tweak and tidy code

spider.lua

@@ -1,10 +1,8 @@
 -- Translation support
 local S = minetest.get_translator("mobs_monster")
 
--- check for default mod
-local mod_def = minetest.get_modpath("default")
+-- helper function
 
--- helper
 local get_velocity = function(self)
 
 	local v = self.object:get_velocity()
@@ -15,6 +13,7 @@ local get_velocity = function(self)
 	return (v.x * v.x + v.z * v.z) ^ 0.5
 end
 
+-- custom spider types
 
 local spider_types = {
 
@@ -55,7 +54,6 @@ local spider_types = {
 	}
 }
 
-
 -- Spider by AspireMint (CC-BY-SA 3.0 license)
 
 mobs:register_mob("mobs_monster:spider", {
@@ -98,16 +96,11 @@ mobs:register_mob("mobs_monster:spider", {
 	light_damage = 0,
 	node_damage = false, -- disable damage_per_second node damage
 	animation = {
-		speed_normal = 15,
-		speed_run = 20,
-		stand_start = 0,
-		stand_end = 0,
-		walk_start = 1,
-		walk_end = 21,
-		run_start = 1,
-		run_end = 21,
-		punch_start = 25,
-		punch_end = 45
+		speed_normal = 15, speed_run = 20,
+		stand_start = 0, stand_end = 0,
+		walk_start = 1, walk_end = 21,
+		run_start = 1, run_end = 21,
+		punch_start = 25, punch_end = 45
 	},
 
 	-- check surrounding nodes and spawn a specific spider
@@ -126,9 +119,7 @@ mobs:register_mob("mobs_monster:spider", {
 				self.object:set_properties({textures = tmp.skins})
 				self.docile_by_day = tmp.docile
 
-				if tmp.drops then
-					self.drops = tmp.drops
-				end
+				if tmp.drops then self.drops = tmp.drops end
 
 				if tmp.shoot then
 					self.attack_type = "dogshoot"
@@ -141,6 +132,7 @@ mobs:register_mob("mobs_monster:spider", {
 				end
 
 				if tmp.small then
+
 					self.object:set_properties({
 						collisionbox = {-0.2, -0.2, -0.2, 0.2, 0, 0.2},
 						visual_size = {x = 0.25, y = 0.25}
@@ -159,9 +151,7 @@ mobs:register_mob("mobs_monster:spider", {
 
 		-- quarter second timer
 		self.spider_timer = (self.spider_timer or 0) + dtime
-		if self.spider_timer < 0.25 then
-			return
-		end
+		if self.spider_timer < 0.25 then return end
 		self.spider_timer = 0
 
 		-- need to be stopped to go onwards
@@ -171,11 +161,7 @@ mobs:register_mob("mobs_monster:spider", {
 		end
 
 		local pos = self.object:get_pos()
-		local yaw = self.object:get_yaw()
-
-		-- sanity check
-		if not yaw then return end
-
+		local yaw = self.object:get_yaw() ; if not yaw then return end
 		local prop = self.object:get_properties()
 
 		pos.y = pos.y + prop.collisionbox[2] - 0.2
@@ -231,6 +217,7 @@ mobs:register_mob("mobs_monster:spider", {
 	end
 })
 
+-- where to spawn
 
 if not mobs.custom_spawn_monster then
 
@@ -262,15 +249,17 @@ if not mobs.custom_spawn_monster then
 	})
 end
 
+-- spawn egg
 
 mobs:register_egg("mobs_monster:spider", S("Spider"), "mobs_cobweb.png", 1)
 
+-- compatibility with older mobs mod
 
-mobs:alias_mob("mobs_monster:spider2", "mobs_monster:spider") -- compatibility
+mobs:alias_mob("mobs_monster:spider2", "mobs_monster:spider")
 mobs:alias_mob("mobs:spider", "mobs_monster:spider")
 
+-- cobweb and recipe
 
--- cobweb
 minetest.register_node(":mobs:cobweb", {
 	description = S("Cobweb"),
 	drawtype = "plantlike",
@@ -289,7 +278,7 @@ minetest.register_node(":mobs:cobweb", {
 	groups = {snappy = 1, disable_jump = 1},
 	is_ground_content = false,
 	drop = "farming:string",
-	sounds = mod_def and default.node_sound_leaves_defaults()
+	sounds = mobs.node_sound_leaves_defaults()
 })
 
 minetest.register_craft({
@@ -301,6 +290,7 @@ minetest.register_craft({
 	}
 })
 
+-- cobweb place function
 
 local web_place = function(pos)
 
@@ -313,6 +303,8 @@ local web_place = function(pos)
 	end
 end
 
+-- cobweb arrow
+
 mobs:register_arrow("mobs_monster:cobweb", {
 	visual = "sprite",
 	visual_size = {x = 1, y = 1},