When I run this script nothing happens. Why?

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1

I wrote a script for an evolution simulator i’m making, but when I press play nothing happens. I have the script attached to an empty game object named “Summon”. I am using unity2d

//Easily editable variables and what they do
int mutationFactor; // Amount of randomness concerning the limb mutation

// The actual code
public Texture2D Body0;
public Texture2D Body1;
public Texture2D Body2;
public Texture2D Body3;
// Use this for initialization
void Start () {

    MakeCreature(0, 0, true);

}

// Update is called once per frame
void Update () {


}
void MakeCreature(int bodyTypeID = 0, float bodyRot = 0, bool firstGen = false) { // Makes a creature with a specifed body type and randomized limbs

    if (firstGen == false) {

    }
    else {

        // Note to self: Make this random
        CreateBody(Body0/*Note: Change this*/, new Vector2(1, 1)/* Note to self: Make this random*/, new Vector2(1, 1));
    }

}
void CreateBody (Texture2D bodyTexture, Vector2 size, Vector2 Pos) { // Body making function

    Sprite.Create(bodyTexture, new Rect(0, 0, 64, 64), new Vector2(0.5f, 0.5f), 40); // This makes the body sprite
  // note to self: add rigidbody2d
}

}`

2

First you want to remove = false from MakeCreature(). Second, you are essentially doing nothing inside CreateBody(). What do you expect to happen? When you call Sprite.Create() you need to assign the output to something. For example

public SpriteRenderer spriteRenderer1;

CreateBody(Body0, new Vector2(1, 1), new Vector3(1, 1, 0), spriteRenderer1);

void CreateBody (Texture2D bodyTexture, Vector2 size, Vector3 pos, SpriteRenderer renderer)
{
    if (renderer != null)
    {
        renderer.sprite = Sprite.Create(bodyTexture, new Rect(0, 0, 64, 64), new Vector2(0.5f, 0.5f), 40);
        renderer.gameObject.transform.position = pos;
    }
}

The new Vector2(1, 1) had to be change to new Vector3(1, 1, 0) because even though you are doing a 2D game, coordinates use Vector3.

You also need to add a SpriteRenderer to your game somewhere in this example.