pause-menu-state.cpp

Go to the documentation of this file.

/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code 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 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code 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 Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "game/states/pause-menu-state.hpp"
#include "game/states/main-menu-state.hpp"
#include "game/states/options-menu-state.hpp"
#include "game/states/nuptial-flight-state.hpp"
#include "game/menu.hpp"
#include "game/controls.hpp"
#include <engine/animation/ease.hpp>
#include <engine/animation/animation.hpp>
#include <engine/animation/animator.hpp>
#include <engine/scene/text.hpp>
#include <engine/debug/log.hpp>
#include <engine/animation/screen-transition.hpp>
#include <engine/config.hpp>
#include "game/strings.hpp"
#include <engine/utility/hash/fnv1a.hpp>
 
using namespace hash::literals;
 
pause_menu_state::pause_menu_state(::game& ctx):
    game_state(ctx)
{
    debug::log_trace("Entering pause menu state...");
    
    // Construct menu item texts
    resume_text = std::make_unique<scene::text>();;
    options_text = std::make_unique<scene::text>();;
    main_menu_text = std::make_unique<scene::text>();;
    quit_text = std::make_unique<scene::text>();;
    
    // Set content of menu item texts
    resume_text->set_content(get_string(ctx, "pause_menu_resume"));
    options_text->set_content(get_string(ctx, "pause_menu_options"));
    main_menu_text->set_content(get_string(ctx, "pause_menu_main_menu"));
    quit_text->set_content(get_string(ctx, "pause_menu_quit"));
    
    // Build list of menu item texts
    ctx.menu_item_texts.push_back({resume_text.get(), nullptr});
    ctx.menu_item_texts.push_back({options_text.get(), nullptr});
    ctx.menu_item_texts.push_back({main_menu_text.get(), nullptr});
    ctx.menu_item_texts.push_back({quit_text.get(), nullptr});
    
    // Init menu item index
    ::menu::init_menu_item_index(ctx, "pause");
    
    ::menu::update_text_color(ctx);
    ::menu::update_text_font(ctx);
    ::menu::align_text(ctx, true, false);
    ::menu::add_text_to_ui(ctx);
    ::menu::setup_animations(ctx);
    
    // Construct menu item callbacks
    auto select_resume_callback = [&ctx]()
    {
        // Disable unpause control
        //ctx.controls["pause"]->set_activated_callback(nullptr);
        
        // Disable menu controls
        ctx.function_queue.push(std::bind(::disable_menu_controls, std::ref(ctx)));
        
        auto resume_paused_state = [&ctx]()
        {
            ctx.function_queue.push
            (
                [&ctx]()
                {
                    ctx.state_machine.pop();
                    ctx.resume_callback();
                }
            );
        };
        
        // Fade out pause menu then resume paused state
        ::menu::fade_out(ctx, resume_paused_state);
        ::menu::fade_out_bg(ctx);
    };
    auto select_options_callback = [&ctx]()
    {
        // Disable unpause control
        //ctx.controls["pause"]->set_activated_callback(nullptr);
        
        // Disable menu controls
        ctx.function_queue.push(std::bind(::disable_menu_controls, std::ref(ctx)));
        
        // Fade out pause menu then open options menu
        ::menu::fade_out
        (
            ctx,
            [&ctx]()
            {
                // Queue change to options menu state
                ctx.function_queue.push
                (
                    [&ctx]()
                    {
                        ctx.state_machine.pop();
                        ctx.state_machine.emplace(std::make_unique<options_menu_state>(ctx));
                    }
                );
            }
        );
    };
    auto select_main_menu_callback = [&ctx]()
    {
        // Disable unpause control
        //ctx.controls["pause"]->set_activated_callback(nullptr);
        
        // Disable menu controls
        ctx.function_queue.push(std::bind(::disable_menu_controls, std::ref(ctx)));
        
        // Clear resume callback
        ctx.resume_callback = nullptr;
        
        auto fade_out_callback = [&ctx]()
        {
            // Queue change to main menu state
            ctx.function_queue.push
            (
                [&ctx]()
                {
                    //ctx.menu_bg_billboard->set_active(false);
                    ctx.state_machine.pop();
                    ctx.state_machine.pop();
                    ctx.state_machine.emplace(std::make_unique<main_menu_state>(ctx, true));
                }
            );
        };
        
        // Fade out pause menu
        ::menu::fade_out(ctx, nullptr);
        
        // Fade out to black then return to main menu
        ctx.fade_transition_color->set({0, 0, 0});
        ctx.fade_transition->transition(config::quit_fade_out_duration, false, ease<float>::out_cubic, false, fade_out_callback);
    };
    auto select_quit_callback = [&ctx]()
    {
        // Disable unpause control
        //ctx.controls["pause"]->set_activated_callback(nullptr);
        
        // Disable menu controls
        ctx.function_queue.push(std::bind(::disable_menu_controls, std::ref(ctx)));
        
        // Clear paused state
        //ctx.paused_state.reset();
        
        // Fade out pause menu
        ::menu::fade_out(ctx, nullptr);
        
        // Fade out to black then quit
        ctx.fade_transition_color->set({0, 0, 0});
        ctx.fade_transition->transition(config::quit_fade_out_duration, false, ease<float>::out_cubic, false, [&ctx](){ctx.closed=true;});
    };
    
    // Build list of menu select callbacks
    ctx.menu_select_callbacks.push_back(select_resume_callback);
    ctx.menu_select_callbacks.push_back(select_options_callback);
    ctx.menu_select_callbacks.push_back(select_main_menu_callback);
    ctx.menu_select_callbacks.push_back(select_quit_callback);
    
    // Build list of menu right callbacks
    ctx.menu_right_callbacks.resize(4, nullptr);
    
    // Build list of menu left callbacks
    ctx.menu_left_callbacks.resize(4, nullptr);
    
    // Set menu back callback
    ctx.menu_back_callback = select_resume_callback;
    
    // Queue control setup
    ctx.function_queue.push
    (
        [&ctx, select_resume_callback]()
        {
            // Enable unpause control
            //ctx.controls["pause"]->set_activated_callback(select_resume_callback);
            
            // Enable menu controls
            ::enable_menu_controls(ctx);
        }
    );
    
    // Fade in menu and menu BG
    ::menu::fade_in(ctx, nullptr);
    //if (!ctx.menu_bg_billboard->is_active())
        ::menu::fade_in_bg(ctx);
    
    // Save colony
    //::save::colony(ctx);
    
    debug::log_trace("Entered pause menu state");
}
 
pause_menu_state::~pause_menu_state()
{
    debug::log_trace("Exiting pause menu state...");
    
    // Destruct menu
    ::disable_menu_controls(ctx);
    ::menu::clear_callbacks(ctx);
    ::menu::delete_animations(ctx);
    ::menu::remove_text_from_ui(ctx);
    ::menu::delete_text(ctx);
    
    debug::log_trace("Exited pause menu state");
}