Creating Properties

Ternary Operator

Statics

Method Overloading 

Generics

Inheritance

Polymorphism

Member Hiding

Overriding

Interfaces

Extension Methods 

Namespaces

Lists and Dictionaries 

Coroutines

Quaternions

Delegates

Attributes

Events

Polymorphism and casting

This collection of tutorials is an excellent reference point for teachers or students who want to review the higher-level conceptual concepts for developing with Unity. The tutorials included here are intended for people who already have experience with basic scripting and want to understand at a more conceptual level what they’re doing and what is possible with scripting. These skills and concepts are fundamental for anyone who is considering entering the field of computer science.

Before reviewing the tutorials here, it is recommended that you understand all of the concepts covered in “Beginner Scripting” and have completed at least one or two more complex projects or creator kids, such as:

This project contains essential knowledge for intermediate level scripting with these video tutorials. 

Intermediate Scripting

b23a3563-3275-5e29-a6b1-e013b1bbca06:IJ50VM7ryBj2kIwUvpB1q4

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_9_Overriding.mp4

How to override a base class's members with the members of a child class. 

Games

Explain how abstraction is used to expose only necessary script components

Explain how inheritance is used to share functionality between a parent and child class

Define the relationship between a parent and child class, including what a child class can and cannot do with respect to its parent class

Recognize opportunities where inheritance could be used to simplify code

Describe how polymorphism can be applied at compile time (method overloads) and run time (method overrides)

Explain how polymorphism is used to modify parent class functionality in a child class

Explain how encapsulation is used to write code that can only be used as intended by the programmer

Recommend a high-level system architecture for a given project 

Simplify code and make it reusable by correctly implementing the principles of inheritance and polymorphism

using UnityEngine;
using System.Collections;

public class Fruit 
{
    public Fruit ()
    {
        Debug.Log("1st Fruit Constructor Called");
    }

    //These methods are virtual and thus can be overriden
    //in child classes
    public virtual void Chop ()
    {
        Debug.Log("The fruit has been chopped.");        
    }

    public virtual void SayHello ()
    {
        Debug.Log("Hello, I am a fruit.");
    }
}


using UnityEngine;
using System.Collections;

public class Apple : Fruit 
{
    public Apple ()
    {
        Debug.Log("1st Apple Constructor Called");
    }

    //These methods are overrides and therefore
    //can override any virtual methods in the parent
    //class.
    public override void Chop ()
    {
        base.Chop();
        Debug.Log("The apple has been chopped.");        
    }

    public override void SayHello ()
    {
        base.SayHello();
        Debug.Log("Hello, I am an apple.");
    }
}


using UnityEngine;
using System.Collections;

public class FruitSalad : MonoBehaviour 
{    
    void Start () 
    {
        Apple myApple = new Apple();

        //Notice that the Apple version of the methods
        //override the fruit versions. Also notice that
        //since the Apple versions call the Fruit version with
        //the "base" keyword, both are called.
        myApple.SayHello();
        myApple.Chop();    

        //Overriding is also useful in a polymorphic situation.
        //Since the methods of the Fruit class are "virtual" and
        //the methods of the Apple class are "override", when we 
        //upcast an Apple into a Fruit, the Apple version of the 
        //Methods are used.
        Fruit myFruit = new Apple();
        myFruit.SayHello();
        myFruit.Chop();
    }
}


Overriding

1. Overriding

Complete this tutorial