// ==UserScript==
// @name         Rainbow border for flowgame.io
// @namespace    http://tampermonkey.net/
// @version      3
// @description  u can change the speed here (function() {var speed = 5; have fun with the script flow players!
// @author       Sakuro
// @match        *://*.flowgame.io/
// @match        *://*.flowy.gg/*
// @license MIT
// @grant        document-start
// ==/UserScript==
if (window.flowExtensions) {
window.flowExtensions.register('https://greasyfork.org/en/scripts/442172-rainbow-border');
}
var rainbowMode = true;
var borderColor = '#FFFFFF';
//  --- --- --- --- --- --- ---
(function() {
var speed = 5;
function hslToHex(h, s, l) {
h /= 360;
s /= 100;
l /= 100;
let r, g, b;
if (s === 0) {
r = g = b = l;
} else {
const hue2rgb = (p, q, t) => {
if (t < 0) t += 1;
if (t > 1) t -= 1;
if (t < 1 / 6) return p + (q - p) * 6 * t;
if (t < 1 / 2) return q;
if (t < 2 / 3) return p + (q - p) * (2 / 3 - t) * 6;
return p;
};
const q = l < 0.5 ? l * (1 + s) : l + s - l * s;
const p = 2 * l - q;
r = hue2rgb(p, q, h + 1 / 3);
g = hue2rgb(p, q, h);
b = hue2rgb(p, q, h - 1 / 3);
}
const toHex = x => {
const hex = Math.round(x * 255).toString(16);
return hex.length === 1 ? '0' + hex : hex;
};
return `#${toHex(r)}${toHex(g)}${toHex(b)}`;
}
var stroke = CanvasRenderingContext2D.prototype.stroke;
CanvasRenderingContext2D.prototype.stroke = function(){
if(this.lineWidth < 0 || this.strokeStyle == "#ffffff" || this.strokeStyle == "#333333" || this.strokeStyle == "#7f7f7f" || this.strokeStyle.slice(5,7) != this.strokeStyle.slice(3,5)) return stroke.apply(this, arguments);
this.strokeStyle = rainbowMode ? hslToHex(Math.floor(Date.now() / speed) % 360, 100, 50) : borderColor;
return stroke.apply(this, arguments);
}
})();