a1db6784d6
MeshInstance added as child nodes for CollisionObject debug shapes can be invalidated while deleting the collision object (child nodes are deleted first), which caused accesses to invalid memory in shape_owner_remove_shape that lead to random crashes. Also optimized accesses to shapes to avoid copy-on-write on each iteration.
475 lines
16 KiB
C++
475 lines
16 KiB
C++
/*************************************************************************/
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/* collision_object.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 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 "collision_object.h"
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#include "core/engine.h"
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#include "mesh_instance.h"
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#include "scene/scene_string_names.h"
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#include "servers/physics_server.h"
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void CollisionObject::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_WORLD: {
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if (area)
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PhysicsServer::get_singleton()->area_set_transform(rid, get_global_transform());
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else
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PhysicsServer::get_singleton()->body_set_state(rid, PhysicsServer::BODY_STATE_TRANSFORM, get_global_transform());
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RID space = get_world()->get_space();
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if (area) {
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PhysicsServer::get_singleton()->area_set_space(rid, space);
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} else
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PhysicsServer::get_singleton()->body_set_space(rid, space);
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_update_pickable();
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//get space
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} break;
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case NOTIFICATION_TRANSFORM_CHANGED: {
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if (area)
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PhysicsServer::get_singleton()->area_set_transform(rid, get_global_transform());
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else
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PhysicsServer::get_singleton()->body_set_state(rid, PhysicsServer::BODY_STATE_TRANSFORM, get_global_transform());
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} break;
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case NOTIFICATION_VISIBILITY_CHANGED: {
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_update_pickable();
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} break;
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case NOTIFICATION_EXIT_WORLD: {
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if (area) {
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PhysicsServer::get_singleton()->area_set_space(rid, RID());
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} else
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PhysicsServer::get_singleton()->body_set_space(rid, RID());
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} break;
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case NOTIFICATION_PREDELETE: {
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if (debug_shape_count > 0) {
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_clear_debug_shapes();
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}
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} break;
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}
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}
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void CollisionObject::_input_event(Node *p_camera, const Ref<InputEvent> &p_input_event, const Vector3 &p_pos, const Vector3 &p_normal, int p_shape) {
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if (get_script_instance()) {
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get_script_instance()->call(SceneStringNames::get_singleton()->_input_event, p_camera, p_input_event, p_pos, p_normal, p_shape);
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}
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emit_signal(SceneStringNames::get_singleton()->input_event, p_camera, p_input_event, p_pos, p_normal, p_shape);
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}
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void CollisionObject::_mouse_enter() {
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if (get_script_instance()) {
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get_script_instance()->call(SceneStringNames::get_singleton()->_mouse_enter);
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}
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emit_signal(SceneStringNames::get_singleton()->mouse_entered);
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}
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void CollisionObject::_mouse_exit() {
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if (get_script_instance()) {
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get_script_instance()->call(SceneStringNames::get_singleton()->_mouse_exit);
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}
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emit_signal(SceneStringNames::get_singleton()->mouse_exited);
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}
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void CollisionObject::_update_pickable() {
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if (!is_inside_tree())
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return;
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bool pickable = ray_pickable && is_visible_in_tree();
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if (area)
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PhysicsServer::get_singleton()->area_set_ray_pickable(rid, pickable);
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else
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PhysicsServer::get_singleton()->body_set_ray_pickable(rid, pickable);
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}
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void CollisionObject::_update_debug_shapes() {
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for (Set<uint32_t>::Element *shapedata_idx = debug_shapes_to_update.front(); shapedata_idx; shapedata_idx = shapedata_idx->next()) {
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if (shapes.has(shapedata_idx->get())) {
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ShapeData &shapedata = shapes[shapedata_idx->get()];
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ShapeData::ShapeBase *shapes = shapedata.shapes.ptrw();
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for (int i = 0; i < shapedata.shapes.size(); i++) {
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ShapeData::ShapeBase &s = shapes[i];
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if (s.debug_shape) {
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s.debug_shape->queue_delete();
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s.debug_shape = nullptr;
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--debug_shape_count;
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}
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if (s.shape.is_null() || shapedata.disabled) {
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continue;
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}
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Ref<Mesh> mesh = s.shape->get_debug_mesh();
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MeshInstance *mi = memnew(MeshInstance);
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mi->set_transform(shapedata.xform);
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mi->set_mesh(mesh);
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add_child(mi);
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mi->force_update_transform();
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s.debug_shape = mi;
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++debug_shape_count;
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}
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}
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}
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debug_shapes_to_update.clear();
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}
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void CollisionObject::_clear_debug_shapes() {
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for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
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ShapeData &shapedata = E->get();
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ShapeData::ShapeBase *shapes = shapedata.shapes.ptrw();
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for (int i = 0; i < shapedata.shapes.size(); i++) {
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ShapeData::ShapeBase &s = shapes[i];
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if (s.debug_shape) {
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s.debug_shape->queue_delete();
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s.debug_shape = nullptr;
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}
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}
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}
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debug_shape_count = 0;
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}
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void CollisionObject::_update_shape_data(uint32_t p_owner) {
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if (is_inside_tree() && get_tree()->is_debugging_collisions_hint() && !Engine::get_singleton()->is_editor_hint()) {
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if (debug_shapes_to_update.empty()) {
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call_deferred("_update_debug_shapes");
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}
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debug_shapes_to_update.insert(p_owner);
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}
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}
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void CollisionObject::set_ray_pickable(bool p_ray_pickable) {
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ray_pickable = p_ray_pickable;
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_update_pickable();
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}
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bool CollisionObject::is_ray_pickable() const {
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return ray_pickable;
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}
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void CollisionObject::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_ray_pickable", "ray_pickable"), &CollisionObject::set_ray_pickable);
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ClassDB::bind_method(D_METHOD("is_ray_pickable"), &CollisionObject::is_ray_pickable);
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ClassDB::bind_method(D_METHOD("set_capture_input_on_drag", "enable"), &CollisionObject::set_capture_input_on_drag);
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ClassDB::bind_method(D_METHOD("get_capture_input_on_drag"), &CollisionObject::get_capture_input_on_drag);
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ClassDB::bind_method(D_METHOD("get_rid"), &CollisionObject::get_rid);
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ClassDB::bind_method(D_METHOD("create_shape_owner", "owner"), &CollisionObject::create_shape_owner);
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ClassDB::bind_method(D_METHOD("remove_shape_owner", "owner_id"), &CollisionObject::remove_shape_owner);
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ClassDB::bind_method(D_METHOD("get_shape_owners"), &CollisionObject::_get_shape_owners);
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ClassDB::bind_method(D_METHOD("shape_owner_set_transform", "owner_id", "transform"), &CollisionObject::shape_owner_set_transform);
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ClassDB::bind_method(D_METHOD("shape_owner_get_transform", "owner_id"), &CollisionObject::shape_owner_get_transform);
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ClassDB::bind_method(D_METHOD("shape_owner_get_owner", "owner_id"), &CollisionObject::shape_owner_get_owner);
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ClassDB::bind_method(D_METHOD("shape_owner_set_disabled", "owner_id", "disabled"), &CollisionObject::shape_owner_set_disabled);
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ClassDB::bind_method(D_METHOD("is_shape_owner_disabled", "owner_id"), &CollisionObject::is_shape_owner_disabled);
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ClassDB::bind_method(D_METHOD("shape_owner_add_shape", "owner_id", "shape"), &CollisionObject::shape_owner_add_shape);
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ClassDB::bind_method(D_METHOD("shape_owner_get_shape_count", "owner_id"), &CollisionObject::shape_owner_get_shape_count);
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ClassDB::bind_method(D_METHOD("shape_owner_get_shape", "owner_id", "shape_id"), &CollisionObject::shape_owner_get_shape);
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ClassDB::bind_method(D_METHOD("shape_owner_get_shape_index", "owner_id", "shape_id"), &CollisionObject::shape_owner_get_shape_index);
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ClassDB::bind_method(D_METHOD("shape_owner_remove_shape", "owner_id", "shape_id"), &CollisionObject::shape_owner_remove_shape);
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ClassDB::bind_method(D_METHOD("shape_owner_clear_shapes", "owner_id"), &CollisionObject::shape_owner_clear_shapes);
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ClassDB::bind_method(D_METHOD("shape_find_owner", "shape_index"), &CollisionObject::shape_find_owner);
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ClassDB::bind_method(D_METHOD("_update_debug_shapes"), &CollisionObject::_update_debug_shapes);
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BIND_VMETHOD(MethodInfo("_input_event", PropertyInfo(Variant::OBJECT, "camera"), PropertyInfo(Variant::OBJECT, "event", PROPERTY_HINT_RESOURCE_TYPE, "InputEvent"), PropertyInfo(Variant::VECTOR3, "click_position"), PropertyInfo(Variant::VECTOR3, "click_normal"), PropertyInfo(Variant::INT, "shape_idx")));
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ADD_SIGNAL(MethodInfo("input_event", PropertyInfo(Variant::OBJECT, "camera", PROPERTY_HINT_RESOURCE_TYPE, "Node"), PropertyInfo(Variant::OBJECT, "event", PROPERTY_HINT_RESOURCE_TYPE, "InputEvent"), PropertyInfo(Variant::VECTOR3, "click_position"), PropertyInfo(Variant::VECTOR3, "click_normal"), PropertyInfo(Variant::INT, "shape_idx")));
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ADD_SIGNAL(MethodInfo("mouse_entered"));
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ADD_SIGNAL(MethodInfo("mouse_exited"));
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "input_ray_pickable"), "set_ray_pickable", "is_ray_pickable");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "input_capture_on_drag"), "set_capture_input_on_drag", "get_capture_input_on_drag");
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}
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uint32_t CollisionObject::create_shape_owner(Object *p_owner) {
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ShapeData sd;
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uint32_t id;
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if (shapes.size() == 0) {
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id = 0;
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} else {
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id = shapes.back()->key() + 1;
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}
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sd.owner = p_owner;
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shapes[id] = sd;
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return id;
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}
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void CollisionObject::remove_shape_owner(uint32_t owner) {
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ERR_FAIL_COND(!shapes.has(owner));
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shape_owner_clear_shapes(owner);
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shapes.erase(owner);
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}
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void CollisionObject::shape_owner_set_disabled(uint32_t p_owner, bool p_disabled) {
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ERR_FAIL_COND(!shapes.has(p_owner));
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ShapeData &sd = shapes[p_owner];
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sd.disabled = p_disabled;
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for (int i = 0; i < sd.shapes.size(); i++) {
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if (area) {
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PhysicsServer::get_singleton()->area_set_shape_disabled(rid, sd.shapes[i].index, p_disabled);
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} else {
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PhysicsServer::get_singleton()->body_set_shape_disabled(rid, sd.shapes[i].index, p_disabled);
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}
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}
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_update_shape_data(p_owner);
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}
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bool CollisionObject::is_shape_owner_disabled(uint32_t p_owner) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), false);
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return shapes[p_owner].disabled;
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}
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void CollisionObject::get_shape_owners(List<uint32_t> *r_owners) {
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for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
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r_owners->push_back(E->key());
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}
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}
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Array CollisionObject::_get_shape_owners() {
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Array ret;
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for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
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ret.push_back(E->key());
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}
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return ret;
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}
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void CollisionObject::shape_owner_set_transform(uint32_t p_owner, const Transform &p_transform) {
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ERR_FAIL_COND(!shapes.has(p_owner));
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ShapeData &sd = shapes[p_owner];
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sd.xform = p_transform;
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for (int i = 0; i < sd.shapes.size(); i++) {
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if (area) {
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PhysicsServer::get_singleton()->area_set_shape_transform(rid, sd.shapes[i].index, p_transform);
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} else {
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PhysicsServer::get_singleton()->body_set_shape_transform(rid, sd.shapes[i].index, p_transform);
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}
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}
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_update_shape_data(p_owner);
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}
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Transform CollisionObject::shape_owner_get_transform(uint32_t p_owner) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), Transform());
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return shapes[p_owner].xform;
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}
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Object *CollisionObject::shape_owner_get_owner(uint32_t p_owner) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), NULL);
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return shapes[p_owner].owner;
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}
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void CollisionObject::shape_owner_add_shape(uint32_t p_owner, const Ref<Shape> &p_shape) {
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ERR_FAIL_COND(!shapes.has(p_owner));
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ERR_FAIL_COND(p_shape.is_null());
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ShapeData &sd = shapes[p_owner];
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ShapeData::ShapeBase s;
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s.index = total_subshapes;
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s.shape = p_shape;
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if (area) {
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PhysicsServer::get_singleton()->area_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
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} else {
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PhysicsServer::get_singleton()->body_add_shape(rid, p_shape->get_rid(), sd.xform, sd.disabled);
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}
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sd.shapes.push_back(s);
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total_subshapes++;
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_update_shape_data(p_owner);
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}
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int CollisionObject::shape_owner_get_shape_count(uint32_t p_owner) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), 0);
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return shapes[p_owner].shapes.size();
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}
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Ref<Shape> CollisionObject::shape_owner_get_shape(uint32_t p_owner, int p_shape) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), Ref<Shape>());
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ERR_FAIL_INDEX_V(p_shape, shapes[p_owner].shapes.size(), Ref<Shape>());
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return shapes[p_owner].shapes[p_shape].shape;
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}
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int CollisionObject::shape_owner_get_shape_index(uint32_t p_owner, int p_shape) const {
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ERR_FAIL_COND_V(!shapes.has(p_owner), -1);
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ERR_FAIL_INDEX_V(p_shape, shapes[p_owner].shapes.size(), -1);
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return shapes[p_owner].shapes[p_shape].index;
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}
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void CollisionObject::shape_owner_remove_shape(uint32_t p_owner, int p_shape) {
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ERR_FAIL_COND(!shapes.has(p_owner));
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ERR_FAIL_INDEX(p_shape, shapes[p_owner].shapes.size());
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const ShapeData::ShapeBase &s = shapes[p_owner].shapes[p_shape];
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int index_to_remove = s.index;
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if (area) {
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PhysicsServer::get_singleton()->area_remove_shape(rid, index_to_remove);
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} else {
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PhysicsServer::get_singleton()->body_remove_shape(rid, index_to_remove);
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}
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if (s.debug_shape) {
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s.debug_shape->queue_delete();
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--debug_shape_count;
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}
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shapes[p_owner].shapes.remove(p_shape);
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for (Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
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for (int i = 0; i < E->get().shapes.size(); i++) {
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if (E->get().shapes[i].index > index_to_remove) {
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E->get().shapes.write[i].index -= 1;
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}
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}
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}
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total_subshapes--;
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}
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void CollisionObject::shape_owner_clear_shapes(uint32_t p_owner) {
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ERR_FAIL_COND(!shapes.has(p_owner));
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while (shape_owner_get_shape_count(p_owner) > 0) {
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shape_owner_remove_shape(p_owner, 0);
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}
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}
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uint32_t CollisionObject::shape_find_owner(int p_shape_index) const {
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ERR_FAIL_INDEX_V(p_shape_index, total_subshapes, 0);
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for (const Map<uint32_t, ShapeData>::Element *E = shapes.front(); E; E = E->next()) {
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for (int i = 0; i < E->get().shapes.size(); i++) {
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if (E->get().shapes[i].index == p_shape_index) {
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return E->key();
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}
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}
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}
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//in theory it should be unreachable
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return 0;
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}
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CollisionObject::CollisionObject(RID p_rid, bool p_area) {
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rid = p_rid;
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area = p_area;
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capture_input_on_drag = false;
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ray_pickable = true;
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set_notify_transform(true);
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total_subshapes = 0;
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if (p_area) {
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PhysicsServer::get_singleton()->area_attach_object_instance_id(rid, get_instance_id());
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} else {
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PhysicsServer::get_singleton()->body_attach_object_instance_id(rid, get_instance_id());
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}
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//set_transform_notify(true);
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}
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void CollisionObject::set_capture_input_on_drag(bool p_capture) {
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capture_input_on_drag = p_capture;
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}
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bool CollisionObject::get_capture_input_on_drag() const {
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return capture_input_on_drag;
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}
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String CollisionObject::get_configuration_warning() const {
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String warning = Spatial::get_configuration_warning();
|
|
|
|
if (shapes.empty()) {
|
|
if (!warning.empty()) {
|
|
warning += "\n\n";
|
|
}
|
|
warning += TTR("This node has no shape, so it can't collide or interact with other objects.\nConsider adding a CollisionShape or CollisionPolygon as a child to define its shape.");
|
|
}
|
|
|
|
return warning;
|
|
}
|
|
|
|
CollisionObject::CollisionObject() {
|
|
|
|
capture_input_on_drag = false;
|
|
ray_pickable = true;
|
|
set_notify_transform(true);
|
|
//owner=
|
|
|
|
//set_transform_notify(true);
|
|
}
|
|
|
|
CollisionObject::~CollisionObject() {
|
|
|
|
PhysicsServer::get_singleton()->free(rid);
|
|
}
|