Swimming & Crawling — v1.6.0

Added

• Added a new swimming animation with a restrained symmetric breaststroke, leg kicks, and subtle torso roll

• Added swimming animation cadence based on actual three-dimensional movement, including vertical movement, with a smooth transition into a glide as speed decreases

• Added coordinated crawling animations with opposite arm and leg movement, subtle torso motion, and reversed animation playback when moving backward

Fixed

• Fixed sprint swimming being interrupted when swimming against walls or steering away from them while forward input is still held

• Fixed jump and sneak behavior during sprint swimming, including sneak movement slowdown and ascent direction

• Restored normal Space-key ascent when not sprint swimming

• Fixed excessive swimming animation cadence and arm rotation after the swimming speed increase

• Fixed vanilla attack animations distorting swimming strokes by resetting shoulder pivots

• Fixed crawling under closing trapdoors by allowing compact prone collision bounds when the elongated hitbox is blocked by nearby walls

• Fixed the player's previous step height not being restored after crawling, including when entering water, flying, riding, or sleeping

• Lowered crouching eye height to 1.27 blocks so the player's eyes remain inside the 1.5-block crouching hitbox

• Improved server authority over player poses by preventing clients from directly supplying their own pose

• Fixed client and server pose states interfering with each other by storing them separately for each player entity

• Fixed active hitbox dimensions being overwritten by vanilla updates by reapplying them every tick

• Fixed remote player poses not always remaining synchronized on the client

• Fixed player poses not being sent when a player first becomes visible to another player

• Fixed rendering state potentially remaining corrupted after rendering errors by restoring the render matrix and custom-render guard safely

• Fixed animated skin overlays not remaining synchronized with custom animations

• Fixed custom rotations carrying over into normal vanilla animations

Changed

• Unified sprint swimming speed to 5.612 blocks/s (20.2032 km/h) in every direction at 20 ticks/s

• Updated swimming movement to use current client input while compensating for vanilla water acceleration

• Normalized diagonal swimming input

• Halved crawling and swimming animation cadence

• Updated swimming and crawling collision bounds to a 1.8 × 0.6 × 0.6 block prone collision envelope

• Prone collision bounds now follow horizontal facing, while blocked rotations retain the previous collision footprint

• Posture hitboxes are now reapplied at the end of each player tick after vanilla size updates

• Sneak input and its movement slowdown are now forced under ceilings below 1.5 blocks until enough standing space is available

• Forced crouching is now preserved when receiving synchronized pose updates

• Updated prone rendering to pivot around the torso above the player's shadow, including while looking up or down

• Updated the mod version to 1.6.0 and synchronized packaged metadata with the Gradle version

Minecraft 1.12.2
Forge 14.23.5.2864