💿🐜 Antkeeper source code
https://antkeeper.com
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290 lines
7.8 KiB
290 lines
7.8 KiB
/*
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* Copyright (C) 2023 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 <engine/scene/text.hpp>
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#include <engine/animation/animation.hpp>
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#include <engine/animation/animator.hpp>
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#include <engine/animation/ease.hpp>
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#include <engine/config.hpp>
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#include <algorithm>
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#include <engine/math/vector.hpp>
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namespace menu {
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void init_menu_item_index(::game& ctx, hash::fnv1a32_t 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& 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& 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 math::fvec4& color = (i == *ctx.menu_item_index) ? config::menu_active_color : config::menu_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 align_text(::game& ctx, bool center, bool has_back, float anchor_y)
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{
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const math::fvec2 viewport_size = math::fvec2(ctx.window->get_viewport_size());
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const math::fvec2 viewport_center = viewport_size * 0.5f;
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const float viewport_padding = viewport_size.y() * (1.0f / 9.0f);
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// Calculate menu width
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float m_width = ctx.menu_font.get_glyph_metrics(U'M').width;
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float column_spacing = m_width * 2.0f;
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const float min_two_column_row_width = m_width * 18.0f;
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float menu_width = 0.0f;
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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 row width
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const auto& name_bounds = name->get_bounds();
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row_width += name_bounds.max.x() - name_bounds.min.x();
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if (value)
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{
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// Add value width to row width
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const auto& value_bounds = value->get_bounds();
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row_width += value_bounds.max.x() - value_bounds.min.x();
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// Add column spacing to row width
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row_width += column_spacing;
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row_width = std::max<float>(min_two_column_row_width, row_width);
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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;
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if (has_back)
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menu_height = (ctx.menu_item_texts.size() - 1) * ctx.menu_font.get_font_metrics().linespace - ctx.menu_font.get_font_metrics().linegap;
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else
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menu_height = ctx.menu_item_texts.size() * ctx.menu_font.get_font_metrics().linespace - ctx.menu_font.get_font_metrics().linegap;
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float menu_x = viewport_center.x() - menu_width * 0.5f;
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float menu_y = viewport_center.y() + anchor_y + menu_height * 0.5f - ctx.menu_font.get_font_metrics().size;
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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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if (has_back && i == ctx.menu_item_texts.size() - 1)
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{
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y = viewport_padding;// + ctx.menu_font.get_font_metrics().linespace;
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}
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if (center || i == ctx.menu_item_texts.size() - 1)
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{
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const auto& name_bounds = name->get_bounds();
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const float name_width = name_bounds.max.x() - name_bounds.min.x();
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x = viewport_center.x() - name_width * 0.5f;
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}
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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 = value->get_bounds();
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const float value_width = value_bounds.max.x() - value_bounds.min.x();
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if (center || i == ctx.menu_item_texts.size() - 1)
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x = viewport_center.x() - value_width * 0.5f;
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else
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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& 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& 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& 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& ctx)
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{
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ctx.menu_item_texts.clear();
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}
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void delete_animations(::game& ctx)
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{
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ctx.animator->remove_animation(ctx.menu_fade_animation.get());
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ctx.menu_fade_animation.reset();
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}
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void clear_callbacks(::game& 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_animations(::game& ctx)
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{
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ctx.menu_fade_animation = std::make_unique<animation<float>>();
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animation_channel<float>* opacity_channel = ctx.menu_fade_animation->add_channel(0);
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ctx.menu_fade_animation->set_frame_callback
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(
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[&ctx](int channel, const float& opacity)
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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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math::fvec4 color = (i == *ctx.menu_item_index) ? config::menu_active_color : config::menu_inactive_color;
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color[3] = color[3] * opacity;
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if (name)
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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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);
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ctx.animator->add_animation(ctx.menu_fade_animation.get());
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}
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void fade_in(::game& ctx, const std::function<void()>& end_callback)
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{
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ctx.menu_fade_animation->set_interpolator(ease<float>::out_cubic);
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animation_channel<float>* opacity_channel = ctx.menu_fade_animation->get_channel(0);
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opacity_channel->remove_keyframes();
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opacity_channel->insert_keyframe({0.0f, 0.0f});
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opacity_channel->insert_keyframe({config::menu_fade_in_duration, 1.0f});
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ctx.menu_fade_animation->set_end_callback(end_callback);
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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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math::fvec4 color = (i == *ctx.menu_item_index) ? config::menu_active_color : config::menu_inactive_color;
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color[3] = 0.0f;
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if (name)
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{
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name->set_color(color);
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}
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if (value)
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{
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value->set_color(color);
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}
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}
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ctx.menu_fade_animation->stop();
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ctx.menu_fade_animation->play();
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}
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void fade_out(::game& ctx, const std::function<void()>& end_callback)
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{
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ctx.menu_fade_animation->set_interpolator(ease<float>::out_cubic);
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animation_channel<float>* opacity_channel = ctx.menu_fade_animation->get_channel(0);
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opacity_channel->remove_keyframes();
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opacity_channel->insert_keyframe({0.0f, 1.0f});
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opacity_channel->insert_keyframe({config::menu_fade_out_duration, 0.0f});
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ctx.menu_fade_animation->set_end_callback(end_callback);
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ctx.menu_fade_animation->stop();
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ctx.menu_fade_animation->play();
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}
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void fade_in_bg(::game& ctx)
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{
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ctx.menu_bg_fade_out_animation->stop();
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ctx.menu_bg_fade_in_animation->stop();
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ctx.menu_bg_fade_in_animation->play();
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}
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void fade_out_bg(::game& ctx)
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{
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ctx.menu_bg_fade_in_animation->stop();
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ctx.menu_bg_fade_out_animation->stop();
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ctx.menu_bg_fade_out_animation->play();
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}
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} // namespace menu
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