Merge pull request #10 from The-Spirit/rotate-left-and-right

Rotate left and right

ws2812b.py

@@ -66,7 +66,20 @@ class ws2812b:
         green = round(green * (self.brightness() / 255))
 
         self.pixels[pixel_num] = blue | red << 8 | green << 16
-        
+    
+    # rotate x pixels to the left
+    def rotate_left(self, num_of_pixels):
+        if num_of_pixels == None:
+            num_of_pixels = 1
+        self.pixels = self.pixels[num_of_pixels:] + self.pixels[:num_of_pixels]
+
+    # rotate x pixels to the right
+    def rotate_right(self, num_of_pixels):
+        if num_of_pixels == None:
+            num_of_pixels = 1
+        num_of_pixels = -1 * num_of_pixels
+        self.pixels = self.pixels[num_of_pixels:] + self.pixels[:num_of_pixels]
+
     def show(self):
         for i in range(self.num_leds):
             self.sm.put(self.pixels[i],8)