Mix Youtube videos like a true DJ!
https://dj.tflcl.xyz
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144 lines
3.3 KiB
144 lines
3.3 KiB
2 years ago
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let sketch = function(p) {
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let bgCol = hexToRgb('#222233');
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let starCol = [hexToRgb('#ffcdff'), hexToRgb('#804442'), hexToRgb('#ffff7d')]
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let starDensity = 0.0005; //0.0005 is safe. Above 0.01 is absurd
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let currentWidth;
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let currentHeight;
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let nbStars;
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let stars;
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let bg;
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let time = 0;
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p.setup = function(){
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p.frameRate(24);
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currentWidth = p.windowWidth;
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currentHeight = p.windowHeight;
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p.createCanvas(currentWidth, currentHeight);
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bgInit();
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// p.noLoop();
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}
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p.draw = function(){
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p.background(bgCol);
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p.image(bg, 0, 0);
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// p.circle(30, time*1.5, 10);
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// for (let i=0; i<nbStars; i++) {
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// let x = p.random(p.windowWidth);
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// let y = p.random(p.windowHeight);
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// let d = 1 + p.random(2);
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// let c = p.random(starCol);
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// let a = p.random(230);
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// c.setAlpha(a);
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// // console.log(c);
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//
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// p.stroke(c);
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// // p.point(x, y);
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// p.circle(x, y, d);
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// }
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time += 1;
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} //End of draw()
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class Stars {
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//Inspired by https://www.youtube.com/watch?v=NJjEGoqTn1Y
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constructor(nb) {
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this.nb = nb;
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this.x = [];
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this.y = [];
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this.color = [];
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this.size = [];
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}
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make() {
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for (let i = 0; i < this.nb; i++) {
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this.x[i] = p.random(0,p.width);
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this.y[i] = p.random(0,p.height);
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this.color[i] = p.random(starCol);
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this.color[i].setAlpha(p.random(100,230));
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this.size[i] = 1 + p.random(2);
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}
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}
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draw() {
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for (let i = 0; i < this.nb; i++) {
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bg.strokeWeight(this.size[i]);
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bg.stroke(this.color[i]);
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bg.point(this.x[i], this.y[i]);
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}
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}
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}
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p.windowResized = function() {
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//Redraw only if new size if bigger than previously
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let newWidth = p.windowWidth;
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let newHeight = p.windowHeight;
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if (newWidth > currentWidth || newHeight > currentHeight) {
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currentWidth = newWidth;
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currentHeight = newHeight;
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p.resizeCanvas(currentWidth, currentHeight);
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bgInit();
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}
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}
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function bgInit() {
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nbStars = calcNumberOfStars();
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bg = p.createGraphics(p.width, p.height);
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bg.background(bgCol);
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setGradient(0, 0, p.width, p.height, bgCol, starCol[1]);
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stars = new Stars(nbStars);
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stars.make();
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stars.draw();
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}
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function calcNumberOfStars() {
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//Helps to get a consistent number of starts regardless the window size
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if (starDensity > 0.01) {
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console.log('starDensity is too high! going back to the maximum (0.01) in order to prevent too much CPU load when starting the patch');
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starDensity = 0.01;
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}
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let nb = p.round(starDensity * currentWidth * currentHeight)
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console.log('nbStars: ' + nb);
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return nb;
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}
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function hexToRgb(hex) {
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hex = hex.replace('#', '');
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var bigint = parseInt(hex, 16);
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var r = (bigint >> 16) & 255;
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var g = (bigint >> 8) & 255;
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var b = bigint & 255;
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return p.color(r, g, b);
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}
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function setGradient(x, y, w, h, c1, c2) {
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bg.noFill();
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// Top to bottom gradient
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for (let i = y; i <= y + h; i++) {
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let inter = p.pow(p.map(i, y, y + h, 0, 1),6);
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let c = bg.lerpColor(c1, c2, inter);
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bg.stroke(c);
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bg.line(x, i, x + w, i);
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}
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}
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};
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new p5(sketch, 'bg');
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