From 0ba2bc42e7ffaf71983dc9a8a1c59853c50a2cc2 Mon Sep 17 00:00:00 2001
From: "Claudius \"keldu\" Holeksa" <mail@keldu.de>
Date: Mon, 14 Aug 2023 03:55:48 +0200
Subject: c++: Going into the area of simple BGK Dynamics

---
 c++/descriptor.h | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'c++/descriptor.h')

diff --git a/c++/descriptor.h b/c++/descriptor.h
index c09b312..4d29831 100644
--- a/c++/descriptor.h
+++ b/c++/descriptor.h
@@ -27,5 +27,29 @@ using CellData = Struct<
 template<typename T, size_t D>
 using Lattice = Array<T, D>;
 }
+
+template<typename T>
+class df_info{};
+
+template<typename T>
+class df_info<Descriptor<T, 2, 5>> {
+	static constexpr std::array<std::array<int32_t, 2>, 5> directions = {
+		{ 0, 0},
+		{-1, 0},
+		{ 0,-1},
+		{ 0, 1},
+		{ 1, 0}
+	};
+
+	static constexpr std::array<std::ratio<int32_t>,5> weights = {
+		{1,3},
+		{1,6},
+		{1,6},
+		{1,6},
+		{1,6}
+	};
+
+	static constexpr std::ratio<int32_t> cs2 = {1,3};
+};
 }
 }
-- 
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