How to detect when a key is held down?

Unity Engine
1

Here is my code:

using System.Connections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class player : MonoBehavior
{
    Vector3 tempPos;

    // Start is called before the first frame update
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        // Player movment
        if (Input.GetKeyDown(KeyCode.RightArrow))
        {
        tempPos = transform.position;
        float speed = 0.3f;
        tempPos.x += speed;
        transform.position = tempPos;
       }
    }
}
1 Like
2

if (Input.GetKey(KeyCode.RightArrow))

8 Likes
3

Thank you

3 Likes
4

Just want to clarify further:

  • GetKeyDown only runs once on the first frame that the key was pressed.

  • GetKeyUp only runs once on the frame that the key was released.

  • GetKey runs continuously to check if a key is currently pressed down or not.

17 Likes
5

And to clarify one more step, the above is ONLY guaranteed to be true in Update().

It is NOT necessarily true in any other function (such as FixedUpdate())

@Vryken if you wanna add that to your post I’ll just delete mine. I like how yours is nice and boom-boom-boom straight.

5 Likes
6

Yeah i know it will only run only be guaranteed to run forever in the Update()

7

I see you tried to make player movement so here is the code for it
void Update()
{
var speed = 20;
var jumpforce = 50;
if (Input.GetKey(KeyCode.D))
{
Vector2 right = new Vector2 (1,0);
transform.Translate(right * speed * Time.deltaTime);
}
if (Input.GetKey(KeyCode.A))
{
Vector2 left = new Vector2 (-1,0);
transform.Translate(left * speed * Time.deltaTime);
}
if (Input.GetKey(KeyCode.Space))
{
Vector2 jump = new Vector2 (0,1);
transform.Translate(jump * jumpforce * Time.deltaTime);
}
}

paste this instead of void Update()

8

Hi,
Please don’t necro post .
Create a new thread to ask your question and please use code tags.
Thread locked.

1 Like