Array problems

Questions & Answers
1

Hi

I’m having some trouble understanding the use of arrays(or lists?).
For an example i have 2 different arrays with Transforms called slaves and masters. I want to get the angle between the slave and master and afterwards i want to add torque to a rigidbody, i could do it manually like this:
AngleError[1] = Vector3.Angle(slave[1].up,master[1].up);
slaveRigidbody[1].AddTorque(slave[1].rightAngleError[1]);
and go on:
AngleError[2] = Vector3.Angle(slave[2].up,master[2].up);
slaveRigidbody[2].AddTorque(slave[2].rightAngleError[2]);
and so on…

But with 12 different masters and slaves it’s pretty time consuming. Is there a way to make this happen with only a single piece of code instead of 12?

Thanks in advance :slight_smile:

2

Hi,

as far as i understand u want to do this in a loop, so u dont have to type the 12 iterations. So it will be something like this.

  for (int i = 0; i <= AngleError.Length; i++) 
    {
            AngleError <em>= Vector3.Angle(slave_.up,master*.up);*_</em>

slaveRigidbody.AddTorque(slave_.rightAngleError);
}*
Note if u use List u need AngleError.Count;
If i understood ur Question wrong, sorry for the misunderstanding_

4

Rather than using a ForEach loop, simply use a For loop. A For loop is a loop which simply runs the same piece of code over and over again, passing that code a variable. The loop continues, increasing the variable each time until it reaches a set maximum. You can use for loops for different things, but that’s the main way you would use it. So, in this case it would be;

for (int i = 0; i < slave.Length; i++)
{
    AngleError <em>= Vector3.Angle(slave_.up,master*.up);*_</em>

slaveRigidbody.AddTorque(slave_.rightAngleError);
}*
And btw, arrays start at 0, not 1._

3

@Dytdyt why don’t you use loop?

for (int i = 0; i < slave.length; i++)
{
	AngleError <em>= Vector3.Angle(slave_.up, master*.up);*_</em>

slaveRigidbody.AddTorque(slave_.right * AngleError*);
}*
You also can use “while” loop if you want.
I hope it helps._