koobas.hobune.stream
Setting Z transform value of current object in C#
So I'm working a 3rd person camera control script for zooming in an out with the mouse wheel and I'm having trouble setting limits to the zoom. The zoom works just fine. I tried placing the translate lines inside an if statement that used limits as conditions, but that would cause the zoom to actually overshoot and become stuck.
How can I set the Z transform only. I want to evaluate the current transform and if its outside the limits I set, it gets set to the limit.
void Update () {
scrollWheel = Input.GetAxis("Mouse ScrollWheel");
transform.Translate(Vector3.forward * scrollWheel * cameraZoomSensitivity);
if(transform.localPosition.z >= cameraMinimumDistance)/*what goes here???*/;
if(transform.localPosition.z <= cameraMaximumDistance)/*what goes here???*/;
}
Sorry for the newb question.
In C#, you cannot assign individual components. So you code might be:
void Update () {
scrollWheel = Input.GetAxis("Mouse ScrollWheel");
transform.Translate(Vector3.forward * scrollWheel * cameraZoomSensitivity);
Vector3 pos = transform.position;
pos.z = Mathf.Clamp(pos.z, cameraMinimumDistance, cameraMaximumDistance);
transform.position = pos;
}
Note I've used 'transform.position' rather than 'transform.localPosition'. There may be a valid reason to use transform.localPosition instead, but it is not spelled out in the question.
Thank you so much for pointing me in the right direction! Your example got me most of the way there. It placed the limits on the z transform, but my y transform would change once the z limit was hit. I added one line to fix this:
void Update () {
scrollWheel = Input.GetAxis("Mouse ScrollWheel");
transform.Translate(Vector3.forward * scrollWheel * cameraZoomSensitivity);
cam = transform.localPosition;
cam.z = Mathf.Clamp(cam.z, cameraMinimumDistance, cameraMaximumDistance);
cam.y = Mathf.Clamp(cam.y, 0.0f, 0.0f);
transform.localPosition = cam;
}
Thanks again.
Since you are clamping 'y' to zero, you can just assign it 0.0 and avoid the function call:
cam.y = 0.0f;
