add sounds, add logo

scripts/Enemy.gd

@@ -405,6 +405,7 @@ func _take_hit(dmg: int) -> void:
 		_die()
 
 func _play_kick_blend() -> void:
+	SFX.kick_enemy(get_parent())
 	if anim_player != null and anim_player.has_animation("kick"):
 		anim_player.stop()
 		anim_player.play("kick")

scripts/KickSystem.gd

@@ -66,3 +66,4 @@ static func _execute_recipe(a: Node3D, b: Node3D, recipe: Dictionary) -> void:
 	parent.add_child(result)
 	result.global_position = pos
 	FX.merge_smoke(pos + Vector3(0, 0.3, 0), parent)
+	SFX.merge(parent)

scripts/Main.gd

@@ -246,6 +246,7 @@ func _spawn_player() -> void:
 # ─── Game flow ────────────────────────────────────────────────────────────────
 
 func _start_game() -> void:
+	SFX.start_ambient(self)
 	game_active = true
 	wave = 1
 	score = 0

scripts/MainMenu.gd

@@ -48,6 +48,25 @@ func _build_ui() -> void:
 
 	_build_settings_panel()
 	_build_difficulty_panel()
+	_add_studio_logo()
+
+func _add_studio_logo() -> void:
+	const PATH := "res://assets/studio_logo.png"
+	var logo := TextureRect.new()
+	if ResourceLoader.exists(PATH):
+		logo.texture = load(PATH) as Texture2D
+	logo.stretch_mode        = TextureRect.STRETCH_KEEP_ASPECT_CENTERED
+	logo.expand_mode         = TextureRect.EXPAND_IGNORE_SIZE
+	logo.anchor_left         = 1.0
+	logo.anchor_right        = 1.0
+	logo.anchor_top          = 1.0
+	logo.anchor_bottom       = 1.0
+	logo.offset_left         = -200
+	logo.offset_right        = -16
+	logo.offset_top          = -208
+	logo.offset_bottom       = -16
+	logo.modulate.a          = 0.85
+	add_child(logo)
 
 func _big_btn(text: String, width: float, cb: Callable) -> Button:
 	var b := _btn(text, cb)

scripts/Player.gd

@@ -207,6 +207,7 @@ func _do_kick() -> void:
 	else:
 		force = 80.0
 	best.call("receive_kick", best_dir, force)
+	SFX.kick_player(get_parent())
 	FX.hit_spark(best.global_position + Vector3(0, 0.4, 0), get_parent())
 	_squish_effect()
 
@@ -262,6 +263,7 @@ func take_damage(amount: int, attacker_toughness: int = 0) -> void:
 		
 	health = min(health - amount, max_health)
 	emit_signal("health_changed", health, max_health)
+	SFX.damage(get_parent())
 	_squish_effect()
 
 func heal(amount: int) -> void:

scripts/SFX.gd

@@ -0,0 +1,54 @@
+class_name SFX
+
+# Expected files in res://assets/sfx/:
+#   kick_player.ogg   — player kicks something
+#   kick_enemy.ogg    — enemy attacks
+#   merge.ogg         — two objects merge
+#   damage.ogg        — player takes damage
+#   ambient.ogg       — looping background ambience
+
+const _BASE := "res://assets/sfx/"
+
+static func _play(name: String, parent: Node, volume_db: float = 0.0, pitch: float = 1.0) -> void:
+	var path := _BASE + name
+	if not ResourceLoader.exists(path):
+		return
+	var stream := load(path) as AudioStream
+	if stream == null:
+		return
+	var p := AudioStreamPlayer.new()
+	p.stream     = stream
+	p.volume_db  = volume_db
+	p.pitch_scale = pitch + randf_range(-0.06, 0.06)
+	p.bus        = "Master"
+	parent.add_child(p)
+	p.play()
+	p.connect("finished", p.queue_free)
+
+static func kick_player(parent: Node) -> void:
+	_play("kick_player.ogg", parent, -4.0)
+
+static func kick_enemy(parent: Node) -> void:
+	_play("kick_enemy.ogg", parent, -6.0)
+
+static func merge(parent: Node) -> void:
+	_play("merge.ogg", parent, -3.0)
+
+static func damage(parent: Node) -> void:
+	_play("damage.ogg", parent, -2.0)
+
+static func start_ambient(parent: Node) -> AudioStreamPlayer:
+	var path := _BASE + "ambient.ogg"
+	if not ResourceLoader.exists(path):
+		return null
+	var stream := load(path) as AudioStream
+	if stream == null:
+		return null
+	var p := AudioStreamPlayer.new()
+	p.stream     = stream
+	p.volume_db  = -14.0
+	p.bus        = "Master"
+	p.autoplay   = true
+	(stream as AudioStreamOggVorbis).loop = true
+	parent.add_child(p)
+	return p

scripts/SFX.gd.uid

@@ -0,0 +1 @@
+uid://d2vxdhi2fmqhd