godot/editor/plugins/navigation_polygon_editor_plugin.cpp

/*************************************************************************/
/*  navigation_polygon_editor_plugin.cpp                                 */
/*************************************************************************/
/*                       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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#include "navigation_polygon_editor_plugin.h"

Ref<NavigationPolygon> NavigationPolygonEditor::_ensure_navpoly() const {

	Ref<NavigationPolygon> navpoly = node->get_navigation_polygon();
	if (!navpoly.is_valid()) {

		navpoly = Ref<NavigationPolygon>(memnew(NavigationPolygon));
		node->set_navigation_polygon(navpoly);
	}
	return navpoly;
}

Node2D *NavigationPolygonEditor::_get_node() const {

	return node;
}

void NavigationPolygonEditor::_set_node(Node *p_polygon) {

	node = Object::cast_to<NavigationRegion2D>(p_polygon);
}

int NavigationPolygonEditor::_get_polygon_count() const {

	Ref<NavigationPolygon> navpoly = node->get_navigation_polygon();
	if (navpoly.is_valid())
		return navpoly->get_outline_count();
	else
		return 0;
}

Variant NavigationPolygonEditor::_get_polygon(int p_idx) const {

	Ref<NavigationPolygon> navpoly = node->get_navigation_polygon();
	if (navpoly.is_valid())
		return navpoly->get_outline(p_idx);
	else
		return Variant(Vector<Vector2>());
}

void NavigationPolygonEditor::_set_polygon(int p_idx, const Variant &p_polygon) const {

	Ref<NavigationPolygon> navpoly = _ensure_navpoly();
	navpoly->set_outline(p_idx, p_polygon);
	navpoly->make_polygons_from_outlines();
}

void NavigationPolygonEditor::_action_add_polygon(const Variant &p_polygon) {

	Ref<NavigationPolygon> navpoly = _ensure_navpoly();
	undo_redo->add_do_method(navpoly.ptr(), "add_outline", p_polygon);
	undo_redo->add_undo_method(navpoly.ptr(), "remove_outline", navpoly->get_outline_count());
	undo_redo->add_do_method(navpoly.ptr(), "make_polygons_from_outlines");
	undo_redo->add_undo_method(navpoly.ptr(), "make_polygons_from_outlines");
}

void NavigationPolygonEditor::_action_remove_polygon(int p_idx) {

	Ref<NavigationPolygon> navpoly = _ensure_navpoly();
	undo_redo->add_do_method(navpoly.ptr(), "remove_outline", p_idx);
	undo_redo->add_undo_method(navpoly.ptr(), "add_outline_at_index", navpoly->get_outline(p_idx), p_idx);
	undo_redo->add_do_method(navpoly.ptr(), "make_polygons_from_outlines");
	undo_redo->add_undo_method(navpoly.ptr(), "make_polygons_from_outlines");
}

void NavigationPolygonEditor::_action_set_polygon(int p_idx, const Variant &p_previous, const Variant &p_polygon) {

	Ref<NavigationPolygon> navpoly = _ensure_navpoly();
	undo_redo->add_do_method(navpoly.ptr(), "set_outline", p_idx, p_polygon);
	undo_redo->add_undo_method(navpoly.ptr(), "set_outline", p_idx, p_previous);
	undo_redo->add_do_method(navpoly.ptr(), "make_polygons_from_outlines");
	undo_redo->add_undo_method(navpoly.ptr(), "make_polygons_from_outlines");
}

bool NavigationPolygonEditor::_has_resource() const {

	return node && node->get_navigation_polygon().is_valid();
}

void NavigationPolygonEditor::_create_resource() {

	if (!node)
		return;

	undo_redo->create_action(TTR("Create Navigation Polygon"));
	undo_redo->add_do_method(node, "set_navigation_polygon", Ref<NavigationPolygon>(memnew(NavigationPolygon)));
	undo_redo->add_undo_method(node, "set_navigation_polygon", Variant(REF()));
	undo_redo->commit_action();

	_menu_option(MODE_CREATE);
}

NavigationPolygonEditor::NavigationPolygonEditor(EditorNode *p_editor) :
		AbstractPolygon2DEditor(p_editor) {
	node = nullptr;
}

NavigationPolygonEditorPlugin::NavigationPolygonEditorPlugin(EditorNode *p_node) :
		AbstractPolygon2DEditorPlugin(p_node, memnew(NavigationPolygonEditor(p_node)), "NavigationRegion2D") {
}