collection-menu-state.cpp

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/*
 * 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/collection-menu-state.hpp"
#include "game/states/main-menu-state.hpp"
#include "game/controls.hpp"
#include <engine/scene/text.hpp>
#include <engine/debug/log.hpp>
#include "game/menu.hpp"
#include "game/strings.hpp"
#include <engine/utility/hash/fnv1a.hpp>
#include <engine/resources/resource-manager.hpp>
#include <engine/animation/screen-transition.hpp>
#include <engine/animation/ease.hpp>
 
using namespace hash::literals;
 
collection_menu_state::collection_menu_state(::game& ctx):
    game_state(ctx)
{
    debug::log_trace("Entering collection menu state...");
    
    // Construct box material
    box_material = std::make_shared<render::material>();
    box_material->set_blend_mode(render::material_blend_mode::translucent);
    box_material->set_shader_template(ctx.resource_manager->load<gl::shader_template>("ui-element-untextured.glsl"));
    box_material->set_variable("tint", std::make_shared<render::matvar_fvec4>(1, math::fvec4{0.5f, 0.5f, 0.5f, 1}));
    
    // Construct box billboard
    box_billboard.set_material(box_material);
    
    // Construct selection material
    selection_material = std::make_shared<render::material>();
    selection_material->set_blend_mode(render::material_blend_mode::translucent);
    selection_material->set_shader_template(ctx.resource_manager->load<gl::shader_template>("ui-element-untextured.glsl"));
    box_material->set_variable("tint", std::make_shared<render::matvar_fvec4>(1, math::fvec4{1, 1, 1, 1}));
    
    // Construct selection billboard
    selection_billboard.set_material(selection_material);
    
    // Add box and selection billboard to UI scene
    ctx.ui_scene->add_object(box_billboard);
    ctx.ui_scene->add_object(selection_billboard);
    
    row_count = 64;
    column_count = 6;
    selected_row = 0;
    selected_column = 0;
    resize_box();
    
    mouse_moved_subscription = ctx.input_manager->get_event_dispatcher().subscribe<input::mouse_moved_event>
    (
        [&](const auto& event)
        {
 
        }
    );
    
    mouse_button_pressed_subscription = ctx.input_manager->get_event_dispatcher().subscribe<input::mouse_button_pressed_event>
    (
        [&](const auto& event)
        {
            const auto& viewport_size = ctx.window->get_viewport_size();
            const math::fvec2 mouse_position =
            {
                static_cast<float>(event.position.x()),
                static_cast<float>(viewport_size.y() - event.position.y() + 1)
            };
            
            if (box_bounds.contains(mouse_position))
            {
                int column = static_cast<int>((mouse_position.x() - box_bounds.min.x()) / selection_size);
                int row = static_cast<int>((box_bounds.max.y() - mouse_position.y()) / selection_size);
                
                if (column != selected_column || row != selected_row)
                {
                    selected_column = column;
                    selected_row = row;
                        
                    selection_billboard.set_translation
                    (
                        {
                            (box_bounds.min.x() + selection_size * 0.5f) + selection_size * selected_column,
                            (box_bounds.max.y() - selection_size * 0.5f) - selection_size * selected_row ,
                            0.0f
                        }
                    );
                    
                    debug::log_debug("selected colony: ({}, {})", selected_column, selected_row);
                }
            }
        }
    );
    
    window_resized_subscription = ctx.window->get_resized_channel().subscribe
    (
        [&](const auto& event)
        {
            this->resize_box();
        }
    );
    
    // Queue enable menu controls
    //ctx.function_queue.push(std::bind(::enable_menu_controls, std::ref(ctx)));
    
    // Fade in from black
    ctx.fade_transition->transition(config::title_fade_in_duration, true, ease<float>::out_cubic);
    
    debug::log_trace("Entered collection menu state");
}
 
collection_menu_state::~collection_menu_state()
{
    debug::log_trace("Exiting collection menu state...");
    
    // Destruct menu
    //::disable_menu_controls(ctx);
    
    debug::log_trace("Exited collection menu state");
}
 
void collection_menu_state::resize_box()
{
    const float padding = 64.0f;
    const auto viewport_size = math::fvec2(ctx.window->get_viewport_size());
    
    box_bounds.min.x() = viewport_size.x() * 0.5f + padding;
    box_bounds.max.x() = viewport_size.x() - padding;
    
    selection_size = (box_bounds.max.x() - box_bounds.min.x()) / static_cast<float>(column_count);
    
    box_bounds.max.y() = viewport_size.y() - padding;
    box_bounds.min.y() = std::max<float>(padding, box_bounds.max.y() - selection_size * row_count);
    
    const math::fvec2 box_size = box_bounds.size();
    const math::fvec2 box_center = box_bounds.center();
    
    // Resize box
    box_billboard.set_scale({box_size.x() * 0.5f, box_size.y() * 0.5f, 1.0f});
    box_billboard.set_translation({box_center.x(), box_center.y(), -1.0f});
    
    // Resize selection
    selection_billboard.set_scale({selection_size * 0.5f, selection_size * 0.5f, 1.0f});
    selection_billboard.set_translation
    (
        {
            (box_bounds.min.x() + selection_size * 0.5f) + selection_size * selected_column,
            (box_bounds.max.y() - selection_size * 0.5f) - selection_size * selected_row,
            0.0f
        }
    );
}