X-lanni
93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
/*
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* Copyright 2014 Google Inc. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "tango-gl/transform.h"
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#include "tango-gl/util.h"
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#define nullptr 0
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namespace tango_gl {
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Transform::Transform()
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: parent_(nullptr),
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position_(0.0f, 0.0f, 0.0f),
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rotation_(1.0f, 0.0f, 0.0f, 0.0f),
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scale_(1.0f, 1.0f, 1.0f) {
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}
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Transform::~Transform() {
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// Objects are not responsible for deleting their parents.
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}
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void Transform::SetPosition(const glm::vec3& position) {
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position_ = position;
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}
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glm::vec3 Transform::GetPosition() const {
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return position_;
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}
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void Transform::SetRotation(const glm::quat& rotation) {
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rotation_ = rotation;
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}
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glm::quat Transform::GetRotation() const {
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return rotation_;
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}
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void Transform::SetScale(const glm::vec3& scale) {
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scale_ = scale;
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}
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glm::vec3 Transform::GetScale() const {
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return scale_;
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}
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void Transform::Translate(const glm::vec3& translation) {
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position_ += translation;
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}
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void Transform::SetTransformationMatrix(const glm::mat4& transform_mat) {
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util::DecomposeMatrix(transform_mat, position_, rotation_, scale_);
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}
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glm::mat4 Transform::GetTransformationMatrix() const {
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glm::mat4 trans_mat = glm::scale(glm::mat4_cast(rotation_), scale_);
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trans_mat[3][0] = position_.x;
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trans_mat[3][1] = position_.y;
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trans_mat[3][2] = position_.z;
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glm::mat4 parent_mat = glm::mat4(1.0f);
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if (parent_ != NULL) {
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parent_mat = parent_->GetTransformationMatrix();
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trans_mat = parent_mat * trans_mat;
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}
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return trans_mat;
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}
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void Transform::SetParent(Transform* transform) {
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parent_ = transform;
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}
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const Transform* Transform::GetParent() const {
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return parent_;
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}
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Transform* Transform::GetParent() {
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return parent_;
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}
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} // namespace tango_gl
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