on sneak toggle:
　　if {fall.%player%} is not set:
　　　　set {fall.%player%} to 0
　　{fall.%player%} is 0
　　player has feather of Feather Falling
　　block below location of player is air
　　push player upwards at speed 0.5
　　push player horizontally forwards at speed 0.7
　　set {fall.%player%} to 1
　　while block below location of player is air:
　　　　wait 3 ticks
　　set {fall.%player%} to 0

on damage:
　　victim has feather of Feather Falling
　　damage was caused by fall
　　cancel event