Make a grid and turn it to List

Questions & Answers
1

Hi, i just start programming for unity 3d (3-4 days from now %) ) and make a simple script to make grid from cubes (you can choose how many cells you want to make) and its working… but i think its to complicated what i can change for simplicity? And one more question… how to sort this list? Thanks guyz!

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using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class CreateAGridFromCube : MonoBehaviour {

	public GameObject cube;

	public int horCells;
	public int verCells;

	public List<GameObject> cellsList = new List<GameObject>();

	// Use this for initialization
	void Start () {
		cellsList.Add (cube);
		MakeGrid (horCells,verCells);
	}

	void MakeGrid(int hor, int vert){
		for (int x = 0; (x + 1) < hor; x++) {
			GameObject clone = Instantiate (cube);
			clone.transform.position = new Vector3(clone.transform.position.x+1,clone.transform.position.y,clone.transform.position.z);
			clone.name = "1x" + (x + 2);
			for (int y = 0; (y+1) < vert; y++) {
				GameObject cloneV = Instantiate (cube);
				cloneV.transform.position = new Vector3(cloneV.transform.position.x,cloneV.transform.position.y-1,cloneV.transform.position.z);
				cloneV.name = (y + 2)+ "x" + (x + 1);
				cellsList.Add (cloneV);
				cube = cloneV;
			}
			cellsList.Add (clone);
			cube = clone;
		}
		int z = cellsList.Count - 1;
		GameObject fuckingLastClones = cellsList [z];
		for (int i = 0; (i+1) < vert; i++) {
			GameObject LastLastClones = Instantiate (fuckingLastClones);
			LastLastClones.transform.position = new Vector3(LastLastClones.transform.position.x,LastLastClones.transform.position.y-1,LastLastClones.transform.position.z);
			LastLastClones.name = (i+2) + "x" + hor;
			cellsList.Add (LastLastClones);
			fuckingLastClones = LastLastClones;
		}
	}
}
2

You definitely made the spawning much more complicated than is needed. For a static length grid I’d also use a 2d array, so that if you need to access a specific grid cube you can just pass in the x and y.

using UnityEngine;
using System.Collections;

public class CreateAGridArrayFromCube : MonoBehaviour
{
	public GameObject cube;

	public int horCells = 10;
	public int verCells = 10;
	public Vector3 startPos = new Vector3(0f, 0f, 0f);
	public float spacingX = 1f;
	public float spacingY = 1f;

	public GameObject[,] cellsArray;

	void Start()
	{
		MakeGrid(horCells, verCells);
	}

	void MakeGrid(int hor, int vert)
	{
		cellsArray = new GameObject[hor,vert];
		GameObject clone;
		Vector3 clonePos;
		for(int x = 0; x < hor; ++x)
		{
			for(int y = 0; y < vert; ++y)
			{
				clonePos = new Vector3(startPos.x + (x * spacingX), startPos.y + (y * spacingY), startPos.z);
				clone = Instantiate(cube, clonePos, Quaternion.identity) as GameObject;
				clone.name = (y + 1) + "x" + (x + 1);
				cellsArray[x,y] = clone;
			}
		}
	}
}

If you’d rather use the List, then you can replace these lines:

public GameObject[,] cellsArray;
cellsArray = new GameObject[hor,vert];
cellsArray[x,y] = clone;

with these:

public List<GameObject> cellsList;
cellsList = new List<GameObject>();
cellsList.Add(clone);

Then, to access a specific grid cube from the List (remember to start counting from 0):

cellsList[(x * verCells) + y];