Creating a CNC Gcode reader in unity using C# script

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i am writing a gcode reader in unity using c# script i have the following code but it does not work i dont know where is the problem and also i dont know where should i attach my script to
code :
using UnityEngine;
using System.Collections;

public class CNCController : MonoBehaviour
{
public GameObject linearAxisX; // The GameObject representing the X-axis
public GameObject linearAxisY; // The GameObject representing the Y-axis
public GameObject linearAxisZ; // The GameObject representing the Z-axis

public float feedRate = 1.0f; // Speed at which the axes move

private string[] gCodeLines; // Array to hold each line of the GCode
private int currentLineIndex; // Index to keep track of the current line being processed
private bool isMoving; // Flag to check if the axes are currently moving

void Start()
{
    currentLineIndex = 0;

    // Define the GCode commands directly here (Example GCode commands)
    string gCodeCommands = @"
        G0 X50 Y30 Z10
        G1 X100 Y70 Z40
        G1 X150 Y100 Z60
    ";

    // Split the input text by new lines to get individual GCode commands
    gCodeLines = gCodeCommands.Split('\n');
}

void Update()
{
    if (!isMoving)
    {
        StartCoroutine(ExecuteGCode());
    }
}

private IEnumerator ExecuteGCode()
{
    isMoving = true;

    while (currentLineIndex < gCodeLines.Length)
    {
        string line = gCodeLines[currentLineIndex];
        ProcessGCodeLine(line);
        currentLineIndex++;
        yield return new WaitForSeconds(1.0f / feedRate);
    }

    isMoving = false;
}

private void ProcessGCodeLine(string line)
{
    // Assuming G0 and G1 commands are in the form "Gx X[value]" where x can be 0, 1, or 2 for X, Y, or Z-axis respectively.
    if (line.StartsWith("G0") || line.StartsWith("G1"))
    {
        string[] tokens = line.Split(' ');
        foreach (string token in tokens)
        {
            if (token.StartsWith("X"))
            {
                // Extract the value after 'X' and convert it to a float
                float targetPositionX = float.Parse(token.Substring(1));
                // Move the X-axis to the target position
                linearAxisX.transform.position = new Vector3(targetPositionX, linearAxisX.transform.position.y, linearAxisX.transform.position.z);
                
            }
            else if (token.StartsWith("Y"))
            {
                // Extract the value after 'Y' and convert it to a float
                float targetPositionY = float.Parse(token.Substring(1));
                // Move the Y-axis to the target position
                linearAxisY.transform.position = new Vector3(linearAxisY.transform.position.x, targetPositionY, linearAxisY.transform.position.z);
            }
            else if (token.StartsWith("Z"))
            {
                // Extract the value after 'Z' and convert it to a float
                float targetPositionZ = float.Parse(token.Substring(1));
                // Move the Z-axis to the target position
                linearAxisZ.transform.position = new Vector3(linearAxisZ.transform.position.x, linearAxisZ.transform.position.y, targetPositionZ);
            }
        }
    }
}

}

unity
unity1920×1080 201 KB