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Timer.py
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Timer.py
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# Class to set up timers for the experiment
#
# Created:
# Nov 17: Naveed Ejaz
from psychopy import core
class Timer:
internal_counter = 0 # USED FOR INTERNAL CLOCKING, DO NOT CHANGE
internal_resettime = []
multiplier = 1000 # pyschopy measures in sec, convert to millisec
nCounter = 0
counter = []
resettime = []
# constructor
def __init__(self, params):
# 0. set up internal and external clocks
self.internal_counter = core.MonotonicClock()
for i in range(params['num_counter']):
self.counter.append(core.MonotonicClock())
self.resettime.append(self.counter[i].getTime())
self.nCounter += 1
# 1. reset both internal and external clocks
self.reset_internal_counter()
self.reset_all()
# returns current time (overloading the [] operator for the class)
def __getitem__(self, index):
return (self.counter[index].getTime() - self.resettime[index]) * self.multiplier
# returns current internal counter time
def get_internal_time(self):
return (self.internal_counter.getTime() - self.internal_resettime) * self.multiplier
# reset internal counter
def reset_internal_counter(self):
self.internal_resettime = self.internal_counter.getTime()
# reset counter i
def reset(self, index):
self.resettime[index] = self.counter[index].getTime()
# reset all counters
def reset_all(self):
for i in range(self.nCounter):
self.resettime[i] = self.counter[i].getTime()
# delete the timers when the object is destroyed
def __del__(self):
# 0. delete external clocks
self.counter = []
self.resettime = []
self.nCounter = 0
# 1. delete internal clocks
self.internal_counter = []
self.internal_resettime = []