continuous motion

[shont]

This happened in our game. HSGV game, dribbler on wing about FT line extended dribbling toward basket. Defense bumps her on her way to basket. Dribbler was in the process of picking up dribble and going for a shot, ball was still by her hip getting ready to bring it up. Anyway I call the foul and count the basket. The coach was upset that I didn't call it on the floor since it was quite a ways away from the basket. I told him continuous motion. Just when does the shooting motion start? Should the shooter have the ball up in a "shooting position" in order to count the bucket? I am looking for some general guidelines.

Thanks

Shont