hardness_tiles.cpp

/**
 * Hardness tileset for game map

 * Copyright (C) 1997, 1998, 1999, 2002, 2003  Seth A. Robinson
 * Copyright (C) 2005, 2007, 2008, 2009, 2010, 2012, 2014, 2015  Sylvain Beucler

 * This file is part of GNU FreeDink

 * GNU FreeDink 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.

 * GNU FreeDink 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/>.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "hardness_tiles.h"
#include "EditorMap.h"
#include "paths.h"
#include "log.h"

/* HWND                    hWndMain = NULL; */
struct hardness hmap;

char current_hard[50] = "hard.dat";

/***
 * Saves hard.dat (only used from the editor)
 */
void save_hard(void) {
	char skipbuf[10000]; // more than any fseek we do
	memset(skipbuf, 0, 10000);

	FILE* f = paths_dmodfile_fopen(current_hard, "wb");
	if (!f) {
		perror("Couldn't save hard.dat");
		return;
	}

	/* Portably dump struct hardness hmap to disk */
	int i = 0;
	for (i = 0; i < HARDNESS_NB_TILES; i++) {
		for (int x = 0; x < 50 + 1; x++)
			for (int y = 0; y < 50 + 1; y++)
				fwrite(&hmap.htile[i].hm[x][y], 1, 1, f);
		fputc(hmap.htile[i].used, f);
		fwrite(skipbuf, 2, 1, f); // reproduce memory alignment
		fwrite(skipbuf, 4, 1, f); // unused 'hold' field
	}
	for (i = 0; i < GFX_TILES_NB_SQUARES; i++)
		write_lsb_int(hmap.btile_default[i], f);
	fseek(f, (8000 - GFX_TILES_NB_SQUARES) * 4,
		SEEK_CUR); // reproduce unused data

	fclose(f);
}

/**
 * Load hard.dat which contains tile hardness information.
 * 
 * Unlike 1.08, don't reset and save hard.dat during game in case
 * e.g. it was just being written by an external editor.
 */
void load_hard(void) {
	memset(&hmap, 0, sizeof(struct hardness));

	char skipbuf[10000]; // more than any fseek we do

	FILE* f = NULL;

	/* Try loading the D-Mod hard.dat */
	f = paths_dmodfile_fopen(current_hard, "rb");

	/* Fallback to the default hard.dat */
	if (f == NULL)
		f = paths_fallbackfile_fopen(current_hard, "rb");

	if (f == NULL) {
		log_error("Did not find existing hard.dat, using empty data.");
		return;
	}

	/* Portably load struct hardness hmap from disk */
	int i = 0;
	for (i = 0; i < HARDNESS_NB_TILES; i++) {
		for (int x = 0; x < 50 + 1; x++)
			for (int y = 0; y < 50 + 1; y++)
				fread(&hmap.htile[i].hm[x][y], 1, 1, f);
		hmap.htile[i].used = fgetc(f);
		fread(skipbuf, 2, 1, f); // reproduce memory alignment
		fread(skipbuf, 4, 1, f); // unused 'hold' field
	}
	for (i = 0; i < GFX_TILES_NB_SQUARES; i++)
		hmap.btile_default[i] = read_lsb_int(f);
	fseek(f, (8000 - GFX_TILES_NB_SQUARES) * 4,
		SEEK_CUR); // reproduce unused data

	fclose(f);
}