Added new Candle effect - like those fake flickering led candles (#317)

* Added new Candle effect - like those fake flickering led candles

* Candle work...
code cleanups
parameter changes
schema file
english labels

* renamed a title

* candle effect german localisation

* fix typo in police.py

assets/webconfig/i18n/de.json

@@ -321,6 +321,7 @@
 		"edt_conf_effp_disable_itemtitle" : "Effekt",
 		"edt_conf_log_heading_title" : "Protokoll",
 		"edt_conf_log_level_title" : "Protokollstufe",
+		"edt_eff_candle_header_title" : "Kerze",
 		"edt_eff_police_header_title" : "Polizei",
 		"edt_eff_fade_header_title" : "Farbübergang",
 		"edt_eff_rainbowmood_header_title" : "Regenbogen",
@@ -347,6 +348,9 @@
 		"edt_eff_fadetime_title" : "Übergangszeit",
 		"edt_eff_colorstart_title" : "Farbe Start",
 		"edt_eff_colorend_title" : "Farbe Ende",
+		"edt_eff_colorshift_title" : "Farbverschiebung",
+		"edt_eff_whichleds_title" : "Welche LEDs",
+		"edt_eff_ledlist_title" : "LED Liste",
 		"edt_eff_speed_title" : "Geschwindigkeit",
 		"edt_eff_fadefactor_title" : "Verblass Faktor",
 		"edt_eff_showseconds_title" : "Zeige Sekunden",

assets/webconfig/i18n/en.json

@@ -321,6 +321,7 @@
 		"edt_conf_effp_disable_itemtitle" : "Effect",
 		"edt_conf_log_heading_title" : "Logging",
 		"edt_conf_log_level_title" : "Log-Level",
+		"edt_eff_candle_header_title" : "Candle",
 		"edt_eff_police_header_title" : "Police",
 		"edt_eff_fade_header_title" : "Fade",
 		"edt_eff_rainbowmood_header_title" : "Rainbow Mood",
@@ -347,6 +348,9 @@
 		"edt_eff_fadetime_title" : "Fade time",
 		"edt_eff_colorstart_title" : "Color start",
 		"edt_eff_colorend_title" : "Color end",
+		"edt_eff_colorshift_title" : "Color Shift",
+		"edt_eff_whichleds_title" : "Which Leds",
+		"edt_eff_ledlist_title" : "Led List",
 		"edt_eff_speed_title" : "Speed",
 		"edt_eff_fadefactor_title" : "Fade factor",
 		"edt_eff_showseconds_title" : "Show seconds",

effects/candle.json

@@ -0,0 +1,11 @@
+{
+	"name" : "Candle",
+	"script" : "candle.py",
+	"args" :
+	{
+		"sleepTime" : 0.15,
+		"brightness" : 0.50,
+		"color" : [ 255, 138, 0 ],
+		"candles" : "all"
+	}
+}

effects/candle.py

@@ -0,0 +1,81 @@
+
+# Candleflicker effect by penfold42
+# Algorithm courtesy of 
+# https://cpldcpu.com/2013/12/08/hacking-a-candleflicker-led/
+
+# candles can be :
+# a single led number, a list of candle numbers
+# "all" to flicker all the leds randomly
+# "all-together" to flicker all the leds in unison
+
+import hyperion
+import time
+import colorsys
+import random
+
+# Get parameters
+color = hyperion.args.get('color', (255,138,0))
+colorShift = hyperion.args.get('colorShift', 0.01)
+brightness = float(hyperion.args.get('brightness', 0.5))
+
+sleepTime = float(hyperion.args.get('sleepTime', 0.14))
+
+candles = hyperion.args.get('candles', "all")
+ledlist = hyperion.args.get('ledlist', "1")
+
+candlelist = ()
+if (candles == "list") and (type(ledlist) is str):
+	for s in ledlist.split(','):
+		i = int(s)
+		if (i<hyperion.ledCount):
+			candlelist += (i,)
+elif (candles == "list") and (type(ledlist) is list):
+        for s in (ledlist):
+		i = int(s)
+		if (i<hyperion.ledCount):
+			candlelist += (i,)
+else:
+	candlelist = range(hyperion.ledCount)
+
+
+# Convert rgb color to hsv
+hsv = colorsys.rgb_to_hsv(color[0]/255.0, color[1]/255.0, color [2]/255.0)
+
+
+def CandleRgb():
+	hue = random.uniform(hsv[0]-colorShift, hsv[0]+colorShift) % 1.0
+
+	RAND=random.randint(0,15)
+	while ((RAND & 0x0c)==0):
+		RAND=random.randint(0,15)
+	val = ( min(RAND, 15)/15.0001 ) * brightness
+
+	frgb = colorsys.hsv_to_rgb(hue, hsv[1], val);
+
+	return (int(255*frgb[0]), int(255*frgb[1]), int(255*frgb[2]))
+
+
+ledData = bytearray(hyperion.ledCount * (0,0,0) )
+while not hyperion.abort():
+	if (candles == "all-together"):
+		rgb = CandleRgb()
+		for lednum in candlelist:
+			ledData[3*lednum+0] = rgb[0] 
+			ledData[3*lednum+1] = rgb[1] 
+			ledData[3*lednum+2] = rgb[2] 
+	elif (candles == "all"):
+		for lednum in candlelist:
+			rgb = CandleRgb()
+			ledData[3*lednum+0] = rgb[0] 
+			ledData[3*lednum+1] = rgb[1] 
+			ledData[3*lednum+2] = rgb[2] 
+	else:
+		for lednum in candlelist:
+			rgb = CandleRgb()
+			ledData[3*lednum+0] = rgb[0] 
+			ledData[3*lednum+1] = rgb[1] 
+			ledData[3*lednum+2] = rgb[2] 
+
+	hyperion.setColor (ledData)
+	time.sleep(sleepTime)
+

effects/schema/candle.schema.json

@@ -0,0 +1,60 @@
+{
+    "type":"object",
+    "script" : "candle.py",
+    "title":"edt_eff_candle_header_title",
+    "required":true,
+    "properties":{
+	"candles": {
+		"type": "string",
+		"title":"edt_eff_whichleds_title",
+		"enum" : ["all","all-together","list"],
+		"default" : "all",
+		"propertyOrder" : 1
+	},
+	"ledlist": {
+		"type": "string",
+		"title":"edt_eff_ledlist_title",
+		"default" : "1,11,21",
+		"propertyOrder" : 2
+	},
+        "color": {
+            "type": "array",
+            "title":"edt_eff_color_title",
+            "format":"colorpicker",
+            "default": [255,138,0],
+            "items" : {
+                "type": "integer",
+                "minimum": 0,
+                "maximum": 255
+            },
+            "minItems": 3,
+            "maxItems": 3,
+            "propertyOrder" : 3
+        },
+	"colorShift": {
+		"type": "number",
+		"title":"edt_eff_colorshift_title",
+		"default": 0.01,
+		"minimum" : 0.00,
+                "maximum": 1,
+		"propertyOrder" : 4
+	},
+	"brightness": {
+		"type": "number",
+		"title":"edt_eff_brightness_title",
+		"default": 0.5,
+		"minimum" : 0.01,
+                "maximum": 1,
+		"propertyOrder" : 5
+	},
+        "sleepTime": {
+		"type": "number",
+		"title":"edt_eff_sleeptime_title",
+		"default": 0.15,
+		"minimum" : 0.01,
+                "maximum": 1,
+		"propertyOrder" : 6
+	}
+    },
+    "additionalProperties": false
+}