trails

unity/Assets/Scenes/SampleScene.unity

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 --- !u!95 &1588360796
 Animator:
@@ -1432,6 +1991,7 @@ Transform:
   m_LocalPosition: {x: 180, y: 154.9, z: 0}
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children:
+  - {fileID: 1011871363}
   - {fileID: 1779421299}
   - {fileID: 78464506}
   - {fileID: 577405912}
@@ -1698,7 +2258,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 629347650}
-  m_RootOrder: 2
+  m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1779421298
 GameObject:
@@ -1728,7 +2288,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1588360798}
-  m_RootOrder: 0
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &1794958513
 GameObject:
@@ -1837,7 +2397,7 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 480143055}
-  m_RootOrder: 0
+  m_RootOrder: 1
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
 --- !u!1 &2039228491
 GameObject:
@@ -2014,5 +2574,5 @@ Transform:
   m_LocalScale: {x: 1, y: 1, z: 1}
   m_Children: []
   m_Father: {fileID: 1208042752}
-  m_RootOrder: 1
+  m_RootOrder: 2
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}

unity/Assets/Scripts/DragonMovement.cs

@@ -17,6 +17,7 @@ public class DragonMovement : MonoBehaviour
     [SerializeField] GameObject _flash;
     [SerializeField] string _dragonName;
     [SerializeField] Color _color;
+    [SerializeField] TrailRenderer _trail;
 
     float _stunTime = 0f;
     float _debugCurSpeed;
@@ -97,6 +98,8 @@ public class DragonMovement : MonoBehaviour
     {
         _rigidbody = this.GetComponent<Rigidbody2D>();
         _animator = this.GetComponent<Animator>();
+        _trail.startColor = _color;
+        _trail.endColor = _color;
     }
 
     private void Update()
@@ -135,6 +138,11 @@ public class DragonMovement : MonoBehaviour
         }
     }
 
+    public void ClearTrail()
+    {
+        _trail.Clear();
+    }
+
     void FixedUpdate()
     {
         if (_flapTime > 0f && _stunTime < 0f)
@@ -164,10 +172,18 @@ public class DragonMovement : MonoBehaviour
         const float GLIDE_TIME = 0.6f;
         if (_flapTime < - GLIDE_TIME)
         {
+            if (_trail.enabled == false)
+            {
+                _trail.Clear();
+                _trail.enabled = true;
+            }
             _animator.Play("speedup");
             horizontalSpeed += (_flapTime + GLIDE_TIME) * -2f;
         }
-
+        else
+        {
+            _trail.enabled = false;
+        }
 
         /* //old cloud behavior
         if (_inCloud)

unity/Assets/Scripts/Wraparound.cs

@@ -11,6 +11,15 @@ public class Wraparound : MonoBehaviour
         
     }
 
+    void ClearTrail()
+    {
+        DragonMovement dragonMovement = GetComponent<DragonMovement>();
+        if (dragonMovement)
+        {
+            dragonMovement.ClearTrail();
+        }
+    }
+
     // Update is called once per frame
     void Update()
     {
@@ -19,11 +28,13 @@ public class Wraparound : MonoBehaviour
         if (this.transform.position.y < 0)
         {
             this.transform.position = new Vector3(transform.position.x, transform.position.y + SCREEN_HEIGHT, transform.position.z);
+            ClearTrail();
         }
 
         if (this.transform.position.y > SCREEN_HEIGHT)
         {
             this.transform.position = new Vector3(transform.position.x, transform.position.y - SCREEN_HEIGHT, transform.position.z);
+            ClearTrail();
         }
 
         if (_justVertical == false)