Can't Instantiate

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Beginner here with a noob question. I'm trying to instantiate a sprite (redBall), but I can't quite get my code to work. This is the part of the script that is relevant:

 public Sprite redBall;
 private void Start() {
             Instantiate(redBall, new Vector3(0.0f, 0.0f, 0.0f), Quaternion.identity);
         }

The Sprite field shows up in the inspecter, and I use the drag and drop method to set it. But when I run the program, nothing shows up. There's no compiler error, and when I manually place the sprite in the hierarchy, it does show up, so I know it's not a problem with the sprite object itself.

Thank you for your time.

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Best Answer

Answer by Magso · Jan 27, 2020 at 05:57 PM

The first argument of instantiate needs to be a GameObject type, you're trying to instantiate a Sprite type.

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Wittz8 · Jan 27, 2020 at 06:00 PM 0

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$$anonymous$$aybe I'm not seeing something -- I thought that's what I did. The first argument is "redBall," correct? And I declared it as a Sprite already, no?

Magso Wittz8 · Jan 27, 2020 at 06:10 PM 0

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S̶p̶r̶i̶t̶e̶ sorry SpriteRenderer is the component in which case AddComponent would be used. Instantiate adds an object to the scene along with it's components i.e. makes copies of prefabs in the scene.

For similar context.

 //Like how
 float myFloat = 5;
 //and
 String myString = "5";
 //can not be used the same way.

Hellium Wittz8 · Jan 27, 2020 at 06:13 PM 0

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$$anonymous$$agso is almost right, a Sprite is an asset. Instantiating a sprite creates a duplicate of this asset (not stored in your Project folder though).

What you want to do is to create a GameObject with a SpriteRenderer referencing your sprite.

So either create a prefab of the GameObject already setup, and instantiate this prefab, or create a gameObject from code, attach a SpriteRenderer to it and provide the sprite.

 public GameObject redBallPrefab;
 private void Start() {
     Instantiate(redBallPrefab, new Vector3(0.0f, 0.0f, 0.0f), Quaternion.identity);
 }

 public Sprite redBall;
 private void Start() {
     GameObject ballGameObject = new GameObject("redBall");
     SpriteRenderer spriteRenderer = ballGameObject.AddComponent<SpriteRenderer>();
     spriteRenderer.sprite = redBall;
 }

Wittz8 Hellium · Jan 27, 2020 at 06:28 PM 0

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I thought I was creating the prefab. I've created a sprite in my assets and used the drag and drop method to drag it into the inspector. I thought this is what creating and using a prefab is, no? The sprite in my assets appears when I drag it into the hierarchy.

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Can't Instantiate

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