ROTATE behaviour

Hi

I got a Wheel object and I am trying to apply ROTATE action. Wheel is rotating fine when I touch and drag. I am not able to find how to decrease the speed of wheel slowly and stop.

Could anyone please guide me for this problem?

Many Thanks

Set the rotate behavior's acceleration to a negative value to make it slow down. And then disable it or set the speed to 0 when the speed is <= 0.

Great Ramones, Thanks for your repsonse. It helped me. Now when I set to negative value then wheel is reducing its speed which is great and then started moving back.

I am trying for the event when wheel speed is <=0 to set the wheel rotate speed= 0 and acceleration =0 but no luck.

Could you please help me on which event I can set speed=0 and acceleration =0 for the wheel so that wheel will stop slowly?

Many Thanks

Ramones, sorry for silly question. I got the solution now. Slowly getting used to this great tool.

Many Thanks.

Hi Ramones and Friends,

Regarding the Wheel, when it stops then we would like to know who won based on the position of the wheel where it stopped. We have put a pointer at the top center of the wheel.

Please could you let me know how to handle and implement these kind of scenarios?

Many Thanks

You can use the angle of the wheel to determine which value is at the top.

For a wheel with 4 segments you can take the angle / 90 and round it down to get a value 0, 1, 2, or 3.

floor(angle / 90)[/code:3slveguu]
[code:3slveguu]angle 0-90: floor(angle / 90) = 0
angle 90-180: floor(angle / 90) = 1
angle 180-270: floor(angle / 90) = 2
angle 270-360: floor(angle / 90) = 3[/code:3slveguu]

If you want the wheel to look like this:
[img="https://dl.dropboxusercontent.com/u/8367729/construct/sprites/wheel/wheel_4_segments.png"]
Then you need to add 45 degrees to the angle and use modulo 360 to prevent it going above 360.
[code:3slveguu]floor(((angle + 45) % 360) / 90)[/code:3slveguu]

Generalising that:
The value 90 is 360 / number of segments
The value 45 is 360 / number of segments / 2 [b]=[/b] 180 / number of segments

So the formula for a wheel with any number of segments is:
[code:3slveguu]floor(((angle + (180 / numSegments)) % 360) / (360 / numSegments))[/code:3slveguu]