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Diogenes Fernandes
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Nov 23, 2023
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| Original file line number | Diff line number | Diff line change |
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@@ -2,3 +2,7 @@ spacedrum | |
| ========= | ||
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| Spacedrum instrument playable in browser | ||
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| # Running the project | ||
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| python -m http.server 3000 | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,165 +1,175 @@ | ||
| AudioContext = window.AudioContext || window.webkitAudioContext; | ||
| SpaceDrum = { | ||
| audioContext: new AudioContext(), | ||
| sounds: {}, | ||
| log: [], | ||
| recording: false, | ||
| start_time: null, | ||
| load: function() { | ||
| this.notes = []; | ||
| var that = this; | ||
| $.each(that.parent.find('button'), function(key,value){ | ||
| that.notes.push( $(value).attr('id') ); | ||
| }); | ||
| this.loadSounds(this.audioContext); | ||
| this.parent.find('button').mouseenter(function(){ | ||
| that.playNote($(this).attr('id')); | ||
| }); | ||
| $('#record').click(function(){ | ||
| (function () { | ||
| if (that.recording == true) { | ||
| that.recording = false; | ||
| var log = JSON.stringify(that.log); | ||
| $('.circle').removeClass('recording'); | ||
| $('#log').val(log); | ||
| } | ||
| else { | ||
| that.log = []; | ||
| that.recording = true; | ||
| $('.circle').addClass('recording'); | ||
| that.start_time = Date.now(); | ||
| } | ||
| }).call(); | ||
| }); | ||
| $('#play').click(function(){ | ||
| var log = $('#log').val(); | ||
| var obj = new Function('return '+log)(); | ||
| for (note in obj) { | ||
| let context; | ||
| function main() { | ||
| AudioContext = window.AudioContext || window.webkitAudioContext; | ||
| context = new AudioContext(); | ||
| SpaceDrum = { | ||
| audioContext: context, | ||
| sounds: {}, | ||
| log: [], | ||
| recording: false, | ||
| start_time: null, | ||
| load: function() { | ||
| this.notes = []; | ||
| var that = this; | ||
| $.each(that.parent.find('button'), function(key,value){ | ||
| that.notes.push( $(value).attr('id') ); | ||
| }); | ||
| this.loadSounds(this.audioContext); | ||
| this.parent.find('button').mouseenter(function(){ | ||
| that.playNote($(this).attr('id')); | ||
| }); | ||
| $('#record').click(function(){ | ||
| (function () { | ||
| var sound = obj[note]; | ||
| setTimeout(function(){ | ||
| that.playNote(sound[0]); | ||
| }, sound[1]); | ||
| })(); | ||
| }; | ||
| }) | ||
| document.onkeydown = function(e) { | ||
| kc = e.keyCode; | ||
| if(kc in that.keyBindings) { | ||
| that.playNote( that.keyBindings[kc] ); | ||
| if (that.recording == true) { | ||
| that.recording = false; | ||
| var log = JSON.stringify(that.log); | ||
| $('.circle').removeClass('recording'); | ||
| $('#log').val(log); | ||
| } | ||
| else { | ||
| that.log = []; | ||
| that.recording = true; | ||
| $('.circle').addClass('recording'); | ||
| that.start_time = Date.now(); | ||
| } | ||
| }).call(); | ||
| }); | ||
| $('#play').click(function(){ | ||
| var log = $('#log').val(); | ||
| var obj = new Function('return '+log)(); | ||
| for (note in obj) { | ||
| (function () { | ||
| var sound = obj[note]; | ||
| setTimeout(function(){ | ||
| that.playNote(sound[0]); | ||
| }, sound[1]); | ||
| })(); | ||
| }; | ||
| }) | ||
| document.onkeydown = function(e) { | ||
| kc = e.keyCode; | ||
| if(kc in that.keyBindings) { | ||
| that.playNote( that.keyBindings[kc] ); | ||
| } | ||
| } | ||
| }, | ||
| loadSound: function (audioContext, key, url) { | ||
| var request = new XMLHttpRequest(); | ||
| request.open("get", url); | ||
| request.responseType = "arraybuffer"; | ||
| request.onload = (function () { | ||
| this.audioContext.decodeAudioData(request.response, (function (buffer) { | ||
| this.sounds[key] = buffer; | ||
| }).bind(this)); | ||
| }).bind(this); | ||
| request.send(); | ||
| }, | ||
| loadSounds: function (audioContext) { | ||
| var that = this; | ||
| for (var key in this.notes) { | ||
| var note = this.notes[key]; | ||
| this.loadSound(audioContext, | ||
| note, | ||
| that.path+note+'.mp3' | ||
| ); | ||
| } | ||
| }, | ||
| playNote: function(sound) { | ||
| var element = $('#'+sound); | ||
| element.css('opacity', '0.5'); | ||
| if (this.recording) { | ||
| this.log.push([sound, Math.abs(Date.now()-this.start_time)]); | ||
| } | ||
| element.animate({opacity: 0}, 'fast'); | ||
| this.playSound(sound); | ||
|
|
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| }, | ||
| playSound: function(sound) { | ||
| var source = this.audioContext.createBufferSource(); | ||
| source.buffer = this.sounds[sound]; | ||
| source.connect(this.audioContext.destination); | ||
| source.start(0); | ||
| } | ||
| }, | ||
| loadSound: function (audioContext, key, url) { | ||
| var request = new XMLHttpRequest(); | ||
| request.open("get", url); | ||
| request.responseType = "arraybuffer"; | ||
| request.onload = (function () { | ||
| this.audioContext.decodeAudioData(request.response, (function (buffer) { | ||
| this.sounds[key] = buffer; | ||
| }).bind(this)); | ||
| }).bind(this); | ||
| request.send(); | ||
| }, | ||
| loadSounds: function (audioContext) { | ||
| var that = this; | ||
| for (var key in this.notes) { | ||
| var note = this.notes[key]; | ||
| this.loadSound(audioContext, | ||
| note, | ||
| that.path+note+'.mp3' | ||
| ); | ||
| } | ||
| }, | ||
| playNote: function(sound) { | ||
| var element = $('#'+sound); | ||
| element.css('opacity', '0.5'); | ||
| if (this.recording) { | ||
| this.log.push([sound, Math.abs(Date.now()-this.start_time)]); | ||
| } | ||
| element.animate({opacity: 0}, 'fast'); | ||
| this.playSound(sound); | ||
|
|
||
| }, | ||
| playSound: function(sound) { | ||
| var source = this.audioContext.createBufferSource(); | ||
| source.buffer = this.sounds[sound]; | ||
| source.connect(this.audioContext.destination); | ||
| source.start(0); | ||
| } | ||
| }; | ||
| }; | ||
|
|
||
| var SpaceDrum6 = $.extend({ | ||
| keyBindings: { | ||
| '90': 'C4V4', | ||
| '65': 'F4V4', | ||
| '68': 'G4V4', | ||
| '88': 'D4V4', | ||
| '87': 'Bb4V4', | ||
| '83': 'Bb3V4', | ||
| }, | ||
| parent: $('.spacedrum6'), | ||
| path: 'sounds/6notes', | ||
| keyboard: 'images/keyboard6.png', | ||
| background: 'images/sunset.jpg' | ||
| }, SpaceDrum); | ||
| var SpaceDrum8 = $.extend({ | ||
| keyBindings: { | ||
| '51': 'V4A4', | ||
| '87': 'V4F4', | ||
| '69': 'V4G4', | ||
| '68': 'V4E4', | ||
| '88': 'V4C4', | ||
| '90': 'V4B3', | ||
| '65': 'V4D4', | ||
| '83': 'V4A3', | ||
| }, | ||
| parent: $('.spacedrum8'), | ||
| path: 'sounds/8notesDiatoAm', | ||
| keyboard: 'images/keyboard8.png', | ||
| background: 'images/magnaen.jpg' | ||
| }, SpaceDrum); | ||
| var SpaceDrum13 = $.extend({ | ||
| keyBindings: { | ||
| "67":'o1C4', | ||
| "52":'o2Cd4', | ||
| "88":'o3D4', | ||
| "87":'o4Eb4', | ||
| "70":'o5E4', | ||
| "90":'o6F4', | ||
| "51":'o7Fd4', | ||
| "84":'o8G4', | ||
| "65":'omaGd4', | ||
| "68":'o10A4', | ||
| "69":'o11Bb4', | ||
| "82":'o12B4', | ||
| "83":'o13C5', | ||
| }, | ||
| parent: $('.spacedrum13'), | ||
| path: 'sounds/Chr', | ||
| keyboard: 'images/keyboard13.png', | ||
| background: 'images/hands.jpg' | ||
| }, SpaceDrum); | ||
| var SpaceDrum6 = $.extend({ | ||
| keyBindings: { | ||
| '90': 'C4V4', | ||
| '65': 'F4V4', | ||
| '68': 'G4V4', | ||
| '88': 'D4V4', | ||
| '87': 'Bb4V4', | ||
| '83': 'Bb3V4', | ||
| }, | ||
| parent: $('.spacedrum6'), | ||
| path: 'sounds/6notes', | ||
| keyboard: 'images/keyboard6.png', | ||
| background: 'images/sunset.jpg' | ||
| }, SpaceDrum); | ||
| var SpaceDrum8 = $.extend({ | ||
| keyBindings: { | ||
| '51': 'V4A4', | ||
| '87': 'V4F4', | ||
| '69': 'V4G4', | ||
| '68': 'V4E4', | ||
| '88': 'V4C4', | ||
| '90': 'V4B3', | ||
| '65': 'V4D4', | ||
| '83': 'V4A3', | ||
| }, | ||
| parent: $('.spacedrum8'), | ||
| path: 'sounds/8notesDiatoAm', | ||
| keyboard: 'images/keyboard8.png', | ||
| background: 'images/magnaen.jpg' | ||
| }, SpaceDrum); | ||
| var SpaceDrum13 = $.extend({ | ||
| keyBindings: { | ||
| "67":'o1C4', | ||
| "52":'o2Cd4', | ||
| "88":'o3D4', | ||
| "87":'o4Eb4', | ||
| "70":'o5E4', | ||
| "90":'o6F4', | ||
| "51":'o7Fd4', | ||
| "84":'o8G4', | ||
| "65":'omaGd4', | ||
| "68":'o10A4', | ||
| "69":'o11Bb4', | ||
| "82":'o12B4', | ||
| "83":'o13C5', | ||
| }, | ||
| parent: $('.spacedrum13'), | ||
| path: 'sounds/Chr', | ||
| keyboard: 'images/keyboard13.png', | ||
| background: 'images/hands.jpg' | ||
| }, SpaceDrum); | ||
|
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| SpaceDrum6.load(); | ||
| SpaceDrum6.load(); | ||
|
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| $('.list').click(function(){ | ||
| var name = $(this).attr('id'); | ||
| obj = window[name]; | ||
| drums = { | ||
| "SpaceDrum6": SpaceDrum6, | ||
| "SpaceDrum8": SpaceDrum8, | ||
| "SpaceDrum13": SpaceDrum13, | ||
| } | ||
|
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| $('.list').click(function(){ | ||
| var name = $(this).attr('id'); | ||
| obj = drums[name]; | ||
|
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| obj.load(); | ||
| $('body').animate({opacity: 0}, 'slow', function() { | ||
| $('img.keyboard').attr('src', obj.keyboard); | ||
| $('.spacedrum').hide(); | ||
| $(this). | ||
| css({'background-image': 'url('+obj.background+')'}). | ||
| animate({opacity: 1}); | ||
| $('.'+name.toLowerCase()).show(); | ||
| }); | ||
| }); | ||
| } | ||
|
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| obj.load(); | ||
| $('body').animate({opacity: 0}, 'slow', function() { | ||
| $('img.keyboard').attr('src', obj.keyboard); | ||
| $('.spacedrum').hide(); | ||
| $(this). | ||
| css({'background-image': 'url('+obj.background+')'}). | ||
| animate({opacity: 1}); | ||
| $('.'+name.toLowerCase()).show(); | ||
| }); | ||
| }); | ||
| main(); | ||
|
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| // $.each($('button'), function(){ | ||
| // var $this = $(this); | ||
| // console.log($this); | ||
| // $this.text( $this.attr('id') ); | ||
| // }) | ||
| addEventListener("touchstart", (event) => { | ||
| context.resume(); | ||
| }); |
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