Adding two variables from two different scripts.

Question

Hello, I am trying to figure out how to add two variables from two scripts.

So let's say we have two scripts.

ScriptOne:

  public ScriptTwo scriptTwo;
  public float mainNumber;
  public Button click;
  
  public void Click()
  {
  mainNumber += 1;
  }

So everytime to you click the button, it adds 1 to the "mainNumber" variable.

ScriptTwo:

  public float numberTwo;
  public Button click;
  
  public void Click()
  {
  numberTwo += 1;
  }

So now Button Two will do the same thing but add 1 per click to the "numberTwo" variable.

So back to ScriptOne, I want numberTwo to be added to mainNumber. Let's say numberTwo is 3 and mainNumber is 3. The ending result would be 5.

I tried doing mainNumber = mainNumber + scriptTwo.numberTwo but the number would just go up really fast and constantly. Anyone have a solution to this? (Hoping this was as clear as possible).

Answer 1

Best Answer

Answer by Eicher · Jun 01, 2017 at 08:12 AM

Quick solution, may not be the best:

Define a static class with two static variables. Those variables can then be used in any script of yours. The variables are bound to the class itself, rather than to a class instance.

 public static class StaticNumbers
 {
      public static float mainNumber;
      public static float numberTwo;
 
 }

Then simply access them in your script like:

 public void Click()
   {
   StaticNumbers.numberTwo += 1;
   }

Finally, you can simply add them like this:

 StaticNumbers.numberTwo + StaticNumbers.mainNumber

If you reset the scene/game, also remember to reset the static variables to their original value.

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rallyall · Feb 28, 2020 at 05:28 AM 0

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What do you mean

Finally, you can simply add them like this:

StaticNumbers.numberTwo + StaticNumbers.mainNumber

So

public static float StaticNumbers.numberTwo + StaticNumbers.mainNumber;

Would these need to be inside a method or function? Can you do something like:

public static float StaticNumbers.numberTwo + StaticNumbers.mainNumber = finalNumber;

Then later...

public void BlahBlah(){ Debug.Log(finalNumber); }

And that all should work?

Answer 2

Answer by ShadyProductions · May 31, 2017 at 06:59 AM

If you do a little searching on google or unity answers you will find multiple of these same questions already answered.

You have to get the script component of the gameobject if it is a monobehaviour like so:

 var script = yourobject.GetComponent<YOURSCRIPTNAME>();
 script.mainNumber = 5;

However if the script is not monobehaviour you will either have to make the script static so you can access it right away like:

ScriptName.mainNumber = 5;

or make a new instance if static is not an option like:

 var script = new YOURSCRIPTNAME();
 script.mainNumber;

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game4444 · May 31, 2017 at 11:15 AM 1

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He is not asking about assigning number. He is asking about adding two numbers from 2 different scripts. Your answer is about assignment of variables from other scripts.

ShadyProductions game4444 · May 31, 2017 at 11:24 AM 0

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it is the same principe.

ZachAttack9280 · Jun 01, 2017 at 04:52 AM 0

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This is in js not c# so I don't know how to compare.

Answer 3

Answer by AdhikS · Jun 03, 2017 at 11:33 AM

declare your variables as static.then you can change or access the value of one variable from another script

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Answer 4

Answer by game4444 · Jun 03, 2017 at 11:33 AM

the number would just go up really fast?? Its not clear. Please elaborate more. If your add coding is in Update it will run again n again. It will increase your count very fast. So please explain bit more.

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Adding two variables from two different scripts.

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