Merge pull request 'Biome specific weather' (#2505) from fix-biome-weather into master

Reviewed-on: https://git.minetest.land/MineClone2/MineClone2/pulls/2505
Reviewed-by: MysticTempest <mystictempest@noreply.git.minetest.land>

mods/ENVIRONMENT/mcl_weather/rain.lua

@@ -41,6 +41,14 @@ local psdef= {
 
 local textures = {"weather_pack_rain_raindrop_1.png", "weather_pack_rain_raindrop_2.png"}
 
+function mcl_weather.has_rain(pos)
+	if not mcl_worlds.has_weather(pos) then return false end
+	if  mgname == "singlenode" or mgname == "v6" then return true end
+	local bd = minetest.registered_biomes[minetest.get_biome_name(minetest.get_biome_data(pos).biome)]
+	if bd and bd._mcl_biome_type == "hot" then return false end
+	return true
+end
+
 function mcl_weather.rain.sound_handler(player)
 	return minetest.sound_play("weather_rain", {
 		to_player = player:get_player_name(),
@@ -166,13 +174,23 @@ function mcl_weather.rain.make_weather()
 
 	for _, player in pairs(get_connected_players()) do
 		local pos=player:get_pos()
-		if mcl_weather.is_underwater(player) or not mcl_worlds.has_weather(pos) then
+		if mcl_weather.is_underwater(player) or not mcl_weather.has_rain(pos) then
 			mcl_weather.rain.remove_sound(player)
 			mcl_weather.remove_spawners_player(player)
+			if mcl_worlds.has_weather(pos) then
+				mcl_weather.set_sky_box_clear(player)
+			end
 		else
-			mcl_weather.rain.add_player(player)
-			mcl_weather.rain.add_rain_particles(player)
-			mcl_weather.rain.update_sound(player)
+			if mcl_weather.has_snow(pos) then
+				mcl_weather.rain.remove_sound(player)
+				mcl_weather.snow.add_player(player)
+				mcl_weather.snow.set_sky_box()
+			else
+				mcl_weather.rain.add_player(player)
+				mcl_weather.rain.add_rain_particles(player)
+				mcl_weather.rain.update_sound(player)
+				mcl_weather.rain.set_sky_box()
+			end
 		end
 	end
 end

mods/ENVIRONMENT/mcl_weather/skycolor.lua

@@ -1,6 +1,21 @@
 local mods_loaded = false
 local NIGHT_VISION_RATIO = 0.45
 
+function mcl_weather.set_sky_box_clear(player)
+	player:set_sky({
+		type = "regular",
+		sky_color = {
+			day_sky = "#92B9FF",
+			day_horizon = "#B4D0FF",
+			dawn_sky = "#B4BAFA",
+			dawn_horizon = "#BAC1F0",
+			night_sky = "#006AFF",
+			night_horizon = "#4090FF",
+		},
+		clouds = true,
+	})
+end
+
 mcl_weather.skycolor = {
 	-- Should be activated before do any effect.
 	active = true,
@@ -9,7 +24,7 @@ mcl_weather.skycolor = {
 	force_update = true,
 
 	-- Update interval.
-	update_interval = 15,
+	update_interval = 3,
 
 	-- Main sky colors: starts from midnight to midnight.
 	-- Please do not set directly. Use add_layer instead.
@@ -80,26 +95,34 @@ mcl_weather.skycolor = {
 		for _, player in ipairs(players) do
 			local pos = player:get_pos()
 			local dim = mcl_worlds.pos_to_dimension(pos)
+			local has_weather = (mcl_worlds.has_weather(pos) and (mcl_weather.state == "snow" or mcl_weather.state =="rain" or mcl_weather.state == "thunder") and mcl_weather.has_snow(pos)) or ((mcl_weather.state =="rain" or mcl_weather.state == "thunder") and mcl_weather.has_rain(pos))
 			if dim == "overworld" then
 				if (mcl_weather.state == "none") then
 					-- Clear weather
-					player:set_sky({
-						type = "regular",
-						sky_color = {
-							day_sky = "#92B9FF",
-							day_horizon = "#B4D0FF",
-							dawn_sky = "#B4BAFA",
-							dawn_horizon = "#BAC1F0",
-							night_sky = "#006AFF",
-							night_horizon = "#4090FF",
-						},
-						clouds = true,
-					})
+					mcl_weather.set_sky_box_clear(player)
 					player:set_sun({visible = true, sunrise_visible = true})
 					player:set_moon({visible = true})
 					player:set_stars({visible = true})
 					mcl_weather.skycolor.override_day_night_ratio(player, nil)
-				else
+				elseif not has_weather then
+					local day_color = mcl_weather.skycolor.get_sky_layer_color(0.15)
+					local dawn_color = mcl_weather.skycolor.get_sky_layer_color(0.27)
+					local night_color = mcl_weather.skycolor.get_sky_layer_color(0.1)
+					player:set_sky({ type = "regular",
+						sky_color = {
+							day_sky = day_color,
+							day_horizon = day_color,
+							dawn_sky = dawn_color,
+							dawn_horizon = dawn_color,
+							night_sky = night_color,
+							night_horizon = night_color,
+						},
+						clouds = true,
+					})
+					player:set_sun({visible = false, sunrise_visible = false})
+					player:set_moon({visible = false})
+					player:set_stars({visible = false})
+				elseif has_weather then
 					-- Weather skies
 					local day_color = mcl_weather.skycolor.get_sky_layer_color(0.5)
 					local dawn_color = mcl_weather.skycolor.get_sky_layer_color(0.75)

mods/ENVIRONMENT/mcl_weather/snow.lua

@@ -4,6 +4,42 @@ mcl_weather.snow = {}
 
 local PARTICLES_COUNT_SNOW = tonumber(minetest.settings:get("mcl_weather_snow_particles")) or 100
 mcl_weather.snow.init_done = false
+local mgname = minetest.get_mapgen_setting("mg_name")
+
+local snow_biomes = {
+	"ColdTaiga_underground",
+	"IcePlains_underground",
+	"IcePlainsSpikes_underground",
+	"MegaTaiga_underground",
+	"Taiga_underground",
+	"IcePlains_deep_ocean",
+	"MegaSpruceTaiga_deep_ocean",
+	"IcePlainsSpikes_ocean",
+	"StoneBeach_ocean",
+	"ColdTaiga_deep_ocean",
+	"MegaTaiga_ocean",
+	"StoneBeach_deep_ocean",
+	"IcePlainsSpikes_deep_ocean",
+	"ColdTaiga_ocean",
+	"MegaTaiga_deep_ocean",
+	"MegaSpruceTaiga_ocean",
+	"ExtremeHills+_ocean",
+	"IcePlains_ocean",
+	"Taiga_ocean",
+	"Taiga_deep_ocean",
+	"StoneBeach",
+	"ColdTaiga_beach_water",
+	"Taiga_beach",
+	"ColdTaiga_beach",
+	"Taiga",
+	"ExtremeHills+_snowtop",
+	"MegaSpruceTaiga",
+	"MegaTaiga",
+	"ExtremeHills+",
+	"ColdTaiga",
+	"IcePlainsSpikes",
+	"IcePlains",
+}
 
 local psdef= {
 	amount = PARTICLES_COUNT_SNOW,
@@ -25,6 +61,19 @@ local psdef= {
 	glow = 1
 }
 
+function mcl_weather.has_snow(pos)
+	if not mcl_worlds.has_weather(pos) then return false end
+	if  mgname == "singlenode" or mgname == "v6" then return false end
+	local bn = minetest.get_biome_name(minetest.get_biome_data(pos).biome)
+	local bd = minetest.registered_biomes[bn]
+	if bd and bd._mcl_biome_type == "snowy" then return true end
+	if bd and bd._mcl_biome_type == "cold" then
+		if bn == "Taiga" and pos.y > 140 then return true end
+		if bn == "MegaSpruceTaiga" and pos.y > 100 then return true end
+	end
+	return false
+end
+
 function mcl_weather.snow.set_sky_box()
 	mcl_weather.skycolor.add_layer(
 		"weather-pack-snow-sky",
@@ -46,9 +95,11 @@ function mcl_weather.snow.clear()
 	mcl_weather.remove_all_spawners()
 end
 
--- Simple random texture getter
-function mcl_weather.snow.get_texture()
-	return "weather_pack_snow_snowflake"..math.random(1,2)..".png"
+function mcl_weather.snow.add_player(player)
+	for i=1,2 do
+		psdef.texture="weather_pack_snow_snowflake"..i..".png"
+		mcl_weather.add_spawner_player(player,"snow"..i,psdef)
+	end
 end
 
 local timer = 0
@@ -70,13 +121,12 @@ minetest.register_globalstep(function(dtime)
 	end
 
 	for _, player in pairs(get_connected_players()) do
-		if mcl_weather.is_underwater(player) or not mcl_worlds.has_weather(player:get_pos()) then
+		if mcl_weather.is_underwater(player) or not mcl_weather.has_snow(player:get_pos()) then
 			mcl_weather.remove_spawners_player(player)
+			mcl_weather.set_sky_box_clear(player)
 		else
-			for i=1,2 do
-				psdef.texture="weather_pack_snow_snowflake"..i..".png"
-				mcl_weather.add_spawner_player(player,"snow"..i,psdef)
-			end
+			mcl_weather.snow.add_player(player)
+			mcl_weather.snow.set_sky_box()
 		end
 	end
 end)
@@ -96,3 +146,34 @@ if mcl_weather.reg_weathers.snow == nil then
 		}
 	}
 end
+
+minetest.register_abm({
+	label = "Snow piles up",
+	nodenames = {"group:opaque","group:leaves","group:snow_cover"},
+	neighbors = {"air"},
+	interval = 27,
+	chance = 33,
+	action = function(pos, node, active_object_count, active_object_count_wider)
+		if node.name == "mcl_core:snowblock" then return end
+		local above = vector.offset(pos,0,1,0)
+		local above_node = minetest.get_node(above)
+		if above_node.name ~= "air" then return end
+		if (mcl_weather.state == "rain" or mcl_weather.state == "thunder" or mcl_weather.state == "snow") and mcl_weather.is_outdoor(pos) and mcl_weather.has_snow(pos) then
+			local nn = nil
+			if node.name:find("snow") then
+				local l = node.name:sub(-1)
+				l = tonumber(l)
+				if node.name == "mcl_core:snow" then
+					nn={name = "mcl_core:snow_2"}
+				elseif l and l < 7 then
+					nn={name="mcl_core:snow_"..tostring(math.min(8,l + 1))}
+				elseif l and l >= 7 then
+					nn={name = "mcl_core:snowblock"}
+				end
+				if nn then minetest.set_node(pos,nn) end
+			else
+				minetest.set_node(above,{name = "mcl_core:snow"})
+			end
+		end
+	end
+})

mods/ENVIRONMENT/mcl_weather/weather_core.lua

@@ -54,6 +54,8 @@ function mcl_weather.add_spawner_player(pl,id,ps)
 		particlespawners[name] = {}
 	end
 	if not particlespawners[name][id] then
+		mcl_weather.remove_spawners_player(pl)
+		particlespawners[name] = {}
 		ps.playername =name
 		ps.attached = pl
 		particlespawners[name][id]=minetest.add_particlespawner(ps)