190 lines
7.3 KiB
C#
190 lines
7.3 KiB
C#
// Copyright (c) Xenko contributors (https://xenko.com) and Silicon Studio Corp. (https://www.siliconstudio.co.jp)
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// Distributed under the MIT license. See the LICENSE.md file in the project root for more information.
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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.ComponentModel;
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using System.Runtime.InteropServices;
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using System.Runtime.Serialization;
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namespace math
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{
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/// <summary>
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/// Represents a two dimensional mathematical vector with half-precision floats.
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/// </summary>
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[DataContract]
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[StructLayout(LayoutKind.Sequential, Pack = 2)]
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public struct Half2 : IEquatable<Half2>
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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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/// Initializes a new instance of the <see cref="Half2"/> 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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public Half2(Half x, Half y)
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{
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this.X = x;
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this.Y = y;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="Half2"/> structure.
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/// </summary>
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/// <param name="value">The value to set for both the X and Y components.</param>
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public Half2(Half value)
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{
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this.X = value;
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this.Y = value;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="Half2"/> 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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public Half2(float x, float y)
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{
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this.X = (Half)x;
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this.Y = (Half)y;
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="Half2"/> structure.
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/// </summary>
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/// <param name="value">The value to set for both the X and Y components.</param>
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public Half2(float value)
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{
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this.X = (Half)value;
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this.Y = (Half)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 ==(Half2 left, Half2 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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[return: MarshalAs(UnmanagedType.U1)]
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public static bool operator !=(Half2 left, Half2 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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return (this.Y.GetHashCode() + this.X.GetHashCode());
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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">The first value.</param>
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/// <param name="value2">The second value.</param>
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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 Half2 value1, ref Half2 value2)
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{
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return ((value1.X == value2.X) && (value1.Y == value2.Y));
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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(Half2 other)
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{
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return ((this.X == other.X) && (this.Y == other.Y));
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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 this.Equals((Half2)obj);
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}
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/// <summary>
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/// Performs an explicit conversion from <see cref="Vec2"/> to <see cref="Half2"/>.
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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 Half2(Vec2 value)
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{
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return new Half2((Half)value.X, (Half)value.Y);
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}
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/// <summary>
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/// Performs an explicit conversion from <see cref="Half2"/> to <see cref="Vec2"/>.
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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 Vec2(Half2 value)
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{
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return new Vec2(value.X, value.Y);
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}
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}
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}
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