Javascript初學筆記17 小型專案練習-點擊音樂程式

Javascript 2 分

原本我應該是接續DOM的基本練習，不過今天在youtube上看到一個超有意思的教學影片，一步步照著做之後挺有成就感的! 在此做個簡單的紀錄。

我先補上HTML、CSS 跟JS的結構

HTML結構

 
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link
      href="https://fonts.googleapis.com/css?family=Raleway"
      rel="stylesheet"
    />
    <link rel="stylesheet" href="./style.css" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Tap Music</title>
  </head>
  <body>
    <section class="app">
      <header>
        <h1>Tap Music</h1>
        <p>Create sounds with just one tap</p>
      </header>
      <div class="visual"></div>
      <div class="pads">
        <div class="pad1">
          <audio src="./sounds/bubbles.mp3" class="sound"></audio>
        </div>
        <div class="pad2">
          <audio class="sound">
            <source src="./sounds/clay.mp3" />
          </audio>
        </div>
        <div class="pad3">
          <audio class="sound">
            <source src="./sounds/confetti.mp3" />
          </audio>
        </div>
        <div class="pad4">
          <audio class="sound">
            <source src="./sounds/glimmer.mp3" />
          </audio>
        </div>
        <div class="pad5">
          <audio class="sound">
            <source src="./sounds/moon.mp3" />
          </audio>
        </div>
        <div class="pad6">
          <audio class="sound">
            <source src="./sounds/ufo.mp3" />
          </audio>
        </div>
      </div>
    </section>

    <script src="index.js"></script>
  </body>
</html>

CSS樣式

 //reset
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Raleway", sans-serif;
}
--------------------------------------------------------------
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 50px 0px 30px 0px;
  text-align: center;
  font-size: 40px;
}
header p {
  font-size: 25px;
}

.pads {
  background: lightblue;
  width: 100%;
  display: flex;
}
.pads > div {
  height: 100px;
  width: 100px;
  flex: 1;
}
.pad1 {
  background: #60d394;
}
.pad2 {
  background: #d36060;
}
.pad3 {
  background: #c060d3;
}
.pad4 {
  background: #d3d160;
}
.pad5 {
  background: #606bd3;
}
.pad6 {
  background: #60c2d3;
}

.visual > div {
  position: absolute;
  bottom: 0%;
  height: 50px;
  width: 50px;
  border-radius: 50%;
  transform: scale(1);
  z-index: -1;
}

@keyframes jump {
  0% {
    bottom: 0%;
    left: 20%;
  }
  50% {
    bottom: 50%;
    left: 50%;
  }

  100% {
    bottom: 00%;
    left: 80%;
  }
}


JS部分

 
window.addEventListener("load", () => {
  const sounds = document.querySelectorAll(".sound");
  const pads = document.querySelectorAll(".pads div");
  const visual = document.querySelector(".visual");
  const colors = [
    "#60d394",
    "#d36060",
    "#c060d3",
    "#d3d160",
    "#606bd3",
    "#60c2d3"
  ];

  pads.forEach((pad, index) => {
    pad.addEventListener("click", function() {
      sounds[index].currentTime = 0;
      sounds[index].play();
      createBubble(index);
    });
  });

  const createBubble = index => {
    //Create bubbles
    const bubble = document.createElement("div");
    visual.appendChild(bubble);
    bubble.style.backgroundColor = colors[index];
    bubble.style.animation = `jump 1s ease`;
    bubble.addEventListener("animationend", function() {
      visual.removeChild(this);
    });
  };
});
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