add generated christmas lights (#9)

Reviewed-on: #9

pyleds/program/promise/ChristmasLights.py

@@ -6,33 +6,33 @@ def name():
     return 'Christmas Lights'
 
 class ChristmasLights(Program):
+    def run(self, args: [] = None):
+        # Configuration
+        wait_ms = 0  # Speed of the animation
 
-    def christmas_pattern(self, offset, segment_length=2):
+        # Define classic festive colors
         RED = Color(255, 0, 0)
         GREEN = Color(0, 255, 0)
-        WARM_WHITE = Color(200, 180, 60)
+        WARM_WHITE = Color(200, 180, 60) # A golden-ish warm white
+
         colors = [RED, GREEN, WARM_WHITE]
 
-        totalLength = self._lm.count_pixels()
+        # This determines how many pixels of the same color are next to each other
+        group_size = 2
 
-        for i in range(totalLength):
-            color_index = ((i + offset) // segment_length) % len(colors)
-            self._lm.set_pixel_color(i, colors[color_index])
+        offset = 0
+        while self.get_loop().status():
+            num_pixels = self._lm.count_pixels()
 
-        self._lm.show()
-        return len(colors) * segment_length
+            for i in range(num_pixels):
+                # Calculate which color index to use based on pixel position and current offset
+                # This creates the "moving" effect
+                color_index = ((i + offset) // group_size) % len(colors)
+                self._lm.set_pixel_color(i, colors[color_index])
 
-    def run(self, args=None):
-        # Fsr the application in the run file is different from
-        # the configuration in the Program and ProgramLoading files
-        loop = args.get("loop", False) if args else False
+            self._lm.show()
 
-        offset = 0
-        segment_length = 2
-        while self.get_loop().status():
+            # Increment offset to move the lights
+            offset = (offset + 1) % (len(colors) * group_size)
             self._lm.get_tempo().wait()
-            cycle_limit = self.christmas_pattern(offset, segment_length)
-            offset = (offset + 1) % cycle_limit
-
-            if not loop:
-                break
+            time.sleep(wait_ms / 1000.0)