Sneak setting to prevent flying down

[Alexander01998]

It should be possible for Sneak to detect when the player is flying through either Creative Mode or a Wurst hack.

When detected, Sneak could press shift and space together to make the player sneak without flying down. Though this would still prevent the player from flying up while Sneak is enabled.

Alternatively, Sneak could simply not sneak while flying at all. This would not mess with flying mechanics, but could cause the player to get detected unexpectedly. This should definitely be optional, disabled by default, and have some kind of visual indicator when it's active.