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65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef MATH_SQUAREMATRIX_H
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#define MATH_SQUAREMATRIX_H
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#include "math/matrix.h"
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#include "math/vector.h"
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namespace Math {
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/**
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* \class MatrixType<dim, dim>
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* This specialization of MatrixType defines some new methods for square
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* matrices.
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*/
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template<int dim>
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class MatrixType<dim, dim> : public MatrixBase<dim, dim> {
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public:
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inline void setToIdentity() { *this = 1.f; }
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inline void transformVector(Vector(dim) *vec) const {
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*vec = this->getThis() * *vec;
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}
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Matrix<dim, dim> &operator=(float i);
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protected:
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MatrixType() : MatrixBase<dim, dim>() { setToIdentity(); }
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MatrixType(float *data) : MatrixBase<dim, dim>(data) { }
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MatrixType(const MatrixBase<dim, dim> &m) : MatrixBase<dim, dim>(m) { }
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};
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template<int dim>
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Matrix<dim, dim> &MatrixType<dim, dim>::operator=(float i) {
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for (int row = 0; row < dim; ++row) {
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for (int col = 0; col < dim; ++col) {
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this->setValue(row, col, (row == col ? i : 0.f));
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}
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}
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return this->getThis();
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}
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}
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#endif
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