How stupid of me. Raise error when file exists.

Start trial from 1.
Fixes #41

Author: Dilawar Singh

PointGreyCamera/src/main.cpp

@@ -122,14 +122,12 @@ void SaveAllFrames(vector<Mat>& frames, const size_t trial)
     // Check if file arealy exists. If yes, raise all the hell.
     using namespace boost::filesystem;
     path p(outfile);
-    if(! exists(p))
+    if(exists(p))
     {
         cout << "[ERROR] Files " << outfile << " already exists. I will not overwrite " << p << endl;
         throw runtime_error( "WILL NOT OVERWRITE EXISTING DATA.");
     }
 
-
-
     write_frames_to_tiff(outfile, frames);
     cout << "[INFO] Saved data to " << outfile << endl;
 

src/main.ino

@@ -540,13 +540,14 @@ void loop()
     unsigned numProbeTrials = 0;
     unsigned nextProbeTrialIndex = random(5, 10);
 
-    for (size_t i = 0; i <= PROTO_NumTrialsInABlock; i++)
+    for (size_t i = 1; i <= PROTO_NumTrialsInABlock; i++)
     {
 
         reset_watchdog( );
+        trial_count_ = i;
         if(String("TONE/LIGHT") == String(PROTO_CSValue))
         {
-            // mixed trials.
+            // FOR Shomu. Mixed trials.
             bool isprobe = false;
             if( i % 5 == 0 )
                 isprobe = true;
@@ -564,7 +565,6 @@ void loop()
             }
             do_trial(i, isprobe);
         }
-        trial_count_ += 1;
     }
 
     // Don't do anything once all trails are over.