1 files changed, 126 insertions, 0 deletions
diff --git a/Cursor.cpp b/Cursor.cpp
new file mode 100644
index 0000000..2b02ad6
--- /dev/null
+++ b/Cursor.cpp
@@ -0,0 +1,126 @@
+/* *******************************************************************
+ *  Includes
+ * ******************************************************************/
+
+#include "Cursor.h"
+#include <stdint.h>
+
+/* *******************************************************************
+ *  Defines
+ * ******************************************************************/
+
+#define CURSOR_DEFAULT_X    (static_cast<uint8_t>(80 >> 1))
+#define CURSOR_DEFAULT_Y    (static_cast<uint8_t>(44 >> 1))
+
+/* *******************************************************************
+ *  Types definition
+ * ******************************************************************/
+
+/* *******************************************************************
+ *  Global variables definition
+ * ******************************************************************/
+
+/* *******************************************************************
+ *  Local variables definition
+ * ******************************************************************/
+
+/* *******************************************************************
+ *  Local prototypes declaration
+ * ******************************************************************/
+
+/* *******************************************************************
+ *  Functions definition
+ * ******************************************************************/
+
+/*****************************************************************//**
+ *
+ * \brief   Constructor for Cursor class.
+ *
+ *********************************************************************/
+Cursor::Cursor(void) :
+_x(CURSOR_DEFAULT_X),
+_y(CURSOR_DEFAULT_Y)
+{
+}
+
+/*****************************************************************//**
+ *
+ * \brief   This function moves the cursor to a given position,
+ *          as long as X coordinates are between {0, CURSOR_DEFAULT_X}
+ *          and Y coordinates are between {0, CURSOR_DEFAULT_Y}.
+ *
+ * \param   x
+ *              X position diff.
+ *
+ * \param   y
+ *              Y position diff.
+ *
+ *********************************************************************/
+void Cursor::move(const int8_t x, const int8_t y)
+{
+    if ((static_cast<int8_t>(_x) + x >= 0)
+                    &&
+        (static_cast<int8_t>(_x) + x <= CURSOR_DEFAULT_X))
+    {
+        _x += x;
+    }
+
+    if ((static_cast<int8_t>(_y) + y >= 0)
+                    &&
+        (static_cast<int8_t>(_y) + y <= CURSOR_DEFAULT_Y))
+    {
+        _y += y;
+    }
+}
+
+/*****************************************************************//**
+ *
+ * \brief   This function simply returns cursor X position.
+ *
+ * \return  Returns cursor X position.
+ *
+ *********************************************************************/
+uint8_t Cursor::getX(void)
+{
+    return _x;
+}
+
+/*****************************************************************//**
+ *
+ * \brief   This function simply returns cursor Y position.
+ *
+ * \return  Returns cursor Y position.
+ *
+ *********************************************************************/
+uint8_t Cursor::getY(void)
+{
+    return _y;
+}
+
+/*****************************************************************//**
+ *
+ * \brief   This function returns whether cursor is on its initial
+ *          X position.
+ *
+ * \return  True if \ref Cursor object is on its initial X position,
+ *          false otherwise.
+ *
+ *********************************************************************/
+bool Cursor::isXCentered(void)
+{
+    return _x == CURSOR_DEFAULT_X;
+}
+
+/*****************************************************************//**
+ *
+ * \brief   This function returns whether cursor is on its initial
+ *          Y position.
+ *
+ * \return  True if \ref Cursor object is on its initial Y position,
+ *          false otherwise.
+ *
+ *********************************************************************/
+bool Cursor::isYCentered(void)
+{
+    return _y == CURSOR_DEFAULT_Y;
+}