koobas.hobune.stream
Mouse wheel zoom
how can i change a variable smoothly with the mouse wheel (maybe using mathf.Lerp or some kind of interpolation)
I need to change the distance var.
Code:
var target : Transform;
var distance = 10.0;
var xSpeed = 250.0;
var ySpeed = 120.0;
var yMinLimit = -20;
var yMaxLimit = 80;
private var x = 0.0;
private var y = 0.0;
@script AddComponentMenu("Camera-Control/Mouse Orbit 2")
function Start () {
var angles = transform.eulerAngles;
x = angles.y;
y = angles.x;
// Make the rigid body not change rotation
if (rigidbody)
rigidbody.freezeRotation = true;
}
function LateUpdate () {
if (target && Input.GetKey(KeyCode.Mouse1)) {
x += Input.GetAxis("Mouse X") * xSpeed * 0.02;
y -= Input.GetAxis("Mouse Y") * ySpeed * 0.02;
y = ClampAngle(y, yMinLimit, yMaxLimit);
}
var rotation = Quaternion.Euler(y, x, 0);
var position = rotation * Vector3(0.0, 0.0, -distance) + target.position;
transform.rotation = rotation;
transform.position = position;
}
static function ClampAngle (angle : float, min : float, max : float) {
if (angle < -360)
angle += 360;
if (angle > 360)
angle -= 360;
return Mathf.Clamp (angle, min, max);
}
It's hard to find the correct syntax for scrollwheel. It's not in Input or GetAxis :
Input.GetAxis("Mouse ScrollWheel")
add this to your code :
var distanceMin : float = 3.0;
var distanceMax : float = 10.0;
var zoomSpeed : float = 2.0;
// in function
distance = Mathf.Clamp( distance + Input.GetAxis("Mouse ScrollWheel") * zoomSpeed, distanceMin, distanceMax );
Which function?
EDIT: whenever i try to use this, it jumps back to the starting point
The code goes in LateUpdate(). Note this will produce an immediate change. A bit more work would be necessary to get a smooth change in distance.
The last line should be:
distance = $$anonymous$$athf.Clamp( distance + Input.GetAxis("$$anonymous$$ouse ScrollWheel") * zoomSpeed, distance$$anonymous$$in, distance$$anonymous$$ax );
Oops, forgot the add the current distance, thanks robertbu
