From 354418188ea55a2ff83526192cc471dcbd905662 Mon Sep 17 00:00:00 2001
From: Charles Dang <exodia339@gmail.com>
Date: Wed, 4 Sep 2024 01:30:08 -0400
Subject: [PATCH] Add rect::shifted_by

Companion of rect::shift for const objects
---
 src/sdl/rect.cpp | 13 +++++++++++++
 src/sdl/rect.hpp |  4 ++++
 2 files changed, 17 insertions(+)

diff --git a/src/sdl/rect.cpp b/src/sdl/rect.cpp
index 4417740460e..f74eaaebced 100644
--- a/src/sdl/rect.cpp
+++ b/src/sdl/rect.cpp
@@ -107,6 +107,19 @@ void rect::shift(const point& other)
 	this->y += other.y;
 }
 
+rect rect::shifted_by(int x, int y) const
+{
+	rect res = *this;
+	res.x += x;
+	res.y += y;
+	return res;
+}
+
+rect rect::shifted_by(const point& other) const
+{
+	return shifted_by(other.x, other.y);
+}
+
 std::ostream& operator<<(std::ostream& s, const rect& r)
 {
 	s << '[' << r.x << ',' << r.y << '|' << r.w << ',' << r.h << ']';
diff --git a/src/sdl/rect.hpp b/src/sdl/rect.hpp
index 6f29a393fe2..27b2603638c 100644
--- a/src/sdl/rect.hpp
+++ b/src/sdl/rect.hpp
@@ -147,6 +147,10 @@ public:
 	 * The point's X and Y coordinates will be added to the rectangle's.
 	 */
 	void shift(const point& p);
+
+	/** Returns a new rectangle shifted by the given relative position. */
+	rect shifted_by(int x, int y) const;
+	rect shifted_by(const point& p) const;
 };
 
 std::ostream& operator<<(std::ostream&, const rect&);