Added one of the original c++ version. Added _original suffix to the c# port for now.

fast_quadratic_mesh_simplifier.h

@@ -28,15 +28,9 @@ SOFTWARE.
 
 #include "core/reference.h"
 
-#include <limits>
-
-#include "mesh_utils.h"
-
 #include "core/array.h"
-#include "core/pool_vector.h"
-#include "core/resource.h"
 
-using namespace FQMS;
+#include "simplify.h"
 
 class FastQuadraticMeshSimplifier : public Reference {
 	GDCLASS(FastQuadraticMeshSimplifier, Reference);
@@ -65,25 +59,6 @@ public:
 	void simplify_mesh(float quality);
 	void simplify_mesh_lossless();
 
-	void update_mesh(int iteration);
-	void update_references();
-	void remove_vertex_pass(int startTrisCount, int targetTrisCount, double threshold, PoolVector<bool> *deleted0, PoolVector<bool> *deleted1, int *deletedTris);
-	void compact_mesh();
-	bool are_uvs_the_same(int channel, int indexA, int indexB);
-	double vertex_error(const SymmetricMatrix &q, const double x, const double y, const double z) const;
-	double calculate_error(const MUVertex &vert0, const MUVertex &vert1, Vector3 *result);
-	void update_triangles(int i0, int ia0, const MUVertex &v, PoolVector<bool> *deleted, int *deletedTriangles);
-	bool flipped(const Vector3 &p, int i0, int i1, const MUVertex &v0, PoolVector<bool> *deleted);
-	static Vector3 calculate_barycentric_coords(Vector3 const &point, Vector3 const &a, Vector3 const &b, Vector3 const &c);
-	void interpolate_vertex_attributes(int dst, int i0, int i1, int i2, const Vector3 &barycentricCoord);
-
-	void remove_doubles();
-	void remove_doubles_hashed();
-
-	static double min3(double val1, double val2, double val3) {
-		return (val1 < val2 ? (val1 < val3 ? val1 : val3) : (val2 < val3 ? val2 : val3));
-	}
-
 	FastQuadraticMeshSimplifier();
 	~FastQuadraticMeshSimplifier();
 
@@ -91,21 +66,7 @@ protected:
 	static void _bind_methods();
 
 private:
-	PoolVector<Vertex> _vertices;
-	PoolVector<int> _indices;
-
-	PoolVector<MUTriangle> _mu_triangles;
-	PoolVector<MUVertex> _mu_vertices;
-	PoolVector<MURef> _mu_refs;
-
-	double _vertex_link_distance_sqr = std::numeric_limits<double>::epsilon();
-	int _max_iteration_count;
-	double _agressiveness;
-	bool _enable_smart_link;
-	bool _preserve_border_dges;
-	bool _preserve_uv_seam_edges;
-	bool _preserve_uv_foldover_edges;
-	int _format;
+	Simplify::FQMS simplify;
 };
 
 #endif

fast_quadratic_mesh_simplifier_original.h

@@ -0,0 +1,111 @@
+#ifndef FAST_QUADRATIC_MESH_SIMPLIFIER_ORIGINAL_H
+#define FAST_QUADRATIC_MESH_SIMPLIFIER_ORIGINAL_H
+
+/*
+
+Copyright (c) 2020 Péter Magyar
+Copyright(c) 2017-2020 Mattias Edlund
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+*/
+
+#include "core/reference.h"
+
+#include <limits>
+
+#include "mesh_utils.h"
+
+#include "core/array.h"
+#include "core/pool_vector.h"
+#include "core/resource.h"
+
+using namespace FQMS;
+
+class FastQuadraticMeshSimplifier : public Reference {
+	GDCLASS(FastQuadraticMeshSimplifier, Reference);
+
+public:
+	int get_max_iteration_count() const;
+	void set_max_iteration_count(const int value);
+
+	double get_agressiveness() const;
+	void set_agressiveness(const double value);
+
+	bool get_enable_smart_link() const;
+	void set_enable_smart_link(const bool value);
+
+	bool get_preserve_border_dges() const;
+	void set_preserve_border_dges(const bool value);
+
+	bool get_preserve_uv_seam_edges() const;
+	void set_preserve_uv_seam_edges(const bool value);
+
+	bool get_preserve_uv_foldover_edges() const;
+	void set_preserve_uv_foldover_edges(const bool value);
+
+	void initialize(const Array &arrays);
+	Array get_arrays();
+	void simplify_mesh(float quality);
+	void simplify_mesh_lossless();
+
+	void update_mesh(int iteration);
+	void update_references();
+	void remove_vertex_pass(int startTrisCount, int targetTrisCount, double threshold, PoolVector<bool> *deleted0, PoolVector<bool> *deleted1, int *deletedTris);
+	void compact_mesh();
+	bool are_uvs_the_same(int channel, int indexA, int indexB);
+	double vertex_error(const SymmetricMatrix &q, const double x, const double y, const double z) const;
+	double calculate_error(const MUVertex &vert0, const MUVertex &vert1, Vector3 *result);
+	void update_triangles(int i0, int ia0, const MUVertex &v, PoolVector<bool> *deleted, int *deletedTriangles);
+	bool flipped(const Vector3 &p, int i0, int i1, const MUVertex &v0, PoolVector<bool> *deleted);
+	static Vector3 calculate_barycentric_coords(Vector3 const &point, Vector3 const &a, Vector3 const &b, Vector3 const &c);
+	void interpolate_vertex_attributes(int dst, int i0, int i1, int i2, const Vector3 &barycentricCoord);
+
+	void remove_doubles();
+	void remove_doubles_hashed();
+
+	static double min3(double val1, double val2, double val3) {
+		return (val1 < val2 ? (val1 < val3 ? val1 : val3) : (val2 < val3 ? val2 : val3));
+	}
+
+	FastQuadraticMeshSimplifier();
+	~FastQuadraticMeshSimplifier();
+
+protected:
+	static void _bind_methods();
+
+private:
+	PoolVector<Vertex> _vertices;
+	PoolVector<int> _indices;
+
+	PoolVector<MUTriangle> _mu_triangles;
+	PoolVector<MUVertex> _mu_vertices;
+	PoolVector<MURef> _mu_refs;
+
+	double _vertex_link_distance_sqr = std::numeric_limits<double>::epsilon();
+	int _max_iteration_count;
+	double _agressiveness;
+	bool _enable_smart_link;
+	bool _preserve_border_dges;
+	bool _preserve_uv_seam_edges;
+	bool _preserve_uv_foldover_edges;
+	int _format;
+};
+
+#endif