Several performance improvements, mainly in loading and instancing scenes and resources.

A general speedup should be apparent, with even more peformance increase when compiling optimized.

WARNING: Tested and it seems to work, but if something breaks, please report.

31 files changed, 221 insertions, 177 deletions

diff --git a/scene/2d/animated_sprite.cpp b/scene/2d/animated_sprite.cpp
index e350a34013..0b00ac9560 100644
--- a/scene/2d/animated_sprite.cpp
+++ b/scene/2d/animated_sprite.cpp
@@ -330,11 +330,11 @@ void AnimatedSprite::_bind_methods() {
 
 	ADD_PROPERTYNZ( PropertyInfo( Variant::OBJECT, "frames",PROPERTY_HINT_RESOURCE_TYPE,"SpriteFrames"), _SCS("set_sprite_frames"),_SCS("get_sprite_frames"));
 	ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "frame",PROPERTY_HINT_SPRITE_FRAME), _SCS("set_frame"),_SCS("get_frame"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
 	ADD_PROPERTYNZ( PropertyInfo( Variant::VECTOR2, "offset"), _SCS("set_offset"),_SCS("get_offset"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "flip_h"), _SCS("set_flip_h"),_SCS("is_flipped_h"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "flip_v"), _SCS("set_flip_v"),_SCS("is_flipped_v"));
-	ADD_PROPERTY( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "flip_h"), _SCS("set_flip_h"),_SCS("is_flipped_h"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "flip_v"), _SCS("set_flip_v"),_SCS("is_flipped_v"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
 
 }
 
diff --git a/scene/2d/area_2d.cpp b/scene/2d/area_2d.cpp
index f9e79e25bc..c44b46adbf 100644
--- a/scene/2d/area_2d.cpp
+++ b/scene/2d/area_2d.cpp
@@ -428,8 +428,9 @@ void Area2D::set_enable_monitoring(bool p_enable) {
 
 	if (monitoring) {
 
-		Physics2DServer::get_singleton()->area_set_monitor_callback(get_rid(),this,"_body_inout");
-		Physics2DServer::get_singleton()->area_set_area_monitor_callback(get_rid(),this,"_area_inout");
+		Physics2DServer::get_singleton()->area_set_monitor_callback(get_rid(),this,SceneStringNames::get_singleton()->_body_inout);
+		Physics2DServer::get_singleton()->area_set_area_monitor_callback(get_rid(),this,SceneStringNames::get_singleton()->_area_inout);
+
 	} else {
 		Physics2DServer::get_singleton()->area_set_monitor_callback(get_rid(),NULL,StringName());
 		Physics2DServer::get_singleton()->area_set_area_monitor_callback(get_rid(),NULL,StringName());
@@ -652,17 +653,17 @@ void Area2D::_bind_methods() {
 
 
 	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"space_override",PROPERTY_HINT_ENUM,"Disabled,Combine,Replace"),_SCS("set_space_override_mode"),_SCS("get_space_override_mode"));
-	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"gravity_point"),_SCS("set_gravity_is_point"),_SCS("is_gravity_a_point"));
-	ADD_PROPERTY( PropertyInfo(Variant::REAL,"gravity_distance_scale", PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_gravity_distance_scale"),_SCS("get_gravity_distance_scale"));
+	ADD_PROPERTYNZ( PropertyInfo(Variant::BOOL,"gravity_point"),_SCS("set_gravity_is_point"),_SCS("is_gravity_a_point"));
+	ADD_PROPERTYNZ( PropertyInfo(Variant::REAL,"gravity_distance_scale", PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_gravity_distance_scale"),_SCS("get_gravity_distance_scale"));
 	ADD_PROPERTY( PropertyInfo(Variant::VECTOR2,"gravity_vec"),_SCS("set_gravity_vector"),_SCS("get_gravity_vector"));
 	ADD_PROPERTY( PropertyInfo(Variant::REAL,"gravity",PROPERTY_HINT_RANGE,"-1024,1024,0.01"),_SCS("set_gravity"),_SCS("get_gravity"));
 	ADD_PROPERTY( PropertyInfo(Variant::REAL,"linear_damp",PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_linear_damp"),_SCS("get_linear_damp"));
 	ADD_PROPERTY( PropertyInfo(Variant::REAL,"angular_damp",PROPERTY_HINT_RANGE,"0,1024,0.001"),_SCS("set_angular_damp"),_SCS("get_angular_damp"));
 	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"priority",PROPERTY_HINT_RANGE,"0,128,1"),_SCS("set_priority"),_SCS("get_priority"));
-	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"monitoring"),_SCS("set_enable_monitoring"),_SCS("is_monitoring_enabled"));
-	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"monitorable"),_SCS("set_monitorable"),_SCS("is_monitorable"));
-	ADD_PROPERTY( PropertyInfo(Variant::INT,"collision/layers",PROPERTY_HINT_ALL_FLAGS),_SCS("set_layer_mask"),_SCS("get_layer_mask"));
-	ADD_PROPERTY( PropertyInfo(Variant::INT,"collision/mask",PROPERTY_HINT_ALL_FLAGS),_SCS("set_collision_mask"),_SCS("get_collision_mask"));
+	ADD_PROPERTYNO( PropertyInfo(Variant::BOOL,"monitoring"),_SCS("set_enable_monitoring"),_SCS("is_monitoring_enabled"));
+	ADD_PROPERTYNO( PropertyInfo(Variant::BOOL,"monitorable"),_SCS("set_monitorable"),_SCS("is_monitorable"));
+	ADD_PROPERTYNO( PropertyInfo(Variant::INT,"collision/layers",PROPERTY_HINT_ALL_FLAGS),_SCS("set_layer_mask"),_SCS("get_layer_mask"));
+	ADD_PROPERTYNO( PropertyInfo(Variant::INT,"collision/mask",PROPERTY_HINT_ALL_FLAGS),_SCS("set_collision_mask"),_SCS("get_collision_mask"));
 
 }
 
diff --git a/scene/2d/canvas_item.cpp b/scene/2d/canvas_item.cpp
index 6a1ea0728d..789c6bdbe4 100644
--- a/scene/2d/canvas_item.cpp
+++ b/scene/2d/canvas_item.cpp
@@ -1103,14 +1103,14 @@ void CanvasItem::_bind_methods() {
 
 	BIND_VMETHOD(MethodInfo("_draw"));
 
-	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"),_SCS("_is_visible_") );
-	ADD_PROPERTY( PropertyInfo(Variant::REAL,"visibility/opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_opacity"),_SCS("get_opacity") );
-	ADD_PROPERTY( PropertyInfo(Variant::REAL,"visibility/self_opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_self_opacity"),_SCS("get_self_opacity") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"),_SCS("_is_visible_") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::REAL,"visibility/opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_opacity"),_SCS("get_opacity") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::REAL,"visibility/self_opacity",PROPERTY_HINT_RANGE, "0,1,0.01"), _SCS("set_self_opacity"),_SCS("get_self_opacity") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::BOOL,"visibility/behind_parent"), _SCS("set_draw_behind_parent"),_SCS("is_draw_behind_parent_enabled") );
 	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"visibility/on_top",PROPERTY_HINT_NONE,"",0), _SCS("_set_on_top"),_SCS("_is_on_top") ); //compatibility
 
 	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"visibility/blend_mode",PROPERTY_HINT_ENUM, "Mix,Add,Sub,Mul,PMAlpha"), _SCS("set_blend_mode"),_SCS("get_blend_mode") );
-	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"visibility/light_mask",PROPERTY_HINT_ALL_FLAGS), _SCS("set_light_mask"),_SCS("get_light_mask") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::INT,"visibility/light_mask",PROPERTY_HINT_ALL_FLAGS), _SCS("set_light_mask"),_SCS("get_light_mask") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::OBJECT,"material/material",PROPERTY_HINT_RESOURCE_TYPE, "CanvasItemMaterial"), _SCS("set_material"),_SCS("get_material") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::BOOL,"material/use_parent"), _SCS("set_use_parent_material"),_SCS("get_use_parent_material") );
 	//exporting these two things doesn't really make much sense i think
diff --git a/scene/2d/collision_object_2d.cpp b/scene/2d/collision_object_2d.cpp
index f577b81598..8b8caf13d3 100644
--- a/scene/2d/collision_object_2d.cpp
+++ b/scene/2d/collision_object_2d.cpp
@@ -115,19 +115,16 @@ void CollisionObject2D::_update_shapes() {
 bool CollisionObject2D::_set(const StringName& p_name, const Variant& p_value) {
 	String name=p_name;
 
-	if (name=="shape_count") {
+	if (name.begins_with("shapes/")) {
 
-		shapes.resize(p_value);
-		_update_shapes();
-		_change_notify();
-
-	} else if (name.begins_with("shapes/")) {
-
-		int idx=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
-		if (what=="shape")
-			set_shape(idx,RefPtr(p_value));
-		else if (what=="transform")
+		int idx=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
+		if (what=="shape") {
+			if (idx>=shapes.size())
+				add_shape(RefPtr(p_value));
+			else
+				set_shape(idx,RefPtr(p_value));
+		} else if (what=="transform")
 			set_shape_transform(idx,p_value);
 		else if (what=="trigger")
 			set_shape_as_trigger(idx,p_value);
@@ -143,12 +140,10 @@ bool CollisionObject2D::_get(const StringName& p_name,Variant &r_ret) const {
 
 	String name=p_name;
 
-	if (name=="shape_count") {
-		r_ret= shapes.size();
-	} else if (name.begins_with("shapes/")) {
+	if (name.begins_with("shapes/")) {
 
-		int idx=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
+		int idx=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
 		if (what=="shape")
 			r_ret= get_shape(idx);
 		else if (what=="transform")
@@ -163,7 +158,7 @@ bool CollisionObject2D::_get(const StringName& p_name,Variant &r_ret) const {
 
 void CollisionObject2D::_get_property_list( List<PropertyInfo> *p_list) const {
 
-	p_list->push_back( PropertyInfo(Variant::INT,"shape_count",PROPERTY_HINT_RANGE,"0,256,1",PROPERTY_USAGE_NOEDITOR|PROPERTY_USAGE_NO_INSTANCE_STATE) );
+	//p_list->push_back( PropertyInfo(Variant::INT,"shape_count",PROPERTY_HINT_RANGE,"0,256,1",PROPERTY_USAGE_NOEDITOR|PROPERTY_USAGE_NO_INSTANCE_STATE) );
 
 	for(int i=0;i<shapes.size();i++) {
 		String path="shapes/"+itos(i)+"/";
@@ -254,12 +249,19 @@ void CollisionObject2D::_bind_methods() {
 
 void CollisionObject2D::add_shape(const Ref<Shape2D>& p_shape, const Matrix32& p_transform) {
 
+	ERR_FAIL_COND(p_shape.is_null());
+
 	ShapeData sdata;
 	sdata.shape=p_shape;
 	sdata.xform=p_transform;
 	sdata.trigger=false;
-	shapes.push_back(sdata);
-	_update_shapes();
+
+	if (area)
+		Physics2DServer::get_singleton()->area_add_shape(get_rid(),p_shape->get_rid(),p_transform);
+	else
+		Physics2DServer::get_singleton()->body_add_shape(get_rid(),p_shape->get_rid(),p_transform);
+
+	shapes.push_back(sdata);	
 
 }
 int CollisionObject2D::get_shape_count() const {
@@ -270,8 +272,15 @@ int CollisionObject2D::get_shape_count() const {
 void CollisionObject2D::set_shape(int p_shape_idx, const Ref<Shape2D>& p_shape) {
 
 	ERR_FAIL_INDEX(p_shape_idx,shapes.size());
+	ERR_FAIL_COND(p_shape.is_null());
+
 	shapes[p_shape_idx].shape=p_shape;
-	_update_shapes();
+	if (area)
+		Physics2DServer::get_singleton()->area_set_shape(get_rid(),p_shape_idx,p_shape->get_rid());
+	else
+		Physics2DServer::get_singleton()->body_set_shape(get_rid(),p_shape_idx,p_shape->get_rid());
+
+//	_update_shapes();
 }
 
 void CollisionObject2D::set_shape_transform(int p_shape_idx, const Matrix32& p_transform) {
@@ -279,7 +288,12 @@ void CollisionObject2D::set_shape_transform(int p_shape_idx, const Matrix32& p_t
 	ERR_FAIL_INDEX(p_shape_idx,shapes.size());
 	shapes[p_shape_idx].xform=p_transform;
 
-	_update_shapes();
+	if (area)
+		Physics2DServer::get_singleton()->area_set_shape_transform(get_rid(),p_shape_idx,p_transform);
+	else
+		Physics2DServer::get_singleton()->body_set_shape_transform(get_rid(),p_shape_idx,p_transform);
+
+//	_update_shapes();
 }
 
 Ref<Shape2D> CollisionObject2D::get_shape(int p_shape_idx) const {
diff --git a/scene/2d/node_2d.cpp b/scene/2d/node_2d.cpp
index 99c33c787d..6141b6a09e 100644
--- a/scene/2d/node_2d.cpp
+++ b/scene/2d/node_2d.cpp
@@ -398,11 +398,11 @@ void Node2D::_bind_methods() {
 
 	ObjectTypeDB::bind_method(_MD("get_relative_transform"),&Node2D::get_relative_transform);
 
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"transform/pos"),_SCS("set_pos"),_SCS("get_pos"));
-	ADD_PROPERTY(PropertyInfo(Variant::REAL,"transform/rot",PROPERTY_HINT_RANGE,"-1440,1440,0.1"),_SCS("_set_rotd"),_SCS("_get_rotd"));
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"transform/scale"),_SCS("set_scale"),_SCS("get_scale"));
-	ADD_PROPERTY(PropertyInfo(Variant::INT,"z/z",PROPERTY_HINT_RANGE,itos(VS::CANVAS_ITEM_Z_MIN)+","+itos(VS::CANVAS_ITEM_Z_MAX)+",1"),_SCS("set_z"),_SCS("get_z"));
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"z/relative"),_SCS("set_z_as_relative"),_SCS("is_z_relative"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2,"transform/pos"),_SCS("set_pos"),_SCS("get_pos"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::REAL,"transform/rot",PROPERTY_HINT_RANGE,"-1440,1440,0.1"),_SCS("_set_rotd"),_SCS("_get_rotd"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::VECTOR2,"transform/scale"),_SCS("set_scale"),_SCS("get_scale"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::INT,"z/z",PROPERTY_HINT_RANGE,itos(VS::CANVAS_ITEM_Z_MIN)+","+itos(VS::CANVAS_ITEM_Z_MAX)+",1"),_SCS("set_z"),_SCS("get_z"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::BOOL,"z/relative"),_SCS("set_z_as_relative"),_SCS("is_z_relative"));
 
 
 }
diff --git a/scene/2d/particles_2d.cpp b/scene/2d/particles_2d.cpp
index f0b7c2be60..8f805ceba2 100644
--- a/scene/2d/particles_2d.cpp
+++ b/scene/2d/particles_2d.cpp
@@ -1072,19 +1072,19 @@ void Particles2D::_bind_methods() {
 
 	ADD_PROPERTY(PropertyInfo(Variant::INT,"config/amount",PROPERTY_HINT_EXP_RANGE,"1,1024"),_SCS("set_amount"),_SCS("get_amount") );
 	ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/lifetime",PROPERTY_HINT_EXP_RANGE,"0.1,3600,0.1"),_SCS("set_lifetime"),_SCS("get_lifetime") );
-	ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/time_scale",PROPERTY_HINT_EXP_RANGE,"0.01,128,0.01"),_SCS("set_time_scale"),_SCS("get_time_scale") );
-	ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/preprocess",PROPERTY_HINT_EXP_RANGE,"0.1,3600,0.1"),_SCS("set_pre_process_time"),_SCS("get_pre_process_time") );
-	ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/emit_timeout",PROPERTY_HINT_RANGE,"0,3600,0.1"),_SCS("set_emit_timeout"),_SCS("get_emit_timeout") );
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"config/emitting"),_SCS("set_emitting"),_SCS("is_emitting") );
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"config/offset"),_SCS("set_emissor_offset"),_SCS("get_emissor_offset"));
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"config/half_extents"),_SCS("set_emission_half_extents"),_SCS("get_emission_half_extents"));
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"config/local_space"),_SCS("set_use_local_space"),_SCS("is_using_local_space"));
-	ADD_PROPERTY(PropertyInfo(Variant::REAL,"config/explosiveness",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_explosiveness"),_SCS("get_explosiveness"));
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"config/flip_h"),_SCS("set_flip_h"),_SCS("is_flipped_h"));
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL,"config/flip_v"),_SCS("set_flip_v"),_SCS("is_flipped_v"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"config/texture",PROPERTY_HINT_RESOURCE_TYPE,"Texture"),_SCS("set_texture"),_SCS("get_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::INT,"config/h_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_h_frames"),_SCS("get_h_frames"));
-	ADD_PROPERTY(PropertyInfo(Variant::INT,"config/v_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_v_frames"),_SCS("get_v_frames"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::REAL,"config/time_scale",PROPERTY_HINT_EXP_RANGE,"0.01,128,0.01"),_SCS("set_time_scale"),_SCS("get_time_scale") );
+	ADD_PROPERTYNZ(PropertyInfo(Variant::REAL,"config/preprocess",PROPERTY_HINT_EXP_RANGE,"0.1,3600,0.1"),_SCS("set_pre_process_time"),_SCS("get_pre_process_time") );
+	ADD_PROPERTYNZ(PropertyInfo(Variant::REAL,"config/emit_timeout",PROPERTY_HINT_RANGE,"0,3600,0.1"),_SCS("set_emit_timeout"),_SCS("get_emit_timeout") );
+	ADD_PROPERTYNO(PropertyInfo(Variant::BOOL,"config/emitting"),_SCS("set_emitting"),_SCS("is_emitting") );
+	ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2,"config/offset"),_SCS("set_emissor_offset"),_SCS("get_emissor_offset"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2,"config/half_extents"),_SCS("set_emission_half_extents"),_SCS("get_emission_half_extents"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::BOOL,"config/local_space"),_SCS("set_use_local_space"),_SCS("is_using_local_space"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::REAL,"config/explosiveness",PROPERTY_HINT_RANGE,"0,1,0.01"),_SCS("set_explosiveness"),_SCS("get_explosiveness"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL,"config/flip_h"),_SCS("set_flip_h"),_SCS("is_flipped_h"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::BOOL,"config/flip_v"),_SCS("set_flip_v"),_SCS("is_flipped_v"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"config/texture",PROPERTY_HINT_RESOURCE_TYPE,"Texture"),_SCS("set_texture"),_SCS("get_texture"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::INT,"config/h_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_h_frames"),_SCS("get_h_frames"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::INT,"config/v_frames",PROPERTY_HINT_RANGE,"1,512,1"),_SCS("set_v_frames"),_SCS("get_v_frames"));
 
 
 	for(int i=0;i<PARAM_MAX;i++) {
@@ -1092,10 +1092,10 @@ void Particles2D::_bind_methods() {
 	}
 
 	for(int i=0;i<PARAM_MAX;i++) {
-		ADD_PROPERTYI(PropertyInfo(Variant::REAL,_particlesframe_property_rnames[i],PROPERTY_HINT_RANGE,"-1,1,0.01"),_SCS("set_randomness"),_SCS("get_randomness"),i);
+		ADD_PROPERTYINZ(PropertyInfo(Variant::REAL,_particlesframe_property_rnames[i],PROPERTY_HINT_RANGE,"-1,1,0.01"),_SCS("set_randomness"),_SCS("get_randomness"),i);
 	}
 
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "color_phases/count",PROPERTY_HINT_RANGE,"0,4,1", 0), _SCS("set_color_phases"), _SCS("get_color_phases"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "color_phases/count",PROPERTY_HINT_RANGE,"0,4,1", 0), _SCS("set_color_phases"), _SCS("get_color_phases"));
 
 	//Backward compatibility. They will be converted to color ramp
 	for(int i=0;i<MAX_COLOR_PHASES;i++) {
@@ -1104,10 +1104,10 @@ void Particles2D::_bind_methods() {
 		ADD_PROPERTYI( PropertyInfo( Variant::COLOR, phase+"color", PROPERTY_HINT_NONE, "", 0),_SCS("set_color_phase_color"),_SCS("get_color_phase_color"),i );
 	}
 
-	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color/color"),_SCS("set_color"),_SCS("get_color"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"color/color_ramp",PROPERTY_HINT_RESOURCE_TYPE,"ColorRamp"),_SCS("set_color_ramp"),_SCS("get_color_ramp"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::COLOR, "color/color"),_SCS("set_color"),_SCS("get_color"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"color/color_ramp",PROPERTY_HINT_RESOURCE_TYPE,"ColorRamp"),_SCS("set_color_ramp"),_SCS("get_color_ramp"));
 
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2_ARRAY,"emission_points",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("set_emission_points"),_SCS("get_emission_points"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::VECTOR2_ARRAY,"emission_points",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("set_emission_points"),_SCS("get_emission_points"));
 
 	BIND_CONSTANT( PARAM_DIRECTION );
 	BIND_CONSTANT( PARAM_SPREAD );
diff --git a/scene/2d/sprite.cpp b/scene/2d/sprite.cpp
index 0485033691..c521952f9b 100644
--- a/scene/2d/sprite.cpp
+++ b/scene/2d/sprite.cpp
@@ -103,14 +103,18 @@ void Sprite::set_texture(const Ref<Texture>& p_texture) {
 
 	if (p_texture==texture)
 		return;
+#ifdef DEBUG_ENABLED
 	if (texture.is_valid()) {
 		texture->disconnect(CoreStringNames::get_singleton()->changed,this,SceneStringNames::get_singleton()->update);
 	}
+#endif
 	texture=p_texture;
+#ifdef DEBUG_ENABLED
 	if (texture.is_valid()) {
 		texture->set_flags(texture->get_flags()); //remove repeat from texture, it looks bad in sprites
 		texture->connect(CoreStringNames::get_singleton()->changed,this,SceneStringNames::get_singleton()->update);
 	}
+#endif
 	update();
 	item_rect_changed();
 }
@@ -313,17 +317,17 @@ void Sprite::_bind_methods() {
 
 	ADD_SIGNAL(MethodInfo("frame_changed"));
 
-	ADD_PROPERTY( PropertyInfo( Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_texture"),_SCS("get_texture"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
-	ADD_PROPERTY( PropertyInfo( Variant::VECTOR2, "offset"), _SCS("set_offset"),_SCS("get_offset"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "flip_h"), _SCS("set_flip_h"),_SCS("is_flipped_h"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "flip_v"), _SCS("set_flip_v"),_SCS("is_flipped_v"));
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "vframes"), _SCS("set_vframes"),_SCS("get_vframes"));
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "hframes"), _SCS("set_hframes"),_SCS("get_hframes"));
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "frame",PROPERTY_HINT_SPRITE_FRAME), _SCS("set_frame"),_SCS("get_frame"));
-	ADD_PROPERTY( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "region"), _SCS("set_region"),_SCS("is_region"));
-	ADD_PROPERTY( PropertyInfo( Variant::RECT2, "region_rect"), _SCS("set_region_rect"),_SCS("get_region_rect"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_texture"),_SCS("get_texture"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::VECTOR2, "offset"), _SCS("set_offset"),_SCS("get_offset"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "flip_h"), _SCS("set_flip_h"),_SCS("is_flipped_h"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "flip_v"), _SCS("set_flip_v"),_SCS("is_flipped_v"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::INT, "vframes"), _SCS("set_vframes"),_SCS("get_vframes"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::INT, "hframes"), _SCS("set_hframes"),_SCS("get_hframes"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "frame",PROPERTY_HINT_SPRITE_FRAME), _SCS("set_frame"),_SCS("get_frame"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "region"), _SCS("set_region"),_SCS("is_region"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::RECT2, "region_rect"), _SCS("set_region_rect"),_SCS("get_region_rect"));
 
 }
 
@@ -530,10 +534,10 @@ void ViewportSprite::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("set_modulate","modulate"),&ViewportSprite::set_modulate);
 	ObjectTypeDB::bind_method(_MD("get_modulate"),&ViewportSprite::get_modulate);
 
-	ADD_PROPERTY( PropertyInfo( Variant::NODE_PATH, "viewport"), _SCS("set_viewport_path"),_SCS("get_viewport_path"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
-	ADD_PROPERTY( PropertyInfo( Variant::VECTOR2, "offset"), _SCS("set_offset"),_SCS("get_offset"));
-	ADD_PROPERTY( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::NODE_PATH, "viewport"), _SCS("set_viewport_path"),_SCS("get_viewport_path"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::BOOL, "centered"), _SCS("set_centered"),_SCS("is_centered"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::VECTOR2, "offset"), _SCS("set_offset"),_SCS("get_offset"));
+	ADD_PROPERTYNO( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate"));
 
 }
 
diff --git a/scene/3d/area.cpp b/scene/3d/area.cpp
index a00946a07a..58cbbdba22 100644
--- a/scene/3d/area.cpp
+++ b/scene/3d/area.cpp
@@ -299,8 +299,8 @@ void Area::set_enable_monitoring(bool p_enable) {
 
 	if (monitoring) {
 
-		PhysicsServer::get_singleton()->area_set_monitor_callback(get_rid(),this,"_body_inout");
-		PhysicsServer::get_singleton()->area_set_area_monitor_callback(get_rid(),this,"_area_inout");
+		PhysicsServer::get_singleton()->area_set_monitor_callback(get_rid(),this,SceneStringNames::get_singleton()->_body_inout);
+		PhysicsServer::get_singleton()->area_set_area_monitor_callback(get_rid(),this,SceneStringNames::get_singleton()->_area_inout);
 	} else {
 		PhysicsServer::get_singleton()->area_set_monitor_callback(get_rid(),NULL,StringName());
 		PhysicsServer::get_singleton()->area_set_area_monitor_callback(get_rid(),NULL,StringName());
diff --git a/scene/3d/collision_object.cpp b/scene/3d/collision_object.cpp
index efc5db50e1..5ecadb48b8 100644
--- a/scene/3d/collision_object.cpp
+++ b/scene/3d/collision_object.cpp
@@ -122,8 +122,8 @@ bool CollisionObject::_set(const StringName& p_name, const Variant& p_value) {
 
 	} else if (name.begins_with("shapes/")) {
 
-		int idx=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
+		int idx=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
 		if (what=="shape")
 			set_shape(idx,RefPtr(p_value));
 		else if (what=="transform")
@@ -148,8 +148,8 @@ bool CollisionObject::_get(const StringName& p_name,Variant &r_ret) const {
 		r_ret= shapes.size();
 	} else if (name.begins_with("shapes/")) {
 
-		int idx=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
+		int idx=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
 		if (what=="shape")
 			r_ret= get_shape(idx);
 		else if (what=="transform")
diff --git a/scene/3d/skeleton.cpp b/scene/3d/skeleton.cpp
index ee1b28a8ae..9df29f70ec 100644
--- a/scene/3d/skeleton.cpp
+++ b/scene/3d/skeleton.cpp
@@ -41,8 +41,8 @@ bool Skeleton::_set(const StringName& p_path, const Variant& p_value) {
 	if (!path.begins_with("bones/"))
 		return false;
 		
-	int which=path.get_slice("/",1).to_int();
-	String what=path.get_slice("/",2);
+	int which=path.get_slicec('/',1).to_int();
+	String what=path.get_slicec('/',2);
 
 
 	if (which==bones.size() && what=="name") {
@@ -88,8 +88,8 @@ bool Skeleton::_get(const StringName& p_name,Variant &r_ret) const {
 	if (!path.begins_with("bones/"))
 		return false;
 		
-	int which=path.get_slice("/",1).to_int();
-	String what=path.get_slice("/",2);
+	int which=path.get_slicec('/',1).to_int();
+	String what=path.get_slicec('/',2);
 		
 	ERR_FAIL_INDEX_V( which, bones.size(), false );
 	
diff --git a/scene/3d/spatial.cpp b/scene/3d/spatial.cpp
index c672d0e94f..7117c59176 100644
--- a/scene/3d/spatial.cpp
+++ b/scene/3d/spatial.cpp
@@ -758,7 +758,7 @@ void Spatial::_bind_methods() {
 	ADD_PROPERTY( PropertyInfo(Variant::VECTOR3,"transform/rotation",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_EDITOR), _SCS("_set_rotation_deg"), _SCS("_get_rotation_deg") );
 	ADD_PROPERTY( PropertyInfo(Variant::VECTOR3,"transform/rotation_rad",PROPERTY_HINT_NONE,"",0), _SCS("set_rotation"), _SCS("get_rotation") );
 	ADD_PROPERTY( PropertyInfo(Variant::VECTOR3,"transform/scale",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_EDITOR), _SCS("set_scale"), _SCS("get_scale") );
-	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"), _SCS("_is_visible_") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::BOOL,"visibility/visible"), _SCS("_set_visible_"), _SCS("_is_visible_") );
 	//ADD_PROPERTY( PropertyInfo(Variant::TRANSFORM,"transform/local"), _SCS("set_transform"), _SCS("get_transform") );
 
 	ADD_SIGNAL( MethodInfo("visibility_changed" ) );
diff --git a/scene/animation/animation_player.cpp b/scene/animation/animation_player.cpp
index 74ae2c0d55..f8b58b5cb5 100644
--- a/scene/animation/animation_player.cpp
+++ b/scene/animation/animation_player.cpp
@@ -35,10 +35,10 @@ bool AnimationPlayer::_set(const StringName& p_name, const Variant& p_value) {
 
 	String name=p_name;
 
-	if (name=="playback/speed" || name=="speed") { //bw compatibility
+	if (p_name==SceneStringNames::get_singleton()->playback_speed || p_name==SceneStringNames::get_singleton()->speed) { //bw compatibility
 		set_speed(p_value);
 
-	} else if (name=="playback/active") {
+	} else if (p_name==SceneStringNames::get_singleton()->playback_active) {
 		set_active(p_value);
 	} else if (name.begins_with("playback/play")) {
 
@@ -52,16 +52,16 @@ bool AnimationPlayer::_set(const StringName& p_name, const Variant& p_value) {
 	} else if (name.begins_with("anims/")) {
 	
 
-		String which=name.get_slice("/",1);
+		String which=name.get_slicec('/',1);
 		
 		add_animation(which,p_value);
 	} else if (name.begins_with("next/")) {
 
 
-		String which=name.get_slice("/",1);
+		String which=name.get_slicec('/',1);
 		animation_set_next(which,p_value);
 
-	} else if (name=="blend_times") {
+	} else if (p_name==SceneStringNames::get_singleton()->blend_times) {
 	
 		Array array=p_value;
 		int len = array.size();
@@ -77,7 +77,7 @@ bool AnimationPlayer::_set(const StringName& p_name, const Variant& p_value) {
 			set_blend_time(from,to,time);
 		}
 
-	} else if (name=="autoplay") {
+	} else if (p_name==SceneStringNames::get_singleton()->autoplay) {
 		autoplay=p_value;
 	
 	} else
@@ -106,12 +106,12 @@ bool AnimationPlayer::_get(const StringName& p_name,Variant &r_ret) const {
 
 	} else if (name.begins_with("anims/")) {
 	
-		String which=name.get_slice("/",1);
+		String which=name.get_slicec('/',1);
 		
 		r_ret= get_animation(which).get_ref_ptr();
 	} else if (name.begins_with("next/")) {
 
-		String which=name.get_slice("/",1);
+		String which=name.get_slicec('/',1);
 
 		r_ret= animation_get_next(which);
 
@@ -661,8 +661,11 @@ void AnimationPlayer::_animation_process(float p_delta) {
 
 Error AnimationPlayer::add_animation(const StringName& p_name, const Ref<Animation>& p_animation) {
 
+#ifdef DEBUG_ENABLED
 	ERR_EXPLAIN("Invalid animation name: "+String(p_name));
 	ERR_FAIL_COND_V( String(p_name).find("/")!=-1 || String(p_name).find(":")!=-1 || String(p_name).find(",")!=-1 || String(p_name).find("[")!=-1, ERR_INVALID_PARAMETER );
+#endif
+
 	ERR_FAIL_COND_V( p_animation.is_null() , ERR_INVALID_PARAMETER );
 	
 	//print_line("Add anim: "+String(p_name)+" name: "+p_animation->get_name());
@@ -1271,7 +1274,7 @@ AnimationPlayer::AnimationPlayer() {
 	animation_process_mode=ANIMATION_PROCESS_IDLE;
 	processing=false;
         default_blend_time=0;
-	root=NodePath("..");
+	root=SceneStringNames::get_singleton()->path_pp;
 	playing = false;
 	active=true;
 }
diff --git a/scene/audio/sample_player.cpp b/scene/audio/sample_player.cpp
index 25e83df39d..b93f7e7ddd 100644
--- a/scene/audio/sample_player.cpp
+++ b/scene/audio/sample_player.cpp
@@ -102,7 +102,7 @@ bool SamplePlayer::_get(const StringName& p_name,Variant &r_ret) const {
 		r_ret= get_sample_library();
 	} else if (name.begins_with("default/")) {
 
-			String what=name.get_slice("/",1);
+			String what=name.get_slicec('/',1);
 
 			if (what=="volume_db")
 				r_ret= get_default_volume_db();
diff --git a/scene/gui/base_button.cpp b/scene/gui/base_button.cpp
index 8b6f433c9c..965e7f399d 100644
--- a/scene/gui/base_button.cpp
+++ b/scene/gui/base_button.cpp
@@ -390,10 +390,10 @@ void BaseButton::_bind_methods() {
 	ADD_SIGNAL( MethodInfo("pressed" ) );
 	ADD_SIGNAL( MethodInfo("released" ) );
 	ADD_SIGNAL( MethodInfo("toggled", PropertyInfo( Variant::BOOL,"pressed") ) );
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "disabled"), _SCS("set_disabled"), _SCS("is_disabled"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "disabled"), _SCS("set_disabled"), _SCS("is_disabled"));
 	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "toggle_mode"), _SCS("set_toggle_mode"), _SCS("is_toggle_mode"));
-    ADD_PROPERTY( PropertyInfo( Variant::BOOL, "is_pressed"), _SCS("set_pressed"), _SCS("is_pressed"));
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "click_on_press"), _SCS("set_click_on_press"), _SCS("get_click_on_press"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "is_pressed"), _SCS("set_pressed"), _SCS("is_pressed"));
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "click_on_press"), _SCS("set_click_on_press"), _SCS("get_click_on_press"));
 
 
 	BIND_CONSTANT( DRAW_NORMAL );
diff --git a/scene/gui/button.cpp b/scene/gui/button.cpp
index b465db5c80..edeb18bfc1 100644
--- a/scene/gui/button.cpp
+++ b/scene/gui/button.cpp
@@ -225,11 +225,11 @@ void Button::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_text_align"),&Button::get_text_align);
 	ObjectTypeDB::bind_method(_MD("is_flat"),&Button::is_flat);
 
-	ADD_PROPERTY( PropertyInfo( Variant::STRING, "text", PROPERTY_HINT_NONE,"",PROPERTY_USAGE_DEFAULT_INTL ), _SCS("set_text"),_SCS("get_text") );
-	ADD_PROPERTY( PropertyInfo( Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture" ), _SCS("set_button_icon"),_SCS("get_button_icon") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::STRING, "text", PROPERTY_HINT_NONE,"",PROPERTY_USAGE_DEFAULT_INTL ), _SCS("set_text"),_SCS("get_text") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::OBJECT, "icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture" ), _SCS("set_button_icon"),_SCS("get_button_icon") );
 	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "flat" ), _SCS("set_flat"),_SCS("is_flat") );
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "clip_text" ), _SCS("set_clip_text"),_SCS("get_clip_text") );
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "align",PROPERTY_HINT_ENUM,"Left,Center,Right" ), _SCS("set_text_align"),_SCS("get_text_align") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "clip_text" ), _SCS("set_clip_text"),_SCS("get_clip_text") );
+	ADD_PROPERTYNO( PropertyInfo( Variant::INT, "align",PROPERTY_HINT_ENUM,"Left,Center,Right" ), _SCS("set_text_align"),_SCS("get_text_align") );
 
 }
 
diff --git a/scene/gui/button_array.cpp b/scene/gui/button_array.cpp
index 7f565de244..b86e32dda7 100644
--- a/scene/gui/button_array.cpp
+++ b/scene/gui/button_array.cpp
@@ -34,7 +34,7 @@ bool ButtonArray::_set(const StringName& p_name, const Variant& p_value) {
 	String n=String(p_name);
 	if (n.begins_with("button/")) {
 
-		String what = n.get_slice("/",1);
+		String what = n.get_slicec('/',1);
 		if (what=="count") {
 			int new_size=p_value;
 			if (new_size>0 && buttons.size()==0) {
@@ -57,7 +57,7 @@ bool ButtonArray::_set(const StringName& p_name, const Variant& p_value) {
 		} else {
 			int idx=what.to_int();
 			ERR_FAIL_INDEX_V(idx,buttons.size(),false);
-			String f = n.get_slice("/",2);
+			String f = n.get_slicec('/',2);
 			if (f=="text")
 				buttons[idx].text=p_value;
 			else if (f=="icon")
@@ -80,7 +80,7 @@ bool ButtonArray::_get(const StringName& p_name,Variant &r_ret) const {
 	String n=String(p_name);
 	if (n.begins_with("button/")) {
 
-		String what = n.get_slice("/",1);
+		String what = n.get_slicec('/',1);
 		if (what=="count") {
 			r_ret=buttons.size();
 		} else if (what=="align") {
@@ -92,7 +92,7 @@ bool ButtonArray::_get(const StringName& p_name,Variant &r_ret) const {
 		} else {
 			int idx=what.to_int();
 			ERR_FAIL_INDEX_V(idx,buttons.size(),false);
-			String f = n.get_slice("/",2);
+			String f = n.get_slicec('/',2);
 			if (f=="text")
 				r_ret=buttons[idx].text;
 			else if (f=="icon")
diff --git a/scene/gui/control.cpp b/scene/gui/control.cpp
index 2367c03e99..a1c0644650 100644
--- a/scene/gui/control.cpp
+++ b/scene/gui/control.cpp
@@ -136,27 +136,27 @@ bool Control::_set(const StringName& p_name, const Variant& p_value) {
 	if (p_value.get_type()==Variant::NIL) {
 
 		if (name.begins_with("custom_icons/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			data.icon_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
 			update();
 		} else if (name.begins_with("custom_styles/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			data.style_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
 			update();
 		} else if (name.begins_with("custom_fonts/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			data.font_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
 			update();
 		} else if (name.begins_with("custom_colors/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			data.color_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
 			update();
 		} else if (name.begins_with("custom_constants/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			data.constant_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
 			update();
@@ -165,23 +165,23 @@ bool Control::_set(const StringName& p_name, const Variant& p_value) {
 
 	} else {
 		if (name.begins_with("custom_icons/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			notification(NOTIFICATION_THEME_CHANGED);
 			add_icon_override(dname,p_value);
 		} else if (name.begins_with("custom_styles/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			add_style_override(dname,p_value);
 			notification(NOTIFICATION_THEME_CHANGED);
 		} else if (name.begins_with("custom_fonts/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			add_font_override(dname,p_value);
 			notification(NOTIFICATION_THEME_CHANGED);
 		} else if (name.begins_with("custom_colors/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			add_color_override(dname,p_value);
 			notification(NOTIFICATION_THEME_CHANGED);
 		} else if (name.begins_with("custom_constants/")) {
-			String dname = name.get_slice("/",1);
+			String dname = name.get_slicec('/',1);
 			add_constant_override(dname,p_value);
 			notification(NOTIFICATION_THEME_CHANGED);
 		} else
@@ -217,22 +217,22 @@ bool Control::_get(const StringName& p_name,Variant &r_ret) const {
 		return false;
 
 	if (sname.begins_with("custom_icons/")) {
-		String name = sname.get_slice("/",1);
+		String name = sname.get_slicec('/',1);
 
 		r_ret= data.icon_override.has(name)?Variant(data.icon_override[name]):Variant();
 	} else if (sname.begins_with("custom_styles/")) {
-		String name = sname.get_slice("/",1);
+		String name = sname.get_slicec('/',1);
 
 		r_ret= data.style_override.has(name)?Variant(data.style_override[name]):Variant();
 	} else if (sname.begins_with("custom_fonts/")) {
-		String name = sname.get_slice("/",1);
+		String name = sname.get_slicec('/',1);
 
 		r_ret= data.font_override.has(name)?Variant(data.font_override[name]):Variant();
 	} else if (sname.begins_with("custom_colors/")) {
-		String name = sname.get_slice("/",1);
+		String name = sname.get_slicec('/',1);
 		r_ret= data.color_override.has(name)?Variant(data.color_override[name]):Variant();
 	} else if (sname.begins_with("custom_constants/")) {
-		String name = sname.get_slice("/",1);
+		String name = sname.get_slicec('/',1);
 
 		r_ret= data.constant_override.has(name)?Variant(data.constant_override[name]):Variant();
 	} else
@@ -2832,16 +2832,16 @@ void Control::_bind_methods() {
 	ADD_PROPERTYNZ( PropertyInfo(Variant::VECTOR2,"rect/size", PROPERTY_HINT_NONE, "",PROPERTY_USAGE_EDITOR), _SCS("set_size"),_SCS("get_size") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::VECTOR2,"rect/min_size"), _SCS("set_custom_minimum_size"),_SCS("get_custom_minimum_size") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::STRING,"hint/tooltip", PROPERTY_HINT_MULTILINE_TEXT), _SCS("set_tooltip"),_SCS("_get_tooltip") );
-	ADD_PROPERTYI( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/left" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_LEFT );
-	ADD_PROPERTYI( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/top" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_TOP );
-	ADD_PROPERTYI( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/right" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_RIGHT );
-	ADD_PROPERTYI( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/bottom" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_BOTTOM );
+	ADD_PROPERTYINZ( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/left" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_LEFT );
+	ADD_PROPERTYINZ( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/top" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_TOP );
+	ADD_PROPERTYINZ( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/right" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_RIGHT );
+	ADD_PROPERTYINZ( PropertyInfo(Variant::NODE_PATH,"focus_neighbour/bottom" ), _SCS("set_focus_neighbour"),_SCS("get_focus_neighbour"),MARGIN_BOTTOM );
 	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"focus/ignore_mouse"), _SCS("set_ignore_mouse"),_SCS("is_ignoring_mouse") );
 	ADD_PROPERTY( PropertyInfo(Variant::BOOL,"focus/stop_mouse"), _SCS("set_stop_mouse"),_SCS("is_stopping_mouse") );
 
 	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"size_flags/horizontal", PROPERTY_HINT_FLAGS, "Expand,Fill"), _SCS("set_h_size_flags"),_SCS("get_h_size_flags") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::INT,"size_flags/vertical", PROPERTY_HINT_FLAGS, "Expand,Fill"), _SCS("set_v_size_flags"),_SCS("get_v_size_flags") );
-	ADD_PROPERTY( PropertyInfo(Variant::INT,"size_flags/stretch_ratio", PROPERTY_HINT_RANGE, "1,128,0.01"), _SCS("set_stretch_ratio"),_SCS("get_stretch_ratio") );
+	ADD_PROPERTYNO( PropertyInfo(Variant::INT,"size_flags/stretch_ratio", PROPERTY_HINT_RANGE, "1,128,0.01"), _SCS("set_stretch_ratio"),_SCS("get_stretch_ratio") );
 	ADD_PROPERTYNZ( PropertyInfo(Variant::OBJECT,"theme/theme", PROPERTY_HINT_RESOURCE_TYPE, "Theme"), _SCS("set_theme"),_SCS("get_theme") );
 
 	BIND_CONSTANT( ANCHOR_BEGIN );
diff --git a/scene/gui/label.cpp b/scene/gui/label.cpp
index 27d0f568a2..e7af4fa349 100644
--- a/scene/gui/label.cpp
+++ b/scene/gui/label.cpp
@@ -613,11 +613,11 @@ void Label::_bind_methods() {
 	BIND_CONSTANT( VALIGN_BOTTOM );
 	BIND_CONSTANT( VALIGN_FILL );
 
-	ADD_PROPERTY( PropertyInfo( Variant::STRING, "text",PROPERTY_HINT_MULTILINE_TEXT,"",PROPERTY_USAGE_DEFAULT_INTL), _SCS("set_text"),_SCS("get_text") );
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "align", PROPERTY_HINT_ENUM,"Left,Center,Right,Fill" ),_SCS("set_align"),_SCS("get_align") );
-	ADD_PROPERTY( PropertyInfo( Variant::INT, "valign", PROPERTY_HINT_ENUM,"Top,Center,Bottom,Fill" ),_SCS("set_valign"),_SCS("get_valign") );
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "autowrap"),_SCS("set_autowrap"),_SCS("has_autowrap") );
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "uppercase"),_SCS("set_uppercase"),_SCS("is_uppercase") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::STRING, "text",PROPERTY_HINT_MULTILINE_TEXT,"",PROPERTY_USAGE_DEFAULT_INTL), _SCS("set_text"),_SCS("get_text") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "align", PROPERTY_HINT_ENUM,"Left,Center,Right,Fill" ),_SCS("set_align"),_SCS("get_align") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::INT, "valign", PROPERTY_HINT_ENUM,"Top,Center,Bottom,Fill" ),_SCS("set_valign"),_SCS("get_valign") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "autowrap"),_SCS("set_autowrap"),_SCS("has_autowrap") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "uppercase"),_SCS("set_uppercase"),_SCS("is_uppercase") );
 	ADD_PROPERTY( PropertyInfo( Variant::REAL, "percent_visible", PROPERTY_HINT_RANGE,"0,1,0.001"),_SCS("set_percent_visible"),_SCS("get_percent_visible") );
 
 }
diff --git a/scene/gui/texture_button.cpp b/scene/gui/texture_button.cpp
index 823fd55c6e..5b2caecb5b 100644
--- a/scene/gui/texture_button.cpp
+++ b/scene/gui/texture_button.cpp
@@ -157,14 +157,14 @@ void TextureButton::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_scale"),&TextureButton::get_scale);
 	ObjectTypeDB::bind_method(_MD("get_modulate"),&TextureButton::get_modulate);
 
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/normal",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_normal_texture"), _SCS("get_normal_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/pressed",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_pressed_texture"), _SCS("get_pressed_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/hover",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_hover_texture"), _SCS("get_hover_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/disabled",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_disabled_texture"), _SCS("get_disabled_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/focused",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_focused_texture"), _SCS("get_focused_texture"));
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT,"textures/click_mask",PROPERTY_HINT_RESOURCE_TYPE,"BitMap"), _SCS("set_click_mask"), _SCS("get_click_mask")) ;
-	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2,"params/scale",PROPERTY_HINT_RANGE,"0.01,1024,0.01"), _SCS("set_scale"), _SCS("get_scale"));
-	ADD_PROPERTY(PropertyInfo(Variant::COLOR,"params/modulate"), _SCS("set_modulate"), _SCS("get_modulate"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/normal",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_normal_texture"), _SCS("get_normal_texture"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/pressed",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_pressed_texture"), _SCS("get_pressed_texture"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/hover",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_hover_texture"), _SCS("get_hover_texture"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/disabled",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_disabled_texture"), _SCS("get_disabled_texture"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/focused",PROPERTY_HINT_RESOURCE_TYPE,"Texture"), _SCS("set_focused_texture"), _SCS("get_focused_texture"));
+	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT,"textures/click_mask",PROPERTY_HINT_RESOURCE_TYPE,"BitMap"), _SCS("set_click_mask"), _SCS("get_click_mask")) ;
+	ADD_PROPERTYNO(PropertyInfo(Variant::VECTOR2,"params/scale",PROPERTY_HINT_RANGE,"0.01,1024,0.01"), _SCS("set_scale"), _SCS("get_scale"));
+	ADD_PROPERTYNO(PropertyInfo(Variant::COLOR,"params/modulate"), _SCS("set_modulate"), _SCS("get_modulate"));
 
 }
 
diff --git a/scene/gui/texture_frame.cpp b/scene/gui/texture_frame.cpp
index 931fb1cb1a..5a6bc86638 100644
--- a/scene/gui/texture_frame.cpp
+++ b/scene/gui/texture_frame.cpp
@@ -77,9 +77,9 @@ void TextureFrame::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("set_expand","enable"), & TextureFrame::set_expand );
 	ObjectTypeDB::bind_method(_MD("has_expand"), & TextureFrame::has_expand );
 
-	ADD_PROPERTY( PropertyInfo( Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), _SCS("set_texture"),_SCS("get_texture") );
-	ADD_PROPERTY( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate") );
-	ADD_PROPERTY( PropertyInfo( Variant::BOOL, "expand" ), _SCS("set_expand"),_SCS("has_expand") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), _SCS("set_texture"),_SCS("get_texture") );
+	ADD_PROPERTYNO( PropertyInfo( Variant::COLOR, "modulate"), _SCS("set_modulate"),_SCS("get_modulate") );
+	ADD_PROPERTYNZ( PropertyInfo( Variant::BOOL, "expand" ), _SCS("set_expand"),_SCS("has_expand") );
 
 }
 
diff --git a/scene/gui/tree.cpp b/scene/gui/tree.cpp
index a09920cb2b..6c15f1cae4 100644
--- a/scene/gui/tree.cpp
+++ b/scene/gui/tree.cpp
@@ -1106,7 +1106,7 @@ int Tree::draw_item(const Point2i& p_pos,const Point2& p_draw_ofs, const Size2&
 						int option = (int)p_item->cells[i].val;
 
 						String s = p_item->cells[i].text;
-						s=s.get_slice(",",option);
+						s=s.get_slicec(',',option);
 
 						Ref<Texture> downarrow = cache.select_arrow;
 
@@ -1527,7 +1527,7 @@ int Tree::propagate_mouse_event(const Point2i &p_pos,int x_ofs,int y_ofs,bool p_
 					popup_menu->clear();
 					for (int i=0;i<c.text.get_slice_count(",");i++) {
 
-						String s = c.text.get_slice(",",i);
+						String s = c.text.get_slicec(',',i);
 						popup_menu->add_item(s,i);
 
 					}
@@ -2234,7 +2234,7 @@ bool Tree::edit_selected() {
 		popup_menu->clear();
 		for (int i=0;i<c.text.get_slice_count(",");i++) {
 
-			String s = c.text.get_slice(",",i);
+			String s = c.text.get_slicec(',',i);
 			popup_menu->add_item(s,i);
 
 		}
diff --git a/scene/main/node.cpp b/scene/main/node.cpp
index b7fa5c8301..7e31bf8dd0 100644
--- a/scene/main/node.cpp
+++ b/scene/main/node.cpp
@@ -1891,7 +1891,7 @@ void Node::_bind_methods() {
 #ifdef TOOLS_ENABLED
 	ObjectTypeDB::bind_method(_MD("_set_import_path","import_path"),&Node::set_import_path);
 	ObjectTypeDB::bind_method(_MD("_get_import_path"),&Node::get_import_path);
-	ADD_PROPERTY( PropertyInfo(Variant::NODE_PATH,"_import_path",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("_set_import_path"),_SCS("_get_import_path"));
+	ADD_PROPERTYNZ( PropertyInfo(Variant::NODE_PATH,"_import_path",PROPERTY_HINT_NONE,"",PROPERTY_USAGE_NOEDITOR),_SCS("_set_import_path"),_SCS("_get_import_path"));
 
 #endif
 
diff --git a/scene/resources/animation.cpp b/scene/resources/animation.cpp
index 095406dad9..9d668a5716 100644
--- a/scene/resources/animation.cpp
+++ b/scene/resources/animation.cpp
@@ -42,8 +42,8 @@ bool Animation::_set(const StringName& p_name, const Variant& p_value) {
 		set_step(p_value);
 	else if (name.begins_with("tracks/")) {
 	
-		int track=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
+		int track=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
 
 		if (tracks.size()==track && what=="type") {
 		
@@ -257,8 +257,8 @@ bool Animation::_get(const StringName& p_name,Variant &r_ret) const {
 		r_ret= step;
 	else if (name.begins_with("tracks/")) {
 
-		int track=name.get_slice("/",1).to_int();
-		String what=name.get_slice("/",2);
+		int track=name.get_slicec('/',1).to_int();
+		String what=name.get_slicec('/',2);
 		ERR_FAIL_INDEX_V( track, tracks.size(), false );
 		if (what=="type") {
 		
diff --git a/scene/resources/baked_light.cpp b/scene/resources/baked_light.cpp
index 226edec9ae..31282a0274 100644
--- a/scene/resources/baked_light.cpp
+++ b/scene/resources/baked_light.cpp
@@ -311,11 +311,11 @@ bool BakedLight::_set(const StringName& p_name, const Variant& p_value) {
 	String n = p_name;
 	if (!n.begins_with("lightmap"))
 		return false;
-	int idx = n.get_slice("/",1).to_int();
+	int idx = n.get_slicec('/',1).to_int();
 	ERR_FAIL_COND_V(idx<0,false);
 	ERR_FAIL_COND_V(idx>lightmaps.size(),false);
 
-	String what = n.get_slice("/",2);
+	String what = n.get_slicec('/',2);
 	Ref<Texture> tex;
 	Size2 gens;
 
@@ -343,11 +343,11 @@ bool BakedLight::_get(const StringName& p_name,Variant &r_ret) const{
 	String n = p_name;
 	if (!n.begins_with("lightmap"))
 		return false;
-	int idx = n.get_slice("/",1).to_int();
+	int idx = n.get_slicec('/',1).to_int();
 	ERR_FAIL_COND_V(idx<0,false);
 	ERR_FAIL_COND_V(idx>lightmaps.size(),false);
 
-	String what = n.get_slice("/",2);
+	String what = n.get_slicec('/',2);
 
 	if (what=="texture") {
 		if (idx==lightmaps.size())
diff --git a/scene/resources/mesh.cpp b/scene/resources/mesh.cpp
index 039a4788d5..8cb0904415 100644
--- a/scene/resources/mesh.cpp
+++ b/scene/resources/mesh.cpp
@@ -99,7 +99,7 @@ bool Mesh::_set(const StringName& p_name, const Variant& p_value) {
 		if (sl==-1)
 			return false;
 		int idx=sname.substr(8,sl-8).to_int()-1;
-		String what = sname.get_slice("/",1);
+		String what = sname.get_slicec('/',1);
 		if (what=="material")
 			surface_set_material(idx,p_value);
 		else if (what=="name")
@@ -117,8 +117,8 @@ bool Mesh::_set(const StringName& p_name, const Variant& p_value) {
 		return false;
 
 
-	int idx=sname.get_slice("/",1).to_int();
-	String what=sname.get_slice("/",2);
+	int idx=sname.get_slicec('/',1).to_int();
+	String what=sname.get_slicec('/',2);
 
 	if (idx==surfaces.size()) {
 
@@ -180,7 +180,7 @@ bool Mesh::_get(const StringName& p_name,Variant &r_ret) const {
 		if (sl==-1)
 			return false;
 		int idx=sname.substr(8,sl-8).to_int()-1;
-		String what = sname.get_slice("/",1);
+		String what = sname.get_slicec('/',1);
 		if (what=="material")
 			r_ret=surface_get_material(idx);
 		else if (what=="name")
@@ -195,7 +195,7 @@ bool Mesh::_get(const StringName& p_name,Variant &r_ret) const {
 		return false;
 
 
-	int idx=sname.get_slice("/",1).to_int();
+	int idx=sname.get_slicec('/',1).to_int();
 	ERR_FAIL_INDEX_V(idx,surfaces.size(),false);
 
 	Dictionary d;
diff --git a/scene/resources/mesh_library.cpp b/scene/resources/mesh_library.cpp
index ffa29572ff..5ebab9be76 100644
--- a/scene/resources/mesh_library.cpp
+++ b/scene/resources/mesh_library.cpp
@@ -35,8 +35,8 @@ bool MeshLibrary::_set(const StringName& p_name, const Variant& p_value) {
 	String name=p_name;
 	if (name.begins_with("item/")) {
 
-		int idx = name.get_slice("/",1).to_int();
-		String what = name.get_slice("/",2);
+		int idx = name.get_slicec('/',1).to_int();
+		String what = name.get_slicec('/',2);
 		if (!item_map.has(idx))
 			create_item(idx);
 
@@ -60,9 +60,9 @@ bool MeshLibrary::_set(const StringName& p_name, const Variant& p_value) {
 bool MeshLibrary::_get(const StringName& p_name,Variant &r_ret) const {
 
 	String name=p_name;
-	int idx = name.get_slice("/",1).to_int();
+	int idx = name.get_slicec('/',1).to_int();
 	ERR_FAIL_COND_V(!item_map.has(idx),false);
-	String what = name.get_slice("/",2);
+	String what = name.get_slicec('/',2);
 
 	if(what=="name")
 		r_ret= get_item_name(idx);
diff --git a/scene/resources/packed_scene.cpp b/scene/resources/packed_scene.cpp
index a1cb1205e5..b6082c3a76 100644
--- a/scene/resources/packed_scene.cpp
+++ b/scene/resources/packed_scene.cpp
@@ -53,7 +53,7 @@ Node *PackedScene::instance(bool p_gen_edit_state) const {
 	if (prop_count)
 		props=&variants[0];
 
-	Vector<Variant> properties;
+	//Vector<Variant> properties;
 
 	const NodeData *nd = &nodes[0];
 
@@ -257,10 +257,13 @@ Error PackedScene::_parse_node(Node *p_owner,Node *p_node,int p_parent_idx, Map<
 		String name = E->get().name;
 		Variant value = p_node->get( E->get().name );
 
-		if (E->get().usage & PROPERTY_USAGE_STORE_IF_NONZERO && value.is_zero()) {
+		if (nd.instance<0 && ((E->get().usage & PROPERTY_USAGE_STORE_IF_NONZERO) && value.is_zero()) || ((E->get().usage & PROPERTY_USAGE_STORE_IF_NONONE) && value.is_one())) {
 			continue;
 		}
 
+		print_line("PASSED!");
+		print_line("at: "+String(p_node->get_name())+"::"+name+": -  nz: "+itos(E->get().usage&PROPERTY_USAGE_STORE_IF_NONZERO)+" no: "+itos(E->get().usage&PROPERTY_USAGE_STORE_IF_NONONE));
+		print_line("value: "+String(value)+" is zero: "+itos(value.is_zero())+" is one" +itos(value.is_one()));
 
 		if (nd.instance>=0) {
 			//only save changed properties in instance
@@ -278,7 +281,7 @@ Error PackedScene::_parse_node(Node *p_owner,Node *p_node,int p_parent_idx, Map<
 				continue;
 			}
 
-			if (instance_state[name]==value) {
+			if (instance_state.has(name) && instance_state[name]==value) {
 				continue;
 			}
 
diff --git a/scene/resources/sample_library.cpp b/scene/resources/sample_library.cpp
index 6bb9bc0d06..ffcaa1e675 100644
--- a/scene/resources/sample_library.cpp
+++ b/scene/resources/sample_library.cpp
@@ -34,7 +34,7 @@ bool SampleLibrary::_set(const StringName& p_name, const Variant& p_value) {
 
 	if (String(p_name).begins_with("samples/")) {
 
-		String name=String(p_name).get_slice("/",1);
+		String name=String(p_name).get_slicec('/',1);
 		if (p_value.get_type()==Variant::NIL)
 			sample_map.erase(name);
 		else {
@@ -66,7 +66,7 @@ bool SampleLibrary::_get(const StringName& p_name,Variant &r_ret) const {
 
 	if (String(p_name).begins_with("samples/")) {
 
-		String name=String(p_name).get_slice("/",1);
+		String name=String(p_name).get_slicec('/',1);
 		if(sample_map.has(name)) {
 			Dictionary d;
 			d["sample"]=sample_map[name].sample;
diff --git a/scene/resources/theme.cpp b/scene/resources/theme.cpp
index 21bdb6c0ab..3060fe41b4 100644
--- a/scene/resources/theme.cpp
+++ b/scene/resources/theme.cpp
@@ -40,9 +40,9 @@ bool Theme::_set(const StringName& p_name, const Variant& p_value) {
 
 	if (sname.find("/")!=-1) {
 
-		String type=sname.get_slice("/",1);
-		String node_type=sname.get_slice("/",0);
-		String name=sname.get_slice("/",2);
+		String type=sname.get_slicec('/',1);
+		String node_type=sname.get_slicec('/',0);
+		String name=sname.get_slicec('/',2);
 
 		if (type=="icons") {
 
@@ -75,9 +75,9 @@ bool Theme::_get(const StringName& p_name,Variant &r_ret) const {
 
 	if (sname.find("/")!=-1) {
 
-		String type=sname.get_slice("/",1);
-		String node_type=sname.get_slice("/",0);
-		String name=sname.get_slice("/",2);
+		String type=sname.get_slicec('/',1);
+		String node_type=sname.get_slicec('/',0);
+		String name=sname.get_slicec('/',2);
 
 		if (type=="icons") {
 
diff --git a/scene/scene_string_names.cpp b/scene/scene_string_names.cpp
index 2689c14718..9509878dc9 100644
--- a/scene/scene_string_names.cpp
+++ b/scene/scene_string_names.cpp
@@ -68,6 +68,8 @@ SceneStringNames::SceneStringNames() {
 	area_enter_shape = StaticCString::create("area_enter_shape");
 	area_exit_shape = StaticCString::create("area_exit_shape");
 
+	_body_inout = StaticCString::create("_body_inout");
+	_area_inout = StaticCString::create("_area_inout");
 
 	idle=StaticCString::create("idle");
 	iteration=StaticCString::create("iteration");
@@ -161,4 +163,11 @@ SceneStringNames::SceneStringNames() {
 
 	frame_changed=StaticCString::create("frame_changed");
 
+	playback_speed=StaticCString::create("playback/speed");
+	playback_active=StaticCString::create("playback/active");
+	autoplay=StaticCString::create("autoplay");
+	blend_times=StaticCString::create("blend_times");
+	speed=StaticCString::create("speed");
+
+	path_pp=NodePath("..");
 }
diff --git a/scene/scene_string_names.h b/scene/scene_string_names.h
index 83e817dbf7..48f17ed38b 100644
--- a/scene/scene_string_names.h
+++ b/scene/scene_string_names.h
@@ -30,7 +30,7 @@
 #define SCENE_STRING_NAMES_H
 
 #include "string_db.h"
-
+#include "path_db.h"
 class SceneStringNames {
 
 friend void register_scene_types();
@@ -87,6 +87,8 @@ public:
 	StringName area_enter_shape;
 	StringName area_exit_shape;
 
+	StringName _body_inout;
+	StringName _area_inout;
 
 
 	StringName _get_gizmo_geometry;
@@ -170,6 +172,14 @@ public:
 
 	StringName frame_changed;
 
+	StringName playback_speed;
+	StringName playback_active;
+	StringName autoplay;
+	StringName blend_times;
+	StringName speed;
+
+	NodePath path_pp;
+
 
 };