BishBosh.Time.GameClock

AUTHOR

Dr. Alistair Ward

DESCRIPTION

Defines two stop-watches, exactly one of which is running at any time.

Types

Data-types

data GameClock

Models a game-clock, in which each player owns a personal stop-watch, exactly one of which is running at any one time.

Instances

SelfValidating GameClock

Defined in BishBosh.Time.GameClock

Methods

findInvalidity :: GameClock -> [String]

Switchable GameClock

Defined in BishBosh.Time.GameClock

Methods

on :: IO GameClock

toggle :: GameClock -> IO GameClock

switchOff :: GameClock -> IO GameClock

isOn :: GameClock -> Bool

isOff :: GameClock -> Bool

Functions

showsElapsedTimes :: NDecimalDigits -> GameClock -> IO ShowS

Show the elapsed times.