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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.
*
*/
#include "glk/jacl/jacl.h"
#include "glk/jacl/language.h"
#include "glk/jacl/types.h"
#include "glk/jacl/prototypes.h"
namespace Glk {
namespace JACL {
extern struct object_type *object[];
extern struct integer_type *integer_table;
extern struct integer_type *integer[];
extern struct function_type *function_table;
extern struct string_type *string_table;
extern schanid_t sound_channel[];
extern char temp_buffer[];
extern int objects;
extern int integers;
extern int functions;
extern int strings;
extern int player;
extern int it;
extern int them[];
extern int her;
extern int him;
extern int parent;
extern int noun[];
bool save_game(strid_t save) {
integer_type *current_integer = integer_table;
function_type *current_function = function_table;
string_type *current_string = string_table;
int index, counter;
// This is written to help validate the saved game when it's loaded
write_integer(save, objects);
write_integer(save, integers);
write_integer(save, functions);
write_integer(save, strings);
while (current_integer != NULL) {
write_integer(save, current_integer->value);
current_integer = current_integer->next_integer;
}
while (current_function != NULL) {
write_integer(save, current_function->call_count);
current_function = current_function->next_function;
}
for (index = 1; index <= objects; index++) {
if (object[index]->nosave)
continue;
for (counter = 0; counter < 16; counter++) {
write_integer(save, object[index]->integer[counter]);
}
write_long(save, object[index]->attributes);
write_long(save, object[index]->user_attributes);
}
// Write out all the current values of the string variables
while (current_string != NULL) {
for (index = 0; index < 255; index++) {
g_vm->glk_put_char_stream(save, current_string->value[index]);
}
current_string = current_string->next_string;
}
write_integer(save, player);
write_integer(save, noun[3]);
// Save the current volume of each of the sound channels
for (index = 0; index < 8; index++) {
sprintf(temp_buffer, "volume[%d]", index);
write_integer(save, cinteger_resolve(temp_buffer)->value);
}
// Save the current value of the GLK timer
write_integer(save, cinteger_resolve("timer")->value);
TIME->value = FALSE;
return true;
}
bool restore_game(strid_t save, bool warn) {
integer_type *current_integer = integer_table;
function_type *current_function = function_table;
string_type *current_string = string_table;
int index, counter;
int file_objects, file_integers, file_functions, file_strings;
// Read properties to validate the savegame is for this game
file_objects = read_integer(save);
file_integers = read_integer(save);
file_functions = read_integer(save);
file_strings = read_integer(save);
if (file_objects != objects
|| file_integers != integers
|| file_functions != functions
|| file_strings != strings) {
if (warn == FALSE) {
log_error(cstring_resolve("BAD_SAVED_GAME")->value, PLUS_STDOUT);
}
g_vm->glk_stream_close(save, NULL);
return (FALSE);
}
while (current_integer != NULL) {
current_integer->value = read_integer(save);
current_integer = current_integer->next_integer;
}
while (current_function != NULL) {
current_function->call_count = read_integer(save);
current_function = current_function->next_function;
}
for (index = 1; index <= objects; index++) {
if (object[index]->nosave)
continue;
for (counter = 0; counter < 16; counter++) {
object[index]->integer[counter] = read_integer(save);
}
object[index]->attributes = read_integer(save);
object[index]->user_attributes = read_integer(save);
}
while (current_string != NULL) {
for (index = 0; index < 255; index++) {
current_string->value[index] = g_vm->glk_get_char_stream(save);
}
current_string = current_string->next_string;
}
player = read_integer(save);
noun[3] = read_integer(save);
// Restore the current volume of each of the sound channels
for (index = 0; index < 8; index++) {
sprintf(temp_buffer, "volume[%d]", index);
counter = read_integer(save);
cinteger_resolve(temp_buffer)->value = counter;
if (SOUND_SUPPORTED->value) {
// Set the GLK volume
g_vm->glk_schannel_set_volume(sound_channel[index], (glui32) counter);
}
}
// Restore the current value of the GLK timer
counter = read_integer(save);
cinteger_resolve("timer")->value = counter;
// Set the GLK timer
g_vm->glk_request_timer_events((glui32) counter);
TIME->value = FALSE;
return true;
}
void write_integer(strid_t stream, int x) {
unsigned char c;
c = (unsigned char)(x) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 8) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 16) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 24) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
}
int read_integer(strid_t stream) {
int a, b, c, d;
a = (int) g_vm->glk_get_char_stream(stream);
b = (int) g_vm->glk_get_char_stream(stream);
c = (int) g_vm->glk_get_char_stream(stream);
d = (int) g_vm->glk_get_char_stream(stream);
return a | (b << 8) | (c << 16) | (d << 24);
}
void write_long(strid_t stream, long x) {
unsigned char c;
c = (unsigned char)(x) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 8) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 16) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
c = (unsigned char)(x >> 24) & 0xFF;
g_vm->glk_put_char_stream(stream, c);
}
long read_long(strid_t stream) {
long a, b, c, d;
a = (long) g_vm->glk_get_char_stream(stream);
b = (long) g_vm->glk_get_char_stream(stream);
c = (long) g_vm->glk_get_char_stream(stream);
d = (long) g_vm->glk_get_char_stream(stream);
return a | (b << 8) | (c << 16) | (d << 24);
}
} // End of namespace JACL
} // End of namespace Glk
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