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using System;
using System.Collections;
namespace MonoGame.Extended.Entities
{
public static class BitArrayExtensions
{
public static bool IsEmpty(this BitArray bitArray)
{
for (var i = 0; i < bitArray.Length; i++)
{
if (bitArray[i])
return false;
}
return true;
}
public static bool ContainsAll(this BitArray bitArray, BitArray other)
{
var otherBitsLength = other.Length;
var bitsLength = bitArray.Length;
for (var i = bitsLength; i < otherBitsLength; i++)
{
if (other[i])
return false;
}
var s = Math.Min(bitsLength, otherBitsLength);
for (var i = 0; s > i; i++)
{
if ((bitArray[i] & other[i]) != other[i])
return false;
}
return true;
}
public static bool Intersects(this BitArray bitArray, BitArray other)
{
var s = Math.Min(bitArray.Length, other.Length);
for (var i = 0; s > i; i++)
{
if (bitArray[i] & other[i])
return true;
}
return false;
}
}
}
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