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
35 self.message_displayed = False
38 if not self.secs_to_greeting is None:
39 x = self.secs_to_greeting
40 self.secs_to_greeting = None
43 self.v.display('UCC SNACKS')
44 self.message_displayed = True
48 self.message_displayed = False
49 self.secs_to_greeting = None
52 return self.message_displayed
57 class TrainIdler(Idler):
58 def __init__(self, v):
62 def put_shark(self, s, l):
65 elif self.s[l] == 'X':
71 # does the next stage of a dance
73 shark1 = self.idle_state % 18
75 self.put_shark('^', shark1)
77 self.put_shark('^', 18-shark1)
79 shark2 = ((self.idle_state+4) % 36)/2
81 self.put_shark('<', shark2)
83 self.put_shark('<', 18-shark2)
85 shark3 = ((self.idle_state+7) % 54)/3
87 self.put_shark('>', 9-shark3)
89 self.put_shark('>', 9-(18-shark3))
91 train1 = ((self.idle_state%(18*36)))
93 if train1 > train1_start and train1 < train1_start+(10*2):
95 ptr = i+train1-train1_start-5
96 if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
98 train2 = ((self.idle_state%(18*36)))
100 if train2 > train2_start and train2 < train2_start+(10*2):
102 ptr = i+train2-train2_start-5
103 if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
105 train3 = ((self.idle_state%(18*36)))
107 if train3 > train3_start and train3 < train3_start+(10*2):
109 ptr = i+train3-train3_start-10
110 if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
112 self.v.display(string.join(self.s, ''))
114 self.idle_state %= 18*36*54
120 def __init__(self, n=8):
122 self.make_factorials(n)
124 def make_factorials(self, n):
127 for i in range(1,n+1):
128 self.factorial.append(a)
131 def order(self, index):
133 for i in range(0,self.n):
139 a = index/self.factorial[i]
140 index %= self.factorial[i]
144 for i in range(0,self.n):
146 for j in range(res[i],self.n):
151 def __getitem__(self, i):
154 class GrayIdler(Idler):
155 def __init__(self, v, one=None, zero=None, reorder=0):
157 self.size = 1 << self.bits
163 self.reorder = reorder
166 orderings = OrderMaker()
169 output = self.do_next_state()
170 # does the next stage of a dance
172 output = string.replace(output, "0", self.zero)
174 output = string.replace(output, "1", self.one)
179 newoutput += output[orderings[self.reorder][i]]
181 self.v.display(" %8.8s " % (output))
182 self.i = (self.i + 1) % self.size
184 def do_next_state(self):
185 self.grayCode = self.i ^ (self.i >> 1)
186 output = self.dec2bin(self.grayCode)
188 return "0"*(self.bits-len(output))+output
191 def dec2bin(self,num):
192 """Convert long/integer number to binary string.
194 E.g. dec2bin(12) ==> '1100'.
196 from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
198 assert num >= 0, "Decimal number must be >= 0!"
200 # Gracefully handle degenerate case.
201 # (Not really needed, but anyway.)
205 # Find highest value bit.
208 val, j = val*2L, j+1L
229 self.reorder = int(random()*40319)+1
232 class StringIdler(Idler):
233 def __init__(self, v, text="Hello Cruel World! ",repeat=True):
235 self.mk = MessageKeeper(v)
236 self.text = self.clean_text(text) + " "
238 msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
239 self.mk.set_messages(msg)
241 def clean_text(self, text):
242 # nothing like a bit of good clean text :)
243 valid = string.digits \
245 + string.punctuation \
248 text = string.upper(text)
258 self.mk.update_display()
261 return self.mk.done()
263 class ClockIdler(Idler):
264 def __init__(self, v):
270 if int(time.time()*2) & 1: colonchar = ' '
271 output = time.strftime("%%H%c%%M%c%%S"%(colonchar,colonchar))
272 if output != self.last:
273 self.v.display(" %8.8s " % (output))
279 class FortuneIdler(StringIdler):
280 def __init__(self, v):
281 fortune = "/usr/games/fortune"
282 text = "I broke my wookie...."
283 if os.access(fortune,os.F_OK|os.X_OK):
284 (stdout, stdin) = popen2.popen2(fortune)
285 text = string.join(stdout.readlines())
288 StringIdler.__init__(self, v, text,repeat=False)
293 class PipeIdler(StringIdler):
294 def __init__(self, v, command, args):
295 text = "I ate my cookie...."
296 if os.access(command,os.F_OK|os.X_OK):
297 (stdout, stdin) = popen2.popen2(command+' '+args)
298 text = string.join(stdout.readlines())
301 StringIdler.__init__(self, v, text,repeat=False)
306 class FileIdler(StringIdler):
307 def __init__(self, v, thefile=None, repeat=False, affinity=8):
308 text = "I broke my wookie...."
309 self._affinity = affinity
311 if file and os.access(thefile,os.F_OK|os.R_OK):
312 f = file(thefile,'r')
313 text = string.join(f.readlines())
315 StringIdler.__init__(self, v, text,repeat=repeat)
318 return self._affinity