Save system

CMakeLists.txt

@@ -16,6 +16,7 @@ set(SOURCES
   src/mutation_engine.c
   src/data.c
   src/epidemic_engine.c
+  src/save.c
   # ...
 )
 # Shared assets, fx-9860G-only assets and fx-CG-50-only assets

src/main.c

@@ -17,7 +17,7 @@
 #include "core.h"
 #include "display_engine.h"
 #include "mutation_engine.h"
-
+#include "save.h"
 
 // title_screen : display the title screen
 static void title_screen(void);
@@ -41,6 +41,7 @@ int main(void)
     struct plane plane_4 = {104, 20, 3, 104, 50, 104, 20};
     struct plane plane_5 = {68, 44, 4, 34, 44, 68, 44};
 
+
     struct game current_game =
     {
         .contagion = 0,
@@ -68,17 +69,15 @@ int main(void)
     /* allocate memory */
     current_game.grid.data = calloc(current_game.grid.width * current_game.grid.height, sizeof(uint8_t));
 
-    if (current_game.grid.data == NULL)
-    {
-        const char *msg[5] = {"CALLOC", "FAILED", "", "", ""};
-        message(msg);
-    }
+    read_save(&current_game);
 
     current_game.grid.data[95 + 20 * current_game.grid.width] = 1;
     current_game.humans[0] = (current_game.grid.width * current_game.grid.height) - 1;
 
     main_loop(&current_game);
 
+    write_save(&current_game);
+
     /* free memory */
     free(current_game.grid.data);
 

src/save.c

@@ -0,0 +1,47 @@
+#include <gint/bfile.h>
+#include <gint/defs/types.h>
+#include <gint/std/stdlib.h>
+
+#include "save.h"
+
+// Name of the savefile
+static const uint16_t *filename = u"\\\\fls0\\Plague.sav";
+
+
+void read_save(struct game *current_game)
+{
+    struct BFile_FileInfo fileInfo;
+    int fd, handle;
+    uint16_t foundpath[30];
+
+    int size = sizeof(current_game) + sizeof(current_game->grid.data);
+    const int data_size = sizeof(uint8_t) * current_game->grid.width * current_game->grid.height;
+    uint8_t *data = malloc(data_size);
+    
+    char checkfile = BFile_FindFirst(filename, &handle, foundpath, &fileInfo);
+    BFile_FindClose(handle);
+
+    if (checkfile == -1) BFile_Create(filename, BFile_File, &size);
+    else 
+    {
+        fd = BFile_Open(filename, BFile_ReadOnly);
+        BFile_Read(fd, current_game, sizeof(current_game), 0);
+        BFile_Read(fd, data, data_size, -1);
+        BFile_Close(fd);
+        current_game->grid.data = data;
+    }
+}
+
+
+void write_save(const struct game *current_game)
+{
+    // Open file
+    int fd = BFile_Open(filename, BFile_WriteOnly);
+
+    // Write data
+    BFile_Write(fd, current_game, sizeof(current_game));
+    BFile_Write(fd, current_game->grid.data, sizeof(current_game->grid.data));
+    
+    // Close file
+    BFile_Close(fd);
+}

src/save.h

@@ -0,0 +1,12 @@
+#ifndef _SAVE_H
+#define _SAVE_H
+
+#include "core.h"
+
+// read_save : read or create a new save
+void read_save(struct game *current_game);
+
+// write_save : write the savefile
+void write_save(const struct game *current_game);
+
+#endif /* _SAVE_H */