How do I force a positive-only sine

Hi everyone,

If I assign the sine behavior to an object and have a Magnitude of 1, the sine will go all the way to 1, then all the way to -1 and so on.

What would be the best way to force it to go only from 0 to 1?

If you set the sine behaviour Movement field to "value only", you can then return a value between 0 and 1 in an action using the expression:

(object.sine.value+1)/2

You can then apply that expression to whatever variable you want the sine to be working on.

You can extend that formula to return a value between 0 an N:

N((object.sine.value+1)/2)

Thanks, that's exactly what I was looking for!

abs(object.sine.value) should work too

abs(object.sine.value) is definitely not the same. You alter the sin wave in a most likely unwanted way.

What could work too is using (object.sine.value + object.sine.magnitude) to return a value between 0 and 2*magnitude.

Magistross why can't you just use abs(Sine.Value) and double the interval?

You can, but the curve won't be sinusoidal.

Here, you can use google to plot both equations.

https://www.google.ca/?q=y%3Dabs(sin(x))%2C+y%3D(sin(x)%2B1)%2F2#safe=off&q=y%3Dabs(sin(0.5x))%2C+y%3D(sin(x-pi%2F2)%2B1)%2F2

Magistross

to much math for me, I'm outta here.

Anyways, thanks for explaining.