Fixes

methods.lua

@@ -294,6 +294,7 @@ local function get_collision_single(pos, water)
 end
 
 function creatura.get_context_steering(self, goal, range, water)
+	if not goal then return end
 	local pos, yaw = self.object:get_pos(), self.object:get_yaw()
 	if not pos or not yaw then return end
 	range = range or 8; if range < 2 then range = 2 end
@@ -578,7 +579,7 @@ creatura.register_movement_method("creatura:context_based_steering", function(se
 	self:set_gravity(-9.8)
 	local function func(_self, goal, speed_factor)
 		local pos = _self.object:get_pos()
-		if not pos then return end
+		if not pos or not goal then return end
 		if vec_dist(pos, goal) < clamp(self.width, 0.5, 1) then
 			_self:halt()
 			return true

mob_meta.lua

@@ -391,13 +391,13 @@ function mob:get_wander_pos_3d(min_range, max_range, dir, vert_bias)
 	return pos2
 end
 
-function mob:is_pos_safe(pos)
+function mob:is_pos_safe(pos, ignore_liquid)
 	if not pos then return end
-	local node = minetest.get_node(pos)
-	if not node then return false end
-	if minetest.get_item_group(node.name, "igniter") > 0
-	or creatura.get_node_def(node.name).drawtype == "liquid"
-	or creatura.get_node_def(vec_raise(pos, -1)).drawtype == "liquid" then return false end
+	local n_def = creatura.get_node_def(pos)
+	if minetest.get_item_group(n_def.name, "igniter") > 0
+	or (not ignore_liquid
+	and (n_def.drawtype == "liquid"
+	or creatura.get_node_def(vec_raise(pos, -1)).drawtype == "liquid")) then return false end
 	local fall_safe = false
 	if self.max_fall ~= 0 then
 		for i = 1, self.max_fall or 3 do
@@ -1169,16 +1169,16 @@ function mob:_vitals()
 	if max_fall > 0
 	and not in_liquid then
 		local fall_start = self._fall_start or (not on_ground and pos.y)
-		if fall_start then
-			if on_ground then
-				damage = fall_start - pos.y
-				if damage < max_fall then
-					damage = 0
-				else
-					local resist = self.fall_resistance or 0
-					damage = damage - damage * resist
-					fall_start = nil
-				end
+		if fall_start
+		and on_ground then
+			damage = fall_start - pos.y
+			if damage < max_fall then
+				damage = 0
+				fall_start = nil
+			else
+				local resist = self.fall_resistance or 0
+				damage = damage - damage * resist
+				fall_start = nil
 			end
 		end
 		self._fall_start = fall_start

spawning.lua

@@ -19,8 +19,10 @@ end)
 -- Math --
 
 local abs = math.abs
+local ceil = math.ceil
 local pi = math.pi
 local random = math.random
+local min, max = math.min, math.max
 
 local function vec_raise(v, n)
 	return {x = v.x, y = v.y + n, z = v.z}
@@ -237,7 +239,7 @@ local function execute_spawns(player)
 			spawn_on)
 		if spawn_y_array[1] then
 			local spawn_pos = spawn_y_array[1]
-			local dist = vector.distance(pos, spawn_pos)
+			local dist = vec_dist(pos, spawn_pos)
 			if dist < min_spawn_radius or dist > max_spawn_radius then
 				return
 			end
@@ -273,13 +275,14 @@ local function execute_spawns(player)
 
 			local mob_def = minetest.registered_entities[mob]
 			local mob_width = mob_def.collisionbox[4]
-			local mob_height = math.max(0, mob_def.collisionbox[5] - mob_def.collisionbox[2])
+			local mob_height = max(0, mob_def.collisionbox[5] - mob_def.collisionbox[2])
 
 			if not creatura.is_pos_moveable(spawn_pos, mob_width, mob_height) then
 				return
 			end
 
 			local group_size = random(spawn.min_group or 1, spawn.max_group or 1)
+			group_size = min(spawn.spawn_cap - object_count, group_size)
 
 			if spawn.spawn_cluster then
 				minetest.add_node(spawn_pos, {name = "creatura:spawn_node"})
@@ -496,8 +499,8 @@ local min_abm_dist = tonumber(minetest.settings:get("creatura_min_abm_dist")) or
 
 local function can_spawn(pos, width, height)
 	local pos2
-	local w_iter = width / math.ceil(width)
-	for y = 0, height, height / math.ceil(height) do
+	local w_iter = width / ceil(width)
+	for y = 0, height, height / ceil(height) do
 		for z = -width, width, w_iter do
 			for x = -width, width, w_iter do
 				pos2 = {x = pos.x + x, y = pos.y + y, z = pos.z + z}
@@ -621,11 +624,11 @@ function creatura.register_abm_spawn(mob, def)
 
 		if group_size > 1 then
 			for _ = 1, group_size do
-				local offset = math.ceil(mob_width)
+				local offset = ceil(mob_width)
 				local spawn_pos = creatura.get_ground_level({
 					x = pos.x + random(-offset, offset),
 					y = pos.y,
-					z = pos.x + random(-offset, offset),
+					z = pos.z + random(-offset, offset)
 				}, 3)
 				if not can_spawn(spawn_pos, mob_width, mob_height) then
 					spawn_pos = pos