Replace object to NodePath

Add time callback support
Update demo

5 files changed, 177 insertions, 69 deletions

diff --git a/demos/misc/tween/engine.cfg b/demos/misc/tween/engine.cfg
index 7966a56830..f97e540dbd 100644
--- a/demos/misc/tween/engine.cfg
+++ b/demos/misc/tween/engine.cfg
@@ -3,6 +3,7 @@
 name="Tween Demo"
 main_scene="res://main.xml"
 icon="icon.png"
+target_fps=60
 
 [display]
 
diff --git a/demos/misc/tween/main.gd b/demos/misc/tween/main.gd
index 002e720e79..defba21b79 100644
--- a/demos/misc/tween/main.gd
+++ b/demos/misc/tween/main.gd
@@ -7,7 +7,7 @@ extends Control
 
 var trans = ["linear", "sine", "quint", "quart", "quad", "expo", "elastic", "cubic", "circ", "bounce", "back"]
 var eases = ["in", "out", "in_out", "out_in"]
-var modes = ["move", "color", "scale", "rotate", "repeat", "pause"]
+var modes = ["move", "color", "scale", "rotate", "callback", "repeat", "pause"]
 
 var state = {
 	trans = Tween.TRANS_LINEAR,
@@ -105,6 +105,10 @@ func reset_tween():
 		tween.interpolate_method(sprite, "set_rot", 0, 6.28, 2, state.trans, state.eases)
 		tween.interpolate_method(sprite, "set_rot", 6.28, 0, 2, state.trans, state.eases, 2)
 	
+	if get_node("modes/callback").is_pressed():
+		tween.interpolate_callback(self, "on_callback", 0.5, "0.5 second's after")
+		tween.interpolate_callback(self, "on_callback", 1.2, "1.2 second's after")
+	
 	tween.set_repeat(get_node("modes/repeat").is_pressed())
 	tween.start()
 	
@@ -134,3 +138,5 @@ func _on_timeline_value_changed( value ):
 	var runtime = tween.get_runtime()
 	tween.seek(runtime * value / 100)
 	
+func on_callback(arg):
+	print("on_callback -> ", arg)
diff --git a/demos/misc/tween/main.xml b/demos/misc/tween/main.xml
index f403937818..06c379e214 100644
--- a/demos/misc/tween/main.xml
+++ b/demos/misc/tween/main.xml
@@ -5,7 +5,7 @@
 	<main_resource>
 		<dictionary name="_bundled" shared="false">
 			<string> "names" </string>
-			<string_array  len="106">
+			<string_array  len="107">
 				<string> "main" </string>
 				<string> "Control" </string>
 				<string> "_import_path" </string>
@@ -63,6 +63,7 @@
 				<string> "color" </string>
 				<string> "scale" </string>
 				<string> "rotate" </string>
+				<string> "callback" </string>
 				<string> "repeat" </string>
 				<string> "pause" </string>
 				<string> "label_1" </string>
@@ -118,9 +119,9 @@
 			<string> "conn_count" </string>
 			<int> 2 </int>
 			<string> "node_count" </string>
-			<int> 34 </int>
+			<int> 35 </int>
 			<string> "variants" </string>
-			<array  len="91" shared="false">
+			<array  len="92" shared="false">
 				<node_path> "" </node_path>
 				<bool> True </bool>
 				<real> 1 </real>
@@ -290,11 +291,12 @@
 				<string> "out_in" </string>
 				<real> 305 </real>
 				<real> 402 </real>
-				<real> 65 </real>
+				<real> 77 </real>
 				<string> "move" </string>
 				<string> "color" </string>
 				<string> "scale" </string>
 				<string> "rotate" </string>
+				<string> "callback" </string>
 				<string> "repeat" </string>
 				<string> "pause" </string>
 				<real> 384 </real>
@@ -324,9 +326,9 @@
 				<real> 100 </real>
 			</array>
 			<string> "nodes" </string>
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16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 39, 33, 18, 34, 3, 35, 3, 36, 19, 0, 1, 0, 27, 44, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 40, 7, 15, 8, 41, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 42, 33, 18, 34, 3, 35, 3, 36, 19, 0, 1, 0, 27, 45, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 43, 7, 15, 8, 44, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 45, 33, 18, 34, 3, 35, 3, 36, 19, 0, 1, 0, 27, 46, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 46, 7, 15, 8, 47, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 48, 33, 18, 34, 3, 35, 3, 36, 19, 0, 0, 0, 23, 47, -1, 20, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 24, 49, 25, 12, 7, 50, 8, 51, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 3, 17, 8, 18, 8, 19, 2, 0, 13, 0, 27, 48, -1, 27, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 7, 52, 8, 16, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 53, 33, 18, 34, 3, 35, 3, 36, 19, 0, 13, 0, 27, 49, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 20, 7, 52, 8, 11, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 54, 33, 18, 34, 3, 35, 3, 36, 19, 0, 13, 0, 27, 50, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 22, 7, 52, 8, 23, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 55, 33, 18, 34, 3, 35, 3, 36, 19, 0, 13, 0, 27, 51, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 25, 7, 52, 8, 26, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 56, 33, 18, 34, 3, 35, 3, 36, 19, 0, 0, 0, 23, 52, -1, 20, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 24, 40, 25, 12, 7, 57, 8, 58, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 3, 17, 8, 18, 8, 19, 2, 0, 18, 0, 27, 53, -1, 27, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 7, 59, 8, 16, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 60, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 54, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 20, 7, 59, 8, 11, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 61, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 55, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 22, 7, 59, 8, 23, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 62, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 56, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 25, 7, 59, 8, 26, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 63, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 57, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 28, 7, 59, 8, 29, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 64, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 58, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 31, 7, 59, 8, 32, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 65, 33, 18, 34, 3, 35, 3, 36, 19, 0, 18, 0, 27, 59, -1, 28, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 34, 7, 59, 8, 35, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 28, 3, 29, 3, 30, 1, 31, 3, 32, 66, 33, 18, 34, 3, 35, 3, 36, 19, 0, 0, 0, 23, 54, -1, 20, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 24, 67, 25, 40, 7, 68, 8, 69, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 3, 17, 8, 18, 8, 19, 2, 0, 26, 0, 61, 60, -1, 30, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 7, 70, 8, 71, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 1, 16, 1, 17, 8, 19, 2, 62, 6, 63, 2, 64, 2, 65, 2, 66, 6, 67, 3, 68, 3, 32, 72, 36, 73, 69, 73, 70, 3, 71, 3, 72, 74, 0, 26, 0, 74, 73, -1, 19, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 75, 7, 70, 8, 76, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 3, 17, 8, 18, 8, 19, 2, 0, 26, 0, 61, 75, -1, 31, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 77, 7, 70, 8, 78, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 1, 16, 1, 17, 8, 19, 2, 62, 6, 63, 2, 64, 2, 65, 2, 66, 6, 67, 3, 68, 3, 32, 79, 36, 73, 69, 73, 70, 3, 71, 3, 72, 74, 0, 26, 0, 74, 76, -1, 19, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 25, 80, 7, 70, 8, 81, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 3, 17, 8, 18, 8, 19, 2, 0, 0, 0, 78, 77, -1, 5, 2, 0, 79, 19, 80, 1, 81, 1, 82, 2, 0, 31, 0, 84, 83, -1, 20, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 24, 82, 25, 82, 7, 83, 8, 84, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 18, 8, 19, 2, 0, 32, 0, 86, 85, -1, 19, 2, 0, 3, 1, 4, 2, 5, 2, 6, 3, 87, 85, 9, 6, 10, 7, 88, 86, 89, 1, 90, 85, 91, 3, 92, 3, 93, 19, 94, 19, 95, 73, 96, 87, 97, 3, 98, 88, 0, 0, 0, 100, 99, -1, 28, 2, 0, 3, 3, 4, 2, 5, 2, 6, 3, 24, 89, 25, 90, 7, 68, 8, 40, 9, 6, 10, 7, 11, 0, 12, 0, 13, 0, 14, 0, 15, 3, 16, 1, 17, 8, 19, 2, 62, 6, 63, 91, 64, 2, 65, 6, 66, 2, 67, 3, 68, 3, 101, 73, 102, 3, 0 </int_array>
 			<string> "conns" </string>
-			<int_array  len="12"> 				30, 0, 103, 102, 2, 0, 33, 0, 105, 104, 2, 0 </int_array>
+			<int_array  len="12"> 				31, 0, 104, 103, 2, 0, 34, 0, 106, 105, 2, 0 </int_array>
 		</dictionary>
 
 	</main_resource>
diff --git a/scene/animation/tween.cpp b/scene/animation/tween.cpp
index 4acf509283..799b1d19c9 100644
--- a/scene/animation/tween.cpp
+++ b/scene/animation/tween.cpp
@@ -123,23 +123,24 @@ void Tween::_bind_methods() {
 	ObjectTypeDB::bind_method(_MD("get_tween_process_mode"),&Tween::get_tween_process_mode);
 
 	ObjectTypeDB::bind_method(_MD("start"),&Tween::start );
-	ObjectTypeDB::bind_method(_MD("reset","object","key"),&Tween::reset );
+	ObjectTypeDB::bind_method(_MD("reset","node","key"),&Tween::reset );
 	ObjectTypeDB::bind_method(_MD("reset_all"),&Tween::reset_all );
-	ObjectTypeDB::bind_method(_MD("stop","object","key"),&Tween::stop );
+	ObjectTypeDB::bind_method(_MD("stop","node","key"),&Tween::stop );
 	ObjectTypeDB::bind_method(_MD("stop_all"),&Tween::stop_all );
-	ObjectTypeDB::bind_method(_MD("resume","object","key"),&Tween::resume );
+	ObjectTypeDB::bind_method(_MD("resume","node","key"),&Tween::resume );
 	ObjectTypeDB::bind_method(_MD("resume_all"),&Tween::resume_all );
-	ObjectTypeDB::bind_method(_MD("remove","object","key"),&Tween::remove );
+	ObjectTypeDB::bind_method(_MD("remove","node","key"),&Tween::remove );
 	ObjectTypeDB::bind_method(_MD("remove_all"),&Tween::remove_all );
 	ObjectTypeDB::bind_method(_MD("seek"),&Tween::seek );
 	ObjectTypeDB::bind_method(_MD("get_runtime"),&Tween::get_runtime );
 
-	ObjectTypeDB::bind_method(_MD("interpolate_property","object","property","initial_val","final_val","times_in_sec","trans_type","ease_type","delay"),&Tween::interpolate_property, DEFVAL(0) );
-	ObjectTypeDB::bind_method(_MD("interpolate_method","object","method","initial_val","final_val","times_in_sec","trans_type","ease_type","delay"),&Tween::interpolate_method, DEFVAL(0) );
+	ObjectTypeDB::bind_method(_MD("interpolate_property","node","property","initial_val","final_val","times_in_sec","trans_type","ease_type","delay"),&Tween::interpolate_property, DEFVAL(0) );
+	ObjectTypeDB::bind_method(_MD("interpolate_method","node","method","initial_val","final_val","times_in_sec","trans_type","ease_type","delay"),&Tween::interpolate_method, DEFVAL(0) );
+	ObjectTypeDB::bind_method(_MD("interpolate_callback","node","callback","times_in_sec","args"),&Tween::interpolate_callback, DEFVAL(Variant()) );
 
-	ADD_SIGNAL( MethodInfo("tween_start", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key")) );
-	ADD_SIGNAL( MethodInfo("tween_step", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key"), PropertyInfo( Variant::REAL,"elapsed"), PropertyInfo( Variant::OBJECT,"value")) );
-	ADD_SIGNAL( MethodInfo("tween_complete", PropertyInfo( Variant::OBJECT,"object"), PropertyInfo( Variant::STRING,"key")) );
+	ADD_SIGNAL( MethodInfo("tween_start", PropertyInfo( Variant::OBJECT,"node"), PropertyInfo( Variant::STRING,"key")) );
+	ADD_SIGNAL( MethodInfo("tween_step", PropertyInfo( Variant::OBJECT,"node"), PropertyInfo( Variant::STRING,"key"), PropertyInfo( Variant::REAL,"elapsed"), PropertyInfo( Variant::OBJECT,"value")) );
+	ADD_SIGNAL( MethodInfo("tween_complete", PropertyInfo( Variant::OBJECT,"node"), PropertyInfo( Variant::STRING,"key")) );
 
 	ADD_PROPERTY( PropertyInfo( Variant::INT, "playback/process_mode", PROPERTY_HINT_ENUM, "Fixed,Idle"), _SCS("set_tween_process_mode"), _SCS("get_tween_process_mode"));
 	//ADD_PROPERTY( PropertyInfo( Variant::BOOL, "activate"), _SCS("set_active"), _SCS("is_active"));
@@ -318,25 +319,32 @@ Variant Tween::_run_equation(InterpolateData& p_data) {
 
 bool Tween::_apply_tween_value(InterpolateData& p_data, Variant& value) {
 
-	Variant& object = p_data.object;
+	Object *object = get_node(p_data.path);
+	ERR_FAIL_COND_V(object == NULL, false);
 
-	if(p_data.is_method) {
+	switch(p_data.type) {
 
-		Variant *arg[1] = { &value };
-
-		Variant::CallError error;
-		object.call(p_data.key, (const Variant **) arg, 1, error);
-		if(error.error == Variant::CallError::CALL_OK)
-			return true;
+		case INTER_PROPERTY:
+			{
+				bool valid = false;
+				object->set(p_data.key,value, &valid);
+				return valid;
+			}
 
-		return false;
+		case INTER_METHOD:
+			{
+				Variant *arg[1] = { &value };
 
-	} else {
+				Variant::CallError error;
+				object->call(p_data.key, (const Variant **) arg, 1, error);
+				if(error.error == Variant::CallError::CALL_OK)
+					return true;
+				return false;
+			}
 
-		bool valid = false;
-		object.set(p_data.key,value, &valid);
-		return valid;
-	}
+		case INTER_CALLBACK:
+			break;
+	};
 	return true;
 }
 
@@ -346,25 +354,40 @@ void Tween::_tween_process(float p_delta) {
 		return;
 	p_delta *= speed_scale;
 
+	// if repeat and all interpolates was finished then reset all interpolates
+	if(repeat) {
+		bool all_finished = true;
+
+		for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
+
+			InterpolateData& data = E->get();
+
+			if(!data.finish) {
+				all_finished = false;
+				break;
+			}
+		}
+
+		if(all_finished)
+			reset_all();
+	}
+
 	for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
 
 		InterpolateData& data = E->get();
-		if(!data.active)
+		if(!data.active || data.finish)
 			continue;
 
-		if(data.finish) {
-			if(!repeat)
-				continue;
-			data.elapsed = 0;
-			data.finish = false;
-		}
+		Object *object = get_node(data.path);
+		if(object == NULL)
+			continue;
 
 		bool prev_delaying = data.elapsed <= data.delay;
 		data.elapsed += p_delta;
 		if(data.elapsed < data.delay)
 			continue;
 		else if(prev_delaying)
-			emit_signal("tween_start",data.object,data.key);
+			emit_signal("tween_start",object,data.key);
 
 		if(data.elapsed > (data.delay + data.times_in_sec)) {
 
@@ -372,13 +395,29 @@ void Tween::_tween_process(float p_delta) {
 			data.finish = true;
 		}
 
+		switch(data.type)
+		{
+		case INTER_PROPERTY:
+		case INTER_METHOD:
+			break;
+		case INTER_CALLBACK:
+			if(data.finish) {
+
+				Variant *arg[1] = { &data.args };
+
+				Variant::CallError error;
+				object->call(data.key, (const Variant **) arg, 1, error);
+			}
+			continue;
+		}
+
 		Variant result = _run_equation(data);
-		emit_signal("tween_step",data.object,data.key,data.elapsed,result);
+		emit_signal("tween_step",object,data.key,data.elapsed,result);
 
 		_apply_tween_value(data, result);
 
 		if(data.finish)
-			emit_signal("tween_complete",data.object,data.key);
+			emit_signal("tween_complete",object,data.key);
 	}
 }
 
@@ -455,12 +494,16 @@ bool Tween::start() {
 	return true;
 }
 
-bool Tween::reset(Variant p_object, String p_key) {
+bool Tween::reset(Node *p_node, String p_key) {
 
 	for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
 
 		InterpolateData& data = E->get();
-		if(data.object == p_object && data.key == p_key) {
+		Node *node = get_node(data.path);
+		if(node == NULL)
+			continue;
+
+		if(node == p_node && data.key == p_key) {
 
 			data.elapsed = 0;
 			data.finish = false;
@@ -484,12 +527,15 @@ bool Tween::reset_all() {
 	return true;
 }
 
-bool Tween::stop(Variant p_object, String p_key) {
+bool Tween::stop(Node *p_node, String p_key) {
 
 	for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
 
 		InterpolateData& data = E->get();
-		if(data.object == p_object && data.key == p_key)
+		Node *node = get_node(data.path);
+		if(node == NULL)
+			continue;
+		if(node == p_node && data.key == p_key)
 			data.active = false;
 	}
 	return true;
@@ -508,7 +554,7 @@ bool Tween::stop_all() {
 	return true;
 }
 
-bool Tween::resume(Variant p_object, String p_key) {
+bool Tween::resume(Node *p_node, String p_key) {
 
 	set_active(true);
 	_set_process(true);
@@ -516,7 +562,10 @@ bool Tween::resume(Variant p_object, String p_key) {
 	for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
 
 		InterpolateData& data = E->get();
-		if(data.object == p_object && data.key == p_key)
+		Node *node = get_node(data.path);
+		if(node == NULL)
+			continue;
+		if(node == p_node && data.key == p_key)
 			data.active = true;
 	}
 	return true;
@@ -535,13 +584,15 @@ bool Tween::resume_all() {
 	return true;
 }
 
-bool Tween::remove(Variant p_object, String p_key) {
+bool Tween::remove(Node *p_node, String p_key) {
 
 	for(List<InterpolateData>::Element *E=interpolates.front();E;E=E->next()) {
 
 		InterpolateData& data = E->get();
-		if(data.object == p_object && data.key == p_key) {
-
+		Node *node = get_node(data.path);
+		if(node == NULL)
+			continue;
+		if(node == p_node && data.key == p_key) {
 			interpolates.erase(E);
 			return true;
 		}
@@ -569,6 +620,15 @@ bool Tween::seek(real_t p_time) {
 		else if(data.elapsed > (data.delay + data.times_in_sec))
 			data.elapsed = (data.delay + data.times_in_sec);
 
+		switch(data.type)
+		{
+		case INTER_PROPERTY:
+		case INTER_METHOD:
+			break;
+		case INTER_CALLBACK:
+			continue;
+		}
+
 		Variant result = _run_equation(data);
 
 		_apply_tween_value(data, result);
@@ -690,7 +750,7 @@ bool Tween::_calc_delta_val(InterpolateData& p_data) {
 	return true;
 }
 
-bool Tween::interpolate_property(Variant p_object
+bool Tween::interpolate_property(Node *p_node
 	, String p_property
 	, Variant p_initial_val
 	, Variant p_final_val
@@ -703,7 +763,7 @@ bool Tween::interpolate_property(Variant p_object
 	if(p_initial_val.get_type() == Variant::INT) p_initial_val = p_initial_val.operator real_t();
 	if(p_final_val.get_type() == Variant::INT) p_final_val = p_final_val.operator real_t();
 
-	ERR_FAIL_COND_V(p_object.get_type() != Variant::OBJECT, false);
+	ERR_FAIL_COND_V(p_node == NULL, false);
 	ERR_FAIL_COND_V(p_initial_val.get_type() != p_final_val.get_type(), false);
 	ERR_FAIL_COND_V(p_times_in_sec <= 0, false);
 	ERR_FAIL_COND_V(p_trans_type < 0 || p_trans_type >= TRANS_COUNT, false);
@@ -711,9 +771,8 @@ bool Tween::interpolate_property(Variant p_object
 	ERR_FAIL_COND_V(p_delay < 0, false);
 
 	bool prop_found = false;
-	Object *obj = (Object *) p_object;
 	List<PropertyInfo> props;
-	obj->get_property_list(&props);
+	p_node->get_property_list(&props);
 	for(List<PropertyInfo>::Element *E=props.front();E;E=E->next()) {
 
 		PropertyInfo& prop=E->get();
@@ -727,11 +786,11 @@ bool Tween::interpolate_property(Variant p_object
 
 	InterpolateData data;
 	data.active = true;
-	data.is_method = false;
+	data.type = INTER_PROPERTY;
 	data.finish = false;
 	data.elapsed = 0;
 
-	data.object = p_object;
+	data.path = p_node->get_path();
 	data.key = p_property;
 	data.initial_val = p_initial_val;
 	data.final_val = p_final_val;
@@ -747,7 +806,7 @@ bool Tween::interpolate_property(Variant p_object
 	return true;
 }
 
-bool Tween::interpolate_method(Variant p_object
+bool Tween::interpolate_method(Node *p_node
 	, String p_method
 	, Variant p_initial_val
 	, Variant p_final_val
@@ -760,23 +819,22 @@ bool Tween::interpolate_method(Variant p_object
 	if(p_initial_val.get_type() == Variant::INT) p_initial_val = p_initial_val.operator real_t();
 	if(p_final_val.get_type() == Variant::INT) p_final_val = p_final_val.operator real_t();
 
-	ERR_FAIL_COND_V(p_object.get_type() != Variant::OBJECT, false);
+	ERR_FAIL_COND_V(p_node == NULL, false);
 	ERR_FAIL_COND_V(p_initial_val.get_type() != p_final_val.get_type(), false);
 	ERR_FAIL_COND_V(p_times_in_sec <= 0, false);
 	ERR_FAIL_COND_V(p_trans_type < 0 || p_trans_type >= TRANS_COUNT, false);
 	ERR_FAIL_COND_V(p_ease_type < 0 || p_ease_type >= EASE_COUNT, false);
 	ERR_FAIL_COND_V(p_delay < 0, false);
 
-	Object *obj = (Object *) p_object;
-	ERR_FAIL_COND_V(!obj->has_method(p_method), false);
+	ERR_FAIL_COND_V(!p_node->has_method(p_method), false);
 
 	InterpolateData data;
 	data.active = true;
-	data.is_method = true;
+	data.type = INTER_METHOD;
 	data.finish = false;
 	data.elapsed = 0;
 
-	data.object = p_object;
+	data.path = p_node->get_path();
 	data.key = p_method;
 	data.initial_val = p_initial_val;
 	data.final_val = p_final_val;
@@ -792,6 +850,34 @@ bool Tween::interpolate_method(Variant p_object
 	return true;
 }
 
+bool Tween::interpolate_callback(Node *p_node
+	, String p_callback
+	, real_t p_times_in_sec
+	, Variant p_args
+) {
+
+	ERR_FAIL_COND_V(p_node == NULL, false);
+	ERR_FAIL_COND_V(p_times_in_sec < 0, false);
+
+	ERR_FAIL_COND_V(!p_node->has_method(p_callback), false);
+
+	InterpolateData data;
+	data.active = true;
+	data.type = INTER_CALLBACK;
+	data.finish = false;
+	data.elapsed = 0;
+
+	data.path = p_node->get_path();
+	data.key = p_callback;
+	data.times_in_sec = p_times_in_sec;
+	data.delay = 0;
+	data.args = p_args;
+
+	interpolates.push_back(data);
+	return true;
+}
+
+
 Tween::Tween() {
 
 	//String autoplay;
diff --git a/scene/animation/tween.h b/scene/animation/tween.h
index 78df7d9c93..8718528ad6 100644
--- a/scene/animation/tween.h
+++ b/scene/animation/tween.h
@@ -68,14 +68,20 @@ public:
     };
 
 private:
+	enum InterpolateType {
+
+		INTER_PROPERTY,
+		INTER_METHOD,
+		INTER_CALLBACK,
+	};
 
 	struct InterpolateData {
 		bool active;
-		bool is_method;
+		InterpolateType type;
 		bool finish;
 		real_t elapsed;
 
-		Variant object;
+		NodePath path;
 		String key;
 		Variant initial_val;
 		Variant delta_val;
@@ -84,6 +90,7 @@ private:
 		TransitionType trans_type;
 		EaseType ease_type;
 		real_t delay;
+		Variant args;
 	};
 
 	String autoplay;
@@ -130,19 +137,19 @@ public:
 	float get_speed() const;
 
 	bool start();
-	bool reset(Variant p_object, String p_key);
+	bool reset(Node *p_node, String p_key);
 	bool reset_all();
-	bool stop(Variant p_object, String p_key);
+	bool stop(Node *p_node, String p_key);
 	bool stop_all();
-	bool resume(Variant p_object, String p_key);
+	bool resume(Node *p_node, String p_key);
 	bool resume_all();
-	bool remove(Variant p_object, String p_key);
+	bool remove(Node *p_node, String p_key);
 	bool remove_all();
 
 	bool seek(real_t p_time);
 	real_t get_runtime();
 
-	bool interpolate_property(Variant p_object
+	bool interpolate_property(Node *p_node
 		, String p_property
 		, Variant p_initial_val
 		, Variant p_final_val
@@ -152,7 +159,7 @@ public:
 		, real_t p_delay = 0
 	);
 
-	bool interpolate_method(Variant p_object
+	bool interpolate_method(Node *p_node
 		, String p_method
 		, Variant p_initial_val
 		, Variant p_final_val
@@ -162,6 +169,12 @@ public:
 		, real_t p_delay = 0
 	);
 
+	bool interpolate_callback(Node *p_node
+		, String p_callback
+		, real_t p_times_in_sec
+		, Variant p_args = Variant()
+	);
+
 	Tween();
 	~Tween();
 };