static void EnsureListSize <T>(ref List <T> attribute,
int expectedVertexCount,
AttributeValidationStrategy strategy = AttributeValidationStrategy.Nullify,
T fill = default)
{
if (attribute == null || attribute.Count == expectedVertexCount)
{
return;
}
if (strategy == AttributeValidationStrategy.Nullify)
{
attribute = null;
return;
}
var prev = attribute.Count;
var copy = new List <T>(expectedVertexCount);
for (int i = 0, c = Mathf.Min(prev, expectedVertexCount); i < c; i++)
{
copy.Add(attribute[i]);
}
for (int i = copy.Count - 1; i < expectedVertexCount; i++)
{
copy.Add(fill);
}
attribute = copy;
}
static void EnsureArraySize <T>(ref T[] attribute,
int expectedVertexCount,
AttributeValidationStrategy strategy = AttributeValidationStrategy.Nullify,
T fill = default)
{
if (attribute == null || attribute.Length == expectedVertexCount)
{
return;
}
if (strategy == AttributeValidationStrategy.Nullify)
{
attribute = null;
return;
}
int previous = attribute.Length;
Array.Resize(ref attribute, expectedVertexCount);
for (int i = previous - 1; i < expectedVertexCount; i++)
{
attribute[i] = fill;
}
}
