unity first person character script code example

Example 1: how to make a first person controller in c#

public float speed = 10.0f;
     public float straffeSpeed = 7.0f;
     public float jumpHeight = 3.0f;
     Rigidbody rb;
     
     
 
     // Start is called before the first frame update
     void Start()
     {
         Cursor.lockState = CursorLockMode.Locked;
         rb = GetComponent<Rigidbody>();
     }
 
     // Update is called once per frame
     void Update()
     {
         float DisstanceToTheGround = GetComponent<Collider>().bounds.extents.y;
         bool IsGrounded = Physics.Raycast(transform.position, Vector3.down, DisstanceToTheGround + 0.1f);
 
         float translation = Input.GetAxis("Vertical") * speed;
         float straffe = Input.GetAxis("Horizontal") * straffeSpeed;
         translation *= Time.deltaTime;
         straffe *= Time.deltaTime;
 
 
         //anim.SetTrigger("isWalking");
 
         transform.Translate(straffe, 0, translation);
         //rb.velocity = transform.forward * translation + transform.right * straffe ;
         
 
         if(IsGrounded && Input.GetKeyDown("space"))
         {
             Debug.Log("JUMP!");
             rb.velocity = new Vector3(0, jumpHeight, 0);            
         }
         
         if (Input.GetKey(KeyCode.R))
         {
             Scene scene = SceneManager.GetActiveScene(); 
             SceneManager.LoadScene(scene.name);
         }
 
         if (Input.GetKeyDown("escape"))
         {
             Application.Quit();
             //Cursor.lockState = CursorLockMode.None;
         }
 
     }
 }

Example 2: first person camera controller unity

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

public class CameraLook : MonoBehaviour
{
	public float minX = -60f;
	public float maxX = 60f;

	public float sensitivity;
	public Camera cam;

	float rotY = 0f;
	float rotX = 0f;

	void Start()
	{
		Cursor.lockState = CursorLockMode.Locked;
		Cursor.visible = false;
	}

    void Update()
    {
		rotY += Input.GetAxis("Mouse X") * sensitivity;
		rotX += Input.GetAxis("Mouse Y") * sensitivity;

		rotX = Mathf.Clamp(rotX, minX, maxX);

		transform.localEulerAngles = new Vector3(0, rotY, 0);
		cam.transform.localEulerAngles = new Vector3(-rotX, rotY, 0);

		if (Input.GetKeyDown(KeyCode.Escape))
		{
			Cursor.lockState = CursorLockMode.Locked;
			Cursor.visible = false;
		}

		if (Cursor.visible && Input.GetMouseButtonDown(1))
		{
			Cursor.lockState = CursorLockMode.Locked;
			Cursor.visible = false;
		}
	}
}