Added Enemy Return Script Functionality

Unity-Files/Assets/Examples/Defender/Enemy Ship.prefab

@@ -11,11 +11,10 @@ GameObject:
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+  - component: {fileID: 114000011533140650}
+  - component: {fileID: 114000012184921828}
   - component: {fileID: -7020474658778450613}
   m_Layer: 0
   m_Name: Enemy Ship
@@ -81,7 +80,7 @@ SpriteRenderer:
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   m_Color: {r: 1, g: 1, b: 1, a: 1}
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-  m_FlipY: 0
+  m_FlipY: 1
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   m_AdaptiveModeThreshold: 0.5
@@ -101,78 +100,15 @@ Rigidbody2D:
   m_Simulated: 1
   m_UseFullKinematicContacts: 0
   m_UseAutoMass: 1
-  m_Mass: 1.0318747
+  m_Mass: 1
   m_LinearDrag: 4
   m_AngularDrag: 0.05
-  m_GravityScale: 1
+  m_GravityScale: 0
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   m_Interpolate: 0
   m_SleepingMode: 1
   m_CollisionDetection: 0
   m_Constraints: 0
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 --- !u!60 &4441117583140911826
 PolygonCollider2D:
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@@ -183,7 +119,7 @@ PolygonCollider2D:
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   m_Density: 1
   m_Material: {fileID: 0}
-  m_IsTrigger: 0
+  m_IsTrigger: 1
   m_UsedByEffector: 0
   m_UsedByComposite: 0
   m_Offset: {x: 0, y: 0}
@@ -225,6 +161,55 @@ PolygonCollider2D:
       - {x: -0.044999998, y: 0.42499998}
       - {x: -0.065, y: 0.375}
       - {x: -0.055, y: 0.375}
+--- !u!114 &-2225950841401146330
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+  m_CorrespondingSourceObject: {fileID: 0}
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+  m_Name: 
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+  normalSpeed: 5
+  returnSpeed: 5
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 SortingGroup:
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Unity-Files/Assets/Scripts/Movement/EnemyReturn.cs

@@ -5,6 +5,15 @@ using UnityEngine;
 [RequireComponent(typeof(Rigidbody2D))]
 public class EnemyReturn : Physics2DObject
 {
+    [Header("Movement Speed")]
+    [Tooltip("The amount of speed in which the boat moves towards the castle")]
+    public float normalSpeed = 5f;
+    [Tooltip("The amount of speed in which the boat moves away from the castle")]
+    public float returnSpeed = 5f;
+
+    private bool isReturning = false;
+    private Vector2 movement = new Vector2(0f, 0f);
+
     // Start is called before the first frame update
     void Start()
     {
@@ -14,6 +23,34 @@ public class EnemyReturn : Physics2DObject
     // Update is called once per frame
     void Update()
     {
+        if (isReturning)
+        {
+            movement = new Vector2(0f, returnSpeed);
+        }
+        else
+        {
+            movement = new Vector2(0f, -normalSpeed);
+        }
+    }
 
+    //FixedUpdate is called every frame when the physics are calculated
+    void FixedUpdate()
+    {
+        rigidbody2D.AddForce(movement);
+    }
+    void OnTriggerEnter2D(Collider2D otherCollider)
+    {
+        string playerTag = otherCollider.gameObject.tag;
+        if (playerTag == "Player" || playerTag == "Player2")
+        {
+            HealthSystemAttribute healthScript = otherCollider.gameObject.GetComponent<HealthSystemAttribute>();
+            if (healthScript != null)
+            {
+                // subtract health from the player
+                healthScript.ModifyHealth(-1);
+            }
+            this.GetComponent<SpriteRenderer>().flipY = false;
+            isReturning = true;
+        }
     }
 }