Oval collision help

[recneps]

i want to make a racing game, where you can go anywhere but a circle in the middle, but i cant seem to get the oval collision to work... maybe it doesnt work that way? i want to make it, so the car starts outside the circle in the middle, and cannot go in it? is that possible?

[Andy]

y dont u do the samething as the circle detection, but instead of plugging in the circle therum, u plug in the oval one? x^2+y^2=r1r2

[Tony]

neah, lol.

if its a perfect circle, you just check if the distance between centers of circle and the car and shorter then the radious of the circle or not 8)

[AsianSensation]

dodge_tomahawk wrote:

x^2+y^2=r1r2

you sure that's the ellipse formula?

isn't it something like this?

(x^2 / a^2) + (y^2 / b^2 )= 1

where a and b are the vertical and horizontal "radius"

[recneps]

id make it a perfect circle, and i deleted the old one lol, im gonna start fresh, and post what i get here in a day or so.

[recneps]

meh, i just scrapped this idea, ill come back to it later if i want a better game for my final project