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- /*
- * Copyright (C) 2021 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/menu.hpp"
- #include "scene/text.hpp"
- #include "application.hpp"
- #include <algorithm>
-
- namespace game {
- namespace menu {
-
- void init_menu_item_index(game::context* ctx, const std::string& menu_name)
- {
- if (auto it = ctx->menu_item_indices.find(menu_name); it != ctx->menu_item_indices.end())
- {
- ctx->menu_item_index = &it->second;
- }
- else
- {
- ctx->menu_item_index = &ctx->menu_item_indices[menu_name];
- *ctx->menu_item_index = 0;
- }
- }
-
- void update_text_font(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- name->set_material(&ctx->menu_font_material);
- name->set_font(&ctx->menu_font);
-
- if (value)
- {
- value->set_material(&ctx->menu_font_material);
- value->set_font(&ctx->menu_font);
- }
- }
- }
-
- void update_text_color(game::context* ctx)
- {
- for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
- {
- auto [name, value] = ctx->menu_item_texts[i];
-
- const float4& color = (i == *ctx->menu_item_index) ? active_color : inactive_color;
-
- name->set_color(color);
- if (value)
- value->set_color(color);
- }
- }
-
- void update_text_tweens(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- name->update_tweens();
- if (value)
- value->update_tweens();
- }
- }
-
- void align_text(game::context* ctx)
- {
- // Calculate menu width
- float menu_width = 0.0f;
- float menu_spacing = ctx->menu_font.get_glyph_metrics(U'M').width;
-
- for (auto [name, value]: ctx->menu_item_texts)
- {
- float row_width = 0.0f;
-
- // Add name width to width
- const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_local_bounds());
- row_width += name_bounds.max_point.x - name_bounds.min_point.x;
-
- if (value)
- {
- // Add value width to width
- //const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_local_bounds());
- //row_width += value_bounds.max_point.x - value_bounds.min_point.x;
-
- // Add spacing to row width
- row_width += menu_spacing * 8.0f;
- }
-
- menu_width = std::max<float>(menu_width, row_width);
- }
-
- // Align texts
- float menu_height = ctx->menu_item_texts.size() * ctx->menu_font.get_font_metrics().linespace;
- float menu_x = -menu_width * 0.5f;
- float menu_y = menu_height * 0.5f - ctx->menu_font.get_font_metrics().linespace;
-
- for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
- {
- auto [name, value] = ctx->menu_item_texts[i];
-
- float x = menu_x;
- float y = menu_y - ctx->menu_font.get_font_metrics().linespace * i;
- name->set_translation({std::round(x), std::round(y), 0.0f});
-
- if (value)
- {
- const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_local_bounds());
- const float value_width = value_bounds.max_point.x - value_bounds.min_point.x;
- x = menu_x + menu_width - value_width;
-
- value->set_translation({std::round(x), std::round(y), 0.0f});
- }
- }
- }
-
- void refresh_text(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- name->refresh();
- if (value)
- value->refresh();
- }
- }
-
- void add_text_to_ui(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- ctx->ui_scene->add_object(name);
- if (value)
- ctx->ui_scene->add_object(value);
- }
- }
-
- void remove_text_from_ui(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- ctx->ui_scene->remove_object(name);
- if (value)
- ctx->ui_scene->remove_object(value);
- }
- }
-
- void delete_text(game::context* ctx)
- {
- for (auto [name, value]: ctx->menu_item_texts)
- {
- delete name;
- if (value)
- delete value;
- }
- ctx->menu_item_texts.clear();
- }
-
- void clear_callbacks(game::context* ctx)
- {
- // Clear menu item callbacks
- ctx->menu_left_callbacks.clear();
- ctx->menu_right_callbacks.clear();
- ctx->menu_select_callbacks.clear();
- ctx->menu_back_callback = nullptr;
- }
-
- void setup_controls(game::context* ctx)
- {
- ctx->controls["menu_up"]->set_activated_callback
- (
- [ctx]()
- {
- --(*ctx->menu_item_index);
- if (*ctx->menu_item_index < 0)
- *ctx->menu_item_index = ctx->menu_item_texts.size() - 1;
-
- update_text_color(ctx);
- }
- );
- ctx->controls["menu_down"]->set_activated_callback
- (
- [ctx]()
- {
- ++(*ctx->menu_item_index);
- if (*ctx->menu_item_index >= ctx->menu_item_texts.size())
- *ctx->menu_item_index = 0;
-
- update_text_color(ctx);
- }
- );
- ctx->controls["menu_left"]->set_activated_callback
- (
- [ctx]()
- {
- auto callback = ctx->menu_left_callbacks[*ctx->menu_item_index];
- if (callback != nullptr)
- callback();
- }
- );
- ctx->controls["menu_right"]->set_activated_callback
- (
- [ctx]()
- {
- auto callback = ctx->menu_right_callbacks[*ctx->menu_item_index];
- if (callback != nullptr)
- callback();
- }
- );
- ctx->controls["menu_select"]->set_activated_callback
- (
- [ctx]()
- {
- auto callback = ctx->menu_select_callbacks[*ctx->menu_item_index];
- if (callback != nullptr)
- callback();
- }
- );
- ctx->controls["menu_back"]->set_activated_callback
- (
- [ctx]()
- {
- if (ctx->menu_back_callback != nullptr)
- ctx->menu_back_callback();
- }
- );
-
- ctx->menu_mouse_tracker->set_mouse_moved_callback
- (
- [ctx](const mouse_moved_event& event)
- {
- for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
- {
- auto [name, value] = ctx->menu_item_texts[i];
-
- const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_world_bounds());
- float min_x = name_bounds.min_point.x;
- float min_y = name_bounds.min_point.y;
- float max_x = name_bounds.max_point.x;
- float max_y = name_bounds.max_point.y;
- if (value)
- {
- const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_world_bounds());
- min_x = std::min<float>(min_x, value_bounds.min_point.x);
- min_y = std::min<float>(min_y, value_bounds.min_point.y);
- max_x = std::max<float>(max_x, value_bounds.max_point.x);
- max_y = std::max<float>(max_y, value_bounds.max_point.y);
- }
-
- const auto& viewport = ctx->app->get_viewport_dimensions();
- const float x = static_cast<float>(event.x - viewport[0] / 2);
- const float y = static_cast<float>((viewport[1] - event.y + 1) - viewport[1] / 2);
-
- if (x >= min_x && x <= max_x)
- {
- if (y >= min_y && y <= max_y)
- {
- *ctx->menu_item_index = i;
- update_text_color(ctx);
- break;
- }
- }
- }
- }
- );
-
- ctx->menu_mouse_tracker->set_mouse_button_pressed_callback
- (
- [ctx](const mouse_button_pressed_event& event)
- {
- for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
- {
- auto [name, value] = ctx->menu_item_texts[i];
-
- const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_world_bounds());
- float min_x = name_bounds.min_point.x;
- float min_y = name_bounds.min_point.y;
- float max_x = name_bounds.max_point.x;
- float max_y = name_bounds.max_point.y;
- if (value)
- {
- const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_world_bounds());
- min_x = std::min<float>(min_x, value_bounds.min_point.x);
- min_y = std::min<float>(min_y, value_bounds.min_point.y);
- max_x = std::max<float>(max_x, value_bounds.max_point.x);
- max_y = std::max<float>(max_y, value_bounds.max_point.y);
- }
-
- const auto& viewport = ctx->app->get_viewport_dimensions();
- const float x = static_cast<float>(event.x - viewport[0] / 2);
- const float y = static_cast<float>((viewport[1] - event.y + 1) - viewport[1] / 2);
-
- if (x >= min_x && x <= max_x)
- {
- if (y >= min_y && y <= max_y)
- {
- *ctx->menu_item_index = i;
- update_text_color(ctx);
-
- if (event.button == 1)
- {
- auto callback = ctx->menu_select_callbacks[i];
- if (callback)
- callback();
- }
- else if (event.button == 3)
- {
- auto callback = ctx->menu_left_callbacks[i];
- if (callback)
- callback();
- }
-
- return;
- }
- }
- }
- }
- );
- }
-
- void clear_controls(game::context* ctx)
- {
- ctx->controls["menu_up"]->set_activated_callback(nullptr);
- ctx->controls["menu_down"]->set_activated_callback(nullptr);
- ctx->controls["menu_left"]->set_activated_callback(nullptr);
- ctx->controls["menu_right"]->set_activated_callback(nullptr);
- ctx->controls["menu_select"]->set_activated_callback(nullptr);
- ctx->controls["menu_back"]->set_activated_callback(nullptr);
-
- ctx->menu_mouse_tracker->set_mouse_moved_callback(nullptr);
- ctx->menu_mouse_tracker->set_mouse_button_pressed_callback(nullptr);
- }
-
- } // namespace menu
- } // namespace game
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