player: implement manual pickup and descend confirmation

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Icd8d0ffd9bdf92f5c8943590886543566a6a6964

src/player.h

@@ -7,21 +7,30 @@
 void player_init(Player *p, int x, int y);
 
 // Move player, return 1 if moved/attacked, 0 if blocked
-int player_move(Player *p, int dx, int dy, Map *map, Enemy *enemies, int enemy_count, Item *items, int item_count);
+int player_move(Player *p, int dx, int dy, Map *map, Enemy *enemies, int enemy_count);
 
 // Player attacks enemy (deal damage)
 void player_attack(Player *p, Enemy *e);
 
-// Pick up item
-void player_pickup(Player *p, Item *i);
+// Get item at floor position (x, y), returns NULL if none
+Item *get_item_at_floor(Item *items, int count, int x, int y);
 
-// Use item
+// Pick up item, return 1 if successful, 0 if failed (full/invalid)
+int player_pickup(Player *p, Item *i);
+
+// Use item (potions only - weapons/armor are equipped)
 void player_use_item(Player *p, Item *i);
 
-// Use first available item in inventory, return 1 if used
+// Use first available potion in inventory, return 1 if used
 int player_use_first_item(Player *p);
 
 // Get item at inventory index, returns NULL if invalid
 Item *player_get_inventory_item(Player *p, int index);
 
+// Remove item from inventory at index (shifts remaining items)
+void player_remove_inventory_item(Player *p, int index);
+
+// Equip weapon/armor from inventory, return 1 if successful
+int player_equip_item(Player *p, int inv_index);
+
 #endif  // PLAYER_H