either...or IF statements

Unity Engine
1

Need to get the either…or if statement to work. By this I mean if condition A or B is met. According the ref guide, the " | " symbol is used (ex. if (x == 1 | 2 | 3). I want to use it for three separate objects : “targ1” “targ2” “targ3”. I haven’t found the correct syntax to do this for object names or tags.

function OnCollisionEnter(shotCollide : Collision)	
{
	
	if (shotCollide.gameObject.name ==("targ1" | "targ2" | "targ3"))   //this syntax is wrong
	{
				
		
	        if(!shotCollide.gameObject.rigidbody)
		{
			shotCollide.gameObject.AddComponent(Rigidbody);			
			
		}
	}
}
2

It’s || (double pipe), as in:

if (shotCollide.gameObject.name == "targ1" || shotCollide.gameObject.name == "targ2" || shotCollide.gameObject.name == "targ3")
3

alternatively… (if you like filthy hacks)

if("targ1targ2targ3".Contains(gameObject.name))
{

}
4

Some options:

var name = "targ1";


//All of these return true for targ1, targ2 and targ3... but vary in *how* strict they are and how flexible.
Console.WriteLine("targ1targ2targ3".Contains(name));  //Warning, this returns true for 'g1tar' etc.
Console.WriteLine(new[] { "targ1", "targ2", "targ3" }.Contains(name));
Console.WriteLine(name == "targ1" || name == "targ2" || name == "targ3");
int temp;
Console.WriteLine(name.StartsWith("targ")  //any suffix is fine
                   int.TryParse(name.Remove(0, 4), out temp)  //any integer suffix
                   temp > 0  temp < 4);  //within a certain range.
Console.ReadLine();
5

Interesting. Never thought of this.

6

There’s a good reason he’s calling it a “filthy hack”, though.

7

I prefer linq lol

string[] stringArray = { "targ1", "targ2", "targ3", "targ4" };
if(stringArray.All(s => shotCollide.gameObject.name.Contains(s))){
//Do something
}
8

thanks for all the answers; i considered using an array but decided otherwise

9

Note that if you are using UnityScript or Boo, you can use the ‘in’ keyword.

Like Contains() but with nicer syntax. Boo Example below:

if shotCollide.gameObject in ["targ1", "targ2", "targ3"]:
    DoSomething()
10

Don’t you mean ‘Any’?

Since I’m a C# fanatic, I’d suggest doing something like the following:

if (shotCollide.gameObject.name.In("targ1", "targ2", "targ3")
    DoSomething();

....


public static class Helper
{
    public static bool In(this string element, params string[] collection)
    {
        return collection.Contains(element);
    }
}