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/*************************************************************************/
/* navigation_polygon_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* 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 "navigation_polygon_editor_plugin.h"
#include "canvas_item_editor_plugin.h"
#include "editor/editor_settings.h"
#include "os/file_access.h"
void NavigationPolygonEditor::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_READY: {
button_create->set_icon(get_icon("Edit", "EditorIcons"));
button_edit->set_icon(get_icon("MovePoint", "EditorIcons"));
button_edit->set_pressed(true);
get_tree()->connect("node_removed", this, "_node_removed");
create_nav->connect("confirmed", this, "_create_nav");
} break;
case NOTIFICATION_FIXED_PROCESS: {
} break;
}
}
void NavigationPolygonEditor::_node_removed(Node *p_node) {
if (p_node == node) {
node = NULL;
hide();
canvas_item_editor->get_viewport_control()->update();
}
}
void NavigationPolygonEditor::_create_nav() {
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);
}
void NavigationPolygonEditor::_menu_option(int p_option) {
switch (p_option) {
case MODE_CREATE: {
mode = MODE_CREATE;
button_create->set_pressed(true);
button_edit->set_pressed(false);
} break;
case MODE_EDIT: {
mode = MODE_EDIT;
button_create->set_pressed(false);
button_edit->set_pressed(true);
} break;
}
}
void NavigationPolygonEditor::_wip_close() {
if (wip.size() >= 3) {
undo_redo->create_action(TTR("Create Poly"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "remove_outline", node->get_navigation_polygon()->get_outline_count());
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "add_outline", wip);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->commit_action();
mode = MODE_EDIT;
button_edit->set_pressed(true);
button_create->set_pressed(false);
}
wip.clear();
wip_active = false;
edited_point = -1;
}
bool NavigationPolygonEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
if (!node)
return false;
if (node->get_navigation_polygon().is_null()) {
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid() && mb->get_button_index() == 1 && mb->is_pressed()) {
create_nav->set_text("No NavigationPolygon resource on this node.\nCreate and assign one?");
create_nav->popup_centered_minsize();
}
return (mb.is_valid() && mb->get_button_index() == 1);
}
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid()) {
Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = mb->get_position();
Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
cpoint = canvas_item_editor->snap_point(cpoint);
cpoint = node->get_global_transform().affine_inverse().xform(cpoint);
//first check if a point is to be added (segment split)
real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8);
switch (mode) {
case MODE_CREATE: {
if (mb->get_button_index() == BUTTON_LEFT && mb->is_pressed()) {
if (!wip_active) {
wip.clear();
wip.push_back(cpoint);
wip_active = true;
edited_point_pos = cpoint;
edited_outline = -1;
canvas_item_editor->get_viewport_control()->update();
edited_point = 1;
return true;
} else {
if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_threshold) {
//wip closed
_wip_close();
return true;
} else {
wip.push_back(cpoint);
edited_point = wip.size();
canvas_item_editor->get_viewport_control()->update();
return true;
//add wip point
}
}
} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && wip_active) {
_wip_close();
}
} break;
case MODE_EDIT: {
if (mb->get_button_index() == BUTTON_LEFT) {
if (mb->is_pressed()) {
if (mb->get_control()) {
//search edges
int closest_outline = -1;
int closest_idx = -1;
Vector2 closest_pos;
real_t closest_dist = 1e10;
for (int j = 0; j < node->get_navigation_polygon()->get_outline_count(); j++) {
PoolVector<Vector2> points = node->get_navigation_polygon()->get_outline(j);
int pc = points.size();
PoolVector<Vector2>::Read poly = points.read();
for (int i = 0; i < pc; i++) {
Vector2 points[2] = { xform.xform(poly[i]),
xform.xform(poly[(i + 1) % pc]) };
Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, points);
if (cp.distance_squared_to(points[0]) < CMP_EPSILON2 || cp.distance_squared_to(points[1]) < CMP_EPSILON2)
continue; //not valid to reuse point
real_t d = cp.distance_to(gpoint);
if (d < closest_dist && d < grab_threshold) {
closest_dist = d;
closest_outline = j;
closest_pos = cp;
closest_idx = i;
}
}
}
if (closest_idx >= 0) {
pre_move_edit = node->get_navigation_polygon()->get_outline(closest_outline);
PoolVector<Point2> poly = pre_move_edit;
poly.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos));
edited_point = closest_idx + 1;
edited_outline = closest_outline;
edited_point_pos = xform.affine_inverse().xform(closest_pos);
node->get_navigation_polygon()->set_outline(closest_outline, poly);
canvas_item_editor->get_viewport_control()->update();
return true;
}
} else {
//look for points to move
int closest_outline = -1;
int closest_idx = -1;
Vector2 closest_pos;
real_t closest_dist = 1e10;
for (int j = 0; j < node->get_navigation_polygon()->get_outline_count(); j++) {
PoolVector<Vector2> points = node->get_navigation_polygon()->get_outline(j);
int pc = points.size();
PoolVector<Vector2>::Read poly = points.read();
for (int i = 0; i < pc; i++) {
Vector2 cp = xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d < closest_dist && d < grab_threshold) {
closest_dist = d;
closest_pos = cp;
closest_outline = j;
closest_idx = i;
}
}
}
if (closest_idx >= 0) {
pre_move_edit = node->get_navigation_polygon()->get_outline(closest_outline);
edited_point = closest_idx;
edited_outline = closest_outline;
edited_point_pos = xform.affine_inverse().xform(closest_pos);
canvas_item_editor->get_viewport_control()->update();
return true;
}
}
} else {
if (edited_point != -1) {
//apply
PoolVector<Vector2> poly = node->get_navigation_polygon()->get_outline(edited_outline);
ERR_FAIL_INDEX_V(edited_point, poly.size(), false);
poly.set(edited_point, edited_point_pos);
undo_redo->create_action(TTR("Edit Poly"));
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "set_outline", edited_outline, poly);
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "set_outline", edited_outline, pre_move_edit);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->commit_action();
edited_point = -1;
return true;
}
}
} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && edited_point == -1) {
int closest_outline = -1;
int closest_idx = -1;
Vector2 closest_pos;
real_t closest_dist = 1e10;
for (int j = 0; j < node->get_navigation_polygon()->get_outline_count(); j++) {
PoolVector<Vector2> points = node->get_navigation_polygon()->get_outline(j);
int pc = points.size();
PoolVector<Vector2>::Read poly = points.read();
for (int i = 0; i < pc; i++) {
Vector2 cp = xform.xform(poly[i]);
real_t d = cp.distance_to(gpoint);
if (d < closest_dist && d < grab_threshold) {
closest_dist = d;
closest_pos = cp;
closest_outline = j;
closest_idx = i;
}
}
}
if (closest_idx >= 0) {
PoolVector<Vector2> poly = node->get_navigation_polygon()->get_outline(closest_outline);
if (poly.size() > 3) {
undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "set_outline", closest_outline, poly);
poly.remove(closest_idx);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "set_outline", closest_outline, poly);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->commit_action();
} else {
undo_redo->create_action(TTR("Remove Poly And Point"));
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "add_outline_at_index", poly, closest_outline);
poly.remove(closest_idx);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "remove_outline", closest_outline);
undo_redo->add_do_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_undo_method(node->get_navigation_polygon().ptr(), "make_polygons_from_outlines");
undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
undo_redo->commit_action();
}
return true;
}
}
} break;
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (edited_point != -1 && (wip_active || mm->get_button_mask() & BUTTON_MASK_LEFT)) {
Vector2 gpoint = mm->get_position();
Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
cpoint = canvas_item_editor->snap_point(cpoint);
edited_point_pos = node->get_global_transform().affine_inverse().xform(cpoint);
canvas_item_editor->get_viewport_control()->update();
}
}
return false;
}
void NavigationPolygonEditor::_canvas_draw() {
if (!node)
return;
Control *vpc = canvas_item_editor->get_viewport_control();
if (node->get_navigation_polygon().is_null())
return;
Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
for (int j = -1; j < node->get_navigation_polygon()->get_outline_count(); j++) {
Vector<Vector2> poly;
if (wip_active && j == edited_outline) {
poly = wip;
} else {
if (j == -1)
continue;
poly = Variant(node->get_navigation_polygon()->get_outline(j));
}
for (int i = 0; i < poly.size(); i++) {
Vector2 p, p2;
p = (j == edited_outline && i == edited_point) ? edited_point_pos : poly[i];
if (j == edited_outline && ((wip_active && i == poly.size() - 1) || (((i + 1) % poly.size()) == edited_point)))
p2 = edited_point_pos;
else
p2 = poly[(i + 1) % poly.size()];
Vector2 point = xform.xform(p);
Vector2 next_point = xform.xform(p2);
Color col = Color(1, 0.3, 0.1, 0.8);
vpc->draw_line(point, next_point, col, 2);
vpc->draw_texture(handle, point - handle->get_size() * 0.5);
}
}
}
void NavigationPolygonEditor::edit(Node *p_collision_polygon) {
if (!canvas_item_editor) {
canvas_item_editor = CanvasItemEditor::get_singleton();
}
if (p_collision_polygon) {
node = Object::cast_to<NavigationPolygonInstance>(p_collision_polygon);
//Enable the pencil tool if the polygon is empty
if (!node->get_navigation_polygon().is_null()) {
if (node->get_navigation_polygon()->get_polygon_count() == 0)
_menu_option(MODE_CREATE);
}
if (!canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
canvas_item_editor->get_viewport_control()->connect("draw", this, "_canvas_draw");
wip.clear();
wip_active = false;
edited_point = -1;
canvas_item_editor->get_viewport_control()->update();
} else {
node = NULL;
if (canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
canvas_item_editor->get_viewport_control()->disconnect("draw", this, "_canvas_draw");
}
}
void NavigationPolygonEditor::_bind_methods() {
ClassDB::bind_method(D_METHOD("_menu_option"), &NavigationPolygonEditor::_menu_option);
ClassDB::bind_method(D_METHOD("_canvas_draw"), &NavigationPolygonEditor::_canvas_draw);
ClassDB::bind_method(D_METHOD("_node_removed"), &NavigationPolygonEditor::_node_removed);
ClassDB::bind_method(D_METHOD("_create_nav"), &NavigationPolygonEditor::_create_nav);
}
NavigationPolygonEditor::NavigationPolygonEditor(EditorNode *p_editor) {
node = NULL;
canvas_item_editor = NULL;
editor = p_editor;
undo_redo = editor->get_undo_redo();
add_child(memnew(VSeparator));
button_create = memnew(ToolButton);
add_child(button_create);
button_create->connect("pressed", this, "_menu_option", varray(MODE_CREATE));
button_create->set_toggle_mode(true);
button_create->set_tooltip(TTR("Create a new polygon from scratch."));
button_edit = memnew(ToolButton);
add_child(button_edit);
button_edit->connect("pressed", this, "_menu_option", varray(MODE_EDIT));
button_edit->set_toggle_mode(true);
button_edit->set_tooltip(TTR("Edit existing polygon:") + "\n" + TTR("LMB: Move Point.") + "\n" + TTR("Ctrl+LMB: Split Segment.") + "\n" + TTR("RMB: Erase Point."));
create_nav = memnew(ConfirmationDialog);
add_child(create_nav);
create_nav->get_ok()->set_text(TTR("Create"));
mode = MODE_EDIT;
wip_active = false;
edited_outline = -1;
}
void NavigationPolygonEditorPlugin::edit(Object *p_object) {
collision_polygon_editor->edit(Object::cast_to<Node>(p_object));
}
bool NavigationPolygonEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("NavigationPolygonInstance");
}
void NavigationPolygonEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
collision_polygon_editor->show();
} else {
collision_polygon_editor->hide();
collision_polygon_editor->edit(NULL);
}
}
NavigationPolygonEditorPlugin::NavigationPolygonEditorPlugin(EditorNode *p_node) {
editor = p_node;
collision_polygon_editor = memnew(NavigationPolygonEditor(p_node));
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(collision_polygon_editor);
collision_polygon_editor->hide();
}
NavigationPolygonEditorPlugin::~NavigationPolygonEditorPlugin() {
}
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