// SPDX-License-Identifier: BSD-2-Clause // Copyright (c) 2025 Kirill Dmitrievich // File: player_look.cc // Description: Client camera rotations #include "client/pch.hh" #include "client/entity/player_look.hh" #include "core/config/boolean.hh" #include "core/config/number.hh" #include "core/io/config_map.hh" #include "core/math/angles.hh" #include "shared/entity/head.hh" #include "shared/world/dimension.hh" #include "client/config/gamepad_axis.hh" #include "client/config/gamepad_button.hh" #include "client/config/keybind.hh" #include "client/gui/settings.hh" #include "client/io/gamepad.hh" #include "client/io/glfw.hh" #include "client/const.hh" #include "client/globals.hh" #include "client/session.hh" constexpr static float PITCH_MIN = -1.0f * math::radians(90.0f); constexpr static float PITCH_MAX = +1.0f * math::radians(90.0f); // Mouse options static config::Boolean mouse_raw_input(true); static config::Unsigned mouse_sensitivity(25U, 1U, 100U); // Gamepad options static config::Float gamepad_fastlook_factor(1.5f, 1.0f, 5.0f); static config::Unsigned gamepad_accel_pitch(15U, 1U, 100U); static config::Unsigned gamepad_accel_yaw(25U, 1U, 100U); // Gamepad axes static config::GamepadAxis axis_pitch(GLFW_GAMEPAD_AXIS_LEFT_Y, false); static config::GamepadAxis axis_yaw(GLFW_GAMEPAD_AXIS_LEFT_X, false); // Gamepad buttons static config::GamepadButton button_fastlook(GLFW_GAMEPAD_BUTTON_LEFT_THUMB); static bool fastlook_enabled; static glm::fvec2 last_cursor; static void add_angles(float pitch, float yaw) { if(session::is_ingame()) { auto& head = globals::dimension->entities.get(globals::player); head.angles[0] += pitch; head.angles[1] += yaw; head.angles[0] = glm::clamp(head.angles[0], PITCH_MIN, PITCH_MAX); head.angles = math::wrap_180(head.angles); // Client-side head angles are not interpolated; // Re-assigning the previous state after the current // state has been already modified is certainly a way // to circumvent the interpolation applied to anything with a head globals::dimension->entities.emplace_or_replace(globals::player, head); } } static void on_glfw_cursor_pos(const GlfwCursorPosEvent& event) { if(gamepad::available && gamepad::active.get_value()) { // The player is assumed to be using // a gamepad instead of mouse and keyboard last_cursor = event.pos; return; } if(globals::gui_screen || !session::is_ingame()) { // UI is visible or we're not in-game last_cursor = event.pos; return; } auto dx = -0.01f * static_cast(mouse_sensitivity.get_value()) * math::radians(event.pos.x - last_cursor.x); auto dy = -0.01f * static_cast(mouse_sensitivity.get_value()) * math::radians(event.pos.y - last_cursor.y); add_angles(dy, dx); last_cursor = event.pos; } static void on_gamepad_button(const GamepadButtonEvent& event) { if(button_fastlook.equals(event.button)) { fastlook_enabled = event.action == GLFW_PRESS; } } void player_look::init(void) { globals::client_config.add_value("player_look.mouse.raw_input", mouse_raw_input); globals::client_config.add_value("player_look.mouse.sensitivity", mouse_sensitivity); globals::client_config.add_value("player_look.gamepad.fastlook_factor", gamepad_fastlook_factor); globals::client_config.add_value("player_look.gamepad.accel_pitch", gamepad_accel_pitch); globals::client_config.add_value("player_look.gamepad.accel_yaw", gamepad_accel_yaw); globals::client_config.add_value("player_look.gp_axis.pitch", axis_pitch); globals::client_config.add_value("player_look.gp_axis.yaw", axis_yaw); globals::client_config.add_value("player_look.gp_button.fastlook", button_fastlook); settings::add_slider(0, mouse_sensitivity, settings_location::MOUSE, "player_look.mouse.sensitivity", true); settings::add_checkbox(1, mouse_raw_input, settings_location::MOUSE, "player_look.mouse.raw_input", true); settings::add_slider(0, gamepad_accel_pitch, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.accel_pitch", false); settings::add_slider(1, gamepad_accel_yaw, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.accel_yaw", false); settings::add_gamepad_axis(2, axis_pitch, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_axis.pitch"); settings::add_gamepad_axis(3, axis_yaw, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_axis.yaw"); settings::add_slider(4, gamepad_fastlook_factor, settings_location::GAMEPAD_GAMEPLAY, "player_look.gamepad.fastlook_factor", true, "%.02f"); settings::add_gamepad_button(5, button_fastlook, settings_location::GAMEPAD_GAMEPLAY, "player_look.gp_button.fastlook"); fastlook_enabled = false; last_cursor.x = 0.5f * static_cast(globals::width); last_cursor.y = 0.5f * static_cast(globals::height); globals::dispatcher.sink().connect<&on_glfw_cursor_pos>(); globals::dispatcher.sink().connect<&on_gamepad_button>(); } void player_look::update_late(void) { if(gamepad::available && gamepad::active.get_value() && !globals::gui_screen) { auto pitch_value = axis_pitch.get_value(gamepad::state, gamepad::deadzone.get_value()); auto yaw_value = axis_yaw.get_value(gamepad::state, gamepad::deadzone.get_value()); if(fastlook_enabled) { // Fastlook allows the camera to // rotate quicker when a button is held down pitch_value *= gamepad_fastlook_factor.get_value(); yaw_value *= gamepad_fastlook_factor.get_value(); } pitch_value *= 0.001f * static_cast(gamepad_accel_pitch.get_value()); yaw_value *= 0.001f * static_cast(gamepad_accel_yaw.get_value()); add_angles(pitch_value, yaw_value); } if(!globals::gui_screen && session::is_ingame()) { glfwSetInputMode(globals::window, GLFW_CURSOR, GLFW_CURSOR_DISABLED); glfwSetInputMode(globals::window, GLFW_RAW_MOUSE_MOTION, mouse_raw_input.get_value()); } else { glfwSetInputMode(globals::window, GLFW_CURSOR, GLFW_CURSOR_NORMAL); glfwSetInputMode(globals::window, GLFW_RAW_MOUSE_MOTION, false); } }