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Assets/_Scripts/Combat/Enemy.cs

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+using OTG.Lab06.Core;
+using UnityEngine;
+
+namespace OTG.Lab06.Combat
+{
+    public sealed class Enemy : MonoBehaviour, IDamageable
+    {
+        [SerializeField] private float health = 80f;
+        [SerializeField] private GameObject deathEffectPrefab;
+
+        private bool isAlive = true;
+
+        public Transform Transform => transform;
+        public bool IsAlive => isAlive;
+
+        public void TakeDamage(float amount)
+        {
+            if (!isAlive)
+            {
+                return;
+            }
+
+            health -= Mathf.Max(0f, amount);
+            FloatingDamageManager.Show(amount, transform.position + Vector3.up * 2.1f);
+
+            if (health <= 0f)
+            {
+                Die();
+            }
+        }
+
+        private void Die()
+        {
+            isAlive = false;
+            if (deathEffectPrefab != null)
+            {
+                Instantiate(deathEffectPrefab, transform.position + Vector3.up * 0.6f, Quaternion.identity);
+            }
+
+            Destroy(gameObject, 0.05f);
+        }
+    }
+}

Assets/_Scripts/Combat/Enemy.cs.meta

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Assets/_Scripts/Combat/FloatingDamage.cs

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+using UnityEngine;
+using UnityEngine.UI;
+
+namespace OTG.Lab06.Combat
+{
+    public sealed class FloatingDamage : MonoBehaviour
+    {
+        [SerializeField] private Text label;
+        [SerializeField] private float lifetime = 1.1f;
+        [SerializeField] private float riseSpeed = 1.2f;
+
+        private float remaining;
+
+        public void Initialize(float amount)
+        {
+            if (label == null)
+            {
+                label = GetComponentInChildren<Text>();
+            }
+
+            label.text = Mathf.RoundToInt(amount).ToString();
+            remaining = lifetime;
+        }
+
+        private void Update()
+        {
+            transform.position += Vector3.up * (riseSpeed * Time.deltaTime);
+            if (Camera.main != null)
+            {
+                transform.rotation = Quaternion.LookRotation(transform.position - Camera.main.transform.position, Vector3.up);
+            }
+
+            remaining -= Time.deltaTime;
+            float alpha = Mathf.Clamp01(remaining / lifetime);
+            if (label != null)
+            {
+                Color color = label.color;
+                color.a = alpha;
+                label.color = color;
+            }
+
+            if (remaining <= 0f)
+            {
+                Destroy(gameObject);
+            }
+        }
+    }
+}

Assets/_Scripts/Combat/FloatingDamage.cs.meta

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Assets/_Scripts/Combat/FloatingDamageManager.cs

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+using UnityEngine;
+
+namespace OTG.Lab06.Combat
+{
+    public sealed class FloatingDamageManager : MonoBehaviour
+    {
+        private static FloatingDamageManager instance;
+
+        [SerializeField] private FloatingDamage floatingDamagePrefab;
+
+        private void Awake()
+        {
+            instance = this;
+        }
+
+        public static void Show(float amount, Vector3 position)
+        {
+            if (instance == null || instance.floatingDamagePrefab == null)
+            {
+                return;
+            }
+
+            FloatingDamage damage = Instantiate(instance.floatingDamagePrefab, position, Quaternion.identity);
+            damage.Initialize(amount);
+        }
+    }
+}

Assets/_Scripts/Combat/FloatingDamageManager.cs.meta

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