well in that case, the quickest command i can think of would be
Return Integer=OBJECT COLLISION(ObjectA Number, ObjectB Number)
but that is very inaccurate and i think it only goes by OBB, and if so it's unusable to detect collision against the world. there's also
Return Float=INTERSECT OBJECT(Object Number, X, Y, Z, ToX, ToY, ToZ)
which you can use creatively to suit your needs, especially when colliding with the world.
but srsly, these commands can get slow when used a lot and don't offer much, and there's no shame in using addons.

Remember those old guys? They made epic renders, I think one of them was called DaVinci, and all they used was MS Paint. Sometimes it's just skill....