Rotate and eulerAngles don't work together ??

Question

Hi ! I've encountered an error when changing rotation into Rotate in front of euler angles

 var Statue : GameObject;
 
 var MinClamp1 = 0f;
 var MaxClamp1 = 90f;
 var MinClamp2 = 90f;
 var MaxClamp2 = 180f;
 var MinClamp3 = 180f;
 var MaxClamp3 = 270f;
 var MinClamp4 = 270f;
 var MaxClamp4 = 360f;
 var RotationLimit = 0;
 function Update () {
 if (Statue.transform.rotation.y > 360){
 Statue.transform.rotation.y = 0;
 }
 if (RotationLimit == 4){
 RotationLimit = 0;
 }
 }
 
 
 function OnTriggerStay(other : Collider){
 if (other.gameObject.tag == "Boite" && RotationLimit == 0){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp1, MaxClamp1),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 1){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp2, MaxClamp2),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 2){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp3, MaxClamp3),
           Statue.transform.rotation.eulerAngles.z);
           }
           if (other.gameObject.tag == "Boite" && RotationLimit == 3){
   Statue.transform.rotation.eulerAngles =  new Vector3(Statue.transform.rotation.eulerAngles.x,Mathf.Clamp(Statue.transform.rotation.eulerAngles.y, MinClamp4, MaxClamp4),
           Statue.transform.rotation.eulerAngles.z);
           }
 }
 function OnTriggerExit(other : Collider){
 ++RotationLimit;
 }

it works , but I'd like to make it rotate slowly like using Rotate instead of rotation , how should I do ?

Answer 1

Best Answer

Answer by aldonaletto · Jul 29, 2011 at 01:35 PM

I had no time to test this, but I think it does exactly what you're trying to do - replace your script with this one and tell me if you have any problem:

var Statue : GameObject; private var rotating = false;

function OnTriggerEnter(other : Collider){ if (other.gameObject.tag == "Boite"){ RotateY(Statue.transform, 90, 1.1); // rotate gradually 90 around Y } }

function RotateY(transf: Transform, angle: float, time: float){ if (rotating) return; // ignore other calls while rotating rotating = true; // flag to indicate "I'm rotating already" var t: float = 0; var euler = transf.eulerAngles; var init = euler.y; var end = init + angle; while (t < 1){ // t will vary from 0 to 1 in time seconds t += Time.deltaTime / time;
euler.y = Mathf.Lerp(init, end, t); // define Y angle proportional to t transf.eulerAngles = euler; yield; // return here in the next frame } rotating = false; // finished rotating }

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Anykey · Jul 29, 2011 at 03:04 PM 0

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Thank you so much aldonaletto , it couldn't work better ! If you need 3D Modeling help , tell me here : DanaoPolice(at)hotmail.fr , I would be glad to help you in return with what I know doing ;)

aldonaletto · Jul 29, 2011 at 05:05 PM 0

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Thanks for your offer - be sure I'll cry for help if I need!

Answer 2

Answer by almo · Jul 27, 2011 at 07:52 PM

Use this.

http://unity3d.com/support/documentation/ScriptReference/Vector3.RotateTowards.html

Or if you're into quaternions, you can use

http://unity3d.com/support/documentation/ScriptReference/Quaternion.RotateTowards.html

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Anykey · Jul 27, 2011 at 08:33 PM 0

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Thanks for replying

var speedmin : float = 2; var speedmax : float = 4;

var from = new Vector3(0,0,0); var to = new Vector3(0,90,0);

Statue.transform.position = new Vector3.RotateTowards(from, to, speedmin, speedmax);

it still doesn't work though, I've got this error message: Assets/MesAssets/MesScripts/TriggerStatueRotation.js(32,41): BCE0017: The best overload for the method 'UnityEngine.Vector3.RotateTowards(UnityEngine.Vector3, UnityEngine.Vector3, float, float)' is not compatible with the argument list '(UnityEngine.Transform, UnityEngine.Transform, float, float)'.

almo · Jul 27, 2011 at 08:40 PM 0

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Read the error. It says you are trying to feed Transforms into a function expecting Vector3s.

The way RotateTowards works is you feed it two vectors: one that is where the object is pointing, and another which is where you want it to point. The result is a vector that has moved partway toward pointing the way you want it to when it's done.

Anykey · Jul 27, 2011 at 09:17 PM 0

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No more error , but the Statue GameObject is rotating to 3.9999 , not to 180 private var startPosition : Vector3;

var from : Vector3;

var to : Vector3;

var speedmin : float = 50;

var speedmax : float = 180;

function Start (){

 startPosition = transform.eulerAngles ;

}

from = startPosition;

to = Vector3(0,180,0);

Statue.transform.eulerAngles = Vector3.RotateTowards(from, to, speedmin, speedmax);

almo · Jul 27, 2011 at 09:19 PM 0

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You don't use RotateTowards with EulerAngles. Reread my comment. It takes a vector, and returns a vector that has been rotated to be closer to pointing toward the second vector.

Anykey · Jul 27, 2011 at 09:36 PM 0

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I'll try on tommorow ,

Statue.transform.eulerAngles = Vector3.RotateTowards(from, to, speedmin, speedmax);

I've tried rotation , localRotation , Rotate instead of eulerAngles , but nothing work because they are all quaternions , I really don't know what to use

Rotate and eulerAngles don't work together ??

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