improved rain efficiency

.luacheckrc

@@ -1,5 +1,5 @@
 unused_args = false
-allow_defined_top = true
+allow_defined_top = false
 
 globals = {
     "minetest",

engine.lua

@@ -28,7 +28,7 @@ local timer = 0 -- A timer to create climates each x seconds an for lightning to
 
 --Helper Functions
 
-function remove_table_by_key(tab, key)
+local function remove_table_by_key(tab, key)
 	local i = 0
 	local keys, values = {},{}
 	for k, v in pairs(tab) do
@@ -135,20 +135,20 @@ register_downfall("rain", {
 	min_pos = {x = -15, y = 10, z = -15},
 	max_pos = {x = 15, y = 10, z = 15},
 	falling_speed = 10,
-	amount = 20,
+	amount = 8,
 	exptime = 1,
-	size = 1,
+	size = 2,
-	texture = "climatez_rain.png",
+	texture = {"climatez_rain.png", "climatez_rain2.png", "climatez_rain3.png"},
 })
 
 register_downfall("storm", {
 	min_pos = {x = -15, y = 20, z = -15},
 	max_pos = {x = 15, y = 20, z = 15},
 	falling_speed = 20,
-	amount = 30,
+	amount = 20,
 	exptime = 1,
-	size = 1,
+	size = 1.5,
-	texture = "climatez_rain.png",
+	texture = {"climatez_rain.png", "climatez_rain2.png", "climatez_rain3.png"},
 })
 
 register_downfall("snow", {