Rename weather_pack mod to mcl_weather

mods/ENVIRONMENT/mcl_weather/snow.lua

@@ -0,0 +1,97 @@
+mcl_weather.snow = {}
+
+mcl_weather.snow.particles_count = 15
+mcl_weather.snow.init_done = false
+
+-- calculates coordinates and draw particles for snow weather 
+mcl_weather.snow.add_snow_particles = function(player)
+  mcl_weather.rain.last_rp_count = 0
+  for i=mcl_weather.snow.particles_count, 1,-1 do
+    local random_pos_x, random_pos_y, random_pos_z = mcl_weather.get_random_pos_by_player_look_dir(player)
+    random_pos_y = math.random() + math.random(player:getpos().y - 1, player:getpos().y + 7)
+    if minetest.get_node_light({x=random_pos_x, y=random_pos_y, z=random_pos_z}, 0.5) == 15 then
+      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 = math.random(-1,-0.5), y = math.random(-2,-1), z = math.random(-1,-0.5)},
+        acceleration = {x = math.random(-1,-0.5), y=-0.5, z = math.random(-1,-0.5)},
+        expirationtime = 2.0,
+        size = math.random(0.5, 2),
+        collisiondetection = true,
+        collision_removal = true,
+        vertical = true,
+        texture = mcl_weather.snow.get_texture(),
+        playername = player:get_player_name()
+      })
+    end
+  end
+end
+
+mcl_weather.snow.set_sky_box = function()
+  mcl_weather.skycolor.add_layer(
+    "weather-pack-snow-sky",
+    {{r=0, g=0, b=0},
+    {r=241, g=244, b=249},
+    {r=0, g=0, b=0}}
+  )
+  mcl_weather.skycolor.active = true
+end
+
+mcl_weather.snow.clear = function() 
+  mcl_weather.skycolor.remove_layer("weather-pack-snow-sky")
+  mcl_weather.snow.init_done = false
+end
+
+-- Simple random texture getter
+mcl_weather.snow.get_texture = function()
+  local texture_name
+  local random_number = math.random()
+  if random_number > 0.5 then
+    texture_name = "weather_pack_snow_snowflake1.png"
+  else
+    texture_name = "weather_pack_snow_snowflake2.png"
+  end
+  return texture_name;
+end
+
+local timer = 0
+minetest.register_globalstep(function(dtime)
+  if mcl_weather.state ~= "snow" then 
+    return false
+  end
+  
+  timer = timer + dtime;
+  if timer >= 0.5 then
+    timer = 0
+  else
+    return
+  end
+
+  if mcl_weather.snow.init_done == false then
+    mcl_weather.snow.set_sky_box()
+    mcl_weather.snow.init_done = true
+  end
+
+  for _, player in ipairs(minetest.get_connected_players()) do
+    if (mcl_weather.is_underwater(player) or not mcl_util.has_weather(player:getpos())) then
+      return false
+    end
+    mcl_weather.snow.add_snow_particles(player)
+  end
+end)
+
+-- register snow weather
+if mcl_weather.reg_weathers.snow == nil then
+  mcl_weather.reg_weathers.snow = {
+    clear = mcl_weather.snow.clear,
+    -- 10min - 20min
+    min_duration = 600,
+    max_duration = 1200,
+    transitions = {
+      [65] = "none",
+      [80] = "rain",
+      [100] = "thunder",
+    }
+  }
+end
+