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Code Question

nyxpixel

Hi There

Trying to make some modifications to the bonefollower script, and ran into something I can't seem to figure out.

thisTransform.localPosition = new Vector3(bone.worldX, bone.worldY, followZPosition ? 0f : thisTransform.localPosition.z);

In the line above, what in the world is that last assignment for the z position doing? I have tried googling, but not sure what the question mark and colon are doing.

Use case is that I need a gameobject to follow the z position of the bone, but slightly behind it (like .1f in unity, for z-sorting purposes).

Harald

The ?: operator is called "(ternary) conditional operator", see this reference here:
https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/conditional-operator

It does the following with this block:
condition ? true_value : false_value
The whole block above is evaluated to true_value if condition is true, otherwise to false_value.

In your case I would suggest to not modify the component, but to instead create an additional GameObject as child of the BoneFollower's GameObject with the proper z-offset. Otherwise you will run into problems when updating the Spine-Unity runtime.

You could also create a separate additional BoneFollowerWithOffset component class of course, if that is what you meant by "modifying".

nyxpixel

Thanks very much, somehow I'd never come across that before. I think your idea to attach it to another GameObject underneath is the easiest path. Not sure why I didn't think of that.

Thanks again!

Harald

No problem, thanks for getting back to us!