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ScriptHandler.cpp
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ScriptHandler.cpp
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/* -*- C++ -*-
*
* ScriptHandler.cpp - Script manipulation class
*
* Copyright (c) 2001-2007 Ogapee. All rights reserved.
*
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// Modified by Haeleth, Autumn 2006, to better support OS X/Linux packaging.
#include "ScriptHandler.h"
#ifdef MACOSX
#include <Carbon/Carbon.h>
#endif
#define TMP_SCRIPT_BUF_LEN 4096
#define STRING_BUFFER_LENGTH 2048
#define SKIP_SPACE(p) while ( *(p) == ' ' || *(p) == '\t' ) (p)++
ScriptHandler::ScriptHandler()
{
num_of_labels = 0;
script_buffer = NULL;
kidoku_buffer = NULL;
log_info[LABEL_LOG].filename = "NScrllog.dat";
log_info[FILE_LOG].filename = "NScrflog.dat";
clickstr_list = NULL;
string_buffer = new char[STRING_BUFFER_LENGTH];
str_string_buffer = new char[STRING_BUFFER_LENGTH];
saved_string_buffer = new char[STRING_BUFFER_LENGTH];
variable_data = new VariableData[VARIABLE_RANGE+1]; // the last one is a sink
root_array_variable = NULL;
screen_size = SCREEN_SIZE_640x480;
global_variable_border = 200;
save_path = NULL;
game_identifier = NULL;
game_hash = 0;
}
ScriptHandler::~ScriptHandler()
{
reset();
if ( script_buffer ) delete[] script_buffer;
if ( kidoku_buffer ) delete[] kidoku_buffer;
delete[] string_buffer;
delete[] string_buffer;
delete[] saved_string_buffer;
delete[] variable_data;
if (game_identifier) delete[] game_identifier;
}
void ScriptHandler::reset()
{
for (int i=0 ; i<VARIABLE_RANGE ; i++)
variable_data[i].reset(true);
ArrayVariable *av = root_array_variable;
while(av){
ArrayVariable *tmp = av;
av = av->next;
delete tmp;
}
root_array_variable = current_array_variable = NULL;
// reset log info
resetLog( log_info[LABEL_LOG] );
resetLog( log_info[FILE_LOG] );
// reset number alias
Alias *alias;
alias = root_num_alias.next;
while (alias){
Alias *tmp = alias;
alias = alias->next;
delete tmp;
};
last_num_alias = &root_num_alias;
last_num_alias->next = NULL;
// reset string alias
alias = root_str_alias.next;
while (alias){
Alias *tmp = alias;
alias = alias->next;
delete tmp;
};
last_str_alias = &root_str_alias;
last_str_alias->next = NULL;
// reset misc. variables
end_status = END_NONE;
kidokuskip_flag = false;
text_flag = true;
linepage_flag = false;
textgosub_flag = false;
skip_enabled = false;
if (clickstr_list){
delete[] clickstr_list;
clickstr_list = NULL;
}
}
FILE *ScriptHandler::fopen( const char *path, const char *mode, const bool save )
{
const char* root;
char *file_name;
FILE *fp = NULL;
if (save) {
root = save_path;
file_name = new char[strlen(root)+strlen(path)+1];
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
} else {
// search within archive_path(s)
file_name = new char[archive_path->max_path_len()+strlen(path)+1];
for (int n=0; n<archive_path->get_num_paths(); n++) {
root = archive_path->get_path(n);
//printf("root: %s\n", root);
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
if (fp != NULL) break;
}
}
delete[] file_name;
return fp;
}
FILE *ScriptHandler::fopen( const char *root, const char *path, const char *mode )
{
char *file_name;
FILE *fp = NULL;
file_name = new char[strlen(root)+strlen(path)+1];
sprintf( file_name, "%s%s", root, path );
//printf("handler:fopen(\"%s\")\n", file_name);
fp = ::fopen( file_name, mode );
delete[] file_name;
return fp;
}
void ScriptHandler::setKeyTable( const unsigned char *key_table )
{
int i;
if (key_table){
key_table_flag = true;
for (i=0 ; i<256 ; i++) this->key_table[i] = key_table[i];
}
else{
key_table_flag = false;
for (i=0 ; i<256 ; i++) this->key_table[i] = i;
}
}
// basic parser function
const char *ScriptHandler::readToken()
{
current_script = next_script;
char *buf = current_script;
end_status = END_NONE;
current_variable.type = VAR_NONE;
text_flag = false;
SKIP_SPACE( buf );
markAsKidoku( buf );
readTokenTop:
string_counter = 0;
char ch = *buf;
if (ch == ';'){ // comment
addStringBuffer( ch );
do{
ch = *++buf;
addStringBuffer( ch );
} while ( ch != 0x0a && ch != '\0' );
}
else if (ch & 0x80 ||
(ch >= '0' && ch <= '9') ||
ch == '@' || ch == '\\' || ch == '/' ||
ch == '%' || ch == '?' || ch == '$' ||
ch == '[' || ch == '(' ||
#ifndef ENABLE_1BYTE_CHAR
ch == '`' ||
#endif
ch == '!' || ch == '#' || ch == ',' || ch == '"'){ // text
bool loop_flag = true;
bool ignore_click_flag = false;
do{
if ( IS_TWO_BYTE(ch) ){
if ( textgosub_flag && !ignore_click_flag && checkClickstr(buf) > 0) loop_flag = false;
addStringBuffer( ch );
ch = *++buf;
if (ch == 0x0a || ch == '\0') break;
addStringBuffer( ch );
buf++;
SKIP_SPACE(buf);
ch = *buf;
}
else{
if (ch == '%' || ch == '?'){
addIntVariable(&buf);
}
else if (ch == '$'){
addStrVariable(&buf);
}
else{
if (textgosub_flag && !ignore_click_flag && checkClickstr(buf) == 1)
loop_flag = false;
addStringBuffer( ch );
buf++;
ignore_click_flag = false;
if (ch == '_') ignore_click_flag = true;
}
if (ch>='0' && ch<='9' && (*buf == ' ' || *buf == '\t'
#ifdef ENABLE_1BYTE_CHAR
|| *buf == '`'
#endif
) && string_counter%2 == 1) addStringBuffer( ' ' );
ch = *buf;
if (ch == 0x0a || ch == '\0' || !loop_flag
#ifdef ENABLE_1BYTE_CHAR
|| ch == '`'
#endif
) break;
SKIP_SPACE(buf);
ch = *buf;
}
}
while (ch != 0x0a && ch != '\0' && loop_flag
#ifdef ENABLE_1BYTE_CHAR
&& ch != '`'
#endif
);
if (loop_flag && ch == 0x0a && !(textgosub_flag && linepage_flag)){
addStringBuffer( ch );
markAsKidoku( buf++ );
}
text_flag = true;
}
#ifdef ENABLE_1BYTE_CHAR
else if (ch == '`'){
ch = *++buf;
while (ch != '`' && ch != 0x0a && ch !='\0'){
if (ch == '$'){
if (buf[1] == '$') ++buf; else{
addStrVariable(&buf);
while (*--buf == ' ');
ch = *++buf;
continue;
}
}
if ( IS_TWO_BYTE(ch) ){
addStringBuffer( ch );
ch = *++buf;
}
addStringBuffer( ch );
ch = *++buf;
}
if (ch == '`') buf++;
if (ch == 0x0a && !(textgosub_flag && linepage_flag)){
addStringBuffer( ch );
markAsKidoku( buf++ );
}
text_flag = true;
end_status |= END_1BYTE_CHAR;
}
#endif
else if ((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
ch == '_'){ // command
do{
if (ch >= 'A' && ch <= 'Z') ch += 'a' - 'A';
addStringBuffer( ch );
ch = *++buf;
}
while((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '_');
}
else if (ch == '*'){ // label
return readLabel();
}
else if (ch == '~' || ch == 0x0a || ch == ':'){
addStringBuffer( ch );
markAsKidoku( buf++ );
}
else if (ch != '\0'){
fprintf(stderr, "readToken: skip unknown heading character %c (%x)\n", ch, ch);
buf++;
goto readTokenTop;
}
next_script = checkComma(buf);
//printf("readToken [%s] len=%d [%c(%x)] %p\n", string_buffer, strlen(string_buffer), ch, ch, next_script);
return string_buffer;
}
const char *ScriptHandler::readLabel()
{
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
string_counter = 0;
char ch = *buf;
if (ch == '$'){
addStrVariable(&buf);
}
else if ((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
ch == '_' || ch == '*'){
if (ch >= 'A' && ch <= 'Z') ch += 'a' - 'A';
addStringBuffer( ch );
buf++;
if (ch == '*') SKIP_SPACE(buf);
ch = *buf;
while((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '_'){
if (ch >= 'A' && ch <= 'Z') ch += 'a' - 'A';
addStringBuffer( ch );
ch = *++buf;
}
}
addStringBuffer( '\0' );
next_script = checkComma(buf);
return string_buffer;
}
const char *ScriptHandler::readStr()
{
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
string_buffer[0] = '\0';
string_counter = 0;
while(1){
parseStr(&buf);
buf = checkComma(buf);
string_counter += strlen(str_string_buffer);
if (string_counter+1 >= STRING_BUFFER_LENGTH)
errorAndExit("readStr: string length exceeds 2048 bytes.");
strcat(string_buffer, str_string_buffer);
if (buf[0] != '+') break;
buf++;
}
next_script = buf;
return string_buffer;
}
int ScriptHandler::readInt()
{
string_counter = 0;
string_buffer[string_counter] = '\0';
end_status = END_NONE;
current_variable.type = VAR_NONE;
current_script = next_script;
SKIP_SPACE( current_script );
char *buf = current_script;
int ret = parseIntExpression(&buf);
next_script = checkComma(buf);
return ret;
}
void ScriptHandler::skipToken()
{
SKIP_SPACE( current_script );
char *buf = current_script;
bool quat_flag = false;
bool text_flag = false;
while(1){
if ( *buf == 0x0a ||
(!quat_flag && !text_flag && (*buf == ':' || *buf == ';') ) ) break;
if ( *buf == '"' ) quat_flag = !quat_flag;
if ( IS_TWO_BYTE(*buf) ){
buf += 2;
if ( !quat_flag ) text_flag = true;
}
else
buf++;
}
if (text_flag && *buf == 0x0a) buf++;
next_script = buf;
}
// string access function
char *ScriptHandler::saveStringBuffer()
{
strcpy( saved_string_buffer, string_buffer );
return saved_string_buffer;
}
// script address direct manipulation function
void ScriptHandler::setCurrent(char *pos)
{
current_script = next_script = pos;
}
void ScriptHandler::pushCurrent( char *pos )
{
pushed_current_script = current_script;
pushed_next_script = next_script;
current_script = pos;
next_script = pos;
}
void ScriptHandler::popCurrent()
{
current_script = pushed_current_script;
next_script = pushed_next_script;
}
int ScriptHandler::getOffset( char *pos )
{
return pos - script_buffer;
}
char *ScriptHandler::getAddress( int offset )
{
return script_buffer + offset;
}
int ScriptHandler::getLineByAddress( char *address )
{
LabelInfo label = getLabelByAddress( address );
char *addr = label.label_header;
int line = 0;
while ( address > addr ){
if ( *addr == 0x0a ) line++;
addr++;
}
return line;
}
char *ScriptHandler::getAddressByLine( int line )
{
LabelInfo label = getLabelByLine( line );
int l = line - label.start_line;
char *addr = label.label_header;
while ( l > 0 ){
while( *addr != 0x0a ) addr++;
addr++;
l--;
}
return addr;
}
ScriptHandler::LabelInfo ScriptHandler::getLabelByAddress( char *address )
{
int i;
for ( i=0 ; i<num_of_labels-1 ; i++ ){
if ( label_info[i+1].start_address > address )
return label_info[i];
}
return label_info[i];
}
ScriptHandler::LabelInfo ScriptHandler::getLabelByLine( int line )
{
int i;
for ( i=0 ; i<num_of_labels-1 ; i++ ){
if ( label_info[i+1].start_line > line )
return label_info[i];
}
return label_info[i];
}
bool ScriptHandler::isName( const char *name )
{
return (strncmp( name, string_buffer, strlen(name) )==0)?true:false;
}
bool ScriptHandler::isText()
{
return text_flag;
}
bool ScriptHandler::compareString(const char *buf)
{
SKIP_SPACE(next_script);
unsigned int i, num = strlen(buf);
for (i=0 ; i<num ; i++){
unsigned char ch = next_script[i];
if ('A' <= ch && 'Z' >= ch) ch += 'a' - 'A';
if (ch != buf[i]) break;
}
return (i==num)?true:false;
}
void ScriptHandler::skipLine( int no )
{
for ( int i=0 ; i<no ; i++ ){
while ( *current_script != 0x0a ) current_script++;
current_script++;
}
next_script = current_script;
}
void ScriptHandler::setLinepage( bool val )
{
linepage_flag = val;
}
// function for kidoku history
bool ScriptHandler::isKidoku()
{
return skip_enabled;
}
void ScriptHandler::markAsKidoku( char *address )
{
if ( !kidokuskip_flag ) return;
int offset = current_script - script_buffer;
if ( address ) offset = address - script_buffer;
//printf("mark (%c)%x:%x = %d\n", *current_script, offset /8, offset%8, kidoku_buffer[ offset/8 ] & ((char)1 << (offset % 8)));
if ( kidoku_buffer[ offset/8 ] & ((char)1 << (offset % 8)) )
skip_enabled = true;
else
skip_enabled = false;
kidoku_buffer[ offset/8 ] |= ((char)1 << (offset % 8));
}
void ScriptHandler::setKidokuskip( bool kidokuskip_flag )
{
this->kidokuskip_flag = kidokuskip_flag;
}
void ScriptHandler::saveKidokuData()
{
FILE *fp;
if ( ( fp = fopen( "kidoku.dat", "wb", true ) ) == NULL ){
fprintf( stderr, "can't write kidoku.dat\n" );
return;
}
fwrite( kidoku_buffer, 1, script_buffer_length/8, fp );
fclose( fp );
}
void ScriptHandler::loadKidokuData()
{
FILE *fp;
setKidokuskip( true );
kidoku_buffer = new char[ script_buffer_length/8 + 1 ];
memset( kidoku_buffer, 0, script_buffer_length/8 + 1 );
if ( ( fp = fopen( "kidoku.dat", "rb", true ) ) != NULL ){
fread( kidoku_buffer, 1, script_buffer_length/8, fp );
fclose( fp );
}
}
void ScriptHandler::addIntVariable(char **buf)
{
char num_buf[20];
int no = parseInt(buf);
int len = getStringFromInteger( num_buf, no, -1 );
for (int i=0 ; i<len ; i++)
addStringBuffer( num_buf[i] );
}
void ScriptHandler::addStrVariable(char **buf)
{
(*buf)++;
int no = parseInt(buf);
VariableData &vd = variable_data[no];
if ( vd.str ){
for (unsigned int i=0 ; i<strlen( vd.str ) ; i++){
addStringBuffer( vd.str[i] );
}
}
}
void ScriptHandler::enableTextgosub(bool val)
{
textgosub_flag = val;
}
void ScriptHandler::setClickstr(const char *list)
{
if (clickstr_list) delete[] clickstr_list;
clickstr_list = new char[strlen(list)+2];
memcpy( clickstr_list, list, strlen(list)+1 );
clickstr_list[strlen(list)+1] = '\0';
}
int ScriptHandler::checkClickstr(const char *buf, bool recursive_flag)
{
if ( buf[0] == '@' || buf[0] == '\\' ) return 1;
if (clickstr_list == NULL) return 0;
bool double_byte_check = true;
char *click_buf = clickstr_list;
while(click_buf[0]){
#ifdef ENABLE_1BYTE_CHAR
if (click_buf[0] == '`'){
click_buf++;
double_byte_check = false;
continue;
}
#endif
if (double_byte_check){
if ( click_buf[0] == buf[0] && click_buf[1] == buf[1] ){
if (!recursive_flag && checkClickstr(buf+2, true) > 0) return 0;
return 2;
}
click_buf += 2;
}
else{
if ( click_buf[0] == buf[0] ){
if (!recursive_flag && checkClickstr(buf+1, true) > 0) return 0;
return 1;
}
click_buf++;
}
}
return 0;
}
int ScriptHandler::getIntVariable( VariableInfo *var_info )
{
if ( var_info == NULL ) var_info = ¤t_variable;
if ( var_info->type == VAR_INT )
return variable_data[var_info->var_no].num;
else if ( var_info->type == VAR_ARRAY )
return *getArrayPtr( var_info->var_no, var_info->array, 0 );
return 0;
}
void ScriptHandler::readVariable( bool reread_flag )
{
end_status = END_NONE;
current_variable.type = VAR_NONE;
if ( reread_flag ) next_script = current_script;
current_script = next_script;
char *buf = current_script;
SKIP_SPACE(buf);
bool ptr_flag = false;
if ( *buf == 'i' || *buf == 's' ){
ptr_flag = true;
buf++;
}
if ( *buf == '%' ){
buf++;
current_variable.var_no = parseInt(&buf);
if (current_variable.var_no < 0 ||
current_variable.var_no >= VARIABLE_RANGE)
current_variable.var_no = VARIABLE_RANGE;
current_variable.type = VAR_INT;
}
else if ( *buf == '?' ){
ArrayVariable av;
current_variable.var_no = parseArray( &buf, av );
current_variable.type = VAR_ARRAY;
current_variable.array = av;
}
else if ( *buf == '$' ){
buf++;
current_variable.var_no = parseInt(&buf);
if (current_variable.var_no < 0 ||
current_variable.var_no >= VARIABLE_RANGE)
current_variable.var_no = VARIABLE_RANGE;
current_variable.type = VAR_STR;
}
if (ptr_flag) current_variable.type |= VAR_PTR;
next_script = checkComma(buf);
}
void ScriptHandler::setInt( VariableInfo *var_info, int val, int offset )
{
if ( var_info->type & VAR_INT ){
setNumVariable( var_info->var_no + offset, val );
}
else if ( var_info->type & VAR_ARRAY ){
*getArrayPtr( var_info->var_no, var_info->array, offset ) = val;
}
else{
errorAndExit( "setInt: no variables." );
}
}
void ScriptHandler::pushVariable()
{
pushed_variable = current_variable;
}
void ScriptHandler::setNumVariable( int no, int val )
{
if ( no < 0 || no >= VARIABLE_RANGE )
no = VARIABLE_RANGE;
VariableData &vd = variable_data[no];
if ( vd.num_limit_flag ){
if ( val < vd.num_limit_lower ) val = vd.num;
else if ( val > vd.num_limit_upper ) val = vd.num;
}
vd.num = val;
}
int ScriptHandler::getStringFromInteger( char *buffer, int no, int num_column, bool is_zero_inserted )
{
int i, num_space=0, num_minus = 0;
if (no < 0){
num_minus = 1;
no = -no;
}
int num_digit=1, no2 = no;
while(no2 >= 10){
no2 /= 10;
num_digit++;
}
if (num_column < 0) num_column = num_digit+num_minus;
if (num_digit+num_minus <= num_column)
num_space = num_column - (num_digit+num_minus);
else{
for (i=0 ; i<num_digit+num_minus-num_column ; i++)
no /= 10;
num_digit -= num_digit+num_minus-num_column;
}
#if defined(ENABLE_1BYTE_CHAR) && defined(FORCE_1BYTE_CHAR)
if (num_minus == 1) no = -no;
char format[6];
if (is_zero_inserted)
sprintf(format, "%%0%dd", num_column);
else
sprintf(format, "%%%dd", num_column);
sprintf(buffer, format, no);
// Ensure length is multiple of full-width characters
if (num_column % 2) {
++num_column;
strcat(buffer, " ");
}
return num_column;
#else
int c = 0;
if (is_zero_inserted){
for (i=0 ; i<num_space ; i++){
buffer[c++] = ((char*)"０")[0];
buffer[c++] = ((char*)"０")[1];
}
}
else{
for (i=0 ; i<num_space ; i++){
buffer[c++] = ((char*)" ")[0];
buffer[c++] = ((char*)" ")[1];
}
}
if (num_minus == 1){
buffer[c++] = "－"[0];
buffer[c++] = "－"[1];
}
c = (num_column-1)*2;
char num_str[] = "０１２３４５６７８９";
for (i=0 ; i<num_digit ; i++){
buffer[c] = num_str[ no % 10 * 2];
buffer[c+1] = num_str[ no % 10 * 2 + 1];
no /= 10;
c -= 2;
}
buffer[num_column*2] = '\0';
return num_column*2;
#endif
}
int ScriptHandler::readScriptSub( FILE *fp, char **buf, int encrypt_mode )
{
char magic[5] = {0x79, 0x57, 0x0d, 0x80, 0x04 };
int magic_counter = 0;
bool newline_flag = true;
bool cr_flag = false;
if (encrypt_mode == 3 && !key_table_flag)
errorAndExit("readScriptSub: the EXE file must be specified with --key-exe option.");
size_t len=0, count=0;
while(1){
if (len == count){
len = fread(tmp_script_buf, 1, TMP_SCRIPT_BUF_LEN, fp);
if (len == 0){
if (cr_flag) *(*buf)++ = 0x0a;
break;
}
count = 0;
}
char ch = tmp_script_buf[count++];
if ( encrypt_mode == 1 ) ch ^= 0x84;
else if ( encrypt_mode == 2 ){
ch = (ch ^ magic[magic_counter++]) & 0xff;
if ( magic_counter == 5 ) magic_counter = 0;
}
else if ( encrypt_mode == 3){
ch = key_table[(unsigned char)ch] ^ 0x84;
}
if ( cr_flag && ch != 0x0a ){
*(*buf)++ = 0x0a;
newline_flag = true;
cr_flag = false;
}
if ( ch == '*' && newline_flag ) num_of_labels++;
if ( ch == 0x0d ){
cr_flag = true;
continue;
}
if ( ch == 0x0a ){
*(*buf)++ = 0x0a;
newline_flag = true;
cr_flag = false;
}
else{
*(*buf)++ = ch;
if ( ch != ' ' && ch != '\t' )
newline_flag = false;
}
}
*(*buf)++ = 0x0a;
return 0;
}
int ScriptHandler::readScript( DirPaths *path )
{
archive_path = path;
// Haeleth: Search for gameid file (this overrides any builtin
// ;gameid directive, or serves its purpose if none is available)
FILE *fp = fopen("game.id", "rb");
if (fp) {
size_t line_size = 0;
int c;
do {
c = fgetc(fp);
++line_size;
} while (c != '\r' && c != '\n' && c != EOF);
fseek(fp, 0, SEEK_SET);
game_identifier = new char[line_size];
fgets(game_identifier, line_size, fp);
fclose(fp);
}
fp = NULL;
char filename[10];
char *root = NULL;
int i, n=0, encrypt_mode = 0;
while ((fp == NULL) && (n<archive_path->get_num_paths())) {
root = archive_path->get_path(n);
if ((fp = fopen(root, "0.txt", "rb")) != NULL){
encrypt_mode = 0;
}
else if ((fp = fopen(root, "00.txt", "rb")) != NULL){
encrypt_mode = 0;
}
else if ((fp = fopen(root, "nscr_sec.dat", "rb")) != NULL){
encrypt_mode = 2;
}
else if ((fp = fopen(root, "nscript.___", "rb")) != NULL){
encrypt_mode = 3;
}
else if ((fp = fopen(root, "nscript.dat", "rb")) != NULL){
encrypt_mode = 1;
}
n++;
}
if (fp == NULL){
#ifdef MACOSX
// Note: \p Pascal strings require compilation with -fpascal-strings
StandardAlert( kAlertStopAlert, "\pMissing game data", "\pNo game data found. "
"This application must be run from a directory containing ONScripter game data.", NULL, NULL );
#else
fprintf( stderr, "can't open any of 0.txt, 00.txt, nscript.dat and nscript.___\n" );
#endif
return -1;
}
//printf("Using root path to script: %s\n", root);
fseek( fp, 0, SEEK_END );
int estimated_buffer_length = ftell( fp ) + 1;
if (encrypt_mode == 0){
fclose(fp);
for (i=1 ; i<100 ; i++){
sprintf(filename, "%d.txt", i);
if ((fp = fopen(root, filename, "rb")) == NULL){
sprintf(filename, "%02d.txt", i);
fp = fopen(root, filename, "rb");
}
if (fp){
fseek( fp, 0, SEEK_END );
estimated_buffer_length += ftell(fp)+1;
fclose(fp);
}
}
}
if ( script_buffer ) delete[] script_buffer;
script_buffer = new char[ estimated_buffer_length ];
char *p_script_buffer;
current_script = p_script_buffer = script_buffer;
tmp_script_buf = new char[TMP_SCRIPT_BUF_LEN];
if (encrypt_mode > 0){
fseek( fp, 0, SEEK_SET );
readScriptSub( fp, &p_script_buffer, encrypt_mode );
fclose( fp );
}
else{
for (i=0 ; i<100 ; i++){
sprintf(filename, "%d.txt", i);
if ((fp = fopen(root, filename, "rb")) == NULL){
sprintf(filename, "%02d.txt", i);
fp = fopen(root, filename, "rb");
}
if (fp){
readScriptSub( fp, &p_script_buffer, 0 );
fclose(fp);
}
}
}
delete[] tmp_script_buf;
script_buffer_length = p_script_buffer - script_buffer;
game_hash = script_buffer_length; // Good hash value