code tweaks and new settings

api.lua

@@ -1,9 +1,9 @@
 
--- Mobs Api (7th July 2017)
+-- Mobs Api (8th July 2017)
 
 mobs = {}
 mobs.mod = "redo"
-mobs.version = "20170707"
+mobs.version = "20170708"
 
 
 -- Intllib
@@ -64,6 +64,13 @@ local enable_pathfinding = true
 local stuck_timeout = 3 -- how long before mob gets stuck in place and starts searching
 local stuck_path_timeout = 10 -- how long will mob follow path before giving up
 
+-- default nodes
+local node_fire = "fire:basic_flame"
+local node_permanent_flame = "fire:permanent_flame"
+local node_ice = "default:ice"
+local node_snowblock = "default:snowblock"
+local node_snow = "default:snow"
+mobs.fallback_node = minetest.registered_aliases["mapgen_dirt"] or "default:dirt"
 
 -- play sound
 local mob_sound = function(self, sound)
@@ -242,9 +249,10 @@ end
 local flight_check = function(self, pos_w)
 
 	local nod = self.standing_in
+	local def = minetest.registered_nodes[nod]
 
 	if type(self.fly_in) == "string"
-	and (nod == self.fly_in or nod == self.fly_in:gsub("_source", "_flowing")) then
+	and (nod == self.fly_in or def.liquid_alternative_flowing ~= "") then
 
 		return true
 
@@ -252,7 +260,7 @@ local flight_check = function(self, pos_w)
 
 		for _,fly_in in pairs(self.fly_in) do
 
-			if nod == fly_in or nod == fly_in:gsub("_source", "_flowing") then
+			if nod == fly_in or def.liquid_alternative_flowing ~= "" then
 
 				return true
 			end
@@ -507,7 +515,7 @@ end
 -- get node but use fallback for nil or unknown
 local node_ok = function(pos, fallback)
 
-	fallback = fallback or "default:dirt"
+	fallback = fallback or mobs.fallback_node
 
 	local node = minetest.get_node_or_nil(pos)
 
@@ -598,8 +606,8 @@ local do_env_damage = function(self)
 	-- lava or fire
 	elseif self.lava_damage
 	and (nodef.groups.lava
-	or self.standing_in == "fire:basic_flame"
-	or self.standing_in == "fire:permanent_flame") then
+	or self.standing_in == node_fire
+	or self.standing_in == node_permanent_flame) then
 
 		if self.lava_damage ~= 0 then
 
@@ -681,7 +689,7 @@ local do_jump = function(self)
 	})
 
 	-- thin blocks that do not need to be jumped
-	if nod.name == "default:snow" then
+	if nod.name == node_snow then
 		return false
 	end
 
@@ -1049,7 +1057,7 @@ local smart_mobs = function(self, s, p, dist, dtime)
 
 						if ndef1 and (ndef1.buildable_to or ndef1.groups.liquid) then
 
-								minetest.set_node(s, {name = "default:dirt"})
+								minetest.set_node(s, {name = mobs.fallback_node})
 						end
 					end
 
@@ -1511,7 +1519,7 @@ local do_states = function(self, dtime)
 				and minetest.registered_nodes[self.standing_in].groups.water) then
 
 				lp = minetest.find_node_near(s, 5, {"group:soil", "group:stone",
-					"group:sand", "default:ice", "default:snowblock"})
+					"group:sand", node_ice, node_snowblock})
 
 				-- did we find land?
 				if lp then
@@ -1675,6 +1683,8 @@ local do_states = function(self, dtime)
 
 					local pos = self.object:getpos()
 					local radius = self.explosion_radius or 1
+					local fire = self.explosion_fire or 1
+					local smoke = self.explosion_smoke or 1
 
 					-- dont damage anything if area protected or next to water
 					if minetest.find_node_near(pos, 1, {"group:water"})
@@ -1695,7 +1705,7 @@ local do_states = function(self, dtime)
 
 					pos.y = pos.y - 1
 
-					mobs:explosion(pos, radius, 1, 1, self.sounds.explode)
+					mobs:explosion(pos, radius, fire, smoke, self.sounds.explode)
 
 					self.object:remove()
 
@@ -2622,6 +2632,8 @@ minetest.register_entity(name, {
 	pathfinding = def.pathfinding,
 	immune_to = def.immune_to or {},
 	explosion_radius = def.explosion_radius,
+	explosion_fire = def.explosion_fire,
+	explosion_smoke = def.explosion_smoke,
 	custom_attack = def.custom_attack,
 	double_melee_attack = def.double_melee_attack,
 	dogshoot_switch = def.dogshoot_switch,
@@ -2920,7 +2932,7 @@ function mobs:explosion(pos, radius, fire, smoke, sound)
 
 			if on_blast then
 
-				return on_blast(p)
+				on_blast(p)
 
 			elseif minetest.registered_nodes[n].groups.unbreakable == 1 then
 
@@ -2930,9 +2942,12 @@ function mobs:explosion(pos, radius, fire, smoke, sound)
 				-- after effects
 				if fire > 0
 				and (minetest.registered_nodes[n].groups.flammable
-				or random(1, 100) <= 30) then
+				or random(1, 100) < 60) then
 
-					minetest.set_node(p, {name = "fire:basic_flame"})
+					-- Set fire (if node is present)
+					if minetest.registered_nodes[node_fire] then
+						minetest.set_node(p, {name = node_fire})
+					end
 				else
 					minetest.set_node(p, {name = "air"})
 

api.txt

@@ -1,5 +1,5 @@
 
-MOB API (4th July 2017)
+MOB API (8th July 2017)
 
 The mob api is a function that can be called on by other mods to add new animals or monsters into minetest.
 
@@ -90,6 +90,8 @@ This functions registers a new mob as a Minetest entity.
         'double_melee_attack' if false then api will choose randomly between 'punch' and 'punch2' attack animations
         'on_blast' is called when an explosion happens near mob when using TNT functions, parameters are (object, damage) and returns (do_damage, do_knockback, drops)
         'explosion_radius' radius of explosion attack (defaults to 1)
+        'explosion_fire' if true, explosion will create lots of fire (default: true)
+        'explosion_smoke' if true, explosion creates smoke particles (default: true)
         'arrow' if the attack_type is "shoot" or "dogshoot" then the entity name of a pre-defined arrow is required, see below for arrow definition.
         'shoot_interval' the minimum shoot interval
         'shoot_offset' +/- value to position arrow/fireball when fired

crafts.lua

@@ -7,11 +7,13 @@ minetest.register_craftitem("mobs:nametag", {
 	inventory_image = "mobs_nametag.png",
 })
 
-core.register_craft({
-	type = "shapeless",
-	output = "mobs:nametag",
-	recipe = {"default:paper", "dye:black", "farming:string"},
-})
+if minetest.get_modpath("dye") and minetest.get_modpath("farming") then
+	minetest.register_craft({
+		type = "shapeless",
+		output = "mobs:nametag",
+		recipe = {"default:paper", "dye:black", "farming:string"},
+	})
+end
 
 -- leather
 minetest.register_craftitem("mobs:leather", {
@@ -46,14 +48,16 @@ minetest.register_tool("mobs:lasso", {
 	inventory_image = "mobs_magic_lasso.png",
 })
 
-minetest.register_craft({
-	output = "mobs:lasso",
-	recipe = {
-		{"farming:string", "", "farming:string"},
-		{"", "default:diamond", ""},
-		{"farming:string", "", "farming:string"},
-	}
-})
+if minetest.get_modpath("farming") then
+	minetest.register_craft({
+		output = "mobs:lasso",
+		recipe = {
+			{"farming:string", "", "farming:string"},
+			{"", "default:diamond", ""},
+			{"farming:string", "", "farming:string"},
+		}
+	})
+end
 
 minetest.register_alias("mobs:magic_lasso", "mobs:lasso")
 
@@ -63,14 +67,16 @@ minetest.register_tool("mobs:net", {
 	inventory_image = "mobs_net.png",
 })
 
-minetest.register_craft({
-	output = "mobs:net",
-	recipe = {
-		{"default:stick", "", "default:stick"},
-		{"default:stick", "", "default:stick"},
-		{"farming:string", "default:stick", "farming:string"},
-	}
-})
+if minetest.get_modpath("farming") then
+	minetest.register_craft({
+		output = "mobs:net",
+		recipe = {
+			{"group:stick", "", "group:stick"},
+			{"group:stick", "", "group:stick"},
+			{"farming:string", "group:stick", "farming:string"},
+		}
+	})
+end
 
 -- shears (right click to shear animal)
 minetest.register_tool("mobs:shears", {

depends.txt

@@ -1,4 +1,6 @@
 default
+dye?
+farming?
 invisibility?
 intllib?
 lucky_block?

mount.lua

@@ -12,7 +12,7 @@ local crash_threshold = 6.5 -- ignored if enable_crash=false
 
 local node_ok = function(pos, fallback)
 
-	fallback = fallback or "default:dirt"
+	fallback = fallback or mobs.fallback_node
 
 	local node = minetest.get_node_or_nil(pos)