def gen.row_state
import minebender-game@1.0.0.0/game.bend as Gameimport Base
import minebender-game@1.0.0.0/types.bend as T
178# The state after a row.
179def gen.row_state(+z: Zone, +y: Nat, xs: List<&2, Nat>, +st: GenState) -> GenState:
180 match xs:
181 case Nil{}:
182 st
183 case x <> t:
184 gen.row_state(z, y, t, gen.next(z, T.Pos{x, y}, st))