camera slips trough the terrain limit (the given edges of the terrain) every time i rotate the camera - how can i fix that? - camera

Question

I already tried to clamp it with mathf or hardocding it, but it didnt help either, it just slips trough, every time I rotate the camera on the edge of the map (min/max hsp - min/max vsp) the given edges of the terrain.
I'm out of ideas and searched days for a similar problem in hope to see my mistake and now I'm here. Hopefully someone can help me and show me the mistake I made. I want to learn so badly. you can see the code I used here:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CameraMovementScript : MonoBehaviour
{
float speed = 1f;
float zoomSpeed = 10f;
float rotateSpeed = 50f;
float maxHeight = 200f;
float minHeight = 20f;
float minHsp = 10f;
float maxHsp = 750f;
float minVsp = 10f;
float maxVsp = 750f;
Vector2 p1;
Vector2 p2;
// Start is called before the first frame update
void Start()
{
}
// Update is called once per frame
void Update()
{
if (Input.GetKey(KeyCode.LeftShift))
{
speed = 1f;
zoomSpeed = 2000f;
}
else
{
speed = 0.5f;
zoomSpeed = 1550f;
}
float hsp = transform.position.y * speed * Input.GetAxis("Horizontal") * Time.deltaTime;
float vsp = transform.position.y * speed * Input.GetAxis("Vertical") * Time.deltaTime;
float scrollSP = Mathf.Log(transform.position.y) * -zoomSpeed * Input.GetAxis("Mouse ScrollWheel") * Time.deltaTime;
if ((transform.position.y >= maxHeight) && (scrollSP > 0))
{
scrollSP = 0;
}
else if ((transform.position.y <= minHeight) && (scrollSP <0))
{
scrollSP = 0;
}
if((transform.position.y + scrollSP) > maxHeight)
{
scrollSP = maxHeight - transform.position.y;
}
else if((transform.position.y + scrollSP) < minHeight)
{
scrollSP = minHeight - transform.position.y;
}
if ((transform.position.x >= maxHsp) && (hsp > 0))
{
hsp = 0;
}
else if ((transform.position.x <= minHsp) && (hsp < 0))
{
hsp = 0;
}
if ((transform.position.x + hsp) > maxHsp)
{
hsp = maxHsp - transform.position.x;
}
else if ((transform.position.x + hsp) < minHsp)
{
hsp = minHsp - transform.position.x;
}
if ((transform.position.z >= maxVsp) && (vsp > 0))
{
vsp = 0;
}
else if ((transform.position.z <= minVsp) && (vsp < 0))
{
vsp = 0;
}
if ((transform.position.z + vsp) > maxVsp)
{
vsp = maxVsp - transform.position.z;
}
else if ((transform.position.z + vsp) < minVsp)
{
vsp = minVsp - transform.position.z;
}
Vector3 verticalMove = new Vector3(0,scrollSP,0);
Vector3 lateralMove = hsp * transform.right;
Vector3 forwardMove = transform.forward;
forwardMove.y = 0;
forwardMove.Normalize();
forwardMove *= vsp;
Vector3 move = verticalMove + lateralMove + forwardMove;
transform.position += move;
getCameraRotation();
}
void getCameraRotation()
{
if(Input.GetMouseButtonDown(2))
{
p1 = Input.mousePosition;
}
if(Input.GetMouseButton(2))
{
p2 = Input.mousePosition;
float dx = (p2 - p1).x * rotateSpeed * Time.deltaTime;
float dy = (p2 - p1).y * rotateSpeed * Time.deltaTime;
transform.rotation *= Quaternion.Euler(new Vector3(0,dx,0));
transform.GetChild(0).transform.rotation *= Quaternion.Euler(new Vector3(-dy,0,0));
p1 = p2;
}
}
}