[FL-1427] Dolphin: new assets and engine rework (#546)

applications/dolphin/scenes/assets/items.h

@@ -1,8 +1,14 @@
 #pragma once
 #include "dolphin/scenes/scene.h"
 
-#define ITEMS_NUM 4
+typedef enum {
+    ItemsFood,
+    ItemsConsole,
+    ItemsEnumTotal,
+} ItemsEnum;
 
+uint16_t roll_new(uint16_t prev, uint16_t max);
+const Vec2 item_get_pos(SceneState* state, ItemsEnum item);
 const Item* is_nearby(SceneState* state);
 const Item** get_scene(SceneState* state);
 const void scene_activate_item_callback(SceneState* state, Canvas* canvas);