Add time signature

__init__.py

@@ -36,7 +36,9 @@ class EndlessSequencer(Application):
         self.current_note = 0
         self.startTime = time.ticks_ms()
         self.SILENCE = 99
-        self.bpm = 240
+        self.bpm = 120
+        self.time_signature = [0.5, 1, 2] # 1/16, 1/8, 1/4
+        self.current_time_signature = 2 # 1/8
 
     def draw(self, ctx: Context) -> None:
         ctx.rgb(*colours.BLACK)
@@ -216,7 +218,7 @@ class EndlessSequencer(Application):
 
     def next_bpm(self):
         # taken from binarybrain code
-        beatTime = 60.0 * 1000.0 / self.bpm 
+        beatTime = 60.0 * 1000.0 / self.bpm / self.current_time_signature
         curRelTime = time.ticks_diff(time.ticks_ms(), self.startTime)
         return curRelTime / beatTime > 1