4 files changed, 22 insertions, 4 deletions
diff --git a/core/input/input.cpp b/core/input/input.cpp
index b3a68bb98c..da0c6cb62a 100644
--- a/core/input/input.cpp
+++ b/core/input/input.cpp
@@ -325,6 +325,7 @@ float Input::get_action_strength(const StringName &p_action, bool p_exact) const
 }
 
 float Input::get_action_raw_strength(const StringName &p_action, bool p_exact) const {
+	ERR_FAIL_COND_V_MSG(!InputMap::get_singleton()->has_action(p_action), 0.0, InputMap::get_singleton()->suggest_actions(p_action));
 	HashMap<StringName, Action>::ConstIterator E = action_state.find(p_action);
 	if (!E) {
 		return 0.0f;
diff --git a/core/input/input.h b/core/input/input.h
index f02f2abae5..3ad8c91ddf 100644
--- a/core/input/input.h
+++ b/core/input/input.h
@@ -110,7 +110,7 @@ private:
 	bool emulate_touch_from_mouse = false;
 	bool emulate_mouse_from_touch = false;
 	bool use_input_buffering = false;
-	bool use_accumulated_input = false;
+	bool use_accumulated_input = true;
 
 	int mouse_from_touch_index = -1;
 
diff --git a/core/input/input_event.cpp b/core/input/input_event.cpp
index 32e025417e..3c104c2c86 100644
--- a/core/input/input_event.cpp
+++ b/core/input/input_event.cpp
@@ -741,6 +741,14 @@ float InputEventMouseMotion::get_pressure() const {
 	return pressure;
 }
 
+void InputEventMouseMotion::set_pen_inverted(bool p_inverted) {
+	pen_inverted = p_inverted;
+}
+
+bool InputEventMouseMotion::get_pen_inverted() const {
+	return pen_inverted;
+}
+
 void InputEventMouseMotion::set_relative(const Vector2 &p_relative) {
 	relative = p_relative;
 }
@@ -768,6 +776,7 @@ Ref<InputEvent> InputEventMouseMotion::xformed_by(const Transform2D &p_xform, co
 
 	mm->set_position(p_xform.xform(get_position() + p_local_ofs));
 	mm->set_pressure(get_pressure());
+	mm->set_pen_inverted(get_pen_inverted());
 	mm->set_tilt(get_tilt());
 	mm->set_global_position(get_global_position());
 
@@ -805,9 +814,9 @@ String InputEventMouseMotion::to_string() {
 			break;
 	}
 
-	// Work around the fact vformat can only take 5 substitutions but 6 need to be passed.
-	String mask_and_position = vformat("button_mask=%s, position=(%s)", button_mask_string, String(get_position()));
-	return vformat("InputEventMouseMotion: %s, relative=(%s), velocity=(%s), pressure=%.2f, tilt=(%s)", mask_and_position, String(get_relative()), String(get_velocity()), get_pressure(), String(get_tilt()));
+	// Work around the fact vformat can only take 5 substitutions but 7 need to be passed.
+	String mask_and_position_and_relative = vformat("button_mask=%s, position=(%s), relative=(%s)", button_mask_string, String(get_position()), String(get_relative()));
+	return vformat("InputEventMouseMotion: %s, velocity=(%s), pressure=%.2f, tilt=(%s), pen_inverted=(%d)", mask_and_position_and_relative, String(get_velocity()), get_pressure(), String(get_tilt()), get_pen_inverted());
 }
 
 bool InputEventMouseMotion::accumulate(const Ref<InputEvent> &p_event) {
@@ -859,6 +868,9 @@ void InputEventMouseMotion::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_pressure", "pressure"), &InputEventMouseMotion::set_pressure);
 	ClassDB::bind_method(D_METHOD("get_pressure"), &InputEventMouseMotion::get_pressure);
 
+	ClassDB::bind_method(D_METHOD("set_pen_inverted", "pen_inverted"), &InputEventMouseMotion::set_pen_inverted);
+	ClassDB::bind_method(D_METHOD("get_pen_inverted"), &InputEventMouseMotion::get_pen_inverted);
+
 	ClassDB::bind_method(D_METHOD("set_relative", "relative"), &InputEventMouseMotion::set_relative);
 	ClassDB::bind_method(D_METHOD("get_relative"), &InputEventMouseMotion::get_relative);
 
@@ -867,6 +879,7 @@ void InputEventMouseMotion::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "tilt"), "set_tilt", "get_tilt");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "pressure"), "set_pressure", "get_pressure");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "pen_inverted"), "set_pen_inverted", "get_pen_inverted");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "relative", PROPERTY_HINT_NONE, "suffix:px"), "set_relative", "get_relative");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "velocity", PROPERTY_HINT_NONE, "suffix:px/s"), "set_velocity", "get_velocity");
 }
diff --git a/core/input/input_event.h b/core/input/input_event.h
index 114db46623..59a2df497c 100644
--- a/core/input/input_event.h
+++ b/core/input/input_event.h
@@ -272,6 +272,7 @@ class InputEventMouseMotion : public InputEventMouse {
 	float pressure = 0;
 	Vector2 relative;
 	Vector2 velocity;
+	bool pen_inverted = false;
 
 protected:
 	static void _bind_methods();
@@ -283,6 +284,9 @@ public:
 	void set_pressure(float p_pressure);
 	float get_pressure() const;
 
+	void set_pen_inverted(bool p_inverted);
+	bool get_pen_inverted() const;
+
 	void set_relative(const Vector2 &p_relative);
 	Vector2 get_relative() const;