"""Contains the Timer class."""
__all__ = ['Timer']
from panda3d.core import ClockObject
from . import Task
from .TaskManagerGlobal import taskMgr
[docs]class Timer:
id = 0
[docs] def __init__(self, name=None):
self.finalT = 0.0
self.currT = 0.0
if name is None:
name = 'default-timer-%d' % Timer.id
Timer.id += 1
self.name = name
self.started = 0
self.callback = None
[docs] def start(self, t, name):
if self.started:
self.stop()
self.callback = None
self.finalT = t
self.name = name
self.startT = ClockObject.getGlobalClock().getFrameTime()
self.currT = 0.0
taskMgr.add(self.__timerTask, self.name + '-run')
self.started = 1
[docs] def startCallback(self, t, callback):
if self.started:
self.stop()
self.callback = callback
self.finalT = t
self.startT = ClockObject.getGlobalClock().getFrameTime()
self.currT = 0.0
taskMgr.add(self.__timerTask, self.name + '-run')
self.started = 1
[docs] def stop(self):
if not self.started:
return 0.0
taskMgr.remove(self.name + '-run')
self.started = 0
return self.currT
[docs] def resume(self):
assert self.currT <= self.finalT
assert self.started == 0
self.start(self.finalT - self.currT, self.name)
[docs] def restart(self):
if self.callback is not None:
self.startCallback(self.finalT, self.callback)
else:
self.start(self.finalT, self.name)
[docs] def isStarted(self):
return self.started
[docs] def addT(self, t):
self.finalT = self.finalT + t
[docs] def setT(self, t):
self.finalT = t
[docs] def getT(self):
return self.finalT - self.currT
def __timerTask(self, task):
t = ClockObject.getGlobalClock().getFrameTime()
te = t - self.startT
self.currT = te
if te >= self.finalT:
if self.callback is not None:
self.callback()
else:
from direct.showbase.MessengerGlobal import messenger
messenger.send(self.name)
return Task.done
return Task.cont
