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/*
* Seven Kingdoms: Ancient Adversaries
*
* Copyright 2019 Steven Lavoie
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
//Filename : PlayerStats.cpp
//Description : Handles file IO for player statistics information
#include <PlayerStats.h>
#include <OSYS.h>
extern Sys sys; // For the config directory
using namespace nsPlayerStats;
using namespace detail;
//------- Begin of function PlayerStats::PlayerStats ------//
//
PlayerStats::PlayerStats() :
scn_stat_arr(nullptr),
scn_stat_arr_len(0) { }
//------- End of function PlayerStats::PlayerStats ------//
//------- Begin of function PlayerStats::~PlayerStats ------//
//
PlayerStats::~PlayerStats() {
if (scn_stat_arr) {
mem_del(scn_stat_arr);
scn_stat_arr = nullptr; // used as a flag later
}
}
//------- End of function PlayerStats::~PlayerStats ------//
//------- Begin of function PlayerStats::load_player_stats ------//
//
bool PlayerStats::load_player_stats(bool force_reload) {
FilePath full_path(sys.dir_config);
int rc;
File file;
full_path += scn_dat_file;
if (full_path.error_flag)
return false;
if (!misc.is_file_exist(full_path))
return false;
rc = file.file_open(full_path, 0, 0);
if (!rc) { return false; }
//--------- Read Record Header ----------//
RecordHeader hdr;
rc = file.file_read(&hdr, sizeof(RecordHeader));
if (!rc) { return false; }
//--------- Read Record Data ----------//
//
// Since not every install will have records for the various
// statistics, we can't assume they can be read in any order
// or even that they're present at all.
//
switch (hdr.rec_type) {
case RecordType::ScenarioPlayStatus:
if (scn_stat_arr && !force_reload) {
return true;
} else if (scn_stat_arr && force_reload) {
mem_del(scn_stat_arr);
scn_stat_arr = nullptr;
scn_stat_arr_len = 0;
}
scn_stat_arr = (ScenStat *)mem_add_clear(hdr.rec_size*hdr.rec_count);
scn_stat_arr_len = hdr.rec_count;
rc = file.file_read(scn_stat_arr, hdr.rec_size*hdr.rec_count);
default:
rc = 0;
}
file.file_close();
return rc == 1 ? true : false;
}
//------- End of function PlayerStats::load_player_stats ------//
//------- Begin of function PlayerStats::write_player_stats ------//
//
// Will (re)write the entire file
//
bool PlayerStats::write_player_stats() {
FilePath full_path(sys.dir_config);
full_path += scn_dat_file;
if (full_path.error_flag) { return 0; }
File file;
int rc = file.file_create(full_path, 0, 0);
if (!rc) { return false; }
//
// Note, the order of the records doesn't matter since
// we always read/write a RecordHeader first, which tells
// us how many bytes follow.
//
//--------- Write Record Header ----------//
RecordHeader hdr;
hdr.rec_count = scn_stat_arr_len;
hdr.rec_type = RecordType::ScenarioPlayStatus;
hdr.rec_size = sizeof(ScenStat);
rc = file.file_write(&hdr, sizeof(RecordHeader));
if (!rc) { return false; }
//--------- Write Record Data ----------//
rc = file.file_write(scn_stat_arr, hdr.rec_size*hdr.rec_count);
file.file_close();
return rc == 1 ? true : false;
}
//------- End of function PlayerStats::write_player_stats ------//
//------- Begin of function PlayerStats::get_scenario_play_status ------//
//
PlayStatus PlayerStats::get_scenario_play_status(char const * game_name) {
// Check if we already loaded our file. If not, do it.
if (!scn_stat_arr) {
if (!load_player_stats()) {
// New installs won't have the file, so we assume unplayed. The
// file will get created the first time they play a scenario.
return PlayStatus::UNPLAYED;
}
}
// Find a matching name and return its status
for (unsigned i = 0; i < scn_stat_arr_len; i++) {
if (!strncmp(scn_stat_arr[i].game_name, game_name, detail::MAX_FILE_PATH)) {
return scn_stat_arr[i].status;
}
}
// If the file failed to load or we don't have a
// matching record, default to unplayed.
return PlayStatus::UNPLAYED;
}
//------- End of function PlayerStats::get_scenario_play_status ------//
//------- Begin of function PlayerStats::set_scenario_play_status ------//
//
bool PlayerStats::set_scenario_play_status(char const * game_name, PlayStatus status) {
if (!game_name[0])
return false;
// Check if we already loaded our file. If not, do it.
if (!scn_stat_arr) {
// If it fails, we'll create a new one. If it succeeds, we'll
// write to it. No need to check the return value here.
load_player_stats();
}
for (unsigned i = 0; i < scn_stat_arr_len; i++) {
if (!strncmp(scn_stat_arr[i].game_name, game_name, detail::MAX_FILE_PATH)) {
if (scn_stat_arr[i].status != status) {
// Update the entry and re-write the file
scn_stat_arr[i].status = status;
return write_player_stats();
} else {
// Don't bother writing to the file if no change is needed
return true;
}
}
}
// If we get here, there was no entry so we need a new one
int idx = scn_stat_arr_len;
scn_stat_arr_len++;
scn_stat_arr = (ScenStat *)mem_resize(scn_stat_arr, sizeof(ScenStat)*(scn_stat_arr_len));
strncpy(scn_stat_arr[idx].game_name, game_name, detail::MAX_FILE_PATH);
scn_stat_arr[idx].status = status;
return write_player_stats();
}
//------- End of function PlayerStats::set_scenario_play_status ------//
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