Problem with Clamping Values for Object's Rotation

Question

I'm having trouble clamping the barrel's degrees plus its parent's(the tank's hull) degrees as well so I can get the same result like it does right of the picture below.

So the script is simple it rotates the barrel(turretBarrel) with the Y_Mouse Input and rotates the upperPart(turret) of the tank with the X_Mouse Input, along with barrel stabilization. Script

    //Note t$$anonymous$$s.transform is the tanks hull
   public Transform turret;
   public Transform turretBarrel;
   float xRot;
   float angleY;
   float rotY;
   float minTurretRotY;
   float maxTurretRotY;
   Vector3 mRot;
   Vector3 rot;


   public void Update(){
             xRot = Input.GetAxis("Mouse X") * 0.5f;
             turret.transform.localRotation *= Quaternion.Euler(turret.transform.localRotation.x, xRot, turret.transform.localRotation.z);
 
             angleY -= Input.GetAxisRaw("Mouse Y") * 0.5f;
             angleY = Mathf.Clamp(angleY, minTurretRotY, maxTurretRotY);
             
             mRot = turret.transform.rotation.eulerAngles;
             rot = turretBarrel.transform.rotation.eulerAngles;
             rotY = angleY;
             rotY = Mathf.Clamp(rotY, minTurretRotY, maxTurretRotY);

             // I'm using Quaternion.Euler for barrel Stabilization
             turretBarrel.transform.rotation = Quaternion.Euler(new Vector3(rotY, mRot.y, mRot.z));
             //Debug.Log(rotY +"  |  " + angleY + "/ Min : " + minTurretRotY+ " ;  Max : " + (maxTurretRotY));
 }

alt text

Answer 1

Answer by AaronXRDev · Nov 11, 2018 at 12:11 AM

In a case like t$$anonymous$$s you should look at using localEulerAngles instead of rotation. localRotation and localEulerAngles both apply to the object as it exists in relation to the parent object. The standard rotation relates to the world, and can have odd results.

Try using turretBarrel.transform.localEulerAngles

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rodneyjo77 · Nov 11, 2018 at 12:30 AM 0

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@EgoAnt It kind of works but it does not rotate the turret(UpperPart) of the tank just the barrel.

rodneyjo77 · Nov 11, 2018 at 12:38 AM 0

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I manage to make it work with "turretBarrel.transform.localEulerAngles = new Vector3(rotY, this.transform.rotation.y, this.transform.rotation.z);" How ever now the stabilization no longer works for the barrel, which is important considering thats what actual tanks have.

rodneyjo77 · Nov 11, 2018 at 12:48 AM 0

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more or less when the hull rotates positive on the x axis and then the barrel rotates down on the x axis so it is stable which I have been having trouble with and way to do it was with "turretBarrel.transform.rotation = Quaternion.Euler(new Vector3(rotY, mRot.y, mRot.z));" because it used world space rotation. Would you know how to do this?

AaronXRDev rodneyjo77 · Nov 11, 2018 at 12:56 AM 0

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Can you send a picture that shows the structure of the GameObjects in the hierarchy window?

rodneyjo77 AaronXRDev · Nov 11, 2018 at 01:05 AM 0

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Sure, here you go @EgoAnt. alt text

example123123.png (2.8 kB)

Problem with Clamping Values for Object's Rotation

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