gui_unit_panel_subwindow.hpp

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#pragma once
 
#include "gui_element_types.hpp"
#include <vector>
 
namespace ui {
 
//======================================================================================================================================
//  REORGANISATION WINDOW
//======================================================================================================================================
 
template<class T>
class subunit_organisation_progress_bar : public vertical_progress_bar {
public:
    void on_update(sys::state& state) noexcept override {
        auto fat = dcon::fatten(state.world, retrieve<T>(state, parent));
        progress = fat.get_org();
    }
 
    tooltip_behavior has_tooltip(sys::state& state) noexcept override {
        return tooltip_behavior::variable_tooltip;
    }
 
    void update_tooltip(sys::state& state, int32_t x, int32_t y, text::columnar_layout& contents) noexcept override {
        {
            auto box = text::open_layout_box(contents, 0);
            text::localised_format_box(state, contents, box, std::string_view("curr_comb_org"));
            auto fat = dcon::fatten(state.world, retrieve<T>(state, parent));
            auto color = fat.get_org() >= 0.9f ? text::text_color::green
                : fat.get_org() < 0.5f ? text::text_color::red
                : text::text_color::yellow;
            text::add_to_layout_box(state, contents, box, text::fp_percentage{ fat.get_org() }, color);
            text::close_layout_box(contents, box);
        }
        if constexpr(std::is_same_v<T, dcon::regiment_id>) {
            ui::active_modifiers_description(state, contents, state.local_player_nation, 0, sys::national_mod_offsets::land_organisation, true);
        } else {
            ui::active_modifiers_description(state, contents, state.local_player_nation, 0, sys::national_mod_offsets::naval_organisation, true);
        }
    }
};
 
template<class T>
class subunit_strength_progress_bar : public vertical_progress_bar {
public:
    void on_update(sys::state& state) noexcept override {
        auto fat = dcon::fatten(state.world, retrieve<T>(state, parent));
        progress = fat.get_strength();
    }
 
    tooltip_behavior has_tooltip(sys::state& state) noexcept override {
        return tooltip_behavior::variable_tooltip;
    }
 
    void update_tooltip(sys::state& state, int32_t x, int32_t y, text::columnar_layout& contents) noexcept override {
        {
            auto box = text::open_layout_box(contents, 0);
            text::localised_format_box(state, contents, box, std::string_view("curr_comb_str"));
            auto fat = dcon::fatten(state.world, retrieve<T>(state, parent));
            auto color = fat.get_strength() >= 0.9f ? text::text_color::green
                : fat.get_strength() < 0.5f ? text::text_color::red
                : text::text_color::yellow;
            text::add_to_layout_box(state, contents, box, text::fp_percentage{ fat.get_strength() }, color);
            text::close_layout_box(contents, box);
        }
        auto fat_id = dcon::fatten(state.world, retrieve<T>(state, parent));
        auto o_sc_mod = std::max(0.01f, state.world.nation_get_modifier_values(state.local_player_nation, sys::national_mod_offsets::supply_consumption) + 1.0f);
        auto& supply_cost = state.military_definitions.unit_base_definitions[fat_id.get_type()].supply_cost;
        float total_cost = 0.f;
        for(uint32_t i = 0; i < economy::commodity_set::set_size; ++i) {
            if(supply_cost.commodity_type[i]) {
                float cost = state.world.commodity_get_cost(supply_cost.commodity_type[i]);
                float amount = supply_cost.commodity_amounts[i] * state.world.nation_get_unit_stats(state.local_player_nation, fat_id.get_type()).supply_consumption * o_sc_mod;
                text::substitution_map m;
                text::add_to_substitution_map(m, text::variable_type::name, state.world.commodity_get_name(supply_cost.commodity_type[i]));
                text::add_to_substitution_map(m, text::variable_type::val, text::fp_currency{ cost });
                text::add_to_substitution_map(m, text::variable_type::need, text::fp_four_places{ amount });
                text::add_to_substitution_map(m, text::variable_type::cost, text::fp_currency{ cost * amount });
                auto box = text::open_layout_box(contents, 0);
                text::localised_format_box(state, contents, box, "alice_spending_commodity", m);
                text::close_layout_box(contents, box);
                total_cost += cost * amount;
            } else {
                break;
            }
        }
        text::substitution_map m;
        text::add_to_substitution_map(m, text::variable_type::cost, text::fp_currency{ total_cost });
        auto box = text::open_layout_box(contents, 0);
        text::localised_format_box(state, contents, box, "alice_spending_unit_1", m);
        text::close_layout_box(contents, box);
    }
};
 
class regiment_pop_icon : public tinted_image_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        auto reg_id = retrieve<dcon::regiment_id>(state, parent);
        auto base_pop = state.world.regiment_get_pop_from_regiment_source(reg_id);
        if(!base_pop) {
            frame = state.world.pop_type_get_sprite(state.culture_definitions.soldiers) - 1;
            color = sys::pack_color(255, 75, 75);
        } else {
            frame = state.world.pop_type_get_sprite(state.world.pop_get_poptype(base_pop)) - 1;
            if(state.world.pop_get_size(base_pop) < state.defines.pop_min_size_for_regiment) {
                color = sys::pack_color(220, 75, 75);
            } else if(state.world.pop_get_size(base_pop) < state.defines.pop_size_per_regiment) {
                color = sys::pack_color(200, 200, 0);
            } else {
                color = sys::pack_color(255, 255, 255);
            }
        }
    }
 
    tooltip_behavior has_tooltip(sys::state& state) noexcept override {
        return tooltip_behavior::variable_tooltip;
    }
 
    void update_tooltip(sys::state& state, int32_t x, int32_t y, text::columnar_layout& contents) noexcept override {
        auto reg_id = retrieve<dcon::regiment_id>(state, parent);
        auto base_pop = state.world.regiment_get_pop_from_regiment_source(reg_id);
 
        if(!base_pop) {
            text::add_line(state, contents, "reinforce_rate_none");
        } else {
            // Added culture name to the tooltip
            text::add_line(state, contents, "x_from_y", text::variable_type::x, state.world.pop_get_poptype(base_pop).get_name(), text::variable_type::y, state.world.pop_get_province_from_pop_location(base_pop), text::variable_type::culture, state.world.pop_get_culture(base_pop).get_name());
            text::add_line_break_to_layout(state, contents);
 
            auto reg_range = state.world.pop_get_regiment_source(base_pop);
            text::add_line(state, contents, "pop_size_unitview",
                text::variable_type::val, text::pretty_integer{ int64_t(state.world.pop_get_size(base_pop)) },
                text::variable_type::allowed, military::regiments_possible_from_pop(state, base_pop),
                text::variable_type::current, int64_t(reg_range.end() - reg_range.begin())
            );
 
            auto a = state.world.regiment_get_army_from_army_membership(reg_id);
            auto reinf = state.defines.pop_size_per_regiment * military::reinforce_amount(state, a);
            if(reinf >= 2.0f) {
                text::add_line(state, contents, "reinforce_rate", text::variable_type::x, int64_t(reinf));
            } else {
                text::add_line(state, contents, "reinforce_rate_none");
            }
        }
    }
};
 
template<class T>
class subunit_details_type_icon : public image_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = T{};
            parent->impl_get(state, payload);
            T content = any_cast<T>(payload);
            dcon::unit_type_id utid = dcon::fatten(state.world, content).get_type();
            if(utid)
                frame = state.military_definitions.unit_base_definitions[utid].icon - 1;
        }
    }
};
 
enum class reorg_win_action : uint8_t {
    close = 0,
    balance = 1,
};
 
template<class T>
class reorg_unit_transfer_button : public button_element_base {
public:
    void button_action(sys::state& state) noexcept override {
        auto content = retrieve<T>(state, parent);
        if(content)
            send(state, parent, element_selection_wrapper<T>{content});
        
    }
    void button_shift_action(sys::state& state) noexcept override {
        auto content = retrieve<T>(state, parent);
        if constexpr(std::is_same_v<T, dcon::regiment_id>) {
            auto army = state.world.regiment_get_army_from_army_membership(content);
            auto type = state.world.regiment_get_type(content);
            for(auto r : state.world.army_get_army_membership(army)) {
                if(r.get_regiment().get_type() == type) {
                    send(state, parent, element_selection_wrapper<T>{r.get_regiment().id});
                }
            }
        } else {
            auto n = state.world.ship_get_navy_from_navy_membership(content);
            auto type = state.world.ship_get_type(content);
            for(auto r : state.world.navy_get_navy_membership(n)) {
                if(r.get_ship().get_type() == type) {
                    send(state, parent, element_selection_wrapper<T>{r.get_ship().id});
                }
            }
        }
    }
};
 
template<class T>
class subunit_details_type_text : public simple_text_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = T{};
            parent->impl_get(state, payload);
            T content = any_cast<T>(payload);
            dcon::unit_type_id utid = dcon::fatten(state.world, content).get_type();
            if(utid)
                set_text(state, text::produce_simple_string(state, state.military_definitions.unit_base_definitions[utid].name));
            else
                set_text(state, "");
        }
    }
};
 
class subunit_details_regiment_amount : public simple_text_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = dcon::regiment_id{};
            parent->impl_get(state, payload);
            dcon::regiment_id content = any_cast<dcon::regiment_id>(payload);
            if(content)
                set_text(state, text::format_wholenum(int32_t(state.world.regiment_get_strength(content) * state.defines.pop_size_per_regiment)));
            else
                set_text(state, "");
        }
    }
};
class subunit_details_ship_amount : public simple_text_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = dcon::ship_id{};
            parent->impl_get(state, payload);
            dcon::ship_id content = any_cast<dcon::ship_id>(payload);
            if(content)
                set_text(state, text::format_percentage(state.world.ship_get_strength(content), 0));
            else
                set_text(state, "");
        }
    }
};
 
template<class T>
class subunit_details_name : public simple_text_element_base {
public:
    void on_update(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = T{};
            parent->impl_get(state, payload);
            T content = any_cast<T>(payload);
            std::string str{ state.to_string_view(dcon::fatten(state.world, content).get_name()) };
            set_text(state, str);
        }
    }
};
 
template<class T>
class reorg_unit_listbox_row : public listbox_row_element_base<T> {
using listrow = listbox_row_element_base<T>;
 
public:
    void on_create(sys::state& state) noexcept override {
        listrow::base_data.position.y += 128;   // Nudge
        listrow::base_data.position.x += 256;
        listrow::on_create(state);
    }
 
    std::unique_ptr<element_base> make_child(sys::state& state, std::string_view name, dcon::gui_def_id id) noexcept override {
        if(name == "band_reorg_regiment") {
            return make_element_by_type<reorg_unit_transfer_button<T>>(state, id);
 
        } else if(name == "band_reorg_naval") {
            return make_element_by_type<reorg_unit_transfer_button<T>>(state, id);
 
        } else if(name == "unit_icon") {
            return make_element_by_type<subunit_details_type_icon<T>>(state, id);
        } else if(name == "subunit_name") {
            return make_element_by_type<subunit_details_name<T>>(state, id);
        } else if(name == "subunit_type") {
            return make_element_by_type<subunit_details_type_text<T>>(state, id);
        } else if(name == "subunit_strength") {
            return make_element_by_type<subunit_details_regiment_amount>(state, id);
        } else if(name == "subunit_strength_naval") {
            return make_element_by_type<subunit_details_ship_amount>(state, id);
        } else if(name == "connected_pop") {
            if constexpr(std::is_same_v<T, dcon::regiment_id>) {
                return make_element_by_type<regiment_pop_icon>(state, id);
            } else {
                return make_element_by_type<invisible_element>(state, id);
            }
        } else if(name == "rebel_faction") {
            return make_element_by_type<invisible_element>(state, id);
        } else if(name == "org_bar") {
            return make_element_by_type<subunit_organisation_progress_bar<T>>(state, id);
        } else if(name == "str_bar") {
            return make_element_by_type<subunit_strength_progress_bar<T>>(state, id);
        } else if(name == "transferbutton") {
            return make_element_by_type<reorg_unit_transfer_button<T>>(state, id);
        } else {
            return nullptr;
        }
    }
};
 
template<class T, class T2>
class reorg_unit_listbox_left : public listbox_element_base<reorg_unit_listbox_row<T2>, T2> {
using listbox_left = listbox_element_base<reorg_unit_listbox_row<T2>, T2>;
protected:
    std::string_view get_row_element_name() override {
        return "reorg_entry";
    }
 
public:
    void on_update(sys::state& state) noexcept override {
        if(listbox_left::parent) {
            auto content = retrieve<T>(state, listbox_left::parent);
 
            Cyto::Any vpayload = std::vector<T2>{};
            listbox_left::parent->impl_get(state, vpayload);
            std::vector<T2> selectedunits = any_cast<std::vector<T2>>(vpayload);
 
            auto fat = dcon::fatten(state.world, content);
 
            listbox_left::row_contents.clear();
 
            if constexpr(std::is_same_v<T, dcon::army_id>) {
                for(auto regi : fat.get_army_membership()) {
                    if(auto result = std::find(begin(selectedunits), end(selectedunits), regi.get_regiment().id); result == std::end(selectedunits)) {
                        listbox_left::row_contents.push_back(regi.get_regiment().id);
                    }
                }
                std::sort(listbox_left::row_contents.begin(), listbox_left::row_contents.end(), [&](dcon::regiment_id a, dcon::regiment_id b) {
                    auto av = state.world.regiment_get_type(a).index();
                    auto bv = state.world.regiment_get_type(b).index();
                    if(av != bv)
                        return av > bv;
                    else
                        return a.index() < b.index();
                });
            } else {
                for(auto regi : fat.get_navy_membership()) {
                    if(auto result = std::find(begin(selectedunits), end(selectedunits), regi.get_ship().id); result == std::end(selectedunits)) {
                        listbox_left::row_contents.push_back(regi.get_ship().id);
                    }
                }
                std::sort(listbox_left::row_contents.begin(), listbox_left::row_contents.end(), [&](dcon::ship_id a, dcon::ship_id b) {
                    auto av = state.world.ship_get_type(a).index();
                    auto bv = state.world.ship_get_type(b).index();
                    if(av != bv)
                        return av > bv;
                    else
                        return a.index() < b.index();
                });
            }
 
            listbox_left::update(state);
        }
    }
};
 
template<class T, class T2>
class reorg_unit_listbox_right : public listbox_element_base<reorg_unit_listbox_row<T2>, T2> {
using listbox_right = listbox_element_base<reorg_unit_listbox_row<T2>, T2>;
protected:
    std::string_view get_row_element_name() override {
        return "reorg_entry_right";
    }
 
public:
    void on_update(sys::state& state) noexcept override {
        if(listbox_right::parent) {
            auto content = retrieve<T>(state, listbox_right::parent);
 
            Cyto::Any vpayload = std::vector<T2>{};
            listbox_right::parent->impl_get(state, vpayload);
            std::vector<T2> selectedunits = any_cast<std::vector<T2>>(vpayload);
 
            auto fat = dcon::fatten(state.world, content);
 
            listbox_right::row_contents.clear();
 
            if constexpr(std::is_same_v<T, dcon::army_id>) {
                for(auto regi : fat.get_army_membership()) {
                    if(auto result = std::find(begin(selectedunits), end(selectedunits), regi.get_regiment().id); result != std::end(selectedunits)) {
                        listbox_right::row_contents.push_back(regi.get_regiment().id);
                    }
                }
                std::sort(listbox_right::row_contents.begin(), listbox_right::row_contents.end(), [&](dcon::regiment_id a, dcon::regiment_id b) {
                    auto av = state.world.regiment_get_type(a).index();
                    auto bv = state.world.regiment_get_type(b).index();
                    if(av != bv)
                        return av > bv;
                    else
                        return a.index() < b.index();
                });
            } else {
                for(auto regi : fat.get_navy_membership()) {
                    if(auto result = std::find(begin(selectedunits), end(selectedunits), regi.get_ship().id); result != std::end(selectedunits)) {
                        listbox_right::row_contents.push_back(regi.get_ship().id);
                    }
                }
                std::sort(listbox_right::row_contents.begin(), listbox_right::row_contents.end(), [&](dcon::ship_id a, dcon::ship_id b) {
                    auto av = state.world.ship_get_type(a).index();
                    auto bv = state.world.ship_get_type(b).index();
                    if(av != bv)
                        return av > bv;
                    else
                        return a.index() < b.index();
                });
            }
 
            listbox_right::update(state);
        }
    }
};
 
 
class unit_reorg_balance_button : public button_element_base {
public:
    void button_action(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = element_selection_wrapper<reorg_win_action>{reorg_win_action{reorg_win_action::balance}};
            parent->impl_get(state, payload);
        }
    }
};
 
class reorg_win_close_button : public button_element_base {
public:
    void button_action(sys::state& state) noexcept override {
        if(parent) {
            Cyto::Any payload = element_selection_wrapper<reorg_win_action>{reorg_win_action{reorg_win_action::close}};
            parent->impl_get(state, payload);
        }
    }
};
 
template<class T, class T2>
class unit_reorg_window : public window_element_base {
private:
    std::vector<T2> selectedsubunits;
    T unitToReorg{};
    simple_text_element_base* orginialunit_text = nullptr;
 
public:
    std::unique_ptr<element_base> make_child(sys::state& state, std::string_view name, dcon::gui_def_id id) noexcept override {
        if(name == "reorg_bg") {
            return make_element_by_type<opaque_element_base>(state, id);
 
        } else if(name == "reorg_label") {
            return make_element_by_type<simple_text_element_base>(state, id);
 
        } else if(name == "unitname_1") {
            auto ptr = make_element_by_type<simple_text_element_base>(state, id);
            orginialunit_text = ptr.get();
            return ptr;
 
        } else if(name == "unitname_2") {
            return make_element_by_type<simple_text_element_base>(state, id);
 
        } else if(name == "cell_window_left" || name == "cell_window_right") {
            return make_element_by_type<invisible_element>(state, id);
 
        } else if(name == "balancebutton") {
            return make_element_by_type<unit_reorg_balance_button>(state, id);
 
        } else if(name == "closebutton") {
            return make_element_by_type<reorg_win_close_button>(state, id);
 
        } else if(name == "left_list") {
            if constexpr(std::is_same_v<T, dcon::army_id>) {
                auto ptr = make_element_by_type<reorg_unit_listbox_left<T, T2>>(state, id);
                //ptr->base_data.position.x += 255; // Nudge
                //ptr->list_scrollbar->base_data.position.x += 256;
                ptr->base_data.size.x += 256;
                return ptr;
            } else {
                auto ptr = make_element_by_type<reorg_unit_listbox_left<T, T2>>(state, id);
                //ptr->base_data.position.x += 255; // Nudge
                //ptr->list_scrollbar->base_data.position.x += 256;
                ptr->base_data.size.x += 256;
                return ptr;
            }
 
        } else if(name == "right_list") {
            if constexpr(std::is_same_v<T, dcon::army_id>) {
                auto ptr = make_element_by_type<reorg_unit_listbox_right<T, T2>>(state, id);
                //ptr->base_data.position.x += 255; // Nudge
                //ptr->list_scrollbar->base_data.position.x += 256;
                ptr->base_data.size.x += 256;
                return ptr;
            } else {
                auto ptr = make_element_by_type<reorg_unit_listbox_right<T, T2>>(state, id);
                //ptr->base_data.position.x += 255; // Nudge
                //ptr->list_scrollbar->base_data.position.x += 256;
                ptr->base_data.size.x += 256;
                return ptr;
            }
 
        } else if(name == "external_scroll_slider_left" || name == "external_scroll_slider_right") {
            return make_element_by_type<invisible_element>(state, id);
 
        } else {
            return nullptr;
        }
    }
 
    void on_update(sys::state& state) noexcept override {
        unitToReorg = retrieve<T>(state, parent);
        auto fat = dcon::fatten(state.world, unitToReorg);
        orginialunit_text->set_text(state, std::string(state.to_string_view(fat.get_name())));
    }
 
    void on_visible(sys::state& state) noexcept override {
        selectedsubunits.clear();
    }
    void on_hide(sys::state& state) noexcept override {
        selectedsubunits.clear();
    }
 
    message_result get(sys::state& state, Cyto::Any& payload) noexcept override {
        if(payload.holds_type<element_selection_wrapper<T>>()) {
            unitToReorg = any_cast<element_selection_wrapper<T>>(payload).data;
            return message_result::consumed;
        } else if(payload.holds_type<T>()) {
            payload.emplace<T>(unitToReorg);
            return message_result::consumed;
        } else if(payload.holds_type<element_selection_wrapper<T2>>()) {
            auto content = any_cast<element_selection_wrapper<T2>>(payload).data;
            if(!selectedsubunits.empty()) {
                if(auto result = std::find(selectedsubunits.begin(), selectedsubunits.end(), content); result != selectedsubunits.end()) {
                    selectedsubunits.erase(result);
                } else {
                    selectedsubunits.push_back(content);
                }
            } else {
                selectedsubunits.push_back(content);
            }
            impl_on_update(state);
            return message_result::consumed;
        } else if(payload.holds_type<std::vector<T2>>()) {
            payload.emplace<std::vector<T2>>(selectedsubunits);
            return message_result::consumed;
        } else if(payload.holds_type<element_selection_wrapper<reorg_win_action>>()) {
            auto content = any_cast<element_selection_wrapper<reorg_win_action>>(payload).data;
            switch(content) {
                case reorg_win_action::close:
                    if(selectedsubunits.size() <= command::num_packed_units && !selectedsubunits.empty()) {
                        if constexpr(std::is_same_v<T2, dcon::regiment_id>) {
                            std::array<dcon::regiment_id, command::num_packed_units> tosplit{};
                            for(size_t i = 0; i < selectedsubunits.size(); i++) {
                                tosplit[i] = selectedsubunits[i];
                            }
                            command::mark_regiments_to_split(state, state.local_player_nation, tosplit);
                            command::split_army(state, state.local_player_nation, unitToReorg);
                        } else {
                            std::array<dcon::ship_id, command::num_packed_units> tosplit{};
                            for(size_t i = 0; i < selectedsubunits.size(); i++) {
                                tosplit[i] = selectedsubunits[i];
                            }
                            command::mark_ships_to_split( state, state.local_player_nation, tosplit);
                            command::split_navy(state, state.local_player_nation, unitToReorg);
                        }
                    } else if(selectedsubunits.size() > command::num_packed_units){
                        if constexpr(std::is_same_v<T2, dcon::regiment_id>) {
                            std::array<dcon::regiment_id, command::num_packed_units> tosplit{};
                            //while(selectedsubunits.size() > command::num_packed_units) {
                            while(selectedsubunits.size() > 0) {
                                tosplit.fill(dcon::regiment_id{});
                                for(size_t i = 0; i < command::num_packed_units && i < selectedsubunits.size(); i++) {
                                    tosplit[i] = selectedsubunits[i];
                                }
                                command::mark_regiments_to_split(state, state.local_player_nation, tosplit);
                                (selectedsubunits.size() > command::num_packed_units) ? selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.begin() + command::num_packed_units)
                                                                                        : selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.end());
                            }
                            command::split_army(state, state.local_player_nation, unitToReorg);
                        } else {
                            std::array<dcon::ship_id, command::num_packed_units> tosplit{};
                            //while(selectedsubunits.size() > command::num_packed_units) {
                            while(selectedsubunits.size() > 0) {
                                tosplit.fill(dcon::ship_id{});
                                for(size_t i = 0; i < command::num_packed_units && i < selectedsubunits.size(); i++) {
                                    tosplit[i] = selectedsubunits[i];
                                }
                                command::mark_ships_to_split(state, state.local_player_nation, tosplit);
                                (selectedsubunits.size() > command::num_packed_units) ? selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.begin() + command::num_packed_units)
                                                                                        : selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.end());
                            }
                            command::split_navy(state, state.local_player_nation, unitToReorg);
                        }
                    }
                    if(selectedsubunits.empty()) { selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.end()); }
                    set_visible(state, false);
                    break;
                case reorg_win_action::balance:
                    // Disregard any of the units the player already selected, because its our way or the hi(fi)-way
                    selectedsubunits.erase(selectedsubunits.begin(), selectedsubunits.end());
                    if constexpr(std::is_same_v<T, dcon::army_id>) {
                        for(auto reg : dcon::fatten(state.world, unitToReorg).get_army_membership()) {
                            selectedsubunits.push_back(reg.get_regiment().id);
                        }
                    } else {
                        for(auto reg : dcon::fatten(state.world, unitToReorg).get_navy_membership()) {
                            selectedsubunits.push_back(reg.get_ship().id);
                        }
                    }
                    std::sort(selectedsubunits.begin(), selectedsubunits.end(), [&](auto a, auto b){return dcon::fatten(state.world,a).get_type().value > dcon::fatten(state.world,b).get_type().value;});
                    //for(size_t i = selectedsubunits.size(); i > 0; i--) {
                    for(size_t i = selectedsubunits.size(); i-->0;) {
                        if((i % 2) == 0) {
                            selectedsubunits.erase(selectedsubunits.begin() + i);
                        }
                    }
                    impl_on_update(state);
                    break;
                default:
                    break;
            }
            return message_result::consumed;
        }   
        return message_result::unseen;
    }
};
 
} // namespace ui