class Eye:
TIME_PREP = 150
TIME_MOTOR = 50
TIME_SACCADE = 20
TIME_PER_DEGREE = 2
def __init__(self,
text_buffer,
retina=None,
pos=(0, 0),
char_vis=(0.226, 0.404)):
self.text_buffer = text_buffer
self.retina = retina
self.pos = pos
self.char_vis = char_vis
if self.retina is None:
self.retina = Retina()
def move_to(self, new_pos):
x, y = new_pos
time = Eye.TIME_PREP + Eye.TIME_MOTOR + Eye.TIME_SACCADE
# Distance in degrees of visual angle
dist = math.sqrt(((self.pos[0] - x) * self.char_vis[0])**2 +
((self.pos[1] - y) * self.char_vis[1])**2)
time += (dist * Eye.TIME_PER_DEGREE)
self.pos = (x, y)
return time
def view(self):
x, y = self.pos
return self.retina.view_buffer(self.text_buffer, x, y)
def test_view_buffer():
r = Retina()
code = """for i in [1, 2, 3, 4]:
print "The count is", i
print "Done counting"""
buf = file_to_text_buffer(StringIO(code))
s = r.view_buffer(buf, x=7, y=1)
assert_equal(s, "** ^The count **^")
def test_view_buffer():
r = Retina()
code = """for i in [1, 2, 3, 4]:
print "The count is", i
print "Done counting"""
buf = file_to_text_buffer(StringIO(code))
s = r.view_buffer(buf, x=7, y=1)
assert_equal(s, "** ^The count **^")
class MrChipsEye(ccm.Model):
TIME_PREP = 0.150
TIME_MOTOR = 0.050
TIME_SACCADE = 0.020
TIME_PER_DEGREE = 0.002
def __init__(self,
text_buffer=None,
retina=None,
pos=(0, 0),
char_vis=(0.226, 0.404)):
self.busy = False
self.text_buffer = text_buffer
self.retina = retina
self.pos = pos
self.char_vis = char_vis
if self.retina is None:
self.retina = Retina()
def move_to(self, new_pos):
if self.busy:
return
self.busy = True
x, y = new_pos
self.log._ = "Eye movement preparation"
yield MrChipsEye.TIME_PREP
self.log._ = "Eye movement motor preparation"
yield MrChipsEye.TIME_MOTOR
# Distance in degrees of visual angle
dist = math.sqrt(((self.pos[0] - x) * self.char_vis[0])**2 +
((self.pos[1] - y) * self.char_vis[1])**2)
saccade_time = MrChipsEye.TIME_SACCADE + (dist *
MrChipsEye.TIME_PER_DEGREE)
self.log._ = "Eye movement saccade"
yield saccade_time
self.log._ = "Finished eye movement"
self.pos = (x, y)
self.busy = False
def view(self):
assert self.text_buffer is not None
x, y = self.pos
return self.retina.view_buffer(self.text_buffer, x, y)
class MrChipsEye(ccm.Model):
TIME_PREP = 0.150
TIME_MOTOR = 0.050
TIME_SACCADE = 0.020
TIME_PER_DEGREE = 0.002
def __init__(self, text_buffer=None, retina=None, pos=(0, 0),
char_vis=(0.226, 0.404)):
self.busy = False
self.text_buffer = text_buffer
self.retina = retina
self.pos = pos
self.char_vis = char_vis
if self.retina is None:
self.retina = Retina()
def move_to(self, new_pos):
if self.busy:
return
self.busy = True
x, y = new_pos
self.log._ = "Eye movement preparation"
yield MrChipsEye.TIME_PREP
self.log._ = "Eye movement motor preparation"
yield MrChipsEye.TIME_MOTOR
# Distance in degrees of visual angle
dist = math.sqrt(((self.pos[0] - x) * self.char_vis[0])**2 +
((self.pos[1] - y) * self.char_vis[1])**2)
saccade_time = MrChipsEye.TIME_SACCADE + (dist * MrChipsEye.TIME_PER_DEGREE)
self.log._ = "Eye movement saccade"
yield saccade_time
self.log._ = "Finished eye movement"
self.pos = (x, y)
self.busy = False
def view(self):
assert self.text_buffer is not None
x, y = self.pos
return self.retina.view_buffer(self.text_buffer, x, y)
