extends Area3D

var current_players : Array[Node3D]
var current_target : Node3D
signal new_target


func _on_body_entered(body: Node3D) -> void:
	current_players.append(body)

func _on_body_exited(body: Node3D) -> void:
	current_players.erase(body)

func _physics_process(delta: float) -> void:
	var candidate : Node3D
	for body in current_players:
		if !candidate:
			candidate = body
		else:
			if global_position.distance_to(candidate.global_position) > global_position.distance_to(body.global_position):
				candidate = body
	if is_instance_valid(candidate):
		if candidate == current_target:
			return
		else:
			current_target = candidate
			new_target.emit(current_target)
	else:
		if is_instance_valid(current_target):
			current_target = null
			new_target.emit(current_target)