Update and FixedUpdate

Checked with version: 4

-

Difficulty: Beginner

-

Date: 24 Jul 2015

How to effect changes every frame with the Update and FixedUpdate functions, and their differences.

Update and FixedUpdate

Beginner Scripting

UpdateAndFixedUpdate

Code snippet

using UnityEngine;
using System.Collections;

public class UpdateAndFixedUpdate : MonoBehaviour
{
    void FixedUpdate ()
    {
        Debug.Log("FixedUpdate time :" + Time.deltaTime);
    }
    
    
    void Update ()
    {
        Debug.Log("Update time :" + Time.deltaTime);
    }
}
#pragma strict

function FixedUpdate ()
{
    Debug.Log("FixedUpdate time :" + Time.deltaTime);
}


function Update ()
{
    Debug.Log("Update time :" + Time.deltaTime);
}
import UnityEngine
import System.Collections


public class UpdateAndFixedUpdate(MonoBehaviour):

    private def FixedUpdate():
        Debug.Log(('FixedUpdate time :' + Time.deltaTime))

    
    
    private def Update():
        Debug.Log(('Update time :' + Time.deltaTime))
Awake and Start
Vector Maths

Related documentation

Scripting

Beginner Gameplay Scripting

  1. Scripts as Behaviour Components
  2. Variables and Functions
  3. Conventions and Syntax
  4. C# vs JS syntax
  5. IF Statements
  6. Loops
  7. Scope and Access Modifiers
  8. Awake and Start
  9. Update and FixedUpdate
  10. Vector Maths
  11. Enabling and Disabling Components
  12. Activating GameObjects
  13. Translate and Rotate
  14. Look At
  15. Linear Interpolation
  16. Destroy
  17. GetButton and GetKey
  18. GetAxis
  19. OnMouseDown
  20. GetComponent
  21. Delta Time
  22. Data Types
  23. Classes
  24. Instantiate
  25. Arrays
  26. Invoke
  27. Enumerations
  28. Switch Statements

Intermediate Gameplay Scripting

  1. Properties
  2. Ternary Operator
  3. Statics
  4. Method Overloading
  5. Generics
  6. Inheritance
  7. Polymorphism
  8. Member Hiding
  9. Overriding
  10. Interfaces
  11. Extension Methods
  12. Namespaces
  13. Lists and Dictionaries
  14. Coroutines
  15. Quaternions
  16. Delegates
  17. Attributes
  18. Events

Editor Scripting

  1. Building a Custom Inspector
  2. The DrawDefaultInspector Function
  3. Adding Buttons to a Custom Inspector

Community Posts

  1. MonoDevelop's Debugger
  2. Good Coding Practices in Unity
  3. Unity Editor Extensions – Menu Items
  4. Creating Meshes

Project Architecture

  1. Mastering Unity Project Folder Structure - Version Control Systems

Live Sessions on Scripting

  1. Scripting Primer and Q&A
  2. Scripting Primer and Q&A - Continued
  3. Scripting Primer and Q&A - Continued (Again)
  4. Persistence - Saving and Loading Data
  5. Object Pooling
  6. Introduction to Scriptable Objects
  7. How to communicate between Scripts and GameObjects
  8. Coding in Unity for the Absolute Beginner
  9. Sound Effects & Scripting
  10. Editor Scripting Intro
  11. Writing Plugins
  12. Property Drawers & Custom Inspectors
  13. Events: Creating a simple messaging system
Got it

We use cookies to ensure that we give you the best experience on our website. Click here for more information.