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build.js
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//→ wavepot.js:
var ask = (title, text, defaultValue) => {
return new Promise(resolve => {
const div = document.createElement('div');
div.className = 'prompt';
div.innerHTML = `
<div class="inner">
<div class="title">${title}</div>
<div class="text">${text}</div>
<input type="text" value="${defaultValue}">
<div class="buttons">
<button class="cancel">Cancel</button> <button class="ok">OK</button>
</div>
</div>
`;
const keyListener = e => {
e.stopPropagation();
if (e.which === 13) ok();
if (e.which === 27) cancel();
};
const prevent = e => {
e.stopPropagation();
};
const preventEvents = [
'keyup',
'input',
'keypress',
'mousedown',
'mouseup',
'mousemove',
'mousewheel'
];
const cleanup = () => {
window.removeEventListener('keydown', keyListener, { capture: true });
preventEvents.forEach(event => {
window.removeEventListener(event, prevent, { capture: true });
});
document.body.removeChild(div);
};
const ok = () => {
cleanup();
resolve({ value: div.querySelector('input').value });
};
const cancel = () => {
cleanup();
resolve(false);
};
div.querySelector('.ok').onclick = ok;
div.querySelector('.cancel').onclick = cancel;
window.addEventListener('keydown', keyListener, { capture: true });
preventEvents.forEach(event => {
window.addEventListener(event, prevent, { capture: true });
});
document.body.appendChild(div);
div.querySelector('input').focus();
div.querySelector('input').select();
})
};
const isMac = /Mac|iPod|iPhone|iPad/.test(navigator.platform);
const pixelRatio$1 = window.devicePixelRatio;
let selectionText = '';
let textarea;
const editors = {};
class Editor {
constructor (data) {
this.data = data;
this.isVisible = true;
this.hasSetup = false;
this.toAdd = [];
this.id = data.id ?? (Math.random() * 10e6 | 0).toString(36);
editors[this.id] = this;
this._onchange(data);
this.focusedEditor = this;
this.canvas = document.createElement('canvas');
this.canvas.className = 'editor';
this.canvas.width = data.width * pixelRatio$1;
this.canvas.height = data.height * pixelRatio$1;
this.canvas.style.width = data.width + 'px';
this.canvas.style.height = data.height + 'px';
if (!this.pseudoWorker) {
const workerUrl = new URL('editor-worker.js', import.meta.url).href;
this.worker = new Worker(workerUrl, { type: 'module' });
this.worker.onerror = error => this._onerror(error);
this.worker.onmessage = ({ data }) => this['_' + data.call](data);
} else {
this.setupPseudoWorker();
}
}
async setupPseudoWorker () {
const PseudoWorker = await import(new URL('editor-worker.js', import.meta.url));
this.worker = new PseudoWorker();
this.worker.onerror = error => this._onerror(error);
this.worker.onmessage = ({ data }) => this['_' + data.call](data);
}
setColor (color) {
this.worker.postMessage({ call: 'setColor', color });
}
setEditorById (id) {
this.worker.postMessage({ call: 'setEditorById', id });
}
destroy () {
delete editors[this.id];
this.worker.terminate();
this.canvas.parentNode.removeChild(this.canvas);
this.ondestroy?.();
}
_onblockcomment () {
this.onblockcomment?.();
}
_onerror (error) {
console.error(error);
}
_onready () {
const outerCanvas = this.pseudoWorker ? this.canvas : this.canvas.transferControlToOffscreen();
this.worker.postMessage({
call: 'setup',
id: this.id,
title: this.title,
extraTitle: this.extraTitle,
value: this.value,
font: this.font,
fontSize: this.fontSize,
autoResize: this.autoResize,
padding: this.padding,
titlebarHeight: this.titlebarHeight,
outerCanvas,
pixelRatio: pixelRatio$1,
}, [outerCanvas]);
this.onready?.();
// this.stream = this.canvas.captureStream(15)
// this.videoTrack = this.stream.getVideoTracks()[0]
// this.videoTrack.requestFrame()
}
_onsetup () {
this.hasSetup = true;
if (this.toAdd.length) {
this.toAdd.forEach(data => this.addSubEditor(data));
this.toAdd = [];
}
this.onsetup?.();
}
focus () {
this.handleEvent('mouse', 'click');
this._onfocus();
}
update (fn) {
this.onupdate = fn;
this.worker.postMessage({ call: 'update' });
}
_onupdate (data) {
Object.assign(this, data);
Object.assign(this.data, data);
this.onupdate?.(data);
}
async _onchange (data) {
Object.assign(this, data);
Object.assign(this.data, data);
// if (this.cache) {
// this.filename = await this.cache.put(this.title, this.value)
// console.log('put in cache:', this.filename)
// }
this.onchange?.(data);
}
_ondraw () {
// this.videoTrack.requestFrame()
}
_onrename (data) {
this.focusedEditor = data;
this.onrename?.(data);
}
_onadd (data) {
this.onadd?.(data);
}
_onremove (data) {
this.onremove?.(data);
}
// _onhistory (history) {
// this.history = history
// }
_onfocus (editor) {
this.focusedEditor = editor;
this.onfocus?.(editor);
}
_onselection ({ text }) {
if (textarea) {
if (text.length) {
textarea.select();
} else {
textarea.selectionStart = -1;
textarea.selectionEnd = -1;
}
}
selectionText = text;
}
_onresize () {
this.resize(); // TODO: is this necessary?
this.onresize?.();
}
resize ({ width, height } = {}) {
this.parent = this.parent ?? this.canvas.parentNode;
let rect = this.canvas.getBoundingClientRect();
rect.y += window.pageYOffset;
rect.x += window.pageXOffset;
this.rect = rect;
if ((width || height) && (rect.width !== width || rect.height !== height)) {
this.worker
.postMessage({
call: 'onresize',
width: width*pixelRatio$1,
height: height*pixelRatio$1
});
this.canvas.style.width = width + 'px';
this.canvas.style.height = height + 'px';
rect = this.canvas.getBoundingClientRect();
rect.y += window.pageYOffset;
rect.x += window.pageXOffset;
this.rect = rect;
}
}
addSubEditor (data) {
if (this.hasSetup) {
this.worker
.postMessage({
...this.data,
...data,
call: 'addSubEditor',
});
} else {
this.toAdd.push(data);
}
}
_onimagebitmap ({ imageBitmap }) {
this.imageBitmap = imageBitmap;
}
handleEvent (type, eventName, e = {}) {
const data = eventHandlers[type](e, eventName, this);
if (!data) return false
// if (ignore) return false
if (!(data.cmdKey && data.key === 'x')) {
e.preventDefault?.();
e.stopPropagation?.();
}
if (eventName === 'onkeydown') {
// remove editor
if (data.cmdKey && data.key === 'b') {
const { title } = this.focusedEditor;
if (confirm('Are you sure you want to delete ' + title + '?')) {
this.worker.postMessage({
call: 'deleteEditor',
id: this.focusedEditor.id
});
}
}
// add editor
if (data.cmdKey && data.key === 'u') {
e.preventDefault();
this.ontoadd?.(); // ontoadd because onadd is fired from when editor is added
return false
}
// rename editor
if (data.cmdKey && data.key === 'm') {
// TODO: completely hacky way to remove the textarea while
// there is title change
methods.events.setTarget('hover', null, new MouseEvent('mouseout'));
e.preventDefault();
ask('Change name', `Type a new name for "${this.focusedEditor.title}"`,
this.focusedEditor.title).then(async (result) => {
if (!result) return
// if (this.id === this.focusedEditor.id) {
// const oldTitle = this.title
// this.title = result.value
// // this.onrename?.(oldTitle, this.title)
// }
this.worker
.postMessage({
call: 'renameEditor',
id: this.focusedEditor.id,
title: result.value
});
});
return false
}
}
this.worker.postMessage({ call: eventName, ...data });
}
}
const methods = {};
const registerEvents = (parent) => {
textarea = document.createElement('textarea');
textarea.style.position = 'fixed';
textarea.style.zIndex = 100;
// textarea.style.left = (e.clientX ?? e.pageX) + 'px'
// textarea.style.top = (e.clientY ?? e.pageY) + 'px'
textarea.style.width = '100px';
textarea.style.height = '100px';
textarea.style.marginLeft = '-50px';
textarea.style.marginTop = '-50px';
textarea.style.opacity = 0;
textarea.style.visibility = 'none';
textarea.style.resize = 'none';
textarea.style.cursor = 'default';
textarea.autocapitalize = 'none';
textarea.autocomplete = 'off';
textarea.spellchecking = 'off';
textarea.value = 0;
// const createUndoRedo = methods.createUndoRedo = () => {
// // create undo/redo capability
// ignore = true
// textarea.focus()
// textarea.select()
// document.execCommand('insertText', false, 1)
// textarea.select()
// document.execCommand('insertText', false, 2)
// document.execCommand('undo', false)
// textarea.selectionStart = -1
// textarea.selectionEnd = -1
// ignore = false
// }
// const removeUndoRedo = methods.removeUndoRedo = () => {
// // remove undo/redo capability
// ignore = true
// textarea.focus()
// textarea.select()
// document.execCommand('undo', false)
// // document.execCommand('undo', false)
// // document.execCommand('undo', false)
// textarea.selectionStart = -1
// textarea.selectionEnd = -1
// // ignore = false
// }
textarea.oncut = e => {
e.preventDefault();
e.clipboardData.setData('text/plain', selectionText);
selectionText = '';
events.targets?.focus?.worker.postMessage({ call: 'onkeydown', cmdKey: true, key: 'x' });
textarea.selectionStart = -1;
textarea.selectionEnd = -1;
};
textarea.oncopy = e => {
e.preventDefault();
e.clipboardData.setData('text/plain', selectionText);
};
textarea.onpaste = e => {
e.preventDefault();
const text = e.clipboardData.getData('text/plain');
events.targets?.focus?.worker.postMessage({ call: 'onpaste', text });
};
// textarea.oninput = e => {
// if (ignore) return
// ignore = true
// const editor = events.targets.focus
// const needle = +textarea.value
// if (needle === 0) { // is undo
// document.execCommand('redo', false)
// if (editor?.history) {
// if (editor.history.needle > 1) {
// editor.history.needle--
// editor.worker.postMessage({
// call: 'onhistory',
// needle: editor.history.needle
// })
// }
// }
// } else if (needle === 2) { // is redo
// document.execCommand('undo', false)
// if (editor?.history) {
// if (editor.history.needle < editor.history.log.length) {
// editor.history.needle++
// editor.worker.postMessage({
// call: 'onhistory',
// needle: editor.history.needle
// })
// }
// }
// }
// ignore = false
// // if (needle !== history.needle) {
// // if (needle >= 1) {
// // history.needle = needle
// // textarea.selectionStart = -1
// // textarea.selectionEnd = -1
// // events.targets?.focus?.postMessage({ call: 'onhistory', needle })
// // // app.storeHistory(editor, history)
// // } else {
// // document.execCommand('redo', false)
// // }
// // }
// // document.execCommand('redo', false)
// textarea.selectionStart = -1
// textarea.selectionEnd = -1
// }
const targetHandler = (e, type) => {
// if (ignore) return
let _target = emptyTarget;
for (const target of Object.values(editors)) {
if (events.isWithin(e, target)) {
_target = target;
break
}
}
events.setTarget(type, _target, e);
};
const rect = parent.getBoundingClientRect();
const emptyTarget = {
rect,
parent,
handleEvent () {}
};
const events = methods.events = {
ignore: false,
textarea,
targets: {},
setTarget (type, target, e) {
const previous = this.targets[type];
let noBlur = false;
// enable overlayed items to handle their own events
// so as far as we are concerned, the target is null
if (target
&& e.target !== textarea
&& e.target !== target.canvas
&& e.target !== target.parent
&& (target !== emptyTarget && events.targets.hover !== emptyTarget)
) {
target = null;
type = 'hover';
noBlur = true;
}
this.targets[type] = target;
if (previous !== target) {
const focus = type === 'focus';
if (previous && !noBlur) {
previous.handleEvent(
focus ? 'window' : 'mouse',
focus ? 'onblur' : 'onmouseout',
e
);
}
if (target) {
target.handleEvent(
focus ? 'window' : 'mouse',
focus ? 'onfocus' : 'onmouseenter',
e
);
target.handleEvent('mouse', 'on' + e.type, e);
}
}
},
isWithin (e, { isVisible, rect, parent }) {
if (!isVisible) return
let { left, top, right, bottom } = rect;
left -= parent.scrollLeft; //+ window.pageXOffset
right -= parent.scrollLeft; //+ window.pageXOffset
top -= parent.scrollTop; //+ window.pageYOffset
bottom -= parent.scrollTop; //+ window.pageYOffset
if ((e.pageX ?? e.clientX) >= left && (e.pageX ?? e.clientX) <= right
&& (e.pageY ?? e.clientY) >= top && (e.pageY ?? e.clientY) <= bottom) {
return true
}
},
destroy () {
const handlers = [
...mouseEventHandlers,
...keyEventHandlers,
...windowEventHandlers
];
for (const [target, eventName, fn] of handlers.values()) {
target.removeEventListener(eventName, fn);
}
window.removeEventListener('mousedown', focusTargetHandler, { capture: true, passive: false });
window.removeEventListener('mousewheel', hoverTargetHandler, { capture: true, passive: false });
window.removeEventListener('mousemove', hoverTargetHandler, { capture: true, passive: false });
document.body.removeChild(textarea);
textarea.oncut =
textarea.oncopy =
textarea.onpaste =
textarea.oninput = null;
textarea = null;
}
};
const handlerMapper = (target, type) => eventName => {
const handler = e => {
let targets = events.targets;
if (!targets.forceWithin) {
if (eventName === 'onmousedown') {
targetHandler(e, 'focus');
} else if (eventName === 'onmousewheel' || eventName === 'onmousemove') {
targetHandler(e, 'hover');
}
}
if (type === 'mouse') {
if (eventName === 'onmouseup') {
targets.forceWithin = null;
}
if (eventName === 'onmousedown' && !targets.forceWithin) {
targets.forceWithin = targets.hover;
}
if (targets.forceWithin) {
return targets.forceWithin.handleEvent?.(type, eventName, e)
}
if (targets.hover && events.isWithin(e, targets.hover)) {
return targets.hover.handleEvent?.(type, eventName, e)
}
} else if (targets.focus) {
return targets.focus.handleEvent?.(type, eventName, e)
}
if (type === 'window') {
if (eventName === 'onfocus') {
return targets.focus?.handleEvent?.(type, eventName, e)
} else {
for (const editor of Object.values(editors)) {
editor.handleEvent?.(type, eventName, e);
}
}
}
};
target.addEventListener(
eventName.slice(2),
handler,
{ passive: false }
);
return [target, eventName.slice(2), handler]
};
const mouseEventHandlers = [
'onmousewheel',
'onmousedown',
'onmouseup',
'onmouseover',
'onmousemove',
].map(handlerMapper(parent, 'mouse'));
const keyEventHandlers = [
'onkeydown',
'onkeyup',
].map(handlerMapper(parent, 'key'));
const windowEventHandlers = [
'onblur',
'onfocus',
'onresize',
'oncontextmenu',
].map(handlerMapper(window, 'window'));
return events
};
const eventHandlers = {
window (e, eventName, editor) {
if (eventName === 'oncontextmenu') {
return
}
if (eventName === 'onresize') {
return
// return {
// width: editor.width * pixelRatio,
// height: editor.height * pixelRatio
// }
}
return {/* todo */}
},
mouse (e, eventName, editor) {
if (textarea) {
if (eventName === 'onmouseenter') {
document.body.appendChild(textarea);
// methods.createUndoRedo()
textarea.style.pointerEvents = 'all';
textarea.focus();
} else if (eventName === 'onmouseout') {
textarea.style.pointerEvents = 'none';
// methods.removeUndoRedo()
document.body.removeChild(textarea);
textarea.blur();
}
}
const rect = editor.rect;
const clientX = e.pageX;
const clientY = e.pageY;
const deltaX = (e.deltaX || 0) / 1000;
const deltaY = (e.deltaY || 0) / 1000;
if (textarea) {
textarea.style.left = e.clientX + 'px';
textarea.style.top = e.clientY + 'px';
}
return {
clientX: clientX - rect.x,
clientY: clientY - rect.y,
deltaX,
deltaY,
left: e.which === 1,
middle: e.which === 2,
right: e.which === 3
}
},
key (e, eventName) {
const {
key,
which,
altKey,
shiftKey,
ctrlKey,
metaKey
} = e;
const cmdKey = isMac ? metaKey : ctrlKey;
if (cmdKey && key === 'r') return false
if (cmdKey && key === '+') return false
if (cmdKey && key === '-') return false
// if (cmdKey && key === 'z') return false
// if (cmdKey && key === 'y') return false
if (cmdKey && key === 'c') return false
if (cmdKey && key === 'x') return false
if (cmdKey && (key === 'v' || key === 'V')) return false
if (cmdKey && shiftKey && key === 'J') return false
return {
key,
which,
char: String.fromCharCode(which),
altKey,
shiftKey,
ctrlKey,
metaKey,
cmdKey
}
}
};
class Shared32Array {
constructor (length) {
return new Float32Array(
new SharedArrayBuffer(
length * Float32Array.BYTES_PER_ELEMENT)
)
}
}
class Rpc {
callbackId = 0
callbacks = new Map
constructor () {}
postCall (method, data, tx) {
this.port.postMessage({ call: method, ...data }, tx);
}
rpc (method, data, tx) {
return new Promise((resolve, reject) => {
const id = this.callbackId++;
this.callbacks.set(id, data => {
this.callbacks.delete(id);
if (data.error) reject(data.error);
else resolve(data);
});
this.postCall(method, { data, callback: id }, tx);
})
}
callback (data) {
this.callbacks.get(data.responseCallback)(data.data ?? data);
}
register (port) {
this.port = port;
this.port.addEventListener('message', async ({ data }) => {
// console.log(data)
if (!(data.call in this)) {
throw new ReferenceError(data.call + ' is not a method')
}
let result;
try {
if (data.call === 'callback') {
result = await this[data.call](data);
} else {
result = await this[data.call](data.data ?? data);
}
} catch (error) {
result = { error };
}
if ('callback' in data) {
this.postCall('callback', { data: result, responseCallback: data.callback });
}
});
this.port.addEventListener('error', error => {
console.error(error);
this.postCall('onerror', { error });
});
this.port.addEventListener('messageerror', error => {
console.error(error);
this.postCall('onmessageerror', { error });
});
return this
}
}
const API_URL = !location.port ? location.origin : 'http://localhost:3000';
const mode = 'cors';
const headers = {
'Accept': 'application/json',
'Content-Type': 'application/json'
};
const load = async (title) => {
const url = title[0] === '.' ? title : API_URL + '/' + title;
const res = await fetch(url, { mode, headers });
const json = await res.json();
return json
};
const save = async (projectJson) => {
const url = API_URL + '/p'; // + projectJson.title
const res = await fetch(url, {
method: 'POST',
mode,
headers,
body: JSON.stringify(projectJson, null, 2)
});
const json = await res.json();
return json
};
let samples = new Map;
const fetchSample = async (audio, remoteUrl) => {
const url = getFetchUrl(remoteUrl);
let sample = samples.get(remoteUrl);
if (!sample) {
const res = await fetch(url);
const arrayBuffer = await res.arrayBuffer();
const audioBuffer = await audio.decodeAudioData(arrayBuffer);
const floats = Array(audioBuffer.numberOfChannels).fill(0)
.map((_, i) => audioBuffer.getChannelData(i));
sample = floats.map(buf => {
const shared = new Shared32Array(buf.length);
shared.set(buf);
return shared
});
samples.set(remoteUrl, sample);
}
return sample
};
const getFetchUrl = (remoteUrl) => {
const url = API_URL + '/fetch?url=' + encodeURIComponent(remoteUrl);
return url
};
var initial = `{"id":"4moxr","value":"bpm(120)\n\ncolor('#f10')\n\nyt(['FJ3N_2r6R-o','guVAeFs5XwE','oHg5SJYRHA0'].seq(2))\n [['pixelmess','noop'].seq(1)](2)\n .wobble(1)\n .mirror([2.5,5,.5,1,3].seq(1/4))\n .glitch()\n .out()\n\nmod(1/4).sin(mod(1/4).val(42.881).exp(.057))\n .exp(8.82).tanh(15.18)\n .on(8,1).val(0)\n .out(.4)\n\npulse(\n val(50)\n .on(8,1/8).val(70)\n .on(8,1/2,16).mul(1.5)\n .on(16,1/2).mul(2)\n .on(4,16).mul(1.5)\n).mod(1/16).exp(10)\n .vol('.1 .1 .5 1'.seq(1/16))\n .lp(700,1.2)\n .on(4,8).delay(1/(512+200*mod(1).sin(1)),.8)\n .on(1,8,16).vol(0)\n .widen(.4)\n .out(.35)\n\nmod(1/16).noise(333).exp(30)\n .vol('.1 .4 1 .4'.seq(1/16))\n .on(8,1/4).mul('1.5 13'.seq(1/32))\n .hs(16000)\n .bp(500+mod(1/4).val(8000).exp(2.85),.5,.5)\n .on(8,2).vol(0)\n .widen(.7)\n .out(.2)\n\nmod(1/2).play('freesound:220752'.sample,-19025,1)\n .vol('- - 1 -'.slide(1/8,.5))\n .vol('- - 1 .3'.seq(1/8))\n .tanh(2)\n .widen(.04)\n .out(.3)\n\nmod(4).play('freesound:243601'.sample,46000,.95)\n .vol('- - - - - - 1 1 .8 - - - - - - -'.seq(1/16))\n .on(16,1).val(0)\n .delay(1/[100,200].seq(4))\n .daverb(.2,5352)\n .out(.23)\n\non(1,1,8).grp()\n .noise()\n .bp(6000)\n .bp(14000)\n .out(.08)\n.end()\n\nmain\n .on(8,2)\n .grp()\n .bp(3000+mod(16,.06).cos(sync(16))*2800,4)\n .pan(sin(sync(8)))\n .end()\n .tanh(1.5)\n .plot()","title":"Techno. Chrome. Dance. This."}
/* -^-^-^-^- */
{"id":"34cqq","value":"bpm(100)\n\ncolor('#46f')\n\nmod(val(1/4).on(8,1).val(1/8).on(16,1/2).val(1/16))\n .sin(mod(1/4).val(42.881).exp(.057))\n .exp(8.82).tanh(15.18)\n .on(16,1).val(0)\n .out(.4)\n\nsaw('d d# f f#'.seq(1/4).note/4)\n .mod(1/16).exp(10)\n .vol('.5 .1 .5 1'.seq(1/4))\n .lp(1800,1.2)\n .delay(1/[200,150].seq(4))\n .on(1,8,16).vol(0)\n .out(.35)\n\nmod(1/16).noise(70).exp(19)\n .vol('.1 .4 1 .4'.seq(1/16))\n .on(8,1/4).mul('2 1'.seq(1/15))\n .bp(2500+mod(1/8).val(2000).exp(2.85),1.2,.5)\n .on(8,2).vol(0)\n .out(.2)\n\nmod(1/2).play('freesound:220752'.sample,-19025,1)\n .vol('- - 1 -'.slide(1/8,.5))\n .vol('- - 1 .3'.seq(1/8))\n .tanh(2)\n .out(.7)\n\nmod(4).play('freesound:243601'.sample,26000,1.1)\n .vol('- - - - - - 1 1 .8 - - - - - - -'.seq(1/16))\n .on(16,1).val(0)\n .delay(1/[100,200].seq(4))\n .daverb(.3,242411)\n .out(.4)\n\non(1,1,8).grp()\n .noise()\n .bp(6000)\n .bp(14000)\n .out(.08)\n.end()\n\nmain.tanh(1)\n .on(8,2).grp()\n .bp(3000+mod(16,.06).cos(sync(16))*2800,4)\n .vol('.7 1.2 1.4 1.9 1.9 2.1 2.2 2.3'.seq(1/4))\n .end().plot()","title":"Techno. Yo."}
/* -^-^-^-^- */
{"id":"4qfhk","value":"bpm(133)\n\ncolor('#2f0')\n\nyt(['PcI8Kq9y6cA'].seq(1))\n .mirror([.5,1,1.6,2.1,1.2,2.5].seq(1/4))\n .glitch()\n .out()\n\nmod(1/4,.5).sin(50+mod(1/4).val(70).exp(14))\n .soft(1)\n .exp(15)\n .soft(2.5)\n .tanh(1.5)\n .daverb(.5,14552)\n .out(val(1).on(8,16).val(0)).plot(10)\n\nmod(1/16).play('freesound:183105'.sample,0,1.6,bar)\n .vol('.1 .4 1 .4 .1 .3 1 .7'.seq(1/16))\n .daverb(.07,1222)\n .widen(.78)\n .out(.18)\n\nmod(1/8,.5).tri('f f f5 f6'.slide(1/16,4).note/20)\n .soft(8)\n .exp(10)\n .soft(18)\n .lp(1300,.32)\n .lp(1000+sin(sync(64))*400,1.5)\n .on(8,16).bp(600+sin(sync(128))*300,1)\n .daverb(.27,1225)\n .widen(.04)\n .out(.8)\n\nmod(1/16).play('freesound:117085'.sample,0,\n val(val(1).on(9,16,16).val(3).on(10,16,16).val(4))\n .on(16,1/2).val(2).on(38,1/8).val(4))\n .daverb(.25,1666)\n .out(.27)","title":"Find Me"}`.replaceAll('\n/* -^-^-^-^- */\n', '!!!').replaceAll('\n', '\\n').replaceAll('!!!','\n/* -^-^-^-^- */\n');
const getContext = (canvas, { alpha = true, antialias = false } = {}) => {
const gl = canvas.getContext('webgl2', { alpha, antialias });
gl.getExtension('EXT_color_buffer_float');
return gl
};
const createShader = (gl, { type, src }) => {
const shader = gl.createShader(type);
gl.shaderSource(shader, src.trim());
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS))
throw new Error(gl.getShaderInfoLog(shader))
return shader
};
const compileProgram = (gl, {
vertex,
fragment,
buffers = [],
attrs = {},
uniforms = {},
cleanup = true
}) => {
const program = gl.createProgram();
if (typeof vertex === 'string') {
vertex = createShader(gl, { type: gl.VERTEX_SHADER, src: vertex });
}
if (typeof fragment === 'string') {
fragment = createShader(gl, { type: gl.FRAGMENT_SHADER, src: fragment });
}
gl.attachShader(program, vertex);
gl.attachShader(program, fragment);
buffers.forEach(([buffer, _attrs]) => {
Object.entries(_attrs).forEach(([key, value]) => {
value.buffer = buffer;
attrs[key] = value;
});
});
const vao = createVertexArray(gl, program, attrs);
gl.linkProgram(program);
setUniforms(gl, program, uniforms);
gl.useProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS))
throw new Error(gl.getProgramInfoLog(program))
if (cleanup) {
gl.deleteShader(vertex);
gl.deleteShader(fragment);
}
program.vao = vao;
return program
};
const putBuffer = (gl, {
type = gl.ARRAY_BUFFER,
buffer = gl.createBuffer(),
data,
usage = gl.STATIC_DRAW
}) => {
gl.bindBuffer(type, buffer);
gl.bufferData(type, data, usage);
gl.bindBuffer(type, null);
return buffer
};
const putTexture1 = (gl, {
texture = createTexture(gl),
target = gl.TEXTURE_2D,
level = 0,
internal = gl.RGBA,
format = gl.RGBA,
type = gl.UNSIGNED_BYTE,
data = null,
flipY = false,
}) => {
gl.bindTexture(target, texture);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.texImage2D(target, level, internal, format, type, data);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
gl.bindTexture(target, null);
};
const putSubTexture = (gl, {
texture = createTexture(gl),
target = gl.TEXTURE_2D,
level = 0,
xOffset = 0,
yOffset = 0,
width = 1,
height = 1,
format = gl.RGBA,
type = gl.UNSIGNED_BYTE,
data = null,
flipY = false,
}) => {
gl.bindTexture(target, texture);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.texSubImage2D(target, level, xOffset, yOffset, width, height, format, type, data);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
gl.bindTexture(target, null);
};
const createTexture = (gl, {
texture = gl.createTexture(),
target = gl.TEXTURE_2D,
level = 0,
internal = gl.RGBA,
width = 1,
height = 1,
border = 0,
format = gl.RGBA,
type = gl.UNSIGNED_BYTE,
data = null,
min = gl.NEAREST,
mag = gl.NEAREST,
wrap_s = gl.CLAMP_TO_EDGE,
wrap_t = gl.CLAMP_TO_EDGE,
flipY = false,
}) => {
gl.bindTexture(target, texture);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY);
gl.texImage2D(target, level, internal, width, height, border, format, type, data);
gl.texParameteri(target, gl.TEXTURE_MIN_FILTER, min);
gl.texParameteri(target, gl.TEXTURE_MAG_FILTER, mag);
gl.texParameteri(target, gl.TEXTURE_WRAP_S, wrap_s);
gl.texParameteri(target, gl.TEXTURE_WRAP_T, wrap_t);
gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
gl.bindTexture(target, null);
return texture
};
const bufferMap = new Map;
const createVertexArray = (gl, program, attrs = {}) => {
const vao = gl.createVertexArray();
gl.bindVertexArray(vao);
Object.entries(attrs).forEach(([name, {
buffer,
type = gl.ARRAY_BUFFER,
size = 2,
format = gl.SHORT,
normalized = false,
stride = 0,
offset = 0,
}], loc) => {
if (!(buffer instanceof WebGLBuffer)) {
if (!bufferMap.has(buffer)) {
const key = buffer;
buffer = putBuffer(gl, { data: buffer });
bufferMap.set(key, buffer);
} else {
buffer = bufferMap.get(buffer);
}
}
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bindAttribLocation(program, loc, name);
gl.enableVertexAttribArray(loc);
gl.vertexAttribPointer(loc, size, format, normalized, stride, offset);
gl.bindBuffer(gl.ARRAY_BUFFER, null);
});
gl.bindVertexArray(null);
return vao
};
const setUniforms = (gl, program, uniforms = {}) => {