add wait4Trigger.m

Author: marcobarilari

subfun/wait4Trigger.m

@@ -0,0 +1,33 @@
+function wait4Trigger(Cfg)
+
+if strcmp(Cfg.device,'Scanner')
+
+    fprintf('Waiting for trigger \n');
+
+    DrawFormattedText(Cfg.win,'Waiting For Trigger',...
+        'center', 'center', Cfg.textColor);
+    Screen('Flip', Cfg.win);
+
+    triggerCounter=0;
+
+    while triggerCounter < Cfg.numTriggers
+
+        [keyIsDown, ~, keyCode, ~] = KbCheck(-1);
+
+        if strcmp(KbName(keyCode),Cfg.triggerKey)
+
+            triggerCounter = triggerCounter+1 ;
+
+            fprintf('Trigger %s \n', num2str(triggerCounter));
+
+            DrawFormattedText(Cfg.win,['Trigger ',num2str(triggerCounter)],'center', 'center', Cfg.textColor);
+            Screen('Flip', Cfg.win);
+
+            while keyIsDown
+                [keyIsDown, ~, ~, ~] = KbCheck(-1);
+            end
+
+        end
+    end
+end
+end