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#include "skeleton_2d.h"
void Bone2D::_notification(int p_what) {
if (p_what == NOTIFICATION_ENTER_TREE) {
Node *parent = get_parent();
parent_bone = Object::cast_to<Bone2D>(parent);
skeleton = NULL;
while (parent) {
skeleton = Object::cast_to<Skeleton2D>(parent);
if (skeleton)
break;
if (!Object::cast_to<Bone2D>(parent))
break; //skeletons must be chained to Bone2Ds.
}
if (skeleton) {
Skeleton2D::Bone bone;
bone.bone = this;
skeleton->bones.push_back(bone);
skeleton->_make_bone_setup_dirty();
}
}
if (p_what == NOTIFICATION_LOCAL_TRANSFORM_CHANGED) {
if (skeleton) {
skeleton->_make_transform_dirty();
}
}
if (p_what == NOTIFICATION_EXIT_TREE) {
if (skeleton) {
for (int i = 0; i < skeleton->bones.size(); i++) {
if (skeleton->bones[i].bone == this) {
skeleton->bones.remove(i);
break;
}
}
skeleton->_make_bone_setup_dirty();
skeleton = NULL;
}
parent_bone = NULL;
}
}
void Bone2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_rest", "rest"), &Bone2D::set_rest);
ClassDB::bind_method(D_METHOD("get_rest"), &Bone2D::get_rest);
ClassDB::bind_method(D_METHOD("apply_rest"), &Bone2D::apply_rest);
}
void Bone2D::set_rest(const Transform2D &p_rest) {
rest = p_rest;
if (skeleton)
skeleton->_make_bone_setup_dirty();
}
Transform2D Bone2D::get_rest() const {
return rest;
}
Transform2D Bone2D::get_skeleton_rest() const {
if (parent_bone) {
return parent_bone->get_skeleton_rest() * rest;
} else {
return rest;
}
}
void Bone2D::apply_rest() {
set_transform(rest);
}
String Bone2D::get_configuration_warning() const {
if (!skeleton) {
if (parent_bone) {
return TTR("This Bone2D chain should end at a Skeleton2D node.");
} else {
return TTR("A Bone2D only works with a Skeleton2D or another Bone2D as parent node.");
}
}
return Node2D::get_configuration_warning();
}
Bone2D::Bone2D() {
skeleton = NULL;
parent_bone = NULL;
set_notify_local_transform(true);
}
//////////////////////////////////////
void Skeleton2D::_make_bone_setup_dirty() {
if (bone_setup_dirty)
return;
bone_setup_dirty = true;
if (is_inside_tree()) {
call_deferred("_update_bone_setup");
}
}
void Skeleton2D::_update_bone_setup() {
if (!bone_setup_dirty)
return;
bone_setup_dirty = false;
VS::get_singleton()->skeleton_allocate(skeleton, bones.size(), true);
bones.sort(); //sorty so they are always in the same order/index
for (int i = 0; i < bones.size(); i++) {
bones[i].rest_inverse = bones[i].bone->get_skeleton_rest(); //bind pose
}
transform_dirty = true;
_update_transform();
}
void Skeleton2D::_make_transform_dirty() {
if (transform_dirty)
return;
transform_dirty = true;
if (is_inside_tree()) {
call_deferred("_update_transform");
}
}
void Skeleton2D::_update_transform() {
if (bone_setup_dirty) {
_update_bone_setup();
return; //above will update transform anyway
}
if (!transform_dirty)
return;
transform_dirty = false;
Transform2D global_xform = get_global_transform();
Transform2D global_xform_inverse = global_xform.affine_inverse();
for (int i = 0; i < bones.size(); i++) {
Transform2D final_xform = bones[i].rest_inverse * bones[i].bone->get_relative_transform_to_parent(this);
VS::get_singleton()->skeleton_bone_set_transform_2d(skeleton, i, global_xform * (final_xform * global_xform_inverse));
}
}
int Skeleton2D::get_bone_count() const {
ERR_FAIL_COND_V(!is_inside_tree(), 0);
if (bone_setup_dirty) {
const_cast<Skeleton2D *>(this)->_update_bone_setup();
}
return bones.size();
}
Bone2D *Skeleton2D::get_bone(int p_idx) {
ERR_FAIL_COND_V(!is_inside_tree(), NULL);
ERR_FAIL_INDEX_V(p_idx, bones.size(), NULL);
return bones[p_idx].bone;
}
void Skeleton2D::_notification(int p_what) {
if (p_what == NOTIFICATION_READY) {
if (bone_setup_dirty)
_update_bone_setup();
if (transform_dirty)
_update_transform();
}
if (p_what == NOTIFICATION_TRANSFORM_CHANGED) {
_make_transform_dirty();
}
}
RID Skeleton2D::get_skeleton() const {
return skeleton;
}
void Skeleton2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("_update_bone_setup"), &Skeleton2D::_update_bone_setup);
ClassDB::bind_method(D_METHOD("_update_transform"), &Skeleton2D::_update_transform);
ClassDB::bind_method(D_METHOD("get_bone_count"), &Skeleton2D::get_bone_count);
ClassDB::bind_method(D_METHOD("get_bone"), &Skeleton2D::get_bone);
ClassDB::bind_method(D_METHOD("get_skeleton"), &Skeleton2D::get_skeleton);
}
Skeleton2D::Skeleton2D() {
bone_setup_dirty = true;
transform_dirty = true;
skeleton = VS::get_singleton()->skeleton_create();
}
Skeleton2D::~Skeleton2D() {
VS::get_singleton()->free(skeleton);
}
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