OpenJSCad spiral

spiral.js

//openjscad.org
// Anna and Charlie's spral

function main () {
	const twist = 9;
	var w = [ ];
    for(var i = 0; i < 40; i++) {
        w.push(
            color('lightblue', cube({
                size: [30, 6, 2]
            }).translate([0, -3, i*2])
            .rotateZ(i * twist))
        );

        w.push(
            color('lightblue', cube({
                size: [30, 6, 2]
            }).translate([-30, -3, i*2])
            .rotateZ(i * twist))
        );

        w.push(
            color('blue', cube({
                size:[30, 6, 2]
            }).translate([-15, 3, i*2])
            .rotateZ(i * twist))
        );

        w.push(
            color('blue', cube({
                size: [30, 6, 2]
            }).translate([-15, -9, i*2])
            .rotateZ(i * twist))
        );
    }
    return w;
}