randomization for manager

livingroom.py

 
 camp_pink = (251, 72, 196)
 camp_green = (63, 255, 33)
+pause = 2.0
 
 from splash import SplashScreen
 from scroll import ScrollText
 from manager import Manager
 from tetris import Tetris
 from breakout import Breakout
-from weather import WeatherScreen
 from config import Config
 import util
 
 splash.draw()
 t.loop_end()
 
-m = Manager(t, i)
+m = Manager(t, i, 2, True)
 
-m.add(ImageScreen(t, "cann.png"))
-m.add(Solid(t, 1.0))
-
-m.add(WeatherScreen(t, i, Config.weather_latlon))
-m.add(Solid(t, 1.0))
+if not util.isPi():
+    # TODO weather does not run on Pi yet unfortunately :(
+    from weather import WeatherScreen
+    m.add(WeatherScreen(t, i, Config.weather_latlon))
+    m.add(Solid(t, pause))
 
 m.add(GameOfLife(t, 20, (0, 255, 0), (0, 0, 0), None, 2.0))
-m.add(Solid(t, 1.0))
+m.add(Solid(t, pause))
+
+m.add(ImageScreen(t, "32_earth.gif", 0.2, 2))
+m.add(Solid(t, pause))
+
+m.add(ImageScreen(t, "cann.png", 0.2, 1, 10.0))
+m.add(Solid(t, pause))
+
+m.add(ImageScreen(t, "cann2.png", 0.2, 1, 10.0))
+m.add(Solid(t, pause))
+
+m.add(ImageScreen(t, "64_cloud.gif", 0.2, 1, 5.0, (0, 0, 0)))
+m.add(Solid(t, pause))
 
-m.add(ImageScreen(t, "cann2.png"))
-m.add(Solid(t, 1.0))
+m.add(ImageScreen(t, "64_sephiroth.gif", 0.2, 4, 5.0, (0, 0, 0)))
+m.add(Solid(t, pause))
 
-m.add(ImageScreen(t, "earth.gif"))
-m.add(Solid(t, 1.0))
+m.add(ImageScreen(t, "64_nlogospin.gif", 0.2, 2))
+m.add(Solid(t, pause))
 
-#m.add(Breakout(t, i))
-#m.add(Solid(t, 1.0))
+m.add(Breakout(t, i))
+m.add(Solid(t, pause))
 
-#m.add(Tetris(t, i,))
-#m.add(Solid(t, 1.0))
+m.add(Tetris(t, i,))
+m.add(Solid(t, pause))
 
-#m.add(Snake(t, i, camp_pink, camp_green))
-#m.add(Solid(t, 1.0))
+m.add(Snake(t, i, camp_pink, camp_green))
+m.add(Solid(t, pause))
 
 m.restart()
 util.loop(t, m.draw)

manager.py

 # ----------------------------------------------------------------------------
 
 import time
+import random
 
 class Manager:
-    def __init__(self, g, i = None, ss = 2):
+    def __init__(self, g, i = None, ss = 2, randomize = False):
         self.gui = g
         self.input = i
         self.step_size = ss
+        self.randomize = randomize
         self.screens = []
+
+        if self.randomize:
+            random.seed()
+
         self.restart()
 
     def restart(self):
-        self.index = 0
+        if self.randomize and (len(self.screens) > 0):
+            self.index = int(random.randrange(0, len(self.screens) / self.step_size) * self.step_size)
+        else:
+            self.index = 0
+
         self.done = False
         self.lastTime = time.time()
         self.old_keys = {
         self.lastTime = time.time()
 
         if update_flag:
-            # go through all for normal operation
-            self.index = (self.index + i) % len(self.screens)
+            if self.randomize:
+                if (self.index % self.step_size) == (self.step_size - 1):
+                    # end of "segment", now go to random next segment
+                    new_index = self.index
+                    while (new_index == self.index) and (len(self.screens) > self.step_size):
+                        new_index = int(random.randrange(0, len(self.screens) / self.step_size) * self.step_size)
+                    self.index = new_index
+                else:
+                    # still in "segment", so just normal iteration
+                    self.index = (self.index + i) % len(self.screens)
+            else:
+                # go through all for normal operation
+                self.index = (self.index + i) % len(self.screens)
         else:
             # use step_size for button presses
             self.index = int((int(self.index / self.step_size) + i) * self.step_size) % len(self.screens)