adding offsets to challenges to align turtle starting position

2 files changed, 56 insertions, 1 deletions

diff --git a/TurtleConfusionActivity.py b/TurtleConfusionActivity.py
index c966ffe..3aa9cef 100644
--- a/TurtleConfusionActivity.py
+++ b/TurtleConfusionActivity.py
@@ -911,6 +911,20 @@ class TurtleConfusionActivity(activity.Activity):
         """
         for i in range(40):
             level_files.append('confusion-%d' % (i+1))
+
+        '''
+        '''
+        self.offsets = {}
+        offset_fd = open(os.path.join(activity.get_bundle_path(), 'challenges',
+                                      'offsets'))
+        for line in offset_fd:
+            try:
+                idx, offsets = line.strip('\n').split(':')
+                xoffset, yoffset = offsets.split(',')
+                self.offsets[int(idx)] = (int(xoffset), int(yoffset))
+            except ValueError:
+                pass
+        offset_fd.close()
         return level_files
 
     def _levels_cb(self, combobox=None):
@@ -937,7 +951,13 @@ class TurtleConfusionActivity(activity.Activity):
                     activity.get_bundle_path(), 'images',
                     'turtle-a.png'))
             # Slight offset to account for stroke width
-            self.tw.canvas.setxy(-2.5, -2.5, pendown=False)
+            if self._level + 1 in self.offsets:
+                xoffset = self.offsets[self._level + 1][0]
+                yoffset = self.offsets[self._level + 1][1]
+            else:
+                xoffset = 0
+                yoffset = 0
+            self.tw.canvas.setxy(-2.5 + xoffset, -2.5 + yoffset, pendown=False)
             self.tw.lc.insert_image(center=False,
                                     filepath=os.path.join(
                     activity.get_bundle_path(), 'challenges',
diff --git a/challenges/offsets b/challenges/offsets
new file mode 100644
index 0000000..0cacd33
--- /dev/null
+++ b/challenges/offsets
@@ -0,0 +1,35 @@
+5:-100,0
+7:-141,-141
+10:0,-48
+11:0,-51
+12:0,-72
+13:0,-115
+14:0,-122
+15:-117,0
+16:-150,-150
+17:-100,-85
+18:-100,-100
+19:-150,-150
+20:-100,-118
+21:-100,-100
+22:-100,-100
+23:-150,-150
+24:-175,-150
+25:-75,-94
+26:-105,-125
+27:-150,-150
+28:-107,-107
+29:-155,-161
+30:-130,-152
+31:0,-50
+32:-121,-121
+33:-106,-106
+34:-100,-100
+35:-150,-150
+36:-121,-121
+37:-100,-100
+38:-106,-106
+39:-100,-100
+40:-104,-104
+
+