/Core/Math/Half4.cs
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189
Source/Engine/Core/Math/Half4.cs
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// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
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// -----------------------------------------------------------------------------
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// Original code from SharpDX project. https://github.com/sharpdx/SharpDX/
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// Greetings to Alexandre Mutel. Original code published with the following license:
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// -----------------------------------------------------------------------------
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//
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// Copyright (c) 2010-2011 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Runtime.InteropServices;
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namespace FlaxEngine
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{
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/// <summary>
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/// Defines a four component vector, using half precision floating point coordinates.
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/// </summary>
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[Serializable]
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[StructLayout(LayoutKind.Sequential, Pack = 2)]
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public struct Half4 : IEquatable<Half4>
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{
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/// <summary>
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/// Gets or sets the X component of the vector.
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/// </summary>
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/// <value>The X component of the vector.</value>
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public Half X;
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/// <summary>
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/// Gets or sets the Y component of the vector.
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/// </summary>
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/// <value>The Y component of the vector.</value>
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public Half Y;
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/// <summary>
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/// Gets or sets the Z component of the vector.
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/// </summary>
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/// <value>The Z component of the vector.</value>
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public Half Z;
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/// <summary>
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/// Gets or sets the W component of the vector.
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/// </summary>
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/// <value>The W component of the vector.</value>
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public Half W;
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/// <summary>
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/// Initializes a new instance of the <see cref="T:FlaxEngine.Half4" /> structure.
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/// </summary>
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/// <param name="x">The X component.</param>
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/// <param name="y">The Y component.</param>
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/// <param name="z">The Z component.</param>
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/// <param name="w">The W component.</param>
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public Half4(Half x, Half y, Half z, Half w)
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{
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X = x;
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Y = y;
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Z = z;
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W = w;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="T:FlaxEngine.Half4" /> structure.
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/// </summary>
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/// <param name="value">The value to set for the X, Y, Z, and W components.</param>
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public Half4(Half value)
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{
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X = value;
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Y = value;
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Z = value;
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W = value;
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}
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/// <summary>
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/// Tests for equality between two objects.
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/// </summary>
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/// <param name="left">The first value to compare.</param>
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/// <param name="right">The second value to compare.</param>
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/// <returns>
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/// <c>true</c> if <paramref name="left" /> has the same value as <paramref name="right" />; otherwise, <c>false</c>.</returns>
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public static bool operator ==(Half4 left, Half4 right)
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{
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return Equals(ref left, ref right);
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}
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/// <summary>
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/// Tests for inequality between two objects.
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/// </summary>
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/// <param name="left">The first value to compare.</param>
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/// <param name="right">The second value to compare.</param>
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/// <returns>
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/// <c>true</c> if <paramref name="left" /> has a different value than <paramref name="right" />; otherwise, <c>false</c>.</returns>
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public static bool operator !=(Half4 left, Half4 right)
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{
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return !Equals(ref left, ref right);
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}
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/// <summary>
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/// Returns the hash code for this instance.
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/// </summary>
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/// <returns>A 32-bit signed integer hash code.</returns>
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public override int GetHashCode()
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{
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int num2 = W.GetHashCode() + Z.GetHashCode();
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int num = Y.GetHashCode() + num2;
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return (X.GetHashCode() + num);
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}
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/// <summary>
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/// Determines whether the specified object instances are considered equal.
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/// </summary>
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/// <param name="value1" />
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/// <param name="value2" />
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/// <returns>
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/// <c>true</c> if <paramref name="value1" /> is the same instance as <paramref name="value2" /> or
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/// if both are <c>null</c> references or if <c>value1.Equals(value2)</c> returns <c>true</c>; otherwise, <c>false</c>.</returns>
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public static bool Equals(ref Half4 value1, ref Half4 value2)
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{
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return (((value1.X == value2.X) && (value1.Y == value2.Y)) && ((value1.Z == value2.Z) && (value1.W == value2.W)));
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}
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/// <summary>
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/// Returns a value that indicates whether the current instance is equal to the specified object.
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/// </summary>
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/// <param name="other">Object to make the comparison with.</param>
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/// <returns>
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/// <c>true</c> if the current instance is equal to the specified object; <c>false</c> otherwise.</returns>
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public bool Equals(Half4 other)
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{
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return (((X == other.X) && (Y == other.Y)) && ((Z == other.Z) && (W == other.W)));
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}
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/// <summary>
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/// Performs an explicit conversion from <see cref="Vector4"/> to <see cref="Half4"/>.
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/// </summary>
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/// <param name="value">The value.</param>
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/// <returns>The result of the conversion.</returns>
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public static explicit operator Half4(Vector4 value)
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{
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return new Half4((Half)value.X, (Half)value.Y, (Half)value.Z, (Half)value.W);
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}
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/// <summary>
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/// Performs an explicit conversion from <see cref="Vector4"/> to <see cref="Half4"/>.
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/// </summary>
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/// <param name="value">The value.</param>
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/// <returns>The result of the conversion.</returns>
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public static explicit operator Vector4(Half4 value)
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{
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return new Vector4(value.X, value.Y, value.Z, value.W);
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}
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/// <summary>
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/// Returns a value that indicates whether the current instance is equal to a specified object.
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/// </summary>
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/// <param name="obj">Object to make the comparison with.</param>
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/// <returns>
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/// <c>true</c> if the current instance is equal to the specified object; <c>false</c> otherwise.</returns>
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public override bool Equals(object obj)
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{
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if (obj == null)
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{
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return false;
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}
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if (obj.GetType() != GetType())
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{
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return false;
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}
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return Equals((Half4)obj);
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}
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}
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}
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