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animation_mixer.cpp
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animation_mixer.cpp
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/**************************************************************************/
/* animation_mixer.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 "animation_mixer.h"
#include "core/config/engine.h"
#include "scene/animation/animation_player.h"
#include "scene/resources/animation.h"
#include "scene/scene_string_names.h"
#include "servers/audio/audio_stream.h"
#ifdef TOOLS_ENABLED
#include "editor/editor_node.h"
#include "editor/editor_undo_redo_manager.h"
#endif // TOOLS_ENABLED
bool AnimationMixer::_set(const StringName &p_name, const Variant &p_value) {
String name = p_name;
#ifndef DISABLE_DEPRECATED
if (name.begins_with("anims/")) {
// Backwards compatibility with 3.x, add them to "default" library.
String which = name.get_slicec('/', 1);
Ref<Animation> anim = p_value;
Ref<AnimationLibrary> al;
if (!has_animation_library(StringName())) {
al.instantiate();
add_animation_library(StringName(), al);
} else {
al = get_animation_library(StringName());
}
al->add_animation(which, anim);
} else if (name.begins_with("libraries")) {
#else
if (name.begins_with("libraries")) {
#endif // DISABLE_DEPRECATED
Dictionary d = p_value;
while (animation_libraries.size()) {
remove_animation_library(animation_libraries[0].name);
}
List<Variant> keys;
d.get_key_list(&keys);
for (const Variant &K : keys) {
StringName lib_name = K;
Ref<AnimationLibrary> lib = d[lib_name];
add_animation_library(lib_name, lib);
}
emit_signal(SNAME("animation_libraries_updated"));
} else {
return false;
}
return true;
}
bool AnimationMixer::_get(const StringName &p_name, Variant &r_ret) const {
String name = p_name;
if (name.begins_with("libraries")) {
Dictionary d;
for (const AnimationLibraryData &lib : animation_libraries) {
d[lib.name] = lib.library;
}
r_ret = d;
} else {
return false;
}
return true;
}
void AnimationMixer::_get_property_list(List<PropertyInfo> *p_list) const {
List<PropertyInfo> anim_names;
anim_names.push_back(PropertyInfo(Variant::DICTIONARY, PNAME("libraries")));
for (const PropertyInfo &E : anim_names) {
p_list->push_back(E);
}
for (PropertyInfo &E : *p_list) {
_validate_property(E);
}
}
void AnimationMixer::_validate_property(PropertyInfo &p_property) const {
#ifdef TOOLS_ENABLED
if (editing && (p_property.name == "active" || p_property.name == "deterministic" || p_property.name == "root_motion_track")) {
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
}
#endif // TOOLS_ENABLED
}
/* -------------------------------------------- */
/* -- Data lists ------------------------------ */
/* -------------------------------------------- */
void AnimationMixer::_animation_set_cache_update() {
// Relatively fast function to update all animations.
animation_set_update_pass++;
bool clear_cache_needed = false;
// Update changed and add otherwise.
for (const AnimationLibraryData &lib : animation_libraries) {
for (const KeyValue<StringName, Ref<Animation>> &K : lib.library->animations) {
StringName key = lib.name == StringName() ? K.key : StringName(String(lib.name) + "/" + String(K.key));
if (!animation_set.has(key)) {
AnimationData ad;
ad.animation = K.value;
ad.animation_library = lib.name;
ad.name = key;
ad.last_update = animation_set_update_pass;
animation_set.insert(ad.name, ad);
} else {
AnimationData &ad = animation_set[key];
if (ad.last_update != animation_set_update_pass) {
// Was not updated, update. If the animation is duplicated, the second one will be ignored.
if (ad.animation != K.value || ad.animation_library != lib.name) {
// Animation changed, update and clear caches.
clear_cache_needed = true;
ad.animation = K.value;
ad.animation_library = lib.name;
}
ad.last_update = animation_set_update_pass;
}
}
}
}
// Check removed.
List<StringName> to_erase;
for (const KeyValue<StringName, AnimationData> &E : animation_set) {
if (E.value.last_update != animation_set_update_pass) {
// Was not updated, must be erased.
to_erase.push_back(E.key);
clear_cache_needed = true;
}
}
while (to_erase.size()) {
animation_set.erase(to_erase.front()->get());
to_erase.pop_front();
}
if (clear_cache_needed) {
// If something was modified or removed, caches need to be cleared.
_clear_caches();
}
emit_signal(SNAME("animation_list_changed"));
}
void AnimationMixer::_animation_added(const StringName &p_name, const StringName &p_library) {
_animation_set_cache_update();
}
void AnimationMixer::_animation_removed(const StringName &p_name, const StringName &p_library) {
StringName name = p_library == StringName() ? p_name : StringName(String(p_library) + "/" + String(p_name));
if (!animation_set.has(name)) {
return; // No need to update because not the one from the library being used.
}
_animation_set_cache_update();
_remove_animation(name);
}
void AnimationMixer::_animation_renamed(const StringName &p_name, const StringName &p_to_name, const StringName &p_library) {
StringName from_name = p_library == StringName() ? p_name : StringName(String(p_library) + "/" + String(p_name));
StringName to_name = p_library == StringName() ? p_to_name : StringName(String(p_library) + "/" + String(p_to_name));
if (!animation_set.has(from_name)) {
return; // No need to update because not the one from the library being used.
}
_animation_set_cache_update();
_rename_animation(from_name, to_name);
}
void AnimationMixer::_animation_changed(const StringName &p_name) {
_clear_caches();
}
void AnimationMixer::_set_active(bool p_active) {
//
}
void AnimationMixer::_remove_animation(const StringName &p_name) {
//
}
void AnimationMixer::_rename_animation(const StringName &p_from_name, const StringName &p_to_name) {
//
}
TypedArray<StringName> AnimationMixer::_get_animation_library_list() const {
TypedArray<StringName> ret;
for (const AnimationLibraryData &lib : animation_libraries) {
ret.push_back(lib.name);
}
return ret;
}
void AnimationMixer::get_animation_library_list(List<StringName> *p_libraries) const {
for (const AnimationLibraryData &lib : animation_libraries) {
p_libraries->push_back(lib.name);
}
}
Ref<AnimationLibrary> AnimationMixer::get_animation_library(const StringName &p_name) const {
for (const AnimationLibraryData &lib : animation_libraries) {
if (lib.name == p_name) {
return lib.library;
}
}
ERR_FAIL_V(Ref<AnimationLibrary>());
}
bool AnimationMixer::has_animation_library(const StringName &p_name) const {
for (const AnimationLibraryData &lib : animation_libraries) {
if (lib.name == p_name) {
return true;
}
}
return false;
}
StringName AnimationMixer::find_animation_library(const Ref<Animation> &p_animation) const {
for (const KeyValue<StringName, AnimationData> &E : animation_set) {
if (E.value.animation == p_animation) {
return E.value.animation_library;
}
}
return StringName();
}
Error AnimationMixer::add_animation_library(const StringName &p_name, const Ref<AnimationLibrary> &p_animation_library) {
ERR_FAIL_COND_V(p_animation_library.is_null(), ERR_INVALID_PARAMETER);
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_V_MSG(String(p_name).contains("/") || String(p_name).contains(":") || String(p_name).contains(",") || String(p_name).contains("["), ERR_INVALID_PARAMETER, "Invalid animation name: " + String(p_name) + ".");
#endif
int insert_pos = 0;
for (const AnimationLibraryData &lib : animation_libraries) {
ERR_FAIL_COND_V_MSG(lib.name == p_name, ERR_ALREADY_EXISTS, "Can't add animation library twice with name: " + String(p_name));
ERR_FAIL_COND_V_MSG(lib.library == p_animation_library, ERR_ALREADY_EXISTS, "Can't add animation library twice (adding as '" + p_name.operator String() + "', exists as '" + lib.name.operator String() + "'.");
if (lib.name.operator String() >= p_name.operator String()) {
break;
}
insert_pos++;
}
AnimationLibraryData ald;
ald.name = p_name;
ald.library = p_animation_library;
animation_libraries.insert(insert_pos, ald);
ald.library->connect(SNAME("animation_added"), callable_mp(this, &AnimationMixer::_animation_added).bind(p_name));
ald.library->connect(SNAME("animation_removed"), callable_mp(this, &AnimationMixer::_animation_removed).bind(p_name));
ald.library->connect(SNAME("animation_renamed"), callable_mp(this, &AnimationMixer::_animation_renamed).bind(p_name));
ald.library->connect(SNAME("animation_changed"), callable_mp(this, &AnimationMixer::_animation_changed));
_animation_set_cache_update();
notify_property_list_changed();
return OK;
}
void AnimationMixer::remove_animation_library(const StringName &p_name) {
int at_pos = -1;
for (uint32_t i = 0; i < animation_libraries.size(); i++) {
if (animation_libraries[i].name == p_name) {
at_pos = i;
break;
}
}
ERR_FAIL_COND(at_pos == -1);
animation_libraries[at_pos].library->disconnect(SNAME("animation_added"), callable_mp(this, &AnimationMixer::_animation_added));
animation_libraries[at_pos].library->disconnect(SNAME("animation_removed"), callable_mp(this, &AnimationMixer::_animation_removed));
animation_libraries[at_pos].library->disconnect(SNAME("animation_renamed"), callable_mp(this, &AnimationMixer::_animation_renamed));
animation_libraries[at_pos].library->disconnect(SNAME("animation_changed"), callable_mp(this, &AnimationMixer::_animation_changed));
animation_libraries.remove_at(at_pos);
_animation_set_cache_update();
notify_property_list_changed();
}
void AnimationMixer::rename_animation_library(const StringName &p_name, const StringName &p_new_name) {
if (p_name == p_new_name) {
return;
}
#ifdef DEBUG_ENABLED
ERR_FAIL_COND_MSG(String(p_new_name).contains("/") || String(p_new_name).contains(":") || String(p_new_name).contains(",") || String(p_new_name).contains("["), "Invalid animation library name: " + String(p_new_name) + ".");
#endif
bool found = false;
for (AnimationLibraryData &lib : animation_libraries) {
ERR_FAIL_COND_MSG(lib.name == p_new_name, "Can't rename animation library to another existing name: " + String(p_new_name) + ".");
if (lib.name == p_name) {
found = true;
lib.name = p_new_name;
// rename connections
lib.library->disconnect(SNAME("animation_added"), callable_mp(this, &AnimationMixer::_animation_added));
lib.library->disconnect(SNAME("animation_removed"), callable_mp(this, &AnimationMixer::_animation_removed));
lib.library->disconnect(SNAME("animation_renamed"), callable_mp(this, &AnimationMixer::_animation_renamed));
lib.library->connect(SNAME("animation_added"), callable_mp(this, &AnimationMixer::_animation_added).bind(p_new_name));
lib.library->connect(SNAME("animation_removed"), callable_mp(this, &AnimationMixer::_animation_removed).bind(p_new_name));
lib.library->connect(SNAME("animation_renamed"), callable_mp(this, &AnimationMixer::_animation_renamed).bind(p_new_name));
for (const KeyValue<StringName, Ref<Animation>> &K : lib.library->animations) {
StringName old_name = p_name == StringName() ? K.key : StringName(String(p_name) + "/" + String(K.key));
StringName new_name = p_new_name == StringName() ? K.key : StringName(String(p_new_name) + "/" + String(K.key));
_rename_animation(old_name, new_name);
}
}
}
ERR_FAIL_COND(!found);
animation_libraries.sort(); // Must keep alphabetical order.
_animation_set_cache_update(); // Update cache.
notify_property_list_changed();
}
void AnimationMixer::get_animation_list(List<StringName> *p_animations) const {
List<String> anims;
for (const KeyValue<StringName, AnimationData> &E : animation_set) {
anims.push_back(E.key);
}
anims.sort();
for (const String &E : anims) {
p_animations->push_back(E);
}
}
Ref<Animation> AnimationMixer::get_animation(const StringName &p_name) const {
ERR_FAIL_COND_V_MSG(!animation_set.has(p_name), Ref<Animation>(), vformat("Animation not found: \"%s\".", p_name));
const AnimationData &anim_data = animation_set[p_name];
return anim_data.animation;
}
bool AnimationMixer::has_animation(const StringName &p_name) const {
return animation_set.has(p_name);
}
StringName AnimationMixer::find_animation(const Ref<Animation> &p_animation) const {
for (const KeyValue<StringName, AnimationData> &E : animation_set) {
if (E.value.animation == p_animation) {
return E.key;
}
}
return StringName();
}
/* -------------------------------------------- */
/* -- General settings for animation ---------- */
/* -------------------------------------------- */
void AnimationMixer::_set_process(bool p_process, bool p_force) {
if (processing == p_process && !p_force) {
return;
}
switch (callback_mode_process) {
case ANIMATION_CALLBACK_MODE_PROCESS_PHYSICS:
#ifdef TOOLS_ENABLED
set_physics_process_internal(p_process && active && !editing);
#else
set_physics_process_internal(p_process && active);
#endif // TOOLS_ENABLED
break;
case ANIMATION_CALLBACK_MODE_PROCESS_IDLE:
#ifdef TOOLS_ENABLED
set_process_internal(p_process && active && !editing);
#else
set_process_internal(p_process && active);
#endif // TOOLS_ENABLED
break;
case ANIMATION_CALLBACK_MODE_PROCESS_MANUAL:
break;
}
processing = p_process;
}
void AnimationMixer::set_active(bool p_active) {
if (active == p_active) {
return;
}
active = p_active;
_set_active(active);
_set_process(processing, true);
if (!active && is_inside_tree()) {
_clear_caches();
}
}
bool AnimationMixer::is_active() const {
return active;
}
void AnimationMixer::set_root_node(const NodePath &p_path) {
root_node = p_path;
_clear_caches();
}
NodePath AnimationMixer::get_root_node() const {
return root_node;
}
void AnimationMixer::set_deterministic(bool p_deterministic) {
deterministic = p_deterministic;
_clear_caches();
}
bool AnimationMixer::is_deterministic() const {
return deterministic;
}
void AnimationMixer::set_callback_mode_process(AnimationCallbackModeProcess p_mode) {
if (callback_mode_process == p_mode) {
return;
}
bool was_active = is_active();
if (was_active) {
set_active(false);
}
callback_mode_process = p_mode;
if (was_active) {
set_active(true);
}
#ifdef TOOLS_ENABLED
emit_signal(SNAME("mixer_updated"));
#endif // TOOLS_ENABLED
}
AnimationMixer::AnimationCallbackModeProcess AnimationMixer::get_callback_mode_process() const {
return callback_mode_process;
}
void AnimationMixer::set_callback_mode_method(AnimationCallbackModeMethod p_mode) {
callback_mode_method = p_mode;
#ifdef TOOLS_ENABLED
emit_signal(SNAME("mixer_updated"));
#endif // TOOLS_ENABLED
}
AnimationMixer::AnimationCallbackModeMethod AnimationMixer::get_callback_mode_method() const {
return callback_mode_method;
}
void AnimationMixer::set_audio_max_polyphony(int p_audio_max_polyphony) {
ERR_FAIL_COND(p_audio_max_polyphony < 0 || p_audio_max_polyphony > 128);
audio_max_polyphony = p_audio_max_polyphony;
}
int AnimationMixer::get_audio_max_polyphony() const {
return audio_max_polyphony;
}
#ifdef TOOLS_ENABLED
void AnimationMixer::set_editing(bool p_editing) {
if (editing == p_editing) {
return;
}
editing = p_editing;
_set_process(processing, true);
if (editing && is_inside_tree()) {
_clear_caches();
}
notify_property_list_changed(); // To make active readonly.
}
bool AnimationMixer::is_editing() const {
return editing;
}
void AnimationMixer::set_dummy(bool p_dummy) {
dummy = p_dummy;
}
bool AnimationMixer::is_dummy() const {
return dummy;
}
#endif // TOOLS_ENABLED
/* -------------------------------------------- */
/* -- Caches for blending --------------------- */
/* -------------------------------------------- */
void AnimationMixer::_clear_caches() {
_init_root_motion_cache();
_clear_audio_streams();
_clear_playing_caches();
for (KeyValue<NodePath, TrackCache *> &K : track_cache) {
memdelete(K.value);
}
track_cache.clear();
cache_valid = false;
emit_signal(SNAME("caches_cleared"));
}
void AnimationMixer::_clear_audio_streams() {
for (int i = 0; i < playing_audio_stream_players.size(); i++) {
playing_audio_stream_players[i]->call(SNAME("stop"));
playing_audio_stream_players[i]->call(SNAME("set_stream"), Ref<AudioStream>());
}
playing_audio_stream_players.clear();
}
void AnimationMixer::_clear_playing_caches() {
for (const TrackCache *E : playing_caches) {
if (ObjectDB::get_instance(E->object_id)) {
E->object->call(SNAME("stop"));
}
}
playing_caches.clear();
}
void AnimationMixer::_init_root_motion_cache() {
root_motion_cache.loc = Vector3(0, 0, 0);
root_motion_cache.rot = Quaternion(0, 0, 0, 1);
root_motion_cache.scale = Vector3(1, 1, 1);
root_motion_position = Vector3(0, 0, 0);
root_motion_rotation = Quaternion(0, 0, 0, 1);
root_motion_scale = Vector3(0, 0, 0);
root_motion_position_accumulator = Vector3(0, 0, 0);
root_motion_rotation_accumulator = Quaternion(0, 0, 0, 1);
root_motion_scale_accumulator = Vector3(1, 1, 1);
}
bool AnimationMixer::_update_caches() {
setup_pass++;
root_motion_cache.loc = Vector3(0, 0, 0);
root_motion_cache.rot = Quaternion(0, 0, 0, 1);
root_motion_cache.scale = Vector3(1, 1, 1);
List<StringName> sname;
get_animation_list(&sname);
Node *parent = get_node_or_null(root_node);
if (!parent) {
cache_valid = false;
return false;
}
Ref<Animation> reset_anim;
bool has_reset_anim = has_animation(SceneStringNames::get_singleton()->RESET);
if (has_reset_anim) {
reset_anim = get_animation(SceneStringNames::get_singleton()->RESET);
}
for (const StringName &E : sname) {
Ref<Animation> anim = get_animation(E);
for (int i = 0; i < anim->get_track_count(); i++) {
NodePath path = anim->track_get_path(i);
Animation::TrackType track_type = anim->track_get_type(i);
Animation::TrackType track_cache_type = track_type;
if (track_cache_type == Animation::TYPE_POSITION_3D || track_cache_type == Animation::TYPE_ROTATION_3D || track_cache_type == Animation::TYPE_SCALE_3D) {
track_cache_type = Animation::TYPE_POSITION_3D; // Reference them as position3D tracks, even if they modify rotation or scale.
}
TrackCache *track = nullptr;
if (track_cache.has(path)) {
track = track_cache.get(path);
}
// If not valid, delete track.
if (track && (track->type != track_cache_type || ObjectDB::get_instance(track->object_id) == nullptr)) {
playing_caches.erase(track);
memdelete(track);
track_cache.erase(path);
track = nullptr;
}
if (!track) {
Ref<Resource> resource;
Vector<StringName> leftover_path;
Node *child = parent->get_node_and_resource(path, resource, leftover_path);
if (!child) {
ERR_PRINT("AnimationMixer: '" + String(E) + "', couldn't resolve track: '" + String(path) + "'.");
continue;
}
switch (track_type) {
case Animation::TYPE_VALUE: {
TrackCacheValue *track_value = memnew(TrackCacheValue);
if (resource.is_valid()) {
track_value->object = resource.ptr();
} else {
track_value->object = child;
}
track_value->is_continuous = anim->value_track_get_update_mode(i) != Animation::UPDATE_DISCRETE;
track_value->is_using_angle = anim->track_get_interpolation_type(i) == Animation::INTERPOLATION_LINEAR_ANGLE || anim->track_get_interpolation_type(i) == Animation::INTERPOLATION_CUBIC_ANGLE;
track_value->subpath = leftover_path;
track_value->object_id = track_value->object->get_instance_id();
track = track_value;
// If a value track without a key is cached first, the initial value cannot be determined.
// It is a corner case, but which may cause problems with blending.
ERR_CONTINUE_MSG(anim->track_get_key_count(i) == 0, "AnimationMixer: '" + String(E) + "', Value Track: '" + String(path) + "' must have at least one key to cache for blending.");
track_value->init_value = anim->track_get_key_value(i, 0);
track_value->init_value.zero();
// If there is a Reset Animation, it takes precedence by overwriting.
if (has_reset_anim) {
int rt = reset_anim->find_track(path, track_type);
if (rt >= 0 && reset_anim->track_get_key_count(rt) > 0) {
track_value->init_value = reset_anim->track_get_key_value(rt, 0);
}
}
} break;
case Animation::TYPE_POSITION_3D:
case Animation::TYPE_ROTATION_3D:
case Animation::TYPE_SCALE_3D: {
#ifndef _3D_DISABLED
Node3D *node_3d = Object::cast_to<Node3D>(child);
if (!node_3d) {
ERR_PRINT("AnimationMixer: '" + String(E) + "', transform track does not point to Node3D: '" + String(path) + "'.");
continue;
}
TrackCacheTransform *track_xform = memnew(TrackCacheTransform);
track_xform->type = Animation::TYPE_POSITION_3D;
track_xform->node_3d = node_3d;
track_xform->skeleton = nullptr;
track_xform->bone_idx = -1;
bool has_rest = false;
if (path.get_subname_count() == 1 && Object::cast_to<Skeleton3D>(node_3d)) {
Skeleton3D *sk = Object::cast_to<Skeleton3D>(node_3d);
track_xform->skeleton = sk;
int bone_idx = sk->find_bone(path.get_subname(0));
if (bone_idx != -1) {
has_rest = true;
track_xform->bone_idx = bone_idx;
Transform3D rest = sk->get_bone_rest(bone_idx);
track_xform->init_loc = rest.origin;
track_xform->init_rot = rest.basis.get_rotation_quaternion();
track_xform->init_scale = rest.basis.get_scale();
}
}
track_xform->object = node_3d;
track_xform->object_id = track_xform->object->get_instance_id();
track = track_xform;
switch (track_type) {
case Animation::TYPE_POSITION_3D: {
track_xform->loc_used = true;
} break;
case Animation::TYPE_ROTATION_3D: {
track_xform->rot_used = true;
} break;
case Animation::TYPE_SCALE_3D: {
track_xform->scale_used = true;
} break;
default: {
}
}
// For non Skeleton3D bone animation.
if (has_reset_anim && !has_rest) {
int rt = reset_anim->find_track(path, track_type);
if (rt >= 0 && reset_anim->track_get_key_count(rt) > 0) {
switch (track_type) {
case Animation::TYPE_POSITION_3D: {
track_xform->init_loc = reset_anim->track_get_key_value(rt, 0);
} break;
case Animation::TYPE_ROTATION_3D: {
track_xform->init_rot = reset_anim->track_get_key_value(rt, 0);
} break;
case Animation::TYPE_SCALE_3D: {
track_xform->init_scale = reset_anim->track_get_key_value(rt, 0);
} break;
default: {
}
}
}
}
#endif // _3D_DISABLED
} break;
case Animation::TYPE_BLEND_SHAPE: {
#ifndef _3D_DISABLED
if (path.get_subname_count() != 1) {
ERR_PRINT("AnimationMixer: '" + String(E) + "', blend shape track does not contain a blend shape subname: '" + String(path) + "'.");
continue;
}
MeshInstance3D *mesh_3d = Object::cast_to<MeshInstance3D>(child);
if (!mesh_3d) {
ERR_PRINT("AnimationMixer: '" + String(E) + "', blend shape track does not point to MeshInstance3D: '" + String(path) + "'.");
continue;
}
StringName blend_shape_name = path.get_subname(0);
int blend_shape_idx = mesh_3d->find_blend_shape_by_name(blend_shape_name);
if (blend_shape_idx == -1) {
ERR_PRINT("AnimationMixer: '" + String(E) + "', blend shape track points to a non-existing name: '" + String(blend_shape_name) + "'.");
continue;
}
TrackCacheBlendShape *track_bshape = memnew(TrackCacheBlendShape);
track_bshape->mesh_3d = mesh_3d;
track_bshape->shape_index = blend_shape_idx;
track_bshape->object = mesh_3d;
track_bshape->object_id = mesh_3d->get_instance_id();
track = track_bshape;
if (has_reset_anim) {
int rt = reset_anim->find_track(path, track_type);
if (rt >= 0 && reset_anim->track_get_key_count(rt) > 0) {
track_bshape->init_value = reset_anim->track_get_key_value(rt, 0);
}
}
#endif
} break;
case Animation::TYPE_METHOD: {
TrackCacheMethod *track_method = memnew(TrackCacheMethod);
if (resource.is_valid()) {
track_method->object = resource.ptr();
} else {
track_method->object = child;
}
track_method->object_id = track_method->object->get_instance_id();
track = track_method;
} break;
case Animation::TYPE_BEZIER: {
TrackCacheBezier *track_bezier = memnew(TrackCacheBezier);
if (resource.is_valid()) {
track_bezier->object = resource.ptr();
} else {
track_bezier->object = child;
}
track_bezier->subpath = leftover_path;
track_bezier->object_id = track_bezier->object->get_instance_id();
track = track_bezier;
if (has_reset_anim) {
int rt = reset_anim->find_track(path, track_type);
if (rt >= 0 && reset_anim->track_get_key_count(rt) > 0) {
track_bezier->init_value = (reset_anim->track_get_key_value(rt, 0).operator Array())[0];
}
}
} break;
case Animation::TYPE_AUDIO: {
TrackCacheAudio *track_audio = memnew(TrackCacheAudio);
track_audio->object = child;
track_audio->object_id = track_audio->object->get_instance_id();
track_audio->audio_stream.instantiate();
track_audio->audio_stream->set_polyphony(audio_max_polyphony);
track = track_audio;
} break;
case Animation::TYPE_ANIMATION: {
TrackCacheAnimation *track_animation = memnew(TrackCacheAnimation);
track_animation->object = child;
track_animation->object_id = track_animation->object->get_instance_id();
track = track_animation;
} break;
default: {
ERR_PRINT("Animation corrupted (invalid track type).");
continue;
}
}
track_cache[path] = track;
} else if (track_cache_type == Animation::TYPE_POSITION_3D) {
TrackCacheTransform *track_xform = static_cast<TrackCacheTransform *>(track);
if (track->setup_pass != setup_pass) {
track_xform->loc_used = false;
track_xform->rot_used = false;
track_xform->scale_used = false;
}
switch (track_type) {
case Animation::TYPE_POSITION_3D: {
track_xform->loc_used = true;
} break;
case Animation::TYPE_ROTATION_3D: {
track_xform->rot_used = true;
} break;
case Animation::TYPE_SCALE_3D: {
track_xform->scale_used = true;
} break;
default: {
}
}
} else if (track_cache_type == Animation::TYPE_VALUE) {
// If it has at least one angle interpolation, it also uses angle interpolation for blending.
TrackCacheValue *track_value = static_cast<TrackCacheValue *>(track);
bool was_continuous = track_value->is_continuous;
bool was_using_angle = track_value->is_using_angle;
track_value->is_continuous |= anim->value_track_get_update_mode(i) != Animation::UPDATE_DISCRETE;
track_value->is_using_angle |= anim->track_get_interpolation_type(i) == Animation::INTERPOLATION_LINEAR_ANGLE || anim->track_get_interpolation_type(i) == Animation::INTERPOLATION_CUBIC_ANGLE;
// TODO: Currently, misc type cannot be blended.
// In the future, it should have a separate blend weight, just as bool is converted to 0 and 1.
// Then, it should provide the correct precedence value.
bool skip_update_mode_warning = false;
if (track_value->is_continuous) {
if (!Animation::is_variant_interpolatable(track_value->init_value)) {
WARN_PRINT_ONCE_ED("AnimationMixer: '" + String(E) + "', Value Track: '" + String(path) + "' uses a non-numeric type as key value with UpdateMode.UPDATE_CONTINUOUS. This will not be blended correctly, so it is forced to UpdateMode.UPDATE_DISCRETE.");
track_value->is_continuous = false;
skip_update_mode_warning = true;
}
if (track_value->init_value.is_string()) {
WARN_PRINT_ONCE_ED("AnimationMixer: '" + String(E) + "', Value Track: '" + String(path) + "' blends String types. This is an experimental algorithm.");
}
}
if (!skip_update_mode_warning && was_continuous != track_value->is_continuous) {
WARN_PRINT_ONCE_ED("AnimationMixer: '" + String(E) + "', Value Track: '" + String(path) + "' has different update modes between some animations which may be blended together. Blending prioritizes UpdateMode.UPDATE_CONTINUOUS, so the process treats UpdateMode.UPDATE_DISCRETE as UpdateMode.UPDATE_CONTINUOUS with InterpolationType.INTERPOLATION_NEAREST.");
}
if (was_using_angle != track_value->is_using_angle) {
WARN_PRINT_ONCE_ED("AnimationMixer: '" + String(E) + "', Value Track: '" + String(path) + "' has different interpolation types for rotation between some animations which may be blended together. Blending prioritizes angle interpolation, so the blending result uses the shortest path referenced to the initial (RESET animation) value.");
}
}
track->setup_pass = setup_pass;
}
}
List<NodePath> to_delete;
for (const KeyValue<NodePath, TrackCache *> &K : track_cache) {
TrackCache *tc = track_cache[K.key];
if (tc->setup_pass != setup_pass) {
to_delete.push_back(K.key);
}
}
while (to_delete.front()) {
NodePath np = to_delete.front()->get();
memdelete(track_cache[np]);
track_cache.erase(np);
to_delete.pop_front();
}
track_map.clear();
int idx = 0;
for (const KeyValue<NodePath, TrackCache *> &K : track_cache) {
track_map[K.key] = idx;
idx++;
}
track_count = idx;
cache_valid = true;
return true;
}
/* -------------------------------------------- */
/* -- Blending processor ---------------------- */
/* -------------------------------------------- */
void AnimationMixer::_process_animation(double p_delta, bool p_update_only) {
_blend_init();
if (_blend_pre_process(p_delta, track_count, track_map)) {
_blend_calc_total_weight();
_blend_process(p_delta, p_update_only);
_blend_apply();
_blend_post_process();
};
clear_animation_instances();
}
Variant AnimationMixer::post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant p_value, const Object *p_object, int p_object_idx) {
Variant res;
if (GDVIRTUAL_CALL(_post_process_key_value, p_anim, p_track, p_value, const_cast<Object *>(p_object), p_object_idx, res)) {
return res;
}
return _post_process_key_value(p_anim, p_track, p_value, p_object, p_object_idx);
}
Variant AnimationMixer::_post_process_key_value(const Ref<Animation> &p_anim, int p_track, Variant p_value, const Object *p_object, int p_object_idx) {
switch (p_anim->track_get_type(p_track)) {
#ifndef _3D_DISABLED
case Animation::TYPE_POSITION_3D: {
if (p_object_idx >= 0) {
const Skeleton3D *skel = Object::cast_to<Skeleton3D>(p_object);
return Vector3(p_value) * skel->get_motion_scale();
}
return p_value;
} break;
#endif // _3D_DISABLED
default: {
} break;
}
return p_value;
}
void AnimationMixer::_blend_init() {
// Check all tracks, see if they need modification.
root_motion_position = Vector3(0, 0, 0);
root_motion_rotation = Quaternion(0, 0, 0, 1);
root_motion_scale = Vector3(0, 0, 0);
root_motion_position_accumulator = Vector3(0, 0, 0);
root_motion_rotation_accumulator = Quaternion(0, 0, 0, 1);
root_motion_scale_accumulator = Vector3(1, 1, 1);
if (!cache_valid) {
if (!_update_caches()) {
return;
}
}
// Init all value/transform/blend/bezier tracks that track_cache has.
for (const KeyValue<NodePath, TrackCache *> &K : track_cache) {
TrackCache *track = K.value;
track->total_weight = 0.0;
switch (track->type) {
case Animation::TYPE_POSITION_3D: {
TrackCacheTransform *t = static_cast<TrackCacheTransform *>(track);
if (track->root_motion) {
root_motion_cache.loc = Vector3(0, 0, 0);
root_motion_cache.rot = Quaternion(0, 0, 0, 1);
root_motion_cache.scale = Vector3(1, 1, 1);
}
t->loc = t->init_loc;