Fixed detection

Assets/Design/Levels/WaveConfig_Creeper_Test.asset

@@ -0,0 +1,23 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!114 &11400000
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 0}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: eb0795e326609f0499365f5b65c2b5cd, type: 3}
+  m_Name: WaveConfig_Creeper_Test
+  m_EditorClassIdentifier: 
+  _constantSpawn:
+  - _enemy: {fileID: 80204295746100150, guid: 1be769d6ef642314b8846bed35e7297c, type: 3}
+    _count: 20
+  _nestedGroupSpawn:
+  - groupSpawn:
+    - _enemy: {fileID: 80204295746100150, guid: 2def22091e1ff0d43abe2797c18a2fda, type: 3}
+      _count: 2
+    triggerTime: 0.5
+  _gameDuration: 1

Assets/Design/Levels/WaveConfig_Creeper_Test.asset.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 660102a48ad7d2244ab404cfc1f6a573
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 11400000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Prefabs/Monsters/Creeper.prefab.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 2def22091e1ff0d43abe2797c18a2fda
+PrefabImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Opponent/Creeper.cs

@@ -0,0 +1,22 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Creeper : Opponent
+{
+    [SerializeField]
+    private GameObject[] creeplings;
+    [SerializeField]
+    private float creeplingsSpawnRange = 2f;
+
+    public override void Death()
+    {
+        for (int i = 0; i < creeplings.Length; i++)
+        {
+            float randomX = Random.Range(0f, creeplingsSpawnRange) + transform.position.x;
+            Vector3 spawnPosition = new Vector3(randomX, transform.position.y, transform.position.z);
+            Instantiate(creeplings[i], spawnPosition, Quaternion.identity);
+        }
+        base.Death();
+    }
+}

Assets/Scripts/Opponent/Creeper.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: f89e6964a347fce48a22f42c1c23416c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: