Changing polygon collider when changing spriteID

[Eldh]

Hi,
So i instantiate a prefab, in this when i change the spriteID, randomly in my case, the polygon collider won't update. It stay the same since the instantiate.
Is there a way to update the collider when i change the sprite ?

[unikronsoftware]

It doesn't for a good reason, but it isn't convenient like this. I am aware of it and it is likely to change in a future update.

The easiest way around this is to create a new sprite using the sprite collection from the prefab - create a GameObject, and use tk2dSprite.AddComponent(...) to add a sprite to the gameObject. If you really need the prefab, destroy the attached collider before switching. I think that should sort it out. The reason it isn't doing this automatically is that this is a very costly process in terms of CPU usage, so its best not to do it that often.

[Eldh]

Mhh i tried to use tk2dSprite.AddComponent(...) on an empty gameobject like you said but it does not create a collider at all...
I instantiate my prefab which contain several sprites, then i add the tk2dsprite component to the gameObject (in my prefab) cause only this need to change randomly, but i'm relatively a beginner so maybe i do something wrong ? all this happens on Start.

[unikronsoftware]

I'll look into this for you - I'm just recovering from a HD crash, so it'll likely be tomorrow before I get a chance to investigate this.

[unikronsoftware]

Ahaa. I found the issue.

When creating a sprite using tk2dSprite.AddComponent(...), the collider isn't created. Change tk2dBaseSprite.CreateCollider like so -

Code: [Select]

public static T AddComponent<T>(GameObject go, tk2dSpriteCollectionData spriteCollection, int spriteId) where T : tk2dBaseSprite
{
T sprite = go.AddComponent<T>();
sprite._spriteId = -1;
sprite.collection = spriteCollection;
sprite.spriteId = spriteId;
sprite.Build();
return sprite;
}


Now it should work correctly.

[Eldh]

it's working, thx !