Esempio n. 1
0
void inventory::restack(player *p)
{
    // tasks that the old restack seemed to do:
    // 1. reassign inventory letters
    // 2. remove items from non-matching stacks
    // 3. combine matching stacks

    if (!p) {
        return;
    }

    std::list<item> to_restack;
    int idx = 0;
    for (invstack::iterator iter = items.begin(); iter != items.end(); ++iter, ++idx) {
        std::list<item> &stack = *iter;
        item &topmost = stack.front();

        const int ipos = p->invlet_to_position(topmost.invlet);
        if( !inv_chars.valid( topmost.invlet ) || ( ipos != INT_MIN && ipos != idx ) ) {
            assign_empty_invlet(topmost);
            for( std::list<item>::iterator stack_iter = stack.begin();
                 stack_iter != stack.end(); ++stack_iter ) {
                stack_iter->invlet = topmost.invlet;
            }
        }

        // remove non-matching items, stripping off end of stack so the first item keeps the invlet.
        while( stack.size() > 1 && !topmost.stacks_with(stack.back()) ) {
            to_restack.splice(to_restack.begin(), *iter, --stack.end());
        }
    }

    // combine matching stacks
    // separate loop to ensure that ALL stacks are homogeneous
    for (invstack::iterator iter = items.begin(); iter != items.end(); ++iter) {
        for (invstack::iterator other = iter; other != items.end(); ++other) {
            if (iter != other && iter->front().stacks_with( other->front() ) ) {
                if( other->front().count_by_charges() ) {
                    iter->front().charges += other->front().charges;
                } else {
                    iter->splice(iter->begin(), *other);
                }
                other = items.erase(other);
                --other;
            }
        }
    }

    //re-add non-matching items
    for( auto &elem : to_restack ) {
        add_item( elem );
    }

    //Ensure that all items in the same stack have the same invlet.
    for( std::list< item > &outer : items ) {
        for( item &inner : outer ) {
            inner.invlet = outer.front().invlet;
        }
    }
}
Esempio n. 2
0
void player::power_bionics()
{
    std::vector <bionic *> passive = filtered_bionics( *my_bionics, TAB_PASSIVE );
    std::vector <bionic *> active = filtered_bionics( *my_bionics, TAB_ACTIVE );
    bionic *bio_last = NULL;
    bionic_tab_mode tab_mode = TAB_ACTIVE;

    //added title_tab_height for the tabbed bionic display
    int TITLE_HEIGHT = 2;
    int TITLE_TAB_HEIGHT = 3;

    // Main window
    /** Total required height is:
     * top frame line:                                         + 1
     * height of title window:                                 + TITLE_HEIGHT
     * height of tabs:                                         + TITLE_TAB_HEIGHT
     * height of the biggest list of active/passive bionics:   + bionic_count
     * bottom frame line:                                      + 1
     * TOTAL: TITLE_HEIGHT + TITLE_TAB_HEIGHT + bionic_count + 2
     */
    const int HEIGHT = std::min( TERMY,
                                 std::max( FULL_SCREEN_HEIGHT,
                                           TITLE_HEIGHT + TITLE_TAB_HEIGHT +
                                           ( int )my_bionics->size() + 2 ) );
    const int WIDTH = FULL_SCREEN_WIDTH + ( TERMX - FULL_SCREEN_WIDTH ) / 2;
    const int START_X = ( TERMX - WIDTH ) / 2;
    const int START_Y = ( TERMY - HEIGHT ) / 2;
    //wBio is the entire bionic window
    catacurses::window wBio = catacurses::newwin( HEIGHT, WIDTH, START_Y, START_X );

    const int LIST_HEIGHT = HEIGHT - TITLE_HEIGHT - TITLE_TAB_HEIGHT - 2;

    const int DESCRIPTION_WIDTH = WIDTH - 2 - 40;
    const int DESCRIPTION_START_Y = START_Y + TITLE_HEIGHT + TITLE_TAB_HEIGHT + 1;
    const int DESCRIPTION_START_X = START_X + 1 + 40;
    //w_description is the description panel that is controlled with ! key
    catacurses::window w_description = catacurses::newwin( LIST_HEIGHT, DESCRIPTION_WIDTH,
                                       DESCRIPTION_START_Y, DESCRIPTION_START_X );

    // Title window
    const int TITLE_START_Y = START_Y + 1;
    const int HEADER_LINE_Y = TITLE_HEIGHT + TITLE_TAB_HEIGHT + 1;
    catacurses::window w_title = catacurses::newwin( TITLE_HEIGHT, WIDTH - 2, TITLE_START_Y,
                                 START_X + 1 );

    const int TAB_START_Y = TITLE_START_Y + 2;
    //w_tabs is the tab bar for passive and active bionic groups
    catacurses::window w_tabs = catacurses::newwin( TITLE_TAB_HEIGHT, WIDTH - 2, TAB_START_Y,
                                START_X + 1 );

    int scroll_position = 0;
    int cursor = 0;

    //generate the tab title string and a count of the bionics owned
    bionic_menu_mode menu_mode = ACTIVATING;
    // offset for display: bionic with index i is drawn at y=list_start_y+i
    // drawing the bionics starts with bionic[scroll_position]
    const int list_start_y = HEADER_LINE_Y;// - scroll_position;
    int half_list_view_location = LIST_HEIGHT / 2;
    int max_scroll_position = std::max( 0, ( int )active.size() );

    input_context ctxt( "BIONICS" );
    ctxt.register_updown();
    ctxt.register_action( "ANY_INPUT" );
    ctxt.register_action( "TOGGLE_EXAMINE" );
    ctxt.register_action( "REASSIGN" );
    ctxt.register_action( "REMOVE" );
    ctxt.register_action( "NEXT_TAB" );
    ctxt.register_action( "PREV_TAB" );
    ctxt.register_action( "CONFIRM" );
    ctxt.register_action( "HELP_KEYBINDINGS" );

    bool recalc = false;
    bool redraw = true;

    for( ;; ) {
        if( recalc ) {
            passive = filtered_bionics( *my_bionics, TAB_PASSIVE );
            active = filtered_bionics( *my_bionics, TAB_ACTIVE );

            if( active.empty() && !passive.empty() ) {
                tab_mode = TAB_PASSIVE;
            }

            if( --cursor < 0 ) {
                cursor = 0;
            }
            if( scroll_position > max_scroll_position &&
                cursor - scroll_position < LIST_HEIGHT - half_list_view_location ) {
                scroll_position--;
            }

            recalc = false;
            // bionics were modified, so it's necessary to redraw the screen
            redraw = true;
        }

        //track which list we are looking at
        std::vector<bionic *> *current_bionic_list = ( tab_mode == TAB_ACTIVE ? &active : &passive );
        max_scroll_position = std::max( 0, ( int )current_bionic_list->size() - LIST_HEIGHT );

        if( redraw ) {
            redraw = false;

            werase( wBio );
            draw_border( wBio, BORDER_COLOR, _( " BIONICS " ) );
            // Draw symbols to connect additional lines to border
            mvwputch( wBio, HEADER_LINE_Y - 1, 0, BORDER_COLOR, LINE_XXXO ); // |-
            mvwputch( wBio, HEADER_LINE_Y - 1, WIDTH - 1, BORDER_COLOR, LINE_XOXX ); // -|

            int max_width = 0;
            std::vector<std::string>bps;
            for( int i = 0; i < num_bp; ++i ) {
                const body_part bp = bp_aBodyPart[i];
                const int total = get_total_bionics_slots( bp );
                const std::string s = string_format( "%s: %d/%d",
                                                     body_part_name_as_heading( bp, 1 ).c_str(),
                                                     total - get_free_bionics_slots( bp ), total );
                bps.push_back( s );
                max_width = std::max( max_width, utf8_width( s ) );
            }
            const int pos_x = WIDTH - 2 - max_width;
            if( g->u.has_trait( trait_id( "DEBUG_CBM_SLOTS" ) ) ) {
                for( int i = 0; i < num_bp; ++i ) {
                    mvwprintz( wBio, i + list_start_y, pos_x, c_light_gray, bps[i] );
                }
            }

            if( current_bionic_list->empty() ) {
                std::string msg;
                switch( tab_mode ) {
                    case TAB_ACTIVE:
                        msg = _( "No activatable bionics installed." );
                        break;
                    case TAB_PASSIVE:
                        msg = _( "No passive bionics installed." );
                        break;
                }
                fold_and_print( wBio, list_start_y, 2, pos_x - 1, c_light_gray, msg );
            } else {
                for( size_t i = scroll_position; i < current_bionic_list->size(); i++ ) {
                    if( list_start_y + static_cast<int>( i ) - scroll_position == HEIGHT - 1 ) {
                        break;
                    }
                    const bool is_highlighted = cursor == static_cast<int>( i );
                    const nc_color col = get_bionic_text_color( *( *current_bionic_list )[i],
                                         is_highlighted );
                    const std::string desc = string_format( "%c %s", ( *current_bionic_list )[i]->invlet,
                                                            build_bionic_powerdesc_string(
                                                                    *( *current_bionic_list )[i] ).c_str() );
                    trim_and_print( wBio, list_start_y + i - scroll_position, 2, WIDTH - 3, col,
                                    desc );
                    if( is_highlighted && menu_mode != EXAMINING && g->u.has_trait( trait_id( "DEBUG_CBM_SLOTS" ) ) ) {
                        const bionic_id bio_id = ( *current_bionic_list )[i]->id;
                        draw_connectors( wBio, list_start_y + i - scroll_position, utf8_width( desc ) + 3,
                                         pos_x - 2, bio_id );

                        // redraw highlighted (occupied) body parts
                        for( auto &elem : bio_id->occupied_bodyparts ) {
                            const int i = static_cast<int>( elem.first );
                            mvwprintz( wBio, i + list_start_y, pos_x, c_yellow, bps[i] );
                        }
                    }

                }
            }

            draw_scrollbar( wBio, cursor, LIST_HEIGHT, current_bionic_list->size(), list_start_y );
        }
        wrefresh( wBio );
        draw_bionics_tabs( w_tabs, active.size(), passive.size(), tab_mode );
        draw_bionics_titlebar( w_title, this, menu_mode );
        if( menu_mode == EXAMINING && !current_bionic_list->empty() ) {
            draw_description( w_description, *( *current_bionic_list )[cursor] );
        }

        const std::string action = ctxt.handle_input();
        const long ch = ctxt.get_raw_input().get_first_input();
        bionic *tmp = NULL;
        bool confirmCheck = false;

        if( action == "DOWN" ) {
            redraw = true;
            if( static_cast<size_t>( cursor ) < current_bionic_list->size() - 1 ) {
                cursor++;
            } else {
                cursor = 0;
            }
            if( scroll_position < max_scroll_position &&
                cursor - scroll_position > LIST_HEIGHT - half_list_view_location ) {
                scroll_position++;
            }
            if( scroll_position > 0 && cursor - scroll_position < half_list_view_location ) {
                scroll_position = std::max( cursor - half_list_view_location, 0 );
            }
        } else if( action == "UP" ) {
            redraw = true;
            if( cursor > 0 ) {
                cursor--;
            } else {
                cursor = current_bionic_list->size() - 1;
            }
            if( scroll_position > 0 && cursor - scroll_position < half_list_view_location ) {
                scroll_position--;
            }
            if( scroll_position < max_scroll_position &&
                cursor - scroll_position > LIST_HEIGHT - half_list_view_location ) {
                scroll_position =
                    std::max( std::min<int>( current_bionic_list->size() - LIST_HEIGHT,
                                             cursor - half_list_view_location ), 0 );
            }
        } else if( menu_mode == REASSIGNING ) {
            menu_mode = ACTIVATING;

            if( action == "CONFIRM" && !current_bionic_list->empty() ) {
                auto &bio_list = tab_mode == TAB_ACTIVE ? active : passive;
                tmp = bio_list[cursor];
            } else {
                tmp = bionic_by_invlet( ch );
            }

            if( tmp == nullptr ) {
                // Selected an non-existing bionic (or Escape, or ...)
                continue;
            }
            redraw = true;
            const long newch = popup_getkey( _( "%s; enter new letter. Space to clear. Esc to cancel." ),
                                             tmp->id->name.c_str() );
            wrefresh( wBio );
            if( newch == ch || newch == KEY_ESCAPE ) {
                continue;
            }
            if( newch == ' ' ) {
                tmp->invlet = ' ';
                continue;
            }
            if( !bionic_chars.valid( newch ) ) {
                popup( _( "Invalid bionic letter. Only those characters are valid:\n\n%s" ),
                       bionic_chars.get_allowed_chars().c_str() );
                continue;
            }
            bionic *otmp = bionic_by_invlet( newch );
            if( otmp != nullptr ) {
                std::swap( tmp->invlet, otmp->invlet );
            } else {
                tmp->invlet = newch;
            }
            // TODO: show a message like when reassigning a key to an item?
        } else if( action == "NEXT_TAB" ) {
            redraw = true;
            scroll_position = 0;
            cursor = 0;
            if( tab_mode == TAB_ACTIVE ) {
                tab_mode = TAB_PASSIVE;
            } else {
                tab_mode = TAB_ACTIVE;
            }
        } else if( action == "PREV_TAB" ) {
            redraw = true;
            scroll_position = 0;
            cursor = 0;
            if( tab_mode == TAB_PASSIVE ) {
                tab_mode = TAB_ACTIVE;
            } else {
                tab_mode = TAB_PASSIVE;
            }
        } else if( action == "REASSIGN" ) {
            menu_mode = REASSIGNING;
        } else if( action == "TOGGLE_EXAMINE" ) { // switches between activation and examination
            menu_mode = menu_mode == ACTIVATING ? EXAMINING : ACTIVATING;
            redraw = true;
        } else if( action == "REMOVE" ) {
            menu_mode = REMOVING;
            redraw = true;
        } else if( action == "HELP_KEYBINDINGS" ) {
            redraw = true;
        } else if( action == "CONFIRM" ) {
            confirmCheck = true;
        } else {
            confirmCheck = true;
        }
        //confirmation either occurred by pressing enter where the bionic cursor is, or the hotkey was selected
        if( confirmCheck ) {
            auto &bio_list = tab_mode == TAB_ACTIVE ? active : passive;
            if( action == "CONFIRM" && !current_bionic_list->empty() ) {
                tmp = bio_list[cursor];
            } else {
                tmp = bionic_by_invlet( ch );
                if( tmp && tmp != bio_last ) {
                    // new bionic selected, update cursor and scroll position
                    int temp_cursor = 0;
                    for( temp_cursor = 0; temp_cursor < ( int )bio_list.size(); temp_cursor++ ) {
                        if( bio_list[temp_cursor] == tmp ) {
                            break;
                        }
                    }
                    // if bionic is not found in current list, ignore the attempt to view/activate
                    if( temp_cursor >= ( int )bio_list.size() ) {
                        continue;
                    }
                    //relocate cursor to the bionic that was found
                    cursor = temp_cursor;
                    scroll_position = 0;
                    while( scroll_position < max_scroll_position &&
                           cursor - scroll_position > LIST_HEIGHT - half_list_view_location ) {
                        scroll_position++;
                    }
                }
            }
            if( !tmp ) {
                // entered a key that is not mapped to any bionic,
                // -> leave screen
                break;
            }
            bio_last = tmp;
            const bionic_id &bio_id = tmp->id;
            const bionic_data &bio_data = bio_id.obj();
            if( menu_mode == REMOVING ) {
                recalc = uninstall_bionic( bio_id );
                redraw = true;
                continue;
            }
            if( menu_mode == ACTIVATING ) {
                if( bio_data.activated ) {
                    int b = tmp - &( *my_bionics )[0];
                    if( tmp->powered ) {
                        deactivate_bionic( b );
                    } else {
                        activate_bionic( b );
                        // Clear the menu if we are firing a bionic gun
                        if( tmp->info().gun_bionic ) {
                            break;
                        }
                    }
                    // update message log and the menu
                    g->refresh_all();
                    redraw = true;
                    if( moves < 0 ) {
                        return;
                    }
                    continue;
                } else {
                    popup( _( "You can not activate %s!\n"
                              "To read a description of %s, press '!', then '%c'." ), bio_data.name.c_str(),
                           bio_data.name.c_str(), tmp->invlet );
                    redraw = true;
                }
            } else if( menu_mode == EXAMINING ) { // Describing bionics, allow user to jump to description key
                redraw = true;
                if( action != "CONFIRM" ) {
                    for( size_t i = 0; i < active.size(); i++ ) {
                        if( active[i] == tmp ) {
                            tab_mode = TAB_ACTIVE;
                            cursor = static_cast<int>( i );
                            int max_scroll_check = std::max( 0, ( int )active.size() - LIST_HEIGHT );
                            if( static_cast<int>( i ) > max_scroll_check ) {
                                scroll_position = max_scroll_check;
                            } else {
                                scroll_position = i;
                            }
                            break;
                        }
                    }
                    for( size_t i = 0; i < passive.size(); i++ ) {
                        if( passive[i] == tmp ) {
                            tab_mode = TAB_PASSIVE;
                            cursor = static_cast<int>( i );
                            int max_scroll_check = std::max( 0, ( int )passive.size() - LIST_HEIGHT );
                            if( static_cast<int>( i ) > max_scroll_check ) {
                                scroll_position = max_scroll_check;
                            } else {
                                scroll_position = i;
                            }
                            break;
                        }
                    }
                }
            }
        }
    }
}
Esempio n. 3
0
void player::power_mutations()
{
    if( !is_player() ) {
        // TODO: Implement NPCs activating muts
        return;
    }

    std::vector <std::string> passive;
    std::vector <std::string> active;
    for( auto &mut : my_mutations ) {
        if (!mutation_branch::get( mut.first ).activated) {
            passive.push_back(mut.first);
        } else {
            active.push_back(mut.first);
        }
        // New mutations are initialized with no key at all, so we have to do this here.
        if( mut.second.key == ' ' ) {
            for( const auto &letter : mutation_chars ) {
                if( trait_by_invlet( letter ).empty() ) {
                    mut.second.key = letter;
                    break;
                }
            }
        }
    }

    // maximal number of rows in both columns
    const int mutations_count = std::max(passive.size(), active.size());

    int TITLE_HEIGHT = 2;
    int DESCRIPTION_HEIGHT = 5;

    // Main window
    /** Total required height is:
    * top frame line:                                         + 1
    * height of title window:                                 + TITLE_HEIGHT
    * line after the title:                                   + 1
    * line with active/passive mutation captions:               + 1
    * height of the biggest list of active/passive mutations:   + mutations_count
    * line before mutation description:                         + 1
    * height of description window:                           + DESCRIPTION_HEIGHT
    * bottom frame line:                                      + 1
    * TOTAL: TITLE_HEIGHT + mutations_count + DESCRIPTION_HEIGHT + 5
    */
    int HEIGHT = std::min(TERMY, std::max(FULL_SCREEN_HEIGHT,
                                          TITLE_HEIGHT + mutations_count + DESCRIPTION_HEIGHT + 5));
    int WIDTH = FULL_SCREEN_WIDTH + (TERMX - FULL_SCREEN_WIDTH) / 2;
    int START_X = (TERMX - WIDTH) / 2;
    int START_Y = (TERMY - HEIGHT) / 2;
    WINDOW *wBio = newwin(HEIGHT, WIDTH, START_Y, START_X);

    // Description window @ the bottom of the bio window
    int DESCRIPTION_START_Y = START_Y + HEIGHT - DESCRIPTION_HEIGHT - 1;
    int DESCRIPTION_LINE_Y = DESCRIPTION_START_Y - START_Y - 1;
    WINDOW *w_description = newwin(DESCRIPTION_HEIGHT, WIDTH - 2,
                                   DESCRIPTION_START_Y, START_X + 1);

    // Title window
    int TITLE_START_Y = START_Y + 1;
    int HEADER_LINE_Y = TITLE_HEIGHT + 1; // + lines with text in titlebar, local
    WINDOW *w_title = newwin(TITLE_HEIGHT, WIDTH - 2, TITLE_START_Y, START_X + 1);

    int scroll_position = 0;
    int second_column = 32 + (TERMX - FULL_SCREEN_WIDTH) /
                        4; // X-coordinate of the list of active mutations

    input_context ctxt("MUTATIONS");
    ctxt.register_updown();
    ctxt.register_action("ANY_INPUT");
    ctxt.register_action("TOGGLE_EXAMINE");
    ctxt.register_action("REASSIGN");
    ctxt.register_action("HELP_KEYBINDINGS");

    bool redraw = true;
    std::string menu_mode = "activating";

    while(true) {
        // offset for display: mutation with index i is drawn at y=list_start_y+i
        // drawing the mutation starts with mutation[scroll_position]
        const int list_start_y = HEADER_LINE_Y + 2 - scroll_position;
        int max_scroll_position = HEADER_LINE_Y + 2 + mutations_count -
                                  ((menu_mode == "examining") ? DESCRIPTION_LINE_Y : (HEIGHT - 1));
        if(redraw) {
            redraw = false;

            werase(wBio);
            draw_border(wBio);
            // Draw line under title
            mvwhline(wBio, HEADER_LINE_Y, 1, LINE_OXOX, WIDTH - 2);
            // Draw symbols to connect additional lines to border
            mvwputch(wBio, HEADER_LINE_Y, 0, BORDER_COLOR, LINE_XXXO); // |-
            mvwputch(wBio, HEADER_LINE_Y, WIDTH - 1, BORDER_COLOR, LINE_XOXX); // -|

            // Captions
            mvwprintz(wBio, HEADER_LINE_Y + 1, 2, c_ltblue, _("Passive:"));
            mvwprintz(wBio, HEADER_LINE_Y + 1, second_column, c_ltblue, _("Active:"));

            draw_exam_window(wBio, DESCRIPTION_LINE_Y, menu_mode == "examining");
            nc_color type;
            if (passive.empty()) {
                mvwprintz(wBio, list_start_y, 2, c_ltgray, _("None"));
            } else {
                for (size_t i = scroll_position; i < passive.size(); i++) {
                    const auto &md = mutation_branch::get( passive[i] );
                    const auto &td = my_mutations[passive[i]];
                    if (list_start_y + static_cast<int>(i) ==
                        (menu_mode == "examining" ? DESCRIPTION_LINE_Y : HEIGHT - 1)) {
                        break;
                    }
                    type = c_cyan;
                    mvwprintz(wBio, list_start_y + i, 2, type, "%c %s", td.key, md.name.c_str());
                }
            }

            if (active.empty()) {
                mvwprintz(wBio, list_start_y, second_column, c_ltgray, _("None"));
            } else {
                for (size_t i = scroll_position; i < active.size(); i++) {
                    const auto &md = mutation_branch::get( active[i] );
                    const auto &td = my_mutations[active[i]];
                    if (list_start_y + static_cast<int>(i) ==
                        (menu_mode == "examining" ? DESCRIPTION_LINE_Y : HEIGHT - 1)) {
                        break;
                    }
                    if (!td.powered) {
                        type = c_red;
                    }else if (td.powered) {
                        type = c_ltgreen;
                    } else {
                        type = c_ltred;
                    }
                    // TODO: track resource(s) used and specify
                    mvwputch( wBio, list_start_y + i, second_column, type, td.key );
                    std::stringstream mut_desc;
                    mut_desc << md.name;
                    if ( md.cost > 0 && md.cooldown > 0 ) {
                        mut_desc << string_format( _(" - %d RU / %d turns"),
                                      md.cost, md.cooldown );
                    } else if ( md.cost > 0 ) {
                        mut_desc << string_format( _(" - %d RU"), md.cost );
                    } else if ( md.cooldown > 0 ) {
                        mut_desc << string_format( _(" - %d turns"), md.cooldown );
                    }
                    if ( td.powered ) {
                        mut_desc << _(" - Active");
                    }
                    mvwprintz( wBio, list_start_y + i, second_column + 2, type,
                               mut_desc.str().c_str() );
                }
            }

            // Scrollbar
            if(scroll_position > 0) {
                mvwputch(wBio, HEADER_LINE_Y + 2, 0, c_ltgreen, '^');
            }
            if(scroll_position < max_scroll_position && max_scroll_position > 0) {
                mvwputch(wBio, (menu_mode == "examining" ? DESCRIPTION_LINE_Y : HEIGHT - 1) - 1,
                         0, c_ltgreen, 'v');
            }
        }
        wrefresh(wBio);
        show_mutations_titlebar(w_title, this, menu_mode);
        const std::string action = ctxt.handle_input();
        const long ch = ctxt.get_raw_input().get_first_input();
        if (menu_mode == "reassigning") {
            menu_mode = "activating";
            const auto mut_id = trait_by_invlet( ch );
            if( mut_id.empty() ) {
                // Selected an non-existing mutation (or escape, or ...)
                continue;
            }
            redraw = true;
            const long newch = popup_getkey(_("%s; enter new letter."),
                                            mutation_branch::get_name( mut_id ).c_str());
            wrefresh(wBio);
            if(newch == ch || newch == ' ' || newch == KEY_ESCAPE) {
                continue;
            }
            if( !mutation_chars.valid( newch ) ) {
                popup( _("Invalid mutation letter. Only those characters are valid:\n\n%s"),
                       mutation_chars.get_allowed_chars().c_str() );
                continue;
            }
            const auto other_mut_id = trait_by_invlet( newch );
            if( !other_mut_id.empty() ) {
                std::swap(my_mutations[mut_id].key, my_mutations[other_mut_id].key);
            } else {
                my_mutations[mut_id].key = newch;
            }
            // TODO: show a message like when reassigning a key to an item?
        } else if (action == "DOWN") {
            if(scroll_position < max_scroll_position) {
                scroll_position++;
                redraw = true;
            }
        } else if (action == "UP") {
            if(scroll_position > 0) {
                scroll_position--;
                redraw = true;
            }
        } else if (action == "REASSIGN") {
            menu_mode = "reassigning";
        } else if (action == "TOGGLE_EXAMINE") { // switches between activation and examination
            menu_mode = menu_mode == "activating" ? "examining" : "activating";
            werase(w_description);
            draw_exam_window(wBio, DESCRIPTION_LINE_Y, false);
            redraw = true;
        }else if (action == "HELP_KEYBINDINGS") {
            redraw = true;
        } else {
            const auto mut_id = trait_by_invlet( ch );
            if( mut_id.empty() ) {
                // entered a key that is not mapped to any mutation,
                // -> leave screen
                break;
            }
            const auto &mut_data = mutation_branch::get( mut_id );
            if (menu_mode == "activating") {
                if (mut_data.activated) {
                    if (my_mutations[mut_id].powered) {
                        add_msg_if_player(m_neutral, _("You stop using your %s."), mut_data.name.c_str());

                        deactivate_mutation( mut_id );
                        delwin(w_title);
                        delwin(w_description);
                        delwin(wBio);
                        // Action done, leave screen
                        break;
                    } else if( (!mut_data.hunger || get_hunger() <= 400) &&
                               (!mut_data.thirst || get_thirst() <= 400) &&
                               (!mut_data.fatigue || get_fatigue() <= 400) ) {

                        // this will clear the mutations menu for targeting purposes
                        werase(wBio);
                        wrefresh(wBio);
                        delwin(w_title);
                        delwin(w_description);
                        delwin(wBio);
                        g->draw();
                        add_msg_if_player( m_neutral, _("You activate your %s."), mut_data.name.c_str() );
                        activate_mutation( mut_id );
                        // Action done, leave screen
                        break;
                    } else {
                        popup( _( "You don't have enough in you to activate your %s!" ), mut_data.name.c_str() );
                        redraw = true;
                        continue;
                    }
                } else {
                    popup(_("\
You cannot activate %s!  To read a description of \
%s, press '!', then '%c'."), mut_data.name.c_str(), mut_data.name.c_str(),
                          my_mutations[mut_id].key );
                    redraw = true;
                }
            }
            if (menu_mode == "examining") { // Describing mutations, not activating them!
                draw_exam_window(wBio, DESCRIPTION_LINE_Y, true);
                // Clear the lines first
                werase(w_description);
                fold_and_print(w_description, 0, 0, WIDTH - 2, c_ltblue, mut_data.description);
                wrefresh(w_description);
            }
        }
    }
    //if we activated a mutation, already killed the windows
    if(!(menu_mode == "activating")) {
        werase(wBio);
        wrefresh(wBio);
        delwin(w_title);
        delwin(w_description);
        delwin(wBio);
    }
}