Added enemy movement randomization

game/controllers/enemy_swamp_controller.gd

@@ -0,0 +1,39 @@
+class_name EnemySwampController
+extends Node
+
+
+@export var passage : Passage
+
+
+const SMALL_ENEMY = preload("res://game/entities/ships/enemies/small/small_enemy_ship.tscn")
+const MEDIUM_ENEMY = preload("res://game/entities/ships/enemies/medium/medium_enemy_ship.tscn")
+const HEAVY_ENEMY = preload("res://game/entities/ships/enemies/heavy/heavy_enemy_ship.tscn")
+
+const ENEMY_TYPES := [ SMALL_ENEMY, MEDIUM_ENEMY, HEAVY_ENEMY ]
+
+
+@onready var enemy_update_timer : Timer = $EnemyUpdateTimer
+
+
+func create_enemy() -> void:
+	var enemy : AbstractEnemyShip = ENEMY_TYPES.pick_random().instantiate()
+	enemy.position = Vector2(750, randi_range(0, 360))
+	passage.add_child(enemy)
+	
+	_update_enemy.call_deferred(enemy)
+
+
+func _on_enemy_update_timer_timeout() -> void:
+	enemy_update_timer.start(randi_range(3, 9))
+	
+	var enemies := get_tree().get_nodes_in_group("enemies")
+	if enemies.is_empty(): return
+	
+	var enemy : Node = enemies.pick_random()
+	if not enemy is AbstractEnemyShip: return
+		
+	_update_enemy(enemy)
+
+
+func _update_enemy(enemy: AbstractEnemyShip) -> void:
+	enemy.controller.target_position = Vector2(randi_range(300, 600), randi_range(30, 330))

game/controllers/enemy_swamp_controller.gd.uid

@@ -0,0 +1 @@
+uid://drxv4egqcamtw

game/controllers/enemy_swamp_controller.tscn

@@ -0,0 +1,12 @@
+[gd_scene load_steps=2 format=3 uid="uid://cpn5x0ijgl7ei"]
+
+[ext_resource type="Script" uid="uid://drxv4egqcamtw" path="res://game/controllers/enemy_swamp_controller.gd" id="1_ol8cy"]
+
+[node name="EnemySwampController" type="Node"]
+script = ExtResource("1_ol8cy")
+
+[node name="EnemyUpdateTimer" type="Timer" parent="."]
+one_shot = true
+autostart = true
+
+[connection signal="timeout" from="EnemyUpdateTimer" to="." method="_on_enemy_update_timer_timeout"]

game/passage.gd

@@ -1,16 +1,16 @@
+class_name Passage
 extends Node2D
 
 
-const SMALL_ENEMY = preload("res://game/entities/ships/enemies/small/small_enemy_ship.tscn")
-const MEDIUM_ENEMY = preload("res://game/entities/ships/enemies/medium/medium_enemy_ship.tscn")
-const HEAVY_ENEMY = preload("res://game/entities/ships/enemies/heavy/heavy_enemy_ship.tscn")
-
 const PLAYER := preload("res://game/entities/ships/player/player_ship.tscn")
 
 
+@onready var enemy_swamp_controller : EnemySwampController = $EnemySwampController
+@onready var enemy_timer : Timer = $EnemyTimer
+
+
 func _ready() -> void:
 	_create_player()
-	_create_random_enemy()
 
 
 func _create_player() -> void:
@@ -20,11 +20,7 @@ func _create_player() -> void:
 	add_child(player)
 
 
-func _create_random_enemy() -> void:
+func _on_enemy_timer_timeout() -> void:
-	const ENEMIES := [ SMALL_ENEMY, MEDIUM_ENEMY, HEAVY_ENEMY ]
+	enemy_swamp_controller.create_enemy()
 	
-	var enemy : AbstractEnemyShip = ENEMIES.pick_random().instantiate()
+	enemy_timer.start(randi_range(3, 9))
-	enemy.position = Vector2(750, randi_range(0, 360))
-	enemy.destroyed.connect(_create_random_enemy, CONNECT_DEFERRED)
-	add_child(enemy)
-	enemy.controller.target_position = Vector2(550, 180)

game/passage.tscn

@@ -1,6 +1,7 @@
-[gd_scene load_steps=3 format=3 uid="uid://dgc0087kvarx6"]
+[gd_scene load_steps=4 format=3 uid="uid://dgc0087kvarx6"]
 
 [ext_resource type="Script" uid="uid://c6gpm3edyr4nu" path="res://game/passage.gd" id="1_ltkyg"]
+[ext_resource type="PackedScene" uid="uid://cpn5x0ijgl7ei" path="res://game/controllers/enemy_swamp_controller.tscn" id="2_72vqi"]
 
 [sub_resource type="WorldBoundaryShape2D" id="WorldBoundaryShape2D_ltkyg"]
 
@@ -32,3 +33,13 @@ position = Vector2(640, 180)
 rotation = -1.5707964
 shape = SubResource("WorldBoundaryShape2D_ltkyg")
 one_way_collision = true
+
+[node name="EnemySwampController" parent="." node_paths=PackedStringArray("passage") instance=ExtResource("2_72vqi")]
+passage = NodePath("..")
+
+[node name="EnemyTimer" type="Timer" parent="."]
+wait_time = 10.0
+one_shot = true
+autostart = true
+
+[connection signal="timeout" from="EnemyTimer" to="." method="_on_enemy_timer_timeout"]