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/* xsoldier, a shoot 'em up game with "not shooting" bonus
* Copyright (C) 1997 Yuusuke HASHIMOTO <s945750@educ.info.kanagawa-u.ac.jp>
* Copyright (C) 2002 Oohara Yuuma <oohara@libra.interq.or.jp>
*
* This is a copyleft program. See the file LICENSE for details.
*/
/* $Id: score.c,v 1.11 2011/08/12 14:29:02 oohara Exp $ */
/* DEBUG and DUPSCORE are defined in config.h */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
*/
/* strcmp */
#include <string.h>
/* isprint */
#include <ctype.h>
#include "image.h"
#include "xsoldier.h"
#include "extern.h"
#include "score.h"
static void fake_score_entry(Record *rec, int n, int score);
static void copy_Record_to_PlayerData(Record *rec, PlayerData *p);
static int compare_entry(const void *a, const void *b);
/* read entries from high score file and save them in p
* returns 0 on success, -1 on error
*/
int ReadHiscore(PlayerData *p)
{
FILE *fp;
char buff[BUFSIZ];
Record rec[10];
int i;
int j;
int status = 0;
char name[32];
int score;
int loop;
int stage;
/* initialize the entries with random records */
for (i = 0; i <= 9; i++)
fake_score_entry(rec, i, (11 - i) * 10000);
/* open the score file */
if ((fp = fopen(SCORE "/" SCOREFILE, "r")) == NULL)
{
fprintf(stderr,"ReadHiscore: can not open score file\n");
copy_Record_to_PlayerData(rec, p);
return -1;
}
/* read each record --- one line for one record */
for (i = 0; (i <= 9) && (fgets(buff, BUFSIZ, fp) != NULL); i++)
{
if (sscanf(buff, "%d %d %d %31s", &score, &loop, &stage, name) == 4)
{
rec[i].score = score;
rec[i].loop = loop;
rec[i].stage = stage;
/* check if the player name consists of only printable chars */
for (j = 0; (j <= sizeof(name)/sizeof(name[0]) - 1) && (name[j] != '\0'); j++)
if (!isprint(name[j]))
{
fprintf(stderr, "warning: non-printable char found in the name of "
"entry %d, char %d (\\x%x), replacing it with ?\n",
i + 1, j, name[j]);
name[j] = '?';
}
strncpy(rec[i].name, name, sizeof(rec[i].name)/sizeof(rec[i].name[0]));
#ifdef DEBUG
fprintf(stderr, "entry %d read: %d %d %d %s\n", i + 1, rec[i].score,
rec[i].loop, rec[i].stage, rec[i].name);
#endif /* DEBUG */
}
else
{
fprintf(stderr, "warning: entry %d of the high score file is "
"broken so ignored\n", i + 1);
status = -1;
}
}
/* close the score file */
if (fclose(fp) == EOF)
{
fprintf(stderr, "ReadHiscore: can't close the score file\n");
status = -1;
}
/* warn if there are only 9 or less entries */
if (i != 10)
{
fprintf(stderr, "warning: the score file has only %d ", i);
/* plural hack */
if (i >= 2)
fprintf(stderr, " entries\n");
else
fprintf(stderr, " entry\n");
status = -1;
}
/* sort the entries */
qsort(rec, 10, sizeof(Record), compare_entry);
copy_Record_to_PlayerData(rec, p);
return status;
}
/* checks if the score of the current player can be in the high score list
* and merge if necessary
* assumes p is already sorted
* returns the rank of the current player is s/he gets in the list,
* -1 if out of the list
*/
int MergeHiscore(PlayerData *p)
{
int rank = -1;
int del = 10;
int i;
#ifndef DUPSCORE
size_t temp;
#endif /* not DUPSCORE */
/* ugly hack to cope with a braindamage
* this is necessary so that we can check the score correctly
* even if the player quit the game with q key
*/
p->Rec[0].loop = manage->Loop;
p->Rec[0].stage = manage->Stage;
#ifndef DUPSCORE
/* check if a entry with the same name is already in the list
* if there is, find the highest one
*/
for (i = 1; i <= 10; i++)
{
temp = sizeof(p->Rec[0].name)/sizeof(p->Rec[0].name[0]);
if (temp > sizeof(p->Rec[i].name)/sizeof(p->Rec[i].name[0]))
temp = sizeof(p->Rec[i].name)/sizeof(p->Rec[i].name[0]);
if (strncmp(p->Rec[0].name, p->Rec[i].name, temp) == 0)
{
del = i;
break;
}
}
#endif /* not DUPSCORE */
/* p is already sorted */
for (i = 1; i<=10; i++)
{
if (p->Rec[0].score > p->Rec[i].score)
{
rank = i;
break;
}
}
/* if the current player is out of the top 10 */
if (rank == -1)
return -1;
#ifndef DUPSCORE
/* if there is already an entry with the same name and a better score */
if (rank > del)
return -1;
#endif /* not DUPSCORE */
/* merge the score of the current player */
for (i = del; i > rank; i--)
{
#ifdef DEBUG
printf("rank[%d] <- rank[%d]\n", i, i - 1);
#endif
p->Rec[i].score = p->Rec[i - 1].score;
p->Rec[i].loop = p->Rec[i - 1].loop;
p->Rec[i].stage = p->Rec[i - 1].stage;
strncpy(p->Rec[i].name, p->Rec[i - 1].name, sizeof(p->Rec[i].name)/sizeof(p->Rec[i].name[0]));
}
#ifdef DEBUG
printf("rank[%d] <- rank[0]\n", rank);
fprintf(stderr, "%d %d %d %s\n", p->Rec[0].score, p->Rec[0].loop,
p->Rec[0].stage, p->Rec[0].name);
#endif
p->Rec[rank].score = p->Rec[0].score;
p->Rec[rank].loop = p->Rec[0].loop;
p->Rec[rank].stage = p->Rec[0].stage;
strncpy(p->Rec[rank].name, p->Rec[0].name, sizeof(p->Rec[rank].name)/sizeof(p->Rec[rank].name[0]));
return rank;
}
/* write the high score list to the disk
* return 0 on success, -1 on failure
*/
int WriteHiscore(PlayerData *p)
{
FILE *fp;
int i;
int status = 0;
/* open the score file */
if ((fp = fopen(SCORE "/" SCOREFILE,"w")) == NULL)
{
fprintf(stderr,"WriteHiscore: can not open score file\n");
return -1;
}
/* write to the disk */
for (i = 1; i <= 10; i++)
{
if (fprintf(fp, "%d %d %d %s\n", p->Rec[i].score, p->Rec[i].loop,
p->Rec[i].stage, p->Rec[i].name) < 0)
{
fprintf(stderr, "WriteHiscore: can not write the score file\n");
fprintf(stderr, "failed entry:\n");
fprintf(stderr, "%d %d %d %s\n", p->Rec[i].score, p->Rec[i].loop,
p->Rec[i].stage, p->Rec[i].name);
status = -1;
}
}
/* close the score file */
if (fclose(fp) == EOF)
{
fprintf(stderr, "WriteHiscore: can't close the score file\n");
status = -1;
}
return status;
}
/* generate a fake record for the high score list
* note that rec begins with 0
*/
static void fake_score_entry(Record *rec, int n, int score)
{
rec[n].score = score;
rec[n].loop = (10 - n) / 3;
if (rec[n].loop < 1)
rec[n].loop = 1;
rec[n].stage = rand() % 8 + 1;
snprintf(rec[n].name, sizeof(rec[n].name)/sizeof(rec[n].name[0]) - 1, "(unknown)");
}
static void copy_Record_to_PlayerData(Record *rec, PlayerData *p)
{
int i;
for (i = 1; i <= 10; i++)
p->Rec[i] = rec[i - 1];
}
static int compare_entry(const void *a, const void *b)
{
const Record *rec_a = (const Record *) a;
const Record *rec_b = (const Record *) b;
if (rec_a->score > rec_b->score)
return -1;
if (rec_a->score < rec_b->score)
return 1;
if (rec_a->loop > rec_b->loop)
return -1;
if (rec_a->loop < rec_b->loop)
return 1;
if (rec_a->stage > rec_b->stage)
return -1;
if (rec_a->stage < rec_b->stage)
return 1;
return strcmp (rec_a->name, rec_b->name);
}
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