673 lines
27 KiB
C#
673 lines
27 KiB
C#
// Copyright (c) 2010-2014 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.Globalization;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using SharpDX.Mathematics.Interop;
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namespace SharpDX
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{
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/// <summary>
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/// Represents a three dimensional mathematical int vector.
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/// </summary>
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[StructLayout(LayoutKind.Sequential, Pack = 4)]
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public struct Int3 : IEquatable<Int3>, IFormattable
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{
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/// <summary>
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/// The size of the <see cref = "Int3" /> type, in bytes.
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/// </summary>
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public static readonly int SizeInBytes = Utilities.SizeOf<Int3>();
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/// <summary>
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/// A <see cref = "Int3" /> with all of its components set to zero.
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/// </summary>
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public static readonly Int3 Zero = new Int3();
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/// <summary>
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/// The X unit <see cref = "Int3" /> (1, 0, 0).
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/// </summary>
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public static readonly Int3 UnitX = new Int3(1, 0, 0);
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/// <summary>
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/// The Y unit <see cref = "Int3" /> (0, 1, 0).
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/// </summary>
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public static readonly Int3 UnitY = new Int3(0, 1, 0);
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/// <summary>
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/// The Z unit <see cref = "Int3" /> (0, 0, 1).
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/// </summary>
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public static readonly Int3 UnitZ = new Int3(0, 0, 1);
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/// <summary>
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/// A <see cref = "Int3" /> with all of its components set to one.
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/// </summary>
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public static readonly Int3 One = new Int3(1, 1, 1);
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/// <summary>
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/// The X component of the vector.
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/// </summary>
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public int X;
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/// <summary>
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/// The Y component of the vector.
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/// </summary>
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public int Y;
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/// <summary>
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/// The Z component of the vector.
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/// </summary>
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public int Z;
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/// <summary>
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/// Initializes a new instance of the <see cref = "Int3" /> struct.
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/// </summary>
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/// <param name = "value">The value that will be assigned to all components.</param>
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public Int3(int 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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}
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/// <summary>
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/// Initializes a new instance of the <see cref = "Int3" /> struct.
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/// </summary>
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/// <param name = "x">Initial value for the X component of the vector.</param>
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/// <param name = "y">Initial value for the Y component of the vector.</param>
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/// <param name = "z">Initial value for the Z component of the vector.</param>
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public Int3(int x, int y, int z)
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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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}
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/// <summary>
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/// Initializes a new instance of the <see cref = "Int3" /> struct.
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/// </summary>
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/// <param name = "values">The values to assign to the X, Y, Z, and W components of the vector. This must be an array with four elements.</param>
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/// <exception cref = "ArgumentNullException">Thrown when <paramref name = "values" /> is <c>null</c>.</exception>
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/// <exception cref = "ArgumentOutOfRangeException">Thrown when <paramref name = "values" /> contains more or less than four elements.</exception>
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public Int3(int[] values)
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{
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if (values == null)
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throw new ArgumentNullException("values");
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if (values.Length != 3)
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throw new ArgumentOutOfRangeException("values",
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"There must be three and only three input values for Int3.");
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X = values[0];
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Y = values[1];
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Z = values[2];
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}
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/// <summary>
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/// Gets or sets the component at the specified index.
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/// </summary>
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/// <value>The value of the X, Y, Z, or W component, depending on the index.</value>
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/// <param name = "index">The index of the component to access. Use 0 for the X component, 1 for the Y component, 2 for the Z component, and 3 for the W component.</param>
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/// <returns>The value of the component at the specified index.</returns>
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/// <exception cref = "System.ArgumentOutOfRangeException">Thrown when the <paramref name = "index" /> is out of the range [0, 3].</exception>
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public int this[int index]
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{
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get
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{
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switch (index)
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{
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case 0:
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return X;
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case 1:
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return Y;
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case 2:
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return Z;
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}
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throw new ArgumentOutOfRangeException("index", "Indices for Int3 run from 0 to 2, inclusive.");
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}
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set
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{
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switch (index)
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{
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case 0:
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X = value;
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break;
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case 1:
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Y = value;
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break;
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case 2:
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Z = value;
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break;
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default:
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throw new ArgumentOutOfRangeException("index", "Indices for Int3 run from 0 to 2, inclusive.");
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}
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}
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}
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/// <summary>
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/// Creates an array containing the elements of the vector.
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/// </summary>
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/// <returns>A four-element array containing the components of the vector.</returns>
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public int[] ToArray()
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{
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return new int[] {X, Y, Z};
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}
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/// <summary>
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/// Adds two vectors.
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/// </summary>
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/// <param name = "left">The first vector to add.</param>
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/// <param name = "right">The second vector to add.</param>
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/// <param name = "result">When the method completes, contains the sum of the two vectors.</param>
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public static void Add(ref Int3 left, ref Int3 right, out Int3 result)
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{
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result = new Int3(left.X + right.X, left.Y + right.Y, left.Z + right.Z);
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}
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/// <summary>
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/// Adds two vectors.
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/// </summary>
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/// <param name = "left">The first vector to add.</param>
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/// <param name = "right">The second vector to add.</param>
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/// <returns>The sum of the two vectors.</returns>
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public static Int3 Add(Int3 left, Int3 right)
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{
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return new Int3(left.X + right.X, left.Y + right.Y, left.Z + right.Z);
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}
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/// <summary>
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/// Subtracts two vectors.
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/// </summary>
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/// <param name = "left">The first vector to subtract.</param>
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/// <param name = "right">The second vector to subtract.</param>
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/// <param name = "result">When the method completes, contains the difference of the two vectors.</param>
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public static void Subtract(ref Int3 left, ref Int3 right, out Int3 result)
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{
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result = new Int3(left.X - right.X, left.Y - right.Y, left.Z - right.Z);
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}
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/// <summary>
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/// Subtracts two vectors.
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/// </summary>
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/// <param name = "left">The first vector to subtract.</param>
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/// <param name = "right">The second vector to subtract.</param>
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/// <returns>The difference of the two vectors.</returns>
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public static Int3 Subtract(Int3 left, Int3 right)
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{
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return new Int3(left.X - right.X, left.Y - right.Y, left.Z - right.Z);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <param name = "result">When the method completes, contains the scaled vector.</param>
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public static void Multiply(ref Int3 value, int scale, out Int3 result)
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{
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result = new Int3(value.X*scale, value.Y*scale, value.Z*scale);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <returns>The scaled vector.</returns>
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public static Int3 Multiply(Int3 value, int scale)
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{
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return new Int3(value.X*scale, value.Y*scale, value.Z*scale);
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}
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/// <summary>
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/// Modulates a vector with another by performing component-wise multiplication.
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/// </summary>
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/// <param name = "left">The first vector to modulate.</param>
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/// <param name = "right">The second vector to modulate.</param>
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/// <param name = "result">When the method completes, contains the modulated vector.</param>
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public static void Modulate(ref Int3 left, ref Int3 right, out Int3 result)
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{
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result = new Int3(left.X*right.X, left.Y*right.Y, left.Z*right.Z);
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}
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/// <summary>
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/// Modulates a vector with another by performing component-wise multiplication.
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/// </summary>
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/// <param name = "left">The first vector to modulate.</param>
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/// <param name = "right">The second vector to modulate.</param>
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/// <returns>The modulated vector.</returns>
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public static Int3 Modulate(Int3 left, Int3 right)
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{
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return new Int3(left.X*right.X, left.Y*right.Y, left.Z*right.Z);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <param name = "result">When the method completes, contains the scaled vector.</param>
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public static void Divide(ref Int3 value, int scale, out Int3 result)
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{
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result = new Int3(value.X/scale, value.Y/scale, value.Z/scale);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <returns>The scaled vector.</returns>
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public static Int3 Divide(Int3 value, int scale)
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{
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return new Int3(value.X/scale, value.Y/scale, value.Z/scale);
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}
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/// <summary>
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/// Reverses the direction of a given vector.
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/// </summary>
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/// <param name = "value">The vector to negate.</param>
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/// <param name = "result">When the method completes, contains a vector facing in the opposite direction.</param>
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public static void Negate(ref Int3 value, out Int3 result)
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{
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result = new Int3(-value.X, -value.Y, -value.Z);
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}
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/// <summary>
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/// Reverses the direction of a given vector.
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/// </summary>
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/// <param name = "value">The vector to negate.</param>
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/// <returns>A vector facing in the opposite direction.</returns>
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public static Int3 Negate(Int3 value)
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{
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return new Int3(-value.X, -value.Y, -value.Z);
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}
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/// <summary>
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/// Restricts a value to be within a specified range.
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/// </summary>
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/// <param name = "value">The value to clamp.</param>
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/// <param name = "min">The minimum value.</param>
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/// <param name = "max">The maximum value.</param>
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/// <param name = "result">When the method completes, contains the clamped value.</param>
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public static void Clamp(ref Int3 value, ref Int3 min, ref Int3 max, out Int3 result)
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{
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int x = value.X;
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x = (x > max.X) ? max.X : x;
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x = (x < min.X) ? min.X : x;
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int y = value.Y;
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y = (y > max.Y) ? max.Y : y;
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y = (y < min.Y) ? min.Y : y;
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int z = value.Z;
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z = (z > max.Z) ? max.Z : z;
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z = (z < min.Z) ? min.Z : z;
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result = new Int3(x, y, z);
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}
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/// <summary>
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/// Restricts a value to be within a specified range.
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/// </summary>
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/// <param name = "value">The value to clamp.</param>
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/// <param name = "min">The minimum value.</param>
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/// <param name = "max">The maximum value.</param>
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/// <returns>The clamped value.</returns>
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public static Int3 Clamp(Int3 value, Int3 min, Int3 max)
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{
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Int3 result;
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Clamp(ref value, ref min, ref max, out result);
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return result;
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}
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/// <summary>
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/// Returns a vector containing the smallest components of the specified vectors.
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/// </summary>
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/// <param name = "left">The first source vector.</param>
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/// <param name = "right">The second source vector.</param>
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/// <param name = "result">When the method completes, contains an new vector composed of the largest components of the source vectors.</param>
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public static void Max(ref Int3 left, ref Int3 right, out Int3 result)
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{
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result.X = (left.X > right.X) ? left.X : right.X;
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result.Y = (left.Y > right.Y) ? left.Y : right.Y;
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result.Z = (left.Z > right.Z) ? left.Z : right.Z;
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}
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/// <summary>
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/// Returns a vector containing the largest components of the specified vectors.
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/// </summary>
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/// <param name = "left">The first source vector.</param>
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/// <param name = "right">The second source vector.</param>
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/// <returns>A vector containing the largest components of the source vectors.</returns>
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public static Int3 Max(Int3 left, Int3 right)
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{
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Int3 result;
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Max(ref left, ref right, out result);
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return result;
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}
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/// <summary>
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/// Returns a vector containing the smallest components of the specified vectors.
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/// </summary>
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/// <param name = "left">The first source vector.</param>
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/// <param name = "right">The second source vector.</param>
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/// <param name = "result">When the method completes, contains an new vector composed of the smallest components of the source vectors.</param>
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public static void Min(ref Int3 left, ref Int3 right, out Int3 result)
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{
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result.X = (left.X < right.X) ? left.X : right.X;
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result.Y = (left.Y < right.Y) ? left.Y : right.Y;
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result.Z = (left.Z < right.Z) ? left.Z : right.Z;
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}
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/// <summary>
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/// Returns a vector containing the smallest components of the specified vectors.
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/// </summary>
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/// <param name = "left">The first source vector.</param>
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/// <param name = "right">The second source vector.</param>
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/// <returns>A vector containing the smallest components of the source vectors.</returns>
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public static Int3 Min(Int3 left, Int3 right)
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{
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Int3 result;
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Min(ref left, ref right, out result);
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return result;
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}
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/// <summary>
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/// Adds two vectors.
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/// </summary>
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/// <param name = "left">The first vector to add.</param>
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/// <param name = "right">The second vector to add.</param>
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/// <returns>The sum of the two vectors.</returns>
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public static Int3 operator +(Int3 left, Int3 right)
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{
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return new Int3(left.X + right.X, left.Y + right.Y, left.Z + right.Z);
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}
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/// <summary>
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/// Assert a vector (return it unchanged).
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/// </summary>
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/// <param name = "value">The vector to assert (unchanged).</param>
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/// <returns>The asserted (unchanged) vector.</returns>
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public static Int3 operator +(Int3 value)
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{
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return value;
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}
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/// <summary>
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/// Subtracts two vectors.
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/// </summary>
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/// <param name = "left">The first vector to subtract.</param>
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/// <param name = "right">The second vector to subtract.</param>
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/// <returns>The difference of the two vectors.</returns>
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public static Int3 operator -(Int3 left, Int3 right)
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{
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return new Int3(left.X - right.X, left.Y - right.Y, left.Z - right.Z);
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}
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/// <summary>
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/// Reverses the direction of a given vector.
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/// </summary>
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/// <param name = "value">The vector to negate.</param>
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/// <returns>A vector facing in the opposite direction.</returns>
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public static Int3 operator -(Int3 value)
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{
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return new Int3(-value.X, -value.Y, -value.Z);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <returns>The scaled vector.</returns>
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public static Int3 operator *(int scale, Int3 value)
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{
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return new Int3(value.X*scale, value.Y*scale, value.Z*scale);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <returns>The scaled vector.</returns>
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public static Int3 operator *(Int3 value, int scale)
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{
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return new Int3(value.X*scale, value.Y*scale, value.Z*scale);
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}
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/// <summary>
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/// Scales a vector by the given value.
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/// </summary>
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/// <param name = "value">The vector to scale.</param>
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/// <param name = "scale">The amount by which to scale the vector.</param>
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/// <returns>The scaled vector.</returns>
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public static Int3 operator /(Int3 value, int scale)
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{
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return new Int3(value.X/scale, value.Y/scale, value.Z/scale);
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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><c>true</c> if <paramref name = "left" /> has the same value as <paramref name = "right" />; otherwise, <c>false</c>.</returns>
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[MethodImpl((MethodImplOptions)0x100)] // MethodImplOptions.AggressiveInlining
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public static bool operator ==(Int3 left, Int3 right)
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{
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return left.Equals(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>
|
|
/// <param name = "right">The second value to compare.</param>
|
|
/// <returns><c>true</c> if <paramref name = "left" /> has a different value than <paramref name = "right" />; otherwise, <c>false</c>.</returns>
|
|
[MethodImpl((MethodImplOptions)0x100)] // MethodImplOptions.AggressiveInlining
|
|
public static bool operator !=(Int3 left, Int3 right)
|
|
{
|
|
return !left.Equals(ref right);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an explicit conversion from <see cref = "Int3" /> to <see cref = "Vector2" />.
|
|
/// </summary>
|
|
/// <param name = "value">The value.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public static explicit operator Vector2(Int3 value)
|
|
{
|
|
return new Vector2(value.X, value.Y);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an explicit conversion from <see cref = "Int3" /> to <see cref = "Vector3" />.
|
|
/// </summary>
|
|
/// <param name = "value">The value.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public static explicit operator Vector3(Int3 value)
|
|
{
|
|
return new Vector3(value.X, value.Y, value.Z);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a <see cref = "System.String" /> that represents this instance.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A <see cref = "System.String" /> that represents this instance.
|
|
/// </returns>
|
|
public override string ToString()
|
|
{
|
|
return string.Format(CultureInfo.CurrentCulture, "X:{0} Y:{1} Z:{2}", X, Y, Z);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a <see cref = "System.String" /> that represents this instance.
|
|
/// </summary>
|
|
/// <param name = "format">The format.</param>
|
|
/// <returns>
|
|
/// A <see cref = "System.String" /> that represents this instance.
|
|
/// </returns>
|
|
public string ToString(string format)
|
|
{
|
|
if (format == null)
|
|
return ToString();
|
|
|
|
return string.Format(CultureInfo.CurrentCulture, "X:{0} Y:{1} Z:{2}",
|
|
X.ToString(format, CultureInfo.CurrentCulture),
|
|
Y.ToString(format, CultureInfo.CurrentCulture),
|
|
Z.ToString(format, CultureInfo.CurrentCulture));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a <see cref = "System.String" /> that represents this instance.
|
|
/// </summary>
|
|
/// <param name = "formatProvider">The format provider.</param>
|
|
/// <returns>
|
|
/// A <see cref = "System.String" /> that represents this instance.
|
|
/// </returns>
|
|
public string ToString(IFormatProvider formatProvider)
|
|
{
|
|
return string.Format(formatProvider, "X:{0} Y:{1} Z:{2}", X, Y, Z);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a <see cref = "System.String" /> that represents this instance.
|
|
/// </summary>
|
|
/// <param name = "format">The format.</param>
|
|
/// <param name = "formatProvider">The format provider.</param>
|
|
/// <returns>
|
|
/// A <see cref = "System.String" /> that represents this instance.
|
|
/// </returns>
|
|
public string ToString(string format, IFormatProvider formatProvider)
|
|
{
|
|
if (format == null)
|
|
ToString(formatProvider);
|
|
|
|
return string.Format(formatProvider, "X:{0} Y:{1} Z:{2}", X.ToString(format, formatProvider),
|
|
Y.ToString(format, formatProvider), Z.ToString(format, formatProvider));
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns a hash code for this instance.
|
|
/// </summary>
|
|
/// <returns>
|
|
/// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table.
|
|
/// </returns>
|
|
public override int GetHashCode()
|
|
{
|
|
unchecked
|
|
{
|
|
var hashCode = X;
|
|
hashCode = (hashCode * 397) ^ Y;
|
|
hashCode = (hashCode * 397) ^ Z;
|
|
return hashCode;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified <see cref = "Int3" /> is equal to this instance.
|
|
/// </summary>
|
|
/// <param name = "other">The <see cref = "Int3" /> to compare with this instance.</param>
|
|
/// <returns>
|
|
/// <c>true</c> if the specified <see cref = "Int3" /> is equal to this instance; otherwise, <c>false</c>.
|
|
/// </returns>
|
|
[MethodImpl((MethodImplOptions)0x100)] // MethodImplOptions.AggressiveInlining
|
|
public bool Equals(ref Int3 other)
|
|
{
|
|
return other.X == X && other.Y == Y && other.Z == Z;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified <see cref = "Int3" /> is equal to this instance.
|
|
/// </summary>
|
|
/// <param name = "other">The <see cref = "Int3" /> to compare with this instance.</param>
|
|
/// <returns>
|
|
/// <c>true</c> if the specified <see cref = "Int3" /> is equal to this instance; otherwise, <c>false</c>.
|
|
/// </returns>
|
|
[MethodImpl((MethodImplOptions)0x100)] // MethodImplOptions.AggressiveInlining
|
|
public bool Equals(Int3 other)
|
|
{
|
|
return Equals(ref other);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Determines whether the specified <see cref = "System.Object" /> is equal to this instance.
|
|
/// </summary>
|
|
/// <param name = "value">The <see cref = "System.Object" /> to compare with this instance.</param>
|
|
/// <returns>
|
|
/// <c>true</c> if the specified <see cref = "System.Object" /> is equal to this instance; otherwise, <c>false</c>.
|
|
/// </returns>
|
|
public override bool Equals(object value)
|
|
{
|
|
if (!(value is Int3))
|
|
return false;
|
|
|
|
var strongValue = (Int3)value;
|
|
return Equals(ref strongValue);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an implicit conversion from <see cref="int"/> array to <see cref="Int3"/>.
|
|
/// </summary>
|
|
/// <param name="input">The input.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public static implicit operator Int3(int[] input)
|
|
{
|
|
return new Int3(input);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an implicit conversion from <see cref="Int3"/> to <see cref="System.Int32"/> array.
|
|
/// </summary>
|
|
/// <param name="input">The input.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public static implicit operator int[](Int3 input)
|
|
{
|
|
return input.ToArray();
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an implicit conversion from <see cref="Int3"/> to <see cref="RawInt3"/>.
|
|
/// </summary>
|
|
/// <param name="value">The value.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public unsafe static implicit operator RawInt3(Int3 value)
|
|
{
|
|
return *(RawInt3*)&value;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Performs an implicit conversion from <see cref="RawInt3"/> to <see cref="Int3"/>.
|
|
/// </summary>
|
|
/// <param name="value">The value.</param>
|
|
/// <returns>The result of the conversion.</returns>
|
|
public unsafe static implicit operator Int3(RawInt3 value)
|
|
{
|
|
return *(Int3*)&value;
|
|
}
|
|
}
|
|
}
|