Reorganize code into library for reuse

lib/grid.h

@@ -0,0 +1,18 @@
+#ifndef _GRID_H
+#define _GRID_H 1
+
+#include <mazemaker.h>
+#include <stdio.h>
+
+mazegrid_t mazegrid_new(size_t width, size_t height);
+void mazegrid_free(mazegrid_t* g);
+
+int mazegrid_set_edge(mazegrid_t* g, size_t x, size_t y, mazeedge_dir_t dir, edgeweight_t wt);
+edgeweight_t mazegrid_get_edge(mazegrid_t const* g, size_t, size_t y, mazeedge_dir_t dir);
+
+void mazegrid_randomize(mazegrid_t* g);
+void mazegrid_uniform(mazegrid_t* g);
+
+void mazegrid_print(mazegrid_t const* g, FILE * f);
+
+#endif // !def(_GRID_H)