Unity Script to give camera WASD + mouse control

FlyCamera.cs

using UnityEngine;
using System.Collections;
 
public class FlyCamera : MonoBehaviour {
 
    /*
    Writen by Windexglow 11-13-10.  Use it, edit it, steal it I don't care.  
    Converted to C# 27-02-13 - no credit wanted.
    Simple flycam I made, since I couldn't find any others made public.  
    Made simple to use (drag and drop, done) for regular keyboard layout  
    wasd : basic movement
    shift : Makes camera accelerate
    space : Moves camera on X and Z axis only.  So camera doesn't gain any height*/
     
     
    float mainSpeed = 100.0f; //regular speed
    float shiftAdd = 250.0f; //multiplied by how long shift is held.  Basically running
    float maxShift = 1000.0f; //Maximum speed when holdin gshift
    float camSens = 0.25f; //How sensitive it with mouse
    private Vector3 lastMouse = new Vector3(255, 255, 255); //kind of in the middle of the screen, rather than at the top (play)
    private float totalRun= 1.0f;
     
    void Update () {
        lastMouse = Input.mousePosition - lastMouse ;
        lastMouse = new Vector3(-lastMouse.y * camSens, lastMouse.x * camSens, 0 );
        lastMouse = new Vector3(transform.eulerAngles.x + lastMouse.x , transform.eulerAngles.y + lastMouse.y, 0);
        transform.eulerAngles = lastMouse;
        lastMouse =  Input.mousePosition;
        //Mouse  camera angle done.  
       
        //Keyboard commands
        float f = 0.0f;
        Vector3 p = GetBaseInput();
        if (p.sqrMagnitude > 0){ // only move while a direction key is pressed
          if (Input.GetKey (KeyCode.LeftShift)){
              totalRun += Time.deltaTime;
              p  = p * totalRun * shiftAdd;
              p.x = Mathf.Clamp(p.x, -maxShift, maxShift);
              p.y = Mathf.Clamp(p.y, -maxShift, maxShift);
              p.z = Mathf.Clamp(p.z, -maxShift, maxShift);
          } else {
              totalRun = Mathf.Clamp(totalRun * 0.5f, 1f, 1000f);
              p = p * mainSpeed;
          }
         
          p = p * Time.deltaTime;
          Vector3 newPosition = transform.position;
          if (Input.GetKey(KeyCode.Space)){ //If player wants to move on X and Z axis only
              transform.Translate(p);
              newPosition.x = transform.position.x;
              newPosition.z = transform.position.z;
              transform.position = newPosition;
          } else {
              transform.Translate(p);
          }
        }
    }
     
    private Vector3 GetBaseInput() { //returns the basic values, if it's 0 than it's not active.
        Vector3 p_Velocity = new Vector3();
        if (Input.GetKey (KeyCode.W)){
            p_Velocity += new Vector3(0, 0 , 1);
        }
        if (Input.GetKey (KeyCode.S)){
            p_Velocity += new Vector3(0, 0, -1);
        }
        if (Input.GetKey (KeyCode.A)){
            p_Velocity += new Vector3(-1, 0, 0);
        }
        if (Input.GetKey (KeyCode.D)){
            p_Velocity += new Vector3(1, 0, 0);
        }
        return p_Velocity;
    }
}

Updated it with the following:

• increase/decrease speed with the scrollwheel
• rotating with right mouse button => locks & disables mouse cursor

`
public class SimpleCameraController : MonoBehaviour
{

    public float mainSpeed = 1.0f; //regular speed
    public float shiftAdd = 250.0f; //multiplied by how long shift is held.  Basically running
    public float maxShift = 1000.0f; //Maximum speed when holdin gshift
    public float camSens = 0.25f; //How sensitive it with mouse
    public bool invertY = true;

    public float scrollWheelSens = 1f;

    private Vector3 lastMouse = new Vector3(255, 255, 255); //kind of in the middle of the screen, rather than at the top (play)
    private float totalRun = 1.0f;

    void Update()
    {
        if (Input.GetMouseButton(1))
        {
            var mouseMoveY = invertY ? -1 * Input.GetAxis("Mouse Y") : Input.GetAxis("Mouse Y");
            var mouseMoveX = Input.GetAxis("Mouse X");

            var mouseMove = new Vector3(mouseMoveY, mouseMoveX, 0) * camSens;
            transform.eulerAngles = transform.eulerAngles + mouseMove;
        }

        if (Input.GetMouseButtonDown(1))
        {
            Cursor.visible = false;
            Cursor.lockState = CursorLockMode.Locked;
        }

        if (Input.GetMouseButtonUp(1))
        {
            Cursor.visible = true;
            Cursor.lockState = CursorLockMode.None;
        }

        //Mouse  camera angle done.  

        //Keyboard commands
        float f = 0.0f;
        Vector3 p = GetBaseInput();
        if (p.sqrMagnitude > 0)
        { // only move while a direction key is pressed
            if (Input.GetKey(KeyCode.LeftShift))
            {
                totalRun += Time.deltaTime;
                p = p * totalRun * shiftAdd;
                p.x = Mathf.Clamp(p.x, -maxShift, maxShift);
                p.y = Mathf.Clamp(p.y, -maxShift, maxShift);
                p.z = Mathf.Clamp(p.z, -maxShift, maxShift);
            }
            else
            {
                totalRun = Mathf.Clamp(totalRun * 0.5f, 1f, 1000f);
                p = p * mainSpeed;
            }

            p = p * Time.deltaTime;
            Vector3 newPosition = transform.position;
            if (Input.GetKey(KeyCode.Space))
            { //If player wants to move on X and Z axis only
                transform.Translate(p);
                newPosition.x = transform.position.x;
                newPosition.z = transform.position.z;
                transform.position = newPosition;
            }
            else
            {
                transform.Translate(p);
            }
        }

        var scroll = Input.GetAxis("Mouse ScrollWheel");
        mainSpeed += scroll * scrollWheelSens;
    }

    private Vector3 GetBaseInput()
    { //returns the basic values, if it's 0 than it's not active.
        Vector3 p_Velocity = new Vector3();
        if (Input.GetKey(KeyCode.W))
        {
            p_Velocity += new Vector3(0, 0, 1);
        }
        if (Input.GetKey(KeyCode.S))
        {
            p_Velocity += new Vector3(0, 0, -1);
        }
        if (Input.GetKey(KeyCode.A))
        {
            p_Velocity += new Vector3(-1, 0, 0);
        }
        if (Input.GetKey(KeyCode.D))
        {
            p_Velocity += new Vector3(1, 0, 0);
        }
        return p_Velocity;
    }`

Thank you! Great contribution

This works great.

Thanks dude!

just what i needed ,thx

Is there anyway I can get the player to move the way the camera is facing? I am making a first person game.

@JDRBL007 You should be able to attach this script and camera to your player. Then when the script updates the transform, that will adjust the player

Thank's for sharing. Saved me a lot of work.
I made a modification that makes it posible to deactivate the flycamera by hitting esc, and activate it again by hitting F1. I think it's usefull if you want's to modify something in the scene while keeping the cameraposition fixed.

I'm sure there's a better way to implement this but it works.

void Update()
{
if (Input.GetKey(KeyCode.Escape))
{
activeFlyCamera = false;
savedCameraPosition = Camera.main.transform.eulerAngles;
savedCameraRotation = Camera.main.transform.rotation;
}

    if (Input.GetKey(KeyCode.F1))
    {
        activeFlyCamera = true;
        Camera.main.transform.eulerAngles = savedCameraPosition;
        Camera.main.transform.rotation = savedCameraRotation;
    }
        

    if (activeFlyCamera)
    {

Is there a way to make this script work with Rigid body? Or is there any other way to make the object collide with the camera and not just let it fly through?

Just needed a quick script for testing in play mode so I didn't have to rely on fixed camera positions and this works great for that. Thank you very much.

You're welcome! That's exactly why it's here :)

…

On Sun, Jul 2, 2023 at 2:40 AM Dainsure ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Just needed a quick script for testing in play mode so I didn't have to rely on fixed camera positions and this works great for that. Thank you very much. — Reply to this email directly, view it on GitHub <https://gist.github.com/gunderson/d7f096bd07874f31671306318019d996#gistcomment-4616521> or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAP776WSA3CBRUNHA7AH4KTXOE6W7BFKMF2HI4TJMJ2XIZLTSKBKK5TBNR2WLJDHNFZXJJDOMFWWLK3UNBZGKYLEL52HS4DFQKSXMYLMOVS2I5DSOVS2I3TBNVS3W5DIOJSWCZC7OBQXE5DJMNUXAYLOORPWCY3UNF3GS5DZVRZXKYTKMVRXIX3UPFYGLK2HNFZXIQ3PNVWWK3TUUZ2G64DJMNZZDAVEOR4XAZNEM5UXG5FFOZQWY5LFVA2DGMJXGU2TCMFHORZGSZ3HMVZKMY3SMVQXIZI> . You are receiving this email because you authored the thread. Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub> .

It's really close to what I was looking for. With some adjustments, it does what I need it for. Very neat!

i dont know if i am the only one but it simply doesnt work. i cheked unity official tutorials and copied the code they wrote, but didnt work. please someone help me. PS: using 2020.2.6f1

Did you name the file FlyCamera.cs?
You need to replace FlyCamera if you use another name.