[코드카데미/CODECADEMY] Piano Keys

Java Script

[코드카데미/CODECADEMY] Piano Keys

Jassy 2020. 8. 3. 15:33

<html>

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <link rel="stylesheet" href="style.css">
</head>

<body>
  <p class='title'>Piano Player</p>
  <p id='demo'>Follow the song below to play  the piano.</p>
  <section class="piano">
    <section id='c-key' class="key">
      <section class='keynote'>C</section>
    </section>
    <section id='c-sharp-key' class="black-key">
      <section class='black-keynote'>C#</section>
    </section>
    <section id='d-key' class="key">
      <section class='keynote'>D</section>
    </section>
    <section id='d-sharp-key' class="black-key">
      <section class='black-keynote'>D#</section>
    </section>
    <section id='e-key' class="key">
      <section class='keynote'>E</section>
    </section>
    <section id='f-key' class="key">
      <section class='keynote'>F</section>
    </section>
    <section id='f-sharp-key' class="black-key">
      <section class='black-keynote'>F#</section>
    </section>
    <section id='g-key' class="key">
      <section class='keynote'>G</section>
    </section>
    <section id='g-sharp-key' class="black-key">
      <section class='black-keynote'>G#</section>
    </section>
    <section id='a-key' class="key">
      <section class='keynote'>A</section>
    </section>
    <section id='a-sharp-key' class="black-key">
      <section class='black-keynote'>A#</section>
    </section>
    <section id='b-key' class="key">
      <section class='keynote'>B</section>
    </section>
    <section id='high-c-key' class="key">
      <div class='keynote'>C</div>
    </section>
  </section>

  <section id='lyrics'>
    <section id='column-one'>
      <section id="word-one">HAP-</section>
      <section id="letter-note-one">G</section>
    </section>
    <section id='column-two'>
      <section id="word-two">PY</section>
      <section id="letter-note-two">G</section>
    </section>
    <section id='column-three'>
      <section id="word-three">BIRTH-</section>
      <section id="letter-note-three">A</section>
    </section>
    <section id='column-four'>
      <section id="word-four">DAY</section>
      <section id="letter-note-four">G</section>
    </section>
    <section id='column-five'>
      <section id="word-five">TO</section>
      <section id="letter-note-five">C</section>
    </section>
    <section id='column-six'>
      <section id="word-six">YOU</section>
      <section id="letter-note-six">B</section>
    </section>
    <section id='column-optional' class='column-optional'>
      <section id="word-optional">END</section>
      <section id="letter-note-optional">A</section>
    </section>

    <button id="first-next-line">Line 2</button>
    <button id="second-next-line">Line 3</button>
    <button id="third-next-line">Line 4</button>
    <button id="fourth-next-line">Reset</button>
  </section>

  <script  src="main.js"></script>

</body>
</html>

<css>

body{
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background: #ffc63f;
}
.title{
  font-size: 36px;
  margin-top: 10px;
  margin-bottom: 0px;
  padding: 0;
  color: #141c3a;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-align: center;
}
#demo{
  text-align: center;
  font-size: 18px;
  margin-top: 15px;
  color: #141c3a;
  letter-spacing: 1px;
  font-style: italic;
}
.piano{
  width: 305px;
  height: 210px;
  display: block;
  margin: 0 auto;
  background-color: #fd4d3f;
  margin-top: 30px;
}
.key{
  width: 30px;
  height: 200px;
  display: inline-block;
  border: solid #141c3a 2px;
  box-shadow: 2px 5px;
  background-color: white;
  color: #141c3a;
}
.black-key{
  width: 25px;
  height: 100px;
  display: inline-block;
  background-color: #141c3a;
  color: white;
  position: absolute;
  margin-left: -12px;
  padding: 0px;
}
.keynote{
  width: 20px;
  height: 20px;
  text-align: center;
  display: block;
  margin: 0 auto;
  margin-top: 175px;
  color: #141c3a;
}
.black-keynote{
  width: 20px;
  height: 20px;
  text-align: center;
  display: block;
  margin: 0 auto;
  margin-top: 75px;
}
#lyrics{
  width: 400px;
  height: 240px;
  display: block;
  margin: 0 auto;
  padding-left: 20px;
  margin-top: 50px;
  background-color: #fd4d3f;
}
#column-one, #column-two, #column-three, #column-four, #column-five, #column-six, #column-optional{
  width: 90px;
  display: inline-block;
  text-align: center;
  margin-top: 30px;
}
#column-optional{
  display: none;
}
#word-one, #word-two, #word-three, #word-four, #word-five, #word-six, #word-optional{
  background-color: white;
  width: 90px;
  height: 25px;
  padding-top: 10px;
  letter-spacing: 5px;
  color: #141c3a;
}
#letter-note-one, #letter-note-two, #letter-note-three, #letter-note-four, #letter-note-five, #letter-note-six, #letter-note-optional{
  color: white;
  width: 25px;
  height: 25px;
  margin-top: 15px;
  margin-left: 35px;
}
#first-next-line, #second-next-line, #third-next-line, #fourth-next-line{
  width: 80px;
  height: 40px;
  font-size: 16px;
  position: absolute;
  margin-top: 30px;
  margin-left: 10px;
  border: none;
  background-color: #ffc63f;
  color: #141c3a;
  letter-spacing: 1px;
  cursor: pointer;
}

// The keys and notes variables store the piano keys
const keys = ['c-key', 'd-key', 'e-key', 'f-key', 'g-key', 'a-key', 'b-key', 'high-c-key', 'c-sharp-key', 'd-sharp-key', 'f-sharp-key', 'g-sharp-key', 'a-sharp-key'];
const notes = [];
keys.forEach(function(key){
  notes.push(document.getElementById(key));
})

// Write named functions that change the color of the keys below
const keyPlay = function (event)  {
  event.target.style.backgroundColor = 'red';
};

const keyReturn = function (event)  {
  event.target.style.backgroundColor = '';
};

// Write a named function with event handler properties
const eventAssignment = function (note) {
  note.onmousedown = function() { keyPlay(event); };
  note.onmouseup = function() { keyReturn(event); };
}


// Write a loop that runs the array elements through the function
notes.forEach(eventAssignment);

// These variables store the buttons that progress the user through the lyrics
let nextOne = document.getElementById('first-next-line');
let nextTwo = document.getElementById('second-next-line');
let nextThree = document.getElementById('third-next-line');
let startOver = document.getElementById('fourth-next-line');

// This variable stores the '-END' lyric element
let lastLyric = document.getElementById('column-optional');

// These statements are "hiding" all the progress buttons, but the first one
nextTwo.hidden = true;
nextThree.hidden = true;
startOver.hidden= true;

// Write anonymous event handler property and function for the first progress button
nextOne.onclick = function () {
  nextTwo.hidden = false;
  nextOne.hidden = true;
  document.getElementById('letter-note-five').innerHTML = 'D';   
  document.getElementById('letter-note-six').innerHTML = 'C'; 
}



// Write anonymous event handler property and function for the second progress button
nextTwo.onclick = function () {
  nextThree.hidden = false;
  nextTwo.hidden = true;
  document.getElementById('word-five').innerHTML = 'DEAR'
  document.getElementById('word-six').innerHTML = 'FRI-'
  lastLyric.style.display = 'inline-block';
  document.getElementById('letter-note-three').innerHTML = 'G'
  document.getElementById('letter-note-four').innerHTML = 'E'
  document.getElementById('letter-note-five').innerHTML = 'C'
  document.getElementById('letter-note-six').innerHTML = 'B'
}

// Write anonymous event handler property and function for the third progress button
nextThree.onclick = function () {
  startOver.hidden = false;
  nextThree.hidden = true;
  document.getElementById('word-one').innerHTML = 'HAP-';
  document.getElementById('word-two').innerHTML = 'PY'  ;
  document.getElementById('word-three').innerHTML = 'BIRTH';
  document.getElementById('word-four').innerHTML = 'DAY'  ;
  document.getElementById('word-five').innerHTML = 'TO';
  document.getElementById('word-six').innerHTML = 'YOU!';
  document.getElementById('letter-note-one').innerHTML = 'F';
  document.getElementById('letter-note-one').innerHTML = 'F';
  document.getElementById('letter-note-two').innerHTML = 'F';
  document.getElementById('letter-note-three').innerHTML = 'E';
  document.getElementById('letter-note-four').innerHTML = 'C';
  document.getElementById('letter-note-five').innerHTML = 'D';
  document.getElementById('letter-note-six').innerHTML = 'C';
  lastLyric.style.display = 'none';
}

// This is the event handler property and function for the startOver button
startOver.onclick = function() {
  nextOne.hidden = false;
  startOver.hidden = true;
   document.getElementById('word-one').innerHTML = 'HAP-';
  document.getElementById('letter-note-one').innerHTML = 'G';
  document.getElementById('word-two').innerHTML = 'PY';
  document.getElementById('letter-note-two').innerHTML = 'G';
  document.getElementById('word-three').innerHTML = 'BIRTH-';
  document.getElementById('letter-note-three').innerHTML = 'A';
  document.getElementById('word-four').innerHTML = 'DAY';
  document.getElementById('letter-note-four').innerHTML = 'G';
  document.getElementById('word-five').innerHTML = 'TO';
  document.getElementById('letter-note-five').innerHTML = 'C';
  document.getElementById('word-six').innerHTML = 'YOU!';
  document.getElementById('letter-note-six').innerHTML = 'B';
}