maint: added livewatch asset

Assets/Plugins/LiveWatchLite/TowerDefenceDemo/Scripts/Mob/MobHealthBar.cs

@@ -0,0 +1,40 @@
+using System;
+using UnityEngine;
+
+namespace Ingvar.LiveWatch.TowerDefenceDemo
+{
+    public class MobHealthBar : MonoBehaviour
+    {
+        [SerializeField] private MobMain mob;
+        [SerializeField] private Transform bar;
+
+        private Camera _mainCamera;
+
+        private void Awake()
+        {
+            _mainCamera = Camera.main;
+        }
+
+        private void OnEnable()
+        {
+            mob.Health.HealthChanged += RefreshBar;
+            RefreshBar();
+        }
+
+        private void OnDisable()
+        {
+            mob.Health.HealthChanged -= RefreshBar;
+        }
+
+        private void LateUpdate()
+        {
+            transform.rotation = _mainCamera.transform.rotation;
+        }
+
+        private void RefreshBar()
+        {
+            var progress = (float)mob.Health.CurrentHealth / mob.Health.MaxHealth;
+            bar.localScale = new Vector3(progress, bar.localScale.y, bar.localScale.z);
+        }
+    }
+}