From 7987fa3c8a5ef74b32ccb59b6b9aee3c6fdc7106 Mon Sep 17 00:00:00 2001
From: Hartmut Seichter <hartmut@gmail.com>
Date: Tue, 8 Jul 2025 21:25:46 +0200
Subject: [PATCH] added signalling to button and demo

---
 addons/vrpn/examples/spin_tracker.tscn | 29 +++++++++++++++++++++++++-
 addons/vrpn/scripts/VRPN_Button.gd     |  4 +++-
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/addons/vrpn/examples/spin_tracker.tscn b/addons/vrpn/examples/spin_tracker.tscn
index a75fc4c..4a973d2 100644
--- a/addons/vrpn/examples/spin_tracker.tscn
+++ b/addons/vrpn/examples/spin_tracker.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=6 format=3 uid="uid://bj5ykdjle10tt"]
+[gd_scene load_steps=8 format=3 uid="uid://bj5ykdjle10tt"]
 
 [ext_resource type="Script" uid="uid://dmq3i7qmo1qe0" path="res://addons/vrpn/scripts/VRPN_Client.gd" id="2_24d08"]
 [ext_resource type="Script" uid="uid://dpj1wrvfsiq4v" path="res://addons/vrpn/scripts/VRPN_Tracker.gd" id="2_170dk"]
@@ -8,6 +8,22 @@
 [sub_resource type="PlaneMesh" id="PlaneMesh_24d08"]
 size = Vector2(6, 2)
 
+[sub_resource type="SphereMesh" id="SphereMesh_j4l28"]
+radius = 0.25
+height = 0.5
+radial_segments = 32
+rings = 16
+
+[sub_resource type="GDScript" id="GDScript_j4l28"]
+resource_name = "ButtonReact"
+script/source = "extends Node3D
+
+
+func _on_button_0_on_vrpn_button(data):
+	if 0 in data['changes']:
+		self.visible = (data['changes'][0] == 1)
+"
+
 [node name="Node3D" type="Node3D"]
 
 [node name="Camera3D" type="Camera3D" parent="."]
@@ -73,5 +89,16 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.769847, 0)
 text = "X-Axis"
 
 [node name="Button0" type="Node3D" parent="Root/SpinTracker" node_paths=PackedStringArray("vrpn_client")]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.21693, 0)
 script = ExtResource("4_j4l28")
 vrpn_client = NodePath("../../VRPN")
+
+[node name="MeshInstance3D" type="MeshInstance3D" parent="Root/SpinTracker/Button0"]
+mesh = SubResource("SphereMesh_j4l28")
+script = SubResource("GDScript_j4l28")
+
+[node name="Label3D" type="Label3D" parent="Root/SpinTracker/Button0/MeshInstance3D"]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0.431905, 0)
+text = "Button"
+
+[connection signal="on_vrpn_button" from="Root/SpinTracker/Button0" to="Root/SpinTracker/Button0/MeshInstance3D" method="_on_button_0_on_vrpn_button"]
diff --git a/addons/vrpn/scripts/VRPN_Button.gd b/addons/vrpn/scripts/VRPN_Button.gd
index 5508374..750b8b1 100644
--- a/addons/vrpn/scripts/VRPN_Button.gd
+++ b/addons/vrpn/scripts/VRPN_Button.gd
@@ -7,6 +7,8 @@ extends Node
 
 var state : int = 0
 
+signal on_vrpn_button(data:Dictionary)
+
 func _ready():
 	if not vrpn_client:
 		push_warning("No VRPN client for button on '%s' given." % [self.name])
@@ -15,4 +17,4 @@ func _ready():
 
 func _on_vrpn(vrpn_data : Dictionary) -> void:
 	if vrpn_data['sensor'] == button_sensor:
-		pass
+		on_vrpn_button.emit(vrpn_data)