1 files changed, 17 insertions, 2 deletions
diff --git a/src/grids.h b/src/grids.h
index f1581b3..8c9db91 100644
--- a/src/grids.h
+++ b/src/grids.h
@@ -1,18 +1,33 @@
 #pragma once
 
 #include <stddef.h>
+#include <stdio.h>
 #include <stdbool.h>
+#include <complex.h>
+
+//grid write errors
+#define GRID_NO_DATA 1
+#define GRID_WRITE_ERROR 2
+
+#define GRID_MAGIC_NUMBER 0xA6005E
 
 typedef struct {
     size_t x;
     size_t y;
     size_t size;
+    double complex lower_left;
+    double complex upper_right;
     size_t* data;
 } grid_t;
 
-grid_t* create_grid(const size_t x, const size_t y);
-void set_grid(grid_t* grid, const double val);
+grid_t* create_grid(const size_t x, const size_t y, double complex lower_left, double complex upper_right);
+void set_grid(grid_t* grid, const size_t val);
 grid_t* copy_grid(const grid_t* grid);
 void free_grid(grid_t* grid);
 bool grid_equal(const grid_t* grid1, const grid_t* grid2);
 bool grid_allclose(const grid_t* grid1, const grid_t* grid2, const size_t max_error);
+
+double complex grid_to_complex(const grid_t* grid, const size_t index);
+
+int write_grid(FILE* restrict file, const grid_t* grid);
+grid_t* read_grid(FILE* restrict file);