Trying to make a cleaner vtk writer

1 files changed, 16 insertions, 1 deletions

diff --git a/c++/collision.hpp b/c++/collision.hpp
index 87187c2..ba35be1 100644
--- a/c++/collision.hpp
+++ b/c++/collision.hpp
@@ -14,15 +14,30 @@ class component<T, Descriptor, cmpt::BGK> {
 public:
 	using Component = cmpt::BGK;
 
+	/**
+	 * Thoughts regarding automating order setup
+	 */
 	using access = cmpt::access_tuple<
 		cmpt::access<"dfs", 1, true, true, true>
 	>;
 
+	/**
+	 * Thoughts regarding automating order setup
+	 */
 	static constexpr saw::string_literal name = "collision";
 	static constexpr saw::string_literal after = "";
 	static constexpr saw::string_literal before = "streaming";
 
-	void apply(saw::data<sch::CellField>& field){
+	/**
+	 * Raw setup
+	 */
+	void apply(saw::data<sch::CellField>& field, saw::data<sch::FixedArray<sch::UInt64,Descriptor::D>> index, uint64_t time_step){
+		bool is_even = ((time_step % 2) == 0);
+		auto& cell = field.at(index);
+
+		auto& dfs_old = is_even ? cell.template get<"dfs_old">() : cell.template get<"dfs">();
+		auto& dfs = (!is_even) ? cell.template get<"dfs_old">() : cell.template get<"dfs">();
+
 
 	}
 };