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animation_tree.cpp
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/*************************************************************************/
/* animation_tree.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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_tree.h"
#include "animation_blend_tree.h"
#include "core/engine.h"
#include "core/method_bind_ext.gen.inc"
#include "scene/scene_string_names.h"
#include "servers/audio/audio_stream.h"
void AnimationNode::get_parameter_list(List<PropertyInfo> *r_list) const {
if (get_script_instance()) {
Array parameters = get_script_instance()->call("get_parameter_list");
for (int i = 0; i < parameters.size(); i++) {
Dictionary d = parameters[i];
ERR_CONTINUE(d.empty());
r_list->push_back(PropertyInfo::from_dict(d));
}
}
}
Variant AnimationNode::get_parameter_default_value(const StringName &p_parameter) const {
if (get_script_instance()) {
return get_script_instance()->call("get_parameter_default_value", p_parameter);
}
return Variant();
}
void AnimationNode::set_parameter(const StringName &p_name, const Variant &p_value) {
ERR_FAIL_COND(!state);
ERR_FAIL_COND(!state->tree->property_parent_map.has(base_path));
ERR_FAIL_COND(!state->tree->property_parent_map[base_path].has(p_name));
StringName path = state->tree->property_parent_map[base_path][p_name];
state->tree->property_map[path] = p_value;
}
Variant AnimationNode::get_parameter(const StringName &p_name) const {
ERR_FAIL_COND_V(!state, Variant());
ERR_FAIL_COND_V(!state->tree->property_parent_map.has(base_path), Variant());
ERR_FAIL_COND_V(!state->tree->property_parent_map[base_path].has(p_name), Variant());
StringName path = state->tree->property_parent_map[base_path][p_name];
return state->tree->property_map[path];
}
void AnimationNode::get_child_nodes(List<ChildNode> *r_child_nodes) {
if (get_script_instance()) {
Dictionary cn = get_script_instance()->call("get_child_nodes");
List<Variant> keys;
cn.get_key_list(&keys);
for (List<Variant>::Element *E = keys.front(); E; E = E->next()) {
ChildNode child;
child.name = E->get();
child.node = cn[E->get()];
r_child_nodes->push_back(child);
}
}
}
void AnimationNode::blend_animation(const StringName &p_animation, float p_time, float p_delta, bool p_seeked, float p_blend) {
ERR_FAIL_COND(!state);
ERR_FAIL_COND(!state->player->has_animation(p_animation));
Ref<Animation> animation = state->player->get_animation(p_animation);
if (animation.is_null()) {
AnimationNodeBlendTree *btree = Object::cast_to<AnimationNodeBlendTree>(parent);
if (btree) {
String name = btree->get_node_name(Ref<AnimationNodeAnimation>(this));
make_invalid(vformat(RTR("In node '%s', invalid animation: '%s'."), name, p_animation));
} else {
make_invalid(vformat(RTR("Invalid animation: '%s'."), p_animation));
}
return;
}
ERR_FAIL_COND(!animation.is_valid());
AnimationState anim_state;
anim_state.blend = p_blend;
anim_state.track_blends = &blends;
anim_state.delta = p_delta;
anim_state.time = p_time;
anim_state.animation = animation;
anim_state.seeked = p_seeked;
state->animation_states.push_back(anim_state);
}
float AnimationNode::_pre_process(const StringName &p_base_path, AnimationNode *p_parent, State *p_state, float p_time, bool p_seek, const Vector<StringName> &p_connections) {
base_path = p_base_path;
parent = p_parent;
connections = p_connections;
state = p_state;
float t = process(p_time, p_seek);
state = nullptr;
parent = nullptr;
base_path = StringName();
connections.clear();
return t;
}
void AnimationNode::make_invalid(const String &p_reason) {
ERR_FAIL_COND(!state);
state->valid = false;
if (state->invalid_reasons != String()) {
state->invalid_reasons += "\n";
}
state->invalid_reasons += "- " + p_reason;
}
float AnimationNode::blend_input(int p_input, float p_time, bool p_seek, float p_blend, FilterAction p_filter, bool p_optimize) {
ERR_FAIL_INDEX_V(p_input, inputs.size(), 0);
ERR_FAIL_COND_V(!state, 0);
AnimationNodeBlendTree *blend_tree = Object::cast_to<AnimationNodeBlendTree>(parent);
ERR_FAIL_COND_V(!blend_tree, 0);
StringName node_name = connections[p_input];
if (!blend_tree->has_node(node_name)) {
String name = blend_tree->get_node_name(Ref<AnimationNode>(this));
make_invalid(vformat(RTR("Nothing connected to input '%s' of node '%s'."), get_input_name(p_input), name));
return 0;
}
Ref<AnimationNode> node = blend_tree->get_node(node_name);
//inputs.write[p_input].last_pass = state->last_pass;
float activity = 0;
float ret = _blend_node(node_name, blend_tree->get_node_connection_array(node_name), nullptr, node, p_time, p_seek, p_blend, p_filter, p_optimize, &activity);
Vector<AnimationTree::Activity> *activity_ptr = state->tree->input_activity_map.getptr(base_path);
if (activity_ptr && p_input < activity_ptr->size()) {
activity_ptr->write[p_input].last_pass = state->last_pass;
activity_ptr->write[p_input].activity = activity;
}
return ret;
}
float AnimationNode::blend_node(const StringName &p_sub_path, Ref<AnimationNode> p_node, float p_time, bool p_seek, float p_blend, FilterAction p_filter, bool p_optimize) {
return _blend_node(p_sub_path, Vector<StringName>(), this, p_node, p_time, p_seek, p_blend, p_filter, p_optimize);
}
float AnimationNode::_blend_node(const StringName &p_subpath, const Vector<StringName> &p_connections, AnimationNode *p_new_parent, Ref<AnimationNode> p_node, float p_time, bool p_seek, float p_blend, FilterAction p_filter, bool p_optimize, float *r_max) {
ERR_FAIL_COND_V(!p_node.is_valid(), 0);
ERR_FAIL_COND_V(!state, 0);
int blend_count = blends.size();
if (p_node->blends.size() != blend_count) {
p_node->blends.resize(blend_count);
}
float *blendw = p_node->blends.ptrw();
const float *blendr = blends.ptr();
bool any_valid = false;
if (has_filter() && is_filter_enabled() && p_filter != FILTER_IGNORE) {
for (int i = 0; i < blend_count; i++) {
blendw[i] = 0.0; //all to zero by default
}
const NodePath *K = nullptr;
while ((K = filter.next(K))) {
if (!state->track_map.has(*K)) {
continue;
}
int idx = state->track_map[*K];
blendw[idx] = 1.0; //filtered goes to one
}
switch (p_filter) {
case FILTER_IGNORE:
break; //will not happen anyway
case FILTER_PASS: {
//values filtered pass, the rest don't
for (int i = 0; i < blend_count; i++) {
if (blendw[i] == 0) { //not filtered, does not pass
continue;
}
blendw[i] = blendr[i] * p_blend;
if (blendw[i] > CMP_EPSILON) {
any_valid = true;
}
}
} break;
case FILTER_STOP: {
//values filtered don't pass, the rest are blended
for (int i = 0; i < blend_count; i++) {
if (blendw[i] > 0) { //filtered, does not pass
continue;
}
blendw[i] = blendr[i] * p_blend;
if (blendw[i] > CMP_EPSILON) {
any_valid = true;
}
}
} break;
case FILTER_BLEND: {
//filtered values are blended, the rest are passed without blending
for (int i = 0; i < blend_count; i++) {
if (blendw[i] == 1.0) {
blendw[i] = blendr[i] * p_blend; //filtered, blend
} else {
blendw[i] = blendr[i]; //not filtered, do not blend
}
if (blendw[i] > CMP_EPSILON) {
any_valid = true;
}
}
} break;
}
} else {
for (int i = 0; i < blend_count; i++) {
//regular blend
blendw[i] = blendr[i] * p_blend;
if (blendw[i] > CMP_EPSILON) {
any_valid = true;
}
}
}
if (r_max) {
*r_max = 0;
for (int i = 0; i < blend_count; i++) {
*r_max = MAX(*r_max, blendw[i]);
}
}
if (!p_seek && p_optimize && !any_valid) { //pointless to go on, all are zero
return 0;
}
String new_path;
AnimationNode *new_parent;
//this is the slowest part of processing, but as strings process in powers of 2, and the paths always exist, it will not result in that many allocations
if (p_new_parent) {
new_parent = p_new_parent;
new_path = String(base_path) + String(p_subpath) + "/";
} else {
ERR_FAIL_COND_V(!parent, 0);
new_parent = parent;
new_path = String(parent->base_path) + String(p_subpath) + "/";
}
return p_node->_pre_process(new_path, new_parent, state, p_time, p_seek, p_connections);
}
int AnimationNode::get_input_count() const {
return inputs.size();
}
String AnimationNode::get_input_name(int p_input) {
ERR_FAIL_INDEX_V(p_input, inputs.size(), String());
return inputs[p_input].name;
}
String AnimationNode::get_caption() const {
if (get_script_instance()) {
return get_script_instance()->call("get_caption");
}
return "Node";
}
void AnimationNode::add_input(const String &p_name) {
//root nodes can't add inputs
ERR_FAIL_COND(Object::cast_to<AnimationRootNode>(this) != nullptr);
Input input;
ERR_FAIL_COND(p_name.find(".") != -1 || p_name.find("/") != -1);
input.name = p_name;
inputs.push_back(input);
emit_changed();
}
void AnimationNode::set_input_name(int p_input, const String &p_name) {
ERR_FAIL_INDEX(p_input, inputs.size());
ERR_FAIL_COND(p_name.find(".") != -1 || p_name.find("/") != -1);
inputs.write[p_input].name = p_name;
emit_changed();
}
void AnimationNode::remove_input(int p_index) {
ERR_FAIL_INDEX(p_index, inputs.size());
inputs.remove(p_index);
emit_changed();
}
float AnimationNode::process(float p_time, bool p_seek) {
if (get_script_instance()) {
return get_script_instance()->call("process", p_time, p_seek);
}
return 0;
}
void AnimationNode::set_filter_path(const NodePath &p_path, bool p_enable) {
if (p_enable) {
filter[p_path] = true;
} else {
filter.erase(p_path);
}
}
void AnimationNode::set_filter_enabled(bool p_enable) {
filter_enabled = p_enable;
}
bool AnimationNode::is_filter_enabled() const {
return filter_enabled;
}
bool AnimationNode::is_path_filtered(const NodePath &p_path) const {
return filter.has(p_path);
}
bool AnimationNode::has_filter() const {
return false;
}
Array AnimationNode::_get_filters() const {
Array paths;
const NodePath *K = nullptr;
while ((K = filter.next(K))) {
paths.push_back(String(*K)); //use strings, so sorting is possible
}
paths.sort(); //done so every time the scene is saved, it does not change
return paths;
}
void AnimationNode::_set_filters(const Array &p_filters) {
filter.clear();
for (int i = 0; i < p_filters.size(); i++) {
set_filter_path(p_filters[i], true);
}
}
void AnimationNode::_validate_property(PropertyInfo &property) const {
if (!has_filter() && (property.name == "filter_enabled" || property.name == "filters")) {
property.usage = 0;
}
}
Ref<AnimationNode> AnimationNode::get_child_by_name(const StringName &p_name) {
if (get_script_instance()) {
return get_script_instance()->call("get_child_by_name", p_name);
}
return Ref<AnimationNode>();
}
void AnimationNode::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_input_count"), &AnimationNode::get_input_count);
ClassDB::bind_method(D_METHOD("get_input_name", "input"), &AnimationNode::get_input_name);
ClassDB::bind_method(D_METHOD("add_input", "name"), &AnimationNode::add_input);
ClassDB::bind_method(D_METHOD("remove_input", "index"), &AnimationNode::remove_input);
ClassDB::bind_method(D_METHOD("set_filter_path", "path", "enable"), &AnimationNode::set_filter_path);
ClassDB::bind_method(D_METHOD("is_path_filtered", "path"), &AnimationNode::is_path_filtered);
ClassDB::bind_method(D_METHOD("set_filter_enabled", "enable"), &AnimationNode::set_filter_enabled);
ClassDB::bind_method(D_METHOD("is_filter_enabled"), &AnimationNode::is_filter_enabled);
ClassDB::bind_method(D_METHOD("_set_filters", "filters"), &AnimationNode::_set_filters);
ClassDB::bind_method(D_METHOD("_get_filters"), &AnimationNode::_get_filters);
ClassDB::bind_method(D_METHOD("blend_animation", "animation", "time", "delta", "seeked", "blend"), &AnimationNode::blend_animation);
ClassDB::bind_method(D_METHOD("blend_node", "name", "node", "time", "seek", "blend", "filter", "optimize"), &AnimationNode::blend_node, DEFVAL(FILTER_IGNORE), DEFVAL(true));
ClassDB::bind_method(D_METHOD("blend_input", "input_index", "time", "seek", "blend", "filter", "optimize"), &AnimationNode::blend_input, DEFVAL(FILTER_IGNORE), DEFVAL(true));
ClassDB::bind_method(D_METHOD("set_parameter", "name", "value"), &AnimationNode::set_parameter);
ClassDB::bind_method(D_METHOD("get_parameter", "name"), &AnimationNode::get_parameter);
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter_enabled", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_filter_enabled", "is_filter_enabled");
ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "filters", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_filters", "_get_filters");
BIND_VMETHOD(MethodInfo(Variant::DICTIONARY, "get_child_nodes"));
BIND_VMETHOD(MethodInfo(Variant::ARRAY, "get_parameter_list"));
BIND_VMETHOD(MethodInfo(Variant::OBJECT, "get_child_by_name", PropertyInfo(Variant::STRING, "name")));
{
MethodInfo mi = MethodInfo(Variant::NIL, "get_parameter_default_value", PropertyInfo(Variant::STRING_NAME, "name"));
mi.return_val.usage = PROPERTY_USAGE_NIL_IS_VARIANT;
BIND_VMETHOD(mi);
}
BIND_VMETHOD(MethodInfo("process", PropertyInfo(Variant::FLOAT, "time"), PropertyInfo(Variant::BOOL, "seek")));
BIND_VMETHOD(MethodInfo(Variant::STRING, "get_caption"));
BIND_VMETHOD(MethodInfo(Variant::BOOL, "has_filter"));
ADD_SIGNAL(MethodInfo("removed_from_graph"));
ADD_SIGNAL(MethodInfo("tree_changed"));
BIND_ENUM_CONSTANT(FILTER_IGNORE);
BIND_ENUM_CONSTANT(FILTER_PASS);
BIND_ENUM_CONSTANT(FILTER_STOP);
BIND_ENUM_CONSTANT(FILTER_BLEND);
}
AnimationNode::AnimationNode() {
state = nullptr;
parent = nullptr;
filter_enabled = false;
}
////////////////////
void AnimationTree::set_tree_root(const Ref<AnimationNode> &p_root) {
if (root.is_valid()) {
root->disconnect("tree_changed", callable_mp(this, &AnimationTree::_tree_changed));
}
root = p_root;
if (root.is_valid()) {
root->connect("tree_changed", callable_mp(this, &AnimationTree::_tree_changed));
}
properties_dirty = true;
update_configuration_warning();
}
Ref<AnimationNode> AnimationTree::get_tree_root() const {
return root;
}
void AnimationTree::set_active(bool p_active) {
if (active == p_active) {
return;
}
active = p_active;
started = active;
if (process_mode == ANIMATION_PROCESS_IDLE) {
set_process_internal(active);
} else {
set_physics_process_internal(active);
}
if (!active && is_inside_tree()) {
for (Set<TrackCache *>::Element *E = playing_caches.front(); E; E = E->next()) {
if (ObjectDB::get_instance(E->get()->object_id)) {
E->get()->object->call("stop");
}
}
playing_caches.clear();
}
}
bool AnimationTree::is_active() const {
return active;
}
void AnimationTree::set_process_mode(AnimationProcessMode p_mode) {
if (process_mode == p_mode) {
return;
}
bool was_active = is_active();
if (was_active) {
set_active(false);
}
process_mode = p_mode;
if (was_active) {
set_active(true);
}
}
AnimationTree::AnimationProcessMode AnimationTree::get_process_mode() const {
return process_mode;
}
void AnimationTree::_node_removed(Node *p_node) {
cache_valid = false;
}
bool AnimationTree::_update_caches(AnimationPlayer *player) {
setup_pass++;
if (!player->has_node(player->get_root())) {
ERR_PRINT("AnimationTree: AnimationPlayer root is invalid.");
set_active(false);
return false;
}
Node *parent = player->get_node(player->get_root());
List<StringName> sname;
player->get_animation_list(&sname);
for (List<StringName>::Element *E = sname.front(); E; E = E->next()) {
Ref<Animation> anim = player->get_animation(E->get());
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);
TrackCache *track = nullptr;
if (track_cache.has(path)) {
track = track_cache.get(path);
}
//if not valid, delete track
if (track && (track->type != track_type || ObjectDB::get_instance(track->object_id) == nullptr)) {
playing_caches.erase(track);
memdelete(track);
track_cache.erase(path);
track = nullptr;
}
if (!track) {
RES resource;
Vector<StringName> leftover_path;
Node *child = parent->get_node_and_resource(path, resource, leftover_path);
if (!child) {
ERR_PRINT("AnimationTree: '" + String(E->get()) + "', couldn't resolve track: '" + String(path) + "'");
continue;
}
if (!child->is_connected("tree_exited", callable_mp(this, &AnimationTree::_node_removed))) {
child->connect("tree_exited", callable_mp(this, &AnimationTree::_node_removed), varray(child));
}
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->subpath = leftover_path;
track_value->object_id = track_value->object->get_instance_id();
track = track_value;
} break;
case Animation::TYPE_TRANSFORM: {
Node3D *spatial = Object::cast_to<Node3D>(child);
if (!spatial) {
ERR_PRINT("AnimationTree: '" + String(E->get()) + "', transform track does not point to spatial: '" + String(path) + "'");
continue;
}
TrackCacheTransform *track_xform = memnew(TrackCacheTransform);
track_xform->spatial = spatial;
track_xform->skeleton = nullptr;
track_xform->bone_idx = -1;
if (path.get_subname_count() == 1 && Object::cast_to<Skeleton3D>(spatial)) {
Skeleton3D *sk = Object::cast_to<Skeleton3D>(spatial);
int bone_idx = sk->find_bone(path.get_subname(0));
if (bone_idx != -1) {
track_xform->skeleton = sk;
track_xform->bone_idx = bone_idx;
}
}
track_xform->object = spatial;
track_xform->object_id = track_xform->object->get_instance_id();
track = track_xform;
} 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;
} 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 = 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;
}
track->setup_pass = setup_pass;
}
}
List<NodePath> to_delete;
const NodePath *K = nullptr;
while ((K = track_cache.next(K))) {
TrackCache *tc = track_cache[*K];
if (tc->setup_pass != setup_pass) {
to_delete.push_back(*K);
}
}
while (to_delete.front()) {
NodePath np = to_delete.front()->get();
memdelete(track_cache[np]);
track_cache.erase(np);
to_delete.pop_front();
}
state.track_map.clear();
K = nullptr;
int idx = 0;
while ((K = track_cache.next(K))) {
state.track_map[*K] = idx;
idx++;
}
state.track_count = idx;
cache_valid = true;
return true;
}
void AnimationTree::_clear_caches() {
const NodePath *K = nullptr;
while ((K = track_cache.next(K))) {
memdelete(track_cache[*K]);
}
playing_caches.clear();
track_cache.clear();
cache_valid = false;
}
void AnimationTree::_process_graph(float p_delta) {
_update_properties(); //if properties need updating, update them
//check all tracks, see if they need modification
root_motion_transform = Transform();
if (!root.is_valid()) {
ERR_PRINT("AnimationTree: root AnimationNode is not set, disabling playback.");
set_active(false);
cache_valid = false;
return;
}
if (!has_node(animation_player)) {
ERR_PRINT("AnimationTree: no valid AnimationPlayer path set, disabling playback");
set_active(false);
cache_valid = false;
return;
}
AnimationPlayer *player = Object::cast_to<AnimationPlayer>(get_node(animation_player));
ObjectID current_animation_player;
if (player) {
current_animation_player = player->get_instance_id();
}
if (last_animation_player != current_animation_player) {
if (last_animation_player.is_valid()) {
Object *old_player = ObjectDB::get_instance(last_animation_player);
if (old_player) {
old_player->disconnect("caches_cleared", callable_mp(this, &AnimationTree::_clear_caches));
}
}
if (player) {
player->connect("caches_cleared", callable_mp(this, &AnimationTree::_clear_caches));
}
last_animation_player = current_animation_player;
}
if (!player) {
ERR_PRINT("AnimationTree: path points to a node not an AnimationPlayer, disabling playback");
set_active(false);
cache_valid = false;
return;
}
if (!cache_valid) {
if (!_update_caches(player)) {
return;
}
}
{ //setup
process_pass++;
state.valid = true;
state.invalid_reasons = "";
state.animation_states.clear(); //will need to be re-created
state.valid = true;
state.player = player;
state.last_pass = process_pass;
state.tree = this;
// root source blends
root->blends.resize(state.track_count);
float *src_blendsw = root->blends.ptrw();
for (int i = 0; i < state.track_count; i++) {
src_blendsw[i] = 1.0; //by default all go to 1 for the root input
}
}
//process
{
if (started) {
//if started, seek
root->_pre_process(SceneStringNames::get_singleton()->parameters_base_path, nullptr, &state, 0, true, Vector<StringName>());
started = false;
}
root->_pre_process(SceneStringNames::get_singleton()->parameters_base_path, nullptr, &state, p_delta, false, Vector<StringName>());
}
if (!state.valid) {
return; //state is not valid. do nothing.
}
//apply value/transform/bezier blends to track caches and execute method/audio/animation tracks
{
bool can_call = is_inside_tree() && !Engine::get_singleton()->is_editor_hint();
for (List<AnimationNode::AnimationState>::Element *E = state.animation_states.front(); E; E = E->next()) {
const AnimationNode::AnimationState &as = E->get();
Ref<Animation> a = as.animation;
float time = as.time;
float delta = as.delta;
bool seeked = as.seeked;
for (int i = 0; i < a->get_track_count(); i++) {
NodePath path = a->track_get_path(i);
ERR_CONTINUE(!track_cache.has(path));
TrackCache *track = track_cache[path];
if (track->type != a->track_get_type(i)) {
continue; //may happen should not
}
track->root_motion = root_motion_track == path;
ERR_CONTINUE(!state.track_map.has(path));
int blend_idx = state.track_map[path];
ERR_CONTINUE(blend_idx < 0 || blend_idx >= state.track_count);
float blend = (*as.track_blends)[blend_idx];
if (blend < CMP_EPSILON) {
continue; //nothing to blend
}
switch (track->type) {
case Animation::TYPE_TRANSFORM: {
TrackCacheTransform *t = static_cast<TrackCacheTransform *>(track);
if (track->root_motion) {
if (t->process_pass != process_pass) {
t->process_pass = process_pass;
t->loc = Vector3();
t->rot = Quat();
t->rot_blend_accum = 0;
t->scale = Vector3(1, 1, 1);
}
float prev_time = time - delta;
if (prev_time < 0) {
if (!a->has_loop()) {
prev_time = 0;
} else {
prev_time = a->get_length() + prev_time;
}
}
Vector3 loc[2];
Quat rot[2];
Vector3 scale[2];
if (prev_time > time) {
Error err = a->transform_track_interpolate(i, prev_time, &loc[0], &rot[0], &scale[0]);
if (err != OK) {
continue;
}
a->transform_track_interpolate(i, a->get_length(), &loc[1], &rot[1], &scale[1]);
t->loc += (loc[1] - loc[0]) * blend;
t->scale += (scale[1] - scale[0]) * blend;
Quat q = Quat().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
t->rot = (t->rot * q).normalized();
prev_time = 0;
}
Error err = a->transform_track_interpolate(i, prev_time, &loc[0], &rot[0], &scale[0]);
if (err != OK) {
continue;
}
a->transform_track_interpolate(i, time, &loc[1], &rot[1], &scale[1]);
t->loc += (loc[1] - loc[0]) * blend;
t->scale += (scale[1] - scale[0]) * blend;
Quat q = Quat().slerp(rot[0].normalized().inverse() * rot[1].normalized(), blend).normalized();
t->rot = (t->rot * q).normalized();
prev_time = 0;
} else {
Vector3 loc;
Quat rot;
Vector3 scale;
Error err = a->transform_track_interpolate(i, time, &loc, &rot, &scale);
//ERR_CONTINUE(err!=OK); //used for testing, should be removed
if (t->process_pass != process_pass) {
t->process_pass = process_pass;
t->loc = loc;
t->rot = rot;
t->rot_blend_accum = 0;
t->scale = scale;
}
if (err != OK) {
continue;
}
t->loc = t->loc.lerp(loc, blend);
if (t->rot_blend_accum == 0) {
t->rot = rot;
t->rot_blend_accum = blend;
} else {
float rot_total = t->rot_blend_accum + blend;
t->rot = rot.slerp(t->rot, t->rot_blend_accum / rot_total).normalized();
t->rot_blend_accum = rot_total;
}
t->scale = t->scale.lerp(scale, blend);
}
} break;
case Animation::TYPE_VALUE: {
TrackCacheValue *t = static_cast<TrackCacheValue *>(track);
Animation::UpdateMode update_mode = a->value_track_get_update_mode(i);
if (update_mode == Animation::UPDATE_CONTINUOUS || update_mode == Animation::UPDATE_CAPTURE) { //delta == 0 means seek
Variant value = a->value_track_interpolate(i, time);
if (value == Variant()) {
continue;
}
if (t->process_pass != process_pass) {
t->value = value;
t->process_pass = process_pass;
}
Variant::interpolate(t->value, value, blend, t->value);
} else if (delta != 0) {
List<int> indices;
a->value_track_get_key_indices(i, time, delta, &indices);
for (List<int>::Element *F = indices.front(); F; F = F->next()) {
Variant value = a->track_get_key_value(i, F->get());
t->object->set_indexed(t->subpath, value);
}
}
} break;
case Animation::TYPE_METHOD: {
if (delta == 0) {
continue;
}
TrackCacheMethod *t = static_cast<TrackCacheMethod *>(track);
List<int> indices;
a->method_track_get_key_indices(i, time, delta, &indices);
for (List<int>::Element *F = indices.front(); F; F = F->next()) {
StringName method = a->method_track_get_name(i, F->get());
Vector<Variant> params = a->method_track_get_params(i, F->get());
int s = params.size();
ERR_CONTINUE(s > VARIANT_ARG_MAX);
if (can_call) {
t->object->call_deferred(
method,
s >= 1 ? params[0] : Variant(),
s >= 2 ? params[1] : Variant(),
s >= 3 ? params[2] : Variant(),
s >= 4 ? params[3] : Variant(),
s >= 5 ? params[4] : Variant());
}
}
} break;
case Animation::TYPE_BEZIER: {
TrackCacheBezier *t = static_cast<TrackCacheBezier *>(track);