--- /dev/null
+#!/usr/bin/env python
+
+import string, time, os
+from subprocess import Popen, PIPE
+from random import random
+from MessageKeeper import MessageKeeper
+
+orderings = None
+
+IDLER_TEXT_SPEED=1.8
+
+class Idler:
+ def __init__(self, v):
+ self.v = v
+
+ def next(self):
+ """Displays next stage of the idler. Returns time to the next step"""
+ return 1
+
+ def reset(self):
+ """Resets the idler to a known intial state"""
+ pass
+
+ def finished(self):
+ """Returns True if the idler is considered finished"""
+ return False
+
+ def affinity(self):
+ """How much we want this idler to be the next one chosen"""
+ return 1
+
+class GreetingIdler(Idler):
+ def __init__(self, v, secs_to_greeting = None):
+ self.v = v
+ self.secs_to_greeting = secs_to_greeting
+ self.message_displayed = False
+
+ def next(self):
+ if not self.secs_to_greeting is None:
+ x = self.secs_to_greeting
+ self.secs_to_greeting = None
+ return x
+
+ self.v.display('UCC SNACKS')
+ self.message_displayed = True
+ return 5
+
+ def reset(self):
+ self.message_displayed = False
+ self.secs_to_greeting = None
+
+ def finished(self):
+ return self.message_displayed
+
+ def affinity(self):
+ return 0
+
+class TrainIdler(Idler):
+ def __init__(self, v):
+ self.idle_state = 0
+ self.v = v
+
+ def put_shark(self, s, l):
+ if self.s[l] == ' ':
+ self.s[l] = s
+ elif self.s[l] == 'X':
+ self.s[l] = '*'
+ else:
+ self.s[l] = 'X'
+
+ def next(self):
+ # does the next stage of a dance
+ self.s = [' ']*10
+ shark1 = self.idle_state % 18
+ if shark1 < 9:
+ self.put_shark('^', shark1)
+ else:
+ self.put_shark('^', 18-shark1)
+
+ shark2 = ((self.idle_state+4) % 36)/2
+ if shark2 < 9:
+ self.put_shark('<', shark2)
+ else:
+ self.put_shark('<', 18-shark2)
+
+ shark3 = ((self.idle_state+7) % 54)/3
+ if shark3 < 9:
+ self.put_shark('>', 9-shark3)
+ else:
+ self.put_shark('>', 9-(18-shark3))
+
+ train1 = ((self.idle_state%(18*36)))
+ train1_start = 122
+ if train1 > train1_start and train1 < train1_start+(10*2):
+ for i in range(5):
+ ptr = i+train1-train1_start-5
+ if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
+
+ train2 = ((self.idle_state%(18*36)))
+ train2_start = 400
+ if train2 > train2_start and train2 < train2_start+(10*2):
+ for i in range(5):
+ ptr = i+train2-train2_start-5
+ if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
+
+ train3 = ((self.idle_state%(18*36)))
+ train3_start = 230
+ if train3 > train3_start and train3 < train3_start+(10*2):
+ for i in range(10):
+ ptr = i+train3-train3_start-10
+ if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
+
+ self.v.display(string.join(self.s, ''))
+ self.idle_state += 1
+ self.idle_state %= 18*36*54
+
+ def reset(self):
+ self.idle_state = 0
+
+class OrderMaker:
+ def __init__(self, n=8):
+ self.n = n
+ self.make_factorials(n)
+
+ def make_factorials(self, n):
+ self.factorial = []
+ a = 1
+ for i in range(1,n+1):
+ self.factorial.append(a)
+ a *= i
+
+ def order(self, index):
+ used = []
+ for i in range(0,self.n):
+ used.append(i)
+ i = self.n-1
+ j = 0
+ res = []
+ while i >= 0:
+ a = index/self.factorial[i]
+ index %= self.factorial[i]
+ res.append(a+1)
+ i -= 1
+ j += 1
+ for i in range(0,self.n):
+ tmp = used[res[i]-1]
+ for j in range(res[i],self.n):
+ used[j-1] = used[j]
+ res[i] = tmp
+ return res
+
+ def __getitem__(self, i):
+ return self.order(i)
+
+class GrayIdler(Idler):
+ def __init__(self, v, one=None, zero=None, reorder=0):
+ self.bits = 8
+ self.size = 1 << self.bits
+ self.i = 0
+ self.grayCode = 0
+ self.v = v
+ self.one = one
+ self.zero = zero
+ self.reorder = reorder
+ global orderings
+ if not orderings:
+ orderings = OrderMaker()
+
+ def next(self):
+ output = self.do_next_state()
+ # does the next stage of a dance
+ if self.zero:
+ output = string.replace(output, "0", self.zero)
+ if self.one:
+ output = string.replace(output, "1", self.one)
+ if self.reorder:
+ global orderings
+ newoutput = ""
+ for i in range(0,8):
+ newoutput += output[orderings[self.reorder][i]]
+ output = newoutput
+ self.v.display(" %8.8s " % (output))
+ self.i = (self.i + 1) % self.size
+
+ def do_next_state(self):
+ self.grayCode = self.i ^ (self.i >> 1)
+ output = self.dec2bin(self.grayCode)
+
+ return "0"*(self.bits-len(output))+output
+
+
+ def dec2bin(self,num):
+ """Convert long/integer number to binary string.
+
+ E.g. dec2bin(12) ==> '1100'.
+
+ from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
+
+ assert num >= 0, "Decimal number must be >= 0!"
+
+ # Gracefully handle degenerate case.
+ # (Not really needed, but anyway.)
+ if num == 0:
+ return '0'
+
+ # Find highest value bit.
+ val, j = 1L, 1L
+ while val < num:
+ val, j = val*2L, j+1L
+
+ # Convert.
+ bin = ''
+ i = j - 1
+ while i + 1L:
+ k = pow(2L, i)
+ if num >= k:
+ bin = bin + '1'
+ num = num - k
+ else:
+ if len(bin) > 0:
+ bin = bin + '0'
+ i = i - 1L
+
+ return bin
+
+ def reset(self):
+ self.i = 0
+ self.grayCode = 0
+ if self.reorder:
+ self.reorder = int(random()*40319)+1
+
+
+class StringIdler(Idler):
+ def __init__(self, v, text="Hello Cruel World! ",repeat=True):
+ self.v = v
+ self.mk = MessageKeeper(v)
+ self.text = self.clean_text(text) + " "
+
+ msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
+ self.mk.set_messages(msg)
+
+ def clean_text(self, text):
+ # nothing like a bit of good clean text :)
+ valid = string.digits \
+ + string.letters \
+ + string.punctuation \
+ + " "
+ # uppercase it
+ text = string.upper(text)
+ clean = ""
+ for char in text:
+ if char in valid:
+ clean = clean + char
+ else:
+ clean = clean + " "
+ return clean
+
+ def next(self):
+ self.mk.update_display()
+
+ def finished(self):
+ return self.mk.done()
+
+class ClockIdler(Idler):
+ def __init__(self, v):
+ self.v = v
+ self.last = None
+
+ def next(self):
+ colonchar = ':'
+ if int(time.time()*2) & 1: colonchar = ' '
+ output = time.strftime("%%H%c%%M%c%%S"%(colonchar,colonchar))
+ if output != self.last:
+ self.v.display(" %8.8s " % (output))
+ self.last = output
+
+ def affinity(self):
+ return 3
+
+class FortuneIdler(StringIdler):
+ def __init__(self, v):
+ fortune = "/usr/games/fortune"
+ text = "I broke my wookie...."
+ if os.access(fortune,os.F_OK|os.X_OK):
+ (lines, unused) = Popen((fortune,), close_fds=True, stdout=PIPE).communicate()
+ text = string.join(lines)
+ StringIdler.__init__(self, v, text,repeat=False)
+
+ def affinity(self):
+ return 20
+
+class PipeIdler(StringIdler):
+ def __init__(self, v, command, args):
+ text = "I ate my cookie...."
+ if os.access(command,os.F_OK|os.X_OK):
+ (lines, unused) = Popen([command,] + args.split(), close_fds=True, stdout=PIPE).communicate()
+ text = string.join(lines)
+ StringIdler.__init__(self, v, text,repeat=False)
+
+ def affinity(self):
+ return 20
+
+class FileIdler(StringIdler):
+ def __init__(self, v, thefile=None, repeat=False, affinity=8):
+ text = "I broke my wookie...."
+ self._affinity = affinity
+
+ if file and os.access(thefile,os.F_OK|os.R_OK):
+ f = file(thefile,'r')
+ text = string.join(f.readlines())
+ f.close()
+ StringIdler.__init__(self, v, text,repeat=repeat)
+
+ def affinity(self):
+ return self._affinity