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/* $Id$ */
/** @file highscore.cpp Definition of functions used for highscore handling */
#include "highscore.h"
#include "table/strings.h"
#include "settings_type.h"
#include "company_base.h"
#include "company_func.h"
#include "cheat_func.h"
#include "string_func.h"
#include "strings_func.h"
#include "table/strings.h"
#include "core/sort_func.hpp"
#include "variables.h"
#include "debug.h"
HighScore _highscore_table[5][5]; // 4 difficulty-settings (+ network); top 5
static const StringID _endgame_perf_titles[] = {
STR_0213_BUSINESSMAN,
STR_0213_BUSINESSMAN,
STR_0213_BUSINESSMAN,
STR_0213_BUSINESSMAN,
STR_0213_BUSINESSMAN,
STR_0214_ENTREPRENEUR,
STR_0214_ENTREPRENEUR,
STR_0215_INDUSTRIALIST,
STR_0215_INDUSTRIALIST,
STR_0216_CAPITALIST,
STR_0216_CAPITALIST,
STR_0217_MAGNATE,
STR_0217_MAGNATE,
STR_0218_MOGUL,
STR_0218_MOGUL,
STR_0219_TYCOON_OF_THE_CENTURY
};
StringID EndGameGetPerformanceTitleFromValue(uint value)
{
value = minu(value / 64, lengthof(_endgame_perf_titles) - 1);
return _endgame_perf_titles[value];
}
/** Save the highscore for the company */
int8 SaveHighScoreValue(const Company *c)
{
HighScore *hs = _highscore_table[_settings_game.difficulty.diff_level];
uint i;
uint16 score = c->old_economy[0].performance_history;
/* Exclude cheaters from the honour of being in the highscore table */
if (CheatHasBeenUsed()) return -1;
for (i = 0; i < lengthof(_highscore_table[0]); i++) {
/* You are in the TOP5. Move all values one down and save us there */
if (hs[i].score <= score) {
/* move all elements one down starting from the replaced one */
memmove(&hs[i + 1], &hs[i], sizeof(HighScore) * (lengthof(_highscore_table[0]) - i - 1));
SetDParam(0, c->index);
SetDParam(1, c->index);
GetString(hs[i].company, STR_HIGHSCORE_NAME, lastof(hs[i].company)); // get manager/company name string
hs[i].score = score;
hs[i].title = EndGameGetPerformanceTitleFromValue(score);
return i;
}
}
return -1; // too bad; we did not make it into the top5
}
/** Sort all companies given their performance */
static int CDECL HighScoreSorter(const Company * const *a, const Company * const *b)
{
return (*b)->old_economy[0].performance_history - (*a)->old_economy[0].performance_history;
}
/* Save the highscores in a network game when it has ended */
#define LAST_HS_ITEM lengthof(_highscore_table) - 1
int8 SaveHighScoreValueNetwork()
{
const Company *c;
const Company *cl[MAX_COMPANIES];
uint count = 0;
int8 company = -1;
/* Sort all active companies with the highest score first */
FOR_ALL_COMPANIES(c) cl[count++] = c;
QSortT(cl, count, &HighScoreSorter);
{
uint i;
memset(_highscore_table[LAST_HS_ITEM], 0, sizeof(_highscore_table[0]));
/* Copy over Top5 companies */
for (i = 0; i < lengthof(_highscore_table[LAST_HS_ITEM]) && i < count; i++) {
HighScore *hs = &_highscore_table[LAST_HS_ITEM][i];
SetDParam(0, cl[i]->index);
SetDParam(1, cl[i]->index);
GetString(hs->company, STR_HIGHSCORE_NAME, lastof(hs->company)); // get manager/company name string
hs->score = cl[i]->old_economy[0].performance_history;
hs->title = EndGameGetPerformanceTitleFromValue(hs->score);
/* get the ranking of the local company */
if (cl[i]->index == _local_company) company = i;
}
}
/* Add top5 companys to highscore table */
return company;
}
/** Save HighScore table to file */
void SaveToHighScore()
{
FILE *fp = fopen(_highscore_file, "wb");
if (fp != NULL) {
uint i;
HighScore *hs;
for (i = 0; i < LAST_HS_ITEM; i++) { // don't save network highscores
for (hs = _highscore_table[i]; hs != endof(_highscore_table[i]); hs++) {
/* First character is a command character, so strlen will fail on that */
byte length = min(sizeof(hs->company), StrEmpty(hs->company) ? 0 : (int)strlen(&hs->company[1]) + 1);
if (fwrite(&length, sizeof(length), 1, fp) != 1 || // write away string length
fwrite(hs->company, length, 1, fp) > 1 || // Yes... could be 0 bytes too
fwrite(&hs->score, sizeof(hs->score), 1, fp) != 1 ||
fwrite(" ", 2, 1, fp) != 1) { // XXX - placeholder for hs->title, not saved anymore; compatibility
DEBUG(misc, 1, "Could not save highscore.");
i = LAST_HS_ITEM;
break;
}
}
}
fclose(fp);
}
}
/** Initialize the highscore table to 0 and if any file exists, load in values */
void LoadFromHighScore()
{
FILE *fp = fopen(_highscore_file, "rb");
memset(_highscore_table, 0, sizeof(_highscore_table));
if (fp != NULL) {
uint i;
HighScore *hs;
for (i = 0; i < LAST_HS_ITEM; i++) { // don't load network highscores
for (hs = _highscore_table[i]; hs != endof(_highscore_table[i]); hs++) {
byte length;
if (fread(&length, sizeof(length), 1, fp) != 1 ||
fread(hs->company, length, 1, fp) > 1 || // Yes... could be 0 bytes too
fread(&hs->score, sizeof(hs->score), 1, fp) != 1 ||
fseek(fp, 2, SEEK_CUR) == -1) { // XXX - placeholder for hs->title, not saved anymore; compatibility
DEBUG(misc, 1, "Highscore corrupted");
i = LAST_HS_ITEM;
break;
}
*lastof(hs->company) = '\0';
hs->title = EndGameGetPerformanceTitleFromValue(hs->score);
}
}
fclose(fp);
}
}
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