Question by Banditmayonnaise · Feb 15, 2021 at 11:07 AM · c#raycast 2d-platformer physics2d raycasthit2d

Need help making a ledge climber. The problem, transform.position always returns to vector( 0, 0)

Hi I'm trying to make a method that lets players climb a ledge. I have two raycast one for Ledge and one for Wall detection. I the ledge is false, then climb the ledge. Simple.

Here comes the problem: When the Wall check is true and the ledge Check is true, Set player transform.position to be near the ledge. Then afterward transform.position to be above the ledge. But for some reason whenever I try to call Set player transform.position near the ledge, it just teleports back to the default vector value 0, 0.

     [Header("Ledge check")]
     private bool canClimbLedge = false;
     private bool ledgeDetected;
 
     private Vector2 workspace;
 
     //NEW SHIT
     private Vector2 detectedPos;
     private Vector2 cornerPos;
     private Vector2 startPos;
     private Vector2 stopPos;
     [Header("Ledge Climb State")]
     public Vector2 startOffset;
     public Vector2 stopOffset;
 
 private void FixedUpdate()
 {        if (coll.isTouchingWall && !coll.isTouchingRightLedge || !coll.isTouchingLeftLedge)
         {
             SetDetectedPosition(transform.position);
         }
 }
 
 void Update()
     {
         DetermineCornerPosition();
 
         if (coll.onWall && !coll.isTouchingRightLedge)
         CheckLedgeClimb();
         if(canClimbLedge && coll.onGround)
         FinishLedgeClimb();
 
         if (dir.x < 0)
         {
             if (groundTouch == true && !wallGrab)
                // dustParticle.Play();
 
             if (wallGrab != true)
             {
                 side = -1;
                 //anim.Flip(side);
 
             }
 
         }
 
         if (dir.x > 0)
         {
             if (groundTouch == true && !wallGrab)
                 // dustParticle.Play();
 
                 if (wallGrab != true)
                 {
                     side = 1;
                     // anim.Flip(side);
                 }
         }
     }
 
 public void SetDetectedPosition(Vector2 pos) => detectedPos = pos;
     public Vector2 DetermineCornerPosition()
     {
         RaycastHit2D xHit = Physics2D.Raycast(coll.wallCheck.position, Vector2.right * side, coll.wallCheckDistance, coll.groundLayer);
         float xDist = xHit.distance;
         workspace.Set((xDist * side) * side, 0.015f);
         RaycastHit2D yHit = Physics2D.Raycast(coll.ledgeCheck.position + (Vector3)(workspace), Vector2.down, coll.ledgeCheck.position.y - coll.wallCheck.position.y + 0.015f, coll.groundLayer);
         float yDist = yHit.distance;
 
         //Upper Corner Position of ledge
         workspace.Set(coll.wallCheck.position.x + (xDist * side), coll.ledgeCheck.position.y - yDist);
         return workspace;
     }
     private void CheckLedgeClimb()
     {
 
         if (coll.isTouchingWall && !coll.isTouchingRightLedge && !ledgeDetected)
         {
             ledgeDetected = true;
             //Freeze player in the detectedPos
             rb.velocity = Vector2.zero;
             rb.gravityScale = 0f;
             transform.position = detectedPos;
             cornerPos = DetermineCornerPosition();
         }
 
         if(ledgeDetected && !canClimbLedge)
         {
             canClimbLedge = true;
             startPos.Set(cornerPos.x - (side * startOffset.x), cornerPos.y - startOffset.y);
             stopPos.Set(cornerPos.x + (side * stopOffset.x), cornerPos.y + stopOffset.y);
         }
 
         Debug.Log(startPos);
         canMove = false;
         transform.position = startPos;
         canClimbLedge = true;
     }
 
     public void FinishLedgeClimb()
     {
      //Call the last part of climbing the ledge
     }

In the Collision Script:

 void FixedUpdate()
 {
     isTouchingWall = Physics2D.Raycast(wallCheck.position, transform.right, wallCheckDistance, groundLayer);
 
     isTouchingRightLedge = isTouchingWall = Physics2D.Raycast(ledgeCheck.position, transform.right, wallCheckDistance, groundLayer);
 }

Any help will be much appreciated, and if you have any other solution to make a ledge climber, I'm all ears.

Add comment