Mouse and keyboard OpenSesame

# Generated by OpenSesame 0.27 (Frisky Freud)
# Mon Jan 21 12:00:42 2013 (posix)
# <http://www.cogsci.nl/opensesame>

set foreground "white"
set subject_parity "even"
set description "A template containing a practice and an experimental phase"
set title "Extended template"
set compensation "0"
set coordinates "relative"
set height "768"
set mouse_backend "xpyriment"
set width "1024"
set sampler_backend "legacy"
set keyboard_backend "legacy"
set background "black"
set subject_nr "0"
set canvas_backend "xpyriment"
set start "experiment"
set synth_backend "legacy"

define loop patch_loop
	set repeat "1"
	set description "A single block of trials"
	set skip "0"
	set offset "no"
	set item "stream_of_patches"
	set column_order ""
	set cycles "1"
	set order "random"
	run stream_of_patches

define sequence vigilance_task
	set flush_keyboard "yes"
	set description "A sequence containing a single block of trials followed by feedback to the participant"
	run patch_loop "always"

define form_multiple_choice mc
	set allow_multiple "yes"
	set description "A simple multiple choice item"
	set question "Do you like bunnies?"
	set button_text "Ok"
	set advance_immediately "yes"
	set form_title "Form title"
	set form_var "response"
	__options__
	Yes
	No
	Maybe
	__end__

define sequence stream_of_patches
	set flush_keyboard "yes"
	set description "A single trial"
	run mc "never"
	run inline_script "always"

define loop experimental_loop
	set repeat "1"
	set description "A loop containing one or more experimental blocks"
	set item "vigilance_task"
	set column_order "practice"
	set cycles "1"
	set order "random"
	setcycle 0 practice "no"
	run vigilance_task

define sequence experiment
	set flush_keyboard "yes"
	set description "The main sequence of the experiment"
	run constants "always"
	run experimental_loop "always"

define inline_script constants
	set _run ""
	___prepare__
	# Here we'll define the visual stimulus list and the
	# auditory stimulus list.


	global patch_list
	patch_list = ["horizontal.png"] * 100 + ["vertical.png"] * 20

	global sound_list
	sound_list = ["sound1.wav", "sound2.wav"]

	global wait, ISI
	# Wait between blank screen and patch (to make it
	# flickering):
	wait = 100

	# Inter stimulus interval:
	ISI = 1000
	__end__
	set description "Executes Python code"

define inline_script inline_script
	___run__
	import pygame
	from openexp.exceptions import response_error

	# Start by playing the sound file:
	my_sampler.play()
	sampler_paused = False

	for i in range(len(patch_list)):

		if sampler_paused:
			my_sampler.resume()
		# Determine the stimulus by selecting one item from the
		# stimulus list (without replacement).
		stim = patch_list.pop()
		# Set the stimulus for future use in the GUI (notably, the logger
		# item):
		exp.set("stim", stim)
		# Determine the absolute path to the image in
		# the file pool:
		path = exp.get_file(stim)

		# Show the stimulus:

		# Start with a gray background for a certain duration:
		my_canvas.show()
		self.sleep(1000)
		# Present the patch
		my_canvas.image(path)
		my_canvas.show()

		start_time = self.time()
		time_passed = 0

		while time_passed < ISI:

			# Keep checking whether the duration  of this
			# while loop is still below the maximum duration
			# (i.e. ISI).
			time_passed = self.time()-start_time
			print time_passed

			# To poll the keyboard and mouse at the same time, we use pygame
			# directly. This means that this piece of code requires the xpyriment
			# or pygame backend! See:
			# <http://www.pygame.org/docs/ref/event.html>
			button = False
			key = False
			# Loop through all 'events', which are key presses or button clicks
			for event in pygame.event.get([pygame.MOUSEBUTTONDOWN, pygame.KEYDOWN]):
				if event.type == pygame.MOUSEBUTTONDOWN:
					button = True
				elif event.type == pygame.KEYDOWN:
					if event.key == pygame.K_ESCAPE:
						raise response_error("The escape key was pressed.")
					key = True
			# If a key was pressed or a button was clicked, exit the loop
			if button or key:
				break

		# If a mouse response was collected, the for loop will be
		# continued. However, if the spacebar was pressed, we need to
		# do something else:
		if key:

			# Pause the sampler:
			my_sampler.pause()
			sampler_paused = True

			# Show the in-the-GUI-prepared form items:
			self.experiment.items['mc'].prepare()
			self.experiment.items['mc'].run()
	__end__
	___prepare__
	# Create a canvas item to display the stimulus:
	global my_canvas
	from openexp.canvas import canvas
	my_canvas = canvas(exp, bgcolor = "gray")

	# Create a sampler item that we'll need for playing
	# the sounds.
	global my_sampler
	from openexp.sampler import sampler

	# Determine the to-be-played sound file:
	sound_stim = sound_list.pop()
	sound_file = exp.get_file(sound_stim)

	my_sampler = sampler(exp, sound_file)
	__end__
	set description "Executes Python code"