def present_trial(chosen_for_sequence,window_positions,images,the_blob):
#to calculate proportion of looks
w0,w1,w2,w3=0,0,0,0
w0_counter = 0
item_start=time()
#in order to pause the experiment
global paused
if not paused:
#haven't looked away yet, keep running
started_lookaway = False
#if they lookaway for _ seconds
lookaway_for_time =2.0
if not use_tobii_sim:
# start recording the "eye gaze" data
tobii_controller.start_tracking()
# A queue of animation operations
trial_start = time()
#create the windows as TobiiSprites so they are eye-trackable
w0 = TobiiSprite(screen, window_positions[0], kstimulus("laura_diss/window.jpg"), scale=.35,tobii_controller=tobii_controller)
w1 = TobiiSprite(screen, window_positions[1], kstimulus("laura_diss/window.jpg"), scale=.35,tobii_controller=tobii_controller)
w2 = TobiiSprite(screen, window_positions[2], kstimulus("laura_diss/window.jpg"), scale=.35,tobii_controller=tobii_controller)
w3 = TobiiSprite(screen, window_positions[3], kstimulus("laura_diss/window.jpg"), scale=.35,tobii_controller=tobii_controller)
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
images = [
CommandableImageSprite(screen, OFF_LEFT, images[0], scale=IMAGE_SCALE, name="0"),
CommandableImageSprite(screen, OFF_LEFT, images[1], scale=IMAGE_SCALE,name="1"),
CommandableImageSprite(screen, OFF_LEFT, images[2], scale=IMAGE_SCALE,name="2"),
CommandableImageSprite(screen, OFF_LEFT, images[3], scale=IMAGE_SCALE,name="3")]
img = CommandableImageSprite(screen, OFF_LEFT,chosen_for_sequence[0][0] , scale=IMAGE_SCALE)
#create the display Queue and queue up all the images
Q = DisplayQueue()
for value in chosen_for_sequence:
#img = CommandableImageSprite(screen, OFF_LEFT, value[0], scale=IMAGE_SCALE)
position = value[1]
#the animation
Q.append(obj=images[value[2]], action='wait', duration=1.0)
Q.append(obj=images[value[2]], action='move', pos=position, duration=0.0)
Q.append(obj=images[value[2]],action='circlescale',duration=1, amount=.08, period=1)
Q.append(obj=images[value[2]],action='move',pos=OFF_LEFT,duration=0.0)
dos = OrderedUpdates(the_blob,w0,w1,w2,w3,images)
# What order do we draw sprites and things in?
# Draw and update in this order
for event in kelpy_standard_event_loop(screen,Q, dos, throw_null_events=True):
#update
pygame.display.flip()
#record the active box
print >> open(matched,'a'),[time()-exp_start,Q.get_obj().get_name()]
#tobii_controller.record_event(Q.get_obj().get_name())
#can stop the experiment on a click event
if is_click(event):
if not use_tobii_sim:
tobii_controller.stop_tracking()
tobii_controller.close_data_file()
tobii_controller.destroy()
quit()
quit()
if event.type == pygame.QUIT:
pygame.quit()
return
#item animation time has run out, move on
if time()-item_start >len(chosen_images_and_quadrants)*2:
break
#the kind of complicated lookaway stuff
if not the_blob.is_looked_at():
if not started_lookaway:
print "you started looking away"
#start tracking how long they are looking away for
started_lookaway_time = time()
started_lookaway = True
print time()-started_lookaway_time
#if they have looked away for longer than lookaway_for_time, it "counts" as a lookaway
if (time() - started_lookaway_time > lookaway_for_time):
print "HEY YOURE NOT LOOKING"
break
#if they look back at the blob, restart the lookaway clock
elif the_blob.is_looked_at():
started_lookaway=False
if is_space_pressed():
paused=True
#can unpause by pressing spacebar
while paused:
for event in pygame.event.get():
if event.type==KEYUP:
if event.key==K_SPACE:
paused = False
else:
#COVERTASK! (will run when sequence == 5)
cover_task()
