X-Git-Url: https://plomlompom.com/repos/foo.html?a=blobdiff_plain;f=src%2Fmisc.c;h=9c555c926a83dd2a624945d83942bd19f8d52e73;hb=d3aa2e286a18a58c97893c6c60c924af6f4e190d;hp=883325289475b850a3814c213262a262806bb645;hpb=bf8a2dfe44c539f4c9003918320e91dcd0f79917;p=plomrogue
diff --git a/src/misc.c b/src/misc.c
index 8833252..9c555c9 100644
--- a/src/misc.c
+++ b/src/misc.c
@@ -1,6 +1,8 @@
/* misc.c */
#include "misc.h"
+#include /* for rename() */
+#include /* for unlink(), acess() */
#include /* for calloc(), free() */
#include /* for strlen(), strcmp(), memcpy() */
#include /* for uint8_t */
@@ -133,22 +135,32 @@ extern void turn_over(struct World * world, char action)
extern void save_game(struct World * world)
{
- uint8_t err = 0;
- char * err_msg = "Error saving game.";
-
- FILE * file = fopen("savefile", "w");
- // err = (0 == file);
- exit_err(0 == file, world, err_msg);
-
- err = write_uint32_bigendian(world->seed, file);
- err = err | write_uint32_bigendian(world->turn, file);
- err = err | write_uint16_bigendian(world->player->pos.y + 1, file);
- err = err | write_uint16_bigendian(world->player->pos.x + 1, file);
- err = err | write_uint8(world->player->hitpoints, file);
- err = err | write_map_objects(world, world->monster, file);
- err = err | write_map_objects(world, world->item, file);
- exit_err(err, world, err_msg);
- fclose(file);
+ char * savefile_tmp = "savefile_tmp";
+ char * savefile = "savefile";
+ FILE * file = fopen(savefile_tmp, "w");
+ exit_err(0 == file, world,
+ "Error saving game: Unable to open new savefile for writing.");
+ if ( write_uint32_bigendian(world->seed, file)
+ || write_uint32_bigendian(world->turn, file)
+ || write_uint16_bigendian(world->player->pos.y + 1, file)
+ || write_uint16_bigendian(world->player->pos.x + 1, file)
+ || write_uint8(world->player->hitpoints, file)
+ || write_map_objects(world, world->monster, file)
+ || write_map_objects(world, world->item, file))
+ {
+ exit_err(1, world,
+ "Error saving game: Trouble writing to opened new savefile.");
+ }
+ exit_err(fclose(file), world,
+ "Error saving game: Unable to close opened new savefile.");
+ if (!access(savefile, F_OK))
+ {
+ exit_err(unlink(savefile), world,
+ "Error saving game: Unable to unlink old savefile.");
+ }
+ exit_err(rename(savefile_tmp, savefile), world,
+ "Error saving game: Unable to rename 'savefile_tmp' to "
+ "'savefile'.");
}