Quick jumping code question. Cant jump! (noob),Quick jumping code help. (Noob)

Questions & Answers
1

I’m new here so sorry if this ends up on the wrong form but I’ve been working on this code to make the character move in a 3d space and I cant seem to jump. I’m brand new to coding so it maybe an oversight.

Code here:

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

public class PlayerMovement : MonoBehaviour { public CharacterController controller;

public float speed = 12f;
public float gravity = -9.81f;
public float jumpHeight = 3f;

public Transform groundCheck;
public float groundDistance = 0.4f;
public LayerMask groundMask;

Vector3 velocity;
bool isGrounded;

// Update is called once per frame
void Update()
{
isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);

 if(isGrounded && velocity.y < 0)
 {
     velocity.y = 2f;
 }

 float x = Input.GetAxis("Horizontal");
 float z = Input.GetAxis("Vertical");

 Vector3 move = transform.right * x + transform.forward * z;

 controller.Move(move * speed * Time.deltaTime);

 if(Input.GetButtonDown("Jump") && isGrounded)
 {
     velocity.y = Mathf.Sqrt(jumpHeight * -2f * gravity);
 }

 velocity.y += gravity * Time.deltaTime;

 controller.Move(velocity * Time.deltaTime);

}

2

I think you should have a RigidBody component and just modify the velocity, then the physics will work by itself:

Vector3 velocity = rb.velocity;
velocity.x = x * speed;
velocity.z = z * speed;
if(Input.GetButtonDown(“Jump”) && isGrounded) velocity.y = jumpHeight * -2f;

Not sure why you would want to include gravity in the jump velocity.

Don’t know why your current code does not work.