Dateien sortiert, Hintergrund angepasst, Platzierungslogik und Basis für Combat angelegt. Gewehr schießt und Gegner nehmen Schaden

Assets/Scripts/Ingame/Enemy.cs

@@ -0,0 +1,195 @@
+using UnityEngine;
+
+public class Enemy : MonoBehaviour, IMovementDirection
+{
+    [Header("Movement")]
+    [SerializeField]
+    private float moveSpeed = 0.5f;
+
+    [SerializeField]
+    private float targetReachedDistance = 0.1f;
+
+    private EnemyTargetManager targetManager;
+    private Transform currentTarget;
+
+    // Wird von CharacterRotation verwendet.
+    public Vector2 MovementDirection { get; private set; }
+
+    [Header("Health")]
+    [SerializeField]
+    private float maxHealth = 100f;
+
+    private float currentHealth;
+
+    public float CurrentHealth => currentHealth;
+
+    public bool IsDead { get; private set; }
+
+    private void Awake()
+    {
+        currentHealth = maxHealth;
+
+        targetManager =
+            FindFirstObjectByType<EnemyTargetManager>();
+
+        if (targetManager == null)
+        {
+            Debug.LogError(
+                "Enemy: Kein EnemyTargetManager gefunden!",
+                this
+            );
+        }
+    }
+
+    private void OnEnable()
+    {
+        if (targetManager != null)
+        {
+            targetManager.OnTargetsChanged +=
+                SelectClosestTarget;
+        }
+    }
+
+    private void OnDisable()
+    {
+        if (targetManager != null)
+        {
+            targetManager.OnTargetsChanged -=
+                SelectClosestTarget;
+        }
+    }
+
+    private void Start()
+    {
+        if (targetManager == null)
+            return;
+
+        SelectClosestTarget();
+    }
+
+    private void Update()
+    {
+        if (targetManager == null)
+            return;
+
+        // Kein aktuelles Ziel vorhanden.
+        if (currentTarget == null)
+        {
+            MovementDirection = Vector2.zero;
+
+            SelectClosestTarget();
+
+            return;
+        }
+
+        // Das aktuelle Ziel wurde deaktiviert.
+        if (!currentTarget.gameObject.activeInHierarchy)
+        {
+            SelectClosestTarget();
+
+            return;
+        }
+
+        MoveTowardsTarget();
+
+        // Ziel erreicht.
+        if (HasReachedTarget())
+        {
+            SelectClosestTarget();
+        }
+    }
+
+
+    // BEWEGUNGSLOGIK
+    //
+
+    private void SelectClosestTarget()
+    {
+        if (targetManager == null)
+            return;
+
+        currentTarget =
+            targetManager.GetClosestActiveTarget(
+                transform.position
+            );
+
+        if (currentTarget == null)
+        {
+            MovementDirection = Vector2.zero;
+        }
+    }
+
+    private void MoveTowardsTarget()
+    {
+        if (currentTarget == null)
+            return;
+
+        Vector3 direction =
+            currentTarget.position - transform.position;
+
+        MovementDirection = new Vector2(
+            direction.x,
+            direction.y
+        ).normalized;
+
+        transform.position = Vector3.MoveTowards(
+            transform.position,
+            currentTarget.position,
+            moveSpeed * Time.deltaTime
+        );
+    }
+
+    private bool HasReachedTarget()
+    {
+        if (currentTarget == null)
+            return false;
+
+        return Vector3.Distance(
+            transform.position,
+            currentTarget.position
+        ) <= targetReachedDistance;
+    }
+
+
+    // LEBENSLOGIK
+    //
+
+    public void TakeDamage(float damage)
+    {
+        if (IsDead || damage <= 0f)
+            return;
+
+        currentHealth -= damage;
+
+        Debug.Log(
+            gameObject.name +
+            " erhält " + damage +
+            " Schaden. HP: " +
+            currentHealth + "/" + maxHealth
+        );
+
+        if (currentHealth <= 0f)
+        {
+            Die();
+        }
+    }
+
+    private void Die()
+    {
+        if (IsDead)
+            return;
+
+        IsDead = true;
+
+        Debug.Log(
+            gameObject.name + " wurde besiegt!"
+        );
+
+        Destroy(gameObject);
+    }
+
+
+    // ANGRIFFSLOGIK (möglicherweise in anderem Skript)
+    //
+
+}