I'm studying game design at university.
My teacher wanted me to do Death Stranding game's stair mechanics as a final project (using Unity Engine).
I made it to a certain stage, but the ladder does not change size according to the platform you will place it as in the game.
When you bring the ladder to the place where you will place it in the game, a hologram changes in size according to the place that you place it.
Can you give me some ideas to help me do this?

Thank you.