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godot/scene/animation/animation_cache.cpp

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/*************************************************************************/
/* animation_cache.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_cache.h"
void AnimationCache::_node_exit_tree(Node *p_node) {
//it is one shot, so it disconnects upon arrival
ERR_FAIL_COND(!connected_nodes.has(p_node));
connected_nodes.erase(p_node);
for (int i = 0; i < path_cache.size(); i++) {
if (path_cache[i].node != p_node)
continue;
path_cache.write[i].valid = false; //invalidate path cache
}
}
void AnimationCache::_animation_changed() {
_clear_cache();
}
void AnimationCache::_clear_cache() {
while (connected_nodes.size()) {
connected_nodes.front()->get()->disconnect_compat("tree_exiting", this, "_node_exit_tree");
connected_nodes.erase(connected_nodes.front());
}
path_cache.clear();
cache_valid = false;
cache_dirty = true;
}
void AnimationCache::_update_cache() {
cache_valid = false;
ERR_FAIL_COND(!root);
ERR_FAIL_COND(!root->is_inside_tree());
ERR_FAIL_COND(animation.is_null());
for (int i = 0; i < animation->get_track_count(); i++) {
NodePath np = animation->track_get_path(i);
Node *node = root->get_node(np);
if (!node) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(!node, "Invalid track path in animation '" + np + "'.");
}
Path path;
Ref<Resource> res;
if (animation->track_get_type(i) == Animation::TYPE_TRANSFORM) {
if (np.get_subname_count() > 1) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(animation->track_get_type(i) == Animation::TYPE_TRANSFORM, "Transform tracks can't have a subpath '" + np + "'.");
}
Spatial *sp = Object::cast_to<Spatial>(node);
if (!sp) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(!sp, "Transform track not of type Spatial '" + np + "'.");
}
if (np.get_subname_count() == 1) {
StringName property = np.get_subname(0);
String ps = property;
Skeleton *sk = Object::cast_to<Skeleton>(node);
if (!sk) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(!sk, "Property defined in Transform track, but not a Skeleton! '" + np + "'.");
}
int idx = sk->find_bone(ps);
if (idx == -1) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(idx == -1, "Property defined in Transform track, but not a Skeleton Bone! '" + np + "'.");
}
path.bone_idx = idx;
path.skeleton = sk;
}
path.spatial = sp;
} else {
if (np.get_subname_count() > 0) {
RES res2;
Vector<StringName> leftover_subpath;
// We don't want to cache the last resource unless it is a method call
bool is_method = animation->track_get_type(i) == Animation::TYPE_METHOD;
root->get_node_and_resource(np, res2, leftover_subpath, is_method);
if (res2.is_valid()) {
path.resource = res2;
} else {
path.node = node;
}
path.object = res2.is_valid() ? res2.ptr() : (Object *)node;
path.subpath = leftover_subpath;
} else {
path.node = node;
path.object = node;
path.subpath = np.get_subnames();
}
}
if (animation->track_get_type(i) == Animation::TYPE_VALUE) {
if (np.get_subname_count() == 0) {
path_cache.push_back(Path());
ERR_CONTINUE_MSG(np.get_subname_count() == 0, "Value Track lacks property: " + np + ".");
}
} else if (animation->track_get_type(i) == Animation::TYPE_METHOD) {
if (path.subpath.size() != 0) { // Trying to call a method of a non-resource
path_cache.push_back(Path());
ERR_CONTINUE_MSG(path.subpath.size() != 0, "Method Track has property: " + np + ".");
}
}
path.valid = true;
path_cache.push_back(path);
if (!connected_nodes.has(path.node)) {
connected_nodes.insert(path.node);
path.node->connect_compat("tree_exiting", this, "_node_exit_tree", Node::make_binds(path.node), CONNECT_ONESHOT);
}
}
cache_dirty = false;
cache_valid = true;
}
void AnimationCache::set_track_transform(int p_idx, const Transform &p_transform) {
if (cache_dirty)
_update_cache();
ERR_FAIL_COND(!cache_valid);
ERR_FAIL_INDEX(p_idx, path_cache.size());
Path &p = path_cache.write[p_idx];
if (!p.valid)
return;
ERR_FAIL_COND(!p.node);
ERR_FAIL_COND(!p.spatial);
if (p.skeleton) {
p.skeleton->set_bone_pose(p.bone_idx, p_transform);
} else {
p.spatial->set_transform(p_transform);
}
}
void AnimationCache::set_track_value(int p_idx, const Variant &p_value) {
if (cache_dirty)
_update_cache();
ERR_FAIL_COND(!cache_valid);
ERR_FAIL_INDEX(p_idx, path_cache.size());
Path &p = path_cache.write[p_idx];
if (!p.valid)
return;
ERR_FAIL_COND(!p.object);
p.object->set_indexed(p.subpath, p_value);
}
void AnimationCache::call_track(int p_idx, const StringName &p_method, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
if (cache_dirty)
_update_cache();
ERR_FAIL_COND(!cache_valid);
ERR_FAIL_INDEX(p_idx, path_cache.size());
Path &p = path_cache.write[p_idx];
if (!p.valid)
return;
ERR_FAIL_COND(!p.object);
p.object->call(p_method, p_args, p_argcount, r_error);
}
void AnimationCache::set_all(float p_time, float p_delta) {
if (cache_dirty)
_update_cache();
ERR_FAIL_COND(!cache_valid);
int tc = animation->get_track_count();
for (int i = 0; i < tc; i++) {
switch (animation->track_get_type(i)) {
case Animation::TYPE_TRANSFORM: {
Vector3 loc, scale;
Quat rot;
animation->transform_track_interpolate(i, p_time, &loc, &rot, &scale);
Transform tr(Basis(rot), loc);
tr.basis.scale(scale);
set_track_transform(i, tr);
} break;
case Animation::TYPE_VALUE: {
if (animation->value_track_get_update_mode(i) == Animation::UPDATE_CONTINUOUS || (animation->value_track_get_update_mode(i) == Animation::UPDATE_DISCRETE && p_delta == 0)) {
Variant v = animation->value_track_interpolate(i, p_time);
set_track_value(i, v);
} else {
List<int> indices;
animation->value_track_get_key_indices(i, p_time, p_delta, &indices);
for (List<int>::Element *E = indices.front(); E; E = E->next()) {
Variant v = animation->track_get_key_value(i, E->get());
set_track_value(i, v);
}
}
} break;
case Animation::TYPE_METHOD: {
List<int> indices;
animation->method_track_get_key_indices(i, p_time, p_delta, &indices);
for (List<int>::Element *E = indices.front(); E; E = E->next()) {
Vector<Variant> args = animation->method_track_get_params(i, E->get());
StringName name = animation->method_track_get_name(i, E->get());
Callable::CallError err;
if (!args.size()) {
call_track(i, name, NULL, 0, err);
} else {
Vector<const Variant *> argptrs;
argptrs.resize(args.size());
for (int j = 0; j < args.size(); j++) {
argptrs.write[j] = &args.write[j];
}
call_track(i, name, (const Variant **)&argptrs[0], args.size(), err);
}
}
} break;
default: {
}
}
}
}
void AnimationCache::set_animation(const Ref<Animation> &p_animation) {
_clear_cache();
if (animation.is_valid())
animation->disconnect_compat("changed", this, "_animation_changed");
animation = p_animation;
if (animation.is_valid())
animation->connect_compat("changed", this, "_animation_changed");
}
void AnimationCache::_bind_methods() {
ClassDB::bind_method(D_METHOD("_node_exit_tree"), &AnimationCache::_node_exit_tree);
ClassDB::bind_method(D_METHOD("_animation_changed"), &AnimationCache::_animation_changed);
}
void AnimationCache::set_root(Node *p_root) {
_clear_cache();
root = p_root;
}
AnimationCache::AnimationCache() {
root = NULL;
cache_dirty = true;
cache_valid = false;
}
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