add a simple Map class and draw it from the Client

src/common/Map.cc

@@ -0,0 +1,16 @@
+
+#include "Map.h"
+
+using namespace std;
+
+Map::Map(int width, int height)
+{
+    m_width = width;
+    m_height = height;
+    m_grid = vector< vector< bool > >(height, vector<bool>(width, true));
+}
+
+bool Map::tile_present(int x, int y)
+{
+    return m_grid[y][x];
+}

src/common/Map.h

@@ -0,0 +1,20 @@
+
+#ifndef MAP_H
+#define MAP_H
+
+#include <vector>
+
+class Map
+{
+    public:
+        Map(int width=50, int height=50);
+        bool tile_present(int x, int y);
+        int get_width() { return m_width; }
+        int get_height() { return m_height; }
+    protected:
+        int m_width;
+        int m_height;
+        std::vector< std::vector< bool > > m_grid;
+};
+
+#endif