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import util.ColorOps as color
import pdb
from pixelevents.StepEvent import *
import util.TimeOps as timeops
#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 = {}
self.lastRenderTime = timeops.time()
self.lastRender = (0,0,0)
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, currentTime=None): #consider migrating arg to dict
if currentTime == None:
currentTime = timeops.time()
self.events[currentTime] = (zindex, pixelEvent)
def clearAllEvents(self):
self.events = {}
#Combines all PixelEvents currently active and computes the current color of
#the pixel.
def state(self, currentTime=timeops.time()): #TODO: this only evaluates at import time, I think
if currentTime-self.lastRenderTime < 5:
return self.lastRender
if self.events == {}:
self.lastRenderTime = currentTime
return (0,0,0)
deadEvents = []
resultingColor = (0,0,0)
colors = []
for eventTime in self.events: #TODO: right color weighting code
(zindex,event) = self.events[eventTime]
eventResult = event.state(currentTime-eventTime)
if eventResult != None:
colors.append(eventResult)
else:
deadEvents.append(eventTime)
resultingColor = color.combineColors(colors)
[self.events.pop(event) for event in deadEvents]
resultingColor = [int(round(c)) for c in resultingColor]
self.lastRender = tuple(resultingColor)
self.lastRenderTime = currentTime
return tuple(resultingColor)
def __str__(self):
return 'Loc: ' + str(self.location)
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