Thread: How to store an array in a file?

  1. #1
    Registered User
    Join Date
    Nov 2003

    How to store an array in a file?

    Okay, I have a game with a structure that holds all the player information. I've figured out how to save and load the basic variable types, but I've run into trouble with an array I've added to the player structure. Here's the code I use to save:

    void CFightOMaticDlg::SaveGame()
    	CFile file(_T(m_sPlayer_Name), CFile::modeCreate|CFile::modeWrite);	
    	CArchive ar(&file , CArchive::store);
    	ar << m_sPlayer_Name << Player.m_iHealth << Player.m_iHealth_Max << Player.m_iGold << Player.m_iExperience
    		<< Player.m_iPlayer_Level << Player.m_iStrength << Player.m_iDefense << Player.m_sWeapon_Name << Player.m_iWeapon_Damage
    		<< Player.m_sArmor_Name << Player.m_iArmor_Damage << Player.m_iWeapon_Damage_Roll << Player.m_bPlayer_Can_Camp
    		<< Player.m_iaPlayer_Inventory_Last_Spot;
    And the code for loading is of course pretty much the same. The variable I need to store is called Player.m_iaPlayer_Inventory[]

  2. #2
    Registered User
    Join Date
    Apr 2002
    A simple solution would be to output the number of items in the array and then output each element. That way when you are loading you will know how many elements to read right away.
    "...the results are undefined, and we all know what "undefined" means: it means it works during development, it works during testing, and it blows up in your most important customers' faces." --Scott Meyers

  3. #3
    Registered User
    Join Date
    Nov 2003
    I'm not sure what you mean by output,
    the elements in the array I want to save hold an int that is the id of an item structure.
    The variable Player.m_iaPlayer_Inventory_Last_Spot is an int that tells me the first empty spot in the array.
    The maximum elements that could be in the array is 11. I use this information to fill a ListBox in the rest of the program.
    Last edited by Burlock; 12-14-2003 at 02:56 AM.

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