math_test.cpp

Go to the documentation of this file.

// MIT License

// Copyright (c) 2020 Erin Catto

// 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 "box2d/box2d.h"
#include "doctest.h"
#include <stdio.h>

DOCTEST_TEST_CASE("math test")
{
        SUBCASE("sweep")
        {
                // From issue #447
                b2Sweep sweep;
                sweep.localCenter.SetZero();
                sweep.c0.Set(-2.0f, 4.0f);
                sweep.c.Set(3.0f, 8.0f);
                sweep.a0 = 0.5f;
                sweep.a = 5.0f;
                sweep.alpha0 = 0.0f;

                b2Transform transform;

                sweep.GetTransform(&transform, 0.0f);
                DOCTEST_REQUIRE_EQ(transform.p.x, sweep.c0.x);
                DOCTEST_REQUIRE_EQ(transform.p.y, sweep.c0.y);
                DOCTEST_REQUIRE_EQ(transform.q.c, cosf(sweep.a0));
                DOCTEST_REQUIRE_EQ(transform.q.s, sinf(sweep.a0));

                sweep.GetTransform(&transform, 1.0f);
                DOCTEST_REQUIRE_EQ(transform.p.x, sweep.c.x);
                DOCTEST_REQUIRE_EQ(transform.p.y, sweep.c.y);
                DOCTEST_REQUIRE_EQ(transform.q.c, cosf(sweep.a));
                DOCTEST_REQUIRE_EQ(transform.q.s, sinf(sweep.a));
        }
}