Lava produce sparks

mods/ITEMS/mcl_core/README.txt

@@ -21,6 +21,14 @@ MIT License.
 The textures are taken from the Minecraft resource pack “Faithful 1.11” by Vattic and
 xMrVizzy and contributers.
 
+
+CC BY-SA 4.0
+
+mcl_core_lava_spark.png is based on the Pixel Perfection resource pack for Minecraft 1.11,
+authored by XSSheep.
+Source: <https://www.planetminecraft.com/texture_pack/131pixel-perfection/>
+License: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/)
+
 Sounds
 ======
 All sounds included in this mod are under the MIT License.

mods/ITEMS/mcl_core/functions.lua

@@ -54,6 +54,95 @@ minetest.register_abm({
 	end,
 })
 
+-- Production of sparks from lava
+minetest.register_abm({
+	label = "Lava produce sparks",
+	nodenames = {"group:lava"},
+	neighbors = {"air"},
+	interval = 1,
+	chance = 100,
+	action = function(pos, node)
+		local above = minetest.get_node(vector.new(pos.x, pos.y + 1, pos.z))
+		if above.name ~= "air" then return end
+		
+		local pos_addend = vector.new(
+			(math.random() - 0.5) * 0.8,
+			(math.random() - 0.5) * 0.8,
+			(math.random() - 0.5) * 0.8
+		)
+		local spark_pos = vector.add(pos, pos_addend)
+		local spark = minetest.add_entity(spark_pos, "mcl_core:lava_spark")
+		if not spark then return end
+		
+		local velocity = vector.new(
+			(math.random() - 0.5) * 3,
+			(math.random() + 2) * 2,
+			(math.random() - 0.5) * 3
+		)
+		spark:set_velocity(velocity)
+		
+		spark:set_acceleration(vector.new(0, -9, 0))
+		
+		-- Set a random size
+		local size = 0.2 + math.random() * 0.2
+		local props = spark:get_properties()
+		if not props then return end
+		props.visual_size = vector.new(size, size, size)
+		spark:set_properties(props)
+		
+		local luaentity = spark:get_luaentity()
+		if not luaentity then return end
+		luaentity._life_timer = 0.4 + math.random()
+	end
+})
+
+minetest.register_entity("mcl_core:lava_spark", {
+	physical = true,
+	visual = "sprite",
+	collide_with_objects = true,
+	textures = {"mcl_core_lava_spark.png"},
+	glow = 10,
+	static_save = false,
+	_smoke_timer = 0.1,
+	_life_timer = 1,
+	on_step = function(self, dtime)
+		if not self or not self.object then return end
+
+		self._life_timer = self._life_timer - dtime
+		if self._life_timer <= 0 then
+			self.object:remove()
+			return
+		end
+
+
+		self._smoke_timer = self._smoke_timer - dtime
+		if self._smoke_timer > 0 then return end
+		self._smoke_timer = math.random() * 0.4
+		
+		local pos = self.object:get_pos()
+
+		-- Add smoke
+		minetest.add_particlespawner({
+			amount = 3,
+			time = 0.001,
+			minpos = pos,
+			maxpos = pos,
+			minvel = vector.new(-0.1, 1, -0.1),
+			maxvel = vector.new(0.1, 1.5, 0.1),
+			minexptime = 0.1,
+			maxexptime = 0.6,
+			minsize = 0.5,
+			maxsize = 1.5,
+			texture = "mcl_particles_smoke_anim.png",
+			animation = {
+				type = "vertical_frames",
+				aspect_w = 8,
+				aspect_h = 8,
+			}
+		})
+	end
+})
+
 --
 -- Papyrus and cactus growing
 --