Times Table game

Simple times table console based game.

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(helper functions omitted)

let play times = 
    for s in ["Get Ready";"3";"2";"1";"Go"] do 
        printfn "%s" s
        wait 1000
    let begun = now ()
    [1..times] |> Seq.sumBy (fun x ->
        let a, b = rand.Next 13, rand.Next 13
        printf "%d x %d = " a b
        let entered = readln ()
        match System.Int32.TryParse entered with
        | true, answer when answer = a * b -> 
            using green (fun () -> printfn "Correct")
            1
        | _, _ ->
            beep ()
            using red (fun () -> printfn "%d x %d = %d" a b (a*b))
            0
    )
    |> (fun score ->
        let taken = (now() - begun).ToString("c")
        printfn "%d correct out of %d in %s" score times taken
    )

while true do 
    play 20
    wait 5000
    printfn "Hit a key to play again?"
    readkey () |> ignore

open System
let readln () = Console.ReadLine()
let readkey () = Console.ReadKey()
let using color f =
    Console.ForegroundColor <- color
    f ()
    Console.ResetColor ()
let red = ConsoleColor.Red
let green = ConsoleColor.Green
let beep () = Console.Beep ()
let wait (n:int) = Threading.Thread.Sleep n
let now () = DateTime.Now
let rand = Random()

val play : times:int -> unit

Full name: Script.play

val times : int

val s : string

val printfn : format:Printf.TextWriterFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.printfn

val wait : n:int -> unit

Full name: Script.wait

val begun : DateTime

val now : unit -> DateTime

Full name: Script.now

module Seq

from Microsoft.FSharp.Collections

val sumBy : projection:('T -> 'U) -> source:seq<'T> -> 'U (requires member ( + ) and member get_Zero)

Full name: Microsoft.FSharp.Collections.Seq.sumBy

val x : int

val a : int

val b : int

val rand : Random

Full name: Script.rand

Random.Next() : int
Random.Next(maxValue: int) : int
Random.Next(minValue: int, maxValue: int) : int

val printf : format:Printf.TextWriterFormat<'T> -> 'T

Full name: Microsoft.FSharp.Core.ExtraTopLevelOperators.printf

val entered : string

val readln : unit -> string

Full name: Script.readln

namespace System

type Int32 =
  struct
    member CompareTo : value:obj -> int + 1 overload
    member Equals : obj:obj -> bool + 1 overload
    member GetHashCode : unit -> int
    member GetTypeCode : unit -> TypeCode
    member ToString : unit -> string + 3 overloads
    static val MaxValue : int
    static val MinValue : int
    static member Parse : s:string -> int + 3 overloads
    static member TryParse : s:string * result:int -> bool + 1 overload
  end

Full name: System.Int32

Int32.TryParse(s: string, result: byref<int>) : bool
Int32.TryParse(s: string, style: Globalization.NumberStyles, provider: IFormatProvider, result: byref<int>) : bool

val answer : int

val using : color:ConsoleColor -> f:(unit -> unit) -> unit

Full name: Script.using

val green : ConsoleColor

Full name: Script.green

val beep : unit -> unit

Full name: Script.beep

val red : ConsoleColor

Full name: Script.red

val score : int

val taken : string

val readkey : unit -> ConsoleKeyInfo

Full name: Script.readkey

val ignore : value:'T -> unit

Full name: Microsoft.FSharp.Core.Operators.ignore

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More information

Link:	http://fssnip.net/8u
Posted:	13 years ago
Author:	Phillip Trelford
Tags:	console , game