Added Double Jump

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#1

While I was working on limiting the infinite jump problem, I thought it would be fun to arrange the platforms in different heights and have a double jump instead, not sure if this is the right way but here is how I did it:

const GRAVITY = 3500
var jumps = 0
const MAX_JUMPS = 2

func jump():
	if Input.is_action_just_pressed("ui_up") and jumps < MAX_JUMPS:
		motion.y = JUMP_SPEED
		jumps += 1
	elif is_on_floor():
		jumps = 0
#2

Nice job. That is almost exactly how I implemented double jump for my charecter as well. Id say that there isn’t really a wront way to do something as long as you get the functionality you are looking for, and it doesn’t create any bugs in your program!

Happy Godoting,
Greg

#3

This is how I did it when I was assigned a challenge not to jump infinitely, in case it would help someone.
Commented parts are about double jumping.

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

public class PlayerMovement : MonoBehaviour
{

Vector2 moveInput;
Rigidbody2D myRigidbody;
[SerializeField] int movementSpeed = 5;
[SerializeField] int jumpSpeed = 5;
bool flipX = false;
Animator myAnimator;
Collider2D myCollider2D;
bool canJump = false; // = true when touching Ground Layer (mask 64)
int jumpsAvailable;  // Number of jumps available




void Start()
{
    myRigidbody = GetComponent<Rigidbody2D>();
    myAnimator = GetComponent<Animator>();
    Debug.Log(LayerMask.GetMask("Ground"));  
    myCollider2D = GetComponent<Collider2D>();


}

void Update()
{
    Run();
    GetComponent<SpriteRenderer>().flipX = flipX;
    canJump = myCollider2D.IsTouchingLayers(64);   // not sure if Rick did differently, just started a challenge
    DoubleJump(); // because we love it in video games!


}


void Run()
{
    Vector2 playerVelocity = new Vector2(moveInput.x * movementSpeed, myRigidbody.velocity.y);
    myRigidbody.velocity = playerVelocity;
}

void DoubleJump()
{
    if (canJump)
    {
        jumpsAvailable = 1;     // jumps are available again after you touch the ground
    }
}

void OnJump(InputValue value)
{
    if (canJump || jumpsAvailable > 0)  //   || means OR
    {
        if (value.isPressed)
        {
            myRigidbody.velocity += new Vector2(0f, jumpSpeed);
            jumpsAvailable--;                                    // you've got only 1 more jump left until you touch the ground again
            if (!canJump) Debug.Log("Double jump!");            // showing in console if we jumped while not touching the ground, can do it once because of our code
            
        }
    }

}
void OnMove(InputValue value)
{
    moveInput = value.Get<Vector2>();
    Debug.Log(moveInput);
    if (moveInput.x < 0)
    {
        flipX = true;
        myAnimator.SetBool("isRunning", true);

    }
    else if (moveInput.x > 0)
    {
        flipX = false;
        myAnimator.SetBool("isRunning", true);
    }
    else
    {
        myAnimator.SetBool("isRunning", false);
    }
}

}

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