cacced7e50
Currently we rely on some undefined behavior when Object->cast_to() gets called with a Null pointer. This used to work fine with GCC < 6 but newer versions of GCC remove all codepaths in which the this pointer is Null. However, the non-static cast_to() was supposed to be null safe. This patch makes cast_to() Null safe and removes the now redundant Null checks where they existed. It is explained in this article: https://www.viva64.com/en/b/0226/
322 lines
11 KiB
C++
322 lines
11 KiB
C++
/*************************************************************************/
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/* mesh_instance_editor_plugin.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "mesh_instance_editor_plugin.h"
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#include "scene/3d/collision_shape.h"
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#include "scene/3d/navigation_mesh.h"
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#include "scene/3d/physics_body.h"
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#include "scene/gui/box_container.h"
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#include "spatial_editor_plugin.h"
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void MeshInstanceEditor::_node_removed(Node *p_node) {
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if (p_node == node) {
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node = NULL;
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options->hide();
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}
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}
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void MeshInstanceEditor::edit(MeshInstance *p_mesh) {
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node = p_mesh;
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}
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void MeshInstanceEditor::_menu_option(int p_option) {
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Ref<Mesh> mesh = node->get_mesh();
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if (mesh.is_null()) {
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err_dialog->set_text(TTR("Mesh is empty!"));
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err_dialog->popup_centered_minsize();
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return;
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}
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switch (p_option) {
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case MENU_OPTION_CREATE_STATIC_TRIMESH_BODY:
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case MENU_OPTION_CREATE_STATIC_CONVEX_BODY: {
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bool trimesh_shape = (p_option == MENU_OPTION_CREATE_STATIC_TRIMESH_BODY);
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EditorSelection *editor_selection = EditorNode::get_singleton()->get_editor_selection();
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UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
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List<Node *> selection = editor_selection->get_selected_node_list();
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if (selection.empty()) {
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Ref<Shape> shape = trimesh_shape ? mesh->create_trimesh_shape() : mesh->create_convex_shape();
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if (shape.is_null())
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return;
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CollisionShape *cshape = memnew(CollisionShape);
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cshape->set_shape(shape);
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StaticBody *body = memnew(StaticBody);
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body->add_child(cshape);
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Node *owner = node == get_tree()->get_edited_scene_root() ? node : node->get_owner();
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if (trimesh_shape)
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ur->create_action(TTR("Create Static Trimesh Body"));
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else
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ur->create_action(TTR("Create Static Convex Body"));
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ur->add_do_method(node, "add_child", body);
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ur->add_do_method(body, "set_owner", owner);
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ur->add_do_method(cshape, "set_owner", owner);
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ur->add_do_reference(body);
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ur->add_undo_method(node, "remove_child", body);
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ur->commit_action();
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return;
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}
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if (trimesh_shape)
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ur->create_action(TTR("Create Static Trimesh Body"));
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else
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ur->create_action(TTR("Create Static Convex Body"));
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for (List<Node *>::Element *E = selection.front(); E; E = E->next()) {
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MeshInstance *instance = Object::cast_to<MeshInstance>(E->get());
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if (!instance)
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continue;
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Ref<Mesh> m = instance->get_mesh();
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if (m.is_null())
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continue;
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Ref<Shape> shape = trimesh_shape ? m->create_trimesh_shape() : m->create_convex_shape();
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if (shape.is_null())
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continue;
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CollisionShape *cshape = memnew(CollisionShape);
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cshape->set_shape(shape);
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StaticBody *body = memnew(StaticBody);
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body->add_child(cshape);
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Node *owner = instance == get_tree()->get_edited_scene_root() ? instance : instance->get_owner();
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ur->add_do_method(instance, "add_child", body);
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ur->add_do_method(body, "set_owner", owner);
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ur->add_do_method(cshape, "set_owner", owner);
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ur->add_do_reference(body);
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ur->add_undo_method(instance, "remove_child", body);
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}
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ur->commit_action();
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} break;
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case MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE:
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case MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE: {
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if (node == get_tree()->get_edited_scene_root()) {
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err_dialog->set_text(TTR("This doesn't work on scene root!"));
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err_dialog->popup_centered_minsize();
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return;
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}
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bool trimesh_shape = (p_option == MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE);
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Ref<Shape> shape = trimesh_shape ? mesh->create_trimesh_shape() : mesh->create_convex_shape();
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if (shape.is_null())
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return;
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CollisionShape *cshape = memnew(CollisionShape);
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cshape->set_shape(shape);
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Node *owner = node->get_owner();
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UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
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if (trimesh_shape)
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ur->create_action(TTR("Create Trimesh Shape"));
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else
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ur->create_action(TTR("Create Convex Shape"));
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ur->add_do_method(node->get_parent(), "add_child", cshape);
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ur->add_do_method(node->get_parent(), "move_child", cshape, node->get_index() + 1);
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ur->add_do_method(cshape, "set_owner", owner);
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ur->add_do_reference(cshape);
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ur->add_undo_method(node->get_parent(), "remove_child", cshape);
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ur->commit_action();
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} break;
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case MENU_OPTION_CREATE_NAVMESH: {
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Ref<NavigationMesh> nmesh = memnew(NavigationMesh);
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if (nmesh.is_null())
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return;
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nmesh->create_from_mesh(mesh);
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NavigationMeshInstance *nmi = memnew(NavigationMeshInstance);
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nmi->set_navigation_mesh(nmesh);
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Node *owner = node == get_tree()->get_edited_scene_root() ? node : node->get_owner();
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UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
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ur->create_action(TTR("Create Navigation Mesh"));
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ur->add_do_method(node, "add_child", nmi);
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ur->add_do_method(nmi, "set_owner", owner);
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ur->add_do_reference(nmi);
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ur->add_undo_method(node, "remove_child", nmi);
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ur->commit_action();
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} break;
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case MENU_OPTION_CREATE_OUTLINE_MESH: {
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outline_dialog->popup_centered(Vector2(200, 90));
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} break;
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}
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}
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void MeshInstanceEditor::_create_outline_mesh() {
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Ref<Mesh> mesh = node->get_mesh();
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if (mesh.is_null()) {
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err_dialog->set_text(TTR("MeshInstance lacks a Mesh!"));
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err_dialog->popup_centered_minsize();
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return;
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}
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if (mesh->get_surface_count() == 0) {
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err_dialog->set_text(TTR("Mesh has not surface to create outlines from!"));
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err_dialog->popup_centered_minsize();
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return;
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}
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Ref<Mesh> mesho = mesh->create_outline(outline_size->get_value());
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if (mesho.is_null()) {
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err_dialog->set_text(TTR("Could not create outline!"));
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err_dialog->popup_centered_minsize();
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return;
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}
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MeshInstance *mi = memnew(MeshInstance);
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mi->set_mesh(mesho);
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Node *owner = node->get_owner();
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if (get_tree()->get_edited_scene_root() == node) {
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owner = node;
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}
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UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
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ur->create_action(TTR("Create Outline"));
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ur->add_do_method(node, "add_child", mi);
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ur->add_do_method(mi, "set_owner", owner);
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ur->add_do_reference(mi);
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ur->add_undo_method(node, "remove_child", mi);
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ur->commit_action();
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}
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void MeshInstanceEditor::_bind_methods() {
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ClassDB::bind_method("_menu_option", &MeshInstanceEditor::_menu_option);
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ClassDB::bind_method("_create_outline_mesh", &MeshInstanceEditor::_create_outline_mesh);
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}
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MeshInstanceEditor::MeshInstanceEditor() {
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options = memnew(MenuButton);
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SpatialEditor::get_singleton()->add_control_to_menu_panel(options);
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options->set_text(TTR("Mesh"));
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options->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("MeshInstance", "EditorIcons"));
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options->get_popup()->add_item(TTR("Create Trimesh Static Body"), MENU_OPTION_CREATE_STATIC_TRIMESH_BODY);
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options->get_popup()->add_item(TTR("Create Convex Static Body"), MENU_OPTION_CREATE_STATIC_CONVEX_BODY);
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options->get_popup()->add_separator();
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options->get_popup()->add_item(TTR("Create Trimesh Collision Sibling"), MENU_OPTION_CREATE_TRIMESH_COLLISION_SHAPE);
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options->get_popup()->add_item(TTR("Create Convex Collision Sibling"), MENU_OPTION_CREATE_CONVEX_COLLISION_SHAPE);
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options->get_popup()->add_separator();
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options->get_popup()->add_item(TTR("Create Navigation Mesh"), MENU_OPTION_CREATE_NAVMESH);
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options->get_popup()->add_separator();
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options->get_popup()->add_item(TTR("Create Outline Mesh.."), MENU_OPTION_CREATE_OUTLINE_MESH);
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options->get_popup()->connect("id_pressed", this, "_menu_option");
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outline_dialog = memnew(ConfirmationDialog);
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outline_dialog->set_title(TTR("Create Outline Mesh"));
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outline_dialog->get_ok()->set_text(TTR("Create"));
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VBoxContainer *outline_dialog_vbc = memnew(VBoxContainer);
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outline_dialog->add_child(outline_dialog_vbc);
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//outline_dialog->set_child_rect(outline_dialog_vbc);
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outline_size = memnew(SpinBox);
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outline_size->set_min(0.001);
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outline_size->set_max(1024);
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outline_size->set_step(0.001);
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outline_size->set_value(0.05);
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outline_dialog_vbc->add_margin_child(TTR("Outline Size:"), outline_size);
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add_child(outline_dialog);
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outline_dialog->connect("confirmed", this, "_create_outline_mesh");
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err_dialog = memnew(AcceptDialog);
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add_child(err_dialog);
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}
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void MeshInstanceEditorPlugin::edit(Object *p_object) {
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mesh_editor->edit(Object::cast_to<MeshInstance>(p_object));
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}
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bool MeshInstanceEditorPlugin::handles(Object *p_object) const {
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return p_object->is_class("MeshInstance");
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}
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void MeshInstanceEditorPlugin::make_visible(bool p_visible) {
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if (p_visible) {
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mesh_editor->options->show();
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} else {
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mesh_editor->options->hide();
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mesh_editor->edit(NULL);
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}
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}
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MeshInstanceEditorPlugin::MeshInstanceEditorPlugin(EditorNode *p_node) {
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editor = p_node;
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mesh_editor = memnew(MeshInstanceEditor);
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editor->get_viewport()->add_child(mesh_editor);
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mesh_editor->options->hide();
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}
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MeshInstanceEditorPlugin::~MeshInstanceEditorPlugin() {
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}
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