Refactor - Moved shop data structures to shop.c/.h (#521)

* Moved shop data structures to `shop.c/.h`

* Renamed static variables and reset function

include/game.h

@@ -1,7 +1,6 @@
 #ifndef GAME_H
 #define GAME_H
 
-#include "bitset.h"
 #include "game/common_ui.h"
 #include "game_variables.h"
 #include "graphic_utils.h"
@@ -89,9 +88,6 @@ void remove_owned_joker(int owned_joker_idx);
 List* get_jokers_list(void);
 List* get_expired_jokers_list(void);
 List* get_discarded_jokers_list(void);
-List* get_shop_jokers_list(void);
-Bitset* get_avail_jokers_bitset(void);
-void set_shop_joker_avail(int joker_id, bool avail);
 
 int get_deck_top(void);
 int get_num_discards_remaining(void);

include/game/shop.h

@@ -6,6 +6,22 @@
 #ifndef GAME_SHOP_H
 #define GAME_SHOP_H
 
+#include <stdbool.h>
+
+/**
+ * @brief Initialize the shop for a run.
+ * Resets all the shop data for the run, needs to be called once per run.
+ */
+void game_shop_reset(void);
+
+/**
+ * @brief Set whether a Joker can appear in the shop.
+ *
+ * @param avail - true to make it available to the shop to appear in
+ *                false to make it unavailable.
+ */
+void game_shop_set_joker_avail(int joker_id, bool avail);
+
 /**
  * @brief Change to the shop background
  */