minor improvementsw

include/field.h

@@ -19,12 +19,10 @@ private:
     size_t FieldSize = 4;
     std::vector<Line> field;
 
-    std::vector<Tile> processLine(const std::vector<Tile> &sourceLine, Score &score);
-
-    Line getRow(size_t rowIndex) const;
-    std::vector<Tile> getColumn(size_t columnIndex) const;
-    void setRow(size_t rowIndex, const std::vector<Tile> &line);
-    void setColumn(size_t columnIndex, const std::vector<Tile> &line);
+    Line& getRow(size_t rowIndex) const;
+    Line& getColumn(size_t columnIndex) const;
+    void setRow(size_t rowIndex, const Line &line);
+    void setColumn(size_t columnIndex, const Line &line);
 
     void reset();
     void setSize(size_t size);

include/line.h

@@ -10,4 +10,18 @@ struct Line {
     Line(size_t length);
 
     void process();
+
+    void push_back(Tile tile);
+    size_t size();
+    size_t size() const;
+
+    Tile& operator[](size_t index);
+    const Tile& operator[](size_t index) const;
+    bool operator==(const Line &other) const;
+    bool operator!=(const Line &other) const;
+
+    std::vector<Tile>::iterator begin();
+    std::vector<Tile>::iterator end();
+    std::vector<Tile>::const_iterator begin() const;
+    std::vector<Tile>::const_iterator end() const;
 };