From af781837df4a4fb1df63103cdeb6a3dfbab7b9d4 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sat, 4 Jun 2022 13:09:47 +0200
Subject: Renamed to VectorMath for now

I still need to think about its place and how/if to address duplication
from raymath.h
---
 VectorMath.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 VectorMath.h

(limited to 'VectorMath.h')

diff --git a/VectorMath.h b/VectorMath.h
new file mode 100644
index 0000000..72eab4d
--- /dev/null
+++ b/VectorMath.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <cmath>
+#include <type_traits>
+
+
+template <typename T> static auto test_z(int) -> decltype(decltype(T::z){}, std::true_type{});
+template <typename> static auto test_z(...) -> std::false_type;
+template <typename T> struct has_z : decltype(test_z<T>(0)) {};
+
+
+template <typename V, typename T=decltype(V::x), typename std::enable_if<has_z<V>::value, bool>::type=true>
+T
+dist(const V& lhs, const V& rhs)
+{
+    return std::sqrt(
+        std::pow(lhs.x - rhs.x, 2) +
+        std::pow(lhs.y - rhs.y, 2) +
+        std::pow(lhs.z - rhs.z, 2));
+}
+
+
+template <typename V, typename T=decltype(V::x), typename std::enable_if<!has_z<V>::value, bool>::type=true>
+T
+dist(const V& lhs, const V& rhs)
+{
+    return std::sqrt(
+        std::pow(lhs.x - rhs.x, 2) +
+        std::pow(lhs.y - rhs.y, 2));
+}
-- 
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