Verified answer

make sure the star has mass. much more than the mass of the planet, but much less than the mass of the black hole (check google for realistic values.)

Then you must make sure the planet is near the star, within the Hill Sphere of the star, the star needs to be moving relative to the black hole, and the planet needs to move relative to the star, but not so fast that it escapes.

study Kepler's laws, newtons laws of motion and gravity

all motion is relative it depends on the arbitrary choice of what is zero of position

if a pull is at right angles to the velocity it changes direction but not speed

only in the extremely rare case where an object is "falling" exactly along a radius to the center of the larger mass will there ever be a collision any side motion at all makes and orbit

a simulation is only as good as the math model and program

GIGO = garbage In = Garbage Out