Merge pull request #79 from tmontes/turtle-forward-tracks-angle

Turtle forward movements default to tracking angle changes.

Author: tmontes

src/aturtle/turtle.py

@@ -92,7 +92,7 @@ async def _async_draw_line(self, _progress, anchor):
             self._lines.append(self._line_id)
 
 
-    async def async_forward(self, delta, *, down=None, track_angle=None,
+    async def async_forward(self, delta, *, down=None, track_angle=True,
                             speed=None, easing=None, fps=None, update=None):
         """
         Animated move of the Turtle forward by `delta` in the direction set by

tests/test_turtle.py

@@ -225,7 +225,7 @@ def test_async_forward_awaits_sprite_async_forward(self):
         self.sprite.async_forward.assert_awaited_with(
             42,
             callback=t._async_draw_line,
-            track_angle=None,
+            track_angle=True,
             speed=None,
             easing=None,
             fps=None,
@@ -281,7 +281,7 @@ def test_async_forward_down_draw_line_vs_init_down(self):
                 self.sprite.async_forward.assert_awaited_with(
                     42,
                     callback=expected_cb,
-                    track_angle=None,
+                    track_angle=True,
                     speed=None,
                     easing=None,
                     fps=None,
@@ -550,7 +550,7 @@ def test_sync_forward_calls_sprite_sync_forward(self):
         self.sprite.sync_forward.assert_called_with(
             42,
             callback=t._sync_draw_line,
-            track_angle=None,
+            track_angle=True,
             speed=None,
             easing=None,
             fps=None,
@@ -604,7 +604,7 @@ def test_sync_forward_down_draw_line_vs_init_down(self):
                 self.sprite.sync_forward.assert_called_with(
                     42,
                     callback=expected_cb,
-                    track_angle=None,
+                    track_angle=True,
                     speed=None,
                     easing=None,
                     fps=None,