From 38f3030b93b3aca9fc3d6bbc69bde16f9bb7579b Mon Sep 17 00:00:00 2001
From: Stefan Bethke <stb@lassitu.de>
Date: Wed, 20 Jul 2022 22:55:37 +0200
Subject: [PATCH] Kleine Verbesserungen

---
 dmx.py    | 39 +++++++++++++++++++++++++++++----------
 foobaz.py |  2 +-
 2 files changed, 30 insertions(+), 11 deletions(-)

diff --git a/dmx.py b/dmx.py
index 5723a62..892143e 100644
--- a/dmx.py
+++ b/dmx.py
@@ -5,6 +5,12 @@ from threading import Thread
 from time import sleep, time
 
 
+def hsv_to_rgb(h, s, v):
+    (r, g, b) = colorsys.hsv_to_rgb(h, s, v)
+    return [int(r * 255), int(g * 255), int(b * 255)]
+
+
+
 class RGB:
     def __init__(self, dmx, slot, offset=0):
         self.dmx = dmx
@@ -45,6 +51,22 @@ class Steady:
     def __str__(self):
         return f"steady({self.r}, {self.g}, {self.b})"
 
+
+class FadeTo(Steady):
+    def __init__(self, r, g, b, t=2.0):
+        super(FadeTo, self).__init__(r, g, b)
+        self.t = t
+        self.start = time()
+
+    def update(self, index, count):
+        h = (time() - self.start) / self.t
+        h = min(h, 1.0)
+        return (int(self.r * h), int(self.g * h), int(self.b * h))
+
+    def __str__(self):
+        return f"fadeTo({self.r}, {self.g}, {self.b})"
+
+
 class RotatingRainbow:
     def __init__(self):
         pass
@@ -57,13 +79,9 @@ class RotatingRainbow:
         :return:
         """
         hue = (time() / 10.0 + (index + 0.0) / count) % 1.0
-        rgb = self.hsv_to_rgb(hue, 1, 1)
+        rgb = hsv_to_rgb(hue, 1, 1)
         return rgb
 
-    def hsv_to_rgb(self, h, s, v):
-        (r, g, b) = colorsys.hsv_to_rgb(h, s, v)
-        return [int(r * 255), int(g * 255), int(b * 255)]
-
     def __str__(self):
         return "RotatingRainbow"
 
@@ -81,25 +99,26 @@ class DMX:
         packet.extend([0x00, 0x50])  # Opcode ArtDMX 0x5000 (Little endian)
         packet.extend([0x00, 0x0e])  # Protocol version 14
         self.header = packet
-        self.animation = Steady(64, 64, 64)
+        self.animation = FadeTo(255, 255, 255)
         self.rgbs = []
+        self.thread = None
 
     def start(self):
+        if self.thread and self.thread.is_alive():
+            return
         self.thread = Thread(daemon=True, target=self.background)
         self.thread.start()
 
     def background(self):
-        print("background starts")
         while True:
             animation = self.animation
             for i in range(0, len(self.rgbs)):
                 self.rgbs[i].rgb(animation.update(i, len(self.rgbs)))
             self.update()
             # print("updating")
-            print(self.data)
-            break
+            # print(self.data)
+            # break
             sleep(1.0/30)
-        print("background ends")
 
     def update(self):
         packet = self.header[:]
diff --git a/foobaz.py b/foobaz.py
index 19782ea..37c480f 100644
--- a/foobaz.py
+++ b/foobaz.py
@@ -45,5 +45,5 @@ dmx.rgbs = [
 dmx.update()
 dmx.start()
 
-run(host='localhost', port=8080, reloader=True)
+run(host='localhost', port=8080, server='wsgiref', reloader=True)