how to climb a vine in 2D gameplay?

Questions & Answers
1

i have part of the script done but i don't know how to make the up arrow from jumping go to just upward movement.

Script:

function OnTriggerStay(hit : Collider)
{

     if(hit.tag == "Vinetrig" && Input.GetKeyDown(KeyCode.UpArrow))
     {

     PlatformerController.canControl = false; //Turns off normal controls

    //What should i put here to make the player "walk" upwards on the y axis?
    }

}
2

Depending on how complicated you want your movement to be, you could do something simple like:

function OnTriggerStay(hit : Collider)
{

     if(hit.tag == "Vinetrig" && Input.GetKeyDown(KeyCode.UpArrow))
     {

          PlatformerController.canControl = false; //Turns off normal controls
          cachedCharacterController.Move(Vector3.up * climbSpeed * Time.deltaTime); //Link to the character controller
          //If you use Input.GetAxis, you can have the player move up or down without writing twice as much code.

    }

}

Maybe, for some reason you can't but if you setup a vertical input in the input manager, then you will be able to save writing an identical function for the down.

//Moves player up and down.
function OnTriggerStay(hit : Collider)
{

     if(hit.tag == "Vinetrig" && Input.GetAxis("VerticalAxis")) //Is the user 
     //pressing up or down.
     {

          PlatformerController.canControl = false; //Turns off normal controls
          cachedCharacterController.Move(Vector3.up * Input.GetAxisRaw("VerticalAxis") * climbSpeed * Time.deltaTime); //Link to the character controller
          //Move based on the value of the input.
    }

}