From 1b86a08e5cbd48fcf28fe3cdc713fcb61c115637 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Thu, 23 Jul 2015 00:07:57 +0200
Subject: [PATCH] replace with fading with nice looking pattern

---
 test.rb | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/test.rb b/test.rb
index a768708..d7c2530 100755
--- a/test.rb
+++ b/test.rb
@@ -27,13 +27,19 @@ NB_LEDS.times do |led|
   sleep 0.1
 end
 
-puts "white fading"
-white = 0
+puts "nice colors"
+phase = 0
+msg = [0xff,0x00,0x00,3*NB_LEDS]+[0x00]*3*NB_LEDS
+led_num = [10,9,8,7,6,5,4,3,2,1,0,11,12,13,14,15,16,17,18]+[29,28,27,26,25,24,23,22,21,20,19]+[41,42,43,44,45,46,47,48,40,39,38,37,36,35,34,33,32,31,30].reverse+[59,58,57,56,55,54,53,52,51,50,49].reverse
 while true do
-  start = Time.now
-  screenlight.write ([0xff,0x00,0x00,3*NB_LEDS]+[white]*3*NB_LEDS).pack("C*") # set LED to red
-  screenlight.flush_output
+  NB_LEDS.times do |i|
+    led = led_num[i]
+    msg[led*3+4] = (Math::sin(phase*0.9+i*0.2)+1)*128
+    msg[led*3+5] = (Math::sin(phase+Math::PI/2+i*0.2)+1)*128
+    msg[led*3+6] = (Math::sin(phase*1.1+Math::PI+i*0.2)+1)*128
+  end
+  screenlight.write msg.pack("C*")
+  screenlight.flush_output 
+  phase += 0.025
   sleep 0.02
-  white = (white+1)%256
-  puts "set white #{white} in #{Time.now-start} s"
 end