message: fix pygame viewer
diff: @@ -36,7 +36,7 @@ class PygameViewer(BaseViewer):
  pg.draw.circle(self.screen, self.getColor(color),
  self.pointToPG(point2d), 1, 0)
  - def drawLine2d(self, line2d, color='blue', alpha=1.0, dashed):
  + def drawLine2d(self, line2d, color='blue', alpha=1.0, dashed=False):
  # TODO: enable dashed line
  if self.screen is None:
  return
  