0.9.0 • Published 8 years ago

rpsls v0.9.0

Weekly downloads
70
License
SEE LICENSE IN LI...
Repository
github
Last release
8 years ago

rpsls

Build Status Coverage Status npm

The canonical rock-paper-scissors-lizard-spock library.

Installation

npm i --save rpsls

Usage

Import library

The default export is a class with only static members.

import R from 'rpsls'

static members

The class will contain the following static members. See the explanation for each member in the sections below.

  • TIE
  • PLAYER1
  • PLAYER2
  • ROCK
  • PAPER
  • SCISSORS
  • LIZARD
  • SPOCK
  • getMoveName
  • play

Moves

The five moves in the game are accessed via static getters. They are aliases for the number 0 through 4.

console.log(
  R.ROCK,     //0
  R.PAPER,    //1
  R.SCISSORS, //2
  R.LIZARD,   //3
  R.SPOCK     //4  
);

Outcomes

The three outcomes of the game are static getters. They are aliases for the numbers 0, 1, and 2.

console.log(
  R.TIE,     //0
  R.PLAYER1, //1
  R.PLAYER2  //2
);

play

The static play method requires two parameters that represent the moves for player 1 and player 2 respectively. An object will be returned with the details of the game. The structure of the return object varies slightly depending upon whether the game is a tie or not.

Returned object for a TIE

let game = R.play(R.ROCK, R.ROCK);

//game will look like this
{
  outcome: 0,  //TIE
  result: "rock vs rock is a tie"
}

Returned object for a NON-TIE

let game = R.play(R.SPOCK, R.LIZARD);

//game will look like this
{
  outcome: 2,  //PLAYER2
  winner: 3,   //LIZARD
  loser: 4,    //SPOCK
  method: 'poisons'
  result: 'lizard poisons spock'
}

getMoveName

The static getMoveName method takes a single parameter that represents a move. A string will be returned that is the readable name of the given move.

R.getMoveName(R.SPOCK);  //'spock'
R.getMoveName(4);        //'spock'

Error Handling

Both play and getMoveName with throw an error if anything besides the integer numeric values of 0, 1, 2, 3, 4 are passed to them.

R.play(R.ROCK, 'foo');  //error
R.play(R.ROCK, '2');    //error
R.play(R.ROCK, 1.1);    //error
R.play(R.ROCK, 5);      //error
R.getMoveName('bar');   //error
R.getMoveName('2');     //error
R.getMoveName(1.1);     //error
R.getMoveName(5);       //error

Dev Process

This serves as a reminder to myself of how to develop this project.

  • clone repo
  • npm i
  • npm run typings
  • edit .ts/.spec.ts
  • npm run build
  • npm test
  • update npm version
  • commit
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