From 55edb9f634573906ee0f6abc70f9630c5c1009a4 Mon Sep 17 00:00:00 2001
From: Myles Busig <mdbusig@gmail.com>
Date: Fri, 2 Aug 2024 23:27:13 -0600
Subject: [PATCH] Add fixed point assignment operators

---
 include/mtl/fixed.hpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/mtl/fixed.hpp b/include/mtl/fixed.hpp
index 83b08ee..02b84e3 100644
--- a/include/mtl/fixed.hpp
+++ b/include/mtl/fixed.hpp
@@ -105,12 +105,20 @@ public:
 	constexpr fixed operator+(fixed rhs) const {
 		return from_raw(x + rhs.x);
 	}
+	constexpr fixed& operator+=(fixed rhs) {
+		x += rhs.x;
+		return *this;
+	}
 	/**
 	 * \brief Fixed point subtraction
 	 */
 	constexpr fixed operator-(fixed rhs) const {
 		return from_raw(x - rhs.x);
 	}
+	constexpr fixed& operator-=(fixed rhs) {
+		x -= rhs.x;
+		return *this;
+	}
 	constexpr fixed operator-() const {
 		return from_raw(-x);
 	}
@@ -135,6 +143,10 @@ public:
 		
 		return from_raw(raw_result);
 	}
+	fixed& operator*=(fixed rhs) {
+		*this = *this * rhs;
+		return *this;
+	}
 
 	/**
 	 * \brief Fixed point division
@@ -152,6 +164,10 @@ public:
 	 * Placed in IWRAM
 	 */
 	fixed operator/(fixed rhs) const;
+	fixed& operator/=(fixed rhs) {
+		*this = *this / rhs;
+		return *this;
+	}
 };
 
 } // namespace mtl