From 7aa5d3d6852a4256e878bd8e14a7c1de1e61ebb1 Mon Sep 17 00:00:00 2001
From: iggy <iggy@muc.ccc.de>
Date: Wed, 24 May 2023 05:03:24 +0200
Subject: [PATCH] basic sequencer and popcorn
---
python_payload/demo_sparabo.py | 46 ++++++++++++++++++++++++++++++++++
python_payload/event.py | 23 ++++++++++++++++-
2 files changed, 68 insertions(+), 1 deletion(-)
create mode 100644 python_payload/demo_sparabo.py
diff --git a/python_payload/demo_sparabo.py b/python_payload/demo_sparabo.py
new file mode 100644
index 0000000000..691f26559d
--- /dev/null
+++ b/python_payload/demo_sparabo.py
@@ -0,0 +1,46 @@
+import event
+import hardware
+from synth import tinysynth
+import math
+
+def xy_from_polar(r,deg):
+ #rad = deg/180*math.pi
+
+ return( (
+ r * math.sin(deg), #x
+ r * math.cos(deg) #y
+ ) )
+
+ctx = hardware.get_ctx()
+ctx.text_align = ctx.CENTER
+ctx.text_baseline = ctx.MIDDLE
+
+synth = tinysynth(440,1)
+synth.decay(25)
+
+popcorn = [9,7,9,5,0,5,-3,999]
+
+def on_step(data):
+ note = popcorn[data["step"]]
+ if note != 999:
+ synth.tone(note)
+ synth.start()
+
+
+ ctx.rgb(1,1,0).rectangle(-120,-120,240,240).fill()
+ (x,y) = xy_from_polar(90,-2*math.pi/8*data["step"]+math.pi)
+ size=180
+ ctx.rgb(0.8,0.8,0)
+ ctx.round_rectangle(
+ x-size/2,
+ y-size/2,
+ size,size,size//2
+ ).fill()
+ ctx.move_to(x,y).rgb(0.5,0.5,0).text("{}".format(data["step"]))
+ hardware.display_update()
+
+
+
+
+event.Sequence(bpm=160, steps=8, action=on_step, loop=True)
+event.the_engine.eventloop()
diff --git a/python_payload/event.py b/python_payload/event.py
index 6a39ff4890..3e8e9dac10 100644
--- a/python_payload/event.py
+++ b/python_payload/event.py
@@ -126,6 +126,22 @@ class EventTimed(Event):
def __repr__(self):
return ("event on tick {} ({})".format(self.deadline,self.name))
+
+class Sequence():
+ def __init__(self,bpm=60,loop=True,steps=16,action=None):
+ self.bpm = bpm
+ if not action:
+ self.action = lambda data: print("step {}".format(data.get("step")))
+ else:
+ self.action = action
+ stepsize_ms = int(60*1000/bpm)
+ for i in range(steps):
+ EventTimed(stepsize_ms*i,name="seq{}".format(i),action=self.action, data={'step':i})
+
+ if loop:
+ EventTimed(stepsize_ms*steps,name="loop",action=lambda data: Sequence(bpm=bpm,loop=loop,steps=steps,action=action))
+
+
global the_engine
the_engine = Engine()
@@ -136,5 +152,10 @@ Event(name="baz",
condition=lambda data: data.get('type')=="captouch"
)
+
+
+#Sequence(action=axelf)
+
print (the_engine.events_timed)
-#e.eventloop()
+#the_engine.eventloop()
+
--
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