diff --git a/light_manager.py b/light_manager.py
index a1e2ccc..ecdf29f 100644
--- a/light_manager.py
+++ b/light_manager.py
@@ -4,7 +4,7 @@ import board
 import logging
 
 def defaultPattern(n, t):
-    return (0, 0, 255)
+    return (n % 255, 0, t % 255)
 
 class LightStrip:
   def __init__(self, data_pin = board.D18, string_length = 300, brightness = 1, pixel_order = neopixel.GRB, max_changes = 5):
@@ -13,20 +13,31 @@ class LightStrip:
         self.np = neopixel.NeoPixel(self.data_pin, string_length, brightness = brightness, auto_write=True, pixel_order = pixel_order)
         self.pattern = defaultPattern
         self.cur_tick = 0
+        self.cur_index = 0
         self.max_changes = max_changes
+        self.cur_pattern = []
 
   def set_light_level(self, level):
     self.np.brightness = level
   def pattern(self, pattern_callback):
     self.pattern = pattern_callback
+
+  def get_next_pattern_tick(self):
+    n = self.np.n
+    t = self.cur_tick
+    for i in range(n):
+      self.cur_pattern[i] = self.pattern(i, t)
+    self.cur_tick = t + 1
   
   def tick(self):
     np = self.np
     t = self.cur_tick
     n = np.n
     changes = 0
-    for i in range(n):
-      col = self.pattern(i, t)
+    ind = self.cur_index
+    for i in range(ind, n):
+      col = self.cur_pattern[i]
+      self.cur_index = i
       logging.debug("TEST VALUES: np {} col {} same {}".format(np[i], col, tuple(np[i]) != col))
       if tuple(np[i]) != col:
         changes = changes + 1
@@ -34,4 +45,6 @@ class LightStrip:
         logging.debug("CHANGE COLOR OF PIXEL {} TO {} ON TICK {}".format(i, col, t))
         if changes >= self.max_changes:
           break;
-    self.cur_tick = t + 1
\ No newline at end of file
+    if self.cur_index >= (n-1):
+      self.get_next_pattern_tick()
+      self.cur_index = 0
\ No newline at end of file