What is wrong with this script?

Question

i keep getting this error with this script. "NullReferenceException: Object reference not set to an instance of an object" This is supposed to be in javascript... in case i did something wrong, language-wise.

its something with the "if(lightObject.transform.Rotation.x > 31){" but i dont know what im doing wrong.

Please help!

Heres the code:

 var lightObject : GameObject;
 var breathingObj : GameObject;
 var hasSprinted : boolean = false;
 
 function Update () {
 
 if(breathingObj.GetComponent(SprintScript).isSprinting == true){
 
  lightObject.transform.Rotate(Time.deltaTime * 50, 0, 0);
  
  hasSprinted = true;
 
  if(lightObject.transform.Rotation.x > 31){
  
  lightObject.transform.Rotation.x = 31;
  
  hasSprinted = true;
  
  }
  }
  
 else if(breathingObj.GetComponent(SprintScript).isSprinting == false && hasSprinted == true){
 
  lightObject.transform.Rotate(Time.deltaTime * -50, 0, 0);
  
  if(lightObject.transform.Rotation.x > 0){
  
  lightObject.transform.Rotation.x = 0;
  }
  }
 }

Answer 1

Best Answer

Answer by Eric5h5 · Aug 05, 2012 at 12:56 AM

There's no such thing as transform.Rotation. Capitalization is very important. Also, that won't work even when corrected, since transform.rotation is a quaternion, which is a 4-dimensional representation of an object's rotation, so rotation.x doesn't correspond to the x axis and is not in degrees anyway. Since reading one component from eulerAngles tends to be unreliable (since there's more than one valid way to represent an object's rotation), you're better off tracking the rotation yourself in a separate variable.

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DNP · Aug 05, 2012 at 12:59 AM 0

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What would the variable represent?? would it be lightObject.localRotation?

Eric5h5 · Aug 05, 2012 at 01:03 AM 1

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No, localRotation is also a quaternion. The variable would represent the rotation in degrees; see the $$anonymous$$ouseLook script in the character controller standard package for an example of a script that uses its own variables to track rotation of specific axes ins$$anonymous$$d of trying to read it from the object (which is fairly problematic).

DNP · Aug 05, 2012 at 01:15 AM 0

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Alright. I see what you mean. But could you post an example? or if your bored perhaps a fix? becuase it will help me understand what you mean. Also, in the mouse look script, im guessing you mean these variables.

public enum RotationAxes { $$anonymous$$ouseXAndY = 0, $$anonymous$$ouseX = 1, $$anonymous$$ouseY = 2 } public RotationAxes axes = RotationAxes.$$anonymous$$ouseXAndY; public float sensitivityX = 15F; public float sensitivityY = 15F;

public float minimumX = -360F; public float maximumX = 360F;

public float minimumY = -60F; public float maximumY = 60F;

float rotationY = 0F;

Eric5h5 · Aug 05, 2012 at 01:27 AM 0

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I'm referring to the rotationY variable.

DNP · Aug 05, 2012 at 03:12 AM 0

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Why does it have an "F" next to the value???

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Answer 2

Answer by slayer29179 · Aug 05, 2012 at 12:41 AM

Sure :) Try These;

 if(lightObject.transform.Rotation.x > 31){
 
 if(lightObject.transform.rotation.x > 31){
 
 if(lightObject.transform.Rotate.x > 31){
 
 if(lightObject.transform.rotate.x > 31){
 
 if(lightObject.transform.Vector3.right > 31){

and see if they work :)

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DNP · Aug 05, 2012 at 12:48 AM 0

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The second one works! thank you!

slayer29179 · Aug 05, 2012 at 12:52 AM 0

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Woohoo ^^ my first accepted answer :D thank you ! :D

DNP · Aug 05, 2012 at 12:53 AM 0

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no problem :3

Eric5h5 · Aug 05, 2012 at 12:57 AM 0

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Actually none of those is correct, sorry...see my answer for an explanation.

What is wrong with this script?

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