fix physics navmesh forgot file oupsse

forgot this file oupsee

Assets/Scripts/MovementHandler.cs

@@ -1,21 +1,26 @@
+using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using UnityEditor.ProjectWindowCallback;
 using UnityEngine;
 using UnityEngine.AI;
+using UnityEngine.InputSystem.iOS;
 
 [RequireComponent(typeof(Unit))]
+[RequireComponent(typeof(Rigidbody))]
 public class MovementHandler : MonoBehaviour
 {
     [SerializeField] private float speed;
     [SerializeField] private NavMeshAgent agent;
-    
     [SerializeField] private Transform defaultMoveTarget;
     
     private Unit _unit;
+    private Rigidbody _rigidbody;
 
     void Awake()
     {
         _unit = GetComponent<Unit>();
+        _rigidbody = GetComponent<Rigidbody>();
     }
 
     public void ChangeSpeed(float newSpeed)
@@ -35,7 +40,7 @@ public class MovementHandler : MonoBehaviour
     
     public void MoveTowards(Vector3 destination)
     {
-        agent.SetDestination(destination);
+        if (agent.enabled) agent.SetDestination(destination);
     }
 
     public void MoveTowardsNearest()
@@ -46,12 +51,20 @@ public class MovementHandler : MonoBehaviour
     Unit FindNearestEnemy()
     {
         List<Unit> enemies = _unit.IsTeamA ? GlobalsVariable.AliveUnitsTeamB : GlobalsVariable.AliveUnitsTeamA;
-        return enemies
-            .Aggregate((nearest, current) =>
-                (current.transform.position - transform.position).sqrMagnitude <
-                (nearest.transform.position - transform.position).sqrMagnitude
-                    ? current
-                    : nearest);
+        
+        Unit closestUnit = null;
+        float closestDistance = float.MaxValue;
+        foreach (Unit enemy in enemies)
+        {
+            float distanceToEnemy = (enemy.transform.position - transform.position).sqrMagnitude;
+            if (distanceToEnemy < closestDistance)
+            {
+                closestUnit = enemy;
+                closestDistance = distanceToEnemy;
+            }
+        }
+
+        return closestUnit;
     }
     
     void Update()
@@ -62,4 +75,30 @@ public class MovementHandler : MonoBehaviour
             MoveTowardsNearest();
         }
     }
+
+    public IEnumerator TakeImpulse(Vector3 impulse)
+    {
+        // Unity navmesh, can't handle physics (it rewrite velocity). So we deactivate it when applying force.
+        agent.enabled = false;
+        _rigidbody.AddForce(impulse, ForceMode.Impulse);
+        yield return new WaitForSeconds(0.5f);
+
+        float noSurfaceTime = 0.0f;
+        
+        // Make sure to be on the navmesh surface before reactivating agent
+        while (_rigidbody != null && !NavMesh.SamplePosition(_rigidbody.position, out _, 1.0f, NavMesh.AllAreas))
+        {
+            yield return new WaitForSeconds(0.5f);
+            noSurfaceTime += 0.5f;
+            
+            // Die if exited navMesh for to long
+            if (noSurfaceTime > 6.0f)
+            {
+                _unit.Health.Death();
+                yield break;
+            }
+            
+        }
+        if (agent != null) agent.enabled = true;
+    }
 }