Bouncing off rotating hexagon?

[ratty]

bounce.png

I've been playing with bouncing things off spinning geometry (hexagons, octagons, etc).

Based off that image, what seems a good way to handle the red dots bouncing within the yellow area of both image A and B? Keep in mind, the black line of the hexagon will be rotating? I've been playing with this, but as always, am curious how others would handle this.

Additionally, I've been playing with having each side of the hexagons, octagons, etc being recognized individually and producing a different effect on collision.

[tompa]

Interesting

One solution is to have 2 actives, one with walls and one with yellowness (background). They would then rotate at the same speed. Balls would need perfect pixel detection against the walls.
The only problematic part would be to calculate the output angle for balls after impact. I would do it with orbital positioning.

Then again it could also be possible with the "Bouncing ball" movement

[ratty]

I've used bouncing ball as a stand in but it obviously lacks some finer detail of movement. I'll have to play with the orbiting to have each side of the geometric shape it's own active so I can consider collisions with each side separately. The math might get the better of me, however.

[tompa]

yes, I agree.
Well there are some extensions that does the orbital math.

Also I did this example a few days back that might shed some light.

[ratty]

Very nice, tompa.

By the way, what is your avatar from?

[ratty]

I've got a question. Is there an easy thing to tweak to slow down the rotation speed in that example?

[tompa]

oh hehe, its from an old snes game called chrono trigger.

A simple slower rotation would be to store the angle in a alt Value and then add/sub decimals to it. It will be orbiting very smoothly even at distance.

[ratty]

^I like both of those answers. I didn't recognize the enemy but I played the hell out of chrono trigger in my day.

[ratty]

This leaves me off at a point I've been stuck at before. Custom bouncing ball movements. I've been digging through stuff for the past year on and off and still havent found anything definitive. Who knew such a seemingly simple action could be so difficult!