diff options
Diffstat (limited to 'taturtle.py')
| -rw-r--r-- | taturtle.py | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/taturtle.py b/taturtle.py index 4eaa72f..23344e2 100644 --- a/taturtle.py +++ b/taturtle.py @@ -122,14 +122,17 @@ class Turtle: self.colors = colors[:] self.shapes = generate_turtle_pixbufs(self.colors) - self.spr = Sprite(turtles.sprite_list, 0, 0, self.shapes[0]) + if turtles.sprite_list is not None: + self.spr = Sprite(turtles.sprite_list, 0, 0, self.shapes[0]) + else: + self.spr = None turtles.add_to_dict(key, self) def set_heading(self, heading): """ Set the turtle heading (and shape: one per 10 degrees) """ self.heading = heading i = (int(self.heading+5)%360)/10 - if self.hidden is False: + if self.hidden is False and self.spr is not None: try: self.spr.set_shape(self.shapes[i]) except IndexError: @@ -158,20 +161,22 @@ class Turtle: def hide(self): """ Hide the turtle. """ - self.spr.hide() + if self.spr is not None: + self.spr.hide() self.hidden = True def show(self): """ Show the turtle. """ - self.spr.set_layer(TURTLE_LAYER) - self.hidden = False + if self.spr is not None: + self.spr.set_layer(TURTLE_LAYER) + self.hidden = False self.move((self.x, self.y)) self.set_heading(self.heading) def move(self, pos): """ Move the turtle. """ self.x, self.y = pos[0], pos[1] - if self.hidden is False: + if self.hidden is False and self.spr is not None: self.spr.move(pos) return(self.x, self.y) |