3 files changed, 104 insertions, 0 deletions
diff --git a/src/interfaces/bounds.hpp b/src/interfaces/bounds.hpp
new file mode 100644
index 0000000..9cec97e
--- /dev/null
+++ b/src/interfaces/bounds.hpp
@@ -0,0 +1,41 @@
+#pragma once
+
+#include "interfaces/vector2.hpp"
+
+#include <functional>
+#include <memory>
+
+enum CoordsValidation
+{
+	VALID,
+	X_HIGH,
+	Y_HIGH
+};
+
+class IBounds
+{
+public:
+	[[nodiscard]] virtual unsigned int width() const = 0;
+
+	virtual void width(unsigned int width) = 0;
+
+	[[nodiscard]] virtual unsigned int height() const = 0;
+
+	virtual void height(unsigned int height) = 0;
+
+	[[nodiscard]] virtual CoordsValidation
+	validate_coords(const IVector2 &coords) const = 0;
+
+	virtual const IBounds &operator*=(const IBounds &bounds) = 0;
+	virtual const IBounds &operator+=(const IBounds &bounds) = 0;
+	virtual const IBounds &operator-=(const IBounds &bounds) = 0;
+};
+
+struct IBoundsOptions
+{
+	unsigned int width;
+	unsigned int height;
+};
+
+using IBoundsFactory =
+	std::function<std::shared_ptr<IBounds>(const IBoundsOptions &options)>;
diff --git a/src/interfaces/matrix.hpp b/src/interfaces/matrix.hpp
new file mode 100644
index 0000000..5dc5f2e
--- /dev/null
+++ b/src/interfaces/matrix.hpp
@@ -0,0 +1,48 @@
+#pragma once
+
+#include "interfaces/bounds.hpp"
+#include "interfaces/vector2.hpp"
+
+#include <functional>
+#include <memory>
+
+template <typename Element>
+class IMatrix
+{
+public:
+	/**
+	 * Fills the matrix with a element.
+	 *
+	 * @param element A element
+	 */
+	virtual void fill(Element element) = 0;
+
+	/**
+	 * Returns a element of the matrix.
+	 *
+	 * @param pos The position of a element
+	 */
+	[[nodiscard]] virtual Element get(const IVector2 &pos) const = 0;
+
+	/**
+	 * Sets a element of the matrix.
+	 *
+	 * @param pos The position of a element
+	 * @param element A new element
+	 */
+	virtual void set(const IVector2 &pos, Element element) = 0;
+
+	/**
+	 * Returns the number of rows the matrix has.
+	 */
+	[[nodiscard]] virtual unsigned int rows() const = 0;
+
+	/**
+	 * Returns the number of columns the matrix has.
+	 */
+	[[nodiscard]] virtual unsigned int columns() const = 0;
+};
+
+template <typename Element>
+using IMatrixFactory =
+	std::function<std::shared_ptr<IMatrix<Element>>(const IBounds &bounds)>;
diff --git a/src/interfaces/scene.hpp b/src/interfaces/scene.hpp
new file mode 100644
index 0000000..8b34dae
--- /dev/null
+++ b/src/interfaces/scene.hpp
@@ -0,0 +1,15 @@
+#pragma once
+
+#include "interfaces/matrix.hpp"
+
+#include <functional>
+#include <memory>
+#include <string_view>
+
+class IScene
+{
+public:
+	virtual void enter() = 0;
+
+	virtual void leave() = 0;
+};