Problems with 2D jump

[rugged galleon]

Hi, does someone know why my player jumps at different heights every time? script: https://paste.myst.rs/xzlk63kh

[rugged galleon]

UPDATE: this problem only happen if there is Input.GetButton("Jump"). With Input.GetButtonDown("Jump") this problem doesn't occur

[daring ether]

I would read the difference between the two

[mossy thunder]

Ok, so with Input.GetButton("Jump"), it returns true every time it runs, so if you tapped it, then it might run only once or so, but a slight bit longer, and it adds even more force. Even though you are adding force, for a tiny bit of time, it will still be on the ground

try adding a slight delay or something

GetButtonDown returns true once, when you press the button down, and only once

[daring ether]

let them figure it out!

[rugged galleon]

Before writing this post i knew that: with Input.GetButton, when you press the button, it will return true while the button is held down so if you hold it then the value will remain true and everytime the player touch the ground it will jump again
automatically. The Input.GetButtonDown instead return true only during the frame when the button was pressed so it will not return true until the user has released the button and pressed it again.

I didn't understand why Input.GetButton add a little of force

[mossy thunder]

If you still want the functionality of being able to hit jump too early and still jump as soon as you can check out jump buffering

You might also want to use velocity considering you have a rigid body attached

[rugged galleon]

In what way?

[mossy thunder]

With the command: (variable).velocity = new vector2(1,1); the variable needs to be your rigid body, and the numbers are the direction

The vector is an arrow that points somewhere with a speed, and the velocity becomes that with the command

[rugged galleon]

Do you mean like this?

[mossy thunder]

no, because the add force can do it multiple times, but if you did the rb.velocity = new Vector2(1,1); as the only line in that if statement, then it should work, AddForce can be weird too if you try having double jumps or something

gravity still is pulling you down when you are on the ground, just you don't see it, try watching what happens to the Y velocity during that clip under info

[rugged galleon]

Ah so you are suggesting to put the rb.velocity... in the if statement to allow the player to jump only when the y velocity is equal to 1?

[mossy thunder]

no, because the Y velocity keeps going down when you are on the ground

so if you set the velocity, then you ignore the previous velocity you had

the ground check seems like it works, so don't worry about that

what about:
if(Input.GetButtonDown("Jump") && isGrounded))
{
rb.velocity = new Vector2(rb.velocity.x, jumpForce);
}

[rugged galleon]

With Input.GetButtonDown it does work but i like more if i don't have to always re-press the button to jump

i like to hold the button to jump consecutively

[mossy thunder]

that's fair, it still should work

if you do Input.GetButton

[rugged galleon]

yeah thanks it works, i will try to understand more the rb.velocity

[mossy thunder]

yeah, it's really helpful