I can echo that the ladder controls could be streamlined a bit. I wound up drowning a kid before I figured it out. If the player is on a flat ground next to a ladder, and gives a command to a companion on a ladder to follow, they climb up to the player's Y axis, but if told to detach from the ladder they'll hit the wall instead of landing on the ground. A simple solution might be to make a companion on a ladder try to climb slightly above the player, instead of on level with them. Very cue minimalism overall
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I've been thinking and I might remove the Companion being knocked off from ladders by the Player (And changing the yellow book with this info about something else, like how the Player can use ladders horizontaly but not Companions).
When they quit the ladder, they get into "equivalent" states (Example: If they were following you on the ladder, they return to "FOLLOWME" on ground and viceversa with running away or idle).
But it's entering the ladder where they go to "CLIMBIDLE" by default because I thought it was safer.