/*************************************************************************/ /* polygon_3d_editor_plugin.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "polygon_3d_editor_plugin.h" #include "canvas_item_editor_plugin.h" #include "core/core_string_names.h" #include "core/input/input.h" #include "core/io/file_access.h" #include "core/math/geometry_2d.h" #include "core/os/keyboard.h" #include "editor/editor_node.h" #include "editor/editor_settings.h" #include "node_3d_editor_plugin.h" #include "scene/3d/camera_3d.h" void Polygon3DEditor::_notification(int p_what) { switch (p_what) { case NOTIFICATION_READY: { button_create->set_icon(get_theme_icon(SNAME("Edit"), SNAME("EditorIcons"))); button_edit->set_icon(get_theme_icon(SNAME("MovePoint"), SNAME("EditorIcons"))); button_edit->set_pressed(true); get_tree()->connect("node_removed", callable_mp(this, &Polygon3DEditor::_node_removed)); } break; case NOTIFICATION_PROCESS: { if (!node) { return; } if (_get_depth() != prev_depth) { _polygon_draw(); prev_depth = _get_depth(); } } break; } } void Polygon3DEditor::_node_removed(Node *p_node) { if (p_node == node) { node = nullptr; if (imgeom->get_parent() == p_node) { p_node->remove_child(imgeom); } hide(); set_process(false); } } void Polygon3DEditor::_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 Polygon3DEditor::_wip_close() { Object *obj = node_resource.is_valid() ? (Object *)node_resource.ptr() : node; ERR_FAIL_COND_MSG(!obj, "Edited object is not valid."); undo_redo->create_action(TTR("Create Polygon3D")); undo_redo->add_undo_method(obj, "set_polygon", obj->call("get_polygon")); undo_redo->add_do_method(obj, "set_polygon", wip); undo_redo->add_do_method(this, "_polygon_draw"); undo_redo->add_undo_method(this, "_polygon_draw"); wip.clear(); wip_active = false; mode = MODE_EDIT; button_edit->set_pressed(true); button_create->set_pressed(false); edited_point = -1; undo_redo->commit_action(); } EditorPlugin::AfterGUIInput Polygon3DEditor::forward_spatial_gui_input(Camera3D *p_camera, const Ref<InputEvent> &p_event) { if (!node) { return EditorPlugin::AFTER_GUI_INPUT_PASS; } Object *obj = node_resource.is_valid() ? (Object *)node_resource.ptr() : node; Transform3D gt = node->get_global_transform(); Transform3D gi = gt.affine_inverse(); float depth = _get_depth() * 0.5; Vector3 n = gt.basis.get_axis(2).normalized(); Plane p(n, gt.origin + n * depth); Ref<InputEventMouseButton> mb = p_event; if (mb.is_valid()) { Vector2 gpoint = mb->get_position(); Vector3 ray_from = p_camera->project_ray_origin(gpoint); Vector3 ray_dir = p_camera->project_ray_normal(gpoint); Vector3 spoint; if (!p.intersects_ray(ray_from, ray_dir, &spoint)) { return EditorPlugin::AFTER_GUI_INPUT_PASS; } spoint = gi.xform(spoint); Vector2 cpoint(spoint.x, spoint.y); //DO NOT snap here, it's confusing in 3D for adding points. //Let the snap happen when the point is being moved, instead. //cpoint = CanvasItemEditor::get_singleton()->snap_point(cpoint); PackedVector2Array poly = _get_polygon(); //first check if a point is to be added (segment split) real_t grab_threshold = EDITOR_GET("editors/polygon_editor/point_grab_radius"); switch (mode) { case MODE_CREATE: { if (mb->get_button_index() == MouseButton::LEFT && mb->is_pressed()) { if (!wip_active) { wip.clear(); wip.push_back(cpoint); wip_active = true; edited_point_pos = cpoint; snap_ignore = false; _polygon_draw(); edited_point = 1; return EditorPlugin::AFTER_GUI_INPUT_STOP; } else { if (wip.size() > 1 && p_camera->unproject_position(gt.xform(Vector3(wip[0].x, wip[0].y, depth))).distance_to(gpoint) < grab_threshold) { //wip closed _wip_close(); return EditorPlugin::AFTER_GUI_INPUT_STOP; } else { wip.push_back(cpoint); edited_point = wip.size(); snap_ignore = false; _polygon_draw(); return EditorPlugin::AFTER_GUI_INPUT_STOP; } } } else if (mb->get_button_index() == MouseButton::RIGHT && mb->is_pressed() && wip_active) { _wip_close(); } } break; case MODE_EDIT: { if (mb->get_button_index() == MouseButton::LEFT) { if (mb->is_pressed()) { if (mb->is_ctrl_pressed()) { if (poly.size() < 3) { undo_redo->create_action(TTR("Edit Poly")); undo_redo->add_undo_method(obj, "set_polygon", poly); poly.push_back(cpoint); undo_redo->add_do_method(obj, "set_polygon", poly); undo_redo->add_do_method(this, "_polygon_draw"); undo_redo->add_undo_method(this, "_polygon_draw"); undo_redo->commit_action(); return EditorPlugin::AFTER_GUI_INPUT_STOP; } //search edges int closest_idx = -1; Vector2 closest_pos; real_t closest_dist = 1e10; for (int i = 0; i < poly.size(); i++) { Vector2 points[2] = { p_camera->unproject_position(gt.xform(Vector3(poly[i].x, poly[i].y, depth))), p_camera->unproject_position(gt.xform(Vector3(poly[(i + 1) % poly.size()].x, poly[(i + 1) % poly.size()].y, depth))) }; Vector2 cp = Geometry2D::get_closest_point_to_segment(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_pos = cp; closest_idx = i; } } if (closest_idx >= 0) { pre_move_edit = poly; poly.insert(closest_idx + 1, cpoint); edited_point = closest_idx + 1; edited_point_pos = cpoint; _set_polygon(poly); _polygon_draw(); snap_ignore = true; return EditorPlugin::AFTER_GUI_INPUT_STOP; } } else { //look for points to move int closest_idx = -1; Vector2 closest_pos; real_t closest_dist = 1e10; for (int i = 0; i < poly.size(); i++) { Vector2 cp = p_camera->unproject_position(gt.xform(Vector3(poly[i].x, poly[i].y, depth))); real_t d = cp.distance_to(gpoint); if (d < closest_dist && d < grab_threshold) { closest_dist = d; closest_pos = cp; closest_idx = i; } } if (closest_idx >= 0) { pre_move_edit = poly; edited_point = closest_idx; edited_point_pos = poly[closest_idx]; _polygon_draw(); snap_ignore = false; return EditorPlugin::AFTER_GUI_INPUT_STOP; } } } else { snap_ignore = false; if (edited_point != -1) { //apply ERR_FAIL_INDEX_V(edited_point, poly.size(), EditorPlugin::AFTER_GUI_INPUT_PASS); poly.write[edited_point] = edited_point_pos; undo_redo->create_action(TTR("Edit Poly")); undo_redo->add_do_method(obj, "set_polygon", poly); undo_redo->add_undo_method(obj, "set_polygon", pre_move_edit); undo_redo->add_do_method(this, "_polygon_draw"); undo_redo->add_undo_method(this, "_polygon_draw"); undo_redo->commit_action(); edited_point = -1; return EditorPlugin::AFTER_GUI_INPUT_STOP; } } } if (mb->get_button_index() == MouseButton::RIGHT && mb->is_pressed() && edited_point == -1) { int closest_idx = -1; Vector2 closest_pos; real_t closest_dist = 1e10; for (int i = 0; i < poly.size(); i++) { Vector2 cp = p_camera->unproject_position(gt.xform(Vector3(poly[i].x, poly[i].y, depth))); real_t d = cp.distance_to(gpoint); if (d < closest_dist && d < grab_threshold) { closest_dist = d; closest_pos = cp; closest_idx = i; } } if (closest_idx >= 0) { undo_redo->create_action(TTR("Edit Poly (Remove Point)")); undo_redo->add_undo_method(obj, "set_polygon", poly); poly.remove_at(closest_idx); undo_redo->add_do_method(obj, "set_polygon", poly); undo_redo->add_do_method(this, "_polygon_draw"); undo_redo->add_undo_method(this, "_polygon_draw"); undo_redo->commit_action(); return EditorPlugin::AFTER_GUI_INPUT_STOP; } } } break; } } Ref<InputEventMouseMotion> mm = p_event; if (mm.is_valid()) { if (edited_point != -1 && (wip_active || (mm->get_button_mask() & MouseButton::MASK_LEFT) != MouseButton::NONE)) { Vector2 gpoint = mm->get_position(); Vector3 ray_from = p_camera->project_ray_origin(gpoint); Vector3 ray_dir = p_camera->project_ray_normal(gpoint); Vector3 spoint; if (!p.intersects_ray(ray_from, ray_dir, &spoint)) { return EditorPlugin::AFTER_GUI_INPUT_PASS; } spoint = gi.xform(spoint); Vector2 cpoint(spoint.x, spoint.y); if (snap_ignore && !Input::get_singleton()->is_key_pressed(Key::CTRL)) { snap_ignore = false; } if (!snap_ignore && Node3DEditor::get_singleton()->is_snap_enabled()) { cpoint = cpoint.snapped(Vector2( Node3DEditor::get_singleton()->get_translate_snap(), Node3DEditor::get_singleton()->get_translate_snap())); } edited_point_pos = cpoint; _polygon_draw(); } } return EditorPlugin::AFTER_GUI_INPUT_PASS; } float Polygon3DEditor::_get_depth() { Object *obj = node_resource.is_valid() ? (Object *)node_resource.ptr() : node; ERR_FAIL_COND_V_MSG(!obj, 0.0f, "Edited object is not valid."); if (bool(obj->call("_has_editable_3d_polygon_no_depth"))) { return 0.0f; } return float(obj->call("get_depth")); } PackedVector2Array Polygon3DEditor::_get_polygon() { Object *obj = node_resource.is_valid() ? (Object *)node_resource.ptr() : node; ERR_FAIL_COND_V_MSG(!obj, PackedVector2Array(), "Edited object is not valid."); return PackedVector2Array(obj->call("get_polygon")); } void Polygon3DEditor::_set_polygon(PackedVector2Array p_poly) { Object *obj = node_resource.is_valid() ? (Object *)node_resource.ptr() : node; ERR_FAIL_COND_MSG(!obj, "Edited object is not valid."); obj->call("set_polygon", p_poly); } void Polygon3DEditor::_polygon_draw() { if (!node) { return; } PackedVector2Array poly; if (wip_active) { poly = wip; } else { poly = _get_polygon(); } float depth = _get_depth() * 0.5; m->clear_surfaces(); imesh->clear_surfaces(); imgeom->set_material_override(line_material); imesh->surface_begin(Mesh::PRIMITIVE_LINES); Rect2 rect; for (int i = 0; i < poly.size(); i++) { Vector2 p, p2; p = i == edited_point ? edited_point_pos : poly[i]; if ((wip_active && i == poly.size() - 1) || (((i + 1) % poly.size()) == edited_point)) { p2 = edited_point_pos; } else { p2 = poly[(i + 1) % poly.size()]; } if (i == 0) { rect.position = p; } else { rect.expand_to(p); } Vector3 point = Vector3(p.x, p.y, depth); Vector3 next_point = Vector3(p2.x, p2.y, depth); imesh->surface_set_color(Color(1, 0.3, 0.1, 0.8)); imesh->surface_add_vertex(point); imesh->surface_set_color(Color(1, 0.3, 0.1, 0.8)); imesh->surface_add_vertex(next_point); //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); } rect = rect.grow(1); AABB r; r.position.x = rect.position.x; r.position.y = rect.position.y; r.position.z = depth; r.size.x = rect.size.x; r.size.y = rect.size.y; r.size.z = 0; imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0.3, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0.0, 0.3, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(r.size.x, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(r.size.x, 0, 0) - Vector3(0.3, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(r.size.x, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(r.size.x, 0, 0) + Vector3(0, 0.3, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0, r.size.y, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0, r.size.y, 0) - Vector3(0, 0.3, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0, r.size.y, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + Vector3(0, r.size.y, 0) + Vector3(0.3, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + r.size); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + r.size - Vector3(0.3, 0, 0)); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + r.size); imesh->surface_set_color(Color(0.8, 0.8, 0.8, 0.2)); imesh->surface_add_vertex(r.position + r.size - Vector3(0.0, 0.3, 0)); imesh->surface_end(); if (poly.size() == 0) { return; } Array a; a.resize(Mesh::ARRAY_MAX); Vector<Vector3> va; { va.resize(poly.size()); Vector3 *w = va.ptrw(); for (int i = 0; i < poly.size(); i++) { Vector2 p, p2; p = i == edited_point ? edited_point_pos : poly[i]; Vector3 point = Vector3(p.x, p.y, depth); w[i] = point; } } a[Mesh::ARRAY_VERTEX] = va; m->add_surface_from_arrays(Mesh::PRIMITIVE_POINTS, a); m->surface_set_material(0, handle_material); } void Polygon3DEditor::edit(Node *p_node) { if (p_node) { node = Object::cast_to<Node3D>(p_node); node_resource = node->call("_get_editable_3d_polygon_resource"); if (node_resource.is_valid()) { node_resource->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Polygon3DEditor::_polygon_draw)); } //Enable the pencil tool if the polygon is empty if (_get_polygon().is_empty()) { _menu_option(MODE_CREATE); } wip.clear(); wip_active = false; edited_point = -1; p_node->add_child(imgeom); _polygon_draw(); set_process(true); prev_depth = -1; } else { node = nullptr; if (node_resource.is_valid()) { node_resource->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &Polygon3DEditor::_polygon_draw)); } node_resource.unref(); if (imgeom->get_parent()) { imgeom->get_parent()->remove_child(imgeom); } set_process(false); } } void Polygon3DEditor::_bind_methods() { ClassDB::bind_method(D_METHOD("_polygon_draw"), &Polygon3DEditor::_polygon_draw); } Polygon3DEditor::Polygon3DEditor() { node = nullptr; undo_redo = EditorNode::get_undo_redo(); add_child(memnew(VSeparator)); button_create = memnew(Button); button_create->set_flat(true); add_child(button_create); button_create->connect("pressed", callable_mp(this, &Polygon3DEditor::_menu_option), varray(MODE_CREATE)); button_create->set_toggle_mode(true); button_edit = memnew(Button); button_edit->set_flat(true); add_child(button_edit); button_edit->connect("pressed", callable_mp(this, &Polygon3DEditor::_menu_option), varray(MODE_EDIT)); button_edit->set_toggle_mode(true); mode = MODE_EDIT; wip_active = false; imgeom = memnew(MeshInstance3D); imesh.instantiate(); imgeom->set_mesh(imesh); imgeom->set_transform(Transform3D(Basis(), Vector3(0, 0, 0.00001))); line_material = Ref<StandardMaterial3D>(memnew(StandardMaterial3D)); line_material->set_shading_mode(StandardMaterial3D::SHADING_MODE_UNSHADED); line_material->set_transparency(StandardMaterial3D::TRANSPARENCY_ALPHA); line_material->set_flag(StandardMaterial3D::FLAG_ALBEDO_FROM_VERTEX_COLOR, true); line_material->set_flag(StandardMaterial3D::FLAG_SRGB_VERTEX_COLOR, true); line_material->set_albedo(Color(1, 1, 1)); handle_material = Ref<StandardMaterial3D>(memnew(StandardMaterial3D)); handle_material->set_shading_mode(StandardMaterial3D::SHADING_MODE_UNSHADED); handle_material->set_flag(StandardMaterial3D::FLAG_USE_POINT_SIZE, true); handle_material->set_transparency(StandardMaterial3D::TRANSPARENCY_ALPHA); handle_material->set_flag(StandardMaterial3D::FLAG_ALBEDO_FROM_VERTEX_COLOR, true); handle_material->set_flag(StandardMaterial3D::FLAG_SRGB_VERTEX_COLOR, true); Ref<Texture2D> handle = EditorNode::get_singleton()->get_gui_base()->get_theme_icon(SNAME("Editor3DHandle"), SNAME("EditorIcons")); handle_material->set_point_size(handle->get_width()); handle_material->set_texture(StandardMaterial3D::TEXTURE_ALBEDO, handle); pointsm = memnew(MeshInstance3D); imgeom->add_child(pointsm); m.instantiate(); pointsm->set_mesh(m); pointsm->set_transform(Transform3D(Basis(), Vector3(0, 0, 0.00001))); snap_ignore = false; } Polygon3DEditor::~Polygon3DEditor() { memdelete(imgeom); } void Polygon3DEditorPlugin::edit(Object *p_object) { polygon_editor->edit(Object::cast_to<Node>(p_object)); } bool Polygon3DEditorPlugin::handles(Object *p_object) const { return Object::cast_to<Node3D>(p_object) && bool(p_object->call("_is_editable_3d_polygon")); } void Polygon3DEditorPlugin::make_visible(bool p_visible) { if (p_visible) { polygon_editor->show(); } else { polygon_editor->hide(); polygon_editor->edit(nullptr); } } Polygon3DEditorPlugin::Polygon3DEditorPlugin() { polygon_editor = memnew(Polygon3DEditor); Node3DEditor::get_singleton()->add_control_to_menu_panel(polygon_editor); polygon_editor->hide(); } Polygon3DEditorPlugin::~Polygon3DEditorPlugin() { }