Merge #257

257: rotate_image now clock-wise r=pathunstrom a=ZackOConnor

Fixes target and animated_sprite examples for the new rotation direction
Fixes #251 

Co-authored-by: zoconnor <zoconnor@p-sl-1805-d6gv>

examples/animated_sprite.py

@@ -16,7 +16,7 @@ def on_mouse_motion(self, event: events.MouseMotion, signal):
     def on_update(self, event: events.Update, signal):
         intent_vector = self.target - self.position
         self.position += intent_vector.scale(self.speed * event.time_delta)
-        self.rotation = math.degrees(math.atan2(intent_vector.y, intent_vector.x)) + 90
+        self.rotation = math.degrees(math.atan2(intent_vector.y, intent_vector.x)) - 90
 
 
 def setup(scene):

examples/targets.py

@@ -16,6 +16,7 @@ class Player(MoverMixin, ppb.BaseSprite):
     # and adding it on press and subtracting it on release.
     left_vector = Vector(-1, 0)
     right_vector = Vector(1, 0)
+    _rotation = 180
 
     def on_key_pressed(self, event, signal):
         if event.key in (keycodes.A, keycodes.Left):
@@ -44,6 +45,7 @@ def _fire_bullet(self, scene):
 
 class Bullet(MoverMixin, ppb.BaseSprite):
     velocity = Vector(0, 2)
+    _rotation = 180
 
     def on_update(self, update, signal):
         super().on_update(update, signal)  # Execute movement

ppb/systems/__init__.py

@@ -127,8 +127,8 @@ def resize_image(self, image, game_unit_size):
         return resized_image
 
     def rotate_image(self, image, rotation):
-        """Rotates image counter-clockwise {rotation} degrees."""
-        return pygame.transform.rotate(image, -rotation)
+        """Rotates image clockwise {rotation} degrees."""
+        return pygame.transform.rotate(image, rotation)
 
     def target_resolution(self, width, height, game_unit_size):
         values = [width, height]