alfgen 0.0.1

// Argon Level Format Map Generator

#include <stdio.h>

#define ARG_VERSION 0x01

void alf_WriteHeader (FILE *file)
{
	char buf [5] = {0};
	char *bufp = buf;

	*bufp = ARG_VERSION;
	bufp ++;
	*((int*)bufp) = 0;

	fwrite (buf, 1, 5, file);

	return;
}

int numrooms = 0;
void alf_WriteRoomHeader (FILE *file, short x, short y, short flags)
{
	char buf [6] = {0};
	char *bufp = buf;

	*((short*)bufp) = x;
	*((short*)bufp) = y;
	*((short*)bufp) = flags;

	numrooms ++;
	fwrite (buf, 2, 3, file);

	return;
}

int numblocks = 0;
void alf_WriteBlock (FILE *file, char tileset)
{
	printf ("%i", (int)tileset);
	numblocks ++;

	if (!(numblocks % 16))
		printf ("\n");

	fwrite (&tileset, 1, 1, file);
	return;
}

int main (int argc, char **argv)
{
	char *date = __DATE__;
	char inc;
	FILE *in = NULL, *out = NULL;

	printf ("alf generator version 0.0.1 compiled on %s\n", date);

	if (argc < 3)
	{
		printf ("usage: alfgen <input> <output>\n");
		return 1;
	}

	in = fopen (argv [1], "r");
	out = fopen (argv [2], "w");

	if (!in)
	{
		printf ("error: couldn't open input file %s\n", argv [1]);
		return 1;
	}

	if (!out)
	{
		printf ("error: couldn't open output file %s\n", argv [2]);
		return 1;
	}

	alf_WriteHeader (out);
	alf_WriteRoomHeader (out, 0, 0, 0);

	while ((inc = fgetc (in)) != EOF)
	{
		if (inc == '+')
			alf_WriteBlock (out, 1);
		else if (inc == '-')
			alf_WriteBlock (out, 0);
	}

	printf ("success: wrote %i rooms and %i blocks to %s\n", numrooms, numblocks, argv [2]);

	return 0;
}