func makebox(s tcell.Screen) { w, h := s.Size() if w == 0 || h == 0 { return } glyphs := []rune{'@', '#', '&', '*', '=', '%', 'Z', 'A'} lx := rand.Int() % w ly := rand.Int() % h lw := rand.Int() % (w - lx) lh := rand.Int() % (h - ly) st := tcell.StyleDefault gl := ' ' if s.Colors() > 256 { rgb := tcell.NewHexColor(int32(rand.Int() & 0xffffff)) st = st.Background(rgb) } else if s.Colors() > 1 { st = st.Background(tcell.Color(rand.Int() % s.Colors())) } else { st = st.Reverse(rand.Int()%2 == 0) gl = glyphs[rand.Int()%len(glyphs)] } for row := 0; row < lh; row++ { for col := 0; col < lw; col++ { s.SetCell(lx+col, ly+row, st, gl) } } s.Show() }