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author | Martin Možina <martin.mozina@fri.uni-lj.si> | 2015-10-14 18:08:44 +0200 |
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committer | Martin Možina <martin.mozina@fri.uni-lj.si> | 2015-10-14 18:08:44 +0200 |
commit | 531bde7a2fe3d643e9b6ffe690405b6cc07c4964 (patch) | |
tree | 9fcdd54ec25cacc32cd5aaacfb731c174278fab8 /robot/problems/introduction/wall1m/common.py | |
parent | 1b936a961e39b2a71b5a773776474446f0c58447 (diff) | |
parent | b1deb24a05a380450ed9dc77c3155a16bd204dfc (diff) |
Merge branch 'master' of 192.168.15.97:codeq-problems
Diffstat (limited to 'robot/problems/introduction/wall1m/common.py')
-rw-r--r-- | robot/problems/introduction/wall1m/common.py | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/robot/problems/introduction/wall1m/common.py b/robot/problems/introduction/wall1m/common.py new file mode 100644 index 0000000..2a93573 --- /dev/null +++ b/robot/problems/introduction/wall1m/common.py @@ -0,0 +1,80 @@ +# coding=utf-8 + +from python.util import has_token_sequence, string_almost_equal, \ + string_contains_number, get_tokens, get_numbers, get_exception_desc +from server.hints import Hint, HintSequence + +id = 215 +group = 'introduction' +number = 6 +visible = True + +solution = '''\ +from ev3dev import * +from mindstorms_widgets import mindstorms_widgets + +robot = mindstorms_widgets() +robot.connect_motor( 'left' ) +robot.connect_motor( 'right' ) +robot.connect_sensor( 'ultrasonic' ) +robot.move_steering( 'on', power=80 ) +while robot.ultrasonic_sensor_measure( 'distance-cm' ) > 500: + pass +robot.move_steering( 'on', power=20 ) +while robot.ultrasonic_sensor_measure( 'distance-cm' ) > 200: + pass +robot.move_steering( 'off' ) +''' + +hint_type = { + 'mW_init': Hint('mW_init'), + 'connectMotorLeft': Hint('connectMotorLeft'), + 'connectMotorRight': Hint('connectMotorRight'), + 'moveSteeringOn': Hint('moveSteeringOn'), + 'moveSteeringOff': Hint('moveSteeringOff'), + 'connectUltrasonicSensor': Hint('connectUltrasonicSensor'), + 'ultrasonicSensorMeasure': Hint('ultrasonicSensorMeasure'), + 'power80': Hint('power80'), + 'power20': Hint('power20'), + 'while': Hint('while') +} + +def hint( code ): + tokens = get_tokens(code) + lines = code.split('\n') + + # if code does not include mindstorms_widgets(), a student gets a hint that the robot should be somehow represented in the program + if not has_token_sequence(tokens, ['mindstorms_widgets', '(',')']): + return [{'id': 'mW_init'}] + + # if code does not include connect_motor statement, a student needs to learn about how to connect the motors + if not has_token_sequence(tokens, ['connect_motor']) and not has_token_sequence(tokens, ['left']): + return [{'id': 'connectMotorLeft'}] + + # if code does not include connect_motor statement, a student needs to learn about how to connect the motors + if not has_token_sequence(tokens, ['connect_motor']) and not has_token_sequence(tokens, ['right']): + return [{'id': 'connectMotorRight'}] + + if not (has_token_sequence(tokens, ['connect_sensor', '(']) and 'ultrasonic' in code) : + return [{'id': 'connectUltrasonicSensor'}] + + if not (has_token_sequence(tokens, ['move_steering', '(']) and 'on' in code): + return [{'id': 'moveSteeringOn'}] + + if not (has_token_sequence(tokens, ['move_steering', '(']) and 'off' in code): + return [{'id': 'moveSteeringOff'}] + + #if not (has_token_sequence(tokens, ['ultrasonic_sensor_measure', '(']) and 'distance-cm' in code): + if not any(('ultrasonic_sensor_measure' in s and '(' in s and 'distance-cm' in s) for s in lines): + return [{'id': 'ultrasonicSensorMeasure'}] + + if not any(('power' in s and '80' in s and '=' in s) for s in lines): + return [{'id': 'power80'}] + + if not any(('power' in s and '20' in s and '=' in s) for s in lines): + return [{'id': 'power20'}] + + if not has_token_sequence(tokens, ['while']): + return [{'id': 'while'}] + + return None |