assimp.assimp/test/unit/MathTest.h

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#ifndef ASSIMP_MATH_TEST_H
#define ASSIMP_MATH_TEST_H

#include "UnitTestPCH.h"
#include <assimp/types.h>
#include "RandomNumberGeneration.h"

namespace Assimp {

/** Custom test class providing several math related utilities. */
class AssimpMathTest : public ::testing::Test {
public:
    /** Return a random non-null 2D vector. */
    inline static aiVector2D random_vec2() {
        return aiVector2D(RandNonZero.next(), RandNonZero.next());
    }

    /** Return a random non-null 3D vector. */
    inline static aiVector3D random_vec3() {
        return aiVector3D(RandNonZero.next(), RandNonZero.next(),RandNonZero.next());
    }

    /** Return a random unit 3D vector. */
    inline static aiVector3D random_unit_vec3() {
        return random_vec3().NormalizeSafe();
    }

    /** Return a quaternion with random orientation and
      * rotation angle around axis. */
    inline static aiQuaternion random_quat() {
        return aiQuaternion(random_unit_vec3(), RandPI.next());
    }

    /** Return a random non-null 3x3 matrix. */
    inline static aiMatrix3x3 random_mat3() {
        return aiMatrix3x3(
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(),
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(),
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next());
    }

    /** Return a random non-null 4x4 matrix. */
    inline static aiMatrix4x4 random_mat4() {
        return aiMatrix4x4(
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next(),
            RandNonZero.next(), RandNonZero.next(),RandNonZero.next(), RandNonZero.next());
    }

    /** Epsilon value to use in tests. */
    static const float Epsilon;

    /** Random number generators. */
    static RandomUniformFloatGenerator RandNonZero, RandPI;
};

}

#endif // ASSIMP_MATH_TEST_H