Collisions and Futile

microlm

Hi! Sorry if this has been asked before, but I couldn't really find straight answers anywhere.

My group is trying to use Futile with Unity to make a 2d game, but we're not really sure how to do the collisions when using the Spine animations. From what I understand, in Futile, collisions are calculated by find the area of the sprite and then checking to see if it intersects with the area of another sprite, but we couldn't find a way to see the height and width of the current frame of the animation. Is there any way to do that or a way to check for collisions in Futile without calculating the area of the sprites?

Also, we would like to program a "ledge grab", so is there a way to detect collisions for a specific part of the sprite/ a specific bone (in this case the hand)?

Thanks!

microlm

Duré

I'll preface this by saying I haven't used Futile at all so I can't help you there, but I do use Unity and Spine. I do not believe there is a bounding box that surrounds the entire sprite at each frame of the animation. All you have are the different sprites that make up the image and their world coords/dimensions. Maybe you could have your own constant bounding box that always follows the root of your Spine character?

This isn't a Futile solution, but you could create Unity GameObjects with collision boxes for each sprite piece and update the collision box position every frame so they follow the Spine animation. This would also handle the ledge grab since you would have a unique collision box for the hand that you want.

microlm

Thanks for the reply! Unfortunately, apparently there's no bounding boxes built into Futile. We'll try the creating boxes that follow the bones idea though.