game: tweak enemy movement

scenes/enemies/enemy_base.gd

@@ -5,7 +5,7 @@ extends CharacterBody2D
 @export var max_health: float = 10.0
 @export var default_contact_damage: float = 0.0
 @export var target_distance: float = 6.0
-@export var path_update_interval: float = 0.5
+@export var path_update_interval: float = 1.5
 
 @onready var target_cast: RayCast2D = $TargetCast
 @onready var animation_player: AnimationPlayer = $AnimationPlayer
@@ -48,14 +48,13 @@ func do_movement(delta: float) -> void:
 		return
 	if global_position.distance_to(target.global_position) < target_distance:
 		return
-	_path_update_timer -= delta
+	_path_update_timer -= delta + randf()
 	if _has_direct_path():
 		shape_cast_2d.enabled = false
 		_do_simple_movement()
 	else:
 		_do_nav_agent_movement()
 
-
 func _has_direct_path():
 	target_cast.target_position = to_local(target.global_position)
 	target_cast.enabled = true

scenes/enemies/enemy_base.tscn

@@ -56,7 +56,6 @@ shape = SubResource("CircleShape2D_satqt")
 
 [node name="TargetCast" type="RayCast2D" parent="." groups=["damagable", "enemy"]]
 enabled = false
-collision_mask = 3
 
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 libraries = {