4 from random import random
5 from MessageKeeper import MessageKeeper
10 def __init__(self, v):
22 class TrainIdler(Idler):
23 def __init__(self, v):
27 def put_shark(self, s, l):
30 elif self.s[l] == 'X':
36 # does the next stage of a dance
38 shark1 = self.idle_state % 18
40 self.put_shark('^', shark1)
42 self.put_shark('^', 18-shark1)
44 shark2 = ((self.idle_state+4) % 36)/2
46 self.put_shark('<', shark2)
48 self.put_shark('<', 18-shark2)
50 shark3 = ((self.idle_state+7) % 54)/3
52 self.put_shark('>', 9-shark3)
54 self.put_shark('>', 9-(18-shark3))
56 train1 = ((self.idle_state%(18*36)))
58 if train1 > train1_start and train1 < train1_start+(10*2):
60 ptr = i+train1-train1_start-5
61 if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
63 train2 = ((self.idle_state%(18*36)))
65 if train2 > train2_start and train2 < train2_start+(10*2):
67 ptr = i+train2-train2_start-5
68 if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
70 train3 = ((self.idle_state%(18*36)))
72 if train3 > train3_start and train3 < train3_start+(10*2):
74 ptr = i+train3-train3_start-10
75 if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
77 self.v.display(string.join(self.s, ''))
79 self.idle_state %= 18*36*54
85 def __init__(self, n=8):
95 from copy import deepcopy
96 if len(self.s) == self.n:
97 self.a.append(deepcopy(self.s))
99 for x in range(0,self.n):
100 if self.u[x]: continue
110 class GrayIdler(Idler):
111 def __init__(self, v, one=None, zero=None, reorder=0):
113 self.size = 1 << self.bits
119 self.reorder = reorder
122 orderings = OrderMaker().order()
125 output = self.do_next_state()
126 # does the next stage of a dance
128 output = string.replace(output, "0", self.zero)
130 output = string.replace(output, "1", self.one)
135 newoutput += output[orderings[self.reorder][i]]
137 self.v.display(" %8.8s " % (output))
138 self.i = (self.i + 1) % self.size
140 def do_next_state(self):
141 self.grayCode = self.i ^ (self.i >> 1)
142 output = self.dec2bin(self.grayCode)
144 return "0"*(self.bits-len(output))+output
147 def dec2bin(self,num):
148 """Convert long/integer number to binary string.
150 E.g. dec2bin(12) ==> '1100'.
152 from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
154 assert num >= 0, "Decimal number must be >= 0!"
156 # Gracefully handle degenerate case.
157 # (Not really needed, but anyway.)
161 # Find highest value bit.
164 val, j = val*2L, j+1L
185 self.reorder = int(random()*40319)+1
188 class StringIdler(Idler):
189 def __init__(self, v, text="Hello Cruel World! ",repeat=True):
191 self.mk = MessageKeeper(v)
192 self.text = self.clean_text(text) + " "
194 msg = [("",False, None),(self.text, repeat, 0.8)]
195 self.mk.set_messages(msg)
197 def clean_text(self, text):
198 # nothing like a bit of good clean text :)
199 valid = string.digits \
201 + string.punctuation \
204 text = string.upper(text)
214 self.mk.update_display()
217 return self.mk.done()
219 class ClockIdler(Idler):
220 def __init__(self, v):
225 output = time.strftime("%H:%M:%S")
226 if output != self.last:
227 self.v.display(" %8.8s " % (output))