Hoop net's animation ,skinning multiple joints as whole or strecthing image

mefisto · December 2012

We are making a basketball game , and i hope next week we will start beta testing . But i was not happy with hoop net's animation so i changed my design as fallows:

The original implementation is more complex then that but will give general idea. If ball contacts with middle sensor then i am inceasing distance joints length. If last sensor is activeted i set sensor to initial length. Anyway i am currently very happy about animation in debug draw mode.

Now , what i am concerned about is skinning to animation. Currently i am plannig to draw a line between wheel joint points but i prefer to assigning an image for net or any other skinning option. So , is it possible to strecth an image in this design?

Scouser · December 2012

Somebody with a better understanding of the Mesh API could probably help you with a better explanation but as I understand it you could create a mesh using the joints as vertices and apply a texture to the mesh (setting u,v texture coordinates per vertex). Then when you move a joint, you move the mesh vertex at the same time but leave the u,v texture coordinate alone, this should give the effect you want.

ar2rsawseen · December 2012

Would really want to see the example @Scouser mentioned, sounds like it could do the trick.

About physics model, is there any specific reason for having 3 sensors instead of a single middle one on the distance joint?

mefisto · December 2012

Thanks @Scouser , i am now playing with mesh API.
@ar2sawseen i will consider to share an example whenever i have a little more free time

Orginal design has more sensors than this but let me explain. I am using 3 sensors to double check where ball is really coming from using simple state machine, correct order must be top,middle,bottom. User can hit ground first then ball can accidently go from bottom to top.In that case we are not counting shot as basket. Another reason is sometimes ball just hits to first sensor and returns to outside of the hoop because of force and angle, bad luck! So we can tell player that you were unlucky, if occurs again we can say player to you may cursed

. As a result i am using a lot of sensors to achieve better experiences between player and game.

ar2rsawseen · December 2012

@mefisto that makes sense, looks you've really thought it through

SimplesApps · November 2013

@mefisto At the end... did you use the Mesh API in order to give the net image the movement effect you wanted?

mefisto · November 2014

@SimplesApps sorry for my late answer i was busy with my ordinary jobs. After 1-2 year i working on it again. I see that you implemented similar of mesh design in your "Action Basket" game i think. After experimenting different design i decided to try simple animation of net because of mesh give me some kind of floating object feeling. I think mesh design is fun but it is so much time consuming if you look at what you get.

SimplesApps · November 2014

@mefisto Don't worry. It's better late (one year) than never.

Yes I've implemented a mesh design. As you say it's a solution that need much time to obtain a good result. In my case I wasted one weekend to get the movement of the net.

SimplesApps · November 2014

@mefisto Btw, about my "Action Basket" game did you see something wrong or that need some improvement?

I need true opinions in order to do it best.

Many thanks!

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