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index.html
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<html>
<head>
<link href="assets/favicon.png" rel="icon" data-n-head="true" type="image/png">
<meta name="title" content="brubsby">
<meta name="description" content="ontic record of entitative brubsby relations; alternatively: my website :)">
<meta name="keywords" content="brubsby, programming, math, computer art">
<meta name="robots" content="index, follow">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="language" content="English">
<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1">
<title>brubsby</title>
<style>
@font-face {
font-family: 'DF';
src: url('assets/LessPerfectDOSVGA.woff') format('woff'), /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
url('assets/LessPerfectDOSVGA.ttf') format('truetype'); /* Chrome 4+, Firefox 3.5, Opera 10+, Safari 3—5 */
}
@media (orientation: landscape) {
div.ascii {
grid-area: 1 / 2 / span 2 / span 1;
}
div.tooltip {
grid-area: 2 / 1 / span 1 / span 1;
}
span.tooltip {
bottom: 0;
left: 0;
padding-bottom: 1em;
padding-left: 16px;
text-align: left;
}
}
@media (orientation: portrait) {
div.ascii {
grid-area: 2 / 1 / span 1 / span 2;
}
div.tooltip {
grid-area: 1 / 2 / span 1 / span 1;
}
span.tooltip {
bottom: 0;
right: 0;
padding-bottom: 1em;
padding-right: 16px;
text-align: right;
}
}
@media (prefers-color-scheme: dark) {
body {
background: black;
color: white;
}
}
@media (prefers-color-scheme: no-preference), (prefers-color-scheme: light) {
body {
background: white;
color: black;
}
}
html {
overflow: hidden;
}
body {
font-size: 20px;
font-family: Courier, monospace;
padding: 2em 3em 2em 3em;
}
div.container {
display: grid;
grid-column-gap: 68px;
grid-row-gap: 10px;
grid-template-columns: min-content auto;
grid-template-rows: min-content auto;
height: 100%;
}
div {
font-weight: normal;
}
ol, li {
list-style-type: none;
padding-left: 8px;
}
div.menu {
margin: 0;
grid-area: 1 / 1 / span 1 / span 1;
}
h1 {
margin: 0;
font-weight: normal;
style: none;
font-size: 3em;
}
div.ascii {
vertical-align: top;
white-space: pre;
line-height: 1;
font-size: 24px;
font-family: "DF", monospace;
}
div.tooltip {
position: relative;
}
span.tooltip {
position: absolute;
}
a {
text-decoration: none;
color: inherit;
}
li:hover {
text-decoration: underline;
}
</style>
<!-- Global site tag (gtag.js) - Google Analytics -->
<script async src="https://www.googletagmanager.com/gtag/js?id=UA-152720878-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-152720878-1');
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/seedrandom/2.3.10/seedrandom.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/mathjs/6.2.2/math.min.js"></script>
<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/gpu.js/1.10.4/gpu.min.js"></script>-->
<script src="js/simplex-noise.js"></script>
<script>
/*----------- Class Definitions -----------*/
class ObjectSampler {
constructor() {this.objects=[];this.total_weight=0;return this;}
put(obj, weight=1) {
this.total_weight+=weight;
this.objects.push({"obj":obj,"weight":weight,"total_weight":this.total_weight});
return this;
};
uniform_sample() {return this.objects[Math.floor(this.objects.length * Math.random())]["obj"];}
sample() {
var index_val = this.total_weight * Math.random();
for (var i = 0; i < this.objects.length; i++) {
if (index_val < this.objects[i]["total_weight"]) return this.objects[i]["obj"];
}
throw "sample error, random value was " + index_val + " but total weight was " + this.total_weight;
}
get_index(i) {return this.objects[i]["obj"];}
size() {return this.objects.length;}
}
class SortedSet {
constructor(array = [], compare=() => {if (a === b) return 0; return a < b ? -1 : 1;}) {
if (typeof array === 'function') { compare = array; array = []; }
this._array = []; this.compare = compare;
const length = array.length; let index = 0;
while (index < length) { this.add(array[index++]); }
}
get size() { return this._array.length; }
[Symbol.iterator]() { return this._array[Symbol.iterator](); }
clear() { this._array = []; return this; }
add(element) { let high = this._array.length; let low = 0;
while (high > low) {
const index = Math.floor((high + low) / 2);
const ordering = this.compare(this._array[index], element);
if (ordering < 0) { low = index + 1; }
else if (ordering > 0) { high = index } else { return this; }
}
this._array.splice(low, 0, element); return this; }
has(element) { return this.indexOf(element) !== -1; }
indexOf(element) { let high = this._array.length; let low = 0;
while (high > low) {
const index = Math.floor((high + low) / 2);
const ordering = this.compare(this._array[index], element);
if (ordering < 0) { low = index + 1; }
else if (ordering > 0) { high = index; }
else { return index; }} return -1;}
delete(element) {
const index = this.indexOf(element);
if (index === -1) { return; }
const removed = this._array[index]; this._array.splice(index, 1);
return removed; }
pop_index(index) {
const removed = this._array[index]; this._array.splice(index, 1);
return removed; }
get_index(index) { return this._array[index]; }
}
class Particle {
constructor(position, speed_limit=null, velocity=[0, 0]) {
this.position = position;
this.velocity = velocity;
this.speed_limit = speed_limit;
this.framecount = 0;
}
step(vector, timestep, acceleration_or_velocity=true) {
this.framecount++;
if(acceleration_or_velocity) {
this.velocity = [this.velocity[0] + vector[0] * timestep,
this.velocity[1] + vector[1] * timestep];
if (this.speed_limit) {
var speed = Math.sqrt(Math.pow(this.velocity[0], 2) + Math.pow(this.velocity[1], 2));
if (speed > this.speed_limit) {
var angle = Math.atan2(this.velocity[1], this.velocity[0]);
this.velocity = [this.speed_limit * Math.cos(angle), this.speed_limit * Math.sin(angle)];
}
}
} else {
this.velocity = [vector[0], vector[1]];
}
this.position = [this.position[0] + this.velocity[0] * timestep,
this.position[1] + this.velocity[1] * timestep];
}
inbounds(width, height) {
return this.position[0] > 0 && this.position[0] < width
&& this.position[1] > 0 && this.position[1] < height;
}
framecount_under(test_value) {
return this.framecount < test_value;
}
}
/*----------- Global init -----------*/
var canvas, flat_index_list, simplex_noise, rows, columns,
animation_speed_multiplier, min_dim, max_dim, flat_mapgen_tiles,
mapgen_tiles, mapgen_probabilities, falloff_map, velocity_pixels,
position_pixels, bounces, text_to_print, flip, line_points, last_points,
empty_half_pixels, browser_info, remaining_particles, particles,
random_edge_point_sampler, active_sand_coords, grid, jitter_offsets,
gravity_offset, dropper_movement_funcs, dropper_movement_func, fractals,
fractal, center, last_timestamp, average_framerate, target_framerate,
universe, rules;
var char_height = 24;
var half_char_height = char_height / 2;
var char_width = 12;
var frame_count = 0;
var index_lists = [];
/*----------- Helper Functions -----------*/
var init_flat_index_list = (rows, columns, sort_func=null) => {
if (!flat_index_list) {
flat_index_list = [];
for (var i = 0; i < (columns + 1) * rows - 1; i++) {
if (i % (columns + 1) == columns) continue;
flat_index_list.push(i);
}
if (sort_func) {
flat_index_list.sort(sort_func)
}
}
};
var init_simplex_noise = () => {
if (!simplex_noise) {
simplex_noise = new SimplexNoise(Math.random().toString());
}
};
var init_mapgen_tiles = () => {
if (!mapgen_tiles) {
// drop ttf into fontdrop.info for codepoints
// ≈.,`ⁿ⌠τ↑♠ⁿ∩⌂▲ΔΛп
mapgen_tiles = ['≈', '.', ',', '∩', '\u007F', '\u001E'];
flat_mapgen_tiles = [];
for (var i = 0; i < mapgen_tiles.length; i++) {
if (Array.isArray(mapgen_tiles[i])) {
flat_mapgen_tiles.push(mapgen_tiles[i][Math.floor(Math.random() * mapgen_tiles[i].length)]);
} else {
flat_mapgen_tiles.push(mapgen_tiles[i]);
}
}
}
};
var init_falloff_map = (rows, columns, char_width, char_height) => {
if (!falloff_map) {
falloff_map = (coords) => {
var width = columns * char_width;
var height = rows * char_height;
var x = (coords[0] / width) * 2 - 1;
var y = (coords[1] / height) * 2 - 1;
var value = Math.max(Math.abs(x), Math.abs(y));
var a = 3;
var b = 2.2;
value = Math.pow(value, a) / (Math.pow(value, a) + Math.pow((b - b * value), a))
return value;
}
}
};
var get_ascii_char_from_canvas_index = (ascii_art, canvas_columns, canvas_rows, canvas_index) => {
var ascii_width = ascii_art[0].length;
var ascii_height = ascii_art.length;
var ascii_midpoint = [Math.floor(ascii_width / 2), Math.floor(ascii_height / 2)];
var canvas_midpoint = [Math.floor(canvas_columns / 2), Math.floor(canvas_rows / 2)];
var canvas_coords = get_coords(canvas_columns, canvas_index);
var ascii_x = canvas_coords[0] - canvas_midpoint[0] + ascii_midpoint[0];
var ascii_y = canvas_coords[1] - canvas_midpoint[1] + ascii_midpoint[1];
ascii_x = Math.min(Math.max(0, ascii_x), ascii_width - 1);
ascii_y = Math.min(Math.max(0, ascii_y), ascii_height - 1);
return ascii_art[ascii_y][ascii_x];
}
var get_canvas_index = (columns, x, y) => { return x + y * (columns + 1); };
var get_coords = (columns, index) => { return [index % (columns + 1), Math.floor(index / (columns + 1))];};
var get_pixel_coords = (columns, index, char_width, char_height) => {
var coords = get_coords(columns, index);
return [coords[0] * char_width, coords[1] * char_height];
}
var get_simplex_noise_at = (coords, frequency, amplitude, octaves=1, lacunarity=2, gain=0.5) => {
var octave_amplitude = amplitude;
var octave_frequency = frequency;
var result = 0;
for (var i = 0; i < octaves; i++) {
if (Array.isArray(coords)) {
switch (coords.length) {
case 1:
result += octave_amplitude * simplex_noise.noise2D(octave_frequency * coords[0], 0);
break;
case 2:
result += octave_amplitude * simplex_noise.noise2D(octave_frequency * coords[0], octave_frequency * coords[1]);
break;
case 3:
result += octave_amplitude * simplex_noise.noise3D(octave_frequency * coords[0], octave_frequency * coords[1], octave_frequency * coords[2]);
break;
case 4:
result += octave_amplitude * simplex_noise.noise4D(octave_frequency * coords[0], octave_frequency * coords[1], octave_frequency * coords[2], octave_frequency * coords[3]);
break;
}
} else {
result += octave_amplitude * simplex_noise.noise2D(octave_frequency * coords, 0);
}
octave_amplitude *= gain;
octave_frequency *= lacunarity;
}
return result;
}
var simplex_value_to_vector = (amplitude, simplex_value, jitter_magnitude=0) => {
var vector = [amplitude * Math.cos(simplex_value * Math.PI),
amplitude * Math.sin(simplex_value * Math.PI) + jitter_magnitude * Math.sin(Math.random() * 2 * Math.PI)];
if (jitter_magnitude != 0) {
var random_theta = Math.random() * 2 * Math.PI;
vector = [vector[0] + jitter_magnitude * Math.cos(random_theta),
vector[1] + jitter_magnitude * Math.sin(random_theta)];
}
return vector;
}
var setCharAtIndex = (canvas,index,chr) => {
var str = canvas.text();
if(index > str.length-1) return str;
var new_str = str.substr(0,index) + chr + str.substr(index+1);
canvas.text(new_str);
};
var setHalfPixel = (canvas,x,y,on_off=true,rules=[' ', '.', '`', ':']) => {
// set "pixel" defined at top or bottom half of char, in this coord system
// there are twice as many y rows
var canvas_index = get_canvas_index(columns, x, Math.floor(y/2));
var old_char = getCharAtIndex(canvas, canvas_index);
var old_char_index = rules.indexOf(old_char);
if (old_char_index == -1) {
old_char_index = 0; // treat as neight pixel set
}
var top_val = old_char_index > 1;
var bottom_val = old_char_index == 1 || old_char_index == 3;
var is_bottom_val = y % 2;
if (is_bottom_val) {
bottom_val = on_off;
} else {
top_val = on_off;
}
var new_char_index = (bottom_val ? 1 : 0) + (top_val ? 2 : 0);
setCharAtIndex(canvas, canvas_index, rules[new_char_index]);
return old_char;
}
var getOtherHalfCoord = (x, y) => [x, ((y % 2) ? -1 : 1) + y];
var getCharAtIndex = (canvas,index) => {
return canvas.text().charAt(index);
};
var get_bresenham_line_points = (line_points, is_connected=false) => {
var return_points = [];
for (var i = 0; i < line_points.length; i++) {
var x0 = line_points[i][0];
var y0 = line_points[i][1];
var x1, y1;
if (i == line_points.length - 1) {
if (is_connected && line_points.length > 2) {
x1 = line_points[0][0];
y1 = line_points[0][1];
} else {
break;
}
} else {
x1 = line_points[i+1][0];
y1 = line_points[i+1][1];
}
if (isNaN(x0) || isNaN(x1) || isNaN(y0) || isNaN(y1)) {
throw "NaNs detected";
}
var dx = Math.abs(x1-x0);
var sx = x0<x1 ? 1 : -1;
var dy = -Math.abs(y1-y0);
var sy = y0<y1 ? 1 : -1;
var err = dx+dy;
while (true) {
return_points.push([x0, y0]);
if (x0==x1 && y0==y1) break;
var e2 = 2*err;
if (e2 >= dy) {
err += dy;
x0 += sx;
}
if (e2 <= dx) {
err += dx;
y0 += sy;
}
}
}
return return_points;
}
var get_bresenham_circle_points = function (x0, y0, radius) {
var return_points = [];
if (isNaN(x0) || isNaN(y0) || isNaN(radius)) {
throw "NaNs detected";
}
var x = radius;
var y = 0;
var radiusError = 1 - x;
while (x >= y) {
return_points.push([x + x0, y + y0]);
return_points.push([y + x0, x + y0]);
return_points.push([-x + x0, y + y0]);
return_points.push([-y + x0, x + y0]);
return_points.push([-x + x0, -y + y0]);
return_points.push([-y + x0, -x + y0]);
return_points.push([x + x0, -y + y0]);
return_points.push([y + x0, -x + y0]);
y++;
if (radiusError < 0) {
radiusError += 2 * y + 1;
}
else {
x--;
radiusError+= 2 * (y - x + 1);
}
}
return return_points;
};
var getUrlParameter = function getUrlParameter(sParam) {
var sPageURL = window.location.search.substring(1),
sURLVariables = sPageURL.split('&'),
sParameterName,
i;
for (i = 0; i < sURLVariables.length; i++) {
sParameterName = sURLVariables[i].split('=');
if (sParameterName[0] === sParam) {
return sParameterName[1] === undefined ? true : decodeURIComponent(sParameterName[1]);
}
}
};
var isInt = (a) => { return (typeof a==='number' && (a%1)===0); };
var roundFloat = a => a.toFixed(2).replace(/(^|(?<=-))0+/,'');
var get_random_int_with_expected_float_average = (expected) => (Math.random() < expected % 1 ? 1 : 0) + Math.floor(expected)
var get_coord_offset = (coord, offset) => [coord[0] + offset[0], coord[1] + offset[1]];
var mark_grid = (grid, coord, value) => {grid[coord[0]][coord[1]] = value}
var is_grid_offset_in_bounds = (grid, coord, offset) => {
var new_coord = get_coord_offset(coord, offset);
if (new_coord[0] >= 0 && new_coord[1] >= 0 && new_coord[0] < grid.length && new_coord[1] < grid[0].length) {
return true;
}
return false;
}
var is_grid_offset_true = (grid, coord, offset) => {
var new_coord = get_coord_offset(coord, offset);
return grid[new_coord[0]][new_coord[1]];
}
var grid_coords_to_complex = (y, x, height, width, char_height, char_width, bounds) => {
var re_range = bounds[1].re - bounds[0].re;
var im_range = bounds[1].im - bounds[0].im;
var re_pos = ((x + 0.5) * char_width / width) * re_range + bounds[0].re;
var im_pos = ((y + 0.5) * char_height / height) * im_range + bounds[0].im;
return math.complex(re_pos, im_pos);
}
var fractal_iteration = (point, formula, max_iterations, start=0, threshold=2) => {
var iterations = 1;
var value = formula(start, point);
while (iterations < max_iterations && math.abs(value) < threshold) {
value = formula(value, point);
iterations++;
}
return iterations == max_iterations;
}
/*----------- Data Init -----------*/
var init_poob_details = () => {
poob_detail = [];
poob_detail.push([
"#%&%%@,((##..*********.**.,(,******",
"@@@@@@@.%(@@.*,/((((/*****,,..*****",
"@@@@@@,#////((#(##%#(///***/*******",
"@@@@#*(###%#%##(/####(((((((//*,***",
"@@@(#((((/(((////////(###%####(//**",
"%&/#((((/(////****//**//(######//**",
"###%###(%%#(/********//((#&&%%#((//",
"#####@@@@@&&&%%(/****///*//&&@(/***",
"####&@@@@@@@@&&((//****//#%@@(/****",
"%###@@@@@@@@@@@@%(((((((/////##&(((",
"%%%%@@@@@@@@@@@&((/////////*///##%(",
"&&&&&@@@@@@@&%#(((/(//(((////*/%/((",
"&&&&@@@&&&%%##(((#(//////(//////#((",
"@@&@@@&&@&%&%%#((#(#%#///(//////(((",
"&&&&@@@@@@&&%%%#(####%##(/((////(##",
"&&&&&&@@@@@@&%#%##########((((//(#(",
"@&&&&&&&&&@@@&&%%%#####%%#####((###",
"@&&&&&&&&&&&@@&&%%%%%##%&%%&%##(###",
"@@&&&%&&&&&&&&&@&&&&%%%%&&&&&%#((##"
]);
poob_detail.push([
"###%%%%%%%%%##################(//(((//#/,**(/*,***",
"####%%%%%%%%#%%%%#/((#%((#/###(/#(/*,(*****,/*...*",
"%######%%%%%#(%(##///(((((/((///(#(/*/(/*//,,,*,,*",
"#%%%%%%%%%#(/*/*/(//**/((//#(//((/(//(//(/(/*,//,*",
"%%%%%%%%%%(/////*//(*,*///**////**/*//(((##/,.,//*",
"%%%%%%%%#////((//////**////***//**//////((/(*,*,.*",
"%%%%%%%#((((//(///*//****/////**//////(((((/,,,.,*",
"%%%%%###((#(//****/*******/(///*/*/*/((/((/*/**(,*",
"%%&&&%##(((((((/(/**/*****,/(//(##(///*((/((/*****",
"%%&&%#####(((###(#/*(///*****(/%#(/#(((//((///****",
"%%&&%%%%########(/((/*//*//***/*((#(//(((((((///**",
"%%&&%###(###%&@(##((////*///**//*////***////**/***",
"%&&%####%&@&(//////////////*/*////////////**(*****",
"%%&%#%%%%%&&%#%((((((////**/*/**********/***///***",
"%%&&%%&&&%#####((///**///***//****,*****/////*///*",
"%&%&&&&&%%%%###((///((////(%%&&&&&&&*******/////(*",
"&%%&&&&%%%######%%(/////(&&@&&%&%%&&&(**//*////((*",
"%%%%&&&%%#%##(((((((((//&@@@@&&%&&@@@%***//**/((/*",
"%%&&&&%%%###%##%###(#(//#@@@@@@@&&@@@(***/**/((//*",
"%&&&&&%%%%#%%%########(//(#&@&@@&@&&(/***///((///*",
"%%&&&&%%%%%##%###%%#%#((////#&&&&@#//*///(//(((//*",
"%&&&&&%%%%%%%#######((///#((#(/%#(##(((###(((((***",
"&&&&@@%%&&%%%&%##&&%%##(####(##%&&%%(///((#(#((#(*",
"&&&&@@&%%%%%#(#%&&&&&&&&%%#%%%####(////((((%###((*",
"&&&&%#%#%##&@@%&&&&&&%####((//(((/(((/##(##(#*****",
"&&&&%##%#%%#%&%%%&&&%%%###(#/##(#(/#((##%#%((*****",
"&&%%%%###%%%((#(#%&&%%%%%%%#%###%(##%#%%#%###(#***",
"%&%#(%##%%%####%%%%%%%%%&&&&&%%%%%%%%%%#(#%%(((((*",
"%#%###%%###%%%%%%###%#%#%#%%&&&&@@&@&&%%(&%%#%#((*",
"&%(%%%#&&%##%#%######%##%%%##%%#%%%%###(#%%#%#%##*"
]);
poob_detail.push([
"####%%%%%%%%%%%%%%%%%%%%%%################%###################(((/((/*/#(/***((((*,*,,,///(#/,*(##/*",
"#####%%%%%%%%%%%%%%%%%%##########(##(#((#%%%#(((##%###%(######(/((//**//*//##/**,,,/*/(((/,,*,,**/,*",
"##########%%%%%%%%%%%%%%%####%%%###((((((#####((#(###(/###%%##(/((((/((/***//,,*/***,,/*,/**,...,,,*",
"#########%##%%%%%%%%%%%##%##%%##%%%%#//(/(((#%#(((#(((/####(/(/((##(///*,**/**//*/////*,,,,,,,**/***",
"####%#%#%%#%%%%%%%%%%%%%###%%#%#####((//*/(((((##(#((/((#((/((((/(/#((/***///((/*,*,//**,*,/////(/**",
"####%#%%%%%%%%%%%%%%%%%%##(/(#######(///**/((#((((/((/((((//////(//(///////(((///////****,,.,,,**,,*",
"##%%%%%%%%%%%%%%%%%%%##((///////(((((//*/**//(##(/((//(#((//(/((//////((////(///////*******,*((#(/,*",
"#%%%%%%%%%%%%%%%%%%%%#(((/(//**///(((//******//((((///(#(//////(///(/////((((///(((((((((/***,*/,,**",
"#%%%%%%%%%%%%%%%%%%###(///((////**////(//*,***//////**/*/****/*///////((/////((((((((##///,...,*/***",
"%%%%%%%%%%%%%%%%%%%######((////////**//(//****///////**////**/************//((((((((((/***,,*//*,,,*",
"%%#%%%%%%%%%%%&%%#(((//((((((////////*////**,**//**///***//*****************//((((((//***,,,**,....*",
"%%%%%%%%%%%%%%%#((((///////(/(////////**///****/*/*/////*/***/////((###((((((/((((((((/((/,..,,,,***",
"%%%%%%%%%%%&%%#(#(((((((/////(///////****//******////////*/***///////***///////(###(/((/**,,,,,,..**",
"%%%%%%%%%%%%#%#((((((##((/////(/*////**/**//*//***/*/(((/////*/***////////////((((#((((((/,,****///*",
"%%%%%%%%%%%#####(####((((/(//******/*********/****/////(///////******/**/////////****/////(//*,*****",
"%%%%%%%%%&&%%%%(((((((((//////**////*/*/******/*****//(/((/////////////***//((((((((((/////,***,.,**",
"%%%%%%%&&%%%%%#(##(((((((/(/(((/((//*/***/*/**//******/(((////(/(/(((((/*///**/(((((((///(/,*,,,,,**",
"%&%&&&&&&&###((((((((((((((((((#(/*****//*/*/*********//(///(%&@@%((//////////((((//(((/***/(***,***",
"%%%&&&&&&&%#######((((((((#(((((((#((***///////(********///(((%&@@##%%#((((((/(((//(((((((///((///**",
"%%%%%&&&&%#####(#######(((##########((//(*//**/*/*********(//**/##&&((////##((((((///((((////*******",
"%%%%&&&&####%%##(#######((##%%%###(((//*/*/****///*********////(((%%#(/////((((((((((((///**/*******",
"%%%%%&&&%#%%%%%%###########(////////**//////*/*/*/////*****/*/*////((/////*////((///((((((////******",
"%%%%%&&&%%########((#####%%&((#%##(////***/(/////////***/**/**///////******//////(///*/////*********",
"%%%%&&&&########(###%%&@@@&&/%##((((((/(////*//*//////*//*////////////////*/*///////////*////***/***",
"%%%%&&&&%##%%#######%%%&@@@@@&&%%(((///////////(/////////**/**/**///*///////////////////////*****//*",
"%%%%&&&&%%%#((#####%%%&@@@@@%(((/(((((((/((/////////////*//******/**//**////**////////********////**",
"%%%%%&&##%%%##%#%#%&&&&&%%####(((//(((((/(((//*//*/*///*////*****//****/******////////////////******",
"%%%&&&&%%%%&&&&&&&&%%&&%%%##%####((((((////////////****//////*/*******************/*/******/***//***",
"%%%&&&&&&&%%%&&&&&&%%%%%%####((((((///******/*//**//*****////*/*******,***********/**/////****////**",
"%%%%&&&&&&%%&&@&&&%%%##%##(####(((((//////*******//***/***//*///((//*******,***/////////////*////***",
"%%%%%&&&&&&&&&&&&%%%%%%#####((((((((###((//////***////(((((#%&&&&&&&&***,,**///*///*///*****/////***",
"&%&&&&&&&&&&&&&&%%%%%%%#(#######((////////(//((////((#%&&&&&&&&&&&&&&&&&*,***///****/////(((((/((***",
"%&%%%&&&&&&&&&&%%%%%%%##############(/*/**//////((#%&&&&&@&&&&%&%%%%%&&&&&&*****///////////////((//*",
"%%%%%%%&&&&&&&&%%%%%%#######%######%%%%%(///*////#&@&&&@@&%%%%#%%&%&&&@&&&&%*****////**///////(((((*",
"%%%%%&%&&&&&&%&%%%%%%################((####(////(&@@@@@@&%&&@&%&&&&%&@@@@&&%********/*****///((/(//*",
"%%%%%&%&&&&&&&%%%%##%%#####(((((((((#((((((/////(&@@@@@@&&@@@@&&&&&&@@@@@@******////////((//(((//***",
"%%%&&&&&&&&&&%&%%%########################(((///(%@@@@@@&@@@@@@@&&&&&@@@&&%(******///////(((((((//**",
"%%%&&&&%&&&&&&%%%%###########%#%##########((////((#&@@@@@@@@@@@@&&@&&&&&&@%/*******///**//(#((/////*",
"%&&&&&&&&&&&&%%%%%#%%%##%%%%%#############(((((///((%%&&&%&&&@@@&&@@&&&&&%(/*******//*////((/(/(//**",
"%&&%%&&&&&&&%%%%###%%%%%#%%#######%###%%%####((((((/((#%@@@@@@@&&&@@&&&((/***//*///////((((//////***",
"%%&&&&&&&&&&&%%##%%%%%&%###%######%%%%%%%#%%#(((//((//((%&@@@@&&&&@&&((////*/////////(/((((////(/***",
"%%&&&&&&&&%%%%#%#%%%%%#%#%%%######%%%%%%###(((((((((/////(%#%%#%%%&@#(#(((//////(((((/((((((//////(*",
"%%%&&&&&&&&%&&%%%%&%%%%%%%%#######%%########((///////(#//#/(((((####(##/#((((/((###(##((((//(((((***",
"%%&&&&&&&@@&%&%%%&&%%%%&%%#%%####%%#########(((((((((#((((((((((###(%%(#(((((((####(#(((/(((##(*****",
"&&&&&&&&&&&@@&%%&%&%%%%%%&%%&%%###%&%%%%%%%###(((((#(#((#(((#(#####%&%&%%%(((//(((((#(#((#(((((###(*",
"&&&&&&&&&&@@&%%%%&%&%%%%%%%%%%%%#%&&&%&&%%######%%##%#####&&%&&&%&&%%#(((//////((((#####(((((((((***",
"&&&&&&&&&@@@&&&%%%%%%%%%%%%###%%%&&&&&&&&&%%%#&&&%%%%%%%%%&&%&&%&&%%%((*//*///((((((/(###(((##(#(((*",
"&&&&&&&&&@@@@%%#%%%%%%%####%%%&%&&&&&@@%@&%&&&&&%%#########((/#/((((*/////((/(((((((%%%#(#(##((#(***",
"&&&&&&&&&&&%%%%%#%##%#%####%&&&&&%&&&&&@&&&&&&&&%%%###(#(((((///(/(((((/(((//((/(((#((%####((((#(***",
"&&&&&&&&@%%&%###%%#%%%%###&&&&@@&%%%%&&&&&&%%&%#######(((((/*((//((/((/(##(/(((#######%%#####((##***",
"&&&&&&&@&@&##%%%###%%##%%&&&&%%%%%%%&&&&&&&%%#%##%####((#/(##(((((((((###((((###%%##%#####((#*******",
"&&&&&&%#%###%%%%#%#%%%#%&&%####%%%%%&&&&&&&%%#%###%%%%####(((#(#((###(((%%%#((%%%%%%%#%%#####((((***",
"&&&&%%%%#&%#%%#%%%&%###########%&&&&&%%&%##%#%%%%%%%##%#(###%#(#%##(((%##%(#%&&%%%%%%%###((((##*****",
"%&&&%##%&%%#(#%###%#%#####(#(#(##%%%%%&%%%%%%%%%%%%%%%%%%%#(%%%####(##((#####%##%#######(((#####/((*",
"&%&%&%#(#%####################%%%&&&%%%%%%%%%&&&&&&&&%%&%%%&%#%%%##%%%%%%%%%%#%%##%%##(((/((((#((***",
"%&&%%#%#(#%%#%%####&%%#####%%%%%%%%%##%%##%%&%%&&&&&&&&%%%&&&&%%%%%%%%&%%%%%#%#(#%&%%%%#((((((((/***",
"&%#%%&(##(%%#%&%#%#%%%##%%#%#%%%%%%%##%%%%#%###%%#%%%%&%%&&&&&&&&%&&&&%%%%%%%#%(#&&&%%%###((((/((***",
"%%%#%%%#(%#%%##%(##(##%%%%%%%%%%%%#######%%%%%%##%%#%%%%%%&%&&%%&&&&@@@&&&%%#%%%(#%&%&%%%#%%#(#((((*",
"#&&%((#(%#%#%&&%%###%%##%%%%#############%####%#%%%#%#%%###%%%%%&%%&%%%%%###%#(##&%%%%%#%%#%#(((#***",
"%%%#(((#%%%#&%&&#%%#%%%%%%%%#((#####%%##%%#######%%####%%%####%%%%%#######(/(#%%%##(((##(######*****"
]);
poob_detail_dims = [];
for (var i = 0; i < poob_detail.length; i++) {
poob_detail_dims.push([poob_detail[i][0].length, poob_detail[i].length]);
}
}
var init_lorem_ipsum = () => {
lorem_ipsum = "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed"
+ "do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim"
+ " ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut al"
+ "iquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit "
+ "in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Except"
+ "eur sint occaecat cupidatat non proident, sunt in culpa qui officia de"
+ "serunt mollit anim id est laborum. Curabitur pretium tincidunt lacus. "
+ "Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, "
+ "est eros bibendum elit, nec luctus magna felis sollicitudin mauris. In"
+ "teger in mauris eu nibh euismod gravida. Duis ac tellus et risus vulpu"
+ "tate vehicula. Donec lobortis risus a elit. Etiam tempor. Ut ullamcorp"
+ "er, ligula eu tempor congue, eros est euismod turpis, id tincidunt sap"
+ "ien risus a quam. Maecenas fermentum consequat mi. Donec fermentum. Pe"
+ "llentesque malesuada nulla a mi. Duis sapien sem, aliquet nec, commodo"
+ " eget, consequat quis, neque. Aliquam faucibus, elit ut dictum aliquet"
+ ", felis nisl adipiscing sapien, sed malesuada diam lacus eget erat. Cr"
+ "as mollis scelerisque nunc. Nullam arcu. Aliquam consequat. Curabitur "
+ "augue lorem, dapibus quis, laoreet et, pretium ac, nisi. Aenean magna "
+ "nisl, mollis quis, molestie eu, feugiat in, orci. In hac habitasse pla"
+ "tea dictumst.";
}
var init_browser_info = () => {
var info = {};
info["timeOpened"] = (new Date()).toString();
info["timeZone"] = ((new Date()).getTimezoneOffset()/60).toString();
info["javaEnabled"] = navigator.javaEnabled();
info["pageon"] = window.location.pathname
info["referrer"] = document.referrer;
info["previousSites"] = history.length;
info["browserName"] = navigator.appName;
info["browserEngine"] = navigator.product;
info["browserVersion1a"] = navigator.appVersion;
info["browserVersion1b"] = navigator.userAgent;
info["browserLanguage"] = navigator.language;
info["browserOnline"] = navigator.onLine;
info["browserPlatform"] = navigator.platform;
info["dataCookiesEnabled"] = navigator.cookieEnabled;
info["dataCookies2"] = decodeURIComponent(document.cookie.split(";"));
info["dataCookies1"] = document.cookie;
info["dataStorage"] = localStorage;
info["sizeScreenW"] = screen.width;
info["sizeScreenH"] = screen.height;
info["sizeDocW"] = document.width;
info["sizeInW"] = innerWidth;
info["sizeDocH"] = document.height;
info["sizeInH"] = innerHeight;
info["sizeAvailH"] = screen.availHeight;
info["sizeAvailW"] = screen.availWidth;
info["scrColorDepth"] = screen.colorDepth;
info["scrPixelDepth"] = screen.pixelDepth;
browser_info = JSON.stringify(info);
}
/*----------- Animations -----------*/
var this_weight = 0;
var animations = new ObjectSampler()
// do nothing
.put((this_animation) => {tooltip("null")}, 0)
// . to o random
.put((this_animation) => {
init_flat_index_list(rows, columns);
first_frame_tooltip("rndfill");
for (var n = 0; n < animation_speed_multiplier; n++) {
var index = Math.floor(Math.random() * flat_index_list.length);
setCharAtIndex(canvas, flat_index_list[index], "o");
flat_index_list.splice(index, 1);
if (flat_index_list.length <= 0) {
return;
}
}
frame_count++;
requestAnimationFrame(this_animation.bind(null, this_animation));
}, 1)
// random text wipe
.put((this_animation) => {
init_flat_index_list(rows, columns);
if (frame_count == 0) {
var char_level_generator = (num_chars, generator) => {
var text = "";
for (var i = 0; i < num_chars; i++) {
text += generator();
}
return text;
};
var radix_digit_generator =
(num_chars, radix) => char_level_generator(num_chars, () =>
Math.floor(Math.random() * radix).toString(radix));
//duplicates text and removes spaces at start of lines for aesthetics
var text_formatter = (input_text, num_chars) => {
var text = input_text;
while (text.length < num_chars + columns) {
text += " " + input_text;
}
for (var i = 0; i < rows; i++) {
var index = i * columns;
while (text[index] == " ") {
text = text.substr(0, index) + text.substr(index + 1);
}
}
text = text.substring(0, num_chars);
return text;
}
var textgen_funcs = new ObjectSampler()
.put([(num_chars) => $('html').html().replace(/\s/g, "").substring(0, num_chars), "html"])
.put([(num_chars) => radix_digit_generator(num_chars, 16), "rnd(hex)"], 1) // hex
.put([(num_chars) => radix_digit_generator(num_chars, 2), "rnd(bin)"], 1) // binary
.put([(num_chars) => radix_digit_generator(num_chars, 10), "rnd(dec)"], 0.5) // base 10
.put([(num_chars) => radix_digit_generator(num_chars, 8), "rnd(oct)"], 0.5) // octal
.put([(num_chars) => radix_digit_generator(num_chars, 36), "rnd(hexatridec)"], 0.5) // hexatridecimal
.put([(num_chars) => char_level_generator(num_chars, () => Math.floor(
Math.random() * 24 + 10).toString(36)), "rnd(letter)"], 1) // letters
.put([(num_chars) => { // lorem ipsum
init_lorem_ipsum();
return text_formatter(lorem_ipsum, num_chars);
}, "lorem"], 1.25)
.put([(num_chars) => {
init_browser_info();
return text_formatter(browser_info, num_chars);
}, "browser"], 1.25);
try { // pi (some browsers don't have bigint support)
textgen_funcs.put([(num_chars) => {
let i = BigInt(1);
let x = BigInt(3) * (BigInt(10) ** BigInt(num_chars+20)+BigInt(20));
let pi = x;
while (x > 0) {
x = x * i / ((i + BigInt(1)) * BigInt(4));
pi += x / (i + BigInt(2));
i += BigInt(2);
}
var text = (pi / (BigInt(10) ** BigInt(20))).toString();
text = "3." + text.substring(1);
text = text.substring(0, num_chars);
return text;
}, "pi"], 1);
} catch(e) {}
var textgen_sample = textgen_funcs.sample();
text_to_print = textgen_sample[0](columns*rows);
var textgen_description = textgen_sample[1];
tooltip("textgen<br>" + textgen_description);
}
setCharAtIndex(canvas, flat_index_list[0], text_to_print[0]);
flat_index_list.shift();
text_to_print = text_to_print.slice(1);
if (flat_index_list.length <= 0) {
return;
}
requestAnimationFrame(this_animation.bind(null, this_animation));
frame_count++;
}, 4)
// 10 print styles up or down
.put((this_animation) => {
var isupdown = constant_random_boolean;
if (frame_count == 0) {
var character_generators = new ObjectSampler()
.put([() => ['/', '\\'][Math.floor(Math.random()*2)], ".5\\/"], 2)
.put([() => ['/', '\\'][Math.floor(Math.random()+constant_random_values[0])], roundFloat(constant_random_values[0])+"\\/"], 2)
.put([() => ['\u2502', '\u2500'][Math.floor(Math.random()*2)], ".5\u2500\u2502"], 2)
.put([() => ['\u2502', '\u2500'][Math.floor(Math.random()+constant_random_values[0])], roundFloat(constant_random_values[0])+"\u2500\u2502"], 2)
.put([() => {flip ^= true; return ['/', '\\'][flip];}, "/\\/\\"], 1.5)
.put([() => ['/', '\\', ' ', ' '][Math.floor(Math.random()*4)], "/\\__"], 0.75)
.put([() => ['/', ' ', ' '][Math.floor(Math.random()*3)], "/__"], 1)
.put([() => ['\\', ' ', ' '][Math.floor(Math.random()*3)], "\\__"], 1)
.put([() => ['\u2588', ' '][Math.floor(Math.random()*2)], ".5\u2588_"], 0.25)
.put([() => '\\', "\\"], 0.5)
.put([() => '/', "/"], 0.5);
var character_generator_sample = character_generators.sample()
character_generator = character_generator_sample[0];
tooltip(`${character_generator_sample[1]}<br>${isupdown ? "up" : "down"}`);
}
var y = frame_count;
for (var x = 0; x < columns; x++) {
var index = get_canvas_index(columns, x, isupdown ? rows - y : y);
var random_slash = character_generator();
setCharAtIndex(canvas, index, random_slash);
}
if (frame_count >= rows) return;
frame_count++;
setTimeout(this_animation.bind(null, this_animation), 50);
}, 7.5)
// growing circle / entombing circle
.put((this_animation) => {
init_flat_index_list(rows, columns);
var isminmax = constant_random_boolean;
first_frame_tooltip("circ<br>" + (isminmax ? "out" : "in"));
var center_x = columns / 2;
var center_y = rows / 2;
for (var n = 0; n < animation_speed_multiplier; n++) {
var minmax_dist = 9999999 * (isminmax ? 1 : -1);
var minmax_dist_index = -1;
for (var i = 0; i < flat_index_list.length; i++) {
var coords = get_coords(columns, flat_index_list[i]);
var dist = Math.sqrt(Math.pow((center_x - coords[0]) * char_width, 2) + Math.pow((center_y - coords[1]) * char_height, 2))
if (isminmax && dist < minmax_dist || !isminmax && dist > minmax_dist) {
minmax_dist = dist;
minmax_dist_index = i;
}
}
setCharAtIndex(canvas, flat_index_list[minmax_dist_index], "o");
flat_index_list.splice(minmax_dist_index, 1);
if (flat_index_list.length <= 0) {
return;
}
}
frame_count++;
requestAnimationFrame(this_animation.bind(null, this_animation));
}, 1)
// entombing triangles
.put((this_animation) => {
init_flat_index_list(rows, columns);
var theta = constant_random_values[0] * Math.PI * 2;
var a = Math.cos(theta);
var b = Math.sin(theta);
var c = constant_random_values[0] * 100000;
first_frame_tooltip(`tris<br>a=${roundFloat(a)} b=${roundFloat(b)}`);
for (var n = 0; n < animation_speed_multiplier; n++) {
var min_dist = 9999999;
var max_dist = -9999999;
var min_dist_index = -1;
var max_dist_index = -1;
for (var i = 0; i < flat_index_list.length; i++) {
var coords = get_coords(columns, flat_index_list[i]);
var pixel_coords = [coords[0] * char_width, coords[1] * char_height];
var dist = Math.abs(a * pixel_coords[0] + b * pixel_coords[1] + c) / Math.sqrt(Math.pow(a, 2) + Math.pow(b, 2));
if (dist < min_dist) {
min_dist = dist;
min_dist_index = i;
}
if (dist > max_dist) {
max_dist = dist;
max_dist_index = i;
}
}
setCharAtIndex(canvas, flat_index_list[min_dist_index], "o");
setCharAtIndex(canvas, flat_index_list[max_dist_index], "o");
flat_index_list.splice(max_dist_index, 1);
if (max_dist_index != min_dist_index) {
if (max_dist_index < min_dist_index) {
flat_index_list.splice(min_dist_index - 1, 1);
} else {
flat_index_list.splice(min_dist_index, 1);
}
}
if (flat_index_list.length <= 0) {
return;
}
}
frame_count++;
requestAnimationFrame(this_animation.bind(null, this_animation));
}, 1)
// growing heart / entombing heart
.put((this_animation) => {
init_flat_index_list(rows, columns);
var isminmax = constant_random_boolean;
first_frame_tooltip(`<3<br>${isminmax ? 'out' : 'in'}`);
var center_x = columns / 2;
var center_y = rows / 4 - (frame_count * 0.0001);
var heart_multiplier = isminmax ? 2 : 45 * (animation_speed_multiplier + 2);
var pixels_changed = 0;
var tries = 0;
while (pixels_changed < animation_speed_multiplier * 10) {
frame_count++;
var minmax_dist = 9999999 * (isminmax ? 1 : -1);
var minmax_dist_index = -1;
for (var i = 0; i < flat_index_list.length; i++) {
var coords = get_coords(columns, flat_index_list[i]);
var dist = Math.sqrt(Math.pow((coords[0] - center_x) * char_width, 2) + Math.pow((coords[1] - center_y) * char_height, 2))
var theta = Math.atan2((center_y - coords[1]) * char_height, (center_x - coords[0]) * char_width);
var heart_radius =
heart_multiplier * (2 - 2 * Math.sin(theta) + Math.sin(theta)
* (Math.sqrt(Math.abs(Math.cos(theta))) / (Math.sin(theta) + 1.4)));
if (isminmax && dist < minmax_dist && dist < heart_radius || !isminmax && dist > minmax_dist && dist > heart_radius) {
minmax_dist = dist;
minmax_dist_index = i;
}
}
if (minmax_dist_index == -1) {
tries++;
if (tries > 1000) {
while (true) {
setCharAtIndex(canvas, flat_index_list[0], "o");
flat_index_list.shift();
if (flat_index_list.length <= 0) {
return;
}
}
}
heart_multiplier += 3 * (isminmax ? 1 : -1);
continue;
}
setCharAtIndex(canvas, flat_index_list[minmax_dist_index], "o");
pixels_changed++;
flat_index_list.splice(minmax_dist_index, 1);
if (flat_index_list.length <= 0) {
return;
}
}
requestAnimationFrame(this_animation.bind(null, this_animation));
}, 0.125)
// simplex growth
.put((this_animation) => {
var simplex_frequency = animation_speed_multiplier * -0.0001635 + 0.00237;
var simplex_amplitude = 1;
var octaves = Math.floor(constant_random_values[0] * Math.min(animation_speed_multiplier - 1, 3)) + 1;
first_frame_tooltip(`simplex growth<br>oct=${octaves}`)
init_simplex_noise();
init_flat_index_list(rows, columns, (index1, index2) => {
var coords1 = get_pixel_coords(columns, index1, char_width, char_height);
var coords2 = get_pixel_coords(columns, index2, char_width, char_height);
return get_simplex_noise_at(coords1, simplex_frequency, simplex_amplitude, octaves)
- get_simplex_noise_at(coords2, simplex_frequency, simplex_amplitude, octaves);
});
for (var n = 0; n < animation_speed_multiplier; n++) {
setCharAtIndex(canvas, flat_index_list[0], "o");
flat_index_list.shift();
if (flat_index_list.length <= 0) {
return;
}
}
requestAnimationFrame(this_animation.bind(null, this_animation));
frame_count++;
}, 1.25)
// mapgen
.put((this_animation) => {
var isisland = constant_random_boolean;
var frequency = animation_speed_multiplier * -0.0001635 + 0.00237;
var amplitude = 1;
var octaves = Math.floor(Math.min(animation_speed_multiplier - 1, 3)) + 1;
first_frame_tooltip(`mapgen<br>oct=${octaves} island=${isisland ? "T" : "F"}`)
var lacunarity = 2;
var gain = 0.5;
var pixels_changed = 0;
init_falloff_map(rows, columns, char_width, char_height);
init_simplex_noise();
init_mapgen_tiles();
var value_at = (coords) => {
var value = get_simplex_noise_at(coords, frequency, amplitude, octaves, lacunarity, gain);
if (isisland) {
value -= falloff_map(coords);
}
return value;
}
init_flat_index_list(rows, columns, (index1, index2) => {
var coords1 = get_pixel_coords(columns, index1, char_width, char_height);
var coords2 = get_pixel_coords(columns, index2, char_width, char_height);
return value_at(coords1)
- value_at(coords2);
});
if (!mapgen_probabilities) {
mapgen_probabilities = [];
var max_amplitude = amplitude * (Math.pow(gain, octaves) - 1) / (gain - 1);
mapgen_probabilities.push(max_amplitude);
mapgen_probabilities.push(-0.15);
for (var i = 0; i < flat_mapgen_tiles.length - 2; i++) {
mapgen_probabilities.push((i + 1) * amplitude / (flat_mapgen_tiles.length - 1));
}
mapgen_probabilities.sort();
for (var i = 0; i < flat_mapgen_tiles.length; i++) {
index_lists.push([]);
}
var current_noise;
var current_tile_index = 0;
for (var i = 0; i < flat_index_list.length; i++) {
current_coords = get_pixel_coords(columns, flat_index_list[i], char_width, char_height);
current_noise = value_at(current_coords);
for (var j = 0; j <= current_tile_index; j++) {
index_lists[j].push(flat_index_list[i]);
}
if (current_noise > mapgen_probabilities[current_tile_index]) {
current_tile_index = Math.min(current_tile_index + 1, flat_mapgen_tiles.length - 1);
}
}
}
var any_pixels = false;