bundle.js

/* oak build --web */
// module system
const __Oak_Modules = {};
let __Oak_Import_Aliases;
function __oak_modularize(name, fn) {
	__Oak_Modules[name] = fn;
}
function __oak_module_import(name) {
	if (typeof __Oak_Modules[name] === 'object') return __Oak_Modules[name];
	const module = __Oak_Modules[name] || __Oak_Modules[__Oak_Import_Aliases[name]];
	if (module) {
		__Oak_Modules[name] = {}; // break circular imports
		return __Oak_Modules[name] = module();
	} else {
		throw new Error(`Could not import Oak module "${name}" at runtime`);
	}
}

// language primitives
let __oak_empty_assgn_tgt;
function __oak_eq(a, b) {
	if (a === __Oak_Empty || b === __Oak_Empty) return true;

	// match either null or undefined to compare correctly against undefined ?s
	// appearing in places like optional arguments
	if (a == null && b == null) return true;
	if (a == null || b == null) return false;

	// match all other types that can be compared cheaply (without function
	// calls for type coercion or recursive descent)
	if (typeof a === 'boolean' || typeof a === 'number' ||
		typeof a === 'symbol' || typeof a === 'function') {
		return a === b;
	}

	// string equality check
	a = __as_oak_string(a);
	b = __as_oak_string(b);
	if (typeof a !== typeof b) return false;
	if (__is_oak_string(a) && __is_oak_string(b)) {
		return a.valueOf() === b.valueOf();
	}

	// deep equality check for composite values
	if (len(a) !== len(b)) return false;
	for (const key of keys(a)) {
		if (!__oak_eq(a[key], b[key])) return false;
	}
	return true;
}
function __oak_acc(tgt, prop) {
	return (__is_oak_string(tgt) ? __as_oak_string(tgt.valueOf()[prop]) : tgt[prop]) ?? null;
}
function __oak_obj_key(x) {
	return typeof x === 'symbol' ? Symbol.keyFor(x) : x;
}
function __oak_push(a, b) {
	a = __as_oak_string(a);
	a.push(b);
	return a;
}
function __oak_and(a, b) {
	if (typeof a === 'boolean' && typeof b === 'boolean') {
		return a && b;
	}
	if (__is_oak_string(a) && __is_oak_string(b)) {
		const max = Math.max(a.length, b.length);
		const get = (s, i) => s.valueOf().charCodeAt(i) || 0;

		let res = '';
		for (let i = 0; i < max; i ++) {
			res += String.fromCharCode(get(a, i) & get(b, i));
		}
		return res;
	}
	return a & b;
}
function __oak_or(a, b) {
	if (typeof a === 'boolean' && typeof b === 'boolean') {
		return a || b;
	}
	if (__is_oak_string(a) && __is_oak_string(b)) {
		const max = Math.max(a.length, b.length);
		const get = (s, i) => s.valueOf().charCodeAt(i) || 0;

		let res = '';
		for (let i = 0; i < max; i ++) {
			res += String.fromCharCode(get(a, i) | get(b, i));
		}
		return res;
	}
	return a | b;
}
function __oak_xor(a, b) {
	if (typeof a === 'boolean' && typeof b === 'boolean') {
		return (a && !b) || (!a && b);
	}
	if (__is_oak_string(a) && __is_oak_string(b)) {
		const max = Math.max(a.length, b.length);
		const get = (s, i) => s.valueOf().charCodeAt(i) || 0;

		let res = '';
		for (let i = 0; i < max; i ++) {
			res += String.fromCharCode(get(a, i) ^ get(b, i));
		}
		return res;
	}
	return a ^ b;
}
const __Oak_Empty = Symbol('__Oak_Empty');

// mutable string type
function __is_oak_string(x) {
	if (x == null) return false;
	return x.__mark_oak_string;
}
function __as_oak_string(x) {
	if (typeof x === 'string') return __Oak_String(x);
	return x;
}
const __Oak_String = s => {
	return {
		__mark_oak_string: true,
		assign(i, slice) {
			if (i === s.length) return s += slice;
			return s = s.substr(0, i) + slice + s.substr(i + slice.length);
		},
		push(slice) {
			s += slice;
		},
		toString() {
			return s;
		},
		valueOf() {
			return s;
		},
		get length() {
			return s.length;
		},
	}
}

// tail recursion trampoline helpers
function __oak_resolve_trampoline(fn, ...args) {
	let rv = fn(...args);
	while (rv && rv.__is_oak_trampoline) {
		rv = rv.fn(...rv.args);
	}
	return rv;
}
function __oak_trampoline(fn, ...args) {
	return {
		__is_oak_trampoline: true,
		fn: fn,
		args: args,
	}
}

// env (builtin) functions

// reflection and types
const __Is_Oak_Node = typeof process === 'object';
const __Oak_Int_RE = /^[+-]?\d+$/;
function int(x) {
	x = __as_oak_string(x);
	if (typeof x === 'number') {
		// JS rounds towards higher magnitude, Oak rounds towards higher value
		const rounded = Math.floor(x);
		const diff = x - rounded;
		if (x < 0 && diff === 0.5) return rounded + 1;
		return rounded;
	}
	if (__is_oak_string(x) && __Oak_Int_RE.test(x.valueOf())) {
		const i = Number(x.valueOf());
		if (isNaN(i)) return null;
		return i;
	}
	return null;
}
function float(x) {
	x = __as_oak_string(x);
	if (typeof x === 'number') return x;
	if (__is_oak_string(x)) {
		const f = parseFloat(x.valueOf());
		if (isNaN(f)) return null;
		return f;
	}
	return null;
}
function atom(x) {
	x = __as_oak_string(x);
	if (typeof x === 'symbol' && x !== __Oak_Empty) return x;
	if (__is_oak_string(x)) return Symbol.for(x.valueOf());
	return Symbol.for(string(x));
}
function string(x) {
	x = __as_oak_string(x);
	function display(x) {
		x = __as_oak_string(x);
		if (__is_oak_string(x)) {
			return '\'' + x.valueOf().replace('\\', '\\\\').replace('\'', '\\\'') + '\'';
		} else if (typeof x === 'symbol') {
			if (x === __Oak_Empty) return '_';
			return ':' + Symbol.keyFor(x);
		}
		return string(x);
	}
	if (x == null) {
		return '?';
	} else if (typeof x === 'number') {
		return x.toString();
	} else if (__is_oak_string(x)) {
		return x;
	} else if (typeof x === 'boolean') {
		return x.toString();
	} else if (typeof x === 'function') {
		return x.toString();
	} else if (typeof x === 'symbol') {
		if (x === __Oak_Empty) return '_';
		return Symbol.keyFor(x);
	} else if (Array.isArray(x)) {
		return '[' + x.map(display).join(', ') + ']';
	} else if (typeof x === 'object') {
		const entries = [];
		for (const key of keys(x).sort()) {
			entries.push(`${key}: ${display(x[key])}`);
		}
		return '{' + entries.join(', ') + '}';
	}
	throw new Error('string() called on unknown type ' + x.toString());
}
function codepoint(c) {
	c = __as_oak_string(c);
	return c.valueOf().charCodeAt(0);
}
function char(n) {
	return String.fromCharCode(n);
}
function type(x) {
	x = __as_oak_string(x);
	if (x == null) {
		return Symbol.for('null');
	} else if (typeof x === 'number') {
		// Many discrete APIs check for :int, so we consider all integer
		// numbers :int and fall back to :float. This is not an airtight
		// solution, but works well enough and the alternative (tagged number
		// values/types) have poor perf tradeoffs.
		if (Number.isInteger(x)) return Symbol.for('int');
		return Symbol.for('float');
	} else if (__is_oak_string(x)) {
		return Symbol.for('string');
	} else if (typeof x === 'boolean') {
		return Symbol.for('bool');
	} else if (typeof x === 'symbol') {
		if (x === __Oak_Empty) return Symbol.for('empty');
		return Symbol.for('atom');
	} else if (typeof x === 'function') {
		return Symbol.for('function');
	} else if (Array.isArray(x)) {
		return Symbol.for('list');
	} else if (typeof x === 'object') {
		return Symbol.for('object');
	}
	throw new Error('type() called on unknown type ' + x.toString());
}
function len(x) {
	if (typeof x === 'string' || __is_oak_string(x) || Array.isArray(x)) {
		return x.length;
	} else if (typeof x === 'object' && x !== null) {
		return Object.getOwnPropertyNames(x).length;
	}
	throw new Error('len() takes a string or composite value, but got ' + string(x));
}
function keys(x) {
	if (Array.isArray(x)) {
		const k = [];
		for (let i = 0; i < x.length; i ++) k.push(i);
		return k;
	} else if (typeof x === 'object' && x !== null) {
		return Object.getOwnPropertyNames(x).map(__as_oak_string);
	}
	throw new Error('keys() takes a composite value, but got ' + string(x).valueOf());
}

// OS interfaces
function args() {
	if (__Is_Oak_Node) return process.argv.map(__as_oak_string);
	return [window.location.href];
}
function env() {
	if (__Is_Oak_Node) {
		const e = Object.assign({}, process.env);
		for (const key in e) {
			e[key] = __as_oak_string(e[key]);
		}
		return e;
	}
	return {};
}
function time() {
	return Date.now() / 1000;
}
function nanotime() {
	return int(Date.now() * 1000000);
}
function rand() {
	return Math.random();
}
let randomBytes;
function srand(length) {
	if (__Is_Oak_Node) {
		// lazily import dependency
		if (!randomBytes) randomBytes = require('crypto').randomBytes;
		return randomBytes(length).toString('latin1');
	}

	const bytes = crypto.getRandomValues(new Uint8Array(length));
	return __as_oak_string(Array.from(bytes).map(b => String.fromCharCode(b)).join(''));
}
function wait(duration, cb) {
	setTimeout(cb, duration * 1000);
	return null;
}
function exit(code) {
	if (__Is_Oak_Node) process.exit(code);
	return null;
}
function exec() {
	throw new Error('exec() not implemented');
}

// I/O
function input() {
	throw new Error('input() not implemented');
}
function print(s) {
	s = __as_oak_string(s);
	if (__Is_Oak_Node) {
		process.stdout.write(string(s).toString());
	} else {
		console.log(string(s).toString());
	}
	return s.length;
}
function ls() {
	throw new Error('ls() not implemented');
}
function rm() {
	throw new Error('rm() not implemented');
}
function mkdir() {
	throw new Error('mkdir() not implemented');
}
function stat() {
	throw new Error('stat() not implemented');
}
function open() {
	throw new Error('open() not implemented');
}
function close() {
	throw new Error('close() not implemented');
}
function read() {
	throw new Error('read() not implemented');
}
function write() {
	throw new Error('write() not implemented');
}
function listen() {
	throw new Error('listen() not implemented');
}
function req() {
	throw new Error('req() not implemented');
}

// math
function sin(n) {
	return Math.sin(n);
}
function cos(n) {
	return Math.cos(n);
}
function tan(n) {
	return Math.tan(n);
}
function asin(n) {
	return Math.asin(n);
}
function acos(n) {
	return Math.acos(n);
}
function atan(n) {
	return Math.atan(n);
}
function pow(b, n) {
	return Math.pow(b, n);
}
function log(b, n) {
	return Math.log(n) / Math.log(b);
}

// runtime
function ___runtime_lib() {
	throw new Error('___runtime_lib() not implemented');
}
function ___runtime_lib__oak_qm() {
	throw new Error('___runtime_lib?() not implemented');
}
function ___runtime_gc() {
	throw new Error('___runtime_gc() not implemented');
}
function ___runtime_mem() {
	throw new Error('___runtime_mem() not implemented');
}

// JavaScript interop
function call(target, fn, ...args) {
	return target[Symbol.keyFor(fn)](...args);
}
function __oak_js_new(Constructor, ...args) {
	return new Constructor(...args);
}
function __oak_js_try(fn) {
	try {
		return {
			type: Symbol.for('ok'),
			ok: fn(),
		}
	} catch (e) {
		return {
			type: Symbol.for('error'),
			error: e,
		}
	}
}
(__oak_modularize(__Oak_String(``),function _(){return ((DPI,DrawHeight,DrawWidth,Heads,LeftArms,LeftLegs,Light,Origins,RightArms,RightLegs,Scale,ShadowCanvas,ShadowCtx,SilhouetteCanvas,SilhouetteCtx,SpeechBubbles,SpeechDuration,SpeechFrequency,Torsos,addRandomHumans,angle,append,bearing,choice,circle,__oak_js_default,draw,each,fill,filter,handleResize,indexOf,integer,limb,makeHuman,makeSpeech,map,math,merge,number,partition,path,println,range,shadow,slice,sort)=>(({println,__oak_js_default,range,slice,map,each,filter,merge,append,indexOf,partition}=__oak_module_import(__Oak_String(`std`))),(math=__oak_module_import(__Oak_String(`math`))),(sort=__oak_module_import(__Oak_String(`sort`))),({integer,number,choice}=__oak_module_import(__Oak_String(`random`))),(DPI=__oak_js_default((window.devicePixelRatio??null),1)),(Scale=3),(SpeechDuration=3),(SpeechFrequency=100),(DrawWidth=(window.innerWidth??null)),(DrawHeight=(window.innerHeight??null)),(Light=[DrawWidth,0]),(Origins=[]),(Heads=[]),(Torsos=[]),(LeftArms=[]),(RightArms=[]),(LeftLegs=[]),(RightLegs=[]),(SpeechBubbles=[]),(SilhouetteCanvas=(document.querySelector)(__Oak_String(`#silhouettes`))),(SilhouetteCtx=(SilhouetteCanvas.getContext)(__Oak_String(`2d`))),(ShadowCanvas=(document.querySelector)(__Oak_String(`#shadows`))),(ShadowCtx=(ShadowCanvas.getContext)(__Oak_String(`2d`))),(Canvas=SilhouetteCanvas),(Ctx=SilhouetteCtx),path=function path(points=null){return ((start)=>((start=__oak_acc(points,0)),(Ctx.beginPath)(),(Ctx.moveTo)(__oak_acc(start,0),__oak_acc(start,1)),each(slice(points,1),function _(pt=null){return ((Ctx.lineTo)(__oak_acc(pt,0),__oak_acc(pt,1)))}),(Ctx.stroke)()))()},fill=function fill(points=null){return ((start)=>((Ctx.beginPath)(),(start=__oak_acc(points,0)),(Ctx.moveTo)(__oak_acc(start,0),__oak_acc(start,1)),each(slice(points,1),function _(pt=null){return ((Ctx.lineTo)(__oak_acc(pt,0),__oak_acc(pt,1)))}),(Ctx.fill)()))()},circle=function circle(center=null,radius=null){return ((Ctx.beginPath)(),(Ctx.arc)(__oak_acc(center,0),__oak_acc(center,1),radius,0,(2*(math.Pi??null))),(Ctx.fill)())},angle=function angle(deg=null){return (((__as_oak_string(-deg+90))/180)*(math.Pi??null))},bearing=function bearing(x=null,y=null,angle=null,dist=null){return [__as_oak_string(x+(cos(angle)*dist)),__as_oak_string(y+(sin(angle)*dist))]},limb=function limb(start=null,deg1=null,len1=null,deg2=null,len2=null){let p;return [(p=start),(p=bearing(__oak_acc(p,0),__oak_acc(p,1),angle(deg1),len1)),bearing(__oak_acc(p,0),__oak_acc(p,1),angle(__as_oak_string(deg1+deg2)),len2)]},shadow=function shadow(pt=null,origin=null){return ((ox,oy,skew,squish,x,y)=>(([x=null,y=null]=origin),([ox=null,oy=null]=pt),(squish=((((y-__oak_acc(Light,1)))/DrawHeight)*1.5)),(skew=((((x-__oak_acc(Light,0)))/DrawWidth)*1.5)),[__as_oak_string(ox+(skew*((y-oy)))),(y-(((oy-y))*squish))]))()},makeHuman=function makeHuman(x=null,y=null,posture=null){return ((facing)=>((x=(x-Scale)),(posture=__oak_js_default(posture,({}))),(facing=__oak_js_default((posture.facing??null),choice([Symbol.for('forward'),Symbol.for('left'),Symbol.for('right')]))),(posture=merge(({leftShoulder:number(-80,0),leftElbow:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('left'))?number(-135,0):__oak_eq(__oak_cond,Symbol.for('right'))?number(0,30):number(-135,20))(facing),rightShoulder:number(0,80),rightElbow:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('right'))?number(0,135):__oak_eq(__oak_cond,Symbol.for('left'))?number(-30,0):number(-20,135))(facing),leftHip:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('left'))?number(-70,30):__oak_eq(__oak_cond,Symbol.for('right'))?number(-80,20):number(10,10))(facing),leftKnee:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('left'))?number(10,80):__oak_eq(__oak_cond,Symbol.for('right'))?number(-80,-10):number(0,10))(facing),rightHip:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('right'))?number(-30,70):__oak_eq(__oak_cond,Symbol.for('left'))?number(-20,80):number(10,10))(facing),rightKnee:((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('right'))?number(-80,-10):__oak_eq(__oak_cond,Symbol.for('left'))?number(10,80):number(-10,0))(facing)}),posture)),__oak_push(Origins,[x,y]),__oak_push(Heads,((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('left'))?[__as_oak_string(x+Scale),(y-(11*Scale))]:__oak_eq(__oak_cond,Symbol.for('right'))?[__as_oak_string(x+(2*Scale)),(y-(11*Scale))]:[__as_oak_string(x+(1.5*Scale)),(y-(11*Scale))])((posture.facing??null))),__oak_push(Torsos,[[x,(y-(9*Scale))],[__as_oak_string(x+(3*Scale)),(y-(9*Scale))],[__as_oak_string(x+(3*Scale)),(y-(4*Scale))],[x,(y-(4*Scale))]]),__oak_push(LeftArms,limb([x,(y-(8*Scale))],(posture.leftShoulder??null),(2*Scale),(posture.leftElbow??null),(1.5*Scale))),__oak_push(RightArms,limb([__as_oak_string(x+(3*Scale)),(y-(8*Scale))],(posture.rightShoulder??null),(2*Scale),(posture.rightElbow??null),(1.5*Scale))),__oak_push(LeftLegs,limb([__as_oak_string(x+(Scale/2)),(y-(4*Scale))],(posture.leftHip??null),(2*Scale),(posture.leftKnee??null),(2*Scale))),__oak_push(RightLegs,limb([__as_oak_string(x+(Scale*2.5)),(y-(4*Scale))],(posture.rightHip??null),(2*Scale),(posture.rightKnee??null),(2*Scale)))))()},makeSpeech=function makeSpeech(){return ((__oak_cond)=>__oak_eq(__oak_cond,0)?wait(2,function _(){return (makeSpeech())}):((speech,x,y)=>(([x=null,y=null]=choice(Origins)),(speech=[__as_oak_string(x+(1.5*Scale)),(y-(11*Scale)),choice([Symbol.for('left'),Symbol.for('right')]),choice([__Oak_String(`Hello, World!`),__Oak_String(`What's up?`),__Oak_String(`How's it going?`),__Oak_String(`What a day!`),__Oak_String(`Excuse me!`),__Oak_String(`Thank you!`),__Oak_String(`I'm sorry...`),__Oak_String(`No problem!`),__Oak_String(`Of course!`),__Oak_String(`You gotta see this!`),__Oak_String(`Sorry I'm late,`),__Oak_String(`I love you!`),__Oak_String(`It's nothing.`),__Oak_String(`Have you both met?`),__Oak_String(`Never mind...`),__Oak_String(`What do you mean?`),__Oak_String(`You should join us!`),__Oak_String(`Goodbye!`),__Oak_String(`Have a safe flight!`),__Oak_String(`What the #!$?`),__Oak_String(`What happened?`),__Oak_String(`Did you see that tweet?`),__Oak_String(`Are you on Instagram?`)])]),__oak_push(SpeechBubbles,speech),draw(),wait(SpeechDuration,function _(){return ((SpeechBubbles=filter(SpeechBubbles,function _(sp=null){return !__oak_eq(sp,speech)})),draw())}),wait((math.min)((SpeechFrequency/len(Origins)),__as_oak_string(SpeechDuration+1)),function _(){return (makeSpeech())})))())(len(Origins))},draw=function draw(){return ((Gradients)=>((Ctx=ShadowCtx),((__oak_assgn_tgt,__oak_assgn_val)=>(__is_oak_string(__oak_assgn_tgt)?__oak_assgn_tgt.assign(lineWidth,__oak_assgn_val):__oak_assgn_val===__Oak_Empty?delete (__oak_assgn_tgt.lineWidth):(__oak_assgn_tgt.lineWidth)=__oak_assgn_val,__oak_assgn_tgt))(__as_oak_string(Ctx),Scale),((__oak_assgn_tgt,__oak_assgn_val)=>(__is_oak_string(__oak_assgn_tgt)?__oak_assgn_tgt.assign(strokeStyle,__oak_assgn_val):__oak_assgn_val===__Oak_Empty?delete (__oak_assgn_tgt.strokeStyle):(__oak_assgn_tgt.strokeStyle)=__oak_assgn_val,__oak_assgn_tgt))(__as_oak_string(Ctx),__Oak_String(`rgba(0, 0, 0, .3)`)),((__oak_assgn_tgt,__oak_assgn_val)=>(__is_oak_string(__oak_assgn_tgt)?__oak_assgn_tgt.assign(fillStyle,__oak_assgn_val):__oak_assgn_val===__Oak_Empty?delete (__oak_assgn_tgt.fillStyle):(__oak_assgn_tgt.fillStyle)=__oak_assgn_val,__oak_assgn_tgt))(__as_oak_string(Ctx),__Oak_String(`rgba(0, 0, 0, .3)`)),(Ctx.setTransform)(DPI,0,0,DPI,0,0),(Ctx.clearRect)(0,0,(Canvas.width??null),(Canvas.height??null)),each(Heads,function _(head=null,i=null){return (circle(shadow(head,__oak_acc(Origins,__oak_obj_key((i)))),Scale))}),each(Torsos,function _(torso=null,i=null){return ((origin)=>((origin=__oak_acc(Origins,__oak_obj_key((i)))),fill(map(torso,function _(pt=null){return shadow(pt,origin)}))))()}),each(LeftArms,function _(arm=null,i=null){return ((origin)=>((origin=__oak_acc(Origins,__oak_obj_key((i)))),path(map(arm,function _(pt=null){return shadow(pt,origin)}))))()}),each(RightArms,function _(arm=null,i=null){return 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((tcall)=>((tcall=time()),(dargs=args),((__oak_cond)=>__oak_eq(__oak_cond,true)?((__oak_cond)=>__oak_eq(__oak_cond,true)?((target=__as_oak_string(tcall+duration)),((__oak_cond)=>__oak_eq(__oak_cond,Symbol.for('leading'))?f(...dargs):__oak_eq(__oak_cond,Symbol.for('trailing'))?((waiting__oak_qm=true),wait((target-time()),function _(){return ((waiting__oak_qm=false),f(...dargs))})):null)(firstCall)):((timeout)=>((waiting__oak_qm=true),(timeout=(target-tcall)),(target=__as_oak_string(target+duration)),wait(timeout,function _(){return ((waiting__oak_qm=false),f(...dargs))})))())((target<=tcall)):null)(!waiting__oak_qm)))()}))()},println=function println(...xs){return ((__oak_cond)=>__oak_eq(__oak_cond,0)?print(__Oak_String(`
`)):((out)=>((out=reduce(slice(xs,1),string(__oak_acc(xs,0)),function _(acc=null,x=null){return (__as_oak_string(__as_oak_string(acc+__Oak_String(` `))+string(x)))})),print(__as_oak_string(out+__Oak_String(`
`)))))())(len(xs))},({_asPredicate,_baseIterator,_hToN,_nToH,append,clamp,clone,compact,contains__oak_qm,debounce,__oak_js_default,each,entries,every,filter,find,first,flatten,fromHex,identity,indexOf,join,last,loop,map,merge,once,partition,println,range,reduce,reverse,slice,some,take,takeLast,toHex,uniq,values,zip})))()}),(__Oak_Import_Aliases=({})),__oak_module_import(__Oak_String(``)))