koobas.hobune.stream
Limit character head rotation
Hello. I have a character who look at the point where the cursor is. Now he rotate a head 360 degrees in all axes. And i wont to limit X,Y rotation. I dont know how to do that.
public class HeadLook : MonoBehaviour { public LayerMask layerIgnore; public Camera cam; public GameObject head; public Vector3 limit; private RaycastHit hit;
private void LateUpdate()
{
followCursor();
}
private void followCursor()
{
Vector3 cursorPosition = Input.mousePosition;
Ray ray = cam.ScreenPointToRay(cursorPosition);
if (Physics.Raycast(ray, out hit, 500f, ~layerIgnore))
{
head.transform.LookAt(hit.point);
}
}
}
This is a different approach that might work for you. Move an empty gameobject to the mouse position and add constraints to that movement, and then just add a transform.LookAt to your head to look at that point.
The script for the point is this:
using UnityEngine;
public class PointToLookAt : MonoBehaviour
{
public float posMultiplier = 3f;
public float pointDepth = 0.2f;
public bool lockX;
public bool lockY;
public Camera cam;
void Update()
{
Vector3 mousePos = Input.mousePosition * posMultiplier;
mousePos.z = pointDepth;
Vector3 target = cam.ScreenToWorldPoint(mousePos);
if (lockX)
{
target.x = 0;
}
if (lockY)
{
target.y = 0;
}
transform.position = target;
}
}
Simple LookAt for the head:
using UnityEngine;
public class LookAtTarget : MonoBehaviour
{
public Transform target;
void Update()
{
transform.LookAt(target.position);
}
}
And in the Inspector it will look like this for the point: 
And like this for the simple LookAt on the head: 
Here is yet another method:
float x;
float y;
private void Update()
{
x -= Input.GetAxisRaw("Mouse Y") * moveSensitivity * Time.deltaTime;
y += Input.GetAxisRaw("Mouse X") * moveSensitivity * Time.deltaTime;
x = Mathf.Clamp(x, -90, 90);
transform.rotation = Quaternion.Euler(x, y, 0);
}
}
This method cant help me because i dont use $$anonymous$$ouseX and $$anonymous$$ouseY to rotation GameObject. but thanks for answer ;)
https://www.youtube.com/watch?v=_QajrabyTJc&t=598s
In this tutorial you will find all you need :)
I dont know how to convert this to my look at hit.point position because he use mouseX and mouseY.
Thanks @Fkat and @tadadosi I don't know if these solutions would help in my case because now I was able to solve the problem. This https://answers.unity.com/questions/1153173/turret-rotation-based-on-its-own-local-rotation.html help me so much.
my code now:
using UnityEngine;
public class HeadLook : MonoBehaviour
{
public LayerMask layerIgnore;
public Camera cam;
public GameObject head;
public Vector3 limit;
public float smooth;
private Vector3 target;
private RaycastHit hit;
private Vector3 normal;
private void LateUpdate()
{
followCursor();
}
private void followCursor()
{
Vector3 cursorPosition = Input.mousePosition;
Ray ray = cam.ScreenPointToRay(cursorPosition);
normal = transform.forward;
if (Physics.Raycast(ray, out hit, 100f, ~layerIgnore))
{
Vector3 desiredPosition = new Vector3(hit.point.x, hit.point.y, hit.point.z);
Vector3 smoothedPosition = Vector3.Lerp(target, desiredPosition, smooth);
target = smoothedPosition;
Vector3 direction = target - head.transform.position;
Debug.DrawRay(head.transform.position, direction, Color.blue);
float angle = Vector3.Angle(normal, direction.normalized);
Vector3 axis = Vector3.Cross(normal, direction.normalized);
Vector3 targetDir = Quaternion.AngleAxis(Mathf.Clamp(angle, -limit.x, limit.x), axis) * normal;
Debug.DrawRay(transform.position, targetDir, Color.red);
Quaternion targetRotation = Quaternion.LookRotation(targetDir);
head.transform.rotation = Quaternion.Slerp(head.transform.localRotation, targetRotation, 1);
}
}
