3 import string, time, popen2, os
4 from random import random
5 from MessageKeeper import MessageKeeper
12 def __init__(self, v):
16 """Displays next stage of the idler. Returns time to the next step"""
20 """Resets the idler to a known intial state"""
24 """Returns True if the idler is considered finished"""
28 """How much we want this idler to be the next one chosen"""
31 class GreetingIdler(Idler):
32 def __init__(self, v, secs_to_greeting = None):
34 self.secs_to_greeting = secs_to_greeting
37 if not self.secs_to_greeting is None:
38 x = self.secs_to_greeting
39 self.secs_to_greeting = None
42 self.v.display('UCC SNACKS')
49 return self.secs_to_greeting == None
54 class TrainIdler(Idler):
55 def __init__(self, v):
59 def put_shark(self, s, l):
62 elif self.s[l] == 'X':
68 # does the next stage of a dance
70 shark1 = self.idle_state % 18
72 self.put_shark('^', shark1)
74 self.put_shark('^', 18-shark1)
76 shark2 = ((self.idle_state+4) % 36)/2
78 self.put_shark('<', shark2)
80 self.put_shark('<', 18-shark2)
82 shark3 = ((self.idle_state+7) % 54)/3
84 self.put_shark('>', 9-shark3)
86 self.put_shark('>', 9-(18-shark3))
88 train1 = ((self.idle_state%(18*36)))
90 if train1 > train1_start and train1 < train1_start+(10*2):
92 ptr = i+train1-train1_start-5
93 if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
95 train2 = ((self.idle_state%(18*36)))
97 if train2 > train2_start and train2 < train2_start+(10*2):
99 ptr = i+train2-train2_start-5
100 if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
102 train3 = ((self.idle_state%(18*36)))
104 if train3 > train3_start and train3 < train3_start+(10*2):
106 ptr = i+train3-train3_start-10
107 if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
109 self.v.display(string.join(self.s, ''))
111 self.idle_state %= 18*36*54
117 def __init__(self, n=8):
119 self.make_factorials(n)
121 def make_factorials(self, n):
124 for i in range(1,n+1):
125 self.factorial.append(a)
128 def order(self, index):
130 for i in range(0,self.n):
136 a = index/self.factorial[i]
137 index %= self.factorial[i]
141 for i in range(0,self.n):
143 for j in range(res[i],self.n):
148 def __getitem__(self, i):
151 class GrayIdler(Idler):
152 def __init__(self, v, one=None, zero=None, reorder=0):
154 self.size = 1 << self.bits
160 self.reorder = reorder
163 orderings = OrderMaker()
166 output = self.do_next_state()
167 # does the next stage of a dance
169 output = string.replace(output, "0", self.zero)
171 output = string.replace(output, "1", self.one)
176 newoutput += output[orderings[self.reorder][i]]
178 self.v.display(" %8.8s " % (output))
179 self.i = (self.i + 1) % self.size
181 def do_next_state(self):
182 self.grayCode = self.i ^ (self.i >> 1)
183 output = self.dec2bin(self.grayCode)
185 return "0"*(self.bits-len(output))+output
188 def dec2bin(self,num):
189 """Convert long/integer number to binary string.
191 E.g. dec2bin(12) ==> '1100'.
193 from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
195 assert num >= 0, "Decimal number must be >= 0!"
197 # Gracefully handle degenerate case.
198 # (Not really needed, but anyway.)
202 # Find highest value bit.
205 val, j = val*2L, j+1L
226 self.reorder = int(random()*40319)+1
229 class StringIdler(Idler):
230 def __init__(self, v, text="Hello Cruel World! ",repeat=True):
232 self.mk = MessageKeeper(v)
233 self.text = self.clean_text(text) + " "
235 msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
236 self.mk.set_messages(msg)
238 def clean_text(self, text):
239 # nothing like a bit of good clean text :)
240 valid = string.digits \
242 + string.punctuation \
245 text = string.upper(text)
255 self.mk.update_display()
258 return self.mk.done()
260 class ClockIdler(Idler):
261 def __init__(self, v):
267 if int(time.time()*2) & 1: colonchar = ' '
268 output = time.strftime("%%H%c%%M%c%%S"%(colonchar,colonchar))
269 if output != self.last:
270 self.v.display(" %8.8s " % (output))
276 class FortuneIdler(StringIdler):
277 def __init__(self, v):
278 fortune = "/usr/games/fortune"
279 text = "I broke my wookie...."
280 if os.access(fortune,os.F_OK|os.X_OK):
281 (stdout, stdin) = popen2.popen2(fortune)
282 text = string.join(stdout.readlines())
285 StringIdler.__init__(self, v, text,repeat=False)
290 class PipeIdler(StringIdler):
291 def __init__(self, v, command, args):
292 text = "I ate my cookie...."
293 if os.access(command,os.F_OK|os.X_OK):
294 (stdout, stdin) = popen2.popen2(command+' '+args)
295 text = string.join(stdout.readlines())
298 StringIdler.__init__(self, v, text,repeat=False)
303 class FileIdler(StringIdler):
304 def __init__(self, v, thefile=None, repeat=False):
305 text = "I broke my wookie...."
307 if file and os.access(thefile,os.F_OK|os.R_OK):
308 f = file(thefile,'r')
309 text = string.join(f.readlines())
311 StringIdler.__init__(self, v, text,repeat=repeat)