smkplus

using UnityEngine;

public class Human : Observer
{
    public string Name;

    public override void OnNotify()
    {
        SayHello();
    }

smkplus

using System;
using UnityEngine;

public class Subject : MonoBehaviour
{
    //delegate that stores the list of methods
    public static Action onNotify;

    private void Start()
    {

smkplus

namespace System
{
  public delegate void Action();
}

smkplus

using System;
using UnityEngine;

public class Human : MonoBehaviour
{
    public string Name;

    private void Awake()
    {
        Subject.OnNotify += SayHello;

smkplus

using UnityEngine;

public class Subject : MonoBehaviour
{
    //delegate that stores the list of methods
    public delegate void Observer();
    public static Observer OnNotify;

    private void Start()
    {

smkplus

using UnityEngine;

public abstract class Observer : MonoBehaviour
{
    public abstract void OnNotify();
}

smkplus

using System.Collections.Generic;
using UnityEngine;

//Invokes the notificaton method
public class Subject : MonoBehaviour
{
    //A list with observers that are waiting for something to happen
    public List<Observer> observers = new List<Observer>();

    private void Start()

smkplus

Shader "Custom/Texture2DArraySurfaceShader"
{
    Properties
    {
        _Textures("Textures", 2DArray) = "" {}
    }

    SubShader
    {
        Tags { "RenderType"="Opaque" }

smkplus

Unity shader side:

UNITY_DECLARE_TEX2DARRAY(name)
UNITY_SAMPLE_TEX2DARRAY(name,coord) // coord is float3

On DX11-like systems (DX11, and I'd assume XB1/PS4) the macros expand to:

#define UNITY_DECLARE_TEX2DARRAY(name) Texture2DArray(name); SamplerState sampler##name
#define UNITY_SAMPLE_TEX2DARRAY(name,coord) name.Sample(coord)

smkplus

// Used to generate Texture Array asset
// Menu button is available in GameObject > Create Texture Array
// See CHANGEME in the file
using UnityEngine;
using UnityEditor;

public class TextureArray : MonoBehaviour {

    [MenuItem("GameObject/Create Texture Array")]
    static void Create()