74 lines
2.3 KiB
C#
74 lines
2.3 KiB
C#
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// Unity's Bounds struct is represented as (center, extents).
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// HistoryBounds make heavy use of .Encapsulate(), which has to convert
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// Unity's (center, extents) to (min, max) every time, and then convert back.
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//
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// It's faster to use a (min, max) representation directly instead.
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using System;
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using System.Runtime.CompilerServices;
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using UnityEngine;
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namespace Mirror
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{
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public struct MinMaxBounds: IEquatable<Bounds>
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{
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public Vector3 min;
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public Vector3 max;
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// encapsulate a single point
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void Encapsulate(Vector3 point)
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{
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min = Vector3.Min(this.min, point);
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max = Vector3.Max(this.max, point);
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}
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// encapsulate another bounds
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public void Encapsulate(MinMaxBounds bounds)
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{
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Encapsulate(bounds.min);
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Encapsulate(bounds.max);
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}
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// convenience comparison with Unity's bounds, for unit tests etc.
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public static bool operator ==(MinMaxBounds lhs, Bounds rhs) =>
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lhs.min == rhs.min &&
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lhs.max == rhs.max;
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public static bool operator !=(MinMaxBounds lhs, Bounds rhs) =>
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!(lhs == rhs);
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public override bool Equals(object obj) =>
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obj is MinMaxBounds other &&
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min == other.min &&
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max == other.max;
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public bool Equals(MinMaxBounds other) =>
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min.Equals(other.min) && max.Equals(other.max);
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public bool Equals(Bounds other) =>
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min.Equals(other.min) && max.Equals(other.max);
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#if UNITY_2021_3_OR_NEWER
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// Unity 2019/2020 don't have HashCode.Combine yet.
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// this is only to avoid reflection. without defining, it works too.
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// default generated by rider
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public override int GetHashCode() => HashCode.Combine(min, max);
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#else
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public override int GetHashCode()
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{
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// return HashCode.Combine(min, max); without using .Combine for older Unity versions
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unchecked
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{
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int hash = 17;
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hash = hash * 23 + min.GetHashCode();
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hash = hash * 23 + max.GetHashCode();
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return hash;
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}
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}
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#endif
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// tostring
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public override string ToString() => $"({min}, {max})";
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}
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}
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