feat(character): add outfit layer API (set/clear/get_outfit per layer 1-3)

scripts/characters/character.gd

@@ -31,6 +31,7 @@ func _ready() -> void:
 		drag.drag_released.connect(_on_drag_released)
 	if data != null:
 		_update_visual_state()
+	_refresh_outfit_layers()
 
 
 func set_state(new_state: CharacterData.State) -> void:
@@ -54,6 +55,38 @@ func get_animation_state() -> String:
 	return _current_anim
 
 
+func set_outfit(layer: int, item_id: String, texture: Texture2D) -> void:
+	if layer < 1 or layer > 3:
+		return
+	if data != null:
+		data.outfit[layer - 1] = item_id
+	var layer_node: Sprite2D = get_node_or_null("OutfitLayer%d" % layer) as Sprite2D
+	if layer_node == null:
+		return
+	layer_node.texture = texture
+	layer_node.visible = not item_id.is_empty()
+
+
+func clear_outfit(layer: int) -> String:
+	if layer < 1 or layer > 3:
+		return ""
+	var old_id: String = ""
+	if data != null:
+		old_id = data.outfit[layer - 1]
+		data.outfit[layer - 1] = ""
+	var layer_node: Sprite2D = get_node_or_null("OutfitLayer%d" % layer) as Sprite2D
+	if layer_node != null:
+		layer_node.texture = null
+		layer_node.visible = false
+	return old_id
+
+
+func get_outfit(layer: int) -> String:
+	if data == null or layer < 1 or layer > 3:
+		return ""
+	return data.outfit[layer - 1]
+
+
 func _update_visual_state() -> void:
 	if data == null:
 		return
@@ -83,3 +116,12 @@ func _on_drag_released(pos: Vector2) -> void:
 		return
 	GameState.set_character_position(character_id, global_position)
 	character_placed.emit(self, global_position)
+
+
+func _refresh_outfit_layers() -> void:
+	if data == null:
+		return
+	for i: int in range(3):
+		var layer_node: Sprite2D = get_node_or_null("OutfitLayer%d" % (i + 1)) as Sprite2D
+		if layer_node != null:
+			layer_node.visible = not data.outfit[i].is_empty()

test/unit/test_character_v2.gd

@@ -73,3 +73,42 @@ func test_set_animation_state_happy() -> void:
 func test_set_animation_state_sleeping() -> void:
 	_char.set_animation_state("sleeping")
 	assert_eq(_char.get_animation_state(), "sleeping")
+
+
+func test_get_outfit_returns_empty_for_all_layers_initially() -> void:
+	assert_eq(_char.get_outfit(1), "")
+	assert_eq(_char.get_outfit(2), "")
+	assert_eq(_char.get_outfit(3), "")
+
+
+func test_set_outfit_stores_item_id() -> void:
+	_char.set_outfit(1, "white_coat", null)
+	assert_eq(_char.get_outfit(1), "white_coat")
+
+
+func test_set_outfit_does_not_affect_other_layers() -> void:
+	_char.set_outfit(1, "white_coat", null)
+	assert_eq(_char.get_outfit(2), "")
+	assert_eq(_char.get_outfit(3), "")
+
+
+func test_clear_outfit_returns_item_id() -> void:
+	_char.set_outfit(2, "cast_arm", null)
+	var returned: String = _char.clear_outfit(2)
+	assert_eq(returned, "cast_arm")
+
+
+func test_clear_outfit_empties_layer() -> void:
+	_char.set_outfit(2, "cast_arm", null)
+	_char.clear_outfit(2)
+	assert_eq(_char.get_outfit(2), "")
+
+
+func test_set_outfit_invalid_layer_zero_is_noop() -> void:
+	_char.set_outfit(0, "white_coat", null)
+	assert_eq(_char.get_outfit(1), "")
+
+
+func test_set_outfit_invalid_layer_four_is_noop() -> void:
+	_char.set_outfit(4, "white_coat", null)
+	assert_eq(_char.get_outfit(3), "")