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import {sin, cos, sqrt, pi, tau} from "../math.js";
const ka = 0.89081309152928522810;
const kr = sin(pi / 10) / sin(7 * pi / 10);
const kx = sin(tau / 10) * kr;
const ky = -cos(tau / 10) * kr;
export default {
draw(context, size) {
const r = sqrt(size * ka);
const x = kx * r;
const y = ky * r;
context.moveTo(0, -r);
context.lineTo(x, y);
for (let i = 1; i < 5; ++i) {
const a = tau * i / 5;
const c = cos(a);
const s = sin(a);
context.lineTo(s * r, -c * r);
context.lineTo(c * x - s * y, s * x + c * y);
}
context.closePath();
}
};