virtualx-engine/core/input_map.cpp
Rémi Verschelde 16f6a5b139
One Copyright Update to rule them all
As many open source projects have started doing it, we're removing the
current year from the copyright notice, so that we don't need to bump
it every year.

It seems like only the first year of publication is technically
relevant for copyright notices, and even that seems to be something
that many companies stopped listing altogether (in a version controlled
codebase, the commits are a much better source of date of publication
than a hardcoded copyright statement).

We also now list Godot Engine contributors first as we're collectively
the current maintainers of the project, and we clarify that the
"exclusive" copyright of the co-founders covers the timespan before
opensourcing (their further contributions are included as part of Godot
Engine contributors).

Also fixed "cf." Frenchism - it's meant as "refer to / see".

Backported from #70885.
2023-01-10 15:32:59 +01:00

375 lines
12 KiB
C++

/**************************************************************************/
/* input_map.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "input_map.h"
#include "core/os/input.h"
#include "core/os/keyboard.h"
#include "core/project_settings.h"
InputMap *InputMap::singleton = nullptr;
int InputMap::ALL_DEVICES = -1;
void InputMap::_bind_methods() {
ClassDB::bind_method(D_METHOD("has_action", "action"), &InputMap::has_action);
ClassDB::bind_method(D_METHOD("get_actions"), &InputMap::_get_actions);
ClassDB::bind_method(D_METHOD("add_action", "action", "deadzone"), &InputMap::add_action, DEFVAL(0.5f));
ClassDB::bind_method(D_METHOD("erase_action", "action"), &InputMap::erase_action);
ClassDB::bind_method(D_METHOD("action_set_deadzone", "action", "deadzone"), &InputMap::action_set_deadzone);
ClassDB::bind_method(D_METHOD("action_get_deadzone", "action"), &InputMap::action_get_deadzone);
ClassDB::bind_method(D_METHOD("action_add_event", "action", "event"), &InputMap::action_add_event);
ClassDB::bind_method(D_METHOD("action_has_event", "action", "event"), &InputMap::action_has_event);
ClassDB::bind_method(D_METHOD("action_erase_event", "action", "event"), &InputMap::action_erase_event);
ClassDB::bind_method(D_METHOD("action_erase_events", "action"), &InputMap::action_erase_events);
ClassDB::bind_method(D_METHOD("get_action_list", "action"), &InputMap::_get_action_list);
ClassDB::bind_method(D_METHOD("event_is_action", "event", "action", "exact_match"), &InputMap::event_is_action, DEFVAL(false));
ClassDB::bind_method(D_METHOD("load_from_globals"), &InputMap::load_from_globals);
}
/**
* Returns an nonexistent action error message with a suggestion of the closest
* matching action name (if possible).
*/
String InputMap::suggest_actions(const StringName &p_action) const {
List<StringName> actions = get_actions();
StringName closest_action;
float closest_similarity = 0.0;
// Find the most action with the most similar name.
for (List<StringName>::Element *E = actions.front(); E; E = E->next()) {
const float similarity = String(E->get()).similarity(p_action);
if (similarity > closest_similarity) {
closest_action = E->get();
closest_similarity = similarity;
}
}
String error_message = vformat("The InputMap action \"%s\" doesn't exist.", p_action);
if (closest_similarity >= 0.4) {
// Only include a suggestion in the error message if it's similar enough.
error_message += vformat(" Did you mean \"%s\"?", closest_action);
}
return error_message;
}
void InputMap::add_action(const StringName &p_action, float p_deadzone) {
ERR_FAIL_COND_MSG(input_map.has(p_action), "InputMap already has action \"" + String(p_action) + "\".");
input_map[p_action] = Action();
static int last_id = 1;
input_map[p_action].id = last_id;
input_map[p_action].deadzone = p_deadzone;
last_id++;
}
void InputMap::erase_action(const StringName &p_action) {
ERR_FAIL_COND_MSG(!input_map.has(p_action), suggest_actions(p_action));
input_map.erase(p_action);
}
Array InputMap::_get_actions() {
Array ret;
List<StringName> actions = get_actions();
if (actions.empty()) {
return ret;
}
for (const List<StringName>::Element *E = actions.front(); E; E = E->next()) {
ret.push_back(E->get());
}
return ret;
}
List<StringName> InputMap::get_actions() const {
List<StringName> actions = List<StringName>();
if (input_map.empty()) {
return actions;
}
for (Map<StringName, Action>::Element *E = input_map.front(); E; E = E->next()) {
actions.push_back(E->key());
}
return actions;
}
List<Ref<InputEvent>>::Element *InputMap::_find_event(Action &p_action, const Ref<InputEvent> &p_event, bool p_exact_match, bool *p_pressed, float *p_strength, float *p_raw_strength) const {
ERR_FAIL_COND_V(!p_event.is_valid(), nullptr);
for (List<Ref<InputEvent>>::Element *E = p_action.inputs.front(); E; E = E->next()) {
const Ref<InputEvent> e = E->get();
//if (e.type != Ref<InputEvent>::KEY && e.device != p_event.device) -- unsure about the KEY comparison, why is this here?
// continue;
int device = e->get_device();
if (device == ALL_DEVICES || device == p_event->get_device()) {
if (e->action_match(p_event, p_exact_match, p_pressed, p_strength, p_raw_strength, p_action.deadzone)) {
return E;
}
}
}
return nullptr;
}
bool InputMap::has_action(const StringName &p_action) const {
return input_map.has(p_action);
}
float InputMap::action_get_deadzone(const StringName &p_action) {
ERR_FAIL_COND_V_MSG(!input_map.has(p_action), 0.0f, suggest_actions(p_action));
return input_map[p_action].deadzone;
}
void InputMap::action_set_deadzone(const StringName &p_action, float p_deadzone) {
ERR_FAIL_COND_MSG(!input_map.has(p_action), suggest_actions(p_action));
input_map[p_action].deadzone = p_deadzone;
}
void InputMap::action_add_event(const StringName &p_action, const Ref<InputEvent> &p_event) {
ERR_FAIL_COND_MSG(p_event.is_null(), "It's not a reference to a valid InputEvent object.");
ERR_FAIL_COND_MSG(!input_map.has(p_action), suggest_actions(p_action));
if (_find_event(input_map[p_action], p_event, true)) {
return; // Already added.
}
input_map[p_action].inputs.push_back(p_event);
}
bool InputMap::action_has_event(const StringName &p_action, const Ref<InputEvent> &p_event) {
ERR_FAIL_COND_V_MSG(!input_map.has(p_action), false, suggest_actions(p_action));
return (_find_event(input_map[p_action], p_event, true) != nullptr);
}
void InputMap::action_erase_event(const StringName &p_action, const Ref<InputEvent> &p_event) {
ERR_FAIL_COND_MSG(!input_map.has(p_action), suggest_actions(p_action));
List<Ref<InputEvent>>::Element *E = _find_event(input_map[p_action], p_event, true);
if (E) {
input_map[p_action].inputs.erase(E);
if (Input::get_singleton()->is_action_pressed(p_action)) {
Input::get_singleton()->action_release(p_action);
}
}
}
void InputMap::action_erase_events(const StringName &p_action) {
ERR_FAIL_COND_MSG(!input_map.has(p_action), suggest_actions(p_action));
input_map[p_action].inputs.clear();
}
Array InputMap::_get_action_list(const StringName &p_action) {
Array ret;
const List<Ref<InputEvent>> *al = get_action_list(p_action);
if (al) {
for (const List<Ref<InputEvent>>::Element *E = al->front(); E; E = E->next()) {
ret.push_back(E->get());
}
}
return ret;
}
const List<Ref<InputEvent>> *InputMap::get_action_list(const StringName &p_action) {
const Map<StringName, Action>::Element *E = input_map.find(p_action);
if (!E) {
return nullptr;
}
return &E->get().inputs;
}
bool InputMap::event_is_action(const Ref<InputEvent> &p_event, const StringName &p_action, bool p_exact_match) const {
return event_get_action_status(p_event, p_action, p_exact_match);
}
bool InputMap::event_get_action_status(const Ref<InputEvent> &p_event, const StringName &p_action, bool p_exact_match, bool *p_pressed, float *p_strength, float *p_raw_strength) const {
Map<StringName, Action>::Element *E = input_map.find(p_action);
ERR_FAIL_COND_V_MSG(!E, false, suggest_actions(p_action));
Ref<InputEventAction> input_event_action = p_event;
if (input_event_action.is_valid()) {
bool pressed = input_event_action->is_pressed();
if (p_pressed != nullptr) {
*p_pressed = pressed;
}
if (p_strength != nullptr) {
*p_strength = pressed ? input_event_action->get_strength() : 0.0f;
}
return input_event_action->get_action() == p_action;
}
bool pressed;
float strength;
float raw_strength;
List<Ref<InputEvent>>::Element *event = _find_event(E->get(), p_event, p_exact_match, &pressed, &strength, &raw_strength);
if (event != nullptr) {
if (p_pressed != nullptr) {
*p_pressed = pressed;
}
if (p_strength != nullptr) {
*p_strength = strength;
}
if (p_raw_strength != nullptr) {
*p_raw_strength = raw_strength;
}
return true;
} else {
return false;
}
}
const Map<StringName, InputMap::Action> &InputMap::get_action_map() const {
return input_map;
}
void InputMap::load_from_globals() {
input_map.clear();
List<PropertyInfo> pinfo;
ProjectSettings::get_singleton()->get_property_list(&pinfo);
for (List<PropertyInfo>::Element *E = pinfo.front(); E; E = E->next()) {
const PropertyInfo &pi = E->get();
if (!pi.name.begins_with("input/")) {
continue;
}
String name = pi.name.substr(pi.name.find("/") + 1, pi.name.length());
Dictionary action = ProjectSettings::get_singleton()->get(pi.name);
float deadzone = action.has("deadzone") ? (float)action["deadzone"] : 0.5f;
Array events = action["events"];
add_action(name, deadzone);
for (int i = 0; i < events.size(); i++) {
Ref<InputEvent> event = events[i];
if (event.is_null()) {
continue;
}
action_add_event(name, event);
}
}
}
void InputMap::load_default() {
Ref<InputEventKey> key;
add_action("ui_accept");
key.instance();
key->set_scancode(KEY_ENTER);
action_add_event("ui_accept", key);
key.instance();
key->set_scancode(KEY_KP_ENTER);
action_add_event("ui_accept", key);
key.instance();
key->set_scancode(KEY_SPACE);
action_add_event("ui_accept", key);
add_action("ui_select");
key.instance();
key->set_scancode(KEY_SPACE);
action_add_event("ui_select", key);
add_action("ui_cancel");
key.instance();
key->set_scancode(KEY_ESCAPE);
action_add_event("ui_cancel", key);
add_action("ui_focus_next");
key.instance();
key->set_scancode(KEY_TAB);
action_add_event("ui_focus_next", key);
add_action("ui_focus_prev");
key.instance();
key->set_scancode(KEY_TAB);
key->set_shift(true);
action_add_event("ui_focus_prev", key);
add_action("ui_left");
key.instance();
key->set_scancode(KEY_LEFT);
action_add_event("ui_left", key);
add_action("ui_right");
key.instance();
key->set_scancode(KEY_RIGHT);
action_add_event("ui_right", key);
add_action("ui_up");
key.instance();
key->set_scancode(KEY_UP);
action_add_event("ui_up", key);
add_action("ui_down");
key.instance();
key->set_scancode(KEY_DOWN);
action_add_event("ui_down", key);
add_action("ui_page_up");
key.instance();
key->set_scancode(KEY_PAGEUP);
action_add_event("ui_page_up", key);
add_action("ui_page_down");
key.instance();
key->set_scancode(KEY_PAGEDOWN);
action_add_event("ui_page_down", key);
add_action("ui_home");
key.instance();
key->set_scancode(KEY_HOME);
action_add_event("ui_home", key);
add_action("ui_end");
key.instance();
key->set_scancode(KEY_END);
action_add_event("ui_end", key);
}
InputMap::InputMap() {
ERR_FAIL_COND_MSG(singleton, "Singleton in InputMap already exist.");
singleton = this;
}