Extra error checking.

village.lua

@@ -29,7 +29,7 @@ if mobs and mobs.mod == "redo" then
 		end
 	end
 	local function savage_gathering(self)
-		if not fun_caves.custom_ready(self) then
+		if not (self and fun_caves.custom_ready(self)) then
 			return
 		end
 
@@ -45,7 +45,10 @@ if mobs and mobs.mod == "redo" then
 				local p = soil[math.random(#soil)]
 				p.y = p.y + 1
 				minetest.add_node(p, {name = 'farming:seed_wheat', param2 = 1})
-				minetest.get_node_timer(p):start(math.random(166, 286))
+				local timer = minetest.get_node_timer(p)
+				if timer then
+					timer:start(math.random(166, 286))
+				end
 			end
 		end
 
@@ -115,6 +118,10 @@ end
 
 
 local function build_hut(data, area, node, pos, turf)
+	if not (data and area and node and pos and turf and type(data) == 'table') then
+		return
+	end
+
 	local door = {x = ({2,7})[math.random(2)], z = ({2,7})[math.random(2)]}
 
 	for z = 1, 8 do
@@ -151,6 +158,10 @@ local function build_hut(data, area, node, pos, turf)
 end
 
 fun_caves.village = function(minp, maxp, data, p2data, area, node, biome, heightmap)
+	if not (minp and maxp and data and p2data and area and node and type(data) == 'table' and type(p2data) == 'table') then
+		return
+	end
+
 	if not biome or math.random(10) ~= 1 then
 		return
 	end