2D Arrays of GameObjects

Question

I'm trying to make a 2D array of cubes for easy referencing, and I'm using this as my starting place. I tried testing it with integers and it works just fine, but whenever I try to use GameObjects I get a runtime error.

I added this to the MultiDim.cs:

public static GameObject[,] GameObjectArray (int a, int b) {
        return new GameObject[a,b];
    }

And then I have this in my main tester:

var cube : GameObject; var x = 2; var y = 2; var tiles;

function Start() { var i; var j;

 tiles = MultiDim.GameObjectArray(x,y);

 for(i = 0; i &lt; y; i++)
     for(j = 0; j &lt; x; j++)
     {
         Instantiate(cube, Vector3(j, 0, i), transform.rotation);
                 tiles[j,i] = cube;
     }

}

But I always get the runtime error: MissingFieldException: Field 'UnityEngine.GameObject[,].' not found;

Answer 1

Best Answer

Answer by Eric5h5 · Jan 19, 2011 at 06:48 PM

You can't use dynamic typing:

var tiles;

The point of using MultiDim is that it types the variable correctly using type inference:

var tiles = MultiDim.GameObjectArray(x,y);

You can resize the array later if necessary by using MultiDim again.

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Benjaben · Jan 19, 2011 at 07:02 PM 0

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Thanks. $$anonymous$$y other problem is now that I want to name each of the objects in the array, but if I try tiles[0,0].name = "0,0"; it changes every object's name in the array to "0,0".

Benjaben · Jan 19, 2011 at 07:11 PM 0

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never$$anonymous$$d I got it. I didn't realize that Instantiate returns the instance.

Answer 2

Answer by Benjaben · Jan 19, 2011 at 06:42 PM

Well I changed the line: tiles = MultiDim.GameObjectArray(x,y); to

var tiles = MultiDim.GameObjectArray(x,y);

and it worked? I guess I am not allowed to have global variables when using this?

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Answer 3

Answer by Eric5h5 · Feb 16, 2011 at 12:38 AM

In Unity 3.2 you can just do

var tiles : GameObject[,];

and you don't need MultiDim anymore.

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IMTRIGGERHAPPY9 · Sep 13, 2011 at 01:55 AM 0

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how do you put objects into this type of array though? like with the basic array you can use .add is there something similar with this type?

crazyKnight · Nov 10, 2011 at 09:46 AM 0

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how can me make a 2d array which can be edited in the inspector???

Eric5h5 · Nov 11, 2011 at 01:10 AM 0

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@crazy$$anonymous$$night: make a custom inspector.

2D Arrays of GameObjects

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