[Resolved] maps for 2d games

[McCain]

I'm trying to use a simple map writen in a txt file in my game but I can't get it to work.

I have an array of integers: int iMap[10][10];
And then I read in numbers from a txt file useing for loops and useing iMap[x][y] = fin.get()

Here's my problem; When reading the file like this it puts all tbe '/n' in the array as well so I have to have the whole map on one line in the txt file. I would like to have it 10 by 10 in the file as well. How can I tell fin.get() to ignore all linebreaks in the txt file?

[SteveCRM]

make 2 for loops
one to handle x, and one for y

for(int y=0; y<10; y++)
{
for(int x=0; x<10; x++)
{
assign to myarray[x][y]
}
}

[Zaei]

Steve, you didnt answer the question =P.

Its actually pretty simple... dont use f.get(). Instead, use the stream operator, like you would if reading an integer from cin. It will use the line feed as a terminator, and move to the next line.

Z.

[McCain]

So I would go fin >> iMap[x][y] ?

[CornedBee]

Can you show us an example file?

[McCain]

The text (map) file looks like this:

1111111111
1000000001
1000000001
1000000001
1000000001
1000000001
1000000001
1000000001
1000000001
1111111111

And in my source I have:

ifstream fin;
char chrMap[10][10];

fin.open("map.txt");

for(int x = 0; x < 10; x++)
{
	for(int y = 0; y < 10; y++)
	{
		fin >> chrMap[x][y];
	}
}

And this works pretty well but I want the array to be an integer array and if I just declare it int iMap[10][10]; I get some crazy stuff in that array (stuff like -858993460)... Why does this happen?

[CornedBee]

Because it reads a whole line at once...

Here's what you could do, but it's more C-like, which is why I use the C io functions:

#include <stdio.h>
#include <ctype.h>

FILE *fin;
char chrMap[10][10];
char c;
int x, y;

fin = fopen("map.txt", "rt");
// note the inversed!
for(y=0;y<10;++y) {
  for(x=0;x<10;++x) {
    do {
      c = fgetc(fin);
    } while(!isdigit(c));
    chrMap[x][y] = c - '0';
  }
}