CODEWITHSUNDEEP
c#unity-game-engine
WDUK
WDUK

Reputation: 1524

In Unity, how do you create a collection of pointers?

Is it possible to create a list or array of pointers in C#?

I want to have a list of T* rather than use IntPtr because i am forever having to type Marshal Ptr To Structure methods all over the place rather than directly access methods via -> command.

I tried making a list with T* but it says it cannot use it as a type. So is my only option to just constantly convert when needed from the IntPtr ?

Upvotes: 1

Views: 367

Answers (1)

shingo
shingo

Reputation: 27254

  1. You can declare an array of pointer.

    unsafe Vector3*[] vectorPointerArray;

  2. You cannot use pointer as a generic type parameter like List<Vector3*>, this is still under consideration.

  3. Because of the feasibility 1, you can create a collection to hold pointers, though it cannot implement generic interfaces like IList<T>.

    unsafe class UnsafePointerList<T> where T : unmanaged
{
    private T*[] _items;
    public T* this[int index] => _items[index];
}

UnsafePointerList<Vector3> vectorPointerList;
var x = vectorPointerList[0]->x;

Upvotes: 2

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