add train moving logic

Assets/Scripts/Train.cs

@@ -0,0 +1,37 @@
+using System.Collections;
+using System.Collections.Generic;
+
+using DG.Tweening;
+using UnityEngine;
+
+public class Train : MonoBehaviour
+{
+    public TrainType type;
+    private LocomotionHandler locomotionHandler;
+
+    void OnEnable()
+    {
+        if(locomotionHandler == null)
+            locomotionHandler = FindObjectOfType<LocomotionHandler>();
+
+        var startPosition = locomotionHandler.pullUpPositionBefore;
+        var speed = locomotionHandler.trainSpeed;
+
+        transform.localPosition = new Vector3(transform.localPosition.x,
+            transform.localPosition.y,
+            startPosition);
+
+        transform.DOLocalMoveZ(0, speed)
+            .SetEase(Ease.OutSine);
+    }
+
+    public void Hide()
+    {
+        var endPosition = locomotionHandler.pullUpPositionAfter;
+        var speed = locomotionHandler.trainSpeed;
+
+        transform.DOLocalMoveZ(endPosition, speed)
+            .SetEase(Ease.InSine)
+            .OnComplete(() => gameObject.SetActive(false));
+    }
+}