Start Unit PLacement

navmesh not working yet

Assets/Scripts/UnitButton.cs

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+using UnityEngine;
+using UnityEngine.UI;
+using TMPro;
+using Unity.VisualScripting;
+using System;
+
+public class UnitButton : MonoBehaviour
+{
+
+    [SerializeField] private GameObject Mask;
+
+    [SerializeField] GameObject unitPrefab;
+    [SerializeField] UnitPlacement unitPlacement;
+    public event Action OnClicked, OnExit;
+
+    private int cost;
+    [SerializeField] TextMeshProUGUI texteCout;
+    [SerializeField] TextMeshProUGUI unit;
+
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    private void Start()
+    {
+        cost = GlobalsVariable.prices[unit.text];
+        texteCout.text = cost.ToString();
+    }
+
+    public void StartPlacing()
+    {
+        if (GlobalsVariable.money < cost)
+        {
+            return;
+        }
+        else
+        {
+            Debug.Log("I'm *in");
+            GlobalsVariable.Pay(cost);
+            //Mask.SetActive(true);
+            OnClicked += PlaceUnit;
+            OnExit += StopPlacing;
+        }
+    }
+
+    void PlaceUnit()
+    {
+        Vector3 mousePos = unitPlacement.MapPosition();
+        GameObject go = Instantiate(unitPrefab);
+        go.transform.position = mousePos;
+
+    }
+
+    public void StopPlacing()
+    {
+        //Mask.SetActive(false);
+        OnClicked -= PlaceUnit;
+        OnExit -= StopPlacing;
+    }
+
+    private void Update()
+    {
+        if (Input.GetMouseButtonDown(0))
+        {
+            OnClicked?.Invoke();
+        }
+
+        if (Input.GetMouseButtonDown(1))
+        {
+            OnExit?.Invoke();
+        }
+    }
+}