#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2015 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_GEOMETRY_SOURCE 1

#include "Nuclex/Geometry/Areas/Triangle3.h"
#include <gtest/gtest.h>

namespace Nuclex { namespace Geometry { namespace Areas {

  // ------------------------------------------------------------------------------------------- //

  TEST(Triangle3Test, ParameterConstructorAssignsValues) {
    Triangle3<float> triangle(
      Point3<float>(1.1f, 2.2f, 3.3f),
      Point3<float>(4.4f, 5.5f, 6.6f),
      Point3<float>(7.7f, 8.8f, 9.9f)
    );

    EXPECT_EQ(1.1f, triangle.A.X);
    EXPECT_EQ(2.2f, triangle.A.Y);
    EXPECT_EQ(3.3f, triangle.A.Z);
    EXPECT_EQ(4.4f, triangle.B.X);
    EXPECT_EQ(5.5f, triangle.B.Y);
    EXPECT_EQ(6.6f, triangle.B.Z);
    EXPECT_EQ(7.7f, triangle.C.X);
    EXPECT_EQ(8.8f, triangle.C.Y);
    EXPECT_EQ(9.9f, triangle.C.Z);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Triangle3Test, CenterOfTriangleCanBeDetermined) {
    Triangle3<float> triangle(
      Point3<float>(1.1f, 2.2f, 3.3f),
      Point3<float>(4.4f, 5.5f, 6.6f),
      Point3<float>(7.7f, 8.8f, 9.9f)
    );

    Point3<float> center = triangle.GetCenter();
    EXPECT_EQ(4.4f, center.X);
    EXPECT_EQ(5.5f, center.Y);
    EXPECT_EQ(6.6f, center.Z);
  }

  // ------------------------------------------------------------------------------------------- //
#if 0
  TEST(Triangle3Test, TriangleSurfaceAreaCanBeCalculated) {
    Triangle3<float> triangle(
      Point3<float>(1.1f, 2.2f), Point2<float>(3.3f, 9.9f), Point2<float>(5.5f, 1.1f)
    );

    EXPECT_FLOAT_EQ(18.149998886345646f, triangle.GetArea());
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Triangle3Test, TrianglePerimeterCanBeCalculated) {
    Triangle3<float> triangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 9.9f), Point2<float>(5.5f, 1.1f)
    );

    EXPECT_FLOAT_EQ(21.614368f, triangle.GetPerimeter());
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Triangle3Test, TrianglesCanBeShiftedByCoordinates) {
    Triangle3<float> triangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 9.9f), Point2<float>(5.5f, 1.1f)
    );
    triangle.ShiftBy(10.0f, 100.0f);

    EXPECT_EQ(11.1f, triangle.A.X);
    EXPECT_EQ(102.2f, triangle.A.Y);
    EXPECT_EQ(13.3f, triangle.B.X);
    EXPECT_EQ(109.9f, triangle.B.Y);
    EXPECT_EQ(15.5f, triangle.C.X);
    EXPECT_EQ(101.1f, triangle.C.Y);
  }

  // ------------------------------------------------------------------------------------------- //

  TEST(Triangle3Test, TrianglesCanBeShiftedByVectors) {
    Triangle3<float> triangle(
      Point2<float>(1.1f, 2.2f), Point2<float>(3.3f, 9.9f), Point2<float>(5.5f, 1.1f)
    );
    triangle.ShiftBy(Vector2<float>(100.0f, 10.0f));

    EXPECT_EQ(101.1f, triangle.A.X);
    EXPECT_EQ(12.2f, triangle.A.Y);
    EXPECT_EQ(103.3f, triangle.B.X);
    EXPECT_EQ(19.9f, triangle.B.Y);
    EXPECT_EQ(105.5f, triangle.C.X);
    EXPECT_EQ(11.1f, triangle.C.Y);
  }
#endif
  // ------------------------------------------------------------------------------------------- //

}}} // namespace Nuclex::Geometry::Areas