Source Code for Module gameobjects.util

 1  from math import * 
 2   
 3 -def format_number(n, accuracy=6): 
 4      """Formats a number in a friendly manner 
 5      (removes trailing zeros and unneccesary point.""" 
 6   
 7      fs = "%."+str(accuracy)+"f" 
 8      str_n = fs%float(n) 
 9      if '.' in str_n: 
10          str_n = str_n.rstrip('0').rstrip('.') 
11      if str_n == "-0": 
12          str_n = "0" 
13      #str_n = str_n.replace("-0", "0") 
14      return str_n 
15   
16   
17 -def lerp(a, b, i): 
18      """Linear enterpolate from a to b.""" 
19      return a+(b-a)*i 
20   
21   
22 -def range2d(range_x, range_y): 
23   
24      """Creates a 2D range.""" 
25   
26      range_x = list(range_x) 
27      return [ (x, y) for y in range_y for x in range_x ] 
28   
29   
30 -def xrange2d(range_x, range_y): 
31   
32      """Iterates over a 2D range.""" 
33   
34      range_x = list(range_x) 
35      for y in range_y: 
36          for x in range_x: 
37              yield (x, y) 
38   
39   
40 -def saturate(value, low, high): 
41      return min(max(value, low), high) 
42   
43   
44 -def is_power_of_2(n): 
45      """Returns True if a value is a power of 2.""" 
46      return log(n, 2) % 1.0 == 0.0 
47   
48   
49 -def next_power_of_2(n): 
50      """Returns the next power of 2 that is >= n""" 
51      return int(2 ** ceil(log(n, 2))) 
52   
53  if __name__ == "__main__": 
54   
55      print list( xrange2d(xrange(3), xrange(3)) ) 
56      print range2d(xrange(3), xrange(3)) 
57      print is_power_of_2(7) 
58      print is_power_of_2(8) 
59      print is_power_of_2(9) 
60   
61      print next_power_of_2(7) 
62