Convert campfire particle spawning from ABM to particle spawner

mods/ITEMS/mcl_campfires/api.lua

@@ -161,6 +161,75 @@ function mcl_campfires.cook_item(pos, elapsed)
 	end
 end
 
+local function destroy_particle_spawner (pos)
+	local meta = minetest.get_meta(pos)
+	local part_spawn_id = meta:get_int("particle_spawner_id")
+	if part_spawn_id and part_spawn_id > 0 then
+		minetest.delete_particlespawner(part_spawn_id)
+	end
+end
+
+
+local function create_smoke_partspawner (pos, constructor)
+	if not constructor then
+		destroy_particle_spawner (pos)
+	end
+
+	local haybale = false
+
+	local node_below = vector.offset(pos, 0, -1, 0)
+	if minetest.get_node(node_below).name == "mcl_farming:hay_block" then
+		haybale = true
+	end
+
+	local smoke_timer
+
+	if haybale then
+		smoke_timer = 8
+	else
+		smoke_timer = 4.75
+	end
+
+	local spawner_id = minetest.add_particlespawner({
+		amount = 3,
+		time = 0,
+		minpos = vector.add(pos, vector.new(-0.25, 0, -0.25)),
+		maxpos = vector.add(pos, vector.new( 0.25, 0,  0.25)),
+		minvel = vector.new(-0.2, 0.5, -0.2),
+		maxvel = vector.new(0.2, 1,  0.2),
+		minacc = vector.new(0, 0.5, 0),
+		maxacc = vector.new(0, 0.5, 0),
+		minexptime = smoke_timer,
+		maxexptime = smoke_timer * 2,
+		minsize = 6,
+		maxsize = 8,
+		collisiondetection = true,
+		vertical = false,
+		texture = "mcl_campfires_particle_1.png",
+		texpool = {
+			"mcl_campfires_particle_1.png";
+			{ name = "mcl_campfires_particle_1.png", fade = "out" },
+			{ name = "mcl_campfires_particle_2.png" },
+			{ name = "mcl_campfires_particle_3.png" },
+			{ name = "mcl_campfires_particle_4.png" },
+			{ name = "mcl_campfires_particle_5.png" },
+			{ name = "mcl_campfires_particle_6.png" },
+			{ name = "mcl_campfires_particle_7.png" },
+			{ name = "mcl_campfires_particle_8.png" },
+			{ name = "mcl_campfires_particle_9.png" },
+			{ name = "mcl_campfires_particle_10.png" },
+			{ name = "mcl_campfires_particle_11.png" },
+			{ name = "mcl_campfires_particle_11.png" },
+			{ name = "mcl_campfires_particle_12.png" },
+		}
+	})
+
+	local meta = minetest.get_meta(pos)
+	meta:set_int("particle_spawner_id", spawner_id)
+end
+
+
+
 function mcl_campfires.register_campfire(name, def)
 	-- Define Campfire
 	minetest.register_node(name, {
@@ -207,7 +276,8 @@ function mcl_campfires.register_campfire(name, def)
 		drawtype = "mesh",
 		mesh = "mcl_campfires_campfire.obj",
 		tiles = {
-			{name=def.fire_texture,
+			{
+				name=def.fire_texture,
 				animation={
 					type="vertical_frames",
 					aspect_w=32,
@@ -215,14 +285,16 @@ function mcl_campfires.register_campfire(name, def)
 					length=2.0
 				 }}
 		},
-		overlay_tiles = {{
+		overlay_tiles = {
+			{
 				 name=def.lit_logs_texture,
 				 animation = {
 					 type = "vertical_frames",
 					 aspect_w = 32,
 					 aspect_h = 16,
 					 length = 2.0,
-			}},
+				 }
+			},
 		},
 		use_texture_alpha = "clip",
 		groups = { handy=1, axey=1, material_wood=1, lit_campfire=1 },
@@ -232,6 +304,10 @@ function mcl_campfires.register_campfire(name, def)
 			local meta = minetest.get_meta(pos)
 			local inv = meta:get_inventory()
 			inv:set_size("main", 4)
+			create_smoke_partspawner (pos, true)
+		end,
+		on_destruct = function(pos)
+			destroy_particle_spawner (pos)
 		end,
 		on_rightclick = function (pos, node, player, itemstack, pointed_thing)
 			local meta = minetest.get_meta(pos)
@@ -312,37 +388,12 @@ minetest.register_globalstep(function(dtime)
 	end
 end)
 
-function mcl_campfires.generate_smoke(pos, haybale)
+minetest.register_lbm({
-	local smoke_timer
-
-	if haybale then
-		smoke_timer = 8
-	else
-		smoke_timer = 4.75
-	end
-
-	minetest.add_particle({
-		pos = vector.offset(pos, math.random(-0.5, 0.5), 0, math.random(-0.5, 0.5)),
-		velocity = vector.new(0, 1, 0),
-		texture = "mcl_campfires_particle_" .. math.random(1, 12) .. ".png",
-		size = 10,
-		acceleration = vector.new(0, 0.5, 0),
-		collisiondetection = true,
-		expirationtime = smoke_timer,
-	})
-end
-
-minetest.register_abm({
 	label = "Campfire Smoke",
+	name = "mcl_campfires:campfire_smoke",
 	nodenames = {"group:lit_campfire"},
-	interval = 2,
+	run_at_every_load = true,
-	chance = 2,
 	action = function(pos, node)
-		local node_below = vector.offset(pos, 0, -1, 0)
+		create_smoke_partspawner (pos)
-		local haybale = false
-		if minetest.get_node(node_below).name == "mcl_farming:hay_block" then
-			haybale = true
-		end
-		mcl_campfires.generate_smoke(pos, haybale)
 	end,
 })