C#: Array question, check value

Question

Hi! I got a few floats and I want to be able to check when 1 of them has set a value to it. Like when x1 = 20f; I want to be able to check it. And if so, how to remove that value. I'm not sure how to do this. I thought an array or something but I'm not sure how to check if one has a value.

The floats: v

     private float x1;
     private float x2;
 
     private float y1;
 
     private float z1;
     private float z2;
     private float z3;

Answer 1

Answer by mattyman174 · Mar 20, 2014 at 10:06 AM

 private float[] floatArray = new float[6] {1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f};  //  Define a new float array and give it the name 'floatArray', fill it with some values.
 
 public float x1;
 
 x1 = floatArray[0];  //  Assign the value in the first index of our floatArray to the variable x1;
 
 //  x1 will now equal 1.0f

Alternatively instead of assigning values to the Array in its definition, you can assign values to its indices 1 at a time like so.

 private float[] floatArray = new float[6]; // Define the array.
 
 floatArray[0] = 1.0f; // Assign values one at a time to each index.
 floatArray[1] = 2.0f;
 floatArray[2] = 3.0f;
 floatArray[3] = 4.0f;
 floatArray[4] = 5.0f;
 floatArray[5] = 6.0f;

Keep in mind that Arrays are of fixed length. The 0th index is always the first index in the array.

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ChrisJoosten · Mar 20, 2014 at 10:11 AM 0

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Yes thanks for your help. My goal is that only one of the floats can have a value for example 20, and the rest is put to 0. Hope im making my case clear here :)

mattyman174 · Mar 20, 2014 at 10:15 AM 1

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Just assign 0 to all other floats except the one you want to be different?

Is there a condition in which all other floats are to remain 0 or is this just your preference for the moment?

From the limited information you have given i cannot provide a sufficient answer if your having other difficulties.

Assigning values to your array indicies is as simple as i have outlined above, if you want only a single float to be a value other than 0 refer to below.

     private float[] floatArray = new float[6]; // Define the array.
      
     floatArray[0] = 20.0f; // Assign values one at a time to each index.
     floatArray[1] = 0f;
     floatArray[2] = 0f;
     floatArray[3] = 0f;
     floatArray[4] = 0f;
     floatArray[5] = 0f;

Bunny83 · Mar 20, 2014 at 10:18 AM 0

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@ChrisJoosten: No, it's not really clear what you actually want to do. If only 1 of them is used at a time, why do you actually need the others? A single float variable and an additional int variable would serve the same purpose:

     float theValue = 20.0f;
     int theIndex = 5;

so the 5. "value" is set to 20

ChrisJoosten · Mar 20, 2014 at 10:19 AM 0

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It has to be dynamic.

Im using them to change the rotation from an object. so when i set the value of x1 to 20, the objects rotates/moves to that direction. That's why I only want one float at a time to have a value else the object will be flying randomly through the scene :p

C#: Array question, check value

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