on join:
    set the join message to "&8[&a&l+&8]&7%player%"

on first join:
    set the join message to "&8[&d&l+&8]&7%player%"

on quit:
    set the quit message to "&8[&c&l-&8]&7%player%"

on explode:
    cancel event

on craft:
    player do not have permission "skript.admin"
    cancel event

on burn:
    cancel event

on damage:
    damage was caused by fall
    cancel event