From 5c1c672e018e41e5c87a0263a851684a52d9c1fb Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sun, 27 Mar 2022 19:21:22 +0200
Subject: refactor: replace string matrix with template matrix

---
 src/engine/graphics/matrix.tpp | 156 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 156 insertions(+)
 create mode 100644 src/engine/graphics/matrix.tpp

(limited to 'src/engine/graphics/matrix.tpp')

diff --git a/src/engine/graphics/matrix.tpp b/src/engine/graphics/matrix.tpp
new file mode 100644
index 0000000..e0e65bb
--- /dev/null
+++ b/src/engine/graphics/matrix.tpp
@@ -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>
+Element Matrix<Element>::get(const Vector2 &pos) const 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)
+	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>
+uint32_t Matrix<Element>::get_row_cnt() const noexcept
+{
+	return _row_cnt;
+}
+
+template <typename Element>
+uint32_t Matrix<Element>::get_column_cnt() const noexcept
+{
+	return _column_cnt;
+}
+
+template <typename Element>
+MatrixIterator<Element> Matrix<Element>::begin() const noexcept
+{
+	return MatrixIterator(_matrix, _column_cnt);
+}
+
+template <typename Element>
+MatrixIterator<Element> Matrix<Element>::end() const noexcept
+{
+	return MatrixIterator(_matrix + _row_cnt, _column_cnt);
+}
+
+template <typename Element>
+Matrix<Element> &Matrix<Element>::operator=(const Matrix &rhs) noexcept
+{
+	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>
+Matrix<Element> &Matrix<Element>::operator=(Matrix &&rhs) noexcept
+{
+	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);
+	}
+}
-- 
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