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openrw/tests/test_HitTest.cpp
2019-01-03 00:00:54 +00:00

92 lines
2.8 KiB
C++

#include <boost/test/unit_test.hpp>
#include "test_Globals.hpp"
#include <dynamics/HitTest.hpp>
#include <engine/GameWorld.hpp>
#include <dynamics/CollisionInstance.hpp>
#ifdef _MSC_VER
#pragma warning(disable : 4305 5033)
#endif
#include <btBulletDynamicsCommon.h>
#include <BulletCollision/CollisionDispatch/btGhostObject.h>
#ifdef _MSC_VER
#pragma warning(default : 4305 5033)
#endif
namespace {
struct HitTestFixture {
btDefaultCollisionConfiguration collisionConfig;
btCollisionDispatcher collisionDispatcher;
btDbvtBroadphase broadphase;
btGhostPairCallback overlappingPairCallback;
btSequentialImpulseConstraintSolver solver;
btDiscreteDynamicsWorld dynamicsWorld;
HitTest hitTest;
HitTestFixture()
: collisionDispatcher{&collisionConfig}
, dynamicsWorld{&collisionDispatcher, &broadphase, &solver, &collisionConfig}
, hitTest{dynamicsWorld}
{
broadphase.getOverlappingPairCache()->setInternalGhostPairCallback(
&overlappingPairCallback);
}
};
struct WithSphere : public HitTestFixture {
btSphereShape shape {0.5f};
std::unique_ptr<btRigidBody> target;
GameObject* object {reinterpret_cast<GameObject*>(0xDEADBEEF)};
WithSphere()
{
btDefaultMotionState ms;
btRigidBody::btRigidBodyConstructionInfo info {1.f, &ms, &shape};
target = std::make_unique<btRigidBody>(info);
target->setUserPointer(object);
dynamicsWorld.addRigidBody(target.get());
}
~WithSphere() {
dynamicsWorld.removeRigidBody(target.get());
}
};
}
BOOST_AUTO_TEST_SUITE(HitTestTests)
BOOST_FIXTURE_TEST_CASE(test_creation, HitTestFixture) {
HitTest test {dynamicsWorld};
}
BOOST_FIXTURE_TEST_CASE(sphereTest_returns_result, WithSphere) {
const auto result = hitTest.sphereTest({0.f, 0.f, 0.f}, 1.f);
BOOST_CHECK_EQUAL(result.size(), 1);
}
BOOST_FIXTURE_TEST_CASE(boxTest_returns_result, WithSphere) {
auto sphereBoundingBoxEdge = glm::vec3{ 0.f, 0.f, shape.getRadius() };
const auto result = hitTest.boxTest(sphereBoundingBoxEdge, {0.01f, 0.01f, 0.01f});
BOOST_CHECK_EQUAL(result.size(), 1);
}
BOOST_FIXTURE_TEST_CASE(non_overlapping_test_returns_nothing, WithSphere) {
auto sphereBoundingBoxEdge = glm::vec3{ shape.getRadius() };
const auto result = hitTest.boxTest(sphereBoundingBoxEdge * 2.f, {0.01f, 0.01f, 0.01f});
BOOST_CHECK(result.empty());
}
BOOST_FIXTURE_TEST_CASE(result_contains_body, WithSphere) {
const auto result = hitTest.sphereTest({0.f, 0.f, 0.f}, 1.f);
BOOST_ASSERT(result.size() == 1);
BOOST_CHECK_EQUAL(result[0].body, target.get());
}
BOOST_FIXTURE_TEST_CASE(test_result_contains_object, WithSphere) {
const auto result = hitTest.sphereTest({0.f, 0.f, 0.f}, 1.f);
BOOST_ASSERT(result.size() == 1);
BOOST_CHECK_EQUAL(result[0].object, object);
}
BOOST_AUTO_TEST_SUITE_END()