add kickable tooltips

scripts/Rock.gd

@@ -20,6 +20,7 @@ var damage_modifier: float = 1.25
 
 @onready var mesh_node: MeshInstance3D = $RockMesh
 var rock_mat: StandardMaterial3D
+var _tooltip: Label3D
 
 const COLOR_IDLE   := Color(0.45, 0.38, 0.30)
 const COLOR_IMPACT := Color(1.0, 1.0, 1.0)
@@ -28,6 +29,23 @@ func _ready() -> void:
 	add_to_group("kickable")
 	rock_mat = mesh_node.material_override.duplicate() as StandardMaterial3D
 	mesh_node.material_override = rock_mat
+	_tooltip = Label3D.new()
+	_tooltip.text = "Rock\n+Rock → Boulder\n+Stick → Wood Shield"
+	_tooltip.billboard = BaseMaterial3D.BILLBOARD_ENABLED
+	_tooltip.font_size = 28
+	_tooltip.outline_size = 6
+	_tooltip.position = Vector3(0, 1.1, 0)
+	_tooltip.modulate = Color(1.0, 0.95, 0.8)
+	_tooltip.visible = false
+	add_child(_tooltip)
+
+func _process(_delta: float) -> void:
+	if dead or state != State.IDLE:
+		_tooltip.visible = false
+		return
+	var players := get_tree().get_nodes_in_group("player")
+	_tooltip.visible = not players.is_empty() and \
+		(players[0] as Node3D).global_position.distance_to(global_position) < 2.5
 
 func can_merge_with(_other: Node3D, _speed: float) -> bool:
 	return false