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saving arrays
July 12, 2002 01:27 PM
how do i save a array to file and then load it back in c
i am using the game programming gurus book code.
i have made an array called
map[110][110] which holds all the map tile id and i want to save
it out and read it back
please help as i is sending my mad
211
July 12, 2002 01:45 PM
#include < fstream >using namespace std;fstream OutputFile;OutputFile.open("filename.bin");for (int i =0;i<ArraySize;i++) OutputFile.write(Data,4); //4 bytes for an int // OutputFile.read(Data,4);OutputFile.flush; //clear bufferOutputFile.close; Best check the syntax for read/write, I''m not sure about the parameters. Obviously in a 2D array, use 2 for loops OutputFile.write((Y*Width)+X,4).
,Jay
997
July 12, 2002 02:45 PM
Or specifically in C
This is done mostly from memory so there are probably some errors. Search the net for some of these functions for more help.
[edited by - GameCreator on July 12, 2002 3:46:11 PM]
/* Don't know how many of these you need */#include <stdio.h>#include <conio.h>void main(){ FILE *out, *in; int map[110][110]; int i, j; // Write the map to a file called file.map if((out = fopen("file.map","wb")) == NULL) { printf("Couldn't open file to write."); exit(1); } for(j=0; j<110; j++) for(i=0; i<110; i++) putc(out,map[j][i]); printf("Wrote map to file.\n"); // Read the map from a file called file.map if((in = fopen("file.map","rb")) == NULL) { printf("Couldn't open file to read."); exit(1); } for(j=0; j<110; j++) for(i=0; i<110; i++) map[j][i]=getc(in); printf("Read map from file.\n");} [edited by - GameCreator on July 12, 2002 3:46:11 PM]
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