mirror of https://github.com/axmolengine/axmol.git
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/**
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Copyright 2013 BlackBerry Inc.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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Original file from GamePlay3D: http://gameplay3d.org
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This file was modified to fit the cocos2d-x project
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*/
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#include "math/Quaternion.h"
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NS_AX_MATH_BEGIN
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inline Quaternion Quaternion::operator*(const Quaternion& q) const
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{
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Quaternion result(*this);
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result.multiply(q);
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return result;
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}
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inline Quaternion& Quaternion::operator*=(const Quaternion& q)
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{
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multiply(q);
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return *this;
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}
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inline Vec3 Quaternion::operator*(const Vec3& v) const
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{
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Vec3 uv, uuv;
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Vec3 qvec(x, y, z);
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Vec3::cross(qvec, v, &uv);
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Vec3::cross(qvec, uv, &uuv);
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uv *= (2.0f * w);
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uuv *= 2.0f;
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return v + uv + uuv;
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}
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NS_AX_MATH_END
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