totk-tas-docs

Player momentum/drag idle and jumping on a moving platform

Link’s stagger(?) animation doesn’t indicate that he’s being nudged across the platform or non-grounded or anything. He just does that when the platform begins moving him, and there’s never any movement relative to the platform at this time.
Landing on this level platform doesn’t appear to nudge Link at all. He does move relative to the platform, but this appears to be drag which begins 5 frames into the jump. (It looks like there’s a frame 6 where the platform motion “grabs” him again before drag fully “takes over” though, which is interesting.)
The drag works symmetric front+back here, as final position is very close to starting position.
All of this seems deterministic. Unfortunately the platform speed isn’t perfectly constant.

momentum-platform-idle.mp4 (download)

Player momentum/drag moving off terrain ledge

drag seems to affect player consistently in most basic movement animations, but I didn’t try to derive the function/graph/etc of velocity decay
bow aim jumps appear to preserve speed / receive no drag
untested: shield surf preservation and dive mechanics
(note vel drag does not stop ticking when we upwarp, that’s good)
(idk why the upwarp is rotating Link, that’s bad but doesn’t appear to affect speed, I prob broke something)
hmm I think something’s wrong with this crouch jump example, it’s too slow, he’s prob clipping the platform. Nonetheless the drag timing after frame 9 is consistent with everything else

walk drag:
vel |xz| 5.55255 @ 31fr // first frame of drag (frame 3 of fall)
vel |xz| 0 @ 1882fr
1851fr duration = 61.7s

sprint drag:
vel |xz| 8.097004 @ 25fr // first frame of drag? (frame 5 of fall?)
vel |xz| 5.55320 @ 873fr // sync/test point
vel |xz| 0 @ 2725fr
1852fr duration ~= 61.73s

walk+jump drag:
vel |xz| 5.552543 @ 41fr // first frame of drag (frame 20 of jump)
vel |xz| 0 @ 1892fr
1851fr duration = 61.7s

sprint+jump drag:
vel |xz| 8.097004 @ 42fr // first frame of drag (frame 22 of jump)
vel |xz| 5.553320 @ 890fr // sync/test point
vel |xz| 0 @ 2742fr
1852fr duration ~= 61.73s

throwaim+jump drag:
vel |xz| 5.397000 @ 32fr // first frame of drag (frame 21 of jump)
(frame display missing because i canceled tas to use camera, so not bothering to calc duration)

bowaim+jump drag:
drag free! (only when starting from grounded bow aim)
(i canceled tas to use camera)

crouch jump drag:
// first frame of jump @ 37fr
vel |xz| 6.309294 @ 46fr // first frame of obvious drag (frame 9 of jump)
vel |xz| 5.553349 @ 298fr // sync/test point
vel |xz| 0 @ 2150 fr
1852fr duration ~= 61.73s