riversong code showcase

Source/Riversong/Game/World/RawResources/TreeFallAnimation.cs

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+using Cysharp.Threading.Tasks;
+using UnityEngine;
+
+namespace DanieleMarotta.RiversongCodeShowcase
+{
+    public class TreeFallAnimation : MonoBehaviour, IDestroyRawResourceAnimation
+    {
+        [SerializeField]
+        private float _fallDelay;
+
+        [SerializeField]
+        private float _fallDuration = 1;
+
+        [SerializeField]
+        private AnimationCurve _fallRotationCurve = AnimationCurve.Linear(0, 0, 1, 1);
+
+        [SerializeField]
+        private float _sinkDelay = 0.5f;
+
+        [SerializeField]
+        private float _sinkDepth = 1;
+
+        [SerializeField]
+        private float _sinkSpeed = 1;
+
+        public async UniTask PlayAsync()
+        {
+            await FallAsync();
+            await SinkAsync();
+        }
+
+        private async UniTask FallAsync()
+        {
+            await UniTask.WaitForSeconds(_fallDelay);
+
+            var axis = Quaternion.Euler(0, Random.value * 360, 0) * Vector3.forward;
+
+            var initialRotation = transform.rotation;
+            var finalRotation = initialRotation * Quaternion.AngleAxis(90, axis);
+
+            var t = 0f;
+            while (t < 1)
+            {
+                t += Time.deltaTime / _fallDuration;
+
+                transform.rotation = Quaternion.Lerp(initialRotation, finalRotation, _fallRotationCurve.Evaluate(t));
+
+                await UniTask.NextFrame();
+            }
+
+            transform.rotation = finalRotation;
+        }
+
+        private async UniTask SinkAsync()
+        {
+            await UniTask.WaitForSeconds(_sinkDelay);
+
+            var initialY = transform.position.y;
+            var finalY = initialY - _sinkDepth;
+
+            while (transform.position.y > finalY)
+            {
+                transform.position += Vector3.down * _sinkSpeed * Time.deltaTime;
+
+                await UniTask.NextFrame();
+            }
+
+            transform.position = new Vector3(transform.position.x, finalY, transform.position.z);
+        }
+    }
+}