By tapping sneak you will roll and get some knockback. The rolling direction will follow your movement direction, so you can roll backward. You can combine jump and roll to get a higher jump.
Now you have stamina, so when you run out of stamina your speed will be decreased, and cannot jump for a few seconds. Stamina will be consumed when you use roll, run, or jump. Stamina cooldown duration can be affected by potion player used like hunger effect will consume more stamina and speed effect will consume less stamina. Stamina will reset after sleeping.
A grappling hook is an item that can improve player movement and mobility. It can be customized with minecraft enchantment book. you can use a grappling hook by hold interact with items like using a trident or bow
Enchantment:
rope is an alternative version of scaffolding. rope can be created by attaching a lead to a tripwire hook. lead have some interaction by performing sneak, jump, or sneak + jump
Added a new stamina bar on the under of the experience bar, and a roll bar on the side of the health bar.