player falling into the terrain when falling on it - unity3d

Question

https://drive.google.com/file/d/1Uc2sys7ZFd686UkQlYAMEDZekFEHZcAr/view?usp=sharing
as u see in the video when I try to jump from the mountain the player just goes through the terrain as if it's not there but I can still move normal and I noticed that whenever I move fast while being off the ground the problem appears like when I first started this level I was jumping and returning to the ground very slowly and whenever I jump and move fast towards a hell the problem occurs so I increased the gravity so that I can't move while jumping but still if I move fast while in the air the player won't collide with the terrain but when I move normally or fast on the ground non of that happen's can anyone help me?
I searched on the internet and I found nothing related to this.
terrain 1 properties:
https://drive.google.com/file/d/1VwelecESLjfD7UseP6lmQ0Kkg-3pwg67/view?usp=sharing
terrain 2 properties:
https://drive.google.com/file/d/1ZH-cIBXlhBMPbmkgZXkQmjt-QVpe6MLu/view?usp=sharing
player properties:
https://drive.google.com/file/d/1vTp3TSuIDcYm3orWhy5X3kw6wwBmwNcE/view?usp=sharing
here are the codes used for this:
mouse lock:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class mouselock : MonoBehaviour
{
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
Cursor.lockState = CursorLockMode.None;
Cursor.visible = true;
}
}
player movement:
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
public class playermove2 : MonoBehaviour
{
[Header("movement")]
private float movespeed = 10f;
[SerializeField] float airmultiplier = 0.4f;
[SerializeField] Transform oriantation;
private float horizontalmovement;
private float verticalmovement;
private float rbdrag = 6f;
private Vector3 movedirection;
public float movementmultiplier = 10f;
public bool isgrounded;
private float playerhight = 1.8f;
public float jumpforce = 8;
public Rigidbody rb;
public float grounddrag = 6f;
public float aridrag = 2f;
public int number;
// Start is called before the first frame update
void Start()
{
rb = GetComponent<Rigidbody>();
}
// Update is called once per frame
void Update()
{
if (number == 11)
{
SceneManager.LoadScene("finish scene2");
}
if (Input.GetKeyDown(KeyCode.LeftShift))
{
movespeed = 25;
}
if (Input.GetKeyUp(KeyCode.LeftShift))
{
movespeed = 20;
}
if (Input.GetKeyDown(KeyCode.Space) && isgrounded)
{
jump();
}
print(isgrounded);
myinput();
controledrag();
}
private void myinput()
{
horizontalmovement = Input.GetAxisRaw("Horizontal");
verticalmovement = Input.GetAxisRaw("Vertical");
movedirection = oriantation.forward * verticalmovement + oriantation.right * horizontalmovement;
}
private void FixedUpdate()
{
moveplayer();
}
void moveplayer()
{
if (isgrounded)
{
rb.AddForce(movedirection.normalized * movespeed * movementmultiplier, ForceMode.Acceleration);
}
else
{
rb.AddForce(movedirection.normalized * movespeed * movementmultiplier * airmultiplier, ForceMode.Acceleration);
}
}
void controledrag()
{
if (isgrounded)
{
rb.drag = grounddrag;
}
else
{
rb.drag = aridrag;
}
}
void jump()
{
rb.AddForce(transform.up * jumpforce, ForceMode.Impulse);
}
}
collisions:
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class collisions2 : MonoBehaviour
{
public playermove2 player;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
}
private void OnCollisionEnter(Collision other)
{
if (other.gameObject.layer == 6)
{
player.isgrounded = true;
}
}
private void OnCollisionExit(Collision other)
{
if (other.gameObject.layer == 6)
{
player.isgrounded = false;
}
}
}
camera movement:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class MoveCamera : MonoBehaviour
{
[SerializeField] Transform cameraposition;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
transform.position = cameraposition.position;
}
}
player look:
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class playerlook : MonoBehaviour
{
[SerializeField] private float sensX;
[SerializeField] private float sensY;
[SerializeField] Transform cam;
[SerializeField] Transform oriantation;
private float mouseX;
private float mouseY;
private float multiplier = 0.01f;
private float xRotation;
private float yRotation;
private void Start()
{
Cursor.lockState = CursorLockMode.Locked;
Cursor.visible = false;
}
private void Update()
{
mouseX = Input.GetAxisRaw("Mouse X");
mouseY = Input.GetAxisRaw("Mouse Y");
yRotation += mouseX * sensX * multiplier;
xRotation -= mouseY * sensY * multiplier;
xRotation = Mathf.Clamp(xRotation, -90f, 90f);
cam.transform.rotation = Quaternion.Euler(xRotation, yRotation, 0);
oriantation.transform.rotation = Quaternion.Euler( 0, yRotation, 0);
}
}
triggers:
using UnityEngine;
using UnityEngine.SceneManagement;
public class triggers2 : MonoBehaviour
{
public playermove2 playerMove;
private void OnTriggerEnter(Collider other)
{
if (other.gameObject.layer == 8)
{
Destroy(other.gameObject);
playerMove.number++;
}
}
}
score and high score:
using UnityEngine;
using UnityEngine.UI;
public class scoreandhighscore2 : MonoBehaviour
{
public Text highscoretext;
public Text scoretext;
public playermove2 playermove;
// Start is called before the first frame update
void Start()
{
highscoretext.text = "high score: " + PlayerPrefs.GetInt("highscore");
}
// Update is called once per frame
void Update()
{
scoretext.text = "score: " + playermove.number.ToString();
}
private void FixedUpdate()
{
if ( playermove.number > PlayerPrefs.GetInt("highscore"))
{
PlayerPrefs.SetInt("highscore", playermove.number);
}
}
}

Answer 1

sooooo I solved the problem the solution is just converting the collision detection to continuous and just like that the player won't break through the terrain I hope this is helpful for other people
here's a pic of what I did:
https://drive.google.com/file/d/1ati8xQFQxwqAg8eJnmZzrs8D05HGuJLs/view?usp=sharing