added coins

Assets/Code/Gameplay/Coin/Coin.cs

@@ -0,0 +1,31 @@
+using UnityEngine;
+using PrimeTween;
+
+namespace Code.Gameplay.Coin
+{
+    public class Coin : MonoBehaviour
+    {
+        public Vector3 rotationAngle = new(0, 360, 0);
+        public float rotationDuration = 10f;
+
+        public float amplitude = 0.5f;
+        public float cycleDuration = 2f;
+
+        private void Start()
+        {
+            Tween.LocalEulerAngles(transform, 
+                startValue: Vector3.zero, 
+                endValue: rotationAngle, 
+                duration: rotationDuration, 
+                cycles: -1, 
+                ease: Ease.Linear);
+
+            Tween.LocalPositionY(transform, 
+                endValue: transform.localPosition.y + amplitude, 
+                duration: cycleDuration / 2, 
+                cycles: -1, 
+                cycleMode: CycleMode.Yoyo, 
+                ease: Ease.InOutSine);
+        }
+    }
+}