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godot/scene/3d/bone_attachment_3d.cpp

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/**************************************************************************/
/* bone_attachment_3d.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "bone_attachment_3d.h"
#include "bone_attachment_3d.compat.inc"
void BoneAttachment3D::_validate_property(PropertyInfo &p_property) const {
if (p_property.name == "bone_name") {
// Because it is a constant function, we cannot use the _get_skeleton_3d function.
const Skeleton3D *parent = nullptr;
if (use_external_skeleton) {
if (external_skeleton_node_cache.is_valid()) {
parent = Object::cast_to<Skeleton3D>(ObjectDB::get_instance(external_skeleton_node_cache));
}
} else {
parent = Object::cast_to<Skeleton3D>(get_parent());
}
if (parent) {
String names;
for (int i = 0; i < parent->get_bone_count(); i++) {
if (i > 0) {
names += ",";
}
names += parent->get_bone_name(i);
}
p_property.hint = PROPERTY_HINT_ENUM;
p_property.hint_string = names;
} else {
p_property.hint = PROPERTY_HINT_NONE;
p_property.hint_string = "";
}
}
}
bool BoneAttachment3D::_set(const StringName &p_path, const Variant &p_value) {
if (p_path == SNAME("use_external_skeleton")) {
set_use_external_skeleton(p_value);
} else if (p_path == SNAME("external_skeleton")) {
set_external_skeleton(p_value);
}
return true;
}
bool BoneAttachment3D::_get(const StringName &p_path, Variant &r_ret) const {
if (p_path == SNAME("use_external_skeleton")) {
r_ret = get_use_external_skeleton();
} else if (p_path == SNAME("external_skeleton")) {
r_ret = get_external_skeleton();
}
return true;
}
void BoneAttachment3D::_get_property_list(List<PropertyInfo> *p_list) const {
p_list->push_back(PropertyInfo(Variant::BOOL, "use_external_skeleton", PROPERTY_HINT_NONE, ""));
if (use_external_skeleton) {
p_list->push_back(PropertyInfo(Variant::NODE_PATH, "external_skeleton", PROPERTY_HINT_NODE_PATH_VALID_TYPES, "Skeleton3D"));
}
}
PackedStringArray BoneAttachment3D::get_configuration_warnings() const {
PackedStringArray warnings = Node3D::get_configuration_warnings();
if (use_external_skeleton) {
if (external_skeleton_node_cache.is_null()) {
warnings.push_back(RTR("External Skeleton3D node not set! Please set a path to an external Skeleton3D node."));
}
} else {
Skeleton3D *parent = Object::cast_to<Skeleton3D>(get_parent());
if (!parent) {
warnings.push_back(RTR("Parent node is not a Skeleton3D node! Please use an external Skeleton3D if you intend to use the BoneAttachment3D without it being a child of a Skeleton3D node."));
}
}
if (bone_idx == -1) {
warnings.push_back(RTR("BoneAttachment3D node is not bound to any bones! Please select a bone to attach this node."));
}
return warnings;
}
void BoneAttachment3D::_update_external_skeleton_cache() {
external_skeleton_node_cache = ObjectID();
if (has_node(external_skeleton_node)) {
Node *node = get_node(external_skeleton_node);
ERR_FAIL_NULL_MSG(node, "Cannot update external skeleton cache: Node cannot be found!");
// Make sure it's a skeleton3D
Skeleton3D *sk = Object::cast_to<Skeleton3D>(node);
ERR_FAIL_NULL_MSG(sk, "Cannot update external skeleton cache: Skeleton3D Nodepath does not point to a Skeleton3D node!");
external_skeleton_node_cache = node->get_instance_id();
} else {
if (external_skeleton_node.is_empty()) {
BoneAttachment3D *parent_attachment = Object::cast_to<BoneAttachment3D>(get_parent());
if (parent_attachment) {
parent_attachment->_update_external_skeleton_cache();
if (parent_attachment->has_node(parent_attachment->external_skeleton_node)) {
Node *node = parent_attachment->get_node(parent_attachment->external_skeleton_node);
ERR_FAIL_NULL_MSG(node, "Cannot update external skeleton cache: Parent's Skeleton3D node cannot be found!");
// Make sure it's a skeleton3D
Skeleton3D *sk = Object::cast_to<Skeleton3D>(node);
ERR_FAIL_NULL_MSG(sk, "Cannot update external skeleton cache: Parent Skeleton3D Nodepath does not point to a Skeleton3D node!");
external_skeleton_node_cache = node->get_instance_id();
external_skeleton_node = get_path_to(node);
}
}
}
}
}
void BoneAttachment3D::_check_bind() {
Skeleton3D *sk = _get_skeleton3d();
if (sk && !bound) {
if (bone_idx <= -1) {
bone_idx = sk->find_bone(bone_name);
}
if (bone_idx != -1) {
sk->connect(SceneStringName(skeleton_updated), callable_mp(this, &BoneAttachment3D::on_skeleton_update));
bound = true;
callable_mp(this, &BoneAttachment3D::on_skeleton_update);
}
}
}
Skeleton3D *BoneAttachment3D::_get_skeleton3d() {
if (use_external_skeleton) {
if (external_skeleton_node_cache.is_valid()) {
return Object::cast_to<Skeleton3D>(ObjectDB::get_instance(external_skeleton_node_cache));
} else {
_update_external_skeleton_cache();
if (external_skeleton_node_cache.is_valid()) {
return Object::cast_to<Skeleton3D>(ObjectDB::get_instance(external_skeleton_node_cache));
}
}
} else {
return Object::cast_to<Skeleton3D>(get_parent());
}
return nullptr;
}
void BoneAttachment3D::_check_unbind() {
if (bound) {
Skeleton3D *sk = _get_skeleton3d();
if (sk) {
sk->disconnect(SceneStringName(skeleton_updated), callable_mp(this, &BoneAttachment3D::on_skeleton_update));
}
bound = false;
}
}
void BoneAttachment3D::_transform_changed() {
if (!is_inside_tree()) {
return;
}
if (override_pose && !overriding) {
Skeleton3D *sk = _get_skeleton3d();
ERR_FAIL_NULL_MSG(sk, "Cannot override pose: Skeleton not found!");
ERR_FAIL_INDEX_MSG(bone_idx, sk->get_bone_count(), "Cannot override pose: Bone index is out of range!");
Transform3D our_trans = get_transform();
if (use_external_skeleton) {
our_trans = sk->get_global_transform().affine_inverse() * get_global_transform();
}
overriding = true;
sk->set_bone_global_pose(bone_idx, our_trans);
sk->force_update_all_dirty_bones();
}
overriding = false;
}
void BoneAttachment3D::set_bone_name(const String &p_name) {
bone_name = p_name;
Skeleton3D *sk = _get_skeleton3d();
if (sk) {
set_bone_idx(sk->find_bone(bone_name));
}
}
String BoneAttachment3D::get_bone_name() const {
return bone_name;
}
void BoneAttachment3D::set_bone_idx(const int &p_idx) {
if (is_inside_tree()) {
_check_unbind();
}
bone_idx = p_idx;
Skeleton3D *sk = _get_skeleton3d();
if (sk) {
if (bone_idx <= -1 || bone_idx >= sk->get_bone_count()) {
WARN_PRINT("Bone index out of range! Cannot connect BoneAttachment to node!");
bone_idx = -1;
} else {
bone_name = sk->get_bone_name(bone_idx);
}
}
if (is_inside_tree()) {
_check_bind();
}
notify_property_list_changed();
}
int BoneAttachment3D::get_bone_idx() const {
return bone_idx;
}
void BoneAttachment3D::set_override_pose(bool p_override) {
override_pose = p_override;
set_notify_transform(override_pose);
set_process_internal(override_pose);
notify_property_list_changed();
}
bool BoneAttachment3D::get_override_pose() const {
return override_pose;
}
void BoneAttachment3D::set_use_external_skeleton(bool p_use_external) {
use_external_skeleton = p_use_external;
if (use_external_skeleton) {
_check_unbind();
_update_external_skeleton_cache();
_check_bind();
_transform_changed();
}
notify_property_list_changed();
}
bool BoneAttachment3D::get_use_external_skeleton() const {
return use_external_skeleton;
}
void BoneAttachment3D::set_external_skeleton(NodePath p_path) {
external_skeleton_node = p_path;
_update_external_skeleton_cache();
notify_property_list_changed();
}
NodePath BoneAttachment3D::get_external_skeleton() const {
return external_skeleton_node;
}
void BoneAttachment3D::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (use_external_skeleton) {
_update_external_skeleton_cache();
}
_check_bind();
} break;
case NOTIFICATION_EXIT_TREE: {
_check_unbind();
} break;
case NOTIFICATION_TRANSFORM_CHANGED: {
_transform_changed();
} break;
case NOTIFICATION_INTERNAL_PROCESS: {
if (_override_dirty) {
_override_dirty = false;
}
} break;
}
}
void BoneAttachment3D::on_skeleton_update() {
if (updating) {
return;
}
updating = true;
if (bone_idx >= 0) {
Skeleton3D *sk = _get_skeleton3d();
if (sk) {
if (!override_pose) {
if (use_external_skeleton) {
set_global_transform(sk->get_global_transform() * sk->get_bone_global_pose(bone_idx));
} else {
set_transform(sk->get_bone_global_pose(bone_idx));
}
} else {
if (!_override_dirty) {
_transform_changed();
_override_dirty = true;
}
}
}
}
updating = false;
}
#ifdef TOOLS_ENABLED
void BoneAttachment3D::notify_skeleton_bones_renamed(Node *p_base_scene, Skeleton3D *p_skeleton, Dictionary p_rename_map) {
const Skeleton3D *parent = nullptr;
if (use_external_skeleton) {
if (external_skeleton_node_cache.is_valid()) {
parent = Object::cast_to<Skeleton3D>(ObjectDB::get_instance(external_skeleton_node_cache));
}
} else {
parent = Object::cast_to<Skeleton3D>(get_parent());
}
if (parent && parent == p_skeleton) {
StringName bn = p_rename_map[bone_name];
if (bn) {
set_bone_name(bn);
}
}
}
void BoneAttachment3D::notify_rebind_required() {
// Ensures bindings are properly updated after a scene reload.
_check_unbind();
if (use_external_skeleton) {
_update_external_skeleton_cache();
}
bone_idx = -1;
_check_bind();
}
#endif // TOOLS_ENABLED
BoneAttachment3D::BoneAttachment3D() {
}
void BoneAttachment3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_bone_name", "bone_name"), &BoneAttachment3D::set_bone_name);
ClassDB::bind_method(D_METHOD("get_bone_name"), &BoneAttachment3D::get_bone_name);
ClassDB::bind_method(D_METHOD("set_bone_idx", "bone_idx"), &BoneAttachment3D::set_bone_idx);
ClassDB::bind_method(D_METHOD("get_bone_idx"), &BoneAttachment3D::get_bone_idx);
ClassDB::bind_method(D_METHOD("on_skeleton_update"), &BoneAttachment3D::on_skeleton_update);
ClassDB::bind_method(D_METHOD("set_override_pose", "override_pose"), &BoneAttachment3D::set_override_pose);
ClassDB::bind_method(D_METHOD("get_override_pose"), &BoneAttachment3D::get_override_pose);
ClassDB::bind_method(D_METHOD("set_use_external_skeleton", "use_external_skeleton"), &BoneAttachment3D::set_use_external_skeleton);
ClassDB::bind_method(D_METHOD("get_use_external_skeleton"), &BoneAttachment3D::get_use_external_skeleton);
ClassDB::bind_method(D_METHOD("set_external_skeleton", "external_skeleton"), &BoneAttachment3D::set_external_skeleton);
ClassDB::bind_method(D_METHOD("get_external_skeleton"), &BoneAttachment3D::get_external_skeleton);
ADD_PROPERTY(PropertyInfo(Variant::STRING_NAME, "bone_name"), "set_bone_name", "get_bone_name");
ADD_PROPERTY(PropertyInfo(Variant::INT, "bone_idx"), "set_bone_idx", "get_bone_idx");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "override_pose"), "set_override_pose", "get_override_pose");
}
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