Body * World::findById(int id) const
{
for(const b2Body * b2ody = getB2World()->GetBodyList(); b2ody; b2ody = b2ody->GetNext())
{
Body * body = static_cast<Body *>(b2ody->GetUserData());
if(body->getId() == id)
return body;
}
ythrow(std::runtime_error, "ID " << id << " не найден.");
}
bool World::createMouseJoint(const Vec2f & mousePos)
{
Body * body = findFirstByPos(mousePos);
if(body == nullptr || body->getId() == 1 || !body->isDynamic())
return false;
body->getB2Body()->SetAwake(true);
b2MouseJointDef jd;
jd.bodyA = findById(1)->getB2Body(); // Не используется
jd.bodyB = body->getB2Body();
jd.target = mousePos.toB2Pos();
jd.collideConnected = true;
jd.maxForce = body->getB2Body()->GetMass() * 1000;
_mouseJoint = static_cast<b2MouseJoint *>(getB2World()->CreateJoint(&jd));
return true;
}
