Unity3D FPS Controller

FpsController.cs

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

public class FpsController : MonoBehaviour {

	public float mouseSensitivityX = 1.0f;
	public float mouseSensitivityY = 1.0f;

	public float walkSpeed = 10.0f;
	Vector3 moveAmount;
	Vector3 smoothMoveVelocity;

	Transform cameraT;
	float verticalLookRotation;

	Rigidbody rigidbodyR;

	float jumpForce = 250.0f;
	bool grounded;
	public LayerMask groundedMask;

	bool cursorVisible;

	// Use this for initialization
	void Start () {
		cameraT = Camera.main.transform;
		rigidbodyR = GetComponent<Rigidbody> ();
		LockMouse ();
	}
	
	// Update is called once per frame
	void Update () {
		// rotation
		transform.Rotate (Vector3.up * Input.GetAxis ("Mouse X") * mouseSensitivityX);
		verticalLookRotation += Input.GetAxis ("Mouse Y") * mouseSensitivityY;
		verticalLookRotation = Mathf.Clamp (verticalLookRotation, -60, 60);
		cameraT.localEulerAngles = Vector3.left * verticalLookRotation;

		// movement
		Vector3 moveDir = new Vector3 (Input.GetAxisRaw ("Horizontal"), 0, Input.GetAxisRaw ("Vertical")).normalized;
		Vector3 targetMoveAmount = moveDir * walkSpeed;
		moveAmount = Vector3.SmoothDamp (moveAmount, targetMoveAmount, ref smoothMoveVelocity, .15f);

		// jump
		if (Input.GetButtonDown ("Jump")) {
			if (grounded) {
				rigidbodyR.AddForce (transform.up * jumpForce);
			}
		}

		Ray ray = new Ray (transform.position, -transform.up);
		RaycastHit hit;

		if (Physics.Raycast(ray, out hit, 1 + .1f, groundedMask)) {
			grounded = true;
		}
		else {
			grounded = false;
		}

		/* Lock/unlock mouse on click */
		if (Input.GetMouseButtonUp (0)) {
			if (!cursorVisible) {
				UnlockMouse ();
			} else {
				LockMouse ();
			}
		}
	}

	void FixedUpdate() {
		rigidbodyR.MovePosition (rigidbodyR.position + transform.TransformDirection (moveAmount) * Time.fixedDeltaTime);
	}

	void UnlockMouse() {
		Cursor.lockState = CursorLockMode.None;
		Cursor.visible = true;
		cursorVisible = true;
	}

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

YOINK

nice fps code you have here...
OUR CODE