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110 lines
3.6 KiB
110 lines
3.6 KiB
/****************************************************************************
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Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "core/animation/SkeletalAnimationUtils.h"
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#include "core/scene-graph/Node.h"
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namespace cc {
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namespace {
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ccstd::vector<IJointTransform *> stack;
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ccstd::unordered_map<ccstd::string, IJointTransform *> pool;
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} // namespace
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Mat4 getWorldMatrix(IJointTransform *transform, int32_t stamp) {
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uint32_t i = 0;
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Mat4 *res = nullptr;
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while (transform != nullptr) {
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if ((transform->stamp == stamp || transform->stamp + 1 == stamp) && !transform->node->getChangedFlags()) {
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res = &transform->world;
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transform->stamp = stamp;
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break;
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}
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transform->stamp = stamp;
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stack.resize(i + 1);
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stack[i++] = transform;
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transform = transform->parent;
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}
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while (i > 0) {
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transform = stack[--i];
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stack[i] = nullptr;
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const auto *node = transform->node;
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CC_ASSERT_NOT_NULL(node);
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Mat4::fromRTS(node->getRotation(), node->getPosition(), node->getScale(), &transform->local);
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if (res != nullptr) {
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Mat4::multiply(*res, transform->local, &transform->world);
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} else {
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transform->world = transform->local;
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}
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res = &transform->world;
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}
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return res != nullptr ? *res : Mat4::IDENTITY;
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}
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IJointTransform *getTransform(Node *node, Node *root) {
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IJointTransform *joint = nullptr;
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uint32_t i = 0;
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while (node != root) {
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const ccstd::string &id = node->getUuid();
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auto iter = pool.find(id);
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if (iter != pool.end()) {
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joint = iter->second;
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break;
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}
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// TODO(): object reuse
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joint = ccnew IJointTransform;
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joint->node = node;
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pool[id] = joint;
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stack.resize(i + 1);
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stack[i++] = joint;
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node = node->getParent();
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joint = nullptr;
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}
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IJointTransform *child;
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while (i > 0) {
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child = stack[--i];
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stack[i] = nullptr;
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child->parent = joint;
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joint = child;
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}
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return joint;
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}
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void deleteTransform(Node *node) {
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IJointTransform *transform = nullptr;
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auto iter = pool.find(node->getUuid());
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if (iter != pool.end()) {
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transform = iter->second;
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}
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while (transform != nullptr) {
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iter = pool.find(transform->node->getUuid());
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if (iter != pool.end()) {
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pool.erase(iter);
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}
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transform = transform->parent;
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}
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}
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} // namespace cc
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