mirror of
https://github.com/smallmain/cocos-enhance-kit.git
synced 2024-12-26 11:48:29 +00:00
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/**
|
|
Copyright 2013 BlackBerry Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
|
|
Original file from GamePlay3D: http://gameplay3d.org
|
|
|
|
This file was modified to fit the cocos2d-x project
|
|
*/
|
|
|
|
#include "math/Quaternion.h"
|
|
|
|
NS_CC_MATH_BEGIN
|
|
|
|
inline const Quaternion Quaternion::operator*(const Quaternion& q) const
|
|
{
|
|
Quaternion result(*this);
|
|
result.multiply(q);
|
|
return result;
|
|
}
|
|
|
|
inline Quaternion& Quaternion::operator*=(const Quaternion& q)
|
|
{
|
|
multiply(q);
|
|
return *this;
|
|
}
|
|
|
|
inline Vec3 Quaternion::operator*(const Vec3& v) const
|
|
{
|
|
Vec3 uv, uuv;
|
|
Vec3 qvec(x, y, z);
|
|
Vec3::cross(qvec, v, &uv);
|
|
Vec3::cross(qvec, uv, &uuv);
|
|
|
|
uv *= (2.0f * w);
|
|
uuv *= 2.0f;
|
|
|
|
return v + uv + uuv;
|
|
}
|
|
|
|
NS_CC_MATH_END
|