1 files changed, 109 insertions, 0 deletions
diff --git a/scene/2d/visibility_notifier_2d.h b/scene/2d/visibility_notifier_2d.h
new file mode 100644
index 000000000..cdf52ecb2
--- /dev/null
+++ b/scene/2d/visibility_notifier_2d.h
@@ -0,0 +1,109 @@
+/*************************************************************************/
+/*  visibility_notifier_2d.h                                             */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 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.                */
+/*************************************************************************/
+#ifndef VISIBILITY_NOTIFIER_2D_H
+#define VISIBILITY_NOTIFIER_2D_H
+
+#include "scene/2d/node_2d.h"
+
+class Viewport;
+class VisibilityNotifier2D : public Node2D {
+
+	OBJ_TYPE(VisibilityNotifier2D,Node2D);
+
+	Set<Viewport*> viewports;
+
+	Rect2 rect;
+
+protected:
+friend class SpatialIndexer2D;
+
+	void _enter_viewport(Viewport* p_viewport);
+	void _exit_viewport(Viewport* p_viewport);
+
+
+	virtual void _screen_enter() {}
+	virtual void _screen_exit() {}
+
+	void _notification(int p_what);
+	static void _bind_methods();
+public:
+
+	void set_rect(const Rect2& p_rect);
+	Rect2 get_rect() const;
+
+	bool is_on_screen() const;
+
+	virtual Rect2 get_item_rect() const;
+
+	VisibilityNotifier2D();
+};
+
+
+class VisibilityEnabler2D : public VisibilityNotifier2D {
+
+	OBJ_TYPE(VisibilityEnabler2D,VisibilityNotifier2D);
+public:
+
+	enum Enabler {
+		ENABLER_PAUSE_ANIMATIONS,
+		ENABLER_FREEZE_BODIES,
+		ENABLER_MAX
+	};
+
+protected:
+
+	virtual void _screen_enter();
+	virtual void _screen_exit();
+
+	bool visible;
+
+	void _find_nodes(Node* p_node);
+
+	Map<Node*,Variant> nodes;
+	void _node_removed(Node* p_node);
+	bool enabler[ENABLER_MAX];
+
+	void _change_node_state(Node* p_node,bool p_enabled);
+
+	void _notification(int p_what);
+	static void _bind_methods();
+
+public:
+
+	void set_enabler(Enabler p_enabler,bool p_enable);
+	bool is_enabler_enabled(Enabler p_enabler) const;
+
+	VisibilityEnabler2D();
+
+};
+
+VARIANT_ENUM_CAST(VisibilityEnabler2D::Enabler);
+
+
+#endif // VISIBILITY_NOTIFIER_2D_H