FCC - Front End Libraries Projects - Build a Drum Machine

fcc-front-end-libraries-projects-build-a-drum-machine.markdown

FCC - Front End Libraries Projects - Build a Drum Machine

User Story #1: I should be able to see an outer container with a corresponding id="drum-machine" that contains all other elements. User Story #2: Within #drum-machine I can see an element with a corresponding id="display". User Story #3: Within #drum-machine I can see 9 clickable drum pad elements, each with a class name of drum-pad, a unique id that describes the audio clip the drum pad will be set up to trigger, and an inner text that corresponds to one of the following keys on the keyboard: Q, W, E, A, S, D, Z, X, C. The drum pads MUST be in this order. User Story #4: Within each .drum-pad, there should be an HTML5 audio element which has a src attribute pointing to an audio clip, a class name of clip, and an id corresponding to the inner text of its parent .drum-pad (e.g. id="Q", id="W", id="E" etc.). User Story #5: When I click on a .drum-pad element, the audio clip contained in its child audio element should be triggered. User Story #6: When I press the trigger key associated with each .drum-pad, the audio clip contained in its child audio element should be triggered (e.g. pressing the Q key should trigger the drum pad which contains the string "Q", pressing the W key should trigger the drum pad which contains the string "W", etc.). User Story #7: When a .drum-pad is triggered, a string describing the associated audio clip is displayed as the inner text of the #display element (each string must be unique).

A Pen by Matthew Relph on CodePen.

License.

index.html

<div id="drum-machine" class="container">
	<div class="row">
		<div class="col"></div>
		<div  id="display" class="col-10 border border-success bg-dark">
			<div  class="row">
					<div id="buttons" class="col bg-light">
						<div class="row buttonRow">
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Qbutton" class="btn btn-primary btn-lg btn-block drum-pad">Q
									<audio id="Q" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Qmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Wbutton" class="btn btn-primary btn-lg btn-block drum-pad">W
									<audio id="W" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Wmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
							<div class="col-3 ">
								<button id="Ebutton" class="btn btn-primary btn-lg btn-block drum-pad">E
									<audio id="E" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Emorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
						</div>
						<div class="row buttonRow">
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Abutton" class="btn btn-primary btn-lg btn-block drum-pad">A
									<audio id="A" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Amorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Sbutton" class="btn btn-primary btn-lg btn-block drum-pad">S
									<audio id="S" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Smorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
							<div class="col-3 ">
								<button id="Dbutton" class="btn btn-primary btn-lg btn-block drum-pad">D
									<audio id="D" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Dmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
						</div>
						<div class="row buttonRow">
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Zbutton" class="btn btn-primary btn-lg btn-block drum-pad">Z
									<audio id="Z" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Zmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>
							<div class="col-3 ">
								<button id="Xbutton" class="btn btn-primary btn-lg btn-block drum-pad">X
									<audio id="X" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Xmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
							<div class="col-3 ">
								<button id="Cbutton" class="btn btn-primary btn-lg btn-block drum-pad">C
									<audio id="C" preload="auto" class="clip" src="https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Cmorsecode.wav">
									</audio>
								</button>
							</div>
							<div class="col"></div>					
						</div>						
					</div>
					<div id="controls" class="col ">
						<div id="titleRow" class="row h3 bg-success">
							<div class="col text-center">
								Welcome to the Morse Code Drum Machine
							</div>
						</div>
						<div class="row bg-warning ">
							<div class="col text-left">								
								Last Sound:
							</div>								
						</div>						
						<div id="descriptionRow" class="row bg-info">
							<div id="description" class="col text-left">								
								Nothing
							</div>								
						</div>
						
					</div>
			</div>
			<div class="row"></div>
			<div class="row"></div>
		</div>
		<div class="col"></div>		
	</div>

</div>


<!-- Uses https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js for testing -->
<!-- Uses https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css for bootstrap -->
<!-- Uses https://use.fontawesome.com/releases/v5.5.0/css/all.css for font awesome -->
<!-- Uses https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js for JQuery JS -->

script.js

//Font Awesome CSS - https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css
//Bootstrap CSS - https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css
//JQuery JS - https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js
//Bootstrap JS - https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js


/*This is a simple "Drum Machine" which plays sound clips when you press buttons.*/

/*
var audioFiles = [
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Qmorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Wmorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Emorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Amorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Smorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Dmorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Zmorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Xmorsecode.wav",
"https://res.cloudinary.com/dlqvbphtt/video/upload/v1544675188/Cmorsecode.wav"
];
*/

var audioInfo = [
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: --.- <br/> Original Text: Q",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: .-- <br/> Original Text: W",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: . <br/> Original Text: E",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: .- <br/> Original Text: A",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: ... <br/> Original Text: S",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: -.. <br/> Original Text: D",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: --.. <br/> Original Text: Z",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: -..- <br/> Original Text: X",
"Speed: 10WPM / Tone: 1000Hz <br/> Dots and Dashes: -.-. <br/> Original Text: C"
];

var buttonList = ['Q','W','E','A','S','D','Z','X','C'];

$(document).ready(function()
{
	$(document).keydown( function(event) 
	{
		switch (String.fromCharCode(event.which)) 		//Capture the correct button presses
		{
			case 'Q':
			case 'q':
				playAudio(0);
				break;
			case 'W':
			case 'w':
				playAudio(1);
				break;
			case 'E':
			case 'e':
				playAudio(2);
				break;
			case 'A':
			case 'a':
				playAudio(3);
				break;
			case 'S':
			case 's':
				playAudio(4);
				break;
			case 'D':
			case 'd':
				playAudio(5);
				break;
			case 'Z':
			case 'z':
				playAudio(6);
				break;
			case 'X':
			case 'x':
				playAudio(7);
				break;			
			case 'C':
			case 'c':
				playAudio(8);
				break;	
			//default:							//Only for testing - Send keypresses to the console
				//console.log(event.which);
		};
	});
	
	//Capture the mouse clicks
	$('#Qbutton').click(function() {
		playAudio(0);
	});
	
		
	$('#Wbutton').click(function() {
		playAudio(1);
	});
		
	$('#Ebutton').click(function() {
		playAudio(2);
	});
		
	$('#Abutton').click(function() {
		playAudio(3);
	});
		
	$('#Sbutton').click(function() {
		playAudio(4);
	});
		
	$('#Dbutton').click(function() {
		playAudio(5);
	});
		
	$('#Zbutton').click(function() {
		playAudio(6);
	});
		
	$('#Xbutton').click(function() {
		playAudio(7);
	});
		
	$('#Cbutton').click(function() {
		playAudio(8);
	});
		
});

function playAudio(clip)
{	
	//console.log(clip);	//Testing for correct button press
	//console.log(audioInfo[clip]);	//Testing for correct audio file info
	$('#description').empty();
	$('#description').append(audioInfo[clip]);	
	document.getElementById(buttonList[clip]).play();
	
	
}

scripts

<script src="https://cdn.freecodecamp.org/testable-projects-fcc/v1/bundle.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

style.css

body{
  margin-top: 100px;
}


#buttons{
  margin : 5px;
}

.buttonRow{
  margin-top : 10px;
  margin-bottom : 10px;  
}

button{
  min-height : 75px;
}

#titleRow{
  margin:3px;
  
}

#descriptionRow{
  padding : 5px;
  margin : 5px;
  min-height:50%;
  
  /*height : 100%;
  width : 100%;*/
}

styles

<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet" />
<link href="https://use.fontawesome.com/releases/v5.5.0/css/all.css" rel="stylesheet" />