wtorek, 1 września 2015

Guess game - zgadnij numer

Jedną z najprostrzych gier, które może zrobić początkujący programista, jest zgadywanka losowego numeru. Biorąc się za bary z javascriptem, postanowiłem zrobić takąż grę. Całość dostępna jest na moim githubie (przynajmniej w momencie pisania tego posta). Niemniej wrzucam nieco nieuporząkowane kody poniżej.

Rzeczywiście kod jest nieco chaotyczny. Brak mi jeszcze wystarczającej wiedzy z zakresu inżynierii, planowania oraz doświadczenia. Niemniej - projekt jest malutki i działa.

html

<!DOCTYPE html>
<html>
<head>
    <meta lang="en">
    <meta charset="utf-8">
    <title>Guess game</title>
    <link rel="stylesheet" type="text/css" href="css/style.css">
    <link href='https://fonts.googleapis.com/css?family=Arimo:400,700' rel='stylesheet' type='text/css'>
    
</head>
<body>
    <div class="text-center" id="board">
        <div class="vbox" id="baner">
            <div class="vmiddle">
                <div class="vinner">
                    Guess game
                </div>
            </div>            
        </div>
        <div>
            <div id="output">Guess the number 1 - 100.</div>
            <input id="input" type="text" placeholder="Enter the number..." autofocus><br />
            <button id="button">Guess</button>
            <button id="again">Again?</button>
            <div id="state"></div>
            Last guess:
            <div id="history"></div>    
        </div>
    </div>
    <script type="text/javascript" src="js/script.js"></script>
</body>
</html>

css


/*  Guess game - style css   */

body, html { 
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%; }

body { 
    background-image: url('../images/bgr.png');
    font-family: 'Arimo', sans-serif;
}

button { 
    min-width: 150px;
    min-height: 40px;
    color: white;

}
button#button {
  background-color: #3D73FF;
}
button#again {
  background-color: red;
}
button:hover { 
    background-color: #325ED1;
}
button:active {
    background-color: #89AAFF;
}

.text-center {    
    margin: auto;    
    text-align: center;    
}

/*  Vertical align  */
.vbox {
    width: 100%;
  display: table;
  #position: relative;
  overflow: hidden;
}
.vmiddle {
    #position: absolute; #top: 50%; display: table-cell; vertical-align: middle;
}
.vinner {
    #position: relative; #top: -50%
}

.disabled { background-color: #417F2C;}

/* Basic structure */
#board {
    width: 400px;
    margin-top: 20px;
    border-radius: 0px;
    background-color: rgba(255, 254, 202, 0.6);    
    border-bottom: 2px solid #325ED1;
    border-top: 2px solid #FFF;    
    color: #222;
}

#baner {
  min-height: 50px;
  background: -webkit-linear-gradient(#89AAFF, #325ED1); /* For Safari 5.1 to 6.0 */
  background: -o-linear-gradient(#89AAFF, #325ED1); /* For Opera 11.1 to 12.0 */
  background: -moz-linear-gradient(#89AAFF, #325ED1); /* For Firefox 3.6 to 15 */
  background: linear-gradient(#89AAFF, #325ED1); /* Standard syntax */
  color: white;
  text-shadow: 2px 2px 0 #555;
  font-weight: bold;
  font-size: 20px;
}

#input {
    border-radius: 5px;
    min-height: 30px;
    text-align: center;
    margin: 0px;
}

#output { 
    margin: 10px;
}
#input { 
    margin: 10px;
}
#input:focus { 
    outline: none; 
    margin: 10px;
}
#state { 
    margin: 10px;
}
#history { 
    margin: 10px;
}

js

/////////////////////////////////////////////
// SIMPLE "GUESS A NUMBER" JAVASCRIPT GAME //
/////////////////////////////////////////////

//Game variables
var mysteryNumber = Math.floor((Math.random() * 100) + 1);
var playersGuess = 0;
var guessRemaining = 10;
var guessMade = 0;
var guessState = "";
var array = new Array;

//The input, output and other fields

var input = document.getElementById("input");
var output = document.getElementById("output");
var state = document.getElementById("state");
var egame = document.getElementById("endgame");
var hist = document.getElementById("history");

//The button

var buttonBtn = document.getElementById("button");
var againBtn = document.getElementById("again");
againBtn.style.display = "none";

//Listeners

buttonBtn.addEventListener("click", clickHandler, false);
againBtn.addEventListener("click", gameInit, false);
window.addEventListener("keydown", keydownHandler, false);

//Functions

function clickHandler() {
    validateInput();    
}

function keydownHandler(event) {

    if(event.keyCode === 13) {
        validateInput();
    }    

}

function validateInput() {

    playersGuess = parseInt(input.value);
    
    if (isNaN(playersGuess)) {
        output.innerHTML = "Give me a number value!";
        input.value="";
    } else {
        playGame();
    }

}

function playGame() {

    guessRemaining--;
    guessMade++;    
    guessState = " Guess: " + guessMade + ". Remaining: " + guessRemaining + ".";
    state.innerHTML = guessState;
    
    // history of inputs
    hist.innerHTML = "";
    array.push(input.value);
    for (i = array.length-1; i>-1; i--) {
        hist.innerHTML = hist.innerHTML + array[i] + "<br/>";
    }

    if (guessRemaining<=0) {
        endGame(false);
    } else {    
        if(playersGuess > mysteryNumber)   {
            output.innerHTML = "That's too high.";                           
        } else if(playersGuess < mysteryNumber) {
            output.innerHTML = "That's too low.";            
        } else if(playersGuess === mysteryNumber) {
            endGame(true);
        }
    }

    input.value="";

}

function endGame(verdict) {
    
    window.removeEventListener("keydown", keydownHandler, false);
    buttonBtn.style.display = "none";
    againBtn.style.display = "";    


    input.disabled=true;            
    input.setAttribute("placeholder", "End");

    if (verdict) {
        output.innerHTML = "Got it!";        
        var audio = new Audio('audio/yeah.mp3');
        audio.play();
    } else {
        input.setAttribute("placeholder", mysteryNumber);
        output.innerHTML = "Looooser!";
        var audio = new Audio('audio/farting.mp3');
        audio.play();
    }

}

function gameInit () {

    window.addEventListener("keydown", keydownHandler, false);
    buttonBtn.style.display = "";
    againBtn.style.display = "none";
    input.disabled=false;
    input.setAttribute("placeholder", "Enter the number...");
    output.innerHTML = "Guess the number 1 - 100.";

    hist.innerHTML = "";
    for (var i = array.length - 1; i >= 0; i--) {
        array.pop();
    };
    
    mysteryNumber = Math.floor((Math.random() * 100) + 1);
    playersGuess = 0;
    guessRemaining = 10;
    guessMade = 0;
    guessState = " Guess: " + guessMade + ". Remaining: " + guessRemaining + ".";
    state.innerHTML = guessState;

    input.focus();
   
}

images
poniżej znajduje się obrazek tła, ale ma 5x5 px, więc ledwie go widać...
 

G