Bugs in my game

hello, you need something like Time.deltaTime, this can make you movement more smooth here is tutorial

https://unity3d.com/ru/learn/tutorials/topics/scripting/delta-time?playlist=17117

and if you need something like a rigidbody controller, which allous you to move in scene, I have it too, but only woth out camera rotation.

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class Rigidbody_Controller : MonoBehaviour { // Script works perfect only need to set camera rotation and such stuff

 public Rigidbody rb; // put your player here
 // and you need collider + Rigidbody component

 public float speed = 10.0f;
 public float gravity = 10.0f;
 public float maxVelocityChange = 10.0f;
 public bool canJump = true;
 public float jumpHeight = 2.0f;
 private bool grounded = false;



 void Awake () {
     rb.freezeRotation = true;
     rb.useGravity = false;

 }

 void FixedUpdate () {
     if (grounded) {
         // Calculate how fast we should be moving
         Vector3 targetVelocity = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
         targetVelocity = transform.TransformDirection(targetVelocity);
         targetVelocity *= speed;

         // Apply a force that attempts to reach our target velocity
         Vector3 velocity = rb.velocity;
         Vector3 velocityChange = (targetVelocity - velocity);
         velocityChange.x = Mathf.Clamp(velocityChange.x, -maxVelocityChange, maxVelocityChange);
         velocityChange.z = Mathf.Clamp(velocityChange.z, -maxVelocityChange, maxVelocityChange);
         velocityChange.y = 0;
         rb.AddForce(velocityChange, ForceMode.VelocityChange);

         // Jump
         if (canJump && Input.GetButton("Jump")) {
             rb.velocity = new Vector3(velocity.x, CalculateJumpVerticalSpeed(), velocity.z);
         }
     }

     // We apply gravity manually for more tuning control
     rb.AddForce(new Vector3 (0, -gravity * rb.mass, 0));

     grounded = false;
 }

 void OnCollisionStay () {
     grounded = true;    
 }

 float CalculateJumpVerticalSpeed () {
     // From the jump height and gravity we deduce the upwards speed 
     // for the character to reach at the apex.
     return Mathf.Sqrt(2 * jumpHeight * gravity);
 }

}