Initial RGB with test animation running automatically

kmk/rgb.py

@@ -0,0 +1,58 @@
+OFF = (0, 0, 0)
+RED = (255, 0, 0)
+YELLOW = (255, 150, 0)
+GREEN = (0, 255, 0)
+CYAN = (0, 255, 255)
+BLUE = (0, 0, 255, 0)
+PURPLE = (180, 0, 255)
+
+
+def wheel(pos):
+    # Input a value 0 to 255 to get a color value.
+    # The colours are a transition r - g - b - back to r.
+    if pos < 0 or pos > 255:
+        return (0, 0, 0)
+    if pos < 85:
+        return (255 - pos * 3, pos * 3, 0)
+    if pos < 170:
+        pos -= 85
+        return (0, 255 - pos * 3, pos * 3)
+    pos -= 170
+    return (pos * 3, 0, 255 - pos * 3)
+
+
+def color_chase(pixels, num_pixels, color, color2=OFF, speed=100, animation_state=0):
+    if animation_state not in range(num_pixels):
+        color = color2
+        pixels[int(animation_state - num_pixels)] = color
+
+    else:
+        pixels[animation_state] = color
+
+    pixels.show()
+    animation_state += 1
+
+    if animation_state >= num_pixels * 2:
+        animation_state = 0
+
+    return animation_state, 0
+
+
+def rainbow_cycle(pixels, num_pixels, speed=100, animation_state=0, color_state=0):
+    color_state += 1
+    if color_state in range(255):
+        print(animation_state)
+        animation_state +=1
+        if animation_state in range(num_pixels):
+            rc_index = (animation_state * 256 // num_pixels) + animation_state
+            print(pixels[animation_state])
+            print(wheel(rc_index & 255))
+            pixels[animation_state] = wheel(rc_index & 255)
+        else:
+            pixels.show()
+            return 0, color_state
+    else:
+        return animation_state, 0
+
+
+