Arrays allow you to store multiple objects in a single variable.
The Array class is only available in Javascript.
Aquí hay un ejemplo básico de lo que puede hacer con la clase Array:
function Start () { var arr = new Array ();
// Add one element arr.Push ("Hello"); // print the first element ("Hello") print(arr[0]);
// Resize the array arr.length = 2; // Assign "World" to the second element arr[1] = "World"; // iterate through the array for (var value : String in arr) { print(value); } }
The Array class is only available in Javascript.
There are two types of arrays in Unity, builtin arrays and normal Javascript Arrays.
Builtin arrays (native .NET arrays), are extremely fast and efficient but they can not be resized
They are statically typed which allows them to be edited in the inspector. Here is a basic example of how you can use builtin arrays:
// Exposes an float array in the inspector, // which you can edit there. var values : float[];
function Start () { // iterate through the array for (var value in values) { print(value); }
// Since we can't resize builtin arrays // we have to recreate the array to resize it values = new float[10];
// assign the second element values[1] = 5.0; }
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { // Exposes an float array in the inspector, which you can edit there. public float[] values; void Start() { foreach (float value in values) { print(value); }
// Since we can't resize builtin arrays // we have to recreate the array to resize it values = new float[10];
// assign the second element values[1] = 5.0F; } }
Builtin arrays are useful in performance critical code (With Unity's javascript and builtin arrays you could easily process 2 million vertices using the mesh interface in one second.)
Normal Javascript Arrays on the other hand can be resized, sorted and can do all other operations you would expect from an array class.
Javascript Arrays do not show up in the inspector.
You can easily convert between Javascript Arrays and builtin arrays.
function Start () { var array = new Array (Vector3(0, 0, 0), Vector3(0, 0, 1)); array.Push(Vector3(0, 0, 2)); array.Push(Vector3(0, 0, 3));
// Copy the js array into a builtin array var builtinArray : Vector3[] = array.ToBuiltin(Vector3) as Vector3[]; // Assign the builtin array to a js Array var newarr = new Array (builtinArray); // newarr contains the same elements as array print (newarr); }
The Array class is only available in Javascript.
Note that Array's functions are upper case following Unity's naming convention.
As a convenience for javascript users, Unity also accepts lower case functions for the array class.
Note: Unity doesn't support serialization of a List of Lists, nor an Array of Arrays.
length | The length property of the array that returns or sets the number of elements in array. |
Array | Crea un Array de tamaño fijo. |
Add | Agrega value al final del array. |
Clear | Vacía el array. El tamaño del array será cero (0). |
Concat | Concat une dos o más Arrays. |
Join | Une el contenido de un Array en un String. |
Pop | Elimina el último elemento del array, y lo devuelve. |
Push | Agrega value al final del array. |
RemoveAt | Elimina del Array el elemento en la posición index. |
Shift | Elimina el primer elemento del Array y lo devuelve. |
Sort | Ordena todos los elementos del Array. |
Unshift | Unshift adds one or more elements to the beginning of an array and returns the new length of the array. |