diff --git a/include/ds_ctrl_lines.h b/include/ds_ctrl_lines.h
index 2967f15..bf8330e 100755
--- a/include/ds_ctrl_lines.h
+++ b/include/ds_ctrl_lines.h
@@ -16,7 +16,7 @@
 #define LINE_THRESH 90
 #define EXTIME 100
 
-class DSCtrlLines : public DataSourceCtrl {
+class DSCtrlLines : public DataSourceCtrl{
 
     public:
         DSCtrlLines();
diff --git a/include/line_system.h b/include/line_system.h
new file mode 100644
index 0000000..0f94b68
--- /dev/null
+++ b/include/line_system.h
@@ -0,0 +1,11 @@
+#pragma once
+#include "ds_ctrl_lines.h"
+#include "games.h"
+#include "game.h"
+
+class LineSystem : public DSCtrlLines{
+    public:
+        LineSystem(DSCtrlLines* method, Game* strategy);
+        virtual void update() = 0;
+        virtual void test() = 0;
+};
\ No newline at end of file
diff --git a/include/sensors.h b/include/sensors.h
index 9907900..91251bd 100755
--- a/include/sensors.h
+++ b/include/sensors.h
@@ -25,7 +25,7 @@ s_extr vector<DataSource*> lIn;
 s_extr vector<DataSource*> lOut;
 s_extr vector<DataSource*> dUs;
 
-s_extr DSCtrlLines* usCtrl;
+s_extr DataSourceCtrl* usCtrl;
 s_extr DSCtrlLines* linesCtrl;
 
 s_extr DataSourceBNO055* compass;