Separate weathers from engine

ca_weathers/rain_heavy.lua

@@ -0,0 +1,31 @@
+local name = "regional_weather:rain_heavy"
+
+local conditions = {
+	min_height		= regional_weather.settings.min_height,
+	max_height		= regional_weather.settings.max_height,
+	min_heat			= 30,
+	min_humidity	= 60
+}
+
+local effects = {}
+
+effects["regional_weather:spawn_puddles"] = true
+effects["regional_weather:wetten_farmland"] = true
+effects["regional_weather:lightning"] = true
+
+effects["climate_api:sound"] = {
+	name = "weather_rain",
+	gain = 1
+}
+
+effects["climate_api:particles"] = {
+	min_pos = {x=-9, y=7, z=-9},
+	max_pos = {x= 9, y=7, z= 9},
+	falling_speed=10,
+	amount=20,
+	exptime=0.8,
+	size=25,
+	texture="weather_rain.png"
+}
+
+climate_api.register_weather(name, conditions, effects)