적군 구현

Assets/Scripts/Enemy.cs

@@ -0,0 +1,42 @@
+using System;
+using UnityEngine;
+
+public class Enemy: LivingEntity
+{   
+    private SpriteRenderer _spriteRenderer;
+    private GameObject _player;
+    private Player _playerScript;
+
+    public float speed = 20f;
+    public int attackDamage = 1;
+
+    private void OnCollisionEnter2D(Collision2D other)
+    {
+        if (other.gameObject.CompareTag("Player"))
+        {
+            _playerScript.Damage(attackDamage);
+        }
+    }
+
+    private void Start()
+    {
+        _player = GameObject.FindGameObjectsWithTag("Player")[0];
+        _playerScript = _player.GetComponent<Player>();
+        _spriteRenderer = GetComponent<SpriteRenderer>();
+    }
+
+    private void Update()
+    {
+        Vector2 direction = transform.position - _player.transform.position;
+        var rad2Deg = Mathf.Atan2(direction.y, direction.x) * Mathf.Rad2Deg;
+        transform.rotation = Quaternion.Euler(0, 0, rad2Deg + 180);
+        
+        transform.Translate(direction.normalized * (Time.deltaTime * speed * -1));
+    }
+
+    protected override void OnDamaged(float damage)
+    {
+        var spriteRenderer = _spriteRenderer;
+        
+    }
+}

Assets/Scripts/Enemy.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 625c2fb5b495454296dab3fbfa13b65c
+timeCreated: 1776450504

Assets/Scripts/LivingEntity.cs

@@ -1,11 +1,14 @@
 using System;
 using UnityEngine;
 
-public class LivingEntity : MonoBehaviour
+public abstract class LivingEntity : MonoBehaviour
 {
     public float health;
+
+    protected abstract void OnDamaged(float damage);
     public void Damage(float amount)
     {
+        OnDamaged(amount);
         health -= amount;
         if (health <= 0)
         {
@@ -16,8 +19,7 @@ public class LivingEntity : MonoBehaviour
     {
         if (other.gameObject.layer == LayerMask.NameToLayer("Bullet"))
         {
-            Destroy(gameObject);
-            other.gameObject.SetActive(false);
+            Damage(5);
         }
     }
 }

Assets/Scripts/Player.cs

@@ -1,9 +1,10 @@
 using System;
+using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.InputSystem;
 
-public class Player : MonoBehaviour
+public class Player : LivingEntity
 {
     private Camera _camera;
     private Queue<GameObject> _bulletPool = new Queue<GameObject>();
@@ -17,9 +18,12 @@ public class Player : MonoBehaviour
     public float fireRate = 0.1f; // 총알 발사 간격 (0.1초마다 1발)
     private float _fireTimer;     // 발사 타이머
     private bool _isShooting;     // 발사 버튼을 누르고 있는지 여부
+    private SpriteRenderer _spriteRenderer;
 
-    void Start()
+    private void Start()
     {
+        health = 20.0f;
+        _spriteRenderer = GetComponent<SpriteRenderer>();
         _camera = Camera.main;
         
         // 처음 클릭 시 즉시 발사되도록 타이머 초기화
@@ -40,7 +44,7 @@ public class Player : MonoBehaviour
     private void FixedUpdate()
     {
         var readValue = InputManager.InputSystem.Player.Move.ReadValue<Vector2>();
-        var moveDir = new Vector3(readValue.x, readValue.y, 0);
+        var moveDir = new Vector3(readValue.x, readValue.y, 0).normalized;
         transform.position += moveDir * (Time.fixedDeltaTime * moveSpeed);
         backGround.transform.position = transform.position;
     }
@@ -111,4 +115,21 @@ public class Player : MonoBehaviour
             InputManager.InputSystem.Player.Click.canceled -= OnShootCanceled;
         }
     }
+
+    protected override void OnDamaged(float damage)
+    {
+        StartCoroutine(DamageEffect());
+    }
+
+    private IEnumerator DamageEffect()
+    {
+        var originalColor = _spriteRenderer.color;
+        var alphaEdited = _spriteRenderer.color;
+        alphaEdited.a = 0.5f;
+        _spriteRenderer.color = alphaEdited;
+        moveSpeed = 50;
+        yield return new WaitForSeconds(0.5f); // 0.1초 동안 유지
+        _spriteRenderer.color = originalColor; // 원래 색상으로 복원
+        moveSpeed = 20;
+    }
 }