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//-----------------------------------------------------------------------------
// Name: mat3.cpp
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// 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.
//
//-----------------------------------------------------------------------------
#pragma once
#include <Math/vec3.h>
#include <Math/mat4.h>
class mat3
{
public:
mat3(float val = 1.0f);
mat3(float e0, float e1, float e2,
float e3, float e4, float e5,
float e6, float e7, float e8);
mat3(const float * rhs);
mat3(const mat4& m);
~mat3() {} //empty
//cast to pointer to a (float *) for glGetFloatv etc
operator float* () const {return (float*) this;}
operator const float* () const {return (const float*) this;}
inline float& operator()(int i, int j) {return entries[i+j*3];}
inline const float& operator()(int i, int j) const {return entries[i+j*3];}
inline float& operator[](int i) { return entries[i]; }
inline const float& operator[](int i) const { return entries[i]; }
vec3 operator*(const vec3 &rhs) const;
//member variables
float entries[9];
};
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