/
trainer.py
550 lines (486 loc) · 21 KB
/
trainer.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
import pygame
import sys
import yaml
import numpy as np
import game_graphics as gg
import game_run as gr
import fileutils as fu
from cursor import Cursor
from target import Target
from timer import Timer
from thermometer import Thermometer
try:
from pydaq import Pydaq
SENSOR_ACTIVE = True
except:
SENSOR_ACTIVE = False
class Trainer(object):
def __init__(self):
###############
# load config #
###############
with open('trainer_config.yaml') as f:
CONFIG = yaml.load(f)
self.exp_type = CONFIG['experiment-type']
self.playback_bool = CONFIG['playback-enabled']
self.subj_id = CONFIG['subject-id']
self.subj_dir = 'datasets/' + self.subj_id
if self.exp_type == 'timed':
fu.write_all_headers_timed(self)
elif self.exp_type == 'block':
fu.write_all_headers_block(self)
#################
# set constants #
#################
self.FRAME_RATE = 30
self.SCREEN_WIDTH, self.SCREEN_HEIGHT = 1024, 768
self.BG_COLOR_REG = 70,70,70
self.BG_COLOR_REG_2 = 110,110,110
self.BG_COLOR_REG_3 = 40,40,40
self.SUCCESS_COLOR = 70,170,70
self.INDICATOR_COLOR = 40,60,40
self.INDICATOR_COLOR_2 = 30,100,30
self.GOOD_MSG_COLOR = 160,255,160
self.BAD_MSG_COLOR = 255,160,160
self.A_MSG_COLOR = 160,160,255
self.B_MSG_COLOR = 230,230,160
self.SENSOR_INPUT_OFFSET = np.array([0.5*self.SCREEN_WIDTH,
0.5*self.SCREEN_HEIGHT])
self.NEWTONS_2_PIXEL = 200
self.BLOCK_TIME = CONFIG['block-length']
self.RESET_HOLD_TIME = 0.5
self.REACH_SUCCESS_TIME = 2.
self.NOISE_VAR_GOOD = 0.025
if not self.playback_bool:
self.NOISE_VAR_BAD = 10*self.NOISE_VAR_GOOD
else:
self.NOISE_VAR_BAD = self.NOISE_VAR_GOOD
self.SAMPLE_PERIOD = 2.
self.SAMPLE_FRAMES = self.SAMPLE_PERIOD*self.FRAME_RATE
self.TRS_SHOW_UPDATE_RATE = 2
self.TR_LIST = (0.125, .25, 0.5, 1., 2., 4.)
self.TRS_SAMPLES_DICT = dict((tr, tr/self.SAMPLE_PERIOD)
for tr in self.TR_LIST)
self.TRS_SUCCESS_DICT = dict((tr, self.REACH_SUCCESS_TIME/tr)
for tr in self.TR_LIST)
self.BUFFER_DIST = 0.075*self.SCREEN_HEIGHT
self.START_DIST = self.BUFFER_DIST
self.GAME_ORIGIN = (0.5*self.SCREEN_WIDTH-0.5*self.SCREEN_HEIGHT,
self.SCREEN_HEIGHT)
self.START_COORDS = np.array([self.GAME_ORIGIN[0]+self.BUFFER_DIST,
self.GAME_ORIGIN[1]-self.BUFFER_DIST])
self.TARGET_DIST = (0.3*self.SCREEN_HEIGHT,
0.8*self.SCREEN_HEIGHT)
self.ERROR_CUTOFF = self.TARGET_DIST[0] - self.START_DIST
self.MIN_ERROR_METRIC = 0.1
self.SS_ERROR_METRIC = 0.9
self.MIN_SUCCESS_SCORE = 0.7
self.TARGET_RAD = (self.ERROR_CUTOFF*
(1-(self.MIN_SUCCESS_SCORE-self.MIN_ERROR_METRIC)
/(self.SS_ERROR_METRIC-self.MIN_ERROR_METRIC)))
if SENSOR_ACTIVE:
self.daq = Pydaq('Dev1/ai0:1', self.FRAME_RATE)
self.VISIBLE_TRIALS = CONFIG['visible-trials']
self.INVISIBLE_TRIALS = CONFIG['invisible-trials']
self.NUM_TRIALS = self.VISIBLE_TRIALS
self.TRIAL_TYPES = 8
####################################################
# start pygame and initialize default game objects #
####################################################
pygame.init()
pygame.mouse.set_visible(not pygame.mouse.set_visible)
self.clock = pygame.time.Clock()
if CONFIG['fullscreen']:
self.screen = pygame.display.set_mode(
(self.SCREEN_WIDTH, self.SCREEN_HEIGHT),
pygame.FULLSCREEN)
else:
self.screen = pygame.display.set_mode(
(self.SCREEN_WIDTH, self.SCREEN_HEIGHT))
##################################
# initialize custom game objects #
##################################
self.cursor = Cursor(self.screen)
self.target = Target(self.screen,
self.FRAME_RATE,
self.TARGET_RAD,
self.ERROR_CUTOFF,
self.MIN_ERROR_METRIC,
self.SS_ERROR_METRIC,
self.MIN_SUCCESS_SCORE,
self.START_COORDS,
self.TARGET_DIST)
self.therm = Thermometer(self.screen,
self.MIN_ERROR_METRIC,
self.MIN_SUCCESS_SCORE,
self.SS_ERROR_METRIC)
self.INDIC_RAD_MAX = self.START_DIST-self.cursor.RAD-2
self.target.target_lims = self.TARGET_DIST
self.timers = {}
self.init_timers()
self.set_tr(2.)
self.trial_count = 0
self.trial_type_count = 1
self.next_dof = 1
self.set_dof(self.next_dof)
self.next_ir = 'impulse'
self.next_visible = True
self.set_trial()
######################
# set game variables #
######################
self.screen_mid = np.array([0.5*self.screen.get_width(),
0.5*self.screen.get_height()])
self.bg_color = self.BG_COLOR_REG
self.bg_color_alt = self.BG_COLOR_REG_2
self.bg_color_alt_2 = self.BG_COLOR_REG_3
self.indicator_color = self.INDICATOR_COLOR
self.indicator_rad = 0*self.START_DIST
self.success_color = self.SUCCESS_COLOR
self.input_mode = 'mouse'
self.input_pos = np.array([0.0,0.0])
self.training_mode = True
#######################
# set block variables #
#######################
self.NUM_BLOCK_TRIALS = CONFIG['num-block-trials']
self.next_target = 'new'
self.first_feedback = CONFIG['first-trial-feedback']
self.first_noise = CONFIG['first-trial-noise']
self.next_feedback = self.first_feedback
self.next_noise = self.first_noise
self.set_noise()
self.BLOCK_TRS = self.BLOCK_TIME/self.tr
self.block_nfb_buffer = np.zeros(self.BLOCK_TRS)
self.block_tr_count = 0
self.total_block_count = 0
self.trial_block_count = 0
##########################
# set playback variables #
##########################
self.TIME_SHIFT = 6
self.PLAYBACK_TRS = self.BLOCK_TRS + self.TIME_SHIFT/self.tr
self.EXTRA_TRS = 2
self.playback_buffer_length = (self.BLOCK_TIME
+ self.EXTRA_TRS)*self.FRAME_RATE
self.move_counter = 0
self.reset_playback_buffers()
def reset_playback_buffers(self):
self.playback_counter = 0
self.playback_time_buffer = np.zeros(self.playback_buffer_length)
self.playback_pos_buffer = np.zeros((2,self.playback_buffer_length))
self.playback_nfb_buffer = np.zeros(self.playback_buffer_length)
self.playback_nfb_points = np.zeros(self.PLAYBACK_TRS)
def get_pos(self):
if self.input_mode=='mouse' or not(SENSOR_ACTIVE):
return pygame.mouse.get_pos()
else:
f_out = self.daq.get_force()
return (self.SENSOR_INPUT_OFFSET[0]+self.NEWTONS_2_PIXEL*f_out[0],
self.SENSOR_INPUT_OFFSET[1]+self.NEWTONS_2_PIXEL*f_out[1])
def set_trial(self):
self.set_dof(self.next_dof)
self.target.set_fb_mode(self.next_ir)
self.set_training_mode(self.next_visible)
def set_noise(self):
if self.next_noise == 'good':
self.noise_var = self.NOISE_VAR_GOOD
elif self.next_noise == 'bad':
self.noise_var = self.NOISE_VAR_BAD
def set_training_mode(self, bool_arg):
self.training_mode = bool_arg
def set_tr(self, tr):
if tr == 0.125:
self.tr = 0.125
self.timers['tr'] = self.timers['tr_8hz']
elif tr == 0.25:
self.tr = 0.25
self.timers['tr'] = self.timers['tr_4hz']
elif tr == 0.5:
self.tr = 0.5
self.timers['tr'] = self.timers['tr_2hz']
elif tr == 1:
self.tr = 1.
self.timers['tr'] = self.timers['tr_1hz']
elif tr == 2:
self.tr = 2.
self.timers['tr'] = self.timers['tr_p5hz']
elif tr == 4:
self.tr = 4.
self.timers['tr'] = self.timers['tr_p25hz']
def init_timers(self):
self.timers['signal'] = Timer(self.SAMPLE_PERIOD)
self.timers['tr_8hz'] = Timer(self.TR_LIST[0])
self.timers['tr_4hz'] = Timer(self.TR_LIST[1])
self.timers['tr_2hz'] = Timer(self.TR_LIST[2])
self.timers['tr_1hz'] = Timer(self.TR_LIST[3])
self.timers['tr_p5hz'] = Timer(self.TR_LIST[4])
self.timers['tr_p25hz'] = Timer(self.TR_LIST[5])
self.timers['tr'] = self.timers['tr_2hz']
self.timers['reach'] = Timer(0)
self.timers['reach_hold'] = Timer(self.REACH_SUCCESS_TIME)
self.timers['block'] = Timer(self.BLOCK_TIME)
self.timers['reset_hold'] = Timer(self.RESET_HOLD_TIME)
def reset_all_timers(self):
for k,t in self.timers.iteritems():
t.reset()
def check_input(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
self.quit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
self.quit()
elif event.key == pygame.K_0:
self.daq.set_volts_zero()
elif event.key == pygame.K_f:
if self.dof == 1:
self.set_dof(2)
elif self.dof == 2:
self.set_dof(1)
elif event.key == pygame.K_b:
self.target.set_new_target()
elif event.key == pygame.K_v:
self.training_mode = not(self.training_mode)
elif event.key == pygame.K_c:
self.target.set_fb_mode('hrf')
elif event.key == pygame.K_x:
self.target.set_fb_mode('impulse')
elif event.key == pygame.K_m:
if self.input_mode == 'mouse':
self.input_mode = 'sensor'
elif self.input_mode == 'sensor':
self.input_mode = 'mouse'
def run_timed(self):
###########################################
# main loop for time-to-target experiment #
###########################################
while True:
time_passed = self.clock.tick_busy_loop(self.FRAME_RATE)
self.check_input()
self.input_pos = self.get_pos()
self.cursor.update(self.input_pos)
self.target.update(self.cursor.pos)
if not(self.timers['reset_hold'].time_limit_hit):
gr.check_in_start(self, time_passed)
self.target.draw_bool = True
elif not(self.cursor.has_left):
gr.check_if_left(self)
self.target.draw_bool = False
elif self.training_mode:
self.target.draw_bool = True
else:
self.target.draw_bool = False
if self.cursor.has_left:
gr.frame_based_updates_timed(self)
self.timers['signal'].update(time_passed)
self.timers['tr'].update(time_passed)
if self.timers['signal'].time_limit_hit:
gr.signal_based_updates(self)
if self.timers['tr'].time_limit_hit:
gr.tr_based_updates(self)
self.draw_background()
self.therm.draw(self.cursor.has_left,
self.target.error_metric)
self.target.draw()
if (self.trial_count == 0
and not self.cursor.has_left):
self.draw_instructions_timed()
self.cursor.draw()
pygame.display.flip()
def run_block(self):
###########################################
# main loop for block feedback experiment #
###########################################
self.target.draw_bool = False
if self.playback_bool:
self.set_dof(2)
else:
self.set_dof(1)
self.target.set_fb_mode('hrf')
while True:
time_passed = self.clock.tick_busy_loop(self.FRAME_RATE)
self.check_input()
self.input_pos = self.get_pos()
self.cursor.update(self.input_pos)
self.target.update(self.cursor.pos)
if not(self.timers['reset_hold'].time_limit_hit):
gr.check_in_start(self, time_passed)
if self.next_target == 'new':
self.target.draw_bool = True
elif not(self.cursor.has_left):
gr.check_if_left(self)
self.target.draw_bool = False
# debugging
# self.target.draw_bool = True
if self.cursor.has_left:
gr.frame_based_updates_block(self)
self.timers['signal'].update(time_passed)
self.timers['tr'].update(time_passed)
self.timers['block'].update(time_passed)
if self.timers['signal'].time_limit_hit:
gr.signal_based_updates(self)
if self.timers['tr'].time_limit_hit:
gr.tr_based_updates(self)
if self.timers['block'].time_limit_hit:
gr.block_based_updates(self)
self.draw_background()
therm_draw_bool = ((self.cursor.has_left and
self.next_feedback == 'continuous')
or (self.total_block_count > 0
and not self.cursor.has_left))
score = self.target.error_metric
self.therm.draw(therm_draw_bool,
score)
self.target.draw()
if not self.cursor.has_left:
self.draw_instructions_block()
else:
self.therm.set_score_color('norm')
self.cursor.draw()
pygame.display.flip()
def run_playback(self):
while self.move_counter > 0:
time_passed = self.clock.tick_busy_loop(self.FRAME_RATE)
self.check_input()
self.cursor.update(self.playback_pos_buffer[:,
self.playback_counter])
self.indicator_rad = int(self.INDIC_RAD_MAX*(
self.playback_time_buffer[self.playback_counter]
/float(self.timers['block'].MAX_TIME)))
self.draw_background()
self.therm.draw(True,
self.playback_nfb_buffer[self.playback_counter])
# debugging
# self.target.draw()
self.cursor.draw()
pygame.display.flip()
self.move_counter -= 1
self.playback_counter += 1
def set_dof(self, dof):
self.dof = dof
self.cursor.set_dof(dof)
self.target.set_dof(dof)
def draw_background(self):
self.screen.fill(self.bg_color_alt_2)
gr.cap_indicator_rad(self)
self.draw_play_area()
if self.indicator_rad > 0:
self.draw_indicator()
def draw_instructions_block(self):
if self.next_target == 'new':
top_msg = 'New target'
top_color = self.GOOD_MSG_COLOR
else:
top_msg = 'Same target'
top_color = self.BAD_MSG_COLOR
if self.next_feedback == 'continuous':
mid_msg = 'Continuous feedback'
mid_color = self.A_MSG_COLOR
else:
mid_msg = 'Intermittent feedback'
mid_color = self.B_MSG_COLOR
if self.next_noise == 'good':
btm_msg = 'Good signal'
btm_color = self.A_MSG_COLOR
else:
btm_msg = 'Bad signal'
btm_color = self.B_MSG_COLOR
gg.draw_msg(self.screen, top_msg,
color=top_color,
center=(self.screen_mid[0],
self.screen_mid[1]-75))
gg.draw_msg(self.screen, mid_msg,
color=mid_color,
center=(self.screen_mid[0],
self.screen_mid[1]))
if not self.playback_bool:
gg.draw_msg(self.screen, btm_msg,
color=btm_color,
center=(self.screen_mid[0],
self.screen_mid[1]+75))
def draw_instructions_timed(self):
if self.next_visible:
top_msg = 'Target visible'
top_color = self.GOOD_MSG_COLOR
else:
top_msg = 'Target invisible'
top_color = self.BAD_MSG_COLOR
if self.next_ir == 'impulse':
btm_msg = 'Instant feedback'
btm_color = self.GOOD_MSG_COLOR
else:
btm_msg = 'Delayed feedback'
btm_color = self.BAD_MSG_COLOR
gg.draw_msg(self.screen, top_msg,
color=top_color,
center=(self.screen_mid[0],
self.screen_mid[1]-50))
gg.draw_msg(self.screen, btm_msg,
color=btm_color,
center=(self.screen_mid[0],
self.screen_mid[1]+50))
def draw_play_area(self):
if self.dof == 1:
gg.draw_center_rect(self.screen,
self.SCREEN_HEIGHT, self.SCREEN_HEIGHT,
self.bg_color,
self.screen_mid[0], self.screen_mid[1])
gg.draw_center_rect(self.screen,
self.TARGET_DIST[1]-self.TARGET_DIST[0],
self.SCREEN_HEIGHT,
self.bg_color_alt,
(self.TARGET_DIST[0]
+0.5*(self.TARGET_DIST[1]
-self.TARGET_DIST[0])
+ self.START_COORDS[0]),
self.screen_mid[1])
gg.draw_center_rect(self.screen,
2*(self.START_DIST-self.cursor.RAD),
self.SCREEN_HEIGHT,
self.bg_color_alt_2,
self.START_COORDS[0], self.screen_mid[1])
elif self.dof == 2:
gg.draw_center_rect(self.screen,
self.SCREEN_HEIGHT, self.SCREEN_HEIGHT,
self.bg_color,
self.screen_mid[0], self.screen_mid[1])
gg.draw_filled_aacircle(self.screen,
self.TARGET_DIST[1],
self.bg_color_alt,
self.START_COORDS[0], self.START_COORDS[1])
gg.draw_filled_aacircle(self.screen,
self.TARGET_DIST[0],
self.bg_color,
self.START_COORDS[0], self.START_COORDS[1])
gg.draw_center_rect(self.screen,
self.SCREEN_HEIGHT, 2*self.BUFFER_DIST,
self.bg_color,
self.screen_mid[0], self.GAME_ORIGIN[1])
gg.draw_center_rect(self.screen,
2*self.BUFFER_DIST, self.SCREEN_HEIGHT,
self.bg_color,
self.GAME_ORIGIN[0], self.screen_mid[1])
gg.draw_filled_aacircle(self.screen,
self.START_DIST-self.cursor.RAD,
self.bg_color_alt_2,
self.START_COORDS[0], self.START_COORDS[1])
def draw_indicator(self):
if self.dof == 1:
gg.draw_center_rect(self.screen,
2*self.indicator_rad, self.SCREEN_HEIGHT,
self.indicator_color,
self.START_COORDS[0], self.screen_mid[1])
elif self.dof == 2:
gg.draw_filled_aacircle(self.screen,
self.indicator_rad,
self.indicator_color,
self.START_COORDS[0], self.START_COORDS[1])
def quit(self):
sys.exit()
if __name__ == "__main__":
game = Trainer()
if game.exp_type == 'timed':
game.run_timed()
elif game.exp_type == 'block':
game.run_block()