Help me i joined unity 4 months ago and i dont know how to fix the error CS0138:

Unity Engine
,
1 
using System.Collections;
using UnityEngine.Debug;
using UnityEngine;

public class JoyStickAttack : MonoBehaviour
{
    private Vector2 startingPoint;
    private int leftTouch = 99;

    // Update is called once per frame
    void Update()
    {
        //  Identifying if the button was just pressed or pressed or not pressed
        int i = 0;
        while (i < Input.TouchCount)
            Touch t = Input.GetTouch(i);
            Vector2 touchPos = getTouchPosition(t.position) * -1;
            if(t.phase == TouchPhase.Began)
            {
                 if(t.position.x > ScreenWidth / 2)
                 {
                     shootBullet();
                 }
                 else
                 {
                leftTouch = t.fingerId;
                startingPoint = touchPos;
                 }

            }else if(t.phase == TouchPhase.Moved)
            {

            }else if(t.phase == TouchPhase.Ended)
            {

            }
    }

    //Identifyies where is the finger touching
    Vector2 getTouchPosition(Vector2 touchPosition)
    {
        return GetComponent<Camera>().ScreenToWorldPoint(new Vector3(touchPosition.x, touchPostion.y, transform.position.z));
    }




    void CharacterMovement(Vector2 direction)
    {
       
    }

    void shootBullet()
    {
       
    }
}
2

Get rid of using UnityEngine.Debug.

3

the error is:
error CS0138: A ‘using namespace’ directive can only be applied to namespaces; ‘Debug’ is a type not a namespace. Consider a ‘using static’ directive instead

4

i tried it gave me 5 new errors

5

it gave me the errors
error CS0117: ‘Input’ does not contain a definition for ‘TouchCount’
error CS1023: Embedded statement cannot be a declaration or labeled statement
error CS0103: The name ‘t’ does not exist in the current context
The name ‘ScreenWidth’ does not exist in the current context
error CS0103: The name ‘touchPostion’ does not exist in the current context

6

Should be “touchCount”, with a lowercase ‘t’.
https://docs.unity3d.com/ScriptReference/Input-touchCount.html

You’re missing curly braces in your while-loop statement.
It looks like you’re also creating an endless loop as well, since you’re not incrementing the i variable that the while-loop’s condition is checking.

Why not use a for-loop instead?

for(int i = 0; i < Input.touchCount; i++)
{
   Touch t = Input.GetTouch(i);
   //etc...
}

You haven’t declared a “ScreenWidth” variable anywhere in your script. You’re also using a “TouchPhase” variable, but this variable hasn’t been declared anywhere either.

You misspelled “touchPosition”.

7

oops btw thanks bro