Ability to pause particles, closes #3675

scene/2d/particles_2d.cpp

@@ -300,6 +300,15 @@ void Particles2D::_notification(int p_what) {
 #endif
 	}
 
+	if (p_what == NOTIFICATION_PAUSED || p_what == NOTIFICATION_UNPAUSED) {
+		if (can_process()) {
+			VS::get_singleton()->particles_set_speed_scale(particles, speed_scale);
+		} else {
+
+			VS::get_singleton()->particles_set_speed_scale(particles, 0);
+		}
+	}
+
 	if (p_what == NOTIFICATION_TRANSFORM_CHANGED) {
 		_update_particle_emission_transform();
 	}

scene/3d/particles.cpp

@@ -266,6 +266,18 @@ void Particles::_validate_property(PropertyInfo &property) const {
 	}
 }
 
+void Particles::_notification(int p_what) {
+
+	if (p_what == NOTIFICATION_PAUSED || p_what == NOTIFICATION_UNPAUSED) {
+		if (can_process()) {
+			VS::get_singleton()->particles_set_speed_scale(particles, speed_scale);
+		} else {
+
+			VS::get_singleton()->particles_set_speed_scale(particles, 0);
+		}
+	}
+}
+
 void Particles::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("set_emitting", "emitting"), &Particles::set_emitting);

scene/3d/particles.h

@@ -78,6 +78,7 @@ private:
 
 protected:
 	static void _bind_methods();
+	void _notification(int p_what);
 	virtual void _validate_property(PropertyInfo &property) const;
 
 public: