public static SCNPhysicsShape Create(SCNPhysicsShape [] shapes, SCNMatrix4 [] transforms)
{
if (shapes == null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentException(nameof(shapes));
}
if (transforms == null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentException(nameof(transforms));
}
var t = new NSValue [transforms.Length];
for (var i = 0; i < t.Length; i++)
{
t [i] = NSValue.FromSCNMatrix4(transforms [i]);
}
return(Create(shapes, t));
}
public static SCNPhysicsShape Create(SCNPhysicsShape [] shapes, SCNMatrix4 [] transforms)
{
if (shapes == null)
{
throw new ArgumentNullException("shapes");
}
if (transforms == null)
{
throw new ArgumentNullException("transforms");
}
var t = new NSValue [transforms.Length];
for (var i = 0; i < t.Length; i++)
{
t [i] = NSValue.FromSCNMatrix4(transforms [i]);
}
return(Create(shapes, t));
}
static NSArray ToNSArray(SCNMatrix4 []?items)
{
if (items is null)
{
return(new NSArray());
}
var count = items.Length;
var buf = Marshal.AllocHGlobal((IntPtr)(count * IntPtr.Size));
for (nint i = 0; i < count; i++)
{
var item = NSValue.FromSCNMatrix4(items [i]);
var h = item == null ? NSNull.Null.Handle : item.Handle;
Marshal.WriteIntPtr(buf, (int)(i * IntPtr.Size), h);
}
var nsa = new NSArray(NSArray.FromObjects(buf, count));
Marshal.FreeHGlobal(buf);
return(nsa);
}
