How can I load and position my sprites in c#?

I’m still trying to learn unity (latest 4.3.3) and coming from a monogame / xna C# background.

In monogame, I could simply run through a List and set each sprites updated position. Childs play… In unity, this is proving to be an exercise in frustration and I know it has to be something really simple that Im missing…

I have the following in a c# script:

public class Flake
    public Sprite sprite;

    public int col { get; set; }
    public int row { get; set; }
    public float alpha { get; set; }
    public Vector2 pos { get; set; }
    public float scale { get; set; }
    public Vector2 velocity { get; set; }

    GameObject menuObject;

    Transform t;

    public Flake(Sprite spr, int c, int r, float a, Vector2 p, float s, Vector2 v)
        col = c;
        row = r;
        alpha = a;
        pos = p;
        scale = s;
        velocity = v;

    public void Update(float elapsed)
        if (sprite == null)
            Debug.Log("null sprite!");

        alpha -= 45 * elapsed;
        alpha = Mathf.Clamp(alpha, 0, 255);

        scale -= 0.055f * elapsed;
        scale = Mathf.Clamp(scale, 0, 2.0f);

        pos += velocity * elapsed;

        t.localPosition = new Vector3(pos.x, 0, pos.y);


In another part of the main script, I am loading my sprites and creating a new “flake” and setting the sprite texture. This “seems” to be working fine… the sprites are not null…

public Sprite[] sprites;

List<Flake> flakeList = new List<Flake>();

sprites = Resources.LoadAll<Sprite>("Flakes");

flakeList.Add(new Flake(this.sprites[Random.Range(0, this.sprites.GetLength(0) - 1)], 0, 0, 1, new Vector2(1, 1), 1, new Vector2(1, 1)));

Next, I want to update my sprites positions by calling their update and then this is where I am getting stuck. I have my sprite object, and I have tried playing with the renderer and transforms, but I can not figure out how to make the sprites actually display on the scene and update their positions. I would think its a simple:

t.localPosition = new Vector3(pos.x, 0, pos.y);

But Im not getting it to work… So how does one go about making these sprites appear and update their position on screen?? Do I need to instantiate a new gameobject for each? or ??

Any help would be greatly appreciated!

If you want to view the full script, its here: fullscript -
and the main part does derive from a monobehavior… I dont want the Flake class to update itself really…

What you need is to create a Flake Prefab and Instantiate it to add it to the scene…

  1. Create A Flake GameObject: Drag your Flake Sprite Texture to Scene.
  2. Make it a Prefab: Drag your Flake GameObject to Project.
  3. You can load that prefab via Resources.Load() and Instantiate.

Hope it helps.