Opening doors

Animal

https://streamable.com/mb0894

Please tell me theoretically how the process of opening doors is created, and what pitfalls can be expected? (I'm trying to do something similar to the video above, I would be glad for instructions on how to do it right)

Animal

https://streamable.com/ns0ec8

Аналогично с вопросом по дверях, пытался создать эффект, что персонаж толкает лестницу, возможно не знаю как задать движение персонажа во время толкания, подскажите пожалуйста.

Animal

Sorry, but in English too:
https://streamable.com/nbmj1y

Similarly, with the question on the doors, I tried to create the effect that the character was pushing the stairs. It turned out to push the stairs due to the parallel movement, I don’t know how to synchronize these actions correctly. How to stop the character after the end of the movement of the stairs?

ChrisIceBox

The best way to sync up the movement of an object, a character's animation, and sound, is to use Unity's Timeline feature.

AC's Engine: Control Timeline Action can be used to playback Timelines as part of cutscenes and interactions, and can also be used to remap bindings at runtime.