From e9dbc71f87ab342487d8145dd8122773cdc1f77f Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Mon, 18 Jan 2021 20:01:46 +0300
Subject: [PATCH] Remove Eigen dependence

---
 examples/animation_2d.cpp | 19 ++++++++++---------
 examples/physics_2d.cpp   |  3 ---
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/examples/animation_2d.cpp b/examples/animation_2d.cpp
index 7a0f4dda..36ec2499 100644
--- a/examples/animation_2d.cpp
+++ b/examples/animation_2d.cpp
@@ -22,8 +22,8 @@
 #include <psemek/util/to_string.hpp>
 #include <psemek/util/pretty_print.hpp>
 
-#include <eigen3/Eigen/Core>
-#include <eigen3/Eigen/Cholesky>
+//#include <eigen3/Eigen/Core>
+//#include <eigen3/Eigen/Cholesky>
 
 #include <fstream>
 #include <iomanip>
@@ -443,8 +443,8 @@ struct controller
 //	geom::matrix<float, layer3, layer2> m3;
 //	geom::vector<float, layer3> t3;
 
-	Eigen::VectorXf to_eigen() const;
-	void from_eigen(Eigen::VectorXf const & v);
+	//Eigen::VectorXf to_eigen() const;
+	//void from_eigen(Eigen::VectorXf const & v);
 
 	int generation = 0;
 
@@ -507,7 +507,7 @@ void controller::randomize(RNG && rng, float amplitude)
 //	visit_v(t3);
 }
 
-
+/*
 Eigen::VectorXf controller::to_eigen() const
 {
 	Eigen::VectorXf vec;
@@ -525,6 +525,7 @@ void controller::from_eigen(Eigen::VectorXf const & v)
 	std::copy(v.data(), v.data() + inputs * outputs, m1.coords);
 	std::copy(v.data() + inputs * outputs, v.data() + (inputs + 1) * outputs, t1.coords);
 }
+*/
 
 template <typename RNG>
 void controller::mutate(RNG && rng, float amplitude)
@@ -699,8 +700,8 @@ struct animation_2d_app
 	float const initial_variance = 10.f;
 	static constexpr auto mutation_amplitude = [](float t){ return std::pow(10.f, 1.f + geom::lerp(0.f, -2.f, t)); };
 
-	Eigen::VectorXf mean;
-	Eigen::MatrixXf covariance;
+	//Eigen::VectorXf mean;
+	//Eigen::MatrixXf covariance;
 
 	float best_score = 0.f;
 	bool const warm_start = false;
@@ -1218,8 +1219,8 @@ void animation_2d_app::do_train()
 		population = std::move(new_population);
 	}
 
-	(void)&controller::to_eigen;
-	(void)&controller::from_eigen;
+	//(void)&controller::to_eigen;
+	//(void)&controller::from_eigen;
 
 	std::vector<std::pair<float, std::size_t>> scores(population.size());
 	std::vector<async::future<void>> futures;
diff --git a/examples/physics_2d.cpp b/examples/physics_2d.cpp
index 9f07e38f..9826f2d0 100644
--- a/examples/physics_2d.cpp
+++ b/examples/physics_2d.cpp
@@ -18,9 +18,6 @@
 #include <psemek/random/generator.hpp>
 #include <psemek/random/uniform.hpp>
 
-#include <eigen3/Eigen/SVD>
-#include <eigen3/Eigen/Householder>
-
 #include <cstdint>
 #include <vector>