import __builtin__

# class 'decorator' that records the stack at the time of creation
# be careful with this, it creates a StackTrace, and that can take a
# lot of CPU
def recordCreationStack(cls):
    if not hasattr(cls, '__init__'):
        raise 'recordCreationStack: class \'%s\' must define __init__' % cls.__name__
    cls.__moved_init__ = cls.__init__
    def __recordCreationStack_init__(self, *args, **kArgs):
        self._creationStackTrace = StackTrace(start=1)
        return self.__moved_init__(*args, **kArgs)
    def getCreationStackTrace(self):
        return self._creationStackTrace
    def getCreationStackTraceCompactStr(self):
        return self._creationStackTrace.compact()
    def printCreationStackTrace(self):
        print self._creationStackTrace
    cls.__init__ = __recordCreationStack_init__
    cls.getCreationStackTrace = getCreationStackTrace
    cls.getCreationStackTraceCompactStr = getCreationStackTraceCompactStr
    cls.printCreationStackTrace = printCreationStackTrace
    return cls

def pdir(obj, str = None, width = None,
            fTruncate = 1, lineWidth = 75, wantPrivate = 0):
    # Remove redundant class entries
    uniqueLineage = []
    for l in getClassLineage(obj):
        if type(l) == types.ClassType:
            if l in uniqueLineage:
                break
        uniqueLineage.append(l)
    # Pretty print out directory info
    uniqueLineage.reverse()
    for obj in uniqueLineage:
        _pdir(obj, str, width, fTruncate, lineWidth, wantPrivate)
        print

def quantize(value, divisor):
    # returns new value that is multiple of (1. / divisor)
    return float(int(value * int(divisor))) / int(divisor)

def quantizeVec(vec, divisor):
    # in-place
    vec[0] = quantize(vec[0], divisor)
    vec[1] = quantize(vec[1], divisor)
    vec[2] = quantize(vec[2], divisor)

def isClient():
    if hasattr(__builtin__, 'simbase') and not hasattr(__builtin__, 'base'):
        return False
    return True


__builtin__.pdir = pdir
__builtin__.isClient = isClient