💿🐜 Antkeeper source code
https://antkeeper.com
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348 lines
9.0 KiB
348 lines
9.0 KiB
/*
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* Copyright (C) 2021 Christopher J. Howard
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*
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* This file is part of Antkeeper source code.
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*
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* Antkeeper source code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "game/menu.hpp"
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#include "scene/text.hpp"
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#include "application.hpp"
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#include <algorithm>
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namespace game {
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namespace menu {
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void init_menu_item_index(game::context* ctx, const std::string& menu_name)
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{
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if (auto it = ctx->menu_item_indices.find(menu_name); it != ctx->menu_item_indices.end())
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{
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ctx->menu_item_index = &it->second;
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}
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else
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{
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ctx->menu_item_index = &ctx->menu_item_indices[menu_name];
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*ctx->menu_item_index = 0;
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}
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}
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void update_text_font(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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name->set_material(&ctx->menu_font_material);
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name->set_font(&ctx->menu_font);
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if (value)
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{
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value->set_material(&ctx->menu_font_material);
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value->set_font(&ctx->menu_font);
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}
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}
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}
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void update_text_color(game::context* ctx)
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{
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for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
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{
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auto [name, value] = ctx->menu_item_texts[i];
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const float4& color = (i == *ctx->menu_item_index) ? active_color : inactive_color;
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name->set_color(color);
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if (value)
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value->set_color(color);
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}
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}
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void update_text_tweens(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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name->update_tweens();
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if (value)
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value->update_tweens();
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}
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}
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void align_text(game::context* ctx)
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{
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// Calculate menu width
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float menu_width = 0.0f;
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float menu_spacing = ctx->menu_font.get_glyph_metrics(U'M').width;
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for (auto [name, value]: ctx->menu_item_texts)
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{
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float row_width = 0.0f;
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// Add name width to width
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const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_local_bounds());
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row_width += name_bounds.max_point.x - name_bounds.min_point.x;
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if (value)
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{
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// Add value width to width
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//const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_local_bounds());
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//row_width += value_bounds.max_point.x - value_bounds.min_point.x;
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// Add spacing to row width
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row_width += menu_spacing * 8.0f;
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}
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menu_width = std::max<float>(menu_width, row_width);
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}
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// Align texts
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float menu_height = ctx->menu_item_texts.size() * ctx->menu_font.get_font_metrics().linespace;
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float menu_x = -menu_width * 0.5f;
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float menu_y = menu_height * 0.5f - ctx->menu_font.get_font_metrics().linespace;
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for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
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{
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auto [name, value] = ctx->menu_item_texts[i];
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float x = menu_x;
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float y = menu_y - ctx->menu_font.get_font_metrics().linespace * i;
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name->set_translation({std::round(x), std::round(y), 0.0f});
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if (value)
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{
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const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_local_bounds());
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const float value_width = value_bounds.max_point.x - value_bounds.min_point.x;
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x = menu_x + menu_width - value_width;
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value->set_translation({std::round(x), std::round(y), 0.0f});
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}
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}
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}
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void refresh_text(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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name->refresh();
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if (value)
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value->refresh();
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}
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}
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void add_text_to_ui(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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ctx->ui_scene->add_object(name);
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if (value)
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ctx->ui_scene->add_object(value);
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}
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}
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void remove_text_from_ui(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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ctx->ui_scene->remove_object(name);
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if (value)
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ctx->ui_scene->remove_object(value);
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}
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}
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void delete_text(game::context* ctx)
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{
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for (auto [name, value]: ctx->menu_item_texts)
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{
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delete name;
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if (value)
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delete value;
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}
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ctx->menu_item_texts.clear();
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}
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void clear_callbacks(game::context* ctx)
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{
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// Clear menu item callbacks
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ctx->menu_left_callbacks.clear();
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ctx->menu_right_callbacks.clear();
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ctx->menu_select_callbacks.clear();
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ctx->menu_back_callback = nullptr;
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}
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void setup_controls(game::context* ctx)
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{
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ctx->controls["menu_up"]->set_activated_callback
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(
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[ctx]()
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{
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--(*ctx->menu_item_index);
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if (*ctx->menu_item_index < 0)
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*ctx->menu_item_index = ctx->menu_item_texts.size() - 1;
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update_text_color(ctx);
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}
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);
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ctx->controls["menu_down"]->set_activated_callback
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(
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[ctx]()
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{
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++(*ctx->menu_item_index);
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if (*ctx->menu_item_index >= ctx->menu_item_texts.size())
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*ctx->menu_item_index = 0;
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update_text_color(ctx);
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}
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);
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ctx->controls["menu_left"]->set_activated_callback
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(
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[ctx]()
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{
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auto callback = ctx->menu_left_callbacks[*ctx->menu_item_index];
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if (callback != nullptr)
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callback();
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}
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);
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ctx->controls["menu_right"]->set_activated_callback
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(
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[ctx]()
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{
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auto callback = ctx->menu_right_callbacks[*ctx->menu_item_index];
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if (callback != nullptr)
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callback();
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}
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);
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ctx->controls["menu_select"]->set_activated_callback
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(
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[ctx]()
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{
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auto callback = ctx->menu_select_callbacks[*ctx->menu_item_index];
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if (callback != nullptr)
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callback();
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}
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);
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ctx->controls["menu_back"]->set_activated_callback
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(
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[ctx]()
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{
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if (ctx->menu_back_callback != nullptr)
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ctx->menu_back_callback();
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}
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);
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ctx->menu_mouse_tracker->set_mouse_moved_callback
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(
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[ctx](const mouse_moved_event& event)
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{
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for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
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{
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auto [name, value] = ctx->menu_item_texts[i];
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const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_world_bounds());
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float min_x = name_bounds.min_point.x;
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float min_y = name_bounds.min_point.y;
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float max_x = name_bounds.max_point.x;
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float max_y = name_bounds.max_point.y;
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if (value)
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{
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const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_world_bounds());
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min_x = std::min<float>(min_x, value_bounds.min_point.x);
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min_y = std::min<float>(min_y, value_bounds.min_point.y);
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max_x = std::max<float>(max_x, value_bounds.max_point.x);
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max_y = std::max<float>(max_y, value_bounds.max_point.y);
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}
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const auto& viewport = ctx->app->get_viewport_dimensions();
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const float x = static_cast<float>(event.x - viewport[0] / 2);
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const float y = static_cast<float>((viewport[1] - event.y + 1) - viewport[1] / 2);
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if (x >= min_x && x <= max_x)
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{
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if (y >= min_y && y <= max_y)
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{
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*ctx->menu_item_index = i;
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update_text_color(ctx);
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break;
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}
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}
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}
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}
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);
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ctx->menu_mouse_tracker->set_mouse_button_pressed_callback
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(
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[ctx](const mouse_button_pressed_event& event)
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{
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for (std::size_t i = 0; i < ctx->menu_item_texts.size(); ++i)
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{
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auto [name, value] = ctx->menu_item_texts[i];
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const auto& name_bounds = static_cast<const geom::aabb<float>&>(name->get_world_bounds());
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float min_x = name_bounds.min_point.x;
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float min_y = name_bounds.min_point.y;
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float max_x = name_bounds.max_point.x;
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float max_y = name_bounds.max_point.y;
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if (value)
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{
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const auto& value_bounds = static_cast<const geom::aabb<float>&>(value->get_world_bounds());
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min_x = std::min<float>(min_x, value_bounds.min_point.x);
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min_y = std::min<float>(min_y, value_bounds.min_point.y);
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max_x = std::max<float>(max_x, value_bounds.max_point.x);
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max_y = std::max<float>(max_y, value_bounds.max_point.y);
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}
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const auto& viewport = ctx->app->get_viewport_dimensions();
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const float x = static_cast<float>(event.x - viewport[0] / 2);
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const float y = static_cast<float>((viewport[1] - event.y + 1) - viewport[1] / 2);
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if (x >= min_x && x <= max_x)
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{
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if (y >= min_y && y <= max_y)
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{
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*ctx->menu_item_index = i;
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update_text_color(ctx);
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if (event.button == 1)
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{
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auto callback = ctx->menu_select_callbacks[i];
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if (callback)
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callback();
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}
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else if (event.button == 3)
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{
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auto callback = ctx->menu_left_callbacks[i];
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if (callback)
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callback();
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}
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return;
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}
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}
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}
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}
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);
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}
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void clear_controls(game::context* ctx)
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{
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ctx->controls["menu_up"]->set_activated_callback(nullptr);
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ctx->controls["menu_down"]->set_activated_callback(nullptr);
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ctx->controls["menu_left"]->set_activated_callback(nullptr);
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ctx->controls["menu_right"]->set_activated_callback(nullptr);
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ctx->controls["menu_select"]->set_activated_callback(nullptr);
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ctx->controls["menu_back"]->set_activated_callback(nullptr);
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ctx->menu_mouse_tracker->set_mouse_moved_callback(nullptr);
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ctx->menu_mouse_tracker->set_mouse_button_pressed_callback(nullptr);
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}
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} // namespace menu
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} // namespace game
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