add animations

core/game_menu/game_menu_tab.gd

@@ -5,24 +5,41 @@ class_name GameMenuTab
 
 signal on_tab_selected(index: int)
 
+@export var bob_height: float = 100
+@export var duration: float = 0.5
 @export var index: int = 0
 @export var image: Texture:
 	set(value):
 		image = value
-		if is_inside_tree() and has_node("%Texture"):
-			$%Texture.texture_normal = image
-		
-var is_selected: bool  = false
+		if is_inside_tree() and has_node("%TextureButton"):
+			$%TextureButton.texture_normal = image
+
+@onready var texture_button: TextureButton = $%TextureButton
+
+var is_selected: bool = false
+var hover_tween: Tween
 
 func _ready():
-	if image != null and has_node("%Texture"):
-		$%Texture.texture_normal = image
+	if image != null and has_node("%TextureButton"):
+		$%TextureButton.texture_normal = image
 
 func _on_texture_pressed() -> void:
 	on_tab_selected.emit(index)
 
 func select():
 	is_selected = true
+	_move_up()
 
 func deselect():
 	is_selected = false
+	_move_down()
+
+func _move_up():
+	if hover_tween: hover_tween.kill()
+	hover_tween = create_tween()
+	hover_tween.tween_property(texture_button, "position:y", -bob_height, duration).set_trans(Tween.TRANS_SINE)
+
+func _move_down():
+	if hover_tween: hover_tween.kill()
+	var exit_tween = create_tween()
+	exit_tween.tween_property(texture_button, "position:y", 0, duration).set_trans(Tween.TRANS_QUAD)