SM64Lib/SM64Lib/Data/System/Bits.cs

using System.Collections;

namespace SM64Lib.Data.System;

public class Bits
{
    public static byte[] ByteToBitArray(byte b)
    {
        var bitarray = new BitArray(new[] { b });
        var temp = new byte[bitarray.Length];
        for (int i = 0, loopTo = bitarray.Length - 1; i <= loopTo; i++)
            temp[i] = Convert.ToByte(bitarray[i]);
        int tindex = 0;
        var temp2 = new byte[(temp.Count())];
        for (int i = temp.Length - 1; i >= 0; i += -1)
        {
            temp2[tindex] = temp[i];
            tindex += 1;
        }

        return temp2;
    }

    public static bool[] ByteToBoolArray(byte b)
    {
        var bitarray = new BitArray(new[] { b });
        var temp = new bool[bitarray.Length];
        for (int i = 0, loopTo = bitarray.Length - 1; i <= loopTo; i++)
            temp[i] = Convert.ToBoolean(bitarray[i]);
        int tindex = 0;
        var temp2 = new bool[(temp.Count())];
        for (int i = temp.Length - 1; i >= 0; i += -1)
        {
            temp2[tindex] = temp[i];
            tindex += 1;
        }

        return temp2;
    }

    public static byte ArrayToByte(byte[] ba)
    {
        // ODER: BitArray.ToByte()

        byte endval = 0;
        int index = ba.Count() - 1;
        foreach (var bit in ba)
        {
            endval += (byte)(bit * Math.Pow(2, index));
            index -= 1;
        }

        return endval;
    }

    public static byte ArrayToByte(bool[] ba)
    {
        // ODER: BitArray.ToByte()

        byte endval = 0;
        int index = ba.Count() - 1;
        foreach (var bit in ba)
        {
            endval += (byte)((bit ? 1 : 0) * Math.Pow(2, index));
            index -= 1;
        }

        return endval;
    }

    public static byte SetInByte(byte b, int index, byte value)
    {
        var temp = ByteToBitArray(b);
        temp[index] = value;
        return ArrayToByte(temp);
    }

    public static byte SetInByte(byte b, int index, bool value)
    {
        var temp = ByteToBoolArray(b);
        temp[index] = value;
        return ArrayToByte(temp);
    }

    public static byte GetBitOfByte(byte b, int index)
    {
        return ByteToBitArray(b)[index];
    }

    public static bool GetBoolOfByte(byte b, int index)
    {
        return ByteToBoolArray(b)[index];
    }
}