Question by Ziemelis · May 26, 2021 at 02:09 PM · rotation rigidbody 3d player direction

How to make a player rotate in a direction with a slope of the ground.

Hi, I'm making my first game, but I don't know how to make a player rotate on the same slope as the ground. Sample-(I use rigid body) alt text

I think it can be done with the help of "freeze Rotation", so I got it, but a new problem arose - if I approach the edge of the slope, then the player falls and turns in an unfamiliar direction - either sideways, upside down or backwards . This is not a bad thing until you start moving with the WSAD, because if a player has turned in any other direction, if I press W, then he goes to where the falling has turned-

alt text

The code I use-

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 public class PlayerMovement : MonoBehaviour
 {
     public Rigidbody rigg;
     private Vector3 moveDirection;
     public float speed;
     void Start()
     {
         rigg = GetComponent<Rigidbody>();
     }
     void Update()
     {
         float hor = Input.GetAxisRaw("Horizontal");
         float ver = Input.GetAxisRaw("Vertical");
         moveDirection = transform.forward * ver + transform.right * hor;
         rigg.AddForce(moveDirection.normalized * speed, ForceMode.Acceleration);
     }
 }

Thanks!

kkk2021-05-26-16-53-04-window.png (157.8 kB)

untitled.png (8.6 kB)

Add comment · Show 5

andrew-lukasik · May 26, 2021 at 02:35 PM 1

1.

First things first. Make your movement directions relative to camera, not a scene transform:

 Transform cameraTransform = Camera.main.transform;
 Vector3 cameraRelativeForward = Vector3.ProjectOnPlane( cameraTransform.forward , Vector3.up ).normalized;
 Vector3 cameraRelativeRight = Vector3.ProjectOnPlane( cameraTransform.right , Vector3.up ).normalized;
 moveDirection = ( cameraRelativeForward * ver + cameraRelativeRight * hor ).normalized;