Updated enemy controller

game/controllers/enemy_controller.gd

@@ -9,6 +9,9 @@ signal shoot()
 @export var ship: AbstractEnemyShip
 
 
+const FREE_FLIGHT_DIST = 50
+
+
 var target_position : Vector2
 var direction : Vector2
 
@@ -24,4 +27,21 @@ func _on_direction_timer_timeout() -> void:
 
 
 func get_acceleration_direction() -> Vector2:
-	return (target_position - ship.position).normalized()
+	var distance := ship.position.distance_to(target_position)
+	
+	if distance < FREE_FLIGHT_DIST:
+		return Vector2.ZERO
+	
+	var direction_to_target := (target_position - ship.position).normalized()
+	var speed_to_target := ship.velocity.dot(direction_to_target)
+	
+	var slow_down_distance := speed_to_target/ship.acceleration * speed_to_target
+	
+	var speed_coef := distance / (slow_down_distance + FREE_FLIGHT_DIST)
+	
+	var target_speed := ship.max_speed * clampf(speed_coef, 0.0, 1.0)
+	var target_velocity := direction_to_target * target_speed
+	
+	var delta_velocity := target_velocity - ship.velocity
+	
+	return direction_to_target * ship.max_speed/delta_velocity.length()

game/entities/ships/enemies/heavy/heavy_enemy_ship.tscn

@@ -31,3 +31,6 @@ max_hull = 200
 [node name="HeathBar" parent="." index="3"]
 offset_top = 30.0
 offset_bottom = 30.0
+
+[node name="VisibleOnScreenNotifier2D" parent="." index="5"]
+rect = Rect2(-29, -21, 58, 42)

game/entities/ships/enemies/medium/medium_enemy_ship.tscn

@@ -30,3 +30,6 @@ max_hull = 100
 [node name="HeathBar" parent="." index="3"]
 offset_top = 30.0
 offset_bottom = 30.0
+
+[node name="VisibleOnScreenNotifier2D" parent="." index="5"]
+rect = Rect2(-13, -21, 26, 42)

game/entities/ships/enemies/small/small_enemy_ship.tscn

@@ -30,3 +30,6 @@ max_hull = 50
 [node name="HeathBar" parent="." index="3"]
 offset_top = 14.0
 offset_bottom = 14.0
+
+[node name="VisibleOnScreenNotifier2D" parent="." index="5"]
+rect = Rect2(-13, -5, 26, 10)

game/entities/weapons/launcher/launcher_projectile.gd

@@ -45,6 +45,10 @@ func _apply_homing_guidance(delta: float) -> void:
 
 
 func _update_sprite(velocity: Vector2) -> void:
+	if velocity.is_zero_approx():
+		sprites[0].show()
+		return
+	
 	var sector := TAU / sprites.size()
 	var angle := velocity.angle()
 	var bisector := angle + sector * 0.5

game/passage.gd

@@ -15,16 +15,16 @@ func _ready() -> void:
 
 func _create_player() -> void:
 	var player : PlayerShip = PLAYER.instantiate()
-	add_child(player)
 	player.position = Vector2(100, 100)
 	player.destroyed.connect(_create_player, CONNECT_DEFERRED)
+	add_child(player)
 
 
 func _create_random_enemy() -> void:
 	const ENEMIES := [ SMALL_ENEMY, MEDIUM_ENEMY, HEAVY_ENEMY ]
 	
 	var enemy : AbstractEnemyShip = ENEMIES.pick_random().instantiate()
-	add_child(enemy)
 	enemy.position = Vector2(750, randi_range(0, 360))
-	enemy.controller.target_position = Vector2(550, 180)
 	enemy.destroyed.connect(_create_random_enemy, CONNECT_DEFERRED)
+	add_child(enemy)
+	enemy.controller.target_position = Vector2(550, 180)