sliding door openning (without animation) problem.

Paradoks · January 20, 2010, 10:08pm

Hi guys,

I got a door, wich is the child of an empty object with “is trigger” activated.

what I cant find is: how to make the door open when i (reach the empty object + i press a key) without using an animation ??

i guess its using “transform.Translate” but the problem is, i want to make a time to wait before the door close back, and a level to reach ( not too high) before it close back.

so far i got:

var speed : int = 200;


function OnTriggerStay () {

   if (Input.GetKeyUp("e") ) { 
   
      //animation.Play ();
	 transform.Translate(0, 0, speed * Time.deltaTime);
	  
   } 
    
}

thank you.

raiden · January 20, 2010, 11:13pm

Here’s some code I have for sliding a door up with a trigger object.

// simple lerp up and down movement
var targeti : Transform;
var moveSpeed : float = 5.0;
var upMaxDistance : float = 10.0;
var openCloseSound : AudioClip;
private var initPosition : Vector3;
private var openDoor : boolean = false;

function Start() {
	initPosition = targeti.transform.position;	
}

function Update () {
	if (!targeti) {
		return;	
	}
	if (openDoor == true) {
		targeti.position.y = Mathf.Min(upMaxDistance, targeti.position.y+moveSpeed * Time.deltaTime);
	}
	else {
		targeti.position.y = Mathf.Max(initPosition.y, targeti.position.y-moveSpeed * Time.deltaTime);	
	}
}

function OnTriggerEnter() {
	openDoor = true;	
	audio.PlayOneShot(openCloseSound);
}

function OnTriggerExit() {
	yield WaitForSeconds(2);
	openDoor = false;	
	audio.PlayOneShot(openCloseSound);
}

Pretty easy to use, 1st make a trigger object in front of the door, this would be the object you hit to open the door, 2nd on your trigger object, drag the door to the targeti slot. You also have audio clips you can drag in to play an audio sound.

Hope that helps you out.

-Raiden

Paradoks · January 21, 2010, 8:20pm

thx very much Raiden !

all the elements i needed are in your script !
its great !

thx again.

Paradoks · January 21, 2010, 9:56pm

BTW could you explain me please why is the “Mathf” ?
isnt it a simplier way to move the door ?
is there a way to just say " translate from here to here" ?

anyway it works very well, its just to understand.

thx

andeeeee · January 21, 2010, 10:16pm

The Mathf.Min and Mathf.Max calls are to make sure the door position stops at the exact right place at the end of the animation.

raiden · January 23, 2010, 3:34am

Well said andeeee, thank you Glad you liked the script PARADOKS.

-Raiden

eko1892 · April 8, 2011, 6:49pm

Thank you for this great script but I was wondering how to change its axis to make the door moves left/right instead of up. Because atm it only goes up and i have tried to change y axis to x from script but didn’t work… Any ideas guys? Thanks

eko1892 · April 11, 2011, 9:06am

Any ideas guys ?? Please help

Ga2Z · May 22, 2012, 10:49pm

the last post is old and I don’t mean to bring the thread to life just like that… but, I wanted to thank for the code and answer eko with this modifications from the code to make elevator doors

    // simple lerp up and down movement
    var targeti : Transform;
    var targetu : Transform;
    var moveSpeed : float = 0.7;
    var upMaxDistance : float = 0;
    var openCloseSound : AudioClip;
    private var initPositioni : Vector3;
    private var initPositionu : Vector3;
    private var openDoor : boolean = false;
     
    function Start() {
        initPositioni = targeti.transform.position;
        initPositionu = targetu.transform.position; 
    }
     
    function Update () {
        if (!targeti) {
            return; 
        }
        if (!targetu) {
            return; 
        }
        if (openDoor == true) {
            targeti.position.z = Mathf.Min(upMaxDistance, targeti.position.z+moveSpeed * Time.deltaTime);
            
            targetu.position.z = Mathf.Max(upMaxDistance, targetu.position.z-moveSpeed * Time.deltaTime);
        }
        else {
            targeti.position.z = Mathf.Max(initPositioni.z, targeti.position.z-moveSpeed * Time.deltaTime);
            
            targetu.position.z = Mathf.Min(initPositionu.z, targetu.position.z+moveSpeed * Time.deltaTime); 
        }
    }
     
    function OnTriggerEnter() {
        yield WaitForSeconds(1);
        openDoor = true;   
        audio.PlayOneShot(openCloseSound);
    }
     
    function OnTriggerExit() {
        yield WaitForSeconds(1);
        openDoor = false;   
        audio.PlayOneShot(openCloseSound);
    }

and THANKS!!

8l33d · October 1, 2013, 3:35pm

Hey Ga2z. I tried this but im missing something, somehow… First id like to be able to open the door pressing the E key, and also want to know how to make the door opens/closes if i press a button or level in the map… like for example your unlocking a security door with a computer or something like that… anyways Ill pareciate a lot if you help me with this. Thanks in advance

serenity81 · December 9, 2020, 6:44am

Hello Everyone,

Here is an updated code that will work with more recent versions on unity and has additional features:

Support for left/right sliding doors
Choice between movement along X or Z axis
Stop code from checking and adjusting position endlessly inside update when not needed

    public enum MoveAxis {
        xAxis,
        zAxis
    };
    public MoveAxis moveAxis;

    public Transform leftDoor;
    public Transform rightDoor;
    public float moveSpeed = 0.7f;
    public float maxDistance = 1.2f;
    public AudioSource Speaker;
    public AudioClip openCloseSound;

    // Simple lerp left & right movement
    private float initialPosLeftDoor;
    private float initialPosRightDoor;
    private float targetPosLeftDoor;
    private float targetPosRightDoor;
    private float newPosLeftDoor;
    private float newPosRightDoor;
    private float currentPosLeftDoor;
    private float currentPosRightDoor;
    private int openDoor = 2;

    void Start() {
        if (moveAxis.ToString() == "xAxis") {
            initialPosLeftDoor = leftDoor.position.x;
            initialPosRightDoor = rightDoor.position.x;
        } else {
            initialPosLeftDoor = leftDoor.position.z;
            initialPosRightDoor = rightDoor.position.z;
        }
    }

    void Update() {
        if (!leftDoor) {
            return;
        }

        //Get current door position
        if (openDoor == 0 || openDoor == 1) {
            if (moveAxis.ToString() == "xAxis") {
                currentPosLeftDoor = leftDoor.position.x;
                currentPosRightDoor = rightDoor.position.x;
            } else {
                currentPosLeftDoor = leftDoor.position.z;
                currentPosRightDoor = rightDoor.position.z;
            }
        }

        //Open door
        if (openDoor == 1) {
            targetPosLeftDoor = initialPosLeftDoor + maxDistance;
            targetPosRightDoor = initialPosRightDoor - maxDistance;

            if (currentPosLeftDoor == targetPosLeftDoor) {
                openDoor = 2; //Do nothing
            } else {
                newPosLeftDoor = Mathf.Min(targetPosLeftDoor, currentPosLeftDoor + moveSpeed * Time.deltaTime);
                leftDoor.position = new Vector3(leftDoor.position.x, leftDoor.position.y, newPosLeftDoor);

                newPosRightDoor = Mathf.Max(targetPosRightDoor, currentPosRightDoor - moveSpeed * Time.deltaTime);
                rightDoor.position = new Vector3(rightDoor.position.x, rightDoor.position.y, newPosRightDoor);
            }

        //Close door
        } else if (openDoor == 0) {
            targetPosLeftDoor = initialPosLeftDoor;
            targetPosRightDoor = initialPosRightDoor;

            if (currentPosLeftDoor == targetPosLeftDoor) {
                openDoor = 2; //Do nothing
            } else {
                newPosLeftDoor = Mathf.Max(targetPosLeftDoor, currentPosLeftDoor - moveSpeed * Time.deltaTime);
                leftDoor.position = new Vector3(leftDoor.position.x, leftDoor.position.y, newPosLeftDoor);

                newPosRightDoor = Mathf.Min(targetPosRightDoor, currentPosRightDoor + moveSpeed * Time.deltaTime);
                rightDoor.position = new Vector3(rightDoor.position.x, rightDoor.position.y, newPosRightDoor);
            }
        }
    }

    void OnTriggerEnter() {
        openDoor = 1;

        //Play Sound
        Speaker.clip = openCloseSound;
        Speaker.Play();
        Speaker.volume = 0.6f;

        Debug.Log("Open Door!");
    }

    void OnTriggerExit() {
        StartCoroutine(DelayClose(2f));
    }

    IEnumerator DelayClose(float time) {
        Debug.Log("Delay Move");
        yield return new WaitForSeconds(time);

        openDoor = 0;

        //Play Sound
        Speaker.clip = openCloseSound;
        Speaker.Play();
        Speaker.volume = 0.6f;

        Debug.Log("Close Door!");
    }

To use:

Create a cube to act as a trigger and place it mid way through the door
Deactivate mesh renderer component to make it transparent
Add a box collider and set it to isTrigger
Drag Script to cube trigger and fill fields in inspector
If you only have one sided door create a dummy side and make it transparent

OP3NGL · February 9, 2021, 3:05am

Hi there, i tried your code, but x-axis was moved on z-axis away from door frame, then when switched to z-axis moved in front of door frame? i used default cubes

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sliding door openning (without animation) problem.

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