LAWS.custom: def of minebender-game@1.0.0.0
Import: import minebender-game@1.0.0.0/LAWS.bend as LAWS
Lines 517-522 of minebender-game@1.0.0.0/LAWS.bend: https://jend.leeeet.dev/read.txt?path=minebender-game@1.0.0.0/LAWS.bend&start_line=517&end_line=522

import Base
import minebender-game@1.0.0.0/types.bend as T

# Windows XP's Custom Field dialog: width is clamped to 9..30, height to
# 9..25 and mines to 10..999, then mines are capped at width*height - 10.
def custom(w: Nat, h: Nat, m: Nat) -> T.Setup:
  +cw = clamp(9n, 30n, w)
  +ch = clamp(9n, 25n, h)
  T.Setup{cw, ch, Nat.min(clamp(10n, 999n, m), Nat.sub(Nat.mul(cw, ch), 10n))}

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.min
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/LAWS.bend&name=clamp
  https://jend.leeeet.dev/definition.txt?path=minebender-game@1.0.0.0/types.bend&name=Setup