💿🐜 Antkeeper source code
https://antkeeper.com
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227 lines
6.0 KiB
227 lines
6.0 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/controls.hpp"
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#include "game/menu.hpp"
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#include <engine/config.hpp>
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void setup_menu_controls(::game& ctx)
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{
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// Setup menu controls
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_up_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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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 = static_cast<int>(ctx.menu_item_texts.size()) - 1;
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::menu::update_text_color(ctx);
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}
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)
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);
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_down_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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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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::menu::update_text_color(ctx);
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}
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)
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);
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_left_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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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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);
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_right_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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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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);
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_select_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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{
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const 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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);
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ctx.menu_action_subscriptions.emplace_back
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(
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ctx.menu_back_action.get_activated_channel().subscribe
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(
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[&ctx](const auto& event)
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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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);
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// Set activation threshold for menu navigation controls to mitigate drifting gamepad axes
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auto menu_action_threshold = [](float x) -> bool
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{
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return x > 0.5f;
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};
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ctx.menu_up_action.set_threshold_function(menu_action_threshold);
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ctx.menu_down_action.set_threshold_function(menu_action_threshold);
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ctx.menu_left_action.set_threshold_function(menu_action_threshold);
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ctx.menu_right_action.set_threshold_function(menu_action_threshold);
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}
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void enable_menu_controls(::game& ctx)
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{
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ctx.menu_action_map.enable();
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// Function to select menu item at mouse position
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auto select_menu_item = [&ctx](const math::fvec2& mouse_position) -> bool
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{
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const float padding = config::menu_mouseover_padding * 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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const auto& name_bounds = name->get_bounds();
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float min_x = name_bounds.min.x();
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float min_y = name_bounds.min.y();
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float max_x = name_bounds.max.x();
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float max_y = name_bounds.max.y();
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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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min_x = std::min<float>(min_x, value_bounds.min.x());
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min_y = std::min<float>(min_y, value_bounds.min.y());
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max_x = std::max<float>(max_x, value_bounds.max.x());
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max_y = std::max<float>(max_y, value_bounds.max.y());
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}
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min_x -= padding;
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min_y -= padding;
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max_x += padding;
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max_y += padding;
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const auto& viewport = ctx.window->get_viewport_size();
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const float x = mouse_position.x();
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const float y = static_cast<float>((viewport[1] - mouse_position.y() + 1));
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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 = static_cast<int>(i);
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::menu::update_text_color(ctx);
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return true;
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}
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}
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}
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return false;
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};
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// Enable menu mouse tracking
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ctx.menu_mouse_subscriptions.clear();
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ctx.menu_mouse_subscriptions.emplace_back
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(
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ctx.input_manager->get_event_dispatcher().subscribe<input::mouse_moved_event>
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(
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[&ctx, select_menu_item](const auto& event)
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{
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// Select menu item at mouse position (if any)
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select_menu_item(math::fvec2(event.position));
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}
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)
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);
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ctx.menu_mouse_subscriptions.emplace_back
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(
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ctx.input_manager->get_event_dispatcher().subscribe<input::mouse_button_pressed_event>
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(
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[&ctx, select_menu_item](const auto& event)
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{
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// Select menu item at mouse position (if any)
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if (select_menu_item(math::fvec2(event.position)))
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{
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// Determine appropriate menu item callback
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auto callback = ctx.menu_select_callbacks[*ctx.menu_item_index];
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if (event.button == input::mouse_button::left)
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{
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if (ctx.menu_left_callbacks[*ctx.menu_item_index])
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{
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callback = ctx.menu_left_callbacks[*ctx.menu_item_index];
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}
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}
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else if (event.button == input::mouse_button::right)
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{
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if (ctx.menu_right_callbacks[*ctx.menu_item_index])
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{
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callback = ctx.menu_right_callbacks[*ctx.menu_item_index];
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}
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}
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// Invoke menu item callback
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if (callback)
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{
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callback();
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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 disable_menu_controls(::game& ctx)
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{
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ctx.menu_action_map.disable();
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ctx.menu_up_action.reset();
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ctx.menu_down_action.reset();
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ctx.menu_left_action.reset();
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ctx.menu_right_action.reset();
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ctx.menu_select_action.reset();
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ctx.menu_back_action.reset();
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ctx.menu_modifier_action.reset();
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ctx.menu_mouse_subscriptions.clear();
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}
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