Merge pull request 'ENVIRONMENT/mcl_weather: use particle spawners instead of individual particles' (#146) from fix-weather-particles into master

Reviewed-on: MineClone5/MineClone5#146

mods/ENVIRONMENT/mcl_weather/rain.lua

@@ -1,5 +1,5 @@
-local PARTICLES_COUNT_RAIN = 30
+local PARTICLES_COUNT_RAIN = 100
-local PARTICLES_COUNT_THUNDER = 45
+local PARTICLES_COUNT_THUNDER = 300
 
 local get_connected_players = minetest.get_connected_players
 
@@ -19,6 +19,45 @@ mcl_weather.rain = {
 
 	init_done = false,
 }
+local update_sound={}
+local vel=math.random(0,3)
+local falling_speed=math.random(10,15)
+local size = math.random(1,3)
+local psdef= {
+	amount = mcl_weather.rain.particles_count,
+	time=0,
+	minpos = vector.new(-6,3,-6),
+	maxpos = vector.new(6,15,6),
+	minvel = vector.new(-vel,-falling_speed,-vel),
+	maxvel = math.random(vel,-falling_speed+vel,vel),
+	minacc = vector.new(0,0,0),
+	maxacc = vector.new(0,-0.4,0),
+	minexptime = 0.5,
+	maxexptime = 2,
+	minsize = size,
+	maxsize= size*2,
+	collisiondetection = true,
+	collision_removal = true,
+	vertical = true,
+}
+local psdef_backsplash= {
+	amount = 10,
+	time=0,
+	minpos = vector.new(-3,-1,-3),
+	maxpos = vector.new(3,0,3),
+	minvel = vector.new(-vel,falling_speed*2,-vel),
+	maxvel = math.random(vel,falling_speed*2+vel,vel),
+	minacc = vector.new(0,0,0),
+	maxacc = vector.new(0,0,0),
+	minexptime = 0.1,
+	maxexptime = 0.2,
+	minsize = size*0.1,
+	maxsize= size*0.5,
+	collisiondetection = true,
+	collision_removal = true,
+	vertical = true,
+}
+local textures = {"weather_pack_rain_raindrop_1.png", "weather_pack_rain_raindrop_2.png", "weather_pack_rain_raindrop_1.png"}
 
 function mcl_weather.rain.sound_handler(player)
 	return minetest.sound_play("weather_rain", {
@@ -44,42 +83,18 @@ function mcl_weather.rain.set_sky_box()
 	end
 end
 
--- creating manually parctiles instead of particles spawner because of easier to control
+-- no no no NO NO f*.. no. no manual particle creatin' PLS!! this sends EVERY particle over the net.
--- spawn position.
 function mcl_weather.rain.add_rain_particles(player)
-	mcl_weather.rain.last_rp_count = 0
+	mcl_weather.rain.last_rp_count = mcl_weather.rain.particles_count
-	for i=mcl_weather.rain.particles_count, 1,-1 do
+	for k,v in pairs(textures) do
-		local random_pos_x, random_pos_y, random_pos_z = mcl_weather.get_random_pos_by_player_look_dir(player)
+		psdef.texture=v
-		if mcl_weather.is_outdoor({x=random_pos_x, y=random_pos_y, z=random_pos_z}) then
+		mcl_weather.add_spawner_player(player,"rain"..k,psdef)
-			mcl_weather.rain.last_rp_count = mcl_weather.rain.last_rp_count + 1
-			minetest.add_particle({
-				pos = {x=random_pos_x, y=random_pos_y, z=random_pos_z},
-				velocity = {x=0, y=-10, z=0},
-				acceleration = {x=0, y=-30, z=0},
-				expirationtime = 1.0,
-				size = math.random(0.5, 3),
-				collisiondetection = true,
-				collision_removal = true,
-				vertical = true,
-				texture = mcl_weather.rain.get_texture(),
-				playername = player:get_player_name()
-			})
-		end
 	end
-end
+	psdef_backsplash.texture=textures[math.random(1,#textures)]
-
+	local l=mcl_weather.add_spawner_player(player,"rainbacksplash",psdef_backsplash)
--- Simple random texture getter
+	if l then
-function mcl_weather.rain.get_texture()
+		update_sound[player:get_player_name()]=true
-	local texture_name
-	local random_number = math.random()
-	if random_number > 0.33 then
-		texture_name = "weather_pack_rain_raindrop_1.png"
-	elseif random_number > 0.66 then
-		texture_name = "weather_pack_rain_raindrop_2.png"
-	else
-		texture_name = "weather_pack_rain_raindrop_3.png"
 	end
-	return texture_name;
 end
 
 -- register player for rain weather.
@@ -89,6 +104,7 @@ function mcl_weather.rain.add_player(player)
 		local player_meta = {}
 		player_meta.origin_sky = {player:get_sky()}
 		mcl_weather.players[player:get_player_name()] = player_meta
+		update_sound[player:get_player_name()]=true
 	end
 end
 
@@ -99,6 +115,7 @@ function mcl_weather.rain.remove_player(player)
 	if player_meta and player_meta.origin_sky then
 		player:set_clouds({color="#FFF0F0E5"})
 		mcl_weather.players[player:get_player_name()] = nil
+		update_sound[player:get_player_name()]=true
 	end
 end
 
@@ -119,6 +136,7 @@ end)
 -- have few seconds delay before each check to avoid on/off sound too often
 -- when player stay on 'edge' where sound should play and stop depending from random raindrop appearance.
 function mcl_weather.rain.update_sound(player)
+	if not update_sound[player:get_player_name()] then return end
 	local player_meta = mcl_weather.players[player:get_player_name()]
 	if player_meta then
 		if player_meta.sound_updated and player_meta.sound_updated + 5 > minetest.get_gametime() then
@@ -136,6 +154,7 @@ function mcl_weather.rain.update_sound(player)
 
 		player_meta.sound_updated = minetest.get_gametime()
 	end
+	update_sound[player:get_player_name()]=false
 end
 
 -- rain sound removed from player.
@@ -158,6 +177,7 @@ function mcl_weather.rain.clear()
 	for _, player in pairs(get_connected_players()) do
 		mcl_weather.rain.remove_sound(player)
 		mcl_weather.rain.remove_player(player)
+		mcl_weather.remove_spawners_player(player)
 	end	
 end
 
@@ -177,8 +197,10 @@ function mcl_weather.rain.make_weather()
 	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
+		local pos=player:get_pos()
+		if mcl_weather.is_underwater(player) or not mcl_worlds.has_weather(pos) or not  mcl_weather.is_outdoor(pos) then
 			mcl_weather.rain.remove_sound(player)
+			mcl_weather.remove_spawners_player(player)
 			return false
 		end
 		mcl_weather.rain.add_player(player)
@@ -190,8 +212,12 @@ end
 -- Switch the number of raindrops: "thunder" for many raindrops, otherwise for normal raindrops
 function mcl_weather.rain.set_particles_mode(mode)
 	if mode == "thunder" then
+		psdef.amount=PARTICLES_COUNT_THUNDER
+		psdef_backsplash.amount=PARTICLES_COUNT_THUNDER
 		mcl_weather.rain.particles_count = PARTICLES_COUNT_THUNDER
 	else
+		psdef.amount=PARTICLES_COUNT_RAIN
+		psdef_backsplash.amount=PARTICLES_COUNT_RAIN
 		mcl_weather.rain.particles_count = PARTICLES_COUNT_RAIN
 	end
 end

mods/ENVIRONMENT/mcl_weather/snow.lua

@@ -5,30 +5,25 @@ mcl_weather.snow = {}
 mcl_weather.snow.particles_count = 15
 mcl_weather.snow.init_done = false
 
--- calculates coordinates and draw particles for snow weather
+local psdef= {
-function mcl_weather.snow.add_snow_particles(player)
+	amount = 99,
-	mcl_weather.rain.last_rp_count = 0
+	time = 0, --stay on til we turn it off
-	for i=mcl_weather.snow.particles_count, 1,-1 do
+	minpos = vector.new(-15,-5,-15),
-		local random_pos_x, _, random_pos_z = mcl_weather.get_random_pos_by_player_look_dir(player)
+	maxpos =vector.new(15,10,15),
-		local random_pos_y = math.random() + math.random(player:get_pos().y - 1, player:get_pos().y + 7)
+	minvel = vector.new(0,-1,0),
-		if minetest.get_node_light({x=random_pos_x, y=random_pos_y, z=random_pos_z}, 0.5) == 15 then
+	maxvel = vector.new(0,-4,0),
-			mcl_weather.rain.last_rp_count = mcl_weather.rain.last_rp_count + 1
+	minacc = vector.new(0,-1,0),
-			minetest.add_particle({
+	maxacc = vector.new(0,-4,0),
-				pos = {x=random_pos_x, y=random_pos_y, z=random_pos_z},
+	minexptime = 1,
-				velocity = {x = math.random(-100,100)*0.001, y = math.random(-300,-100)*0.004, z = math.random(-100,100)*0.001},
+	maxexptime = 1,
-				acceleration = {x = 0, y=0, z = 0},
+	minsize = 0.5,
-				expirationtime = 8.0,
+	maxsize = 5,
-				size = 1,
+	collisiondetection = true,
-				collisiondetection = true,
+	collision_removal = true,
-				collision_removal = true,
+	object_collision = true,
-				object_collision = false,
+	vertical = true,
-				vertical = false,
+	glow = 1
-				texture = mcl_weather.snow.get_texture(),
+}
-				playername = player:get_player_name()
-			})
-		end
-	end
-end
 
 function mcl_weather.snow.set_sky_box()
 	mcl_weather.skycolor.add_layer(
@@ -48,6 +43,7 @@ end
 function mcl_weather.snow.clear()
 	mcl_weather.skycolor.remove_layer("weather-pack-snow-sky")
 	mcl_weather.snow.init_done = false
+	mcl_weather.remove_all_spawners()
 end
 
 -- Simple random texture getter
@@ -74,10 +70,14 @@ 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_worlds.has_weather(player:get_pos()) or not mcl_weather.is_outdoor(player:get_pos())) then
+			mcl_weather.remove_spawners_player(player)
 			return false
 		end
-		mcl_weather.snow.add_snow_particles(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
 end)
 

mods/ENVIRONMENT/mcl_weather/weather_core.lua

@@ -47,6 +47,35 @@ local function save_weather()
 end
 minetest.register_on_shutdown(save_weather)
 
+local particlespawners={}
+function mcl_weather.add_spawner_player(pl,id,ps)
+	local name=pl:get_player_name()
+	if not particlespawners[name] then
+		particlespawners[name] = {}
+	end
+	if not particlespawners[name][id] then
+		ps.playername =name
+		ps.attached = pl
+		particlespawners[name][id]=minetest.add_particlespawner(ps)
+		return particlespawners[name][id]
+	end
+end
+function mcl_weather.remove_spawners_player(pl)
+	local name=pl:get_player_name()
+	if not particlespawners[name] then return end
+	for k,v in pairs(particlespawners[name]) do
+		minetest.delete_particlespawner(v)
+	end
+	particlespawners[name] = nil
+	return true
+end
+
+function mcl_weather.remove_all_spawners()
+	for k,v in pairs(minetest.get_connected_players()) do
+		mcl_weather.remove_spawners_player(v)
+	end
+end
+
 function mcl_weather.get_rand_end_time(min_duration, max_duration)
 	local r
 	if min_duration and max_duration then
@@ -92,36 +121,6 @@ function mcl_weather.is_underwater(player)
 	return false
 end
 
--- trying to locate position for particles by player look direction for performance reason.
--- it is costly to generate many particles around player so goal is focus mainly on front view.
-function mcl_weather.get_random_pos_by_player_look_dir(player)
-	local look_dir = player:get_look_dir()
-	local player_pos = player:get_pos()
-
-	local random_pos_x, random_pos_y, random_pos_z
-
-	if look_dir.x > 0 then
-		if look_dir.z > 0 then
-			random_pos_x = math.random() + math.random(player_pos.x - 2.5, player_pos.x + 5)
-			random_pos_z = math.random() + math.random(player_pos.z - 2.5, player_pos.z + 5)
-		else
-			random_pos_x = math.random() + math.random(player_pos.x - 2.5, player_pos.x + 5)
-			random_pos_z = math.random() + math.random(player_pos.z - 5, player_pos.z + 2.5)
-		end
-	else
-		if look_dir.z > 0 then
-			random_pos_x = math.random() + math.random(player_pos.x - 5, player_pos.x + 2.5)
-			random_pos_z = math.random() + math.random(player_pos.z - 2.5, player_pos.z + 5)
-		else
-			random_pos_x = math.random() + math.random(player_pos.x - 5, player_pos.x + 2.5)
-			random_pos_z = math.random() + math.random(player_pos.z - 5, player_pos.z + 2.5)
-		end
-	end
-
-	random_pos_y = math.random() + math.random(player_pos.y + 10, player_pos.y + 15)
-	return random_pos_x, random_pos_y, random_pos_z
-end
-
 local t, wci = 0, mcl_weather.check_interval
 
 minetest.register_globalstep(function(dtime)