Add Input.is_physical_key_pressed method.

(cherry picked from commit 9877d91c4a573a7538c042f7f01b5c97e17dcd2d)

core/os/input.cpp

@@ -55,6 +55,7 @@ Input::MouseMode Input::get_mouse_mode() const {
 
 void Input::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_key_pressed", "scancode"), &Input::is_key_pressed);
+	ClassDB::bind_method(D_METHOD("is_physical_key_pressed", "scancode"), &Input::is_physical_key_pressed);
 	ClassDB::bind_method(D_METHOD("is_mouse_button_pressed", "button"), &Input::is_mouse_button_pressed);
 	ClassDB::bind_method(D_METHOD("is_joy_button_pressed", "device", "button"), &Input::is_joy_button_pressed);
 	ClassDB::bind_method(D_METHOD("is_action_pressed", "action", "exact"), &Input::is_action_pressed, DEFVAL(false));

core/os/input.h

@@ -79,6 +79,7 @@ public:
 	static Input *get_singleton();
 
 	virtual bool is_key_pressed(int p_scancode) const = 0;
+	virtual bool is_physical_key_pressed(int p_scancode) const = 0;
 	virtual bool is_mouse_button_pressed(int p_button) const = 0;
 	virtual bool is_joy_button_pressed(int p_device, int p_button) const = 0;
 	virtual bool is_action_pressed(const StringName &p_action, bool p_exact = false) const = 0;

doc/classes/Input.xml

@@ -264,6 +264,13 @@
 				Returns [code]true[/code] if you are pressing the mouse button specified with [enum ButtonList].
 			</description>
 		</method>
+		<method name="is_physical_key_pressed" qualifiers="const">
+			<return type="bool" />
+			<argument index="0" name="scancode" type="int" />
+			<description>
+				Returns [code]true[/code] if you are pressing the key in the physical location on the 101/102-key US QWERTY keyboard. You can pass a [enum KeyList] constant.
+			</description>
+		</method>
 		<method name="joy_connection_changed">
 			<return type="void" />
 			<argument index="0" name="device" type="int" />

main/input_default.cpp

@@ -76,6 +76,11 @@ bool InputDefault::is_key_pressed(int p_scancode) const {
 	return keys_pressed.has(p_scancode);
 }
 
+bool InputDefault::is_physical_key_pressed(int p_scancode) const {
+	_THREAD_SAFE_METHOD_
+	return physical_keys_pressed.has(p_scancode);
+}
+
 bool InputDefault::is_mouse_button_pressed(int p_button) const {
 	_THREAD_SAFE_METHOD_
 	return (mouse_button_mask & (1 << (p_button - 1))) != 0;
@@ -316,6 +321,13 @@ void InputDefault::_parse_input_event_impl(const Ref<InputEvent> &p_event, bool
 			keys_pressed.erase(k->get_scancode());
 		}
 	}
+	if (k.is_valid() && !k->is_echo() && k->get_physical_scancode() != 0) {
+		if (k->is_pressed()) {
+			physical_keys_pressed.insert(k->get_physical_scancode());
+		} else {
+			physical_keys_pressed.erase(k->get_physical_scancode());
+		}
+	}
 
 	Ref<InputEventMouseButton> mb = p_event;
 
@@ -716,6 +728,7 @@ void InputDefault::release_pressed_events() {
 	flush_buffered_events(); // this is needed to release actions strengths
 
 	keys_pressed.clear();
+	physical_keys_pressed.clear();
 	joy_buttons_pressed.clear();
 	_joy_axis.clear();
 

main/input_default.h

@@ -39,6 +39,7 @@ class InputDefault : public Input {
 
 	int mouse_button_mask;
 
+	Set<int> physical_keys_pressed;
 	Set<int> keys_pressed;
 	Set<int> joy_buttons_pressed;
 	Map<int, float> _joy_axis;
@@ -220,6 +221,7 @@ protected:
 
 public:
 	virtual bool is_key_pressed(int p_scancode) const;
+	virtual bool is_physical_key_pressed(int p_scancode) const;
 	virtual bool is_mouse_button_pressed(int p_button) const;
 	virtual bool is_joy_button_pressed(int p_device, int p_button) const;
 	virtual bool is_action_pressed(const StringName &p_action, bool p_exact = false) const;