Add setting to chance spawn mapblock limit

README.md

@@ -20,28 +20,32 @@ An explosive nuisance for [Minetest](http://minetest.net/).
 Settings:
 - ***sneeker.spawn_chance***
   - Sets possibility for spawn.
-	- type: int
-	- default: 10000
+  - type: int
+  - default: 10000
 - ***sneeker.spawn_interval***
   - Sets frequency of spawn chance.
-	- type: int
-	- default: 240 (4 minutes)
+  - type: int
+  - default: 240 (4 minutes)
 - ***sneeker.spawn_minlight***
   - Sets the minimum light that a node must have for spawn to occur.
-	- type: int
-	- default: 0
+  - type: int
+  - default: 0
 - ***sneeker.spawn_maxlight***
   - Sets the maximum light that a node can have for spawn to occur.
-	- type: int
-	- default: 9
+  - type: int
+  - default: 9
 - ***sneeker.spawn_minheight***
   - Sets the maximum light that a node can have for spawn to occur.
-	- type: int
-	- default: -31000
+  - type: int
+  - default: -31000
 - ***sneeker.spawn_maxheight***
   - Sets the lowest position at which sneeker can spawn.
-	- type: int
-	- default 31000
+  - type: int
+  - default 31000
+- ***sneeker.spawn_mapblock_limit***
+  - Limits the number of entities that can spawn per mapblock (16x16x16).
+  - type: int
+  - default: 1
 
 ---
 ### Links:

settings.lua

@@ -44,3 +44,8 @@ sneeker.spawn_minheight = tonumber(core.settings:get("sneeker.spawn_minheight")
 --
 --  @setting sneeker.spawn_maxheight
 sneeker.spawn_maxheight = tonumber(core.settings:get("sneeker.spawn_maxheight") or 31000)
+
+--- Limits the number of entities that can spawn per mapblock (16x16x16).
+--
+--  Default: 1
+sneeker.spawn_mapblock_limit = tonumber(core.settings:get("sneeker.spawn_mapblock_limit") or 1)

settingtypes.txt

@@ -21,3 +21,6 @@ sneeker.spawn_minheight (Sneeker min spawn height) int -31000
 
 # Sets the highest position at which sneeker can spawn.
 sneeker.spawn_maxheight (Sneeker max spawn height) int 31000
+
+# Limits the number of entities that can spawn per mapblock (16x16x16).
+sneeker.spawn_mapblock_limit (Sneeker spawn limit) int 1

spawn.lua

@@ -22,15 +22,13 @@ core.register_abm({
 	neighbors = {"air"},
 	interval = sneeker.spawn_interval,
 	chance = sneeker.spawn_chance,
-	action = function(pos, node, _, active_object_count_wider)
-		if active_object_count_wider > 5 then
-			return
-		end
+	action = function(pos, node, aoc, aocw)
+		if aoc >= sneeker.spawn_mapblock_limit then return end
 
-		if pos.y > sneeker.spawn_maxheight then
-			return
-		end
-		if pos.y < sneeker.spawn_minheight then
+		-- check above target node
+		pos.y = pos.y+1
+
+		if pos.y > sneeker.spawn_maxheight or pos.y < sneeker.spawn_minheight then
 			return
 		end