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Events

Understand high-level programming concepts (such as inheritance, encapsulation, data abstraction, and polymorphism) and how they are implemented. 

Level 2 Programming theory

Joy Horvath

Instructional Designer

U_Intermediate_18_Events.mp4

 How to create a dynamic "broadcast" system using Events. 

Games

Enable easier readability and debugging by correctly organizing classes to include only singular purpose code

Add new functionality to non-editable classes by applying extension methods

Organize and prevent conflicts between scripts by using namespaces

Manage the communication of a GameObject’s status changes to other objects in the application by using Events 

Write efficient, organized, and comprehensible code by correctly implementing the principles of object-oriented programming

Intermediate Scripting

using UnityEngine;
using System.Collections;

public class EventManager : MonoBehaviour 
{
    public delegate void ClickAction();
    public static event ClickAction OnClicked;


    void OnGUI()
    {
        if(GUI.Button(new Rect(Screen.width / 2 - 50, 5, 100, 30), "Click"))
        {
            if(OnClicked != null)
                OnClicked();
        }
    }
}


using UnityEngine;
using System.Collections;

public class TeleportScript : MonoBehaviour 
{
    void OnEnable()
    {
        EventManager.OnClicked += Teleport;
    }


    void OnDisable()
    {
        EventManager.OnClicked -= Teleport;
    }


    void Teleport()
    {
        Vector3 pos = transform.position;
        pos.y = Random.Range(1.0f, 3.0f);
        transform.position = pos;
    }
}

using UnityEngine;
using System.Collections;

public class TurnColorScript : MonoBehaviour 
{
    void OnEnable()
    {
        EventManager.OnClicked += TurnColor;
    }


    void OnDisable()
    {
        EventManager.OnClicked -= TurnColor;
    }


    void TurnColor()
    {
        Color col = new Color(Random.value, Random.value, Random.value);
        renderer.material.color = col;
    }
}


Events

1. Events

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