tooltips and ui

core/main_menu/sign.gd

@@ -0,0 +1,47 @@
+extends Node3D
+
+@export var sub_viewport: SubViewport
+@onready var quad_cartello = $%QuadSign
+@onready var coll_shape = $%CollisionShape3D
+
+func _ready() -> void:
+	sub_viewport.transparent_bg = true
+	
+	var mat = StandardMaterial3D.new()
+	mat.albedo_texture = sub_viewport.get_texture()
+	mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
+	
+	#fix color
+	sub_viewport.use_hdr_2d = false
+	mat.albedo_texture_force_srgb = true
+	mat.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
+	mat.albedo_color = Color(0.85, 0.85, 0.85, 1.0)
+	
+	quad_cartello.material_override = mat
+	
+	coll_shape.shape.size = Vector3(2.0, 2.0, 2.0)
+	coll_shape.position.z = 0.0
+
+
+func _on_area_3d_input_event(camera: Node, event: InputEvent, event_position: Vector3, normal: Vector3, shape_idx: int) -> void:
+	if event is InputEventMouse:
+		var local_cam = quad_cartello.to_local(camera.global_position)
+		var local_hit = quad_cartello.to_local(event_position)
+		var ray_dir = (local_hit - local_cam).normalized()
+		
+		if abs(ray_dir.z) < 0.0001: return
+		
+		var t = -local_cam.z / ray_dir.z
+		var exact_pos = local_cam + ray_dir * t
+		
+		var uv_x = exact_pos.x + 0.5
+		var uv_y = 0.5 - exact_pos.y
+		if uv_x < 0 or uv_x > 1 or uv_y < 0 or uv_y > 1:
+			return
+		
+		var viewport_pos = Vector2(uv_x * sub_viewport.size.x, uv_y * sub_viewport.size.y)
+		var ev2d = event.duplicate()
+		ev2d.position = viewport_pos
+		ev2d.global_position = viewport_pos
+			
+		sub_viewport.push_input(ev2d)