Question

I have a game that I have created. I want to implement a function that loads and saves high scores. At first when there is no text file (in my case highscore.txt), once created I want to print 0 to the file. If it is there on load I want it to load the highscore from the previous playing of the game. How would I go about this?

Here is my code:

void filewrite(){

    int n;

    FILE *FPtr;
    FPtr = fopen("highscore.txt","w+");//open file
    if (FPtr == NULL){
    fprintf (FPtr, "%d" , highscore);
    rewind(FPtr);
    }
    fscanf(FPtr,"%d",&n);//scan file for integer


    if (n < score){
        if(highscore < score ){
            if(end==true){
                fprintf (FPtr, "%d" , score);//print the score to file if it is higher than the score already there
                rewind(FPtr);//rewind the file, so pointer starts at begining
                fscanf(FPtr,"%d",&highscore);//scan file for int
            }
        }
    }

    fclose(FPtr);//close pointer to file

}

fopen seems to overwrite what was in the file already and leaves it blank

Answer 1

The steps you should take are:

• Try and open the file for reading.
• If that failed then open for writing, write 0, and then open for reading.
• Read the value in the file and test as needed.