3 files changed, 62 insertions, 42 deletions
diff --git a/robot/problems/introduction/forward/common.py b/robot/problems/introduction/forward/common.py
index 5023d7f..d1e1193 100644
--- a/robot/problems/introduction/forward/common.py
+++ b/robot/problems/introduction/forward/common.py
@@ -1,6 +1,8 @@
 # coding=utf-8
 
-from server.hints import Hint
+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 = 202
 group = 'introduction'
@@ -13,21 +15,47 @@ from ev3dev import *
 from mindstorms_widgets import mindstorms_widgets
 
 robot = mindstorms_widgets()
-robot.connect_motor('left')
-robot.connect_motor('right')
+robot.connect_motor( 'left' )
+robot.connect_motor( 'right' )
 
-robot.move_steering('on', power=50)
-time.sleep(3)
-robot.move_steering('off', brake_at_end=True)
+robot.move_steering( 'on_for_seconds', direction=0, seconds=3 )
 '''
 
 hint_type = {
-    'ev3dev': Hint('ev3dev'),
-    'mindWidgets': Hint('mindWidgets'),
+    'mW_init': Hint('mW_init'),
+    'connectMotorLeft': Hint('connectMotorLeft'),
+    'connectMotorRight': Hint('connectMotorRight'),
+    'moveSteering': Hint('moveSteering'),
+    'onForSeconds': Hint('onForSeconds'),
+    'direction': Hint('direction'),
+    'seconds': Hint('seconds'),
 }
 
-def test(program):
-    return False, []
+def hint( code):
+    tokens = get_tokens(code)
 
-def hint(program):
-    return []
+    # 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, ['move_steering']):
+        return [{'id': 'moveSteering'}]
+
+    if not has_token_sequence(tokens, ['on_for_seconds']):
+        return [{'id': 'onForSeconds'}]
+    
+    if not has_token_sequence(tokens, ['direction']):
+        return [{'id': 'direction'}]
+    
+    if not has_token_sequence(tokens, ['seconds']):
+        return [{'id': 'seconds'}]
+
+    return None
diff --git a/robot/problems/introduction/forward/en.py b/robot/problems/introduction/forward/en.py
index d943867..f8e1730 100644
--- a/robot/problems/introduction/forward/en.py
+++ b/robot/problems/introduction/forward/en.py
@@ -1,24 +1,15 @@
 # coding=utf-8
+import server
+mod = server.problems.load_language('python', 'en')
 
 id = 202
-name = 'Forward'
-slug = 'Forward'
+name = 'Forward 3s'
+slug = 'Forward 3s'
 
 description = '''\
-<p>Robot should drive forward in a straight line and stop after three
-seconds.</p>
+<p>Write a program that would make the robot drive straight forward for 3 seconds and stop</p>
 '''
 
-plan = []
-
 hint = {
-    'ev3dev': '''\
-<p>To work with the robot you should import the ev3dev module:
-<code>from ev3dev import *</code>.</p>
-''',
-
-    'mindWidgets': '''\
-<p>To work with the robot you should import the mindstorms_widgets module:
-<code>from mindstorms_widgets import mindstorms_widgets</code>.</p>
-''',
+    
 }
diff --git a/robot/problems/introduction/forward/sl.py b/robot/problems/introduction/forward/sl.py
index 98f3a8d..9a37b3c 100644
--- a/robot/problems/introduction/forward/sl.py
+++ b/robot/problems/introduction/forward/sl.py
@@ -1,23 +1,24 @@
 # coding=utf-8
+import server
+mod = server.problems.load_language('python', 'sl')
 
 id = 202
-name = 'Naprej'
-slug = 'Naprej'
+name = 'Naprej 3s'
+slug = 'Naprej 3s'
 
 description = '''\
-<p>Robot naj pelje naravnost naprej in se po treh sekundah ustavi.</p>
-'''
-
-plan = []
+<p>Napiši program, da bo robot peljal naravnost naprej 3 sekunde in se nato ustavil.</p>'''
 
 hint = {
-    'ev3dev': '''\
-<p>Za delo z robotom moramo uvoziti modul ev3dev:
-<code>from ev3dev import *</code>.</p>
-''',
-
-    'mindWidgets': '''\
-<p>Za delo z robotom moramo uvoziti modul mindstorms_widgets:
-<code>from mindstorms_widgets import mindstorms_widgets</code>.</p>
-''',
+    'mW_init':['''<p>Robota v programu predstavimo z mindstorms_widgets(): <code>robot = mindstorms_widgets()</code>.</p>'''],
+    'connectMotorLeft':['''<p>Robotu moramo priključiti levi motor: <code>robot.connect_motor( 'left' )</code>.</p>'''],
+    'connectMotorRight':['''<p>Robotu moramo priključiti desni motor: <code>robot.connect_motor( 'right' )</code>.</p>'''],
+    'moveSteering':['''<p>Sinhroniziraj motorja in ju zaženi za 3 sekunde.</p>''',
+                    '''<p>Za sinhronizirano vožnjo je najbolj primerna metoda <code>robot.move_steering( ... )</code>.</p>'''],
+    'onForSeconds':['''<p>Prvi argument metode <code>robot.move_steering</code> naj pove, da bo delovanje motorjev časovno omejeno.</p>''',
+                    '''<p><code>robot.move_steering('on_for_seconds', ... )</code>.</p>'''],
+    'direction':['''<p>Navedi smer premikanja motorjev, naravnost = 0.</p>''',
+                    '''<p><code>robot.move_steering( 'on_for_seconds', direction=0, ... )</code>.</p>'''],
+    'seconds':['''<p>Napiši časovno omejitev v sekundah.</p>''',
+                    '''<p><code>robot.move_steering( 'on_for_seconds', direction=0, seconds=3 )</code>.</p>'''],
 }