Issue with switching scenes

artaka
Guest

Posts: 0

Issue with switching scenes Jun 19, 2014 17:39:32 GMT

Quote

Post by artaka on Jun 19, 2014 17:39:32 GMT

Hey Brian,
Recently I came across the issue below after I got the latest on MasterAudio.

There is no Master Audio prefab in this Scene. Subsequent method calls will fail.
UnityEngine.Debug:LogError(Object)
MasterAudio:get_Instance() (at Assets/DarkTonic/MasterAudio/Scripts/Singleton/MasterAudio.cs:4460)
MasterAudio:get_GroupBuses() (at Assets/DarkTonic/MasterAudio/Scripts/Singleton/MasterAudio.cs:4406)
MasterAudioGroup:get_BusForGroup() (at Assets/DarkTonic/MasterAudio/Scripts/Settings/MasterAudioGroup.cs:108)
MasterAudioGroup:RemoveActiveAudioSourceId(Int32) (at Assets/DarkTonic/MasterAudio/Scripts/Settings/MasterAudioGroup.cs:94)
SoundGroupVariation:Stop(Boolean) (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:324)
SoundGroupVariation:StopSoundEarly() (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:152)
SoundGroupVariation:OnDestroy() (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:137)

NullReferenceException: Object reference not set to an instance of an object
MasterAudio.get_GroupBuses () (at Assets/DarkTonic/MasterAudio/Scripts/Singleton/MasterAudio.cs:4406)
MasterAudioGroup.get_BusForGroup () (at Assets/DarkTonic/MasterAudio/Scripts/Settings/MasterAudioGroup.cs:108)
MasterAudioGroup.RemoveActiveAudioSourceId (Int32 _varInstanceId) (at Assets/DarkTonic/MasterAudio/Scripts/Settings/MasterAudioGroup.cs:94)
SoundGroupVariation.Stop (Boolean stopEndDetection) (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:324)
SoundGroupVariation.StopSoundEarly () (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:152)
SoundGroupVariation.OnDestroy () (at Assets/DarkTonic/MasterAudio/Scripts/Settings/SoundGroupVariation.cs:137)

It's happens when I load a new scene where I do not preserve any gameobjects from the previous scene. The moment the new scene is loaded, those are the two errors I get. Do I have to manually clear or destroy MasterAudio before the new scene loads?
Thanks

DarkTonic Dev Administrator Posts: 4,386 Posts: 4,386	Issue with switching scenes Jun 19, 2014 23:30:23 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by DarkTonic Dev on Jun 19, 2014 23:30:23 GMT Do you have a Master Audio prefab in the 2nd Scene? That error should only appear if you do not and you attempt to play some sounds.

artaka Guest Posts: 0	Issue with switching scenes Jun 19, 2014 23:35:31 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by artaka on Jun 19, 2014 23:35:31 GMT I do have a Master Audio prefab in both the first and second scenes.

DarkTonic Dev
Administrator

Posts: 4,386

Issue with switching scenes Jun 20, 2014 0:07:44 GMT

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Post by DarkTonic Dev on Jun 20, 2014 0:07:44 GMT

You could conceivably get that error if you have a "disabled" or "destroyed" event trying to play a sound, and when that event happens when the Scene is changed (and all objects are destroyed and disabled). At that point of course the Master Audio prefab is also destroyed.

If you're using it in a different case, you'll need to either send me steps to reproduce the error, or send me your whole project and tell me how to reproduce it. You can use filemail.com to send large files.

-Brian

artaka
Guest

Posts: 0

Issue with switching scenes Jun 20, 2014 1:17:56 GMT

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Post by artaka on Jun 20, 2014 1:17:56 GMT

So here is what I found. I have a DynamicSoundGroupCreator parented under my character. When the character spawns, it brings its set of sound groups with it. I disabled the DynamicSoundGroupCreator and all errors disappeared. That led me to assume that when the first scene is unloaded, MasterAudio gameObject would get removed before DynamicSoundGroupCreator gameObject and that would causes the error. So tried adding this to MasterAudio.cs.

void OnDestroy()
{
AppIsShuttingDown = true;
}

This seemed to have fixed it. I'm not sure if this will break something else but that seemed to have fixed these particular errors.

DarkTonic Dev
Administrator

Posts: 4,386

Issue with switching scenes Jun 20, 2014 2:13:15 GMT

Quote

Post by DarkTonic Dev on Jun 20, 2014 2:13:15 GMT

Ah....ok. Yeah don't do that, that will suppress other valid errors later. Instead of changing Dynamic Sound Group Creator code, you should just tell it to not "Auto-remove items" - there's a checkbox for that in the Inspector. Since you're not using a persistent Master Audio prefab, there's no point to having that code run. Also your error will go away. I'll put a note in the readme about this now.

artaka Guest Posts: 0	Issue with switching scenes Jun 20, 2014 2:41:03 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by artaka on Jun 20, 2014 2:41:03 GMT Great! That worked! Reverted MasterAudio.cs back and all works good. Thanks Brian

DarkTonic Dev Administrator Posts: 4,386 Posts: 4,386	Issue with switching scenes Jun 20, 2014 3:29:50 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by DarkTonic Dev on Jun 20, 2014 3:29:50 GMT Cool.

Post by artaka on Jun 19, 2014 17:39:32 GMT

Post by DarkTonic Dev on Jun 19, 2014 23:30:23 GMT

Post by artaka on Jun 19, 2014 23:35:31 GMT

Post by DarkTonic Dev on Jun 20, 2014 0:07:44 GMT

Post by artaka on Jun 20, 2014 1:17:56 GMT

Post by DarkTonic Dev on Jun 20, 2014 2:13:15 GMT

Post by artaka on Jun 20, 2014 2:41:03 GMT

Post by DarkTonic Dev on Jun 20, 2014 3:29:50 GMT

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