From 8e169a82bd6779561eb8d6b030a86c6a34f4e619 Mon Sep 17 00:00:00 2001
From: Markus Schmidl <markus.schmidl@ymail.com>
Date: Tue, 21 Feb 2017 20:42:07 +0100
Subject: [PATCH] added class for fading between colors

---
 animations.py | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 animations.py

diff --git a/animations.py b/animations.py
new file mode 100644
index 0000000..eaaccef
--- /dev/null
+++ b/animations.py
@@ -0,0 +1,91 @@
+from beleuchtung import Beleuchtung
+import random
+import time
+
+class NoSegmentExists(Exception):
+	pass
+
+class ColorsMustBeMultipleOfThreeAndMustExist(Exception):
+	pass
+
+class Fade():
+	def __init__(self, start, end, step_num):
+		self.fade_step = (end - start) / step_num
+		self.current = start
+
+	def next(self):
+		self.current += self.fade_step
+		return round(self.current)
+
+class SolidColorFadingBetweenFenster(Beleuchtung):
+	def __init__(self, segments, colors, steps, addr):
+		if len(segments) == 0:
+			raise NoSegmentExists
+		if len(colors) % 3 != 0 or len(colors) == 0:
+			raise ColorsMustBeMultipleOfThreeAndMustExist
+		Beleuchtung.__init__(self, segments, addr)
+		self.colors = colors
+		self.max_step = steps
+		self.data = self.generate_new_colors()
+		self.fader = []
+
+	def __del__(self):
+		for i in self.fader:
+			del i
+
+	def to_hex(self, obj, offset):
+		return "%02x%02x%02x" % (obj[offset+1], obj[offset], obj[offset+2])
+
+	def __iter__(self):
+		self.step = 0
+		self.fade_to = self.generate_new_colors()
+		self.fader = [Fade(self.data[i], self.fade_to[i], self.max_step) for i in range(len(self.data))]
+		j = 0
+		for i in range(self.get_num_of_segments()):
+			print("%d\t#%s\t#%s" % (i, self.to_hex(self.data, j), self.to_hex(self.fade_to, j)))
+			j += self.segments[i] * 3
+		return self
+
+	def __next__(self):
+		self.step += 1
+		if self.step > self.max_step:
+			for i in self.fader:
+				del i
+			raise StopIteration
+		self.data = []
+		for i in self.fader:
+			self.data.append(i.next())
+		return self.send
+
+	def get_num_of_colors(self):
+		return len(self.colors) / 3
+
+	def get_rand_color(self):
+		i = random.randint(0, self.get_num_of_colors() - 1) * 3
+		return self.colors[i:i+3]
+
+	def generate_new_colors(self):
+		colors = []
+		for i in range(self.get_num_of_segments()):
+			colors += self.get_rand_color() * self.segments[i]
+		return colors
+
+if __name__ == "__main__":
+	ambiant_colors = [
+		0,0xff,0xfb,
+		0xff,0,0xff,
+		0,0xcd,0xeb,
+		0xfe,0xa0,0xd0,
+		0xce,0xfa,0x2d,
+		0x90,0x3c,0xee
+	]
+
+	x = SolidColorFadingBetweenFenster([57, 59], ambiant_colors, 1500, [("127.0.0.1", 49152),("172.23.92.15", 49152)])
+
+	try:
+		while True:
+			for i in x:
+				i()
+				time.sleep(1.0/50)
+	except KeyboardInterrupt:
+		del x