if {_r} contains "##need ":
      replace all "##need " in {_r} with ""
      set {_i} to uncolored {_r} parsed as items
      if number of {_i} in {_p}'s inventory < item amount of {_i}:
        set {_error} to ""
        loop {_error::*}:
          set {_error} to "%{_error}%%loop-value-2%"
          gui_run({_p}, {_error})
        stop
      continue