elif keys[pygame.K_ESCAPE]:
screen.fill(BG)
pygame.display.flip()
bspline.clear()
nurbs.clear()
ctrl_x = []
ctrl_y = []
spline = True
got_c1 = False
time.sleep(0.3)
if spline and len(ctrl_x) == 9:
if bspline.update(ctrl_x, ctrl_y):
spline = False
screen.fill(BG)
bspline.draw(iterative=True)
ctrl_x = []
ctrl_y = []
else:
print('erro Bspline', len(ctrl_x))
elif (not spline) and len(ctrl_x) == 8:
if nurbs.update(ctrl_x, ctrl_y, weights):
spline = True
nurbs.draw(iterative=True)
else:
print('erro NURBS', len(ctrl_x))
if spline:
m1, m2, m3 = pygame.mouse.get_pressed()
if m1 == 1:
