md`# p5.js`
// https://p5js.org/examples/arrays-array.html
p5(sketch => {
let system;
let sinwave = [];
const c = sketch.color('#DC3F74');
let height = 300
sketch.setup = function() {
sketch.createCanvas(720, height);
for (let i = 0; i < width; i++) {
let amount = sketch.map(i, 0, width, 0, Math.PI);
sinwave[i] = Math.abs(Math.sin(amount));
}
sketch.background(255);
sketch.noLoop();
};
sketch.draw = function() {
sketch.stroke(c);
let y1 = 0;
sketch.stroke(155, 220, 0);
let y2 = height / 3;
for (let i = 0; i < width; i += 3) {
sketch.stroke(sinwave[i] * 255);
sketch.line(i, y1, i, y2);
}
y1 = y2;
y2 = y1 + y1;
for (let i = 0; i < width; i += 3) {
sketch.stroke((sinwave[i] * 255, 20, 60) / 2);
sketch.line(i, y1, i, y2);
}
y1 = y2;
y2 = height;
for (let i = 0; i < width; i += 3) {
sketch.stroke(255 - sinwave[i] * 255);
sketch.line(i, y1, i, y2);
}}
})
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