module main import gg import gx fn main() { mut context := gg.new_context( width: 300 height: 300 window_title: 'Circles' frame_fn: frame ) context.run() } fn frame(mut ctx gg.Context) { ctx.begin() ctx.draw_circle_empty(150, 150, 80, gx.blue) ctx.draw_circle_filled(150, 150, 40, gx.yellow) ctx.draw_circle_line(150, 150, 80, 6, gx.red) ctx.draw_circle_line(150, 150, 120, 6, gx.green) ctx.draw_circle_line(150, 150, 150, 8, gx.white) ctx.end() }