Attaching Scripts to Assets

Hi Creators!

I am using Desktop Editor and Typescript.

I am trying to spawn enemies, when the enemies spawn they will move around and look for the player, enemies can also get destroyed by bullets. The enemy is a 3D model in my assets. I can spawn the 3D model. I can also make the enemy move IF the enemy is already in the hierarchy and I attached a move/collision scripts I created.

What I can't figure out is how do I attach the move script to the ENEMY ASSET (Similar to attaching scripts to a prefab in Unity). So that when the enemy is spawned, it starts moving? There is no script option unless I drag the enemy asset to the hierarchy, but then that means I'm editing a copy and not the original asset.

Thanks!

Desktop Editor

TypeScript

gausroth
9 months ago
If you want the script on the asset at spawn time. You will need to either create a copy of the asset with the script already attached or update the current asset after attaching the script. Let me see if I can get some screenshots.
EDIT: If you right click on the asset, click on Edit Template Definition then you should be able to add the script and save the change.

6 Replies

gausroth
Mentor
9 months ago
If you want the script on the asset at spawn time. You will need to either create a copy of the asset with the script already attached or update the current asset after attaching the script. Let me see if I can get some screenshots.
EDIT: If you right click on the asset, click on Edit Template Definition then you should be able to add the script and save the change.
- EchoExclusive
  Start Partner
  9 months ago
  Hey,
  Thanks for the suggestions.
  When I right click my asset (a 3d model) I see this "Place", "remove", "Replace", "Remove" but not edit template definition.
  - EchoExclusive
    Start Partner
    9 months ago
    Oh I think I figured out. I had to click edit template definition in the hierachy, not the Asset. My bad.
    Also to create an asset I had to right click the asset in the Hierarchy and select "Create Asset". That was the part that lost me
    
    Thank you for the help!!
dello32
Member
9 months ago
I'm facing the same problem. I created an Asset with a simple text and shape, and placed my script in the root node (TagAsset):
Then I spawn this Asset using:
```
class TagManager extends hz.Component<typeof TagManager> {
static propsDefinition = {
quizManager: { type: hz.PropTypes.Entity },
tagTemplate : { type: hz.PropTypes.Entity },
tagAsset : { type: hz.PropTypes.Asset },
};
async start() {
let spawner: hz.SpawnController | null = null;
let spawnedEntity: hz.Entity;
let textGizmo: hz.TextGizmo;
spawner = new hz.SpawnController(this.props.tagAsset!,
new hz.Vec3(0, 1.6, 0),
hz.Quaternion.zero,
hz.Vec3.one
);
await spawner.spawn();
spawnedEntity = spawner.rootEntities.get()[0];
textGizmo = spawnedEntity.children.get()[1] as hz.TextGizmo;
console.log(textGizmo.name.get());
console.log(`${textGizmo.text}`);
}
}
hz.Component.register(TagManager);
```
It works, but it's impossible to interact with the asset’s script or even just change textGizmo.text.
The log prints:
tagText
undefined
=> An entity named tagAsset that is a TextGizmo but doesn’t have a .text attribute. That shouldn't be possible.
I tried waiting a few seconds before changing the text, but it still doesn’t work.
dello32
Member
9 months ago
The solution:
bad:
textGizmo = spawnedEntity.children.get()[1] as hz.TextGizmo;

good:
const child = spawnedEntity.children.get()[1];
const textGizmo = child.as(hz.TextGizmo);

Because:
as hz.TextGizmo : is a compilator cast, not a reel cast.
as(hz.TextGizmo) : is a true cast.

So, you can attach script to Asset, spawn Asset, make modification on this asset.