Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Play songs #2

Open
wants to merge 3 commits into
base: master
Choose a base branch
from
Open

Play songs #2

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
b6381d7
Play songs
jsdir Jan 9, 2015
c79d634
Fixing pitch
jsdir Jan 9, 2015
e2f1980
Nyan cat
jsdir Jan 9, 2015
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
119 changes: 118 additions & 1 deletion screentunes.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,102 @@
var start = null;
var t = null;

var tones = {
REST: 0,
GbelowC: 196,
A: 220,
Asharp: 233,
B: 247,
C: 262,
Csharp: 277,
D: 294,
Dsharp: 311,
E: 330,
F: 349,
Fsharp: 370,
G: 392,
Gsharp: 415
};

var whole = 1000;

var durations = {
whole: whole,
half: whole / 2,
quarter: whole / 4,
eighth: whole / 8,
sixteenth: whole / 16
};

var songs = {
mary: [
[tones.E, durations.quarter],
[tones.D, durations.quarter],
[tones.C, durations.quarter],
[tones.D, durations.quarter],
[tones.E, durations.quarter],
[tones.E, durations.quarter],
[tones.E, durations.half],
[tones.D, durations.quarter],
[tones.D, durations.quarter],
[tones.D, durations.half],
[tones.E, durations.quarter],
[tones.G, durations.quarter],
[tones.G, durations.half],
[tones.E, durations.quarter],
[tones.D, durations.quarter],
[tones.C, durations.quarter],
[tones.D, durations.quarter],
[tones.E, durations.quarter],
[tones.E, durations.quarter],
[tones.E, durations.quarter],
[tones.E, durations.quarter],
[tones.D, durations.quarter],
[tones.D, durations.quarter],
[tones.E, durations.quarter],
[tones.D, durations.quarter],
[tones.C, durations.whole]
],
scale: [
[tones.A, durations.quarter],
[tones.B, durations.quarter],
[tones.C, durations.quarter],
[tones.D, durations.quarter],
[tones.E, durations.quarter],
[tones.F, durations.quarter],
[tones.G, durations.quarter]
],
nyan: [
// measure 1
[tones.Fsharp, durations.eighth],
[tones.Gsharp, durations.eighth],
[tones.D, durations.sixteenth],
[tones.Dsharp, durations.eighth],
[tones.Csharp, durations.sixteenth],
[tones.D, durations.sixteenth],
[tones.Csharp, durations.sixteenth],
[tones.B, durations.eighth],
[tones.B, durations.eighth],
[tones.Csharp, durations.eighth],
// measure 2
[tones.D, durations.eighth],
[tones.D, durations.sixteenth],
[tones.Csharp, durations.sixteenth],
[tones.B, durations.sixteenth],
[tones.Csharp, durations.sixteenth],
[tones.Dsharp, durations.sixteenth],
[tones.Fsharp, durations.sixteenth],
[tones.Gsharp, durations.sixteenth],
[tones.Dsharp, durations.sixteenth],
[tones.Fsharp, durations.sixteenth],
[tones.Csharp, durations.sixteenth],
[tones.Dsharp, durations.sixteenth],
[tones.B, durations.sixteenth],
[tones.Csharp, durations.sixteenth],
[tones.B, durations.sixteenth]
]
};

var AnimationFrame = (function() {
var FPS = 16.6666666667; // 1000 / 60 = Frames Per Second
var RAF = window.requestAnimationFrame
Expand Down Expand Up @@ -50,9 +146,30 @@
}
}

var incrTime = 0;
var noteCount = 0;
var song = songs.nyan;
var play = true;
function render() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
var magic = 5 + (Math.sin(t / 2000)+1)*7;

if (!play) {return;}

var lastNote = song[noteCount];
if (t/2 - incrTime > lastNote[1]) {
incrTime += lastNote[1];
noteCount++;
if (noteCount == song.length) {
play = false;
return;
}
}

var note = song[noteCount];
var magic = -note[0] * .105 + 60;

//var magic = 5 + (Math.sin(t / 2000)+1)*7;

bars(magic, magic);
}

Expand Down