Nerfed/Nerfed.Runtime/Graphics/PackedVector/HalfVector2.cs

#region License

/* MoonWorks - Game Development Framework
 * Copyright 2021 Evan Hemsley
 */

/* Derived from code by Ethan Lee (Copyright 2009-2021).
 * Released under the Microsoft Public License.
 * See fna.LICENSE for details.

 * Derived from code by the Mono.Xna Team (Copyright 2006).
 * Released under the MIT License. See monoxna.LICENSE for details.
 */

#endregion

#region Using Statements
using System;
using System.Numerics;
#endregion

namespace Nerfed.Runtime.Graphics.PackedVector;

public struct HalfVector2 : IPackedVector<uint>, IPackedVector, IEquatable<HalfVector2>
{
	#region Public Properties

	public uint PackedValue
	{
		get
		{
			return packedValue;
		}
		set
		{
			packedValue = value;
		}
	}

	#endregion

	#region Private Variables

	private uint packedValue;

	#endregion

	#region Public Constructors

	public HalfVector2(float x, float y)
	{
		packedValue = PackHelper(x, y);
	}

	public HalfVector2(Vector2 vector)
	{
		packedValue = PackHelper(vector.X, vector.Y);
	}

	#endregion

	#region Public Methods

	public Vector2 ToVector2()
	{
		Vector2 vector;
		vector.X = HalfTypeHelper.Convert((ushort) packedValue);
		vector.Y = HalfTypeHelper.Convert((ushort) (packedValue >> 0x10));
		return vector;
	}

	#endregion

	#region IPackedVector Methods

	void IPackedVector.PackFromVector4(Vector4 vector)
	{
		packedValue = PackHelper(vector.X, vector.Y);
	}

	Vector4 IPackedVector.ToVector4()
	{
		return new Vector4(ToVector2(), 0.0f, 1.0f);
	}

	#endregion

	#region Public Static Operators and Override Methods

	public override string ToString()
	{
		return packedValue.ToString("X");
	}

	public override int GetHashCode()
	{
		return packedValue.GetHashCode();
	}

	public override bool Equals(object obj)
	{
		return ((obj is HalfVector2) && Equals((HalfVector2) obj));
	}

	public bool Equals(HalfVector2 other)
	{
		return packedValue.Equals(other.packedValue);
	}

	public static bool operator ==(HalfVector2 a, HalfVector2 b)
	{
		return a.Equals(b);
	}

	public static bool operator !=(HalfVector2 a, HalfVector2 b)
	{
		return !a.Equals(b);
	}

	#endregion

	#region Private Static Pack Method

	private static uint PackHelper(float vectorX, float vectorY)
	{
		return (uint) (
			HalfTypeHelper.Convert(vectorX) |
			((uint) (HalfTypeHelper.Convert(vectorY) << 0x10))
		);
	}

	#endregion
}