project_files/frontlib/model/scheme.c
author Medo <smaxein@googlemail.com>
Tue, 10 Jul 2012 19:33:57 +0200
changeset 7320 e704706008d4
parent 7316 project_files/frontlib/model/cfg.c@f7b49b2c5d84
child 7482 d70a5b0d1190
permissions -rw-r--r--
frontlib: Renamed cfg to scheme, Un-refcounted some types, small API adjustments
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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 */
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#include "scheme.h"
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#include "../util/inihelper.h"
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#include "../util/logging.h"
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#include "../util/util.h"
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#include "../util/refcounter.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <string.h>
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static void flib_metascheme_destroy(flib_metascheme *meta) {
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	if(meta) {
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		if(meta->settings) {
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			for(int i=0; i<meta->settingCount; i++) {
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				free(meta->settings[i].name);
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				free(meta->settings[i].engineCommand);
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			}
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			free(meta->settings);
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		}
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		if(meta->mods) {
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			for(int i=0; i<meta->modCount; i++) {
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				free(meta->mods[i].name);
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			}
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			free(meta->mods);
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		}
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		free(meta);
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	}
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}
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static void flib_scheme_destroy(flib_scheme* scheme) {
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	if(scheme) {
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		flib_metascheme_release(scheme->meta);
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		free(scheme->mods);
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		free(scheme->settings);
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		free(scheme->name);
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		free(scheme);
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	}
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}
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static flib_metascheme *flib_metascheme_from_ini_handleError(flib_metascheme *result, flib_ini *ini) {
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	flib_metascheme_destroy(result);
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	flib_ini_destroy(ini);
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	return NULL;
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}
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static int readMetaSettingSections(flib_ini *ini, flib_metascheme *result, int limit) {
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	while(result->settingCount<limit) {
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		char sectionName[32];
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		if(snprintf(sectionName, sizeof(sectionName), "setting%i", result->settingCount) <= 0) {
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			return -1;
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		}
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		if(!flib_ini_enter_section(ini, sectionName)) {
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			flib_metascheme_setting *metasetting = &result->settings[result->settingCount];
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			result->settingCount++;
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			bool error = false;
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			error |= flib_ini_get_str(ini, &metasetting->name, "name");
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			error |= flib_ini_get_str_opt(ini, &metasetting->engineCommand, "command", NULL);
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			error |= flib_ini_get_bool(ini, &metasetting->times1000, "times1000");
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			error |= flib_ini_get_bool(ini, &metasetting->maxMeansInfinity, "maxmeansinfinity");
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			error |= flib_ini_get_int(ini, &metasetting->min, "min");
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			error |= flib_ini_get_int(ini, &metasetting->max, "max");
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			error |= flib_ini_get_int(ini, &metasetting->def, "default");
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			if(error) {
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				flib_log_e("Missing or malformed ini parameter in metaconfig, section %s", sectionName);
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				return -1;
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			}
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		} else {
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			return 0;
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		}
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	}
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	return 0;
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}
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static int readMetaModSections(flib_ini *ini, flib_metascheme *result, int limit) {
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	while(result->modCount<limit) {
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		char sectionName[32];
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		if(snprintf(sectionName, sizeof(sectionName), "mod%i", result->modCount) <= 0) {
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			return -1;
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		}
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		if(!flib_ini_enter_section(ini, sectionName)) {
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			flib_metascheme_mod *metamod = &result->mods[result->modCount];
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			result->modCount++;
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			bool error = false;
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			error |= flib_ini_get_str(ini, &metamod->name, "name");
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			error |= flib_ini_get_int(ini, &metamod->bitmaskIndex, "bitmaskIndex");
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			if(error) {
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				flib_log_e("Missing or malformed ini parameter in metaconfig, section %s", sectionName);
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				return -1;
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			}
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		} else {
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			return 0;
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		}
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	}
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	return 0;
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}
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   119
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flib_metascheme *flib_metascheme_from_ini(const char *filename) {
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	if(log_badargs_if(filename==NULL)) {
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		return NULL;
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	}
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	flib_metascheme *result = flib_metascheme_retain(flib_calloc(1, sizeof(flib_metascheme)));
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	flib_ini *ini = flib_ini_load(filename);
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	if(!result || !ini) {
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		return flib_metascheme_from_ini_handleError(result, ini);
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	}
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	// We're overallocating here for simplicity
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	int sectionCount = flib_ini_get_sectioncount(ini);
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	result->settingCount = 0;
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	result->modCount = 0;
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	result->settings = flib_calloc(sectionCount, sizeof(flib_metascheme_setting));
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	result->mods = flib_calloc(sectionCount, sizeof(flib_metascheme_mod));
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	if(!result->settings || !result->mods) {
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		return flib_metascheme_from_ini_handleError(result, ini);
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	}
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   141
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	if(readMetaSettingSections(ini, result, sectionCount) || readMetaModSections(ini, result, sectionCount)) {
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		return flib_metascheme_from_ini_handleError(result, ini);
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   144
	}
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   145
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	if(result->settingCount+result->modCount != sectionCount) {
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		flib_log_e("Unknown or non-contiguous sections headers in metaconfig.");
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		return flib_metascheme_from_ini_handleError(result, ini);
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   149
	}
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   150
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	flib_ini_destroy(ini);
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   152
	return result;
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   153
}
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   154
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flib_metascheme *flib_metascheme_retain(flib_metascheme *metainfo) {
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	if(metainfo) {
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		flib_retain(&metainfo->_referenceCount, "flib_metascheme");
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	}
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   159
	return metainfo;
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   160
}
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   161
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void flib_metascheme_release(flib_metascheme *meta) {
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	if(meta && flib_release(&meta->_referenceCount, "flib_metascheme")) {
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		flib_metascheme_destroy(meta);
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   165
	}
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   166
}
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   167
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flib_scheme *flib_scheme_create(flib_metascheme *meta, const char *schemeName) {
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	flib_scheme *result = flib_scheme_retain(flib_calloc(1, sizeof(flib_scheme)));
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	if(log_badargs_if2(meta==NULL, schemeName==NULL) || result==NULL) {
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		return NULL;
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	}
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	result->meta = flib_metascheme_retain(meta);
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	result->name = flib_strdupnull(schemeName);
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	result->mods = flib_calloc(meta->modCount, sizeof(*result->mods));
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	result->settings = flib_calloc(meta->settingCount, sizeof(*result->settings));
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	if(!result->mods || !result->settings || !result->name) {
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		flib_scheme_destroy(result);
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		return NULL;
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	}
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   184
	for(int i=0; i<meta->settingCount; i++) {
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		result->settings[i] = meta->settings[i].def;
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   186
	}
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   187
	return result;
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   188
}
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   189
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flib_scheme *flib_scheme_copy(const flib_scheme *scheme) {
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   191
	flib_scheme *result = NULL;
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   192
	if(scheme) {
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   193
		result = flib_scheme_create(scheme->meta, scheme->name);
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   194
		if(result) {
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   195
			memcpy(result->mods, scheme->mods, scheme->meta->modCount * sizeof(*scheme->mods));
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   196
			memcpy(result->settings, scheme->settings, scheme->meta->settingCount * sizeof(*scheme->settings));
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   197
		}
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   198
	}
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   199
	return result;
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   200
}
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   201
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   202
flib_scheme *flib_scheme_retain(flib_scheme *scheme) {
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   203
	if(scheme) {
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   204
		flib_retain(&scheme->_referenceCount, "flib_scheme");
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   205
	}
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   206
	return scheme;
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   207
}
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   208
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   209
void flib_scheme_release(flib_scheme *scheme) {
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   210
	if(scheme && flib_release(&scheme->_referenceCount, "flib_scheme")) {
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		flib_scheme_destroy(scheme);
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   212
	}
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}
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   214
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   215
bool flib_scheme_get_mod(flib_scheme *scheme, const char *name) {
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   216
	if(!log_badargs_if2(scheme==NULL, name==NULL)) {
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   217
		for(int i=0; i<scheme->meta->modCount; i++) {
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   218
			if(!strcmp(scheme->meta->mods[i].name, name)) {
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   219
				return scheme->mods[i];
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   220
			}
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   221
		}
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   222
		flib_log_e("Unable to find game mod %s", name);
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   223
	}
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   224
	return false;
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   225
}
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   226
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int flib_scheme_get_setting(flib_scheme *scheme, const char *name, int def) {
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   228
	if(!log_badargs_if2(scheme==NULL, name==NULL)) {
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   229
		for(int i=0; i<scheme->meta->settingCount; i++) {
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   230
			if(!strcmp(scheme->meta->settings[i].name, name)) {
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   231
				return scheme->settings[i];
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   232
			}
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   233
		}
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   234
		flib_log_e("Unable to find game setting %s", name);
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	}
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	return def;
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   237
}