Saving Files

[1v5E3TCk]

I am working on a text-based RPG game and I want to allow the player to save his progress. So I need to save several integers and a string. And my problem starts here "How can I save integers and load them?". I read the tutorial but I dont understand. Can anyone help me to learn or write me function to save game?

[18hRX9L8]

What you can do is print the values of the integers and strings using fprintf and then get the values back by scanning for them in order using fscanf.

fprintf: http://www.cplusplus.com/reference/cstdio/fprintf/
fscanf: http://www.cplusplus.com/reference/cstdio/fscanf/

[1v5E3TCk]

Thanks I will look it

[1v5E3TCk]

If I said I dont understand would you be angry with me? ):

[1v5E3TCk]

I got it Thanks

[Duthomhas]

Why do you keep advocating C stuff, particularly dangerous and difficult-for-beginners functions like fprintf() and fscanf()?

Particularly when it is easier to use the C++ methods?

struct player_t
  {
  int power_level;
  int hp;
  int gold_coins;
  ...

  void save_to_file( string filename ) const
    {
    ofstream f( filename.c_str() );
    f << power_level << endl;
    f << hp << endl;
    f << gold_coins << endl;
    }

  bool load_from_file( string filename )
    {
    ifstream f( filename.c_str() );
    f >> power_level;
    f >> hp;
    f >> gold_coins;
    return f.good();
    }
  };

player.save_to_file( "user_scores.txt" );

if (!player.load_from_file( "user_scores.txt" ))
  {
  showmessage( "Fooey, I could not restore your game!" );
  }

If you want to get fancy and use INI files for multiple players and the like (and you are on Windows), just #include <windows.h> and use the functions Disch explains here:
http://www.cplusplus.com/forum/beginner/30814/#msg166989

Hope this helps.

[1v5E3TCk]

Am I not need to include fstream?
And open and close the file?

I code like that:

#include <iostream>
#include <fstream>

using namespace std;

int main()
{
    string x = "Arda";
    string y;
    int a = 5;
    int b;
    int c = 10;
    int d;

    ofstream deneme;
    ifstream denemex;

    deneme.open ( "deneme.dat", ios::binary );

    deneme.write((char*)&x, sizeof(string));
    deneme.write((char*)&a, sizeof(int));
    deneme.write((char*)&c, sizeof(int));

    deneme.close();

    denemex.open ( "deneme.dat", ios::binary );



    denemex.read((char*)&y, sizeof(string));
    denemex.read((char*)&b, sizeof(int));
    denemex.read((char*)&d, sizeof(int));

    denemex.close();


    cout<< y;
    cout<< b;
    cout<< d;

    return 0;
}

[1v5E3TCk]

I got it you wrote a structure

[1v5E3TCk]

Okey I code 2 functions, one for saving and one for loading. But when I try to save the program stops. And when I look into save file there are blank lines.
When I try to load game ıt doesnt load after 6.line.

func_savegame()

void func_savegame()
{
    ofstream save( wrath.c_str());

    save << player.name << endl;

    save << player.equip.weapon.name << endl;
    save << player.equip.weapon.attck << endl;
    save << player.equip.weapon.defense << endl;
    save << player.equip.weapon.magic << endl;
    save << player.equip.weapon.price << endl;
    save << player.equip.weapon.type << endl;

    save << player.equip.armor.name << endl;
    save << player.equip.armor.attck << endl;
    save << player.equip.armor.defense << endl;
    save << player.equip.armor.magic << endl;
    save << player.equip.armor.price << endl;
    save << player.equip.armor.type << endl;

    save << player.equip.shield.name << endl;
    save << player.equip.shield.attck << endl;
    save << player.equip.shield.defense << endl;
    save << player.equip.shield.magic << endl;
    save << player.equip.shield.price << endl;
    save << player.equip.shield.type << endl;

    save << player.level << endl;
    save << player.level_hp << endl;
    save << player.level_mp << endl;
    save << player.level_attck << endl;

    save << player.equip_hp << endl;
    save << player.curr_hp << endl;
    save << player.max_hp << endl;

    save << player.equip_mp << endl;
    save << player.curr_mp << endl;
    save << player.max_mp << endl;

    save << player.curr_attck << endl;
    save << player.equip_attck << endl;

    save << player.curr_exp << endl;
    save << player.max_exp << endl;

    save << player.max_temper << endl;
    save << player.curr_temper << endl;

    save << player.stats << endl;
    save << player.sp << endl;

    for( int i = 0; i < 10; ++i )
    {
        save << player.skills[ i ].name << endl;
        save << player.skills[ i ].attck << endl;
        save << player.skills[ i ].defense << endl;
        save << player.skills[ i ].magic << endl;
        save << player.skills[ i ].time << endl;
        save << player.skills[ i ].learn << endl;
    }

    for( int i = 0; i < 10; ++i)
    {
        save << player.num_pot[ i ] << endl;
    }

    save << player.gold << endl;

    for( int i = 0; i < 10; ++i)
    {
        save << player.inventory[ i ].name << endl;
        save << player.inventory[ i ].price << endl;
        save << player.inventory[ i ].attck << endl;
        save << player.inventory[ i ].defense << endl;
        save << player.inventory[ i ].magic << endl;
        save << player.inventory[ i ].type << endl;
    }

    save << player.type << endl;

    save << chapter << endl;
}

func_loadgame()

bool func_loadgame()
{

    ifstream load( wrath.c_str());

    getline( load, player.name);

    getline( load, player.equip.weapon.name);
    load >> player.equip.weapon.attck;
    load >> player.equip.weapon.defense;
    load >> player.equip.weapon.magic;
    load >> player.equip.weapon.price;
    load >> player.equip.weapon.type;

    getline(load, player.equip.armor.name);
    load >> player.equip.armor.attck;
    load >> player.equip.armor.defense;
    load >> player.equip.armor.magic;
    load >> player.equip.armor.price;
    load >> player.equip.armor.type;

    getline(load, player.equip.shield.name);
    load >> player.equip.shield.attck;
    load >> player.equip.shield.defense;
    load >> player.equip.shield.magic;
    load >> player.equip.shield.price;
    load >> player.equip.shield.type;

    load >> player.level;
    load >> player.level_hp;
    load >> player.level_mp;
    load >> player.level_attck;
    load >> player.equip_hp;
    load >> player.curr_hp;
    load >> player.max_hp;
    load >> player.equip_mp;
    load >> player.curr_mp;
    load >> player.max_mp;
    load >> player.curr_attck;
    load >> player.equip_attck;
    load >> player.curr_exp;
    load >> player.max_exp;
    load >> player.max_temper;
    load >> player.curr_temper;
    load >> player.stats;
    load >> player.sp;

    for( int i = 0; i < 10; ++i )
    {
        getline( load, player.skills[ i ].name);
        load >> player.skills[ i ].attck;
        load >> player.skills[ i ].defense;
        load >> player.skills[ i ].magic;
        load >> player.skills[ i ].time;
        load >> player.skills[ i ].learn;
    }

    for( int i = 0; i < 10; ++i)
    {
        load >> player.num_pot[ i ];
    }

    load >> player.gold;

    for( int i = 0; i < 10; ++i)
    {
        getline(load, player.inventory[ i ].name);
        load >> player.inventory[ i ].price;
        load >> player.inventory[ i ].attck;
        load >> player.inventory[ i ].defense;
        load >> player.inventory[ i ].magic;
        load >> player.inventory[ i ].type;
    }

    load >> player.type;

    load >> chapter;

    return load.good();
}

Save File

arda
Broken sword
5
0
4
0
1
Damaged armor
0
3
3
0
2
Damaged shield
0
2
0
0
3
1
25
10
5
5
30
30
7
17
17
10
5
55
220
100
5
0
0
0
0
0

0
0
100
0
100
Fast Fist
0
1
0
0
10
Stunning
1
0
0
0
20
Iron Wall
1
0
80
0
30
Blade Rush
0
0
0
0
0	

0
0
0
0
0

0
0
0
0
0

0
0
0
0
0

0
0
0
0
0

0
0
10
3
3
0
0
0
0
0
0
0
7
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
none
0
0
0
0
0
1
1