add clock effect (#383)

effects/clock.json

@@ -0,0 +1,16 @@
+{
+	"name" : "Clock",
+	"script" : "clock.py",
+	"args" :
+	{
+		"offset" : 0,
+
+		"hour-margin" : 2,
+		"minute-margin" : 1,
+		"second-margin" : 0,
+
+		"hour-color" : [255, 0, 0],
+		"minute-color" : [0, 255, 0],
+		"second-color" : [0, 0, 255]
+	}
+}

effects/clock.py

@@ -0,0 +1,75 @@
+import hyperion
+import time
+from datetime import datetime
+
+def myRange(index, margin):
+	return [i % hyperion.ledCount for i in range(index-margin, index+margin+1)]
+
+""" Define some variables """
+sleepTime = 1
+markers = [0, 13, 25, 38]
+
+ledCount = hyperion.ledCount
+
+offset = hyperion.args.get('offset', 0)
+
+hourMargin = hyperion.args.get('hour-margin', 2)
+minuteMargin = hyperion.args.get('minute-margin', 1)
+secondMargin = hyperion.args.get('second-margin', 0)
+
+hourColor = hyperion.args.get('hour-color', (255,0,0))
+minuteColor = hyperion.args.get('minute-color', (0,255,0))
+secondColor = hyperion.args.get('second-color', (0,0,255))
+
+""" The effect loop """
+while not hyperion.abort():
+
+	""" The algorithm to calculate the change in color """
+	led_data = bytearray()
+
+	now = datetime.now()
+	h = now.hour
+	m = now.minute
+	s = now.second
+
+	led_hour = ((h*4 + h//3%2 + h//6) + offset) % ledCount
+	led_minute = ((m*ledCount)/60 + offset) % ledCount
+
+	minute = m/60. * ledCount
+	minute_low = int(minute)
+	g1 = round((1-(minute-minute_low))*255)
+	led_minute = int(minute + offset) % ledCount
+
+	second = s/60. * ledCount
+	second_low = int(second)
+	b1 = round((1-(second-second_low))*255)
+	led_second = int(second + offset) % ledCount
+
+	hourRange =  myRange(led_hour, hourMargin)
+	minuteRange = myRange(led_minute, minuteMargin)
+	secondRange = myRange(led_second, secondMargin)
+
+	for i in range(ledCount):
+		blend = [0, 0, 0]
+
+		if i in markers:
+			blend = [255, 255, 255]
+
+		if i in hourRange:
+			blend = hourColor
+
+		if i in minuteRange:
+			blend = minuteColor
+
+		if i in secondRange:
+			blend = secondColor
+
+		led_data += bytearray((int(blend[0]), int(blend[1]), int(blend[2])))
+
+	""" send the data to hyperion """
+	hyperion.setColor(led_data)
+
+	""" sleep for a while """
+	timediff = (datetime.now()-now).microseconds/1000000.
+	time.sleep(sleepTime-timediff)
+