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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GARGOYLE_FROTZ_MEM
#define GARGOYLE_FROTZ_MEM
#include "gargoyle/frotz/frotz_types.h"
namespace Gargoyle {
namespace Frotz {
/**
* Story file header data
*/
struct Header {
zbyte h_version;
zbyte h_config;
zword h_release;
zword h_resident_size;
zword h_start_pc;
zword h_dictionary;
zword h_objects;
zword h_globals;
zword h_dynamic_size;
zword h_flags;
zbyte h_serial[6];
zword h_abbreviations;
zword h_file_size;
zword h_checksum;
zbyte h_interpreter_number;
zbyte h_interpreter_version;
zbyte h_screen_rows;
zbyte h_screen_cols;
zword h_screen_width;
zword h_screen_height;
zbyte h_font_height = 1;
zbyte h_font_width = 1;
zword h_functions_offset;
zword h_strings_offset;
zbyte h_default_background;
zbyte h_default_foreground;
zword h_terminating_keys;
zword h_line_width;
zbyte h_standard_high;
zbyte h_standard_low;
zword h_alphabet;
zword h_extension_table;
zbyte h_user_name[8];
zword hx_table_size;
zword hx_mouse_x;
zword hx_mouse_y;
zword hx_unicode_table;
zword hx_flags;
zword hx_fore_colour;
zword hx_back_colour;
Header() : h_version(0), h_config(0), h_release(0), h_resident_size(0), h_start_pc(0),
h_dictionary(0), h_objects(0), h_globals(0), h_dynamic_size(0), h_flags(0),
h_abbreviations(0), h_file_size(0), h_checksum(0), h_interpreter_number(0),
h_interpreter_version(0), h_screen_rows(0), h_screen_cols(0), h_screen_width(0),
h_screen_height(0), h_font_height(1), h_font_width(1), h_functions_offset(0),
h_strings_offset(0), h_default_background(0), h_default_foreground(0),
h_terminating_keys(0), h_line_width(0), h_standard_high(1), h_standard_low(1),
h_alphabet(0), h_extension_table(0),
hx_table_size(0), hx_mouse_x(0), hx_mouse_y(0), hx_unicode_table(0),
hx_flags(0), hx_fore_colour(0), hx_back_colour(0) {
Common::fill(&h_serial[0], &h_serial[6], '\0');
Common::fill(&h_user_name[0], &h_user_name[8], '\0');
}
};
class Mem : public Header {
struct StoryEntry {
Story _storyId;
zword _release;
char _serial[7];
};
static const StoryEntry RECORDS[25];
private:
Common::SeekableReadStream *story_fp;
uint blorb_ofs, blorb_len;
byte *pcp;
byte *zmp;
private:
/**
* Handles setting the story file, parsing it if it's a Blorb file
*/
void initializeStoryFile();
public:
/**
* Constructor
*/
Mem();
/**
* Initialize
*/
void initialize();
/**
* Read a word
*/
zword readWord() {
pcp += 2;
return READ_BE_UINT16(pcp - 2);
}
/**
* Read a word at a given index relative to pcp
*/
zword readWord(size_t ofs) {
return READ_BE_UINT16(pcp + ofs);
}
/**
* Get the PC
*/
uint getPC() const { return pcp - zmp; }
/**
* Set the PC
*/
void setPC(uint ofs) { pcp = zmp + ofs; }
};
} // End of namespace Frotz
} // End of namespace Gargoyle
#endif
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