Merge pull request #5692 from kubecz3k/remoteTransform

Remote transform node (for 3d)

3 files changed, 164 insertions, 0 deletions

diff --git a/scene/3d/remote_transform.cpp b/scene/3d/remote_transform.cpp
new file mode 100644
index 0000000000..d43870417a
--- /dev/null
+++ b/scene/3d/remote_transform.cpp
@@ -0,0 +1,132 @@
+
+/*************************************************************************/
+/*  remote_transform.cpp                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "remote_transform.h"
+
+void RemoteTransform::_update_cache() {
+	cache=0;
+	if (has_node(remote_node)) {
+		Node *node = get_node(remote_node);
+		if (!node || this==node || node->is_a_parent_of(this) || this->is_a_parent_of(node)) {
+			return;
+		}
+
+		cache=node->get_instance_ID();
+	}
+}
+
+void RemoteTransform::_update_remote() {
+
+
+	if (!is_inside_tree())
+		return;
+
+	if (!cache)
+		return;
+
+	Object *obj = ObjectDB::get_instance(cache);
+	if (!obj)
+		return;
+
+	Spatial *n = obj->cast_to<Spatial>();
+	if (!n)
+		return;
+
+	if (!n->is_inside_tree())
+		return;
+
+	//todo make faster
+	n->set_global_transform(get_global_transform());
+
+}
+
+void RemoteTransform::_notification(int p_what) {
+
+	switch(p_what) {
+
+		case NOTIFICATION_READY: {
+
+			_update_cache();
+
+		} break;
+		case NOTIFICATION_TRANSFORM_CHANGED: {
+			if (!is_inside_tree())
+				break;
+
+			if (cache) {
+
+				_update_remote();
+
+			}
+
+		} break;
+
+	}
+}
+
+
+void RemoteTransform::set_remote_node(const NodePath& p_remote_node) {
+
+	remote_node=p_remote_node;
+	if (is_inside_tree())
+		_update_cache();
+
+	update_configuration_warning();
+}
+
+NodePath RemoteTransform::get_remote_node() const{
+
+	return remote_node;
+}
+
+
+String RemoteTransform::get_configuration_warning() const {
+
+	if (!has_node(remote_node) || !get_node(remote_node) || !get_node(remote_node)->cast_to<Spatial>()) {
+		return TTR("Path property must point to a valid Spatial node to work.");
+	}
+
+	return String();
+}
+
+void RemoteTransform::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("set_remote_node","path"),&RemoteTransform::set_remote_node);
+	ObjectTypeDB::bind_method(_MD("get_remote_node"),&RemoteTransform::get_remote_node);
+
+	ADD_PROPERTY( PropertyInfo(Variant::NODE_PATH,"remote_path"),_SCS("set_remote_node"),_SCS("get_remote_node"));
+}
+
+RemoteTransform::RemoteTransform() {
+
+	cache=0;
+
+}
+
diff --git a/scene/3d/remote_transform.h b/scene/3d/remote_transform.h
new file mode 100644
index 0000000000..78f0fec1e9
--- /dev/null
+++ b/scene/3d/remote_transform.h
@@ -0,0 +1,30 @@
+#ifndef REMOTETRANSFORM_H
+#define REMOTETRANSFORM_H
+
+#include "scene/3d/spatial.h"
+
+class RemoteTransform : public Spatial
+{
+	OBJ_TYPE(RemoteTransform,Spatial);
+	
+	NodePath remote_node;
+
+	ObjectID cache;
+
+	void _update_remote();
+	void _update_cache(); 
+ 
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+public:
+	void set_remote_node(const NodePath& p_remote_node);
+	NodePath get_remote_node() const;
+	
+	virtual String get_configuration_warning() const;
+	
+	RemoteTransform();
+
+};
+
+#endif // REMOTETRANSFORM_H
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index be2c12d63a..d22c3bad14 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -182,6 +182,7 @@
 
 
 #include "scene/3d/spatial.h"
+#include "scene/3d/remote_transform.h"
 #include "scene/3d/skeleton.h"
 #include "scene/3d/bone_attachment.h"
 #include "scene/3d/room_instance.h"
@@ -453,6 +454,7 @@ void register_scene_types() {
 	ObjectTypeDB::register_type<BakedLightInstance>();
 	ObjectTypeDB::register_type<BakedLightSampler>();
 	ObjectTypeDB::register_type<WorldEnvironment>();
+	ObjectTypeDB::register_type<RemoteTransform>();
 
 	ObjectTypeDB::register_virtual_type<Joint>();
 	ObjectTypeDB::register_type<PinJoint>();