void ONScripter::executeSystemMenu()
{
    current_font = &menu_font;

    if ( menuselectvoice_file_name[MENUSELECTVOICE_OPEN] )
        playSound(menuselectvoice_file_name[MENUSELECTVOICE_OPEN],
                  SOUND_CHUNK, false, MIX_WAVE_CHANNEL);

    text_info.fill( 0, 0, 0, 0 );
    flush( refreshMode() );

    menu_font.num_xy[0] = rmenu_link_width;
    menu_font.num_xy[1] = rmenu_link_num;
    menu_font.top_xy[0] = (screen_width * screen_ratio2 / screen_ratio1 - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (screen_height * screen_ratio2 / screen_ratio1  - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY( (menu_font.num_xy[0] - rmenu_link_width) / 2,
                     (menu_font.num_xy[1] - rmenu_link_num) / 2 );

    RMenuLink *link = root_rmenu_link.next;
    int counter = 1;
    while( link ){
        ButtonLink *button = getSelectableSentence( link->label, &menu_font, false );
        root_button_link.insert( button );
        button->no = counter++;

        link = link->next;
        flush( refreshMode() );
    }

    flushEvent();
    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    do waitEventSub(-1);
    while (current_button_state.button == 0);

    deleteButtonLink();

    if ( current_button_state.button == -1 ){
        if ( menuselectvoice_file_name[MENUSELECTVOICE_CANCEL] )
            playSound(menuselectvoice_file_name[MENUSELECTVOICE_CANCEL], 
                      SOUND_CHUNK, false, MIX_WAVE_CHANNEL);
        leaveSystemCall();
        return;
    }
    
    if ( menuselectvoice_file_name[MENUSELECTVOICE_CLICK] )
        playSound(menuselectvoice_file_name[MENUSELECTVOICE_CLICK], 
                  SOUND_CHUNK, false, MIX_WAVE_CHANNEL);

    link = root_rmenu_link.next;
    counter = 1;
    while ( link ){
        if ( current_button_state.button == counter++ ){
            system_menu_mode = link->system_call_no;
            break;
        }
        link = link->next;
    }
}
void ONScripterLabel::executeWindowErase()
{
    if (windowchip_sprite_no >= 0)
        sprite_info[windowchip_sprite_no].visible = false;

#if 0 //windoweffect w/windowerase broken currently FIXME
    refreshSurface(effect_dst_surface, NULL,
                   mode_saya_flag ? REFRESH_SAYA_MODE : REFRESH_NORMAL_MODE);

    //use the windoweffect when executing the erase
    int shelter_menu_mode = system_menu_mode;
    system_menu_mode = SYSTEM_NULL;  //prevents infinite event looping
    if (!setEffect(&window_effect, false, false)) {
        while(doEffect(&window_effect, false));
    }
    system_menu_mode = shelter_menu_mode;
#else
    display_mode = DISPLAY_MODE_NORMAL;
    flush(mode_saya_flag ? REFRESH_SAYA_MODE : REFRESH_NORMAL_MODE);
#endif

    event_mode = WAIT_TIMER_MODE | WAIT_BUTTON_MODE;
    waitEventSub(-1);

    if (windowchip_sprite_no >= 0)
        sprite_info[windowchip_sprite_no].visible = true;

    leaveSystemCall();
}
bool ONScripter::waitEvent( int count )
{
    while(1){
        waitEventSub( count );
        if ( system_menu_mode == SYSTEM_NULL ) break;
        int ret = executeSystemCall();
        if      (ret == 1) return true;
        else if (ret == 2) return false;
    }

    return false;
}
void ONScripter::executeWindowErase()
{
    if (windowchip_sprite_no >= 0)
        sprite_info[windowchip_sprite_no].visible = false;

    display_mode = DISPLAY_MODE_NORMAL;
    flush(mode_saya_flag ? REFRESH_SAYA_MODE : REFRESH_NORMAL_MODE);

    event_mode = WAIT_TIMER_MODE | WAIT_BUTTON_MODE;
    waitEventSub(-1);
        
    if (windowchip_sprite_no >= 0)
        sprite_info[windowchip_sprite_no].visible = true;

    leaveSystemCall();
}
void ONScripter::executeSystemLookback()
{
    int i;
    uchar3 color;
    
    current_font = &sentence_font;

    current_page = current_page->previous;
    if ( current_page->text_count == 0 ){
        if ( lookback_sp[0] >= 0 )
            sprite_info[ lookback_sp[0] ].visible = false;
        if ( lookback_sp[1] >= 0 )
            sprite_info[ lookback_sp[1] ].visible = false;
        leaveSystemCall();
        return;
    }

    while(1){
        setupLookbackButton();
        refreshMouseOverButton();

        dirty_rect.fill( screen_width, screen_height );
        flush( refreshMode() & ~REFRESH_TEXT_MODE);

        for ( i=0 ; i<3 ; i++ ){
            color[i] = sentence_font.color[i];
            sentence_font.color[i] = lookback_color[i];
        }
        restoreTextBuffer(accumulation_surface);
        for ( i=0 ; i<3 ; i++ ) sentence_font.color[i] = color[i];
        flush( REFRESH_NONE_MODE );

        event_mode = WAIT_BUTTON_MODE;
        waitEventSub(-1);
    
        if ( current_button_state.button == 0 ||
             ( current_page == start_page &&
               current_button_state.button == -2 ) ){
            continue;
        }
        if ( current_button_state.button == -1 ||
             ( current_button_state.button == -3 &&
               current_page->next == cached_page ) ||
             current_button_state.button <= -4 )
        {
            event_mode = IDLE_EVENT_MODE;
            deleteButtonLink();
            if ( lookback_sp[0] >= 0 )
                sprite_info[ lookback_sp[0] ].visible = false;
            if ( lookback_sp[1] >= 0 )
                sprite_info[ lookback_sp[1] ].visible = false;
            leaveSystemCall();
            return;
        }
        
        if ( current_button_state.button == 1 ||
             current_button_state.button == -2 ){
            current_page = current_page->previous;
        }
        else
            current_page = current_page->next;
    }
}
bool ONScripter::executeSystemYesNo( int caller, int file_no )
{
    current_font = &menu_font;

    text_info.fill( 0, 0, 0, 0 );
    dirty_rect.fill( screen_width, screen_height );

    char name[64] = {'\0'};
    if ( caller == SYSTEM_SAVE ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, file_no );
        sprintf( name, MESSAGE_SAVE_CONFIRM,
                 save_item_name,
                 save_file_info.sjis_no );
    }
    else if ( caller == SYSTEM_LOAD ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, file_no );
        sprintf( name, MESSAGE_LOAD_CONFIRM,
                 save_item_name,
                 save_file_info.sjis_no );
    }
    else if ( caller ==  SYSTEM_RESET )
        strcpy( name, MESSAGE_RESET_CONFIRM );
    else if ( caller ==  SYSTEM_END )
        strcpy( name, MESSAGE_END_CONFIRM );
        
        
    menu_font.num_xy[0] = strlen(name)/2;
    menu_font.num_xy[1] = 3;
    menu_font.top_xy[0] = (screen_width * screen_ratio2 / screen_ratio1 - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (screen_height * screen_ratio2 / screen_ratio1  - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY(0, 0);
    uchar3 color = {0xff, 0xff, 0xff};
    drawString( name, color, &menu_font, true, accumulation_surface, NULL, &text_info );

    flush( refreshMode() );
        
    int offset1 = strlen(name)/5;
    int offset2 = strlen(name)/2 - offset1;
    strcpy( name, MESSAGE_YES );
    menu_font.setXY(offset1-2, 2);
    ButtonLink *button = getSelectableSentence( name, &menu_font, false );
    root_button_link.insert( button );
    button->no = 1;

    strcpy( name, MESSAGE_NO );
    menu_font.setXY(offset2, 2);
    button = getSelectableSentence( name, &menu_font, false );
    root_button_link.insert( button );
    button->no = 2;
        
    flush( refreshMode() );
        
    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    do waitEventSub(-1);
    while (current_button_state.button == 0);
        
    deleteButtonLink();

    if ( current_button_state.button == 1 ){ // yes is selected
        if ( menuselectvoice_file_name[MENUSELECTVOICE_YES] )
            playSound(menuselectvoice_file_name[MENUSELECTVOICE_YES],
                      SOUND_CHUNK, false, MIX_WAVE_CHANNEL);
        return true;
    }
    else{
        if ( menuselectvoice_file_name[MENUSELECTVOICE_NO] )
            playSound(menuselectvoice_file_name[MENUSELECTVOICE_NO],
                      SOUND_CHUNK, false, MIX_WAVE_CHANNEL);
        return false;
    }
}
void ONScripter::executeSystemSave()
{
    current_font = &menu_font;

    text_info.fill( 0, 0, 0, 0 );

    menu_font.num_xy[0] = (strlen(save_item_name)+1)/2+2+13;
    menu_font.num_xy[1] = num_save_file+2;
    menu_font.top_xy[0] = (screen_width * screen_ratio2 / screen_ratio1 - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (screen_height * screen_ratio2 / screen_ratio1  - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY((menu_font.num_xy[0] - strlen( save_menu_name ) / 2 ) / 2, 0);
    uchar3 color = {0xff, 0xff, 0xff};
    drawString( save_menu_name, color, &menu_font, true, accumulation_surface, NULL, &text_info );
    menu_font.newLine();
    menu_font.newLine();
        
    flush( refreshMode() );
        
    bool nofile_flag;
    char *buffer = new char[ strlen( save_item_name ) + 31 + 1 ];
    
    for ( unsigned int i=1 ; i<=num_save_file ; i++ ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, i );
        menu_font.setXY( (menu_font.num_xy[0] - (strlen( save_item_name ) / 2 + 15) ) / 2 );

        if ( save_file_info.valid ){
            sprintf( buffer, MESSAGE_SAVE_EXIST,
                     save_item_name,
                     save_file_info.sjis_no,
                     save_file_info.sjis_month,
                     save_file_info.sjis_day,
                     save_file_info.sjis_hour,
                     save_file_info.sjis_minute );
            nofile_flag = false;
        }
        else{
            sprintf( buffer, MESSAGE_SAVE_EMPTY,
                     save_item_name,
                     save_file_info.sjis_no );
            nofile_flag = true;
        }
        ButtonLink *button = getSelectableSentence( buffer, &menu_font, false, nofile_flag );
        root_button_link.insert( button );
        button->no = i;
        flush( refreshMode() );
    }
    delete[] buffer;

    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    do waitEventSub(-1);
    while (current_button_state.button == 0);

    deleteButtonLink();

    if ( current_button_state.button > 0 ){
        int file_no = current_button_state.button;
        if (executeSystemYesNo( SYSTEM_SAVE, file_no )){
            if (saveon_flag && internal_saveon_flag) saveSaveFile(-1);
            saveSaveFile( file_no );
            leaveSystemCall();
        }
        return;
    }

    leaveSystemCall();
}
bool ONScripter::executeSystemLoad()
{
    current_font = &menu_font;

    text_info.fill( 0, 0, 0, 0 );
        
    menu_font.num_xy[0] = (strlen(save_item_name)+1)/2+2+13;
    menu_font.num_xy[1] = num_save_file+2;
    menu_font.top_xy[0] = (screen_width * screen_ratio2 / screen_ratio1 - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (screen_height * screen_ratio2 / screen_ratio1  - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY( (menu_font.num_xy[0] - strlen( load_menu_name ) / 2) / 2, 0 );
    uchar3 color = {0xff, 0xff, 0xff};
    drawString( load_menu_name, color, &menu_font, true, accumulation_surface, NULL, &text_info );
    menu_font.newLine();
    menu_font.newLine();
        
    flush( refreshMode() );
        
    bool nofile_flag;
    char *buffer = new char[ strlen( save_item_name ) + 31 + 1 ];

    SaveFileInfo save_file_info;
    for ( unsigned int i=1 ; i<=num_save_file ; i++ ){
        searchSaveFile( save_file_info, i );
        menu_font.setXY( (menu_font.num_xy[0] - (strlen( save_item_name ) / 2 + 15) ) / 2 );

        if ( save_file_info.valid ){
            sprintf( buffer, MESSAGE_SAVE_EXIST,
                     save_item_name,
                     save_file_info.sjis_no,
                     save_file_info.sjis_month,
                     save_file_info.sjis_day,
                     save_file_info.sjis_hour,
                     save_file_info.sjis_minute );
            nofile_flag = false;
        }
        else{
            sprintf( buffer, MESSAGE_SAVE_EMPTY,
                     save_item_name,
                     save_file_info.sjis_no );
            nofile_flag = true;
        }
        ButtonLink *button = getSelectableSentence( buffer, &menu_font, false, nofile_flag );
        root_button_link.insert( button );
        button->no = i;
        flush( refreshMode() );
    }
    delete[] buffer;

    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    int file_no = 0;
    while(1){
        waitEventSub(-1);

        if ( current_button_state.button > 0 ){
            file_no = current_button_state.button;
            searchSaveFile( save_file_info, file_no );
            if ( !save_file_info.valid ) continue;
        }

        if (current_button_state.button != 0) break;
    }

    if ( current_button_state.button > 0 ){
        deleteButtonLink();

        if (executeSystemYesNo( SYSTEM_LOAD, file_no )){
            current_font = &sentence_font;
            system_menu_mode = NULL; // for fadeout in mp3stopCommand()
            if ( loadSaveFile( file_no ) )
                return false;

            leaveSystemCall( false );
            refreshSurface(backup_surface, NULL, REFRESH_NORMAL_MODE);
            saveon_flag = true;
            internal_saveon_flag = true;
            text_on_flag = false;
            indent_offset = 0;
            line_enter_status = 0;
            page_enter_status = 0;
            string_buffer_offset = 0;
            break_flag = false;

            flushEvent();

            if (loadgosub_label)
                gosubReal( loadgosub_label, script_h.getCurrent() );

            return true;
        }

        return false;
    }

    deleteButtonLink();
    leaveSystemCall();
    
    return false;
}
bool ONScripterLabel::executeSystemYesNo( int caller, int file_no )
{
    current_font = &menu_font;

    text_info.fill( 0, 0, 0, 0 );
    dirty_rect.fill( screen_width, screen_height );

    char name[64] = {'\0'};

    if ( caller == SYSTEM_SAVE ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, file_no );
        sprintf( name, getMessageString(MESSAGE_SAVE_CONFIRM),
                 save_item_name,
                 save_file_info.sjis_no );
    }
    else if ( caller == SYSTEM_LOAD ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, file_no );
        sprintf( name, getMessageString(MESSAGE_LOAD_CONFIRM),
                 save_item_name,
                 save_file_info.sjis_no );
    }
    else if ( caller ==  SYSTEM_RESET )
        strcpy( name, getMessageString(MESSAGE_RESET_CONFIRM) );
    else if ( caller ==  SYSTEM_END )
        strcpy( name, getMessageString(MESSAGE_END_CONFIRM) );


    menu_font.num_xy[0] = strlen(name)/2;
    menu_font.num_xy[1] = 3;
    menu_font.top_xy[0] = (ContractPos(screen_width) - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (ContractPos(screen_height) - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY(0, 0);
    //Mion: fixed the menu title bug noted in the past by Seung Park:
    // the menu title must be drawn close to last during refresh,
    // not in the textwindow, since there could be sprites above the
    // window if windowback is used.
    if (system_menu_title){
        dirty_rect.add( system_menu_title->pos );
        delete system_menu_title;
        system_menu_title = NULL;
    }
    system_menu_title = getSentence( name, &menu_font, 1, false );

    flush( refreshMode() );

    int offset1 = strlen(name)/5;
    int offset2 = strlen(name)/2 - offset1;
    strcpy( name, getMessageString(MESSAGE_YES) );
    menu_font.setXY(offset1-2, 2);
    ButtonLink *button = getSelectableSentence( name, &menu_font, false );
    root_button_link.insert( button );
    button->no = 1;

    strcpy( name, getMessageString(MESSAGE_NO) );
    menu_font.setXY(offset2, 2);
    button = getSelectableSentence( name, &menu_font, false );
    root_button_link.insert( button );
    button->no = 2;

    flush( refreshMode() );

    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    do waitEventSub(-1);
    while (current_button_state.button == 0);

    deleteButtonLink();
    if (system_menu_title){
        dirty_rect.add( system_menu_title->pos );
        delete system_menu_title;
        system_menu_title = NULL;
    }

    if ( current_button_state.button == 1 ){ // yes is selected
        if ( menuselectvoice_file_name[MENUSELECTVOICE_YES] )
            playSound(menuselectvoice_file_name[MENUSELECTVOICE_YES],
                      SOUND_WAVE|SOUND_OGG, false, MIX_WAVE_CHANNEL);
        return true;
    }
    else{
        if ( menuselectvoice_file_name[MENUSELECTVOICE_NO] )
            playSound(menuselectvoice_file_name[MENUSELECTVOICE_NO],
                      SOUND_WAVE|SOUND_OGG, false, MIX_WAVE_CHANNEL);
        return false;
    }
}
void ONScripterLabel::executeSystemSave()
{
    current_font = &menu_font;

    text_info.fill( 0, 0, 0, 0 );

    menu_font.num_xy[0] = (strlen(save_item_name)+1)/2+2+13;
    menu_font.num_xy[1] = num_save_file+2;
    menu_font.top_xy[0] = (ContractPos(screen_width) - menu_font.num_xy[0] * menu_font.pitch_xy[0]) / 2;
    menu_font.top_xy[1] = (ContractPos(screen_height) - menu_font.num_xy[1] * menu_font.pitch_xy[1]) / 2;
    menu_font.setXY((menu_font.num_xy[0] - (strlen( save_menu_name )+1) / 2 ) / 2, 0);
    //Mion: fixed the menu title bug noted in the past by Seung Park:
    // the menu title must be drawn close to last during refresh,
    // not in the textwindow, since there could be sprites above the
    // window if windowback is used.
    if (system_menu_title){
        dirty_rect.add( system_menu_title->pos );
        delete system_menu_title;
        system_menu_title = NULL;
    }
    system_menu_title = getSentence( save_menu_name, &menu_font, 1, false );
    menu_font.newLine();

    flush( refreshMode() );

    bool nofile_flag;
    int slen = strlen(save_item_name);
    char *buffer = new char[ slen + (slen % 2) + 30 + 3 ];

    for ( unsigned int i=1 ; i<=num_save_file ; i++ ){
        SaveFileInfo save_file_info;
        searchSaveFile( save_file_info, i );
        menu_font.setXY( (menu_font.num_xy[0] - ((strlen( save_item_name )+1) / 2 + 15) ) / 2 );

        if ( save_file_info.valid ){
            sprintf( buffer, getMessageString(MESSAGE_SAVE_EXIST),
                     save_item_name,
                     save_file_info.sjis_no,
                     save_file_info.sjis_month,
                     save_file_info.sjis_day,
                     save_file_info.sjis_hour,
                     save_file_info.sjis_minute );
            nofile_flag = false;
        }
        else{
            sprintf( buffer, getMessageString(MESSAGE_SAVE_EMPTY),
                     save_item_name,
                     save_file_info.sjis_no );
            nofile_flag = true;
        }
        ButtonLink *button = getSelectableSentence( buffer, &menu_font, false, nofile_flag );
        root_button_link.insert( button );
        button->no = i;
        flush( refreshMode() );
    }
    delete[] buffer;

    refreshMouseOverButton();

    event_mode = WAIT_BUTTON_MODE;
    do waitEventSub(-1);
    while (current_button_state.button == 0);

    deleteButtonLink();
    if (system_menu_title){
        dirty_rect.add( system_menu_title->pos );
        delete system_menu_title;
        system_menu_title = NULL;
    }

    if ( current_button_state.button > 0 ){
        int file_no = current_button_state.button;
        if (executeSystemYesNo( SYSTEM_SAVE, file_no )){
            saveSaveFile( file_no );
            leaveSystemCall();
        }
        return;
    }

    leaveSystemCall();
}