/*************************************************************************/
/*  collision_polygon_editor_plugin.h                                    */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
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#ifndef COLLISION_POLYGON_EDITOR_PLUGIN_H
#define COLLISION_POLYGON_EDITOR_PLUGIN_H

#include "editor/editor_node.h"
#include "editor/editor_plugin.h"
#include "scene/3d/collision_polygon_3d.h"
#include "scene/3d/immediate_geometry_3d.h"
#include "scene/3d/mesh_instance_3d.h"
#include "scene/gui/tool_button.h"

class CanvasItemEditor;

class Polygon3DEditor : public HBoxContainer {

	GDCLASS(Polygon3DEditor, HBoxContainer);

	UndoRedo *undo_redo;
	enum Mode {

		MODE_CREATE,
		MODE_EDIT,

	};

	Mode mode;

	ToolButton *button_create;
	ToolButton *button_edit;

	Ref<StandardMaterial3D> line_material;
	Ref<StandardMaterial3D> handle_material;

	EditorNode *editor;
	Panel *panel;
	Node3D *node;
	ImmediateGeometry3D *imgeom;
	MeshInstance3D *pointsm;
	Ref<ArrayMesh> m;

	MenuButton *options;

	int edited_point;
	Vector2 edited_point_pos;
	Vector<Vector2> pre_move_edit;
	Vector<Vector2> wip;
	bool wip_active;
	bool snap_ignore;

	float prev_depth;

	void _wip_close();
	void _polygon_draw();
	void _menu_option(int p_option);

	float _get_depth();

protected:
	void _notification(int p_what);
	void _node_removed(Node *p_node);
	static void _bind_methods();

public:
	virtual bool forward_spatial_gui_input(Camera3D *p_camera, const Ref<InputEvent> &p_event);
	void edit(Node *p_collision_polygon);
	Polygon3DEditor(EditorNode *p_editor);
	~Polygon3DEditor();
};

class Polygon3DEditorPlugin : public EditorPlugin {

	GDCLASS(Polygon3DEditorPlugin, EditorPlugin);

	Polygon3DEditor *collision_polygon_editor;
	EditorNode *editor;

public:
	virtual bool forward_spatial_gui_input(Camera3D *p_camera, const Ref<InputEvent> &p_event) { return collision_polygon_editor->forward_spatial_gui_input(p_camera, p_event); }

	virtual String get_name() const { return "Polygon3DEditor"; }
	bool has_main_screen() const { return false; }
	virtual void edit(Object *p_object);
	virtual bool handles(Object *p_object) const;
	virtual void make_visible(bool p_visible);

	Polygon3DEditorPlugin(EditorNode *p_node);
	~Polygon3DEditorPlugin();
};

#endif // COLLISION_POLYGON_EDITOR_PLUGIN_H