JS Drum Kit

위풍당당수·2023년 11월 23일

Javascript30

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소스코드

html 및 css는 강의에서 제공

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>JS Drum Kit</title>
    <link rel="stylesheet" href="style.css" />
    <link rel="icon" href="https://fav.farm/🔥" />
  </head>
  <body>
    <div class="keys">
      <div data-key="65" class="key">
        <kbd>A</kbd>
        <span class="sound">clap</span>
      </div>
      <div data-key="83" class="key">
        <kbd>S</kbd>
        <span class="sound">hihat</span>
      </div>
      <div data-key="68" class="key">
        <kbd>D</kbd>
        <span class="sound">kick</span>
      </div>
      <div data-key="70" class="key">
        <kbd>F</kbd>
        <span class="sound">openhat</span>
      </div>
      <div data-key="71" class="key">
        <kbd>G</kbd>
        <span class="sound">boom</span>
      </div>
      <div data-key="72" class="key">
        <kbd>H</kbd>
        <span class="sound">ride</span>
      </div>
      <div data-key="74" class="key">
        <kbd>J</kbd>
        <span class="sound">snare</span>
      </div>
      <div data-key="75" class="key">
        <kbd>K</kbd>
        <span class="sound">tom</span>
      </div>
      <div data-key="76" class="key">
        <kbd>L</kbd>
        <span class="sound">tink</span>
      </div>
    </div>

    <audio data-key="65" src="sounds/clap.wav"></audio>
    <audio data-key="83" src="sounds/hihat.wav"></audio>
    <audio data-key="68" src="sounds/kick.wav"></audio>
    <audio data-key="70" src="sounds/openhat.wav"></audio>
    <audio data-key="71" src="sounds/boom.wav"></audio>
    <audio data-key="72" src="sounds/ride.wav"></audio>
    <audio data-key="74" src="sounds/snare.wav"></audio>
    <audio data-key="75" src="sounds/tom.wav"></audio>
    <audio data-key="76" src="sounds/tink.wav"></audio>
  </body>
</html>

html {
  font-size: 10px;
  background: url("./background.jpg") bottom center;
  background-size: cover;
}

body,
html {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

.keys {
  display: flex;
  flex: 1;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}

.key {
  border: 0.4rem solid black;
  border-radius: 0.5rem;
  margin: 1rem;
  font-size: 1.5rem;
  padding: 1rem 0.5rem;
  transition: all 0.07s ease;
  width: 10rem;
  text-align: center;
  color: white;
  background: rgba(0, 0, 0, 0.4);
  text-shadow: 0 0 0.5rem black;
}

.playing {
  transform: scale(1.1);
  border-color: #ffc600;
  box-shadow: 0 0 1rem #ffc600;
}

kbd {
  display: block;
  font-size: 4rem;
}

.sound {
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  color: #ffc600;
}

function playSound(e) {
	const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
	const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
	if (!audio) return; // keyCode와 일치하는 엘리먼트 없으면 함수 종료
	audio.currentTime = 0; // 처음으로 되감기
	audio.play();
	key.classList.add("playing");
}

 function removeTransition(e) {
	if (e.propertyName !== "transform") return; // 'transform'이 아닌 propertyName은 생략
	console.log(e.propertyName);
	this.classList.remove("playing");
}

const keys = document.querySelectorAll(".key");
keys.forEach((key) =>
	key.addEventListener("transitionend", removeTransition)
);
window.addEventListener("keydown", playSound);