How can I add a jump mechanic to my player using the character controller component?

Questions & Answers
1

Hello, I’m relatively new to C# and Unity, and I would like to add the ability to jump using the Input.GetButtonDown method because I want to give the option to use the keyboard and controller. Here’s the script:

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

public class PlayerMovement : MonoBehaviour
{
	public float speed = 6f;
	public float gravity = -8f;

	private CharacterController controller;

	void Start ()
	{
		controller = GetComponent<CharacterController> ();
	}
	
	void Update ()
	{
		float deltaX = Input.GetAxis("Horizontal") * speed;
		float deltaZ = Input.GetAxis("Vertical") * speed;

		Vector3 movement = new Vector3(deltaX, 0, deltaZ);
		movement = Vector3.ClampMagnitude(movement, speed); //limits speed

		movement.y = gravity; //applies gravity

		movement *= Time.deltaTime; //to make movement independent of FPS
		movement = transform.TransformDirection(movement);
		controller.Move(movement);
	}
}

Thank you very much in advance.

P.S. I will appreciate any pointers you can give me to become a better programmer (books, courses, articles, etc.)

2

I found the answer on youtube, here’s the link to the video: Jump And Gravity - Game Mechanics - Unity 3D - YouTube

and here is the script, All I did was implement his tutorial into mine:

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

public class PlayerMovement : MonoBehaviour
{
	public float speed = 6f;
	public float jumpForce = 10f;

	private float gravity = 14f;
	private float verticalVelocity;

	private CharacterController controller;

	void Start ()
	{
		controller = GetComponent<CharacterController> ();
	}
	
	void Update ()
	{
		float deltaX = Input.GetAxis("Horizontal") * speed;
		float deltaZ = Input.GetAxis("Vertical") * speed;

		Vector3 movement = new Vector3(deltaX, 0, deltaZ);
		movement = Vector3.ClampMagnitude(movement, speed); //limits speed

		if (controller.isGrounded)
		{
			verticalVelocity = -gravity * Time.deltaTime;
			if (Input.GetButtonDown("Jump"))
			{
				verticalVelocity = jumpForce;
			}
		}
		else
		{
			verticalVelocity -= gravity * Time.deltaTime;
		}

		movement.y = verticalVelocity; //applies gravity

		movement = transform.TransformDirection(movement);
		controller.Move(movement * Time.deltaTime);
	}
}

I hope this can help people trying to make games where they need their players to jump.