att
void RigidBody2D::ApplyLinearImpulse(const Vector2& impulse, const Vector2& point, bool wake)
{
if (body_ && impulse != 0)
body_->ApplyLinearImpulse(ToB2Vec2(impulse), ToB2Vec2(point), wake);
}
should be
void RigidBody2D::ApplyLinearImpulse(const Vector2& impulse, const Vector2& point, bool wake)
{
if (body_ && impulse != Vector2::ZERO)
body_->ApplyLinearImpulse(ToB2Vec2(impulse), ToB2Vec2(point), wake);
}
because vector2 not offered int to vector2 construction.
