Initial Commit

Assets/Scripts/EnemyController.cs

@@ -0,0 +1,92 @@
+using UnityEngine;
+using UnityEngine.AI;
+
+public class EnemyController : MonoBehaviour
+{
+    public float moveSpeed;
+    public float targetRange;
+    public float attackRange;
+    public float attackSpeed;
+    public float attackDamage;
+    public float health;
+    public Transform defaultTarget;
+    public Transform target;
+    private NavMeshAgent navMeshAgent;
+    private Animator animator;
+    private SphereCollider targetCollider;
+    private float attackCooldown;
+
+    void Awake()
+    {
+        navMeshAgent = GetComponent<NavMeshAgent>();
+        animator = GetComponentInChildren<Animator>();
+        targetCollider = GetComponentInChildren<SphereCollider>();
+        navMeshAgent.speed = moveSpeed;
+        targetCollider.radius = targetRange;
+    }
+
+    void Start()
+    {
+        MoveToDefault();
+    }
+
+    void Update()
+    {
+        if(target != null && !target.gameObject.activeInHierarchy)
+        {
+            target = null;
+            MoveToDefault();
+        }
+
+        if(target != null)
+            Attack();
+
+        animator.SetFloat("Speed", navMeshAgent.velocity.magnitude);
+    }
+
+    private void OnTriggerEnter(Collider other)
+    {
+        if(target != null) return;
+        if(!other.CompareTag("Gate")) return;
+
+        AttackPoint attackPoint = other.GetComponentInChildren<AttackPoint>();
+        if(attackPoint != null)
+        {
+            target = attackPoint.transform;
+            navMeshAgent.stoppingDistance = attackRange;
+            navMeshAgent.destination = attackPoint.transform.position;
+        }
+    }
+
+    private void MoveToDefault()
+    {
+        navMeshAgent.stoppingDistance = 0f;
+        if(defaultTarget != null)
+            navMeshAgent.destination = defaultTarget.position;
+    }
+
+    private void Attack()
+    {
+        attackCooldown -= Time.deltaTime;
+        if(Vector3.Distance(target.position, transform.position) < attackRange && attackCooldown <= 0f)
+        {
+            transform.LookAt(target.position);
+            animator.SetTrigger("Attack");
+            attackCooldown = 1f / attackSpeed;
+            target.GetComponent<AttackPoint>().AddAttacker();
+            target.GetComponentInParent<Building>().TakeDamage(attackDamage);
+        }
+    }
+
+    private void OnDrawGizmosSelected()
+    {
+        // Target range — green if priority target is assigned, red if not
+        Gizmos.color = target != null ? Color.green : Color.red;
+        Gizmos.DrawWireSphere(transform.position, targetRange);
+
+        // Attack range — green if target is within attack range, red if not
+        bool inAttackRange = target != null && Vector3.Distance(target.position, transform.position) < attackRange;
+        Gizmos.color = inAttackRange ? Color.green : Color.red;
+        Gizmos.DrawWireSphere(transform.position, attackRange);
+    }
+}