i pushed to the wrong repo ._. (#5)

* Hide crafting grid in player inventory

* Put all the MTG stuff in a modpack

---------

Co-authored-by: CrazyladMT <crazyladttd@outlook.com>

mods/mtg/default/item_entity.lua

@@ -0,0 +1,96 @@
+-- mods/default/item_entity.lua
+
+local builtin_item = minetest.registered_entities["__builtin:item"]
+
+-- strictly speaking none of this is part of the API, so do some checks
+-- and if it looks wrong skip the modifications
+if not builtin_item or type(builtin_item.set_item) ~= "function" or type(builtin_item.on_step) ~= "function" then
+	minetest.log("warning", "Builtin item entity does not look as expected, skipping overrides.")
+	return
+end
+
+local smoke_particles = {
+	amount = 3,
+	time = 0.1,
+	minpos = vector.new(-0.1, -0.1, -0.1),
+	maxpos = vector.new(0.1, 0.1, 0.1),
+	minvel = vector.new(0, 2.5, 0),
+	maxvel = vector.new(0, 2.5, 0),
+	minacc = vector.new(-0.15, -0.02, -0.15),
+	maxacc = vector.new(0.15, -0.01, 0.15),
+	minexptime = 4,
+	maxexptime = 6,
+	minsize = 5,
+	maxsize = 5,
+	collisiondetection = true,
+	texture = {
+		name = "default_item_smoke.png"
+	}
+}
+if minetest.features.particle_blend_clip then
+	smoke_particles.texture.blend = "clip"
+end
+
+local item = {
+	set_item = function(self, itemstring, ...)
+		builtin_item.set_item(self, itemstring, ...)
+
+		local stack = ItemStack(itemstring)
+		local itemdef = minetest.registered_items[stack:get_name()]
+		if itemdef and itemdef.groups.flammable ~= 0 then
+			self.flammable = itemdef.groups.flammable
+		end
+	end,
+
+	burn_up = function(self)
+		-- disappear in a smoke puff
+		local p = self.object:get_pos()
+		self.object:remove()
+		minetest.sound_play("default_item_smoke", {
+			pos = p,
+			gain = 1.0,
+			max_hear_distance = 8,
+		}, true)
+		local ps = table.copy(smoke_particles)
+		ps.minpos = vector.add(ps.minpos, p)
+		ps.maxpos = vector.add(ps.maxpos, p)
+		minetest.add_particlespawner(ps)
+	end,
+
+	on_step = function(self, dtime, ...)
+		builtin_item.on_step(self, dtime, ...)
+
+		if self.flammable then
+			-- flammable, check for igniters every 10 s
+			self.ignite_timer = (self.ignite_timer or 0) + dtime
+			if self.ignite_timer > 10 then
+				self.ignite_timer = 0
+
+				local pos = self.object:get_pos()
+				if pos == nil then
+					return -- object already deleted
+				end
+				local node = minetest.get_node_or_nil(pos)
+				if not node then
+					return
+				end
+
+				-- Immediately burn up flammable items in lava
+				if minetest.get_item_group(node.name, "lava") > 0 then
+					self:burn_up()
+				else
+					--  otherwise there'll be a chance based on its igniter value
+					local burn_chance = self.flammable
+						* minetest.get_item_group(node.name, "igniter")
+					if burn_chance > 0 and math.random(0, burn_chance) ~= 0 then
+						self:burn_up()
+					end
+				end
+			end
+		end
+	end,
+}
+
+-- set defined item as new __builtin:item, with the old one as fallback table
+setmetatable(item, { __index = builtin_item })
+minetest.register_entity(":__builtin:item", item)