How to manage enemy deplacement and shoot in a shmup?

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Published on 2011-02-19T00:43:33Z Indexed on 2011/02/19 7:33 UTC
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I'm wondering what is the best (or at least a good) way of managing enemies in a shoot-em-up.

Basically, what I'd do would be a class that manages displaying and updating positions of all the enemies. But how to create good deplacements for enemies? A list of where-to-go points? gravitating around some fixed points (with ponderation, distance evaluation etc.)?

Same question for the shoot patterns?

Can you please put me on a track?

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