[logic]
active = ph_idle@wait

[ph_idle@wait]
on_info = {+zat_b57_den_of_the_bloodsucker_place_gas_give -zat_b57_balon_use} ph_idle@use

[ph_idle@use]
on_use = {=actor_has_item(zat_b57_gas)} nil %+zat_b57_balon_use%
tips = zat_b57_balon_use_hint
