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import Util
import pdb
from pixelevents.StepEvent import *
#Pixel keeps a queue of events (PixelEvent objects) (actually a dictionary
#keyed by event time). Every time is state is
#requested, it processes all the members of its queue. If a member returns none,
#it is removed from the queue. Otherwise, its value added to the Pixels color
#weighted by z-index.
class Pixel:
radius = 2
timeOff = -1
def __init__(self, location):
self.location = location
self.events = {}
def turnOn(self):
self.turnOnFor(-1)
#Turn the light white for 'time' ms. Really only meant for testing. Use
#processInput instead. Also, you shouldn't use this anyway. You should be
#using the input method on the screen!
def turnOnFor(self, time):
event = StepEvent.generate(time, (255,255,255)) #TODO: Move color to
self.processInput(event, 0)
#arg
#Add a pixelEvent to the list of active events
def processInput(self,pixelEvent,zindex): #consider migrating arg to dict
self.events[Util.time()] = (zindex, pixelEvent)
def clearAllEvents(self):
self.events = {}
#Combines all PixelEvents currently active and computes the current color of
#the pixel.
def state(self):
deadEvents = []
currentTime = Util.time()
resultingColor = (0,0,0)
for eventTime in self.events: #TODO: right color weighting code
(zindex,event) = self.events[eventTime]
eventResult = event.state(currentTime-eventTime)
if eventResult != None:
resultingColor = Util.combineColors(eventResult, resultingColor)
else:
deadEvents.append(eventTime)
[self.events.pop(event) for event in deadEvents]
return tuple(resultingColor)
def __str__(self):
return 'Loc: ' + str(self.location)
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