My .dat Modifier program.

Hello, i have done this program in about 5 minutes. I was trying to modify a .dat file to actually (Basic hack) a small game called Cave story.

Here's the code if anyone is curious about .dat files .

Code:

#include <iostream>
#include <fstream>

using namespace std;


struct CaveStoryDat
{
	int str[50];
};

int main()
{
	CaveStoryDat dat;

	int choice = 0;
	int value = 0;
	int number = 0;

	int foundvalues[50];

	ifstream filer;
	ofstream filew;

	filer.open("Profile.dat", ios::binary);
	filer.read((char*)&dat, sizeof(CaveStoryDat));
	filer.close();


	while(1)
	{

		system("cls");

		for(int i = 0; i < 50; i++)
		{
			cout << i <<"| "<<dat.str[i]<<" | "<<endl;
		}

		cout <<"\n\n\n";

		cout <<"1.Search values."<<endl;
		cout <<"2.Modify values."<<endl;
		cout <<"3.Save File."<<endl;
		cout <<"4.Reload file."<<endl;

		cin >> choice;
		cin.get();

		switch(choice)
		{

		case 1:
			system("cls");
			cout <<"Exact value?: "<<endl;
			cin >> value;
			cin.get();
			system("cls");
			for(int i = 0; i < 50; i++)
			{
				if(dat.str[i] == value)
				{
					foundvalues[i] = dat.str[i];
				}

			}

			for(int i = 0; i < 50; i++)
			{
				if(foundvalues[i] == value)
				{
					cout << i <<"| "<<foundvalues[i]<<" | "<<endl;
				}

			}

			choice = 0;
			cin.get();
			break;


		case 2:

			cout <<"Number?: ";
			cin >> number;

			cin.get();
			system("cls");

			cout <<"Value: "<<dat.str[number]<<endl;
			cout <<"Modify it's value to?: "<<endl;
			cin >> value;
			cin.get();

			dat.str[number] = value;

			break;


		case 3:

			filew.open("Profile.dat", ios::binary);
			filew.write((char*)&dat, sizeof(CaveStoryDat));
			filew.close();

		case 4:
			filer.open("Profile.dat", ios::binary);
			filer.read((char*)&dat, sizeof(CaveStoryDat));
			filer.close();


		}




	}

	return 0;

}

You do realize that any file can contain any data, and that extensions do not tell what kind of data will be in the file? extensions are used to associate files with software(at least in windows).

Originally Posted by kevinawad

Here's the code if anyone is curious about .dat files .

lern2research

Originally Posted by Raigne

You do realize that any file can contain any data, and that extensions do not tell what kind of data will be in the file? extensions are used to associate files with software(at least in windows).

I know you are a Windows guy, Raigne. Just so you are aware, in Linux, Unix and MacOSX the OS just uses the file headers to determine the type.

I stand corrected in one aspect then. I apologize OP

Its unfortunate that windows doesn't just use file headers to determine type. So many viri could be twarted....

Many existing virus's could be stopped, but the way windows is it would open the door for a million more.

True. Knowing Microsoft, if it encountered a .vs file it would just start executing it during the reading the file-header process.

I meant binary data reader :P. Forgot to say so.

Most of the games use binary to save game files. You can read it with any Hex editor. But, you can also read it with a sample fstream function.

Speak for yourself, I read binary all the time...

, first time having to do anything with binary files.

It's great that i learned one more thing about the computer.

There are some issues with binary files that you will discover one day. But for today, I will let you enjoy the glory

There are some issues with binary files that you will discover one day

If you don't know about the issues ahead of time.