Merge pull request #16902 from groud/analog_action_system

Allow actions to provide an analog value

core/input_map.cpp

@@ -41,9 +41,10 @@ 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"), &InputMap::add_action);
+	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", "deadzone"), &InputMap::action_set_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);
@@ -52,12 +53,13 @@ void InputMap::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("load_from_globals"), &InputMap::load_from_globals);
 }
 
-void InputMap::add_action(const StringName &p_action) {
+void InputMap::add_action(const StringName &p_action, float p_deadzone) {
 
 	ERR_FAIL_COND(input_map.has(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++;
 }
 
@@ -96,9 +98,9 @@ List<StringName> InputMap::get_actions() const {
 	return actions;
 }
 
-List<Ref<InputEvent> >::Element *InputMap::_find_event(List<Ref<InputEvent> > &p_list, const Ref<InputEvent> &p_event, bool p_action_test) const {
+List<Ref<InputEvent> >::Element *InputMap::_find_event(Action p_action, const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength) const {
 
-	for (List<Ref<InputEvent> >::Element *E = p_list.front(); E; E = E->next()) {
+	for (List<Ref<InputEvent> >::Element *E = p_action.inputs.front(); E; E = E->next()) {
 
 		const Ref<InputEvent> e = E->get();
 
@@ -106,9 +108,11 @@ List<Ref<InputEvent> >::Element *InputMap::_find_event(List<Ref<InputEvent> > &p
 		//	continue;
 
 		int device = e->get_device();
-		if (device == ALL_DEVICES || device == p_event->get_device())
-			if (e->action_match(p_event))
+		if (device == ALL_DEVICES || device == p_event->get_device()) {
+			if (e->action_match(p_event, p_pressed, p_strength, p_action.deadzone)) {
 				return E;
+			}
+		}
 	}
 
 	return NULL;
@@ -119,11 +123,18 @@ bool InputMap::has_action(const StringName &p_action) const {
 	return input_map.has(p_action);
 }
 
+void InputMap::action_set_deadzone(const StringName &p_action, float p_deadzone) {
+
+	ERR_FAIL_COND(!input_map.has(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(p_event.is_null());
 	ERR_FAIL_COND(!input_map.has(p_action));
-	if (_find_event(input_map[p_action].inputs, p_event))
+	if (_find_event(input_map[p_action], p_event))
 		return; //already gots
 
 	input_map[p_action].inputs.push_back(p_event);
@@ -132,14 +143,14 @@ void InputMap::action_add_event(const StringName &p_action, const Ref<InputEvent
 bool InputMap::action_has_event(const StringName &p_action, const Ref<InputEvent> &p_event) {
 
 	ERR_FAIL_COND_V(!input_map.has(p_action), false);
-	return (_find_event(input_map[p_action].inputs, p_event) != NULL);
+	return (_find_event(input_map[p_action], p_event) != NULL);
 }
 
 void InputMap::action_erase_event(const StringName &p_action, const Ref<InputEvent> &p_event) {
 
 	ERR_FAIL_COND(!input_map.has(p_action));
 
-	List<Ref<InputEvent> >::Element *E = _find_event(input_map[p_action].inputs, p_event);
+	List<Ref<InputEvent> >::Element *E = _find_event(input_map[p_action], p_event);
 	if (E)
 		input_map[p_action].inputs.erase(E);
 }
@@ -168,19 +179,33 @@ const List<Ref<InputEvent> > *InputMap::get_action_list(const StringName &p_acti
 }
 
 bool InputMap::event_is_action(const Ref<InputEvent> &p_event, const StringName &p_action) const {
+	return event_get_action_status(p_event, p_action);
+}
 
+bool InputMap::event_get_action_status(const Ref<InputEvent> &p_event, const StringName &p_action, bool *p_pressed, float *p_strength) const {
 	Map<StringName, Action>::Element *E = input_map.find(p_action);
 	if (!E) {
 		ERR_EXPLAIN("Request for nonexistent InputMap action: " + String(p_action));
 		ERR_FAIL_COND_V(!E, false);
 	}
 
-	Ref<InputEventAction> iea = p_event;
-	if (iea.is_valid()) {
-		return iea->get_action() == p_action;
+	Ref<InputEventAction> input_event_action = p_event;
+	if (input_event_action.is_valid()) {
+		return input_event_action->get_action() == p_action;
 	}
 
-	return _find_event(E->get().inputs, p_event, true) != NULL;
+	bool pressed;
+	float strength;
+	List<Ref<InputEvent> >::Element *event = _find_event(E->get(), p_event, &pressed, &strength);
+	if (event != NULL) {
+		if (p_pressed != NULL)
+			*p_pressed = pressed;
+		if (p_strength != NULL)
+			*p_strength = strength;
+		return true;
+	} else {
+		return false;
+	}
 }
 
 const Map<StringName, InputMap::Action> &InputMap::get_action_map() const {
@@ -202,16 +227,16 @@ void InputMap::load_from_globals() {
 
 		String name = pi.name.substr(pi.name.find("/") + 1, pi.name.length());
 
-		add_action(name);
-
-		Array va = ProjectSettings::get_singleton()->get(pi.name);
-
-		for (int i = 0; i < va.size(); i++) {
+		Dictionary action = ProjectSettings::get_singleton()->get(pi.name);
+		float deadzone = action.has("deadzone") ? (float)action["deadzone"] : 0.5f;
+		Array events = action["events"];
 
-			Ref<InputEvent> ie = va[i];
-			if (ie.is_null())
+		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, ie);
+			action_add_event(name, event);
 		}
 	}
 }

core/input_map.h

@@ -46,6 +46,7 @@ public:
 
 	struct Action {
 		int id;
+		float deadzone;
 		List<Ref<InputEvent> > inputs;
 	};
 
@@ -54,7 +55,7 @@ private:
 
 	mutable Map<StringName, Action> input_map;
 
-	List<Ref<InputEvent> >::Element *_find_event(List<Ref<InputEvent> > &p_list, const Ref<InputEvent> &p_event, bool p_action_test = false) const;
+	List<Ref<InputEvent> >::Element *_find_event(Action p_action, const Ref<InputEvent> &p_event, bool *p_pressed = NULL, float *p_strength = NULL) const;
 
 	Array _get_action_list(const StringName &p_action);
 	Array _get_actions();
@@ -67,15 +68,17 @@ public:
 
 	bool has_action(const StringName &p_action) const;
 	List<StringName> get_actions() const;
-	void add_action(const StringName &p_action);
+	void add_action(const StringName &p_action, float p_deadzone = 0.5);
 	void erase_action(const StringName &p_action);
 
+	void action_set_deadzone(const StringName &p_action, float p_deadzone);
 	void action_add_event(const StringName &p_action, const Ref<InputEvent> &p_event);
 	bool action_has_event(const StringName &p_action, const Ref<InputEvent> &p_event);
 	void action_erase_event(const StringName &p_action, const Ref<InputEvent> &p_event);
 
 	const List<Ref<InputEvent> > *get_action_list(const StringName &p_action);
 	bool event_is_action(const Ref<InputEvent> &p_event, const StringName &p_action) const;
+	bool event_get_action_status(const Ref<InputEvent> &p_event, const StringName &p_action, bool *p_pressed = NULL, float *p_strength = NULL) const;
 
 	const Map<StringName, Action> &get_action_map() const;
 	void load_from_globals();

core/os/input.cpp

@@ -57,6 +57,7 @@ void Input::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_action_pressed", "action"), &Input::is_action_pressed);
 	ClassDB::bind_method(D_METHOD("is_action_just_pressed", "action"), &Input::is_action_just_pressed);
 	ClassDB::bind_method(D_METHOD("is_action_just_released", "action"), &Input::is_action_just_released);
+	ClassDB::bind_method(D_METHOD("get_action_strength", "action"), &Input::get_action_strength);
 	ClassDB::bind_method(D_METHOD("add_joy_mapping", "mapping", "update_existing"), &Input::add_joy_mapping, DEFVAL(false));
 	ClassDB::bind_method(D_METHOD("remove_joy_mapping", "guid"), &Input::remove_joy_mapping);
 	ClassDB::bind_method(D_METHOD("joy_connection_changed", "device", "connected", "name", "guid"), &Input::joy_connection_changed);
@@ -119,7 +120,7 @@ void Input::get_argument_options(const StringName &p_function, int p_idx, List<S
 #ifdef TOOLS_ENABLED
 
 	String pf = p_function;
-	if (p_idx == 0 && (pf == "is_action_pressed" || pf == "action_press" || pf == "action_release" || pf == "is_action_just_pressed" || pf == "is_action_just_released")) {
+	if (p_idx == 0 && (pf == "is_action_pressed" || pf == "action_press" || pf == "action_release" || pf == "is_action_just_pressed" || pf == "is_action_just_released" || pf == "get_action_strength")) {
 
 		List<PropertyInfo> pinfo;
 		ProjectSettings::get_singleton()->get_property_list(&pinfo);

core/os/input.h

@@ -85,6 +85,7 @@ public:
 	virtual bool is_action_pressed(const StringName &p_action) const = 0;
 	virtual bool is_action_just_pressed(const StringName &p_action) const = 0;
 	virtual bool is_action_just_released(const StringName &p_action) const = 0;
+	virtual float get_action_strength(const StringName &p_action) const = 0;
 
 	virtual float get_joy_axis(int p_device, int p_axis) const = 0;
 	virtual String get_joy_name(int p_idx) = 0;

core/os/input_event.cpp

@@ -41,11 +41,6 @@ int InputEvent::get_device() const {
 	return device;
 }
 
-bool InputEvent::is_pressed() const {
-
-	return false;
-}
-
 bool InputEvent::is_action(const StringName &p_action) const {
 
 	return InputMap::get_singleton()->event_is_action(Ref<InputEvent>((InputEvent *)this), p_action);
@@ -53,11 +48,29 @@ bool InputEvent::is_action(const StringName &p_action) const {
 
 bool InputEvent::is_action_pressed(const StringName &p_action) const {
 
-	return (is_pressed() && !is_echo() && is_action(p_action));
+	bool pressed;
+	bool valid = InputMap::get_singleton()->event_get_action_status(Ref<InputEvent>((InputEvent *)this), p_action, &pressed);
+	return valid && pressed && !is_echo();
 }
+
 bool InputEvent::is_action_released(const StringName &p_action) const {
 
-	return (!is_pressed() && is_action(p_action));
+	bool pressed;
+	bool valid = InputMap::get_singleton()->event_get_action_status(Ref<InputEvent>((InputEvent *)this), p_action, &pressed);
+	return valid && !pressed;
+}
+
+float InputEvent::get_action_strength(const StringName &p_action) const {
+
+	bool pressed;
+	float strength;
+	bool valid = InputMap::get_singleton()->event_get_action_status(Ref<InputEvent>((InputEvent *)this), p_action, &pressed, &strength);
+	return valid ? strength : 0.0f;
+}
+
+bool InputEvent::is_pressed() const {
+
+	return false;
 }
 
 bool InputEvent::is_echo() const {
@@ -75,7 +88,7 @@ String InputEvent::as_text() const {
 	return String();
 }
 
-bool InputEvent::action_match(const Ref<InputEvent> &p_event) const {
+bool InputEvent::action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const {
 
 	return false;
 }
@@ -95,15 +108,16 @@ void InputEvent::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_device", "device"), &InputEvent::set_device);
 	ClassDB::bind_method(D_METHOD("get_device"), &InputEvent::get_device);
 
-	ClassDB::bind_method(D_METHOD("is_pressed"), &InputEvent::is_pressed);
 	ClassDB::bind_method(D_METHOD("is_action", "action"), &InputEvent::is_action);
 	ClassDB::bind_method(D_METHOD("is_action_pressed", "action"), &InputEvent::is_action_pressed);
 	ClassDB::bind_method(D_METHOD("is_action_released", "action"), &InputEvent::is_action_released);
+	ClassDB::bind_method(D_METHOD("get_action_strength", "action"), &InputEvent::get_action_strength);
+
+	ClassDB::bind_method(D_METHOD("is_pressed"), &InputEvent::is_pressed);
 	ClassDB::bind_method(D_METHOD("is_echo"), &InputEvent::is_echo);
 
 	ClassDB::bind_method(D_METHOD("as_text"), &InputEvent::as_text);
 
-	ClassDB::bind_method(D_METHOD("action_match", "event"), &InputEvent::action_match);
 	ClassDB::bind_method(D_METHOD("shortcut_match", "event"), &InputEvent::shortcut_match);
 
 	ClassDB::bind_method(D_METHOD("is_action_type"), &InputEvent::is_action_type);
@@ -281,7 +295,7 @@ String InputEventKey::as_text() const {
 	return kc;
 }
 
-bool InputEventKey::action_match(const Ref<InputEvent> &p_event) const {
+bool InputEventKey::action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const {
 
 	Ref<InputEventKey> key = p_event;
 	if (key.is_null())
@@ -290,7 +304,14 @@ bool InputEventKey::action_match(const Ref<InputEvent> &p_event) const {
 	uint32_t code = get_scancode_with_modifiers();
 	uint32_t event_code = key->get_scancode_with_modifiers();
 
-	return get_scancode() == key->get_scancode() && (!key->is_pressed() || (code & event_code) == code);
+	bool match = get_scancode() == key->get_scancode() && (!key->is_pressed() || (code & event_code) == code);
+	if (match) {
+		if (p_pressed != NULL)
+			*p_pressed = key->is_pressed();
+		if (p_strength != NULL)
+			*p_strength = (*p_pressed) ? 1.0f : 0.0f;
+	}
+	return match;
 }
 
 bool InputEventKey::shortcut_match(const Ref<InputEvent> &p_event) const {
@@ -446,13 +467,21 @@ Ref<InputEvent> InputEventMouseButton::xformed_by(const Transform2D &p_xform, co
 	return mb;
 }
 
-bool InputEventMouseButton::action_match(const Ref<InputEvent> &p_event) const {
+bool InputEventMouseButton::action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const {
 
 	Ref<InputEventMouseButton> mb = p_event;
 	if (mb.is_null())
 		return false;
 
-	return mb->button_index == button_index;
+	bool match = mb->button_index == button_index;
+	if (match) {
+		if (p_pressed != NULL)
+			*p_pressed = mb->is_pressed();
+		if (p_strength != NULL)
+			*p_strength = (*p_pressed) ? 1.0f : 0.0f;
+	}
+
+	return match;
 }
 
 String InputEventMouseButton::as_text() const {
@@ -610,6 +639,7 @@ void InputEventJoypadMotion::set_axis_value(float p_value) {
 
 	axis_value = p_value;
 }
+
 float InputEventJoypadMotion::get_axis_value() const {
 
 	return axis_value;
@@ -617,16 +647,23 @@ float InputEventJoypadMotion::get_axis_value() const {
 
 bool InputEventJoypadMotion::is_pressed() const {
 
-	return Math::abs(axis_value) > 0.5f;
+	return Math::abs(axis_value) >= 0.5f;
 }
 
-bool InputEventJoypadMotion::action_match(const Ref<InputEvent> &p_event) const {
+bool InputEventJoypadMotion::action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const {
 
 	Ref<InputEventJoypadMotion> jm = p_event;
 	if (jm.is_null())
 		return false;
 
-	return (axis == jm->axis && ((axis_value < 0) == (jm->axis_value < 0) || jm->axis_value == 0));
+	bool match = (axis == jm->axis && ((axis_value < 0) == (jm->axis_value < 0) || jm->axis_value == 0));
+	if (match) {
+		if (p_pressed != NULL)
+			*p_pressed = Math::abs(jm->get_axis_value() >= p_deadzone);
+		if (p_strength != NULL)
+			*p_strength = (*p_pressed) ? Math::inverse_lerp(p_deadzone, 1.0f, Math::abs(jm->get_axis_value())) : 0.0f;
+	}
+	return match;
 }
 
 String InputEventJoypadMotion::as_text() const {
@@ -681,13 +718,21 @@ float InputEventJoypadButton::get_pressure() const {
 	return pressure;
 }
 
-bool InputEventJoypadButton::action_match(const Ref<InputEvent> &p_event) const {
+bool InputEventJoypadButton::action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const {
 
 	Ref<InputEventJoypadButton> jb = p_event;
 	if (jb.is_null())
 		return false;
 
-	return button_index == jb->button_index;
+	bool match = button_index == jb->button_index;
+	if (match) {
+		if (p_pressed != NULL)
+			*p_pressed = jb->is_pressed();
+		if (p_strength != NULL)
+			*p_strength = (*p_pressed) ? 1.0f : 0.0f;
+	}
+
+	return match;
 }
 
 String InputEventJoypadButton::as_text() const {

core/os/input_event.h

@@ -154,16 +154,21 @@ public:
 	void set_device(int p_device);
 	int get_device() const;
 
+	bool is_action(const StringName &p_action) const;
+	bool is_action_pressed(const StringName &p_action) const;
+	bool is_action_released(const StringName &p_action) const;
+	float get_action_strength(const StringName &p_action) const;
+
+	// To be removed someday, since they do not make sense for all events
 	virtual bool is_pressed() const;
-	virtual bool is_action(const StringName &p_action) const;
-	virtual bool is_action_pressed(const StringName &p_action) const;
-	virtual bool is_action_released(const StringName &p_action) const;
 	virtual bool is_echo() const;
+	// ...-.
+
 	virtual String as_text() const;
 
 	virtual Ref<InputEvent> xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs = Vector2()) const;
 
-	virtual bool action_match(const Ref<InputEvent> &p_event) const;
+	virtual bool action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const;
 	virtual bool shortcut_match(const Ref<InputEvent> &p_event) const;
 	virtual bool is_action_type() const;
 
@@ -244,7 +249,7 @@ public:
 
 	uint32_t get_scancode_with_modifiers() const;
 
-	virtual bool action_match(const Ref<InputEvent> &p_event) const;
+	virtual bool action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const;
 	virtual bool shortcut_match(const Ref<InputEvent> &p_event) const;
 
 	virtual bool is_action_type() const { return true; }
@@ -305,7 +310,7 @@ public:
 	bool is_doubleclick() const;
 
 	virtual Ref<InputEvent> xformed_by(const Transform2D &p_xform, const Vector2 &p_local_ofs = Vector2()) const;
-	virtual bool action_match(const Ref<InputEvent> &p_event) const;
+	virtual bool action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const;
 
 	virtual bool is_action_type() const { return true; }
 	virtual String as_text() const;
@@ -352,7 +357,8 @@ public:
 	float get_axis_value() const;
 
 	virtual bool is_pressed() const;
-	virtual bool action_match(const Ref<InputEvent> &p_event) const;
+
+	virtual bool action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const;
 
 	virtual bool is_action_type() const { return true; }
 	virtual String as_text() const;
@@ -379,7 +385,7 @@ public:
 	void set_pressure(float p_pressure);
 	float get_pressure() const;
 
-	virtual bool action_match(const Ref<InputEvent> &p_event) const;
+	virtual bool action_match(const Ref<InputEvent> &p_event, bool *p_pressed, float *p_strength, float p_deadzone) const;
 
 	virtual bool is_action_type() const { return true; }
 	virtual String as_text() const;

core/project_settings.cpp

@@ -42,7 +42,7 @@
 #include "variant_parser.h"
 #include <zlib.h>
 
-#define FORMAT_VERSION 3
+#define FORMAT_VERSION 4
 
 ProjectSettings *ProjectSettings::singleton = NULL;
 
@@ -262,6 +262,23 @@ bool ProjectSettings::_load_resource_pack(const String &p_pack) {
 	return true;
 }
 
+void ProjectSettings::_convert_to_last_version() {
+	if (!has_setting("config_version") || (int)get_setting("config_version") <= 3) {
+
+		// Converts the actions from array to dictionary (array of events to dictionary with deadzone + events)
+		for (Map<StringName, ProjectSettings::VariantContainer>::Element *E = props.front(); E; E = E->next()) {
+			Variant value = E->get().variant;
+			if (String(E->key()).begins_with("input/") && value.get_type() == Variant::ARRAY) {
+				Array array = value;
+				Dictionary action;
+				action["deadzone"] = Variant(0.5f);
+				action["events"] = array;
+				E->get().variant = action;
+			}
+		}
+	}
+}
+
 Error ProjectSettings::setup(const String &p_path, const String &p_main_pack, bool p_upwards) {
 
 	//If looking for files in network, just use network!
@@ -390,6 +407,8 @@ Error ProjectSettings::setup(const String &p_path, const String &p_main_pack, bo
 	if (resource_path.length() && resource_path[resource_path.length() - 1] == '/')
 		resource_path = resource_path.substr(0, resource_path.length() - 1); // chop end
 
+	_convert_to_last_version();
+
 	return OK;
 }
 

core/project_settings.h

@@ -102,6 +102,8 @@ protected:
 
 	Error _save_custom_bnd(const String &p_file);
 
+	void _convert_to_last_version();
+
 	bool _load_resource_pack(const String &p_pack);
 
 	void _add_property_info_bind(const Dictionary &p_info);

editor/project_settings_editor.cpp

@@ -178,15 +178,15 @@ void ProjectSettingsEditor::_action_edited() {
 	}
 
 	int order = ProjectSettings::get_singleton()->get_order(add_at);
-	Array va = ProjectSettings::get_singleton()->get(add_at);
+	Dictionary action = ProjectSettings::get_singleton()->get(add_at);
 
 	setting = true;
 	undo_redo->create_action(TTR("Rename Input Action Event"));
 	undo_redo->add_do_method(ProjectSettings::get_singleton(), "clear", add_at);
-	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", action_prop, va);
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", action_prop, action);
 	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set_order", action_prop, order);
 	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "clear", action_prop);
-	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", add_at, va);
+	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", add_at, action);
 	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set_order", add_at, order);
 	undo_redo->add_do_method(this, "_update_actions");
 	undo_redo->add_undo_method(this, "_update_actions");
@@ -203,8 +203,9 @@ void ProjectSettingsEditor::_device_input_add() {
 	Ref<InputEvent> ie;
 	String name = add_at;
 	int idx = edit_idx;
-	Array old_val = ProjectSettings::get_singleton()->get(name);
-	Array arr = old_val.duplicate();
+	Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+	Dictionary action = old_val.duplicate();
+	Array events = action["events"];
 
 	switch (add_type) {
 
@@ -215,9 +216,9 @@ void ProjectSettingsEditor::_device_input_add() {
 			mb->set_button_index(device_index->get_selected() + 1);
 			mb->set_device(_get_current_device());
 
-			for (int i = 0; i < arr.size(); i++) {
+			for (int i = 0; i < events.size(); i++) {
 
-				Ref<InputEventMouseButton> aie = arr[i];
+				Ref<InputEventMouseButton> aie = events[i];
 				if (aie.is_null())
 					continue;
 				if (aie->get_device() == mb->get_device() && aie->get_button_index() == mb->get_button_index()) {
@@ -233,20 +234,26 @@ void ProjectSettingsEditor::_device_input_add() {
 			Ref<InputEventJoypadMotion> jm;
 			jm.instance();
 			jm->set_axis(device_index->get_selected() >> 1);
-			jm->set_axis_value(device_index->get_selected() & 1 ? 1 : -1);
 			jm->set_device(_get_current_device());
 
-			for (int i = 0; i < arr.size(); i++) {
+			bool should_update_event = true;
+			Variant deadzone = device_special_value->get_value();
+			for (int i = 0; i < events.size(); i++) {
 
-				Ref<InputEventJoypadMotion> aie = arr[i];
+				Ref<InputEventJoypadMotion> aie = events[i];
 				if (aie.is_null())
 					continue;
-				if (aie->get_device() == jm->get_device() && aie->get_axis() == jm->get_axis() && aie->get_axis_value() == jm->get_axis_value()) {
-					return;
+				if (aie->get_device() == jm->get_device() && aie->get_axis() == jm->get_axis()) {
+					should_update_event = false;
+					break;
 				}
 			}
 
+			if (!should_update_event && deadzone == action["deadzone"])
+				return;
+
 			ie = jm;
+			action["deadzone"] = deadzone;
 
 		} break;
 		case INPUT_JOY_BUTTON: {
@@ -257,9 +264,9 @@ void ProjectSettingsEditor::_device_input_add() {
 			jb->set_button_index(device_index->get_selected());
 			jb->set_device(_get_current_device());
 
-			for (int i = 0; i < arr.size(); i++) {
+			for (int i = 0; i < events.size(); i++) {
 
-				Ref<InputEventJoypadButton> aie = arr[i];
+				Ref<InputEventJoypadButton> aie = events[i];
 				if (aie.is_null())
 					continue;
 				if (aie->get_device() == jb->get_device() && aie->get_button_index() == jb->get_button_index()) {
@@ -272,14 +279,15 @@ void ProjectSettingsEditor::_device_input_add() {
 		default: {}
 	}
 
-	if (idx < 0 || idx >= arr.size()) {
-		arr.push_back(ie);
+	if (idx < 0 || idx >= events.size()) {
+		events.push_back(ie);
 	} else {
-		arr[idx] = ie;
+		events[idx] = ie;
 	}
+	action["events"] = events;
 
 	undo_redo->create_action(TTR("Add Input Action Event"));
-	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, arr);
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
 	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
 	undo_redo->add_do_method(this, "_update_actions");
 	undo_redo->add_undo_method(this, "_update_actions");
@@ -320,12 +328,13 @@ void ProjectSettingsEditor::_press_a_key_confirm() {
 	String name = add_at;
 	int idx = edit_idx;
 
-	Array old_val = ProjectSettings::get_singleton()->get(name);
-	Array arr = old_val.duplicate();
+	Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+	Dictionary action = old_val.duplicate();
+	Array events = action["events"];
 
-	for (int i = 0; i < arr.size(); i++) {
+	for (int i = 0; i < events.size(); i++) {
 
-		Ref<InputEventKey> aie = arr[i];
+		Ref<InputEventKey> aie = events[i];
 		if (aie.is_null())
 			continue;
 		if (aie->get_scancode_with_modifiers() == ie->get_scancode_with_modifiers()) {
@@ -333,14 +342,15 @@ void ProjectSettingsEditor::_press_a_key_confirm() {
 		}
 	}
 
-	if (idx < 0 || idx >= arr.size()) {
-		arr.push_back(ie);
+	if (idx < 0 || idx >= events.size()) {
+		events.push_back(ie);
 	} else {
-		arr[idx] = ie;
+		events[idx] = ie;
 	}
+	action["events"] = events;
 
 	undo_redo->create_action(TTR("Add Input Action Event"));
-	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, arr);
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
 	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
 	undo_redo->add_do_method(this, "_update_actions");
 	undo_redo->add_undo_method(this, "_update_actions");
@@ -418,6 +428,9 @@ void ProjectSettingsEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_even
 			last_wait_for_key = Ref<InputEvent>();
 			press_a_key->popup_centered(Size2(250, 80) * EDSCALE);
 			press_a_key->grab_focus();
+
+			device_special_value_label->hide();
+			device_special_value->hide();
 		} break;
 		case INPUT_MOUSE_BUTTON: {
 
@@ -443,6 +456,9 @@ void ProjectSettingsEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_even
 				_set_current_device(0);
 				device_input->get_ok()->set_text(TTR("Add"));
 			}
+
+			device_special_value_label->hide();
+			device_special_value->hide();
 		} break;
 		case INPUT_JOY_MOTION: {
 
@@ -464,6 +480,15 @@ void ProjectSettingsEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_even
 				_set_current_device(0);
 				device_input->get_ok()->set_text(TTR("Add"));
 			}
+
+			device_special_value_label->set_text(TTR("Deadzone (global to the action):"));
+			device_special_value_label->show();
+			device_special_value->set_min(0.0f);
+			device_special_value->set_max(1.0f);
+			device_special_value->set_step(0.01f);
+			Dictionary action = ProjectSettings::get_singleton()->get(add_at);
+			device_special_value->set_value(action.has("deadzone") ? action["deadzone"] : Variant(0.5f));
+			device_special_value->show();
 		} break;
 		case INPUT_JOY_BUTTON: {
 
@@ -486,6 +511,8 @@ void ProjectSettingsEditor::_add_item(int p_item, Ref<InputEvent> p_exiting_even
 				device_input->get_ok()->set_text(TTR("Add"));
 			}
 
+			device_special_value_label->hide();
+			device_special_value->hide();
 		} break;
 		default: {}
 	}
@@ -522,18 +549,17 @@ void ProjectSettingsEditor::_action_activated() {
 
 	String name = "input/" + ti->get_parent()->get_text(0);
 	int idx = ti->get_metadata(0);
-	Array va = ProjectSettings::get_singleton()->get(name);
-
-	ERR_FAIL_INDEX(idx, va.size());
-
-	Ref<InputEvent> ie = va[idx];
+	Dictionary action = ProjectSettings::get_singleton()->get(name);
+	Array events = action["events"];
 
-	if (ie.is_null())
+	ERR_FAIL_INDEX(idx, events.size());
+	Ref<InputEvent> event = events[idx];
+	if (event.is_null())
 		return;
 
 	add_at = name;
 	edit_idx = idx;
-	_edit_item(ie);
+	_edit_item(event);
 }
 
 void ProjectSettingsEditor::_action_button_pressed(Object *p_obj, int p_column, int p_id) {
@@ -543,6 +569,7 @@ void ProjectSettingsEditor::_action_button_pressed(Object *p_obj, int p_column,
 	ERR_FAIL_COND(!ti);
 
 	if (p_id == 1) {
+		// Add action event
 		Point2 ofs = input_editor->get_global_position();
 		Rect2 ir = input_editor->get_item_rect(ti);
 		ir.position.y -= input_editor->get_scroll().y;
@@ -554,14 +581,12 @@ void ProjectSettingsEditor::_action_button_pressed(Object *p_obj, int p_column,
 		edit_idx = -1;
 
 	} else if (p_id == 2) {
-		//remove
+		// Remove
 
 		if (ti->get_parent() == input_editor->get_root()) {
-
-			//remove main thing
-
+			// Remove action
 			String name = "input/" + ti->get_text(0);
-			Variant old_val = ProjectSettings::get_singleton()->get(name);
+			Dictionary old_val = ProjectSettings::get_singleton()->get(name);
 			int order = ProjectSettings::get_singleton()->get_order(name);
 
 			undo_redo->create_action(TTR("Erase Input Action"));
@@ -575,24 +600,19 @@ void ProjectSettingsEditor::_action_button_pressed(Object *p_obj, int p_column,
 			undo_redo->commit_action();
 
 		} else {
-			//remove action
+			// Remove action event
 			String name = "input/" + ti->get_parent()->get_text(0);
-			Variant old_val = ProjectSettings::get_singleton()->get(name);
+			Dictionary old_val = ProjectSettings::get_singleton()->get(name);
+			Dictionary action = old_val.duplicate();
 			int idx = ti->get_metadata(0);
 
-			Array va = old_val;
-
-			ERR_FAIL_INDEX(idx, va.size());
-
-			for (int i = idx; i < va.size() - 1; i++) {
-
-				va[i] = va[i + 1];
-			}
-
-			va.resize(va.size() - 1);
+			Array events = action["events"];
+			ERR_FAIL_INDEX(idx, events.size());
+			events.remove(idx);
+			action["events"] = events;
 
 			undo_redo->create_action(TTR("Erase Input Action Event"));
-			undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, va);
+			undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
 			undo_redo->add_undo_method(ProjectSettings::get_singleton(), "set", name, old_val);
 			undo_redo->add_do_method(this, "_update_actions");
 			undo_redo->add_undo_method(this, "_update_actions");
@@ -601,30 +621,31 @@ void ProjectSettingsEditor::_action_button_pressed(Object *p_obj, int p_column,
 			undo_redo->commit_action();
 		}
 	} else if (p_id == 3) {
-		//edit
+		// Edit
 
 		if (ti->get_parent() == input_editor->get_root()) {
-
+			// Edit action name
 			ti->set_as_cursor(0);
 			input_editor->edit_selected();
 
 		} else {
-			//edit action
+			// Edit action event
 			String name = "input/" + ti->get_parent()->get_text(0);
 			int idx = ti->get_metadata(0);
-			Array va = ProjectSettings::get_singleton()->get(name);
+			Dictionary action = ProjectSettings::get_singleton()->get(name);
 
-			ERR_FAIL_INDEX(idx, va.size());
+			Array events = action["events"];
+			ERR_FAIL_INDEX(idx, events.size());
 
-			Ref<InputEvent> ie = va[idx];
+			Ref<InputEvent> event = events[idx];
 
-			if (ie.is_null())
+			if (event.is_null())
 				return;
 
 			ti->set_as_cursor(0);
 			add_at = name;
 			edit_idx = idx;
-			_edit_item(ie);
+			_edit_item(event);
 		}
 	}
 }
@@ -660,17 +681,18 @@ void ProjectSettingsEditor::_update_actions() {
 		}
 		item->set_custom_bg_color(0, get_color("prop_subsection", "Editor"));
 
-		Array actions = ProjectSettings::get_singleton()->get(pi.name);
+		Dictionary action = ProjectSettings::get_singleton()->get(pi.name);
+		Array events = action["events"];
 
-		for (int i = 0; i < actions.size(); i++) {
+		for (int i = 0; i < events.size(); i++) {
 
-			Ref<InputEvent> ie = actions[i];
-			if (ie.is_null())
+			Ref<InputEvent> event = events[i];
+			if (event.is_null())
 				continue;
 
 			TreeItem *action = input_editor->create_item(item);
 
-			Ref<InputEventKey> k = ie;
+			Ref<InputEventKey> k = event;
 			if (k.is_valid()) {
 
 				String str = keycode_get_string(k->get_scancode()).capitalize();
@@ -687,7 +709,7 @@ void ProjectSettingsEditor::_update_actions() {
 				action->set_icon(0, get_icon("Keyboard", "EditorIcons"));
 			}
 
-			Ref<InputEventJoypadButton> jb = ie;
+			Ref<InputEventJoypadButton> jb = event;
 
 			if (jb.is_valid()) {
 
@@ -701,7 +723,7 @@ void ProjectSettingsEditor::_update_actions() {
 				action->set_icon(0, get_icon("JoyButton", "EditorIcons"));
 			}
 
-			Ref<InputEventMouseButton> mb = ie;
+			Ref<InputEventMouseButton> mb = event;
 
 			if (mb.is_valid()) {
 				String str = _get_device_string(mb->get_device()) + ", ";
@@ -718,7 +740,7 @@ void ProjectSettingsEditor::_update_actions() {
 				action->set_icon(0, get_icon("Mouse", "EditorIcons"));
 			}
 
-			Ref<InputEventJoypadMotion> jm = ie;
+			Ref<InputEventJoypadMotion> jm = event;
 
 			if (jm.is_valid()) {
 
@@ -732,7 +754,7 @@ void ProjectSettingsEditor::_update_actions() {
 			action->add_button(0, get_icon("Edit", "EditorIcons"), 3, false, TTR("Edit"));
 			action->add_button(0, get_icon("Remove", "EditorIcons"), 2, false, TTR("Remove"));
 			action->set_metadata(0, i);
-			action->set_meta("__input", ie);
+			action->set_meta("__input", event);
 		}
 	}
 
@@ -892,10 +914,12 @@ void ProjectSettingsEditor::_action_adds(String) {
 
 void ProjectSettingsEditor::_action_add() {
 
-	Array va;
+	Dictionary action;
+	action["events"] = Array();
+	action["deadzone"] = 0.5f;
 	String name = "input/" + action_name->get_text();
 	undo_redo->create_action(TTR("Add Input Action"));
-	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, va);
+	undo_redo->add_do_method(ProjectSettings::get_singleton(), "set", name, action);
 	undo_redo->add_undo_method(ProjectSettings::get_singleton(), "clear", name);
 	undo_redo->add_do_method(this, "_update_actions");
 	undo_redo->add_undo_method(this, "_update_actions");
@@ -1814,6 +1838,14 @@ ProjectSettingsEditor::ProjectSettingsEditor(EditorData *p_data) {
 	device_index = memnew(OptionButton);
 	vbc_right->add_child(device_index);
 
+	l = memnew(Label);
+	l->set_text(TTR("Special value:"));
+	vbc_right->add_child(l);
+	device_special_value_label = l;
+
+	device_special_value = memnew(SpinBox);
+	vbc_right->add_child(device_special_value);
+
 	setting = false;
 
 	//translations

editor/project_settings_editor.h

@@ -83,6 +83,8 @@ class ProjectSettingsEditor : public AcceptDialog {
 	OptionButton *device_id;
 	OptionButton *device_index;
 	Label *device_index_label;
+	SpinBox *device_special_value;
+	Label *device_special_value_label;
 	MenuButton *popup_copy_to_feature;
 
 	LineEdit *action_name;

main/input_default.cpp

@@ -127,6 +127,14 @@ bool InputDefault::is_action_just_released(const StringName &p_action) const {
 	}
 }
 
+float InputDefault::get_action_strength(const StringName &p_action) const {
+	const Map<StringName, Action>::Element *E = action_state.find(p_action);
+	if (!E)
+		return 0.0f;
+
+	return E->get().strength;
+}
+
 float InputDefault::get_joy_axis(int p_device, int p_axis) const {
 
 	_THREAD_SAFE_METHOD_
@@ -330,16 +338,18 @@ void InputDefault::parse_input_event(const Ref<InputEvent> &p_event) {
 		}
 	}
 
-	if (!p_event->is_echo()) {
-		for (const Map<StringName, InputMap::Action>::Element *E = InputMap::get_singleton()->get_action_map().front(); E; E = E->next()) {
+	for (const Map<StringName, InputMap::Action>::Element *E = InputMap::get_singleton()->get_action_map().front(); E; E = E->next()) {
+		if (InputMap::get_singleton()->event_is_action(p_event, E->key())) {
 
-			if (InputMap::get_singleton()->event_is_action(p_event, E->key()) && is_action_pressed(E->key()) != p_event->is_pressed()) {
+			// Save the action's state
+			if (!p_event->is_echo() && is_action_pressed(E->key()) != p_event->is_action_pressed(E->key())) {
 				Action action;
 				action.physics_frame = Engine::get_singleton()->get_physics_frames();
 				action.idle_frame = Engine::get_singleton()->get_idle_frames();
-				action.pressed = p_event->is_pressed();
+				action.pressed = p_event->is_action_pressed(E->key());
 				action_state[E->key()] = action;
 			}
+			action_state[E->key()].strength = p_event->get_action_strength(E->key());
 		}
 	}
 

main/input_default.h

@@ -55,6 +55,7 @@ class InputDefault : public Input {
 		uint64_t physics_frame;
 		uint64_t idle_frame;
 		bool pressed;
+		float strength;
 	};
 
 	Map<StringName, Action> action_state;
@@ -182,6 +183,7 @@ public:
 	virtual bool is_action_pressed(const StringName &p_action) const;
 	virtual bool is_action_just_pressed(const StringName &p_action) const;
 	virtual bool is_action_just_released(const StringName &p_action) const;
+	virtual float get_action_strength(const StringName &p_action) const;
 
 	virtual float get_joy_axis(int p_device, int p_axis) const;
 	String get_joy_name(int p_idx);