AxisAlignedBoundingBox construct from range instead of span

1 files changed, 14 insertions, 2 deletions

diff --git a/gfx/aabb.h b/gfx/aabb.h
index db3a215..229d516 100644
--- a/gfx/aabb.h
+++ b/gfx/aabb.h
@@ -1,7 +1,8 @@
 #pragma once
 
 #include "config/types.h"
-#include <span>
+#include <algorithm>
+#include <tuple>
 
 class AxisAlignedBoundingBox {
 public:
@@ -13,7 +14,18 @@ public:
 
 	AxisAlignedBoundingBox operator-(const GlobalPosition3D & viewPoint) const;
 
-	[[nodiscard]] static AxisAlignedBoundingBox fromPoints(std::span<const GlobalPosition3D> points);
+	[[nodiscard]] static AxisAlignedBoundingBox
+	fromPoints(auto && points)
+	{
+		using Limits = std::numeric_limits<GlobalDistance>;
+		static constexpr const auto INITIAL
+				= std::make_pair(GlobalPosition3D {Limits::max()}, GlobalPosition3D {Limits::min()});
+		return std::make_from_tuple<AxisAlignedBoundingBox>(
+				std::ranges::fold_left(points, INITIAL, [](const auto & prev, const auto & point) {
+					auto & [min, max] = prev;
+					return std::make_pair(glm::min(min, point), glm::max(max, point));
+				}));
+	}
 
 	GlobalPosition3D min, max;
 };