Added ennemy

Added new textures
Fixed collision issues (Not having a RigidBody ...)

Assets/Scripts/EnemyCharacter.cs

@@ -1,18 +1,30 @@
-using System.Collections;
+using System;
+using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
-public class EnemyCharacter : MonoBehaviour
+public class EnemyCharacter : AbstractCharacter
 {
-    // Start is called before the first frame update
-    void Start()
+    public override void Move(Vector2 movementDirection)
     {
-        
+        _mover.Direction = movementDirection;
     }
 
-    // Update is called once per frame
-    void Update()
+    public override void Shoot()
     {
-        
+        // Always shoot
+        _shooter.Shoot(_shooter.EnergyCost+1);
+    }
+
+    // TODO : Gain points, maybe through Events?
+    protected override void Death()
+    {
+        Destroy(gameObject);
+    }
+
+    // Don't gain points
+    private void OnBecameInvisible()
+    {
+        Destroy(gameObject);
     }
 }

Assets/Scripts/RightLeftAI.cs

@@ -0,0 +1,20 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class RightLeftAI : MonoBehaviour
+{
+    private AbstractCharacter _character;
+
+    void Start()
+    {
+        _character = GetComponentInParent<AbstractCharacter>();
+        _character.Move(Vector2.left);
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        _character.Shoot();
+    }
+}

Assets/Scripts/RightLeftAI.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 46c6580a49fa016aea4bf32400397f7e
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 100
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: