write world cell backwards

1 files changed, 9 insertions, 2 deletions

diff --git a/src/world.c b/src/world.c
index 3c026d2..babac9b 100644
--- a/src/world.c
+++ b/src/world.c
@@ -51,6 +51,14 @@ world_destroy(World *this)
 	free(this);
 }
 
+static void
+_recursive_write(FILE *fp, Cell *cell)
+{
+	if (cell->next != NULL)
+		_recursive_write(fp, cell->next);
+	fprintf(fp, "%d,%d,%d\n", cell->id, cell->x, cell->y);
+}
+
 int
 world_write(World *this, const char *path)
 {
@@ -64,8 +72,7 @@ world_write(World *this, const char *path)
 	}
 
 	fprintf(fp, "%d,%d,%d\n", world_cell_count(this), this->x, this->y);
-	foreach(cell, this->root_cell)
-		fprintf(fp, "%d,%d,%d\n", cell->id, cell->x, cell->y);
+	_recursive_write(fp, this->root_cell);
 
 	fclose(fp);
 	return 0;