refactor: have cursor controller inverting input positions

2 files changed, 30 insertions, 4 deletions

diff --git a/src/engine/user/cursor.cpp b/src/engine/user/cursor.cpp
index 97e9104..70828c3 100644
--- a/src/engine/user/cursor.cpp
+++ b/src/engine/user/cursor.cpp
@@ -5,7 +5,10 @@
 #include <cstdlib>
 #include <iostream>
 
-CursorController::CursorController() noexcept : _position({.x = 0, .y = 0}) {}
+CursorController::CursorController() noexcept
+	: _position({.x = 0, .y = 0}), _bounds({0, 0})
+{
+}
 
 void CursorController::move(const Vector2 &direction, const uint32_t &amount) noexcept
 {
@@ -22,11 +25,13 @@ void CursorController::move(const Vector2 &direction, const uint32_t &amount) no
 
 void CursorController::move_to(const Vector2 &position) noexcept
 {
+	const auto inverted_pos = _invert_position_y(position);
+
 	fmt::print(
 		MOVE_CURSOR_TO,
 		fmt::arg("esc", ESC),
-		fmt::arg("row", position.get_y()),
-		fmt::arg("column", position.get_x()));
+		fmt::arg("row", inverted_pos.get_y()),
+		fmt::arg("column", inverted_pos.get_x()));
 	std::cout.flush();
 
 	_position = position;
@@ -47,7 +52,7 @@ void CursorController::ensure_position() noexcept
 	// NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg)
 	scanf("\033[%u;%uR", &vector2_options.y, &vector2_options.x);
 
-	_position = Vector2(vector2_options);
+	_position = _invert_position_y(Vector2(vector2_options));
 }
 
 void CursorController::hide() noexcept
@@ -61,3 +66,17 @@ void CursorController::show() noexcept
 	fmt::print(CURSOR_VISIBLE, fmt::arg("esc", ESC));
 	std::cout.flush();
 }
+
+void CursorController::set_bounds(const Bounds &bounds) noexcept
+{
+	_bounds = bounds;
+}
+
+auto CursorController::_invert_position_y(const Vector2 &position) const noexcept
+	-> Vector2
+{
+	const auto bounds_height = static_cast<Vector2::Value>(_bounds.get_height());
+
+	return Vector2({.x = position.get_x(), .y = bounds_height - position.get_y()});
+}
+
diff --git a/src/engine/user/cursor.hpp b/src/engine/user/cursor.hpp
index de8c3ae..199c86b 100644
--- a/src/engine/user/cursor.hpp
+++ b/src/engine/user/cursor.hpp
@@ -2,6 +2,7 @@
 
 #include "interfaces/cursor.hpp"
 
+#include "engine/data/bounds.hpp"
 #include "engine/data/vector2.hpp"
 
 #include <fmt/core.h>
@@ -48,6 +49,12 @@ public:
 
 	void show() noexcept override;
 
+	void set_bounds(const Bounds &bounds) noexcept override;
+
 private:
 	Vector2 _position;
+	Bounds _bounds;
+
+	[[nodiscard]] auto _invert_position_y(const Vector2 &position) const noexcept
+		-> Vector2;
 };