Writing a .lvl file

[»Maverick]

-*BAD WORD*-o everybody,

 

I got a problem. I am trying to make a bot which is able to write a .lvl file. I have found the .lvl file format here. ( <-- Click on 'here')

 

This is what I got so far and I thought would work

 

 	if (c->check("makefile")) {
   int tile = 5;
   int x = 5;
   int y = 5;

   fstream myFile ("test.lvl", ios::in | ios::out | ios::binary);
   myFile.write ((char *)&tile, 8);
   myFile.write ((char *)&y, 12);
   myFile.write ((char *)&x, 12);
   myFile.close();
 	}

 

but SSME doesn't accept it.

 

http://home.hccnet.nl/ton.werdler/ssme%20error.png

 

 

 

Can someone help me with this?

 

Thanks

-MMaverick

[»Maverick]

Hmmm. 50% Packetloss told me of this link:

http://www.forumhq.net/forums/index.php?showtopic=548

 

Though it only has a piece of code on how to read a .lvl file, not to write them. He also informed me of the map.h file of Mervbot, it has the following functions:

 

Uint32 getLinear(Uint32 x, Uint32 y);       	 // Convert rectangular coords to linear coords

struct tileData
{
Uint16 x, y;              // Coordinates
BYTE type;             	 // Type
};

Sint32 getNumeric(Sint32 y);
char getAlpha(Sint32 x);
String getCoords(Sint32 x, Sint32 y);

tileData makeTileData(Uint32 raw);          // File data is in blocks of 32 bits
Uint32 makeTileData(Uint16 x, Uint16 y, BYTE type);      // Produce just such a block

void convertFileToMatrix(char *fileData, char *mapData, Uint32 len);	// Convert from disk to memory format

Uint32 getMapSize(char *mapData);          // Retrieve the length of the map on disk
void convertMatrixToFile(char *mapData, char *_fileData);    // Convert the map to disk format

 

I don't know how to do the job with these functions.

 

Any help is appreciated

 

-MMaverick

[»SOS]

The problem is that the lengths are supposed to be in bits but your writing code has them in bytes. Either do some bit-shifting or stick em in a bit-ized struct.

By the way, did you notice that your { accidentally got on the first line instaed of the second one?

[»Maverick]

hmmm.. Can I write a whole struct with the same .write(..) statement?

 

That { on the first line is my style of programming, I don't like to waste space so I always put { right after the statement

 

-MMaverick

[50% Packetloss]

#include <fstream.h>
typedef unsigned long  Uint32;

int main ()
{ 
char buf[4];//the char array
Uint32 *data=(Uint32*)buf;//pointer to the array

int tile=1;//info we want in file
int x=5;
int y=5;

ofstream file("test.lvl", ios::binary);//open a file in binary mode

if (file.good())//if the file open was successful
{
 *data = ((tile & 0xFF) << 24) | ((y & 0x3FF) << 12) | (x & 0x3FF);
//^^^^--pushes data into the array, If you know the data is good then you dont need the bitwise &
 file.write(buf, 4);//write
}

file.close();
return 0;
}

[»Maverick]

 

Thanks alot 50% Packetloss

:swift::swift::swift::swift::swift::swift::swift::swift::swi

ft::swift::swift::swift::swift::swift::swift:

 

-MMaverick

[50% Packetloss]

<3