Add hit component and effects; update player and enemy scenes to integrate hit feedback

scripts/components/hit_component.gd

@@ -4,6 +4,8 @@ extends Node
 @export var sprite: Sprite2D
 @export var health_component: HealthComponent
 @export var hit_duration: float = 0.1
+@export var hit_fx: GPUParticles2D
+@export var flash_mode: bool = true
 
 
 func _ready() -> void:
@@ -15,26 +17,41 @@ func _ready() -> void:
 		printerr("No sprite assigned!")
 		return
 
-	if sprite.material:
+	if sprite.material and flash_mode:
 		sprite.material = sprite.material.duplicate()
 
 
 func activate() -> void:
+	if not flash_mode:
+		return
 	sprite.material.set_shader_parameter("enabled", true)
 
 
 func deactivate() -> void:
+	if not flash_mode:
+		return
 	sprite.material.set_shader_parameter("enabled", false)
 
 
-func on_health_change(delta: float, _total_health: float) -> void:
+func on_health_change(delta: float, total_health: float) -> void:
 	if delta < 0:
 		activate()
 		await get_tree().create_timer(hit_duration).timeout
 		deactivate()
 
+		if total_health > 0:
+			handle_hit_fx()
+
 
 func on_death() -> void:
 	activate()
 	await get_tree().create_timer(hit_duration).timeout
-	deactivate()
+	deactivate()
+
+
+func handle_hit_fx() -> void:
+	if not hit_fx:
+		return
+
+	hit_fx.restart()
+	hit_fx.emitting = true

scripts/components/homing_missile_motion.gd

@@ -7,9 +7,13 @@ extends Node
 @export var acceleration: float = 8.0
 @export var detection_area: Area2D
 @export var max_turn_rate: float = 180.0
+@export var wobble_strength := 5.0  # degrees
+@export var drag := 0.98
+@export var steering_lerp := 0.05   # low = sluggish
 
-var target: Node2D    = null
-var velocity: Vector2 = Vector2.ZERO
+var steering_direction: Vector2 = velocity.normalized()
+var target: Node2D              = null
+var velocity: Vector2           = Vector2.ZERO
 
 
 func _ready() -> void:
@@ -33,11 +37,19 @@ func _physics_process(delta: float) -> void:
 		root.position += velocity * delta
 		return
 
-	var to_target       := (target.global_position - root.global_position).normalized()
-	var angle_to_target := velocity.angle_to(to_target)
+	var to_target := (target.global_position - root.global_position).normalized()
+	steering_direction = steering_direction.lerp(to_target, steering_lerp)
+
+	var angle_to_target := velocity.angle_to(steering_direction)
 	var max_angle       := deg_to_rad(max_turn_rate) * delta
 	var clamped_angle   =  clamp(angle_to_target, - max_angle, max_angle)
-	velocity = velocity.rotated(clamped_angle).normalized() * velocity.length()
+
+	var wobble := deg_to_rad(randf_range(-wobble_strength, wobble_strength))
+	clamped_angle += wobble
+
+	velocity = velocity.rotated(clamped_angle)
+
+	velocity *= drag
 
 	var desired_speed = min(max_speed, velocity.length() + acceleration * delta)
 	velocity = velocity.normalized() * desired_speed

scripts/player.gd

@@ -91,4 +91,4 @@ func handle_direction(input_dir: float) -> Vector2:
 		return Vector2.RIGHT
 	elif input_dir < 0:
 		return Vector2.LEFT
-	return last_direction
+	return last_direction