timer.py

from pygame.time import get_ticks

class Timer:
	def __init__(self, duration, repeated = False, func = None):
		self.repeated = repeated
		self.func = func
		self.duration = duration

		self.start_time = 0
		self.active = False

	def activate(self):
		self.active = True
		self.start_time = get_ticks()

	def deactivate(self):
		self.active = False
		self.start_time = 0

	def update(self):
		current_time = get_ticks()
		if current_time - self.start_time >= self.duration and self.active:
			
			# call a function 
			if self.func and self.start_time != 0:
				self.func()

			# reset timer
			self.deactivate()

			# repeat the timer
			if self.repeated:
				self.activate()