Climbing and cover
A 3D character can climb ladders, hang from ledges, run along walls, swing on a grapple hook, ride ziplines and take cover. These are moves built into the engine, so there's no script to write. Ask your AI in plain words ("add a ladder up to that roof", "let the player grab ledges"), or turn each one on yourself in the character's Inspector, under Character.
| Move | Turn it on | In the game |
|---|---|---|
| Ladders | Ask your AI for one, or tag your own ladder model traverse:ladder (its front is the side it faces). Ladder Speed sets the pace. | Walk into its front to get on. Forward and back climb. The top steps you off onto the landing, the bottom onto the ground. Jump lets go. |
| Ledges | Tick Ledge Grab. Tag an object traverse:no_ledge to keep hands off it. | Jump or fall past a top edge while pushing toward it, and the hands catch it. Left and right shimmy. Forward or jump pulls up. Back or crouch lets go. |
| Wall runs | Set Wall Run Time to how many seconds a run lasts (0 is off). Tag an object traverse:no_wallrun to keep runs off it. | Run fast, hold forward and jump along a wall at your side. The run ends when the time is up, the wall ends or you let go of forward. Jump kicks you off the wall. |
| Grapple hook | Set Grapple Range, and Grapple Pull to reel in (0 only swings). Tag the points traverse:grapple, or tick Grapple Any to hook any surface. | Q hooks the point you're aiming at, and the rope swings you under it. Jump or Q again lets go and keeps the swing's speed. |
| Ziplines | Ask your AI for a cable between two points, or tag your own cable traverse:zipline. Zip Speed sets the top speed. | Jump to the cable to catch it and ride down. Jump lets go, and the low end drops you off. |
| Cover | Tick Cover. | V against a wall puts your back to it, crouched behind low cover. Left and right slide along it and stop at its ends. Aiming peeks over it or out past its edge. V again, jump or pushing away leaves. |
Tags go under About in the object's Inspector. If your game has its own grapple or cover action in the Input panel, that replaces Q or V.
Animation: a character with no climbing clips of its own still moves, using poses worked out for its own body. To use your own clips, ask your AI to add the traversal states to its state machine.
Check it: ask your AI to test the ladder. It walks the character to the ladder and up it in a private copy and tells you when it got on and off. Then press Play and try each move yourself.