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Copy pathBitWriter.Float.Extensions.cs
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Copy pathBitWriter.Float.Extensions.cs
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101 lines (89 loc) · 3.03 KB
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using System.Runtime.CompilerServices;
using NetCode.Limits;
namespace NetCode;
public static class BitWriterFloatExtensions
{
public const float DefaultFloatPrecision = 0.0000001f;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Write(this BitWriter writer, float value)
{
#if NETSTANDARD2_0
writer.Write(BitConverterNetstandard20.SingleToInt32Bits(value));
#else
writer.Write(BitConverter.SingleToInt32Bits(value));
#endif
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Write(this BitWriter writer, float value, float min, float max, float precision)
{
writer.Write(value, new FloatLimit(min, max, precision));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteUnsafe(this BitWriter writer, float value, FloatLimit limit)
{
float normalizedValue = Mathf.Clamp((value - limit.Min) / limit.Delta, 0, 1);
uint integerValue = (uint)Math.Floor(normalizedValue * limit.MaxIntegerValue + 0.5f);
writer.WriteBits(limit.BitCount, integerValue);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Write(this BitWriter writer, float value, FloatLimit limit)
{
if (value < limit.Min || value > limit.Max)
{
ThrowHelper.ThrowArgumentOutOfRangeException();
}
writer.WriteUnsafe(value, limit);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteValueIfChanged(this BitWriter writer, float baseline, float updated)
{
var diff = updated - baseline;
if (Math.Abs(diff) < DefaultFloatPrecision)
{
writer.Write(false);
}
else
{
writer.Write(true);
writer.Write(updated);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteValueIfChanged(this BitWriter writer, float baseline, float updated, FloatLimit limit)
{
if (Math.Abs(updated - baseline) < limit.Precision)
{
writer.Write(false);
}
else
{
writer.Write(true);
writer.Write(updated, limit);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteDiffIfChanged(this BitWriter writer, float baseline, float updated, FloatLimit limit, FloatLimit diffLimit)
{
var diff = updated - baseline;
if (Math.Abs(diff) < limit.Precision)
{
writer.Write(false);
}
else
{
writer.Write(true);
if (diffLimit.Min < diff && diff < diffLimit.Max)
{
// if diff inside of diff limit, then we will write diff
writer.Write(true);
writer.Write(diff, diffLimit);
}
else
{
// otherwise we will write updated value
writer.Write(false);
writer.Write(updated, limit);
}
}
}
}