Optimize Equipment Problem

var pieces = ["right", "left", "head", "body", "legs", "accessory"]
for piece in pieces:
    print(piece)
    var best_piece = []
    var stat = ""

    for item in PlayerStuff.pms[selected_pm].inv.size():
        if (PlayerStuff.pms[selected_pm].inv[item] is Weapon and piece in ["right", "left"]) or (ImportantStuff.var_type_in_array(PlayerStuff.pms[selected_pm].inv[item], [Head, Body, Legs, Accessory]) and piece in ["head", "body", "legs", "accessory"]):
            best_piece.append(item)

    match piece:
        "right", "left":
            stat = "atk"
            best_piece.sort_custom(self, "sort_hands")
        _:
            stat = "def"
            best_piece.sort_custom(self, "sort_armor")

    if best_piece.size() >= 1:
        if PlayerStuff.pms[selected_pm].equipment[piece] != null and PlayerStuff.pms[selected_pm].inv[best_piece[0]].get(stat) > PlayerStuff.pms[selected_pm].equipment[piece].get(stat):
            if piece != "left" and !PlayerStuff.pms[selected_pm].equipment.right.two_handed:
                    PlayerStuff.pms[selected_pm].inv.append(PlayerStuff.pms[selected_pm].equipment[piece])
                    PlayerStuff.pms[selected_pm].equipment[piece] = PlayerStuff.pms[selected_pm].inv[best_piece[0]]
                    PlayerStuff.pms[selected_pm].equipment[piece] = PlayerStuff.pms[selected_pm].inv[best_piece[0]]
                    PlayerStuff.pms[selected_pm].inv.remove(best_piece[0])
            else:
                PlayerStuff.pms[selected_pm].inv.append(PlayerStuff.pms[selected_pm].equipment[piece])
                PlayerStuff.pms[selected_pm].equipment[piece] = PlayerStuff.pms[selected_pm].inv[best_piece[0]]
                PlayerStuff.pms[selected_pm].equipment[piece] = PlayerStuff.pms[selected_pm].inv[best_piece[0]]
                PlayerStuff.pms[selected_pm].inv.remove(best_piece[0])
        else:
            if piece != "left":
                if !PlayerStuff.pms[selected_pm].equipment.right != null and !PlayerStuff.pms[selected_pm].equipment.right.two_handed:
                    PlayerStuff.pms[selected_pm].equipment[piece] = PlayerStuff.pms[selected_pm].inv[best_piece[0]]
                        PlayerStuff.pms[selected_pm].inv.remove(best_piece[0])