2 files changed, 18 insertions, 1 deletions

diff --git a/helpers/mapping.py b/helpers/mapping.py
index 28f4acd..e800778 100644
--- a/helpers/mapping.py
+++ b/helpers/mapping.py
@@ -1,6 +1,7 @@
 from kivy.uix.relativelayout import RelativeLayout
-from kivy.properties import NumericProperty
+from kivy.properties import NumericProperty, ListProperty
 from kivy.core.window import Window
+from kivy.clock import Clock
 
 import threading
 import pygame
@@ -12,6 +13,7 @@ from .music_file import *
 
 class Mapping(RelativeLayout):
     expected_keys = NumericProperty(0)
+    ready_color = ListProperty([1, 165/255, 0, 1])
 
     def __init__(self, **kwargs):
         self.key_config, self.channel_number, self.open_files = self.parse_config()
@@ -19,6 +21,7 @@ class Mapping(RelativeLayout):
         self._keyboard = Window.request_keyboard(self._keyboard_closed, self)
         self._keyboard.bind(on_key_down=self._on_keyboard_down)
         self.running = []
+        Clock.schedule_interval(self.not_all_keys_ready, 1)
 
 
         pygame.mixer.init(frequency = 44100)
@@ -57,6 +60,15 @@ class Mapping(RelativeLayout):
                 return key
         return None
 
+    def not_all_keys_ready(self, dt):
+        for key in self.children:
+            if not type(key).__name__ == "Key":
+                continue
+            if not key.is_key_ready:
+                return True
+        self.ready_color = [0, 1, 0, 1]
+        return False
+
     def stop_all_running(self):
         self.running = []
 
diff --git a/music_sampler.kv b/music_sampler.kv
index 87c6e93..7d7e95c 100644
--- a/music_sampler.kv
+++ b/music_sampler.kv
@@ -318,6 +318,11 @@
     Rectangle:
       pos:  0, 0
       size: self.width, self.height
+    Color:
+      rgba: self.ready_color
+    Ellipse:
+      pos: self.width - self.key_size / 2, self.height - self.key_size /2
+      size: self.key_size / 3, self.key_size / 3
   Key:
     id: Key_27
     key_code: 27