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// Copyright (c) 2017 Eric Mellino
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
using System;
using System.Collections.Generic;
using System.Text;
namespace Vulkan
{
/// <summary>
/// Structure specifying a two-dimensional subregion.
/// </summary>
public partial struct VkRect2D : IEquatable<VkRect2D>
{
/// <summary>
/// An <see cref="VkRect2D"/> with all of its components set to zero.
/// </summary>
public static readonly VkRect2D Zero = new VkRect2D(VkOffset2D.Zero, VkExtent2D.Zero);
/// <summary>
/// Initializes a new instance of the <see cref="VkRect2D"/> structure.
/// </summary>
/// <param name="offset">The offset component of the rectangle.</param>
/// <param name="extent">The extent component of the rectangle.</param>
public VkRect2D(VkOffset2D offset, VkExtent2D extent)
{
this.offset = offset;
this.extent = extent;
}
/// <summary>
/// Initializes a new instance of the <see cref="VkRect2D"/> structure.
/// </summary>
/// <param name="extent">The extent component of the rectangle.</param>
public VkRect2D(VkExtent2D extent)
{
this.offset = default(VkOffset2D);
this.extent = extent;
}
/// <summary>
/// Initializes a new instance of the <see cref="Rect2D"/> structure.
/// </summary>
/// <param name="x">The X component of the offset.</param>
/// <param name="y">The Y component of the offset.</param>
/// <param name="width">The width component of the extent.</param>
/// <param name="height">The height component of the extent.</param>
public VkRect2D(int x, int y, uint width, uint height)
{
this.offset = new VkOffset2D(x, y);
this.extent = new VkExtent2D(width, height);
}
/// <summary>
/// Initializes a new instance of the <see cref="Rect2D"/> structure.
/// </summary>
/// <param name="x">The X component of the offset.</param>
/// <param name="y">The Y component of the offset.</param>
/// <param name="width">The width component of the extent.</param>
/// <param name="height">The height component of the extent.</param>
public VkRect2D(int x, int y, int width, int height)
{
this.offset = new VkOffset2D(x, y);
this.extent = new VkExtent2D(width, height);
}
/// <summary>
/// Initializes a new instance of the <see cref="Rect2D"/> structure.
/// </summary>
/// <param name="width">The width component of the extent.</param>
/// <param name="height">The height component of the extent.</param>
public VkRect2D(uint width, uint height)
{
this.offset = default(VkOffset2D);
this.extent = new VkExtent2D(width, height);
}
/// <summary>
/// Determines whether the specified <see cref="VkRect2D"/> is equal to this instance.
/// </summary>
/// <param name="other">The <see cref="VkRect2D"/> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="VkOffset2D"/> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public bool Equals(ref VkRect2D other)
{
return other.offset.Equals(ref offset) && other.extent.Equals(ref extent);
}
/// <summary>
/// Determines whether the specified <see cref="VkRect2D"/> is equal to this instance.
/// </summary>
/// <param name="other">The <see cref="VkRect2D"/> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="VkRect2D"/> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public bool Equals(VkRect2D other)
{
return Equals(ref other);
}
/// <summary>
/// Determines whether the specified <see cref="object"/> is equal to this instance.
/// </summary>
/// <param name="obj">The <see cref="object"/> to compare with this instance.</param>
/// <returns>
/// <c>true</c> if the specified <see cref="object"/> is equal to this instance; otherwise, <c>false</c>.
/// </returns>
public override bool Equals(object obj)
{
return obj is VkRect2D && Equals((VkRect2D)obj);
}
/// <summary>
/// Returns the hash code for this instance.
/// </summary>
/// <returns>The hash code.</returns>
public override int GetHashCode()
{
unchecked
{
int hashCode = extent.GetHashCode();
hashCode = (hashCode * 397) ^ offset.GetHashCode();
return hashCode;
}
}
/// <summary>
/// Returns a boolean indicating whether the two given rectangles are equal.
/// </summary>
/// <param name="left">The first rectangle to compare.</param>
/// <param name="right">The second rectangle to compare.</param>
/// <returns><c>true</c> if the rectangles are equal; <c>false</c> otherwise.</returns>
public static bool operator ==(VkRect2D left, VkRect2D right) => left.Equals(right);
/// <summary>
/// Returns a boolean indicating whether the two given rectangles are not equal.
/// </summary>
/// <param name="left">The first rectangle to compare.</param>
/// <param name="right">The second rectangle to compare.</param>
/// <returns>
/// <c>true</c> if the rectangles are not equal; <c>false</c> if they are equal.
/// </returns>
public static bool operator !=(VkRect2D left, VkRect2D right) => !left.Equals(right);
}
}
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