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#include "client/pch.hh"
#include "client/gamepad.hh"
#include "core/cmdline.hh"
#include "core/config.hh"
#include "core/constexpr.hh"
#include "client/glfw.hh"
#include "client/globals.hh"
#include "client/settings.hh"
#include "client/toggles.hh"
constexpr static int INVALID_GAMEPAD_ID = INT_MAX;
constexpr static std::size_t NUM_AXES = static_cast<std::size_t>(GLFW_GAMEPAD_AXIS_LAST + 1);
constexpr static std::size_t NUM_BUTTONS = static_cast<std::size_t>(GLFW_GAMEPAD_BUTTON_LAST + 1);
constexpr static float GAMEPAD_AXIS_EVENT_THRESHOLD = 0.5f;
static int active_gamepad_id;
bool gamepad::available = false;
ConfigFloat gamepad::deadzone(0.00f, 0.00f, 0.66f);
ConfigBoolean gamepad::active(false);
GLFWgamepadstate gamepad::state;
GLFWgamepadstate gamepad::last_state;
static void on_toggle_enable(const ToggleEnabledEvent &event)
{
if(event.type == TOGGLE_USE_GAMEPAD) {
gamepad::active.set_value(true);
return;
}
}
static void on_toggle_disable(const ToggleDisabledEvent &event)
{
if(event.type == TOGGLE_USE_GAMEPAD) {
gamepad::active.set_value(false);
return;
}
}
static void on_glfw_joystick_event(const GlfwJoystickEvent &event)
{
if((event.event_type == GLFW_CONNECTED) && glfwJoystickIsGamepad(event.joystick_id) && (active_gamepad_id == INVALID_GAMEPAD_ID)) {
gamepad::available = true;
active_gamepad_id = event.joystick_id;
for(int i = 0; i < NUM_AXES; gamepad::last_state.axes[i++] = 0.0f);
for(int i = 0; i < NUM_BUTTONS; gamepad::last_state.buttons[i++] = GLFW_RELEASE);
spdlog::warn("gamepad: detected gamepad: {}", glfwGetGamepadName(event.joystick_id));
return;
}
if((event.event_type == GLFW_DISCONNECTED) && (active_gamepad_id == event.joystick_id)) {
gamepad::available = false;
active_gamepad_id = INVALID_GAMEPAD_ID;
for(int i = 0; i < NUM_AXES; gamepad::last_state.axes[i++] = 0.0f);
for(int i = 0; i < NUM_BUTTONS; gamepad::last_state.buttons[i++] = GLFW_RELEASE);
spdlog::warn("gamepad: disconnected");
return;
}
}
void gamepad::init(void)
{
gamepad::available = false;
active_gamepad_id = INVALID_GAMEPAD_ID;
globals::client_config.add_value("gamepad.deadzone", gamepad::deadzone);
globals::client_config.add_value("gamepad.active", gamepad::active);
settings::add_checkbox(0, gamepad::active, settings_location::GAMEPAD, "gamepad.active", true);
settings::add_slider(1, gamepad::deadzone, settings_location::GAMEPAD, "gamepad.deadzone", true, "%.03f");
auto mappings_path = cmdline::get("gpmap", "misc/gamecontrollerdb.txt");
auto mappings_file = PHYSFS_openRead(mappings_path);
if(mappings_file) {
spdlog::info("gamepad: using mappings from {}", mappings_path);
auto mappings_string = std::string(PHYSFS_fileLength(mappings_file), char(0x00));
PHYSFS_readBytes(mappings_file, mappings_string.data(), mappings_string.size());
glfwUpdateGamepadMappings(mappings_string.c_str());
PHYSFS_close(mappings_file);
}
for(int joystick = 0; joystick <= GLFW_JOYSTICK_LAST; joystick += 1) {
if(glfwJoystickIsGamepad(joystick)) {
gamepad::available = true;
active_gamepad_id = joystick;
for(int i = 0; i < NUM_AXES; gamepad::last_state.axes[i++] = 0.0f);
for(int i = 0; i < NUM_BUTTONS; gamepad::last_state.buttons[i++] = GLFW_RELEASE);
spdlog::warn("gamepad: detected gamepad: {}", glfwGetGamepadName(joystick));
break;
}
}
for(int i = 0; i < NUM_AXES; gamepad::state.axes[i++] = 0.0f);
for(int i = 0; i < NUM_BUTTONS; gamepad::state.buttons[i++] = GLFW_RELEASE);
globals::dispatcher.sink<ToggleEnabledEvent>().connect<&on_toggle_enable>();
globals::dispatcher.sink<ToggleDisabledEvent>().connect<&on_toggle_disable>();
globals::dispatcher.sink<GlfwJoystickEvent>().connect<&on_glfw_joystick_event>();
}
void gamepad::update_late(void)
{
if(active_gamepad_id == INVALID_GAMEPAD_ID) {
// No active gamepad found
return;
}
if(glfwGetGamepadState(active_gamepad_id, &gamepad::state)) {
for(int i = 0; i < NUM_AXES; ++i) {
if((cxpr::abs(gamepad::state.axes[i]) > GAMEPAD_AXIS_EVENT_THRESHOLD) && (cxpr::abs(gamepad::last_state.axes[i]) <= GAMEPAD_AXIS_EVENT_THRESHOLD)) {
GamepadAxisEvent event;
event.action = GLFW_PRESS;
event.axis = i;
globals::dispatcher.enqueue(event);
continue;
}
if((cxpr::abs(gamepad::state.axes[i]) <= GAMEPAD_AXIS_EVENT_THRESHOLD) && (cxpr::abs(gamepad::last_state.axes[i]) > GAMEPAD_AXIS_EVENT_THRESHOLD)) {
GamepadAxisEvent event;
event.action = GLFW_RELEASE;
event.axis = i;
globals::dispatcher.enqueue(event);
continue;
}
}
for(int i = 0; i < NUM_BUTTONS; ++i) {
if(gamepad::state.buttons[i] == gamepad::last_state.buttons[i]) {
// Nothing happens
continue;
}
GamepadButtonEvent event;
event.action = gamepad::state.buttons[i];
event.button = i;
globals::dispatcher.enqueue(event);
}
}
gamepad::last_state = gamepad::state;
}
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