asdasd

Assets/FPS/Scripts/EnemyAI.cs

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+using System.Collections.Generic;
+using UnityEngine;
+
+public class EnemyAI : MonoBehaviour
+{
+    [Range(0, 100)] public float hp;
+    [Range(0, 100)] public float distanceToPlayer;
+    public bool isAttackReady;
+
+    public Node behaviorTreeRoot;
+
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        InitBehaviorTree();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if (behaviorTreeRoot != null)
+        {
+            behaviorTreeRoot.Evaluate();
+        }
+    }
+
+    void InitBehaviorTree()
+    {
+        var survivalSequences = new Sequence(new List<Node>
+        {
+            new TaskNode(CheckLowHealth),
+            new TaskNode(ActionFleeAndHeal)
+        });
+
+        var meleeSequences = new Sequence(new List<Node>
+        {
+            new TaskNode(CheckMeleeRange),
+            new TaskNode(ActionSmash)
+        });
+
+        var rangeSequence = new Sequence(new List<Node>
+        {
+            new TaskNode(CheckAttackRange), // khoang cach
+            new TaskNode(CheckAttackReady), // Mp
+            new TaskNode(ActionShoot) // tan cong
+        });
+
+        var chaseAction = new TaskNode(ActionChase);
+
+        behaviorTreeRoot = new Selector(new List<Node>
+        {
+            survivalSequences, // song sot
+            meleeSequences, // tan cong gan
+            rangeSequence, // tan cong xa
+            chaseAction // duoi theo
+        });
+    }
+
+    private NodeState ActionChase()
+    {
+        // logic
+        Debug.Log("Chasing the player...");
+        return NodeState.Running;
+    }
+
+    private NodeState ActionShoot()
+    {
+        Debug.Log("Shooting at the player...");
+        return NodeState.Running;
+    }
+
+    private NodeState CheckAttackReady()
+    {
+        Debug.Log("Checking if attack is ready...");
+        return NodeState.Failure;
+    }
+
+    private NodeState CheckAttackRange()
+    {
+        Debug.Log("Checking if player is in attack range...");
+        return NodeState.Failure;
+    }
+
+    private NodeState ActionSmash()
+    {
+        Debug.Log("Smashing the player...");
+        return NodeState.Success;
+    }
+
+    private NodeState CheckMeleeRange()
+    {
+        if(distanceToPlayer < 2f) return NodeState.Success;
+        return NodeState.Failure;
+    }
+
+    private NodeState ActionFleeAndHeal()
+    {
+        Debug.Log("Flee and heal the player...");
+        return NodeState.Success;
+    }
+
+
+    private NodeState CheckLowHealth()
+    {
+        if (hp < 30f) return NodeState.Success;
+        return NodeState.Failure;
+    }
+}