Project 5 – Wallpaper

//Iris Yip
//15104 Section D

var density, shapes, c, cindex, newc,
    colors = ["#1aa6b7", "#ff414d", "#f56a79", "#ff9a76", "#d9ecf2"]; 

var setvariations = [],
    setsize = [],
    setquad = [],
    setxoffset = [],
    setyoffset = [],
    setcolor1 = [],
    setcolor2 = [];


function setup() {
    createCanvas(600,600);
    angleMode(DEGREES);

};

function draw() {

    setvariations = [],
        setsize = [],
        setquad = [],
        setxoffset = [],
        setyoffset = [],
        setcolor1 = [],
        setcolor2 = [];

    background(255, 100);
    // set pattern repeat density
    density = int(random(2, 8));
    shapes = int(random(5, 10));


    for (let i = 0; i < shapes; i++) {

        setvariations.push(int(random(1, 6)));
        setxoffset.push(random(0, width / density));
        setyoffset.push(random(0, width / density));
        setsize.push(i * 0.2 + 1);
        setquad.push(int(random(1, 8)));

        colors = ["#1aa6b7", "#ff414d", "#f56a79", "#ff9a76", "#d9ecf2"];
        c = random(colors);
        setcolor1.push(color(c));
        cindex = colors.indexOf(c);
        colors.splice(cindex, 1);
        setcolor2.push(color(random(colors)));
    }

    for (let i = -1; i <= density * 2 + 1; i++) {
        for (let j = -1; j <= density * (width/height) * 2 + 1; j++) {
            let factor = width / density,
                x = i * factor,
                y = j * factor;

            for (let n = 0; n < shapes; n++) {
                shape(factor, x + setxoffset[n], y + setyoffset[n], setvariations[n], setsize[n], setquad[n], setcolor1[n], setcolor2[n]);
            }
        }
    }

    frameRate(0);
}

function shape(factor, x, y, variation, size, quad, color1, color2) {

    for (var i = factor; i > 0; i--) {

        let fillcolor = lerpColor(color(color1), color(color2), i / factor);
        noStroke();
        fill(fillcolor);

        push();
        translate(x, y)
        rotate(quad * 45);

        if (variation == 1) {
            arc(0, 0, i / size, i / size, 0, size * 45);
        };

        if (variation == 2) {
            triangle(0, 0, i / size, 0, 0, i / size);
        };

        if (variation == 3) {
            square(0, 0, i / size, i / (size * 5), i / (size * 5), i / (size * 5), i / (size * 5));
        }

        if (variation == 4) {
            ellipse(0, 0, i / size, i / size);
        }

        if (variation == 5) {
            rect(0, 0, i / size, i / size / 2);
        }


        pop();

    };
}