diff options
Diffstat (limited to 'src/engine/graphics/matrix_impl.hpp')
-rw-r--r-- | src/engine/graphics/matrix_impl.hpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/engine/graphics/matrix_impl.hpp b/src/engine/graphics/matrix_impl.hpp new file mode 100644 index 0000000..527c61f --- /dev/null +++ b/src/engine/graphics/matrix_impl.hpp @@ -0,0 +1,156 @@ +#pragma once + +#include "matrix.hpp" + +template <typename Element> +Matrix<Element>::Matrix(const Bounds &bounds) noexcept + : _matrix(new Element *[bounds.get_height()]), + _row_cnt(bounds.get_height()), + _column_cnt(bounds.get_width()) +{ + for (gsl::owner<Element **> row = _matrix; row != _matrix + _row_cnt; row++) + { + *row = static_cast<gsl::owner<Element *>>(new Element[bounds.get_width()]); + } +}; + +template <typename Element> +Matrix<Element>::Matrix(const Matrix &matrix) noexcept + : _matrix(new Element *[matrix._row_cnt]), + _row_cnt(matrix._row_cnt), + _column_cnt(matrix._column_cnt) +{ + _copy_matrix_from(matrix); +} + +template <typename Element> +Matrix<Element>::Matrix(Matrix &&matrix) noexcept + : _matrix(matrix._matrix), _row_cnt(matrix._row_cnt), _column_cnt(matrix._column_cnt) +{ + matrix._matrix = nullptr; +} + +template <typename Element> +Matrix<Element>::~Matrix() noexcept +{ + _delete_matrix(); +} + +template <typename Element> +void Matrix<Element>::fill(Element element) noexcept +{ + for (auto row : *this) + { + for (auto &col : row) + { + col = element; + } + } +} + +template <typename Element> +auto Matrix<Element>::get(const Vector2 &pos) const noexcept -> Element +{ + + auto x = static_cast<std::size_t>(pos.get_x()); + auto y = static_cast<std::size_t>(pos.get_y()); + + // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic) + return _matrix[y][x]; +} + +template <typename Element> +void Matrix<Element>::set(const Vector2 &pos, Element element) noexcept +{ + auto x = static_cast<std::size_t>(pos.get_x()); + auto y = static_cast<std::size_t>(pos.get_y()); + + // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic) + _matrix[y][x] = element; +} + +template <typename Element> +auto Matrix<Element>::get_row_cnt() const noexcept -> uint32_t +{ + return _row_cnt; +} + +template <typename Element> +auto Matrix<Element>::get_column_cnt() const noexcept -> uint32_t +{ + return _column_cnt; +} + +template <typename Element> +auto Matrix<Element>::begin() const noexcept -> MatrixIterator<Element> +{ + return MatrixIterator(_matrix, _column_cnt); +} + +template <typename Element> +auto Matrix<Element>::end() const noexcept -> MatrixIterator<Element> +{ + return MatrixIterator(_matrix + _row_cnt, _column_cnt); +} + +template <typename Element> +auto Matrix<Element>::operator=(const Matrix &rhs) noexcept -> Matrix<Element> & +{ + if (&rhs != this) + { + _delete_matrix(); + + // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) + _matrix = nullptr; + + _matrix = new Element *[rhs._row_cnt]; + _copy_matrix_from(rhs); + } + + return *this; +} + +template <typename Element> +auto Matrix<Element>::operator=(Matrix &&rhs) noexcept -> Matrix<Element> & +{ + if (&rhs != this) + { + _delete_matrix(); + + // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) + _matrix = rhs._matrix; + + rhs._matrix = nullptr; + } + + return *this; +} + +template <typename Element> +void Matrix<Element>::_delete_matrix() noexcept +{ + for (gsl::owner<Element **> row = _matrix; row != _matrix + _row_cnt; row++) + { + delete[](*row); + } + + delete[] _matrix; +} + +template <typename Element> +void Matrix<Element>::_copy_matrix_from(const Matrix &source) noexcept +{ + // NOLINTNEXTLINE(cppcoreguidelines-owning-memory) + gsl::owner<Element **> source_row = source._matrix; + + for (gsl::owner<Element **> row = _matrix; row != _matrix + _row_cnt; + row++, source_row++) + { + *row = static_cast<gsl::owner<Element *>>(new Element[_column_cnt]); + + // NOLINTNEXTLINE(cppcoreguidelines-pro-bounds-pointer-arithmetic) + auto *end = *source_row + _column_cnt; + + std::copy(*source_row, end, *row); + } +} |