maint: added livewatch asset

Assets/Plugins/LiveWatchLite/TowerDefenceDemo/Scripts/Tower/WaveEffect.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections;
+using UnityEngine;
+using UnityEngine.Serialization;
+
+namespace Ingvar.LiveWatch.TowerDefenceDemo
+{
+    public class WaveEffect : MonoBehaviour
+    {
+        [SerializeField] private float _growDuration = 0.1f;
+        [SerializeField] private float _stayDuration = 0.1f;
+        [SerializeField] private Transform _wave;
+
+        private float _radius;
+        private Coroutine _effectRoutine;
+
+        private void OnEnable()
+        {
+            SetSizeRaw(0);
+        }
+
+        public void SetRadius(float radius)
+        {
+            _radius = radius;
+        }
+
+        public void Play()
+        {
+            SetSizeRaw(0);
+            
+            if (_effectRoutine != null)
+                StopCoroutine(_effectRoutine);
+
+            _effectRoutine = StartCoroutine(EffectPlaying());
+        }
+
+        private IEnumerator EffectPlaying()
+        {
+            SetSizeRaw(0);
+
+            var timer = _growDuration;
+
+            while (timer >= 0)
+            {
+                timer -= Time.deltaTime;
+                
+                var progress = 1 - timer / _growDuration;
+                SetSizeRaw(_radius * progress);
+
+                yield return null;
+            }
+
+            yield return new WaitForSeconds(_stayDuration);
+            
+            SetSizeRaw(0);
+        }
+
+        private void SetSizeRaw(float value)
+        {
+            _wave.localScale = value * Vector3.one;
+        }
+    }
+}