Please... help with jump buffering

I'm still really new to unity and i'm struggling to get a good play movement feel.
Basically, I want to implement jump buffering where if the player has yet to touch the ground but presses jump, there is a grace period that allows them to jump. possibly 5 frames or so or make it so I can easily edit the jump buffer time in a serializedfield? I'm still learning it all. Please, any help is greatly appreciated.

Code (CSharp):

1. public class Player : MonoBehaviour
2.  
3.     //Config / anything to do with setting our variables
4. {
5.     [SerializeField] float runSpeed = 5f;
6.     [SerializeField] float jumpSpeed = 5f;
7.     [SerializeField] float climbSpeed = 5f;
8.     [SerializeField] Vector2 deathkick = new Vector2(25f, 25f);
9.  
10.  
11.     //State
12.     bool isAlive = true;
13.  
14.     // Cached component references
15.  
16.     Rigidbody2D myRigidBody;
17.     Animator myAnimator;
18.     CapsuleCollider2D myBodyCollider;
19.     BoxCollider2D myFeet;
20.     float gravityScaleAtStart;
21.  
22.  
23.  
24.     // Message then Methods
25.  
26.  
27.     void Start()
28.     {
29.         myRigidBody = GetComponent<Rigidbody2D>();
30.         myAnimator = GetComponent<Animator>();
31.         myBodyCollider = GetComponent<CapsuleCollider2D>();
32.         gravityScaleAtStart = myRigidBody.gravityScale;
33.         myFeet = GetComponent<BoxCollider2D>();
34.     }
35.  
36.     // Update is called once per frame
37.     void Update()
38.     {
39.         if (!isAlive) { return; }
40.         Run();
41.         FlipSprite();
42.         Jump();
43.         ClimbLadder();
44.         Die();
45.  
46.     }
47.     private void Run ()
48.     {
49.         float controlThrow = CrossPlatformInputManager.GetAxis("Horizontal"); // value is between +1 and -1
50.         Vector2 playerVelocity = new Vector2(controlThrow * runSpeed, myRigidBody.velocity.y);
51.         myRigidBody.velocity = playerVelocity;
52.  
53.         bool playerHasHorizontalSpeed = Mathf.Abs(myRigidBody.velocity.x) > Mathf.Epsilon;
54.         myAnimator.SetBool("Running", playerHasHorizontalSpeed);
55.        
56.     }
57.  
58.     private void ClimbLadder()
59.     {
60.         if(!myFeet.IsTouchingLayers(LayerMask.GetMask("Climbing")))
61.         {
62.             myAnimator.SetBool("Climbing", false);
63.             myRigidBody.gravityScale = gravityScaleAtStart;
64.             return;
65.         }
66.  
67.         float controlThrow = CrossPlatformInputManager.GetAxis("Vertical");
68.         Vector2 climbVelocity = new Vector2(myRigidBody.velocity.x, controlThrow * climbSpeed);
69.         myRigidBody.velocity = climbVelocity;
70.         myRigidBody.gravityScale = 0f;
71.  
72.         bool playerHasVerticalSpeed = Mathf.Abs(myRigidBody.velocity.y) > Mathf.Epsilon;
73.         myAnimator.SetBool("Climbing", playerHasVerticalSpeed);
74.     }
75.  
76.     private void Jump()
77.     {
78.         if (!myFeet.IsTouchingLayers(LayerMask.GetMask("Ground"))) { return; }
79.  
80.         if (CrossPlatformInputManager.GetButtonDown("Jump"))
81.         {
82.             Vector2 jumpVelocityToAdd = new Vector2(0f, jumpSpeed);
83.             myRigidBody.velocity += jumpVelocityToAdd;
84.         }
85.     }
86.  
87.     private void Die()
88.     {
89.         if (myBodyCollider.IsTouchingLayers(LayerMask.GetMask("Enemy", "Hazzards")))
90.         {
91.             isAlive = false;
92.             myAnimator.SetTrigger("Dying");
93.             GetComponent<Rigidbody2D>().velocity = deathkick;
94.             FindObjectOfType<GameSession>().ProcessPlayerDeath();
95.         }
96.     }
97.  
98.  
99.     private void FlipSprite()
100.     {
101.         bool playerHasHorizontalSpeed = Mathf.Abs(myRigidBody.velocity.x) > Mathf.Epsilon;
102.         if (playerHasHorizontalSpeed)
103.         {
104.             transform.localScale = new Vector2(Mathf.Sign(myRigidBody.velocity.x), 1f);
105.         }
106.     }
107. }

 

Check out this GDC talk, it will assist you with the idea. At minute 8:30 he talks about Early Input Forgiveness

The whole talk is great, he also goes over Late Input Forgiveness before that point as well.

 

Hi @John_Briscoe

Google youtuber GamesPlusJames, he just recently did a video about it, including other similar topics like late jump.

 

Thanks you guys are legends
@eses i believe you’re referring to his 5 ways to make a better platformer and indeed he puts code examples and it’s literally exactly what I needed! Thanks so much I can’t believe his video didn’t come up through all my searching

 

Just a little extra, but here are all the video game tutorial pages or game dev pages I subscribe to on YouTube. All of these have helped me in one way or another.