Fix for ladder cutscene softlock vanilla bug

[djevangelia]

ASM fix for the vanilla bug where the game softlocks if you enter a cutscene while dismounting a ladder. Fixes #2004.

I have written more extensively about the bug here with reference to the decomp C code, but the core issue is that the cutscene state cannot be cleared when player is dismounting a ladder because the animation stops updating. The fix adds a check that if player is in a cutscene, do not return before LinkAnimation_Update is run.

Testing

Works in Ares 1.47, Project64 3.0.1 and Mupen64plus 2.8. https://www.youtube.com/watch?v=gyMnAFtWs7o

[r0bd0g]

I'm curious if this breaks ladder RI? I guess I can't think of a reason why it would if all this does is break you out of a softlock if a softlock happens.
Even if not, I wonder, if there's some weird glitch setup out there that needs ladder softlock for some reason lol.

[GSKirox]

Thanks for tackling this one, i always wanted to look into it properly but player decomp was not commented enough for me to figure this out.

[djevangelia]

I'm curious if this breaks ladder RI? I guess I can't think of a reason why it would if all this does is break you out of a softlock if a softlock happens. Even if not, I wonder, if there's some weird glitch setup out there that needs ladder softlock for some reason lol.

It's now (post new commit) actually the opposite, you can now use Farore's Wind and other CS items while dismounting without softlocking. I didn't know about ladder restricted items, but looking it up I saw that Farore's Wind doesn't work, tried other items, realised it's because they use unk_6AD 4 to set up their cutscene mode.
So code now edited to keep updating animation for both unk_6AD 3 and 4. Tested on Ares and Project64.

As for use cases for the softlock, there really cannot be any. It's 100% locked situation. No player inputs are processed because it's a cutscene state. Animation doesn't progress so nothing will happen without player activity.
In this log of a Farore's Wind softlock, one can see that nothing happens after player reached animation frame 22.0 (search for curFrame 22.0)