drum-kit/script.js at main · zeolee01/drum-kit · GitHub

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// DETECTING BUTTON PRESS
var len = document.querySelectorAll(".drum").length
for (var i = 0; i < len; i++) {
  document.querySelectorAll(".drum")[i].addEventListener("click", function () {
    var button_pressed = this.innerHTML
    keyChecker(button_pressed)
    buttonAnimation(button_pressed)
  })
}

// DETECTING KEYBOARD PRESS
document.addEventListener("keydown", function (event) {
  keyChecker(event.key)
  buttonAnimation(event.key)
})

function keyChecker(key) {
  switch (key) {
    case "w":
      var voice = new Audio("sounds/tom-1.mp3")
      voice.play()
      break

    case "a":
      var voice = new Audio("sounds/tom-2.mp3")
      voice.play()
      break

    case "s":
      var voice = new Audio("sounds/tom-3.mp3")
      voice.play()
      break

    case "d":
      var voice = new Audio("sounds/tom-4.mp3")
      voice.play()
      break
    case "j":
      var voice = new Audio("sounds/snare.mp3")
      voice.play()
      break

    case "k":
      var voice = new Audio("sounds/crash.mp3")
      voice.play()
      break

    case "l":
      var voice = new Audio("sounds/kick-bass.mp3")
      voice.play()
      break

    default:
      break
  }
}

function buttonAnimation(key) {
  var activeBuuton = document.querySelector("." + key)
  activeBuuton.classList.add("pressed")

  setTimeout(() => {
    activeBuuton.classList.remove("pressed")
  }, 100)
}