Fisica: setting the size of FCircle after init?

pointfive

Fisica: setting the size of FCircle after init?

in Contributed Library Questions • 2 years ago

Wonder how I'd go about changing the size of an FCircle on the fly. This seems doable on FBox with setWidth() and setHeight(), but I there doesn't seem to be an equivalent (i.e., setDiameter()) in FCircle. What the best way around this?

Thanks.

Replies(2)

ricardmp

Re: Fisica: setting the size of FCircle after init?

2 years ago

Try setSize()... but you'll need the newest release of Fisica (0.19) that was released just now!

But keep in mind that JBox2D doesn't really allow changing shape sizes during the simulation, so Fisica cheats by removing and readding a new object with a new size. But it should be quite transparent to the user, unless the body is attached to joints, in that case you may have to remake the joints. In the future I would like to make that transparent aswell, but it is a bit tricky. Oh well... this is still better than nothing.

cheers

pointfive

Re: Fisica: setting the size of FCircle after init?

2 years ago

Excellent... great news that there's a new Fisica version!

And I figured it JBox2D didn't allow changing sizes on the fly... but I'm hoping to scale a sensor based on velocity, so since nothing will be bouncing off, I assume it won't mess things up too much. (There is a joint involved so I'm glad you mentioned that.)

Thanks for all your help,

-Chris

Top Reply