Rotation Code Help

Question

Whats wrong with this code? Its supposed to make the object rotate to (31, 0, 0) when left shift is pressed and then when left shift is released it makes it go back to (0, 0, 0) rotation. Can someone help?

This isnt a question on the sprint script, its a question on the rotation. The rotation goes crazy when you press left shift.

 function Update(){
  if(Input.GetButtonDown("Sprint") && isSprinting == false && canRun == true){
  
  obj1.GetComponent(CharacterMotor).movement.maxForwardSpeed = 8;
  
  lightObj.transform.eulerAngles = Vector3(31, lightObj.transform.eulerAngles.y, lightObj.transform.eulerAngles.x);
  
  isSprinting = true;
  
  StopSprinting();
 
 }
 
 function StopSprinting(){
 
  yield WaitForSeconds (8);
 
  if(isSprinting == true){
  
  isSprinting = false;
  
  lightObj.transform.eulerAngles = Vector3(0, lightObj.transform.eulerAngles.y, lightObj.transform.eulerAngles.x);
  
  audio.PlayOneShot(breathSound);
  
  audio.volume = 1;
  
  obj1.GetComponent(CharacterMotor).movement.maxForwardSpeed = 6;
  
  canRun = false;
  
  yield WaitForSeconds (10);
  
  if(canRun == false){
  
  canRun = true;
  
  }
  }
 }

Please help!

Answer 1

Answer by aldonaletto · Aug 02, 2012 at 02:09 AM

You're swapping X and Z angles each time you rotate to 31 or return to 0:

  // the last eulerAngles component should be Z, not X:
  lightObj.transform.eulerAngles = Vector3(31, lightObj.transform.eulerAngles.y, lightObj.transform.eulerAngles.x);
  ...
  // the same applies to this line:
  lightObj.transform.eulerAngles = Vector3(0, lightObj.transform.eulerAngles.y, lightObj.transform.eulerAngles.x);

Change the last component to lightObj.transform.eulerAngles.z

EDITED: If you want to rotate smoothly to the new orientation, have a variable (lightAngle) to define the desired angle and follow it at Update with Lerp:

// declare these variables in your script: var lightVel: float = 5; // speed to rotate the lightObj private var curAngle: Vector3; // current lightObj local angle private var lightAngle: Vector3; // desired lightObj local angle

function Start(){ // initialize the new variables at Start: lightAngle = lightObj.localEulerAngles; curAngle = lightAngle; // other previous Start code }

function Update(){ if(Input.GetButtonDown("Sprint") && isSprinting == false && canRun == true){ obj1.GetComponent(CharacterMotor).movement.maxForwardSpeed = 8; lightAngle.x = 31; // set the desired angle isSprinting = true; StopSprinting(); } // this code goes smoothly to the desired angle: curAngle = Vector3.Lerp(curAngle, lightAngle, lightVel * Time.deltaTime); lightObj.localEulerAngles = curAngle; // other previous Update code }

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DNP · Aug 02, 2012 at 02:37 AM 0

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it still doesnt seem to work. im getting values like "6.54845e-05"

Eric5h5 · Aug 02, 2012 at 02:56 AM 0

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6.54845e-05 is close to 0, and what you can expect with eulerAngles, given floating point precision issues.

aldonaletto · Aug 02, 2012 at 03:10 AM 0

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As @Eric5h5 said, if the angles Y and Z are always zero you could just assign the desired angles to the object rotation:

  lightObj.transform.eulerAngles = Vector3(31,0,0); 
  ...
  lightObj.transform.eulerAngles = Vector3(0,0,0);
  ...

DNP · Aug 02, 2012 at 04:17 AM 0

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Yeah but when i activate the rotation, it rotates to the right with that code. the light just really glitches up.

aldonaletto · Aug 02, 2012 at 01:24 PM 0

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The code you've posted (with the suggested corrections) should rotate down the lightObj 31 degrees instantly, wait 8 seconds and rotate it back instantly to 0 degrees, unless the original Update function does something else that nulls this behaviour - it seems you've not posted the complete Update function, because its closing bracket is missing.

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Answer 2

Answer by MKlegoman357 · Aug 02, 2012 at 11:10 PM

Try to use this:

lightObj.transform.localRotation.x = 31;

lightObj.transform.localRotation.x = 0;

or

lightObj.transform.localRotation = Quaternion.Euler(31, lightObj.transform.localRotation.y, lightObj.transform.localRotation.z);

lightObj.transform.localRotation = Quaternion.Euler(0, lightObj.transform.localRotation.y, lightObj.transform.localRotation.z);

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DNP · Aug 02, 2012 at 11:47 PM 0

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I seem to have figured this out myself. I could just use

lightObj.transform.Rotate(31,0,0);

lightObj.transform.Rotate(-31,0,0);

But now im trying to make this a smooth rotation, so could you please go to my post and help as much as you can on that topic? because im nearly ripping my hear out because of smooth rotation.

Answer 3

This should work:

var xRotation : float;

var defaultRotation : Quaternion;

var xRotationV : float;

var xRotationTime : float = 1;

function Start () {

defaultRotation = transform.localRotation;

xRotation = defaultRotation.x;

}

function Update() { lightObj.transform.rotation = Quaternion.Euler(Mathf.SmoothDamp(transform.localRotation.x, xRotation, xRotationV, xRotationTime), defaultRotation.y, defaultRotation.z);

if(Input.GetButtonDown("Sprint") && isSprinting == false && canRun == true){

obj1.GetComponent(CharacterMotor).movement.maxForwardSpeed = 8;

isSprinting = true;

xRotation = 31;

StopSprinting();

} }

function StopSprinting() {

yield WaitForSeconds (8);

if(isSprinting == true){

isSprinting = false;

xRotation = 0;

audio.PlayOneShot(breathSound);

audio.volume = 1;

obj1.GetComponent(CharacterMotor).movement.maxForwardSpeed = 6;

canRun = false;

yield WaitForSeconds (10);

if(canRun == false){

canRun = true;

} } }

If its not then try defaultRotation declair by your self in the inspector.

Rotation Code Help

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