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"""
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 TrainIdler(Idler):
32 def __init__(self, v):
36 def put_shark(self, s, l):
39 elif self.s[l] == 'X':
45 # does the next stage of a dance
47 shark1 = self.idle_state % 18
49 self.put_shark('^', shark1)
51 self.put_shark('^', 18-shark1)
53 shark2 = ((self.idle_state+4) % 36)/2
55 self.put_shark('<', shark2)
57 self.put_shark('<', 18-shark2)
59 shark3 = ((self.idle_state+7) % 54)/3
61 self.put_shark('>', 9-shark3)
63 self.put_shark('>', 9-(18-shark3))
65 train1 = ((self.idle_state%(18*36)))
67 if train1 > train1_start and train1 < train1_start+(10*2):
69 ptr = i+train1-train1_start-5
70 if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
72 train2 = ((self.idle_state%(18*36)))
74 if train2 > train2_start and train2 < train2_start+(10*2):
76 ptr = i+train2-train2_start-5
77 if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
79 train3 = ((self.idle_state%(18*36)))
81 if train3 > train3_start and train3 < train3_start+(10*2):
83 ptr = i+train3-train3_start-10
84 if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
86 self.v.display(string.join(self.s, ''))
88 self.idle_state %= 18*36*54
94 def __init__(self, n=8):
104 from copy import deepcopy
105 if len(self.s) == self.n:
106 self.a.append(deepcopy(self.s))
108 for x in range(0,self.n):
109 if self.u[x]: continue
119 class GrayIdler(Idler):
120 def __init__(self, v, one=None, zero=None, reorder=0):
122 self.size = 1 << self.bits
128 self.reorder = reorder
131 orderings = OrderMaker().order()
134 output = self.do_next_state()
135 # does the next stage of a dance
137 output = string.replace(output, "0", self.zero)
139 output = string.replace(output, "1", self.one)
144 newoutput += output[orderings[self.reorder][i]]
146 self.v.display(" %8.8s " % (output))
147 self.i = (self.i + 1) % self.size
149 def do_next_state(self):
150 self.grayCode = self.i ^ (self.i >> 1)
151 output = self.dec2bin(self.grayCode)
153 return "0"*(self.bits-len(output))+output
156 def dec2bin(self,num):
157 """Convert long/integer number to binary string.
159 E.g. dec2bin(12) ==> '1100'.
161 from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
163 assert num >= 0, "Decimal number must be >= 0!"
165 # Gracefully handle degenerate case.
166 # (Not really needed, but anyway.)
170 # Find highest value bit.
173 val, j = val*2L, j+1L
194 self.reorder = int(random()*40319)+1
197 class StringIdler(Idler):
198 def __init__(self, v, text="Hello Cruel World! ",repeat=True):
200 self.mk = MessageKeeper(v)
201 self.text = self.clean_text(text) + " "
203 msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
204 self.mk.set_messages(msg)
206 def clean_text(self, text):
207 # nothing like a bit of good clean text :)
208 valid = string.digits \
210 + string.punctuation \
213 text = string.upper(text)
223 self.mk.update_display()
226 return self.mk.done()
228 class ClockIdler(Idler):
229 def __init__(self, v):
234 output = time.strftime("%H:%M:%S")
235 if output != self.last:
236 self.v.display(" %8.8s " % (output))
242 class FortuneIdler(StringIdler):
243 def __init__(self, v):
244 fortune = "/usr/games/fortune"
245 text = "I broke my wookie...."
246 if os.access(fortune,os.F_OK|os.X_OK):
247 (stdout, stdin) = popen2.popen2(fortune)
248 text = string.join(stdout.readlines())
251 StringIdler.__init__(self, v, text,repeat=False)
256 class PipeIdler(StringIdler):
257 def __init__(self, v, command, args):
258 text = "I ate my cookie...."
259 if os.access(command,os.F_OK|os.X_OK):
260 (stdout, stdin) = popen2.popen2(command+' '+args)
261 text = string.join(stdout.readlines())
264 StringIdler.__init__(self, v, text,repeat=False)
269 class FileIdler(StringIdler):
270 def __init__(self, v, thefile=None, repeat=False):
271 text = "I broke my wookie...."
273 if file and os.access(thefile,os.F_OK|os.R_OK):
274 f = file(thefile,'r')
275 text = string.join(f.readlines())
277 StringIdler.__init__(self, v, text,repeat=repeat)