Unity - IOS - draworder keys

Rosss

Hi all,

(downloaded latest runtimes 3 weeks ago.)
(compiling to 64bit)

we keep getting a problem where we are adding draw order keys to our anims... they work fine in the Unity editor and in the web player. When we export to IOS we get this message in Xcode

Error reading skeleton JSON file for SkeletonData asset: George
Array index is out of range.
at Spine.SkeletonJson.ReadAnimation ...
...
...

i've put some output into the SkeletonJson.ReadAnimation function ... and it's always and only happening on draworder keys...

result is that the whole animated character vanishes...

any help very much appreciated.

Nate

Can you narrow it down to what line has the problem?

Pharan

Just pasting links to the other topics here 'cause they're kinda related.
viewtopic.php?f=9&t=3999
viewtopic.php?f=9&t=4025

@Rosss. You'll need to throw a bunch of Debug.Logs or try-catches in there to track down where the snag is, since the stacktraces from Unity's IL2CPP (for iOS 64-bit) doesn't give you line numbers.

Nate

It's not impossible it's the runtime's fault, but if everything else is identical except it crashes on iOS, I'd lean toward it being a low level Unity/Mono problem.

Rosss

Hi folks... thanks for getting back to me... So i've just been putting a load of Debug.Logs in SkeletonJson.ReadAnimation...

this is the line it's breaking on
// Set changed items.
drawOrder[originalIndex + (int)(float)offsetMap["offset"]] = originalIndex++;

the values for offsetMap and originalIndex don't seem to whacky in my example (6 + 8 ) but obviously that's over the limit for that drawOrder array.

here's the actual readout from Xcode

Error reading skeleton JSON file for SkeletonData asset: George
Array index is out of range.
at Spine.SkeletonJson.ReadAnimation (System.String name, System.Collections.Generic.Dictionary`2 map, Spine.SkeletonData skeletonData) [0x00000] in <filename unknown>:0
at Spine.SkeletonJson.ReadSkeletonData (System.IO.TextReader reader) [0x00000] in <filename unknown>:0
at SkeletonDataAsset.GetSkeletonData (Boolean quiet) [0x00000] in <filename unknown>:0
at SkeletonRenderer.Reset () [0x00000] in <filename unknown>:0
at SkeletonAnimation.Reset () [0x00000] in <filename unknown>:0
at VortexEffect.OnRenderImage (UnityEngine.RenderTexture source, UnityEngine.RenderTexture destination) [0x00000] in <filename unknown>:0
at SkeletonRenderer.OnEnable () [0x00000] in <filename unknown>:0
at Replacements.Attribute.CheckParameters (System.Object element, System.Type attributeType) [0x00000] in <filename unknown>:0

it looks possible from those other threads that if i get the animator to remove the draw order keys and try putting them back in (?!) ... it'll fix it... maybe ... but a better solution if you have one would be nice 🙂
thanks,
Ross

FIXED:

here's how...
I replaced the line

drawOrder[originalIndex + (int)(float)offsetMap["offset"]] = originalIndex++;

with

int hack = originalIndex + (int)(float)offsetMap["offset"];
drawOrder[hack] = originalIndex++;

problem solved! so, something to do with the 64bit stuff then...

Nate

Yikes, it's quite scary they got that wrong. I wonder if their order of operations is broken? You should probably report this to the appropriate authorities! 🙂 I've made the change in spine-csharp.

Pharan

I'd like to report this to the Unity Issue Tracker but I have no idea how to phrase it.
http://issuetracker.unity3d.com/

Nice catch though. Thanks Rossssssssss

Nate

Just show the offending line and the "fixed" line. Tell them they should be equivalent but they aren't, so there is a major problem somewhere in the nasty depths of their shizzle.