#include	<stdio.h>
#include	"gene.h"

FILE	*DataFile;
extern	char	*DataFileName;
extern	gene_type	*GeneTable;
extern	int	PopulationSize;

htoi(c)
char	c;
{
	if ('0' <= c && c <= '9') return c - '0';
	else if ('A' <= c && c <= 'F') return c - 'A' + 10;
	else if ('a' <= c && c <= 'f') return c - 'a' + 10;
}

void b_load()
{
	int	i, j;
	char	buf[1300];
	fseek(DataFile, 0L, 0);
	for (i = 0; i < PopulationSize && fgets(buf,1300,DataFile); i++)
	for (j = 0; j < GeneLen; j ++)
	GeneTable[i].gene[j] = (htoi(buf[j*3]) << 4) + htoi(buf[j*3+1]);
}

void b_save()
{
	int	i, j;
	fseek(DataFile, 0L, 0);
	for (i = 0; i < PopulationSize; i ++)
		for (j = 0; j < GeneLen; j ++)
			fprintf(DataFile,"%x%c",GeneTable[i].gene[j],
			((j<GeneLen-1)?':':'\n'));
	fflush(DataFile);
}

data_init()
{
	if (DataFile = fopen(DataFileName,"r+")) b_load();
	else if (DataFile = fopen(DataFileName,"w+"))
		fprintf(stderr,"%s: new file created.\n",DataFileName);
	else {
		perror(DataFileName);
		exit(1);
	}
}