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/* config -- game configurations.
* Copyright (C) 2010-2020 Simen Heggestøyl <simenheg@runbox.com>
*
* 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 3 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/>.
*/
#include "config.h"
unsigned int scorecap = DEFAULT_SCORECAP;
bool fullscreen = DEFAULT_FULLSCREEN;
bool sound = DEFAULT_SOUND;
bool music = DEFAULT_MUSIC;
bool weapons = DEFAULT_WEAPONS;
bool holes = DEFAULT_HOLES;
bool broadcasts = DEFAULT_BROADCASTS;
bool particleEffects = DEFAULT_PARTICLE_EFFECTS;
bool border = DEFAULT_BORDER;
bool duelmode = DEFAULT_DUELMODE;
const char *settingNames[] = {"fullscreen", "sound", "music", "weapons",
"holes", "broadcasts", "particleEffects",
"border", "duelmode"};
bool *settings[9] = {&fullscreen, &sound, &music, &weapons, &holes,
&broadcasts, &particleEffects, &border, &duelmode};
/**
* Return that path of the directory where the config file resides.
*/
char *getConfigPath(void)
{
char *home = getenv("HOME");
char *xdg_config_home = getenv("XDG_CONFIG_HOME");
int strlen = snprintf(NULL, 0, "%s/%szatackax",
xdg_config_home ? xdg_config_home : home,
xdg_config_home ? "" : ".config/");
char *config_path = calloc(strlen + 1, sizeof(char));
snprintf(config_path, strlen + 1, "%s/%szatackax",
xdg_config_home ? xdg_config_home : home,
xdg_config_home ? "" : ".config/");
return config_path;
}
/**
* Ensure that the directory where the config file resides exists.
*
* Return zero on success, or -1 if an error occurred (in which case,
* errno is set appropriately).
*/
int ensureConfigPath(void)
{
char *configPath = getConfigPath();
int status = mkdir(configPath, S_IRWXU);
free(configPath);
return status;
}
/**
* Return the full config file name.
*/
char *getConfigFile(void)
{
char *configPath = getConfigPath();
int strlen = snprintf(NULL, 0, "%s/settings.cfg", configPath);
char *configFile = calloc(strlen + 1, sizeof(char));
snprintf(configFile, strlen + 1, "%s/settings.cfg", configPath);
free(configPath);
return configFile;
}
/**
* Save the current settings to the config file.
*/
void saveSettings(void)
{
ensureConfigPath();
char *filename = getConfigFile();
FILE *file = fopen(filename, "w");
if (file == NULL) {
if (olvl >= O_NORMAL) {
fprintf(stderr, "Couldn't open file '%s' for writing.\n",
filename);
}
free(filename);
return;
}
for (unsigned int i = 0; i < sizeof(settings) / sizeof(bool*); ++i) {
fprintf(file, "%s = %d\n", settingNames[i], *settings[i]);
}
fprintf(file, "scorecap = %d\n", scorecap);
for (unsigned int i = 0; i < MAX_PLAYERS; ++i) {
fprintf(file, "%dn = %s\n", i + 1, (&players[i])->name);
fprintf(file, "%dc = %d\n", i + 1, (&players[i])->color);
fprintf(file, "%da = %d\n", i + 1, (&players[i])->ai);
fprintf(file, "%dl = %d\n", i + 1, (&players[i])->lkey);
fprintf(file, "%dw = %d\n", i + 1, (&players[i])->wkey);
fprintf(file, "%dr = %d\n", i + 1, (&players[i])->rkey);
}
if (olvl >= O_NORMAL && ferror(file)) {
fprintf(stderr, "Error writing to file '%s'.\n", filename);
}
free(filename);
fclose(file);
}
/**
* Restore previous settings from the config file.
*/
void restoreSettings(void)
{
char *filename = getConfigFile();
FILE *file = fopen(filename, "r");
if (file == NULL) {
if (olvl >= O_DEBUG) {
fprintf(stderr, "Couldn't restore settings from file %s.\n",
filename);
}
free(filename);
return;
}
char setting[STRBUF];
char value[STRBUF];
int line = 0;
bool valid = false;
while ((fscanf(file, "%s = %s\n", setting, value)) != EOF) {
valid = false;
for (unsigned int i = 0; i < sizeof(settings)/sizeof(bool*); ++i) {
if (strncmp(settingNames[i], setting, STRBUF) == 0) {
/* We have a matched setting */
*settings[i] = atoi(value);
valid = true;
break;
}
}
if (!valid && strncmp("scorecap", setting, STRBUF) == 0) {
scorecap = atoi(value);
valid = true;
}
else if (!valid && isdigit(setting[0])) {
struct player *p = &players[setting[0] - '0' - 1];
switch (setting[1]) {
case 'n': /* Name */
strncpy(p->name, value, PLAYER_NAME_LEN);
valid = true;
break;
case 'c': /* Color */
p->color = atoi(value);
valid = true;
break;
case 'a': /* AI */
p->ai = atoi(value);
valid = true;
break;
case 'l': /* Left key */
p->lkey = atoi(value);
valid = true;
break;
case 'w': /* Weapon key */
p->wkey = atoi(value);
valid = true;
break;
case 'r': /* Right key */
p->rkey = atoi(value);
valid = true;
break;
default:
break;
}
}
if (!valid && olvl >= O_NORMAL) {
fprintf(stderr, "Unknown config format in '%s', line "
"%d: %s\n", filename, line, setting);
}
++line;
}
free(filename);
fclose(file);
}
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