Weather fixes.

- BBQ grade is less pessimistic.
- Fix for unknown weather icons.

Shitpost.py

@@ -485,21 +485,6 @@ class Shitpost(object):
 		Omdat je te lui bent om naar buiten te kijken.
 		Oant Moarn!
 		"""
-		weatherIconTranslation = {
-			"zonnig" : ":sun_with_face:",
-			"bliksem" : ":cloud_lightning:",
-			"regen" : ":cloud_rain:",
-			"buien" : ":umbrella:",
-			"hagel" : ":cloud_snow:",
-			"mist" : ":white_large_square:",
-			"sneeuw" : ":cloud_snow:",
-			"bewolkt" : ":white_sun_cloud:",
-			"halfbewolkt" : ":partly_sunny:",
-			"zwaarbewolkt" : ":cloud:",
-			"nachtmist" : ":ghost:",
-			"helderenacht" : ":first_quarter_moon_with_face:",
-			"wolkennacht" : ":cloud:"
-		}
 		if(location == ""):
 			location = "Leiden"
 		if(str(verbose).lower() == "false"):
@@ -526,14 +511,14 @@ class Shitpost(object):
 					message += ":warning: Er is een weeralarm van kracht. Code " + alertCode + ".\n\n"
 
 			# Today:
-			message += weatherIconTranslation[ wData["liveweer"][0]["image"] ]
+			message += self.getWeatherIconTranslation( wData["liveweer"][0]["image"] )
 			message += " Het is " + wData["liveweer"][0]["temp"] + " graden "
 			message += "en het weer is: " + wData["liveweer"][0]["samenv"] +  ". "
 			message += "De verwachting: " + wData["liveweer"][0]["verw"] 
 			
 			if (v):
 				# Only print tomorrow, the day after and the BBQ grade if verbose is on:
-				message += "\n\nMorgen:  " + weatherIconTranslation[ wData["liveweer"][0]["d1weer"] ]
+				message += "\n\nMorgen:  " + self.getWeatherIconTranslation( wData["liveweer"][0]["d1weer"] )
 				message += " " + wData["liveweer"][0]["d1tmin"] + " tot "
 				message += wData["liveweer"][0]["d1tmax"] + " graden. "
 				if (wData["liveweer"][0]["d1neerslag"] == "0"):
@@ -543,7 +528,7 @@ class Shitpost(object):
 				if (int(wData["liveweer"][0]["d1windk"]) > 5):
 					message += "Windkracht " + wData["liveweer"][0]["d1windk"] + ". Blow it."
 
-				message += "\n\nOvermorgen:  "+  weatherIconTranslation[ wData["liveweer"][0]["d2weer"] ]
+				message += "\n\nOvermorgen:  "+  self.getWeatherIconTranslation( wData["liveweer"][0]["d2weer"] )
 				message += " "  + wData["liveweer"][0]["d2tmin"] + " tot "
 				message += wData["liveweer"][0]["d2tmax"] + " graden. "
 				if (wData["liveweer"][0]["d2neerslag"] == "0"):
@@ -561,7 +546,30 @@ class Shitpost(object):
 			yield from ctx.channel.send(message)
 		else:
 			print("API ERROR. :robot:")
-			
+	
+	#returns a nice weather icon. Sometimes the API uses non-documented icons, so we return something else
+	def getWeatherIconTranslation(self, iconKey):
+		WEATHER_ICONS = {
+			"zonnig" : ":sun_with_face:",
+			"bliksem" : ":cloud_lightning:",
+			"regen" : ":cloud_rain:",
+			"buien" : ":umbrella:",
+			"hagel" : ":cloud_snow:",
+			"mist" : ":white_large_square:",
+			"sneeuw" : ":cloud_snow:",
+			"bewolkt" : ":white_sun_cloud:",
+			"halfbewolkt" : ":partly_sunny:",
+			"zwaarbewolkt" : ":cloud:",
+			"nachtmist" : ":ghost:",
+			"helderenacht" : ":first_quarter_moon_with_face:",
+			"wolkennacht" : ":cloud:"
+		}
+		try:
+			return WEATHER_ICONS[iconKey]
+		except KeyError:
+			print("WARN  Unknown iconKey:", str(iconKey))
+			return ":park:"
+	
 	#returns which the current weatheralert code and returns a message
 	def getWeerAlarm(self, weatherObj):
 		if (weatherObj["alarm"] != "1"):
@@ -576,12 +584,10 @@ class Shitpost(object):
 	def getBbqGrade(self, weatherObj):
 		grade = 1.0
 		try:
-			averageTemp = (float(weatherObj["d0tmin"]) + float(weatherObj["d0tmax"])) / 2
-			
 			#add up to 4.0 points for sun:
 			grade += float(weatherObj["d0zon"]) / 25
 			#add up to 5.0 points for temperature:
-			grade += min(5.0, averageTemp*averageTemp/125)
+			grade += min(5.0, float(weatherObj["d0tmax"])*float(weatherObj["d0tmax"])/130)
 
 			#remove up to 5.0 points for rain/snow:
 			grade -= float(weatherObj["d0neerslag"]) / 20