How to make a enemy start chasing you only after you get into a certain radius?

[Sava Kujundžić]

So, I am making a simple 3rd person game and I made enemies chase me. But I want them to chase only when I get near them. How would I do that?

[altria]

There are several ways to approach it. The easiest way is probably, before your enemy doing the chase do distance check. For example

extends RigidBody3D

const CHASE_DISTANCE = 10  # Adjust this value as needed

func _process(delta):
	var distance_to_player = position.distance_to(player.position)
	if distance_to_player < CHASE_DISTANCE:
        # Add your chasing logic here

---

Another approach is to use an Area3D node to detect when the player enters a certain area around the enemy. Something along these line:

1. Create an Area3D Node:
   Add an Area3D node to your enemy scene. This node will act as the detection zone for your enemy.

2. Adjust the Shape:
   With the Area3D node selected, add CollisionShape3D, you can adjust the shape and size of the detection zone using the "Shape" property. For example, you can use a SphereShape to create a spherical detection zone.

3. Implement Detection Logic:
   Add logic that can handle the detection of the player entering and exiting the detection zone. Here's an example script using GDScript to handle the player detection using an Area3D:

func _on_area_3d_body_entered(body: Node3D) -> void:
	if body == player:
		chasing = true

func _on_area_3d_body_exited(body: Node3D) -> void:
	if body == player:
		chasing = false

func _process(delta):
	if chasing:
		# Add your chasing logic here