From 048f18e2a0b32044525cef41fa053984433c74b9 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Fri, 29 Dec 2023 14:12:40 +0000
Subject: Remove misleading power operator^ on vec2/3

---
 lib/maths.cpp |  2 +-
 lib/maths.h   | 24 +++++++-----------------
 2 files changed, 8 insertions(+), 18 deletions(-)

(limited to 'lib')

diff --git a/lib/maths.cpp b/lib/maths.cpp
index 0c25820..17082d4 100644
--- a/lib/maths.cpp
+++ b/lib/maths.cpp
@@ -9,7 +9,7 @@ glm::mat4
 flat_orientation(const Direction3D & diff)
 {
 	static const auto oneeighty {glm::rotate(pi, up)};
-	const auto flatdiff {glm::normalize(diff.xy() ^ 0.F)};
+	const auto flatdiff {glm::normalize(diff.xy() || 0.F)};
 	auto e {glm::orientation(flatdiff, north)};
 	// Handle if diff is exactly opposite to north
 	return (std::isnan(e[0][0])) ? oneeighty : e;
diff --git a/lib/maths.h b/lib/maths.h
index dd83c4b..f7ff148 100644
--- a/lib/maths.h
+++ b/lib/maths.h
@@ -99,18 +99,6 @@ perspective_divide(glm::vec<4, T, Q> v)
 	return v / v.w;
 }
 
-constexpr inline Position3D
-operator^(const Position2D & v, float z)
-{
-	return {v.x, v.y, z};
-}
-
-constexpr inline glm::vec4
-operator^(const Position3D & v, float w)
-{
-	return {v.x, v.y, v.z, w};
-}
-
 template<glm::length_t L1, glm::length_t L2, typename T, glm::qualifier Q>
 inline constexpr glm::vec<L1 + L2, T, Q>
 operator||(const glm::vec<L1, T, Q> v1, const glm::vec<L2, T, Q> v2)
@@ -125,15 +113,17 @@ operator||(const glm::vec<L, T, Q> v1, const T v2)
 	return {v1, v2};
 }
 
-inline Position3D
-operator%(const Position3D & p, const glm::mat4 & mutation)
+template<glm::length_t L, typename T, glm::qualifier Q>
+inline constexpr glm::vec<L, T, Q>
+operator%(const glm::vec<L, T, Q> & p, const glm::mat<L + 1, L + 1, T, Q> & mutation)
 {
-	const auto p2 = mutation * (p ^ 1);
+	const auto p2 = mutation * (p || T(1));
 	return p2 / p2.w;
 }
 
-inline Position3D
-operator%=(Position3D & p, const glm::mat4 & mutation)
+template<glm::length_t L, typename T, glm::qualifier Q>
+inline constexpr glm::vec<L, T, Q>
+operator%=(glm::vec<L, T, Q> & p, const glm::mat<L + 1, L + 1, T, Q> & mutation)
 {
 	return p = p % mutation;
 }
-- 
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