Clamp Rotation Problem

Hey guys, after a long time searching about a way to Clamp the rotation, I finally found out something. Everything's working Ok, except for one thing. The cannon I'm using for a game need to rotate along eulerAngles.x axis. The Start X rotation is 270, but even if I move it up or down, the rotation increase it value.

For exemple, when I move mouse up, the rotation increase from 270 to 345(value I want to clamp). And when I move mouse down, the rotation increase the same value, from 270, to 345.

What I want is that when I move mouse up, the rotation increase and when I move mouse down, the rotation decrease, so that way my Clamp should work correctly. Here's the code:

---

var angles: Vector3 = Vector3.zero;

var rotationVelocity: float;

function Start() {

angles.y = transform.eulerAngles.y;

angles.x = transform.eulerAngles.x;

angles.z = transform.eulerAngles.z;

}

function Update() {

print(transform.eulerAngles.x); // that's how I found out the problem

if(Input.GetAxis("Mouse Y") > 0) {

angles.x += rotationVelocity * Time.deltaTime;

angles.x = Mathf.Clamp(angles.x, 270, 345);

transform.eulerAngles.x = angles.x;

}

if(Input.GetAxis("Mouse Y") < 0) {

angles.x -= rotationVelocity * Time.deltaTime;

angles.x = Mathf.Clamp(angles.x, 270, 345);

transform.eulerAngles.x = angles.x;

}

}

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Sorry about my English, I'm brazilian. Thanks from now!

 function Update() {

 var input = Input.GetAxisRaw("$$anonymous$$ouse Y");
     //returns -1 , 0 , or 1 based on movement.

 if(input != 0) {
     //We really only need to do the rest if we actually moved some.
     angles.x += rotationVelocity * Time.deltaTime * input;

     angles.x = $$anonymous$$athf.Clamp(angles.x, 270, 345);

     transform.eulerAngles.x = angles.x;

 }
 }