Rozbot/lib/commands/Hangman.js
2016-08-17 16:06:10 -04:00

112 lines
3.4 KiB
JavaScript

var Command = require('./Command.js');
var fetch = require('../promise/fetch.js');
var cheeriop = require('../promise/cheerio.js');
var promise = require('promise-polyfill');
var grabTokens = require('../helpers/grabTokens.js');
var condition = function(text, userData) {
var tokens = grabTokens(text);
return tokens.contain('play') && tokens.contain('hangman') && (tokens.contain("rozbot") || userData.privateMessage);
}
module.exports = new Command("Hangman", condition, function(text, send, userData) {
var GUESSES_ALLOWED = 7;
//Lets get a random word!
send("I'm thinking of a word...");
//Grabs headline of random page
var grabHeadline = function(html) {
return new promise(function(resolve, reject) {
cheeriop(html).then(function($) {
var response = $('#headword').text().trim()
if (response) {
resolve(response);
} else {
reject("");
}
}).catch(function(error) {
console.log(error);
reject("");
})
});
}
//Recursive guessing letters until person loses or wins
var guessLetter = function() {
var correctLetters = userData.getProperty("correctLetters");
var guessedLetters = userData.getProperty("guessedLetters");
var word = userData.getProperty("word");
var numOfUniqueLetters = userData.getProperty("numOfUniqueLetters");
if (correctLetters.length === numOfUniqueLetters) {
send("You win!!");
return;
}
if (guessedLetters.length - correctLetters.length > GUESSES_ALLOWED) {
send("You lose...");
send("The word was " + word);
return;
}
return new promise(function(resolve, reject) {
userData.prompt("Guess a letter").then(function(letter) {
if (letter.length != 1) {
send("You can only guess one letter at a time");
} else {
if (guessedLetters.indexOf(letter) !== -1) {
send("You already guessed this letter");
} else {
if (word.toLowerCase().indexOf(letter.toLowerCase()) !== -1) {
send("The letter is in the word!");
correctLetters.push(letter);
} else {
send("The letter is not in the word..");
}
//Push letter to lettersGuessed array and send the part of the word guessed so far.
guessedLetters.push(letter);
send(revealKnownCharacters(word, correctLetters));
}
}
return;
}).then(function() { resolve(guessLetter()) }).catch(function(e) { console.log(e); reject(e); });
});
}
//Shows player word with __ and known letters
var revealKnownCharacters = function(word, lettersArray) {
return word.split('').map(function(item) {
return (lettersArray.indexOf(item) !== -1)? item: "_";
}).join('');
}
//Counts the number of unique letters in a word
var countUniqueLetters = function(word) {
var letters = [];
for (var i = 0; i < word.length; i++) {
if (letters.indexOf(word[i]) === -1) {
letters.push(word[i]);
}
}
return letters.length;
}
//Grab a random word from wordnik and start the game
fetch("https://wordnik.com/randoml", {rejectUnauthorized: false}).then(function(res) {
origin = res.meta.finalUrl;
return grabHeadline(res.body.toString());
}).then(function(word) {
send("The word is " + word.length + " letters long");
//Setup game variables
userData.setProperty("word", word);
userData.setProperty("numOfUniqueLetters", countUniqueLetters(word));
userData.setProperty("correctLetters", []);
userData.setProperty("guessedLetters", []);
//start
guessLetter();
}).catch(function(error) {
send(error);
});
});