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import random
import time
import math
#----------------------------------------------------------------------
# TODO: replace magic numbers with constants
# http://en.wikipedia.org/wiki/Magic_number_(programming)
#----------------------------------------------------------------------
def prob(x):
sum1 = 0
sum2 = 0
for i in x:
sum1 = sum1 + i
val = sum1 * random.randint(0, 32767) / 32768
for i in range(len(x)):
sum2 = sum2 + x[i]
if x[i]:
if sum2 >= val:
return i
break
def prob2(x):
sum1 = 0
sum2 = 0
for i in x:
sum1 = sum1 + i[1]
val = sum1 * random.randint(0, 32767) / 32768
for i in x:
sum2 = sum2 + i[1]
if i[1]:
if sum2 >= val:
return i[0]
break
def scale(val, mini=0., maxi=1., length=100):
slope = []
if (1.- val) <= 0.5:
low_val = (pow(1.-((1.- val)*2.),4.)*(-50.5)+0.5)
else:
low_val = 1.- val
if val <= 0.5:
high_val = (pow(1.-(val * 2.),4.)*(-50.5)+0.5)
else:
high_val = val
step = (maxi - mini) * (1. / length)
for i in range(length + 1):
temp = i * (1. / length) * (high_val - low_val) + low_val
if temp < 0:
temp = 0
elif temp > 1:
temp = 1
else:
temp = temp
slope.append(((step * i) + mini, int(temp * 100)))
return slope
def midtotrans(x):
return pow(1.059463, x - 36)
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