homedecor_modpack/fake_fire/modfiles/nodes.lua

local cp = nil

local function register_fake_fire(name, def)
	assert(name, "local registration called without name")
	assert(def, "local registration called without node definition")

	-- make sure shared definitions are set
	def.is_ground_content = true
	def.inventory_image = def.inventory_image or name.. ".png"
	def.drawtype = "plantlike"
	def.waving = 1 -- Waving wasn't an option when this mod was written. ~ LazyJ, 2014_03_13
	def.light_source = def.lightsource or 14
	-- Adding sunlight_propagtes and leaving comments as a future reference.
	-- If true, sunlight will go infinitely through this (no shadow is cast).
	-- Because fire produces light it should be "true" so fire *doesn't* have
	-- a shadow. 
	def.sunlight_propagates = true
	-- damage_per_second = 2*0.5, -- It's *fake* fire. PvP on our server has
	-- been disabled for a reason. I don't want griefers lighting players on
	-- fire or trapping them in blazes. ~ LazyJ, 2014_0_13

	def.groups = def.groups or {
		oddly_breakable_by_hand=3, dig_immediate=2,
		attached_node=1, not_in_creative_inventory=1
	}
	def.paramtype = "light"
	def.walkable = false
	def.drop = ""  -- So fire won't return to the inventory. ~ LazyJ
	def.sounds = def.sounds or minetest.sound_play("fire_small", {pos=cp, loop=true})
	def.buildable_to = true

	local swap_on_punch = def.swap_on_punch
	def.on_punch = def.on_punch or function (pos, node, puncher)
		-- A max_hear_distance of 20 may freak some players out by the "hiss"
		-- so I reduced it to 5.
		minetest.sound_play("fire_extinguish", {pos = pos, gain = 1.0, max_hear_distance = 5,})
		-- swap the node on_punch if def.swap_on_punch is set
		if swap_on_punch then
			minetest.set_node(pos, {name = swap_on_punch})
		end
	end

	-- no need to add these to the global registration table
	def.swap_on_punch = nil
	def.smoking = nil
	minetest.register_node("fake_fire:" .. name, def)
end

-- FLAME TYPES
register_fake_fire("fake_fire", {
	description = "Smokey, Fake Fire",
	tiles = {
		{name="fake_fire_animated.png", animation={type="vertical_frames",
		aspect_w=16, aspect_h=16, length=1.5}},
	},
	swap_on_punch = "fake_fire:smokeless_fire",
})

register_fake_fire("smokeless_fire", {
	description = "Smokeless, Fake Fire",
	tiles = {
		{name="fake_fire_animated.png", animation={type="vertical_frames",
		aspect_w=16, aspect_h=16, length=1.5}},
	},
	inventory_image = 'fake_fire.png',
	swap_on_punch = "fake_fire:fake_fire",
})

register_fake_fire("ice_fire", {
	description = "Smoky, Fake, Ice Fire",
	tiles = {
		{name="ice_fire_animated.png", animation={type="vertical_frames",
		aspect_w=16, aspect_h=16, length=1.5}},
	},
	swap_on_punch = "fake_fire:smokeless_ice_fire",
})

register_fake_fire("smokeless_ice_fire", {
	description = "Smokeless, Fake, Ice Fire",
	tiles = {
		{name="ice_fire_animated.png", animation={type="vertical_frames",
		aspect_w=16, aspect_h=16, length=1.5}},
	},
   	inventory_image = 'ice_fire.png',
	swap_on_punch = "fake_fire:ice_fire",
})

-- FLINT and STEEL
minetest.register_tool("fake_fire:flint_and_steel", {
	description = "Flint and steel",
	inventory_image = "flint_and_steel.png",
	liquids_pointable = false,
	stack_max = 1,
	tool_capabilities = {
		full_punch_interval = 1.0,
		max_drop_level=0,
		groupcaps={flamable = {uses=65, maxlevel=1},
		}
	},
	on_use = function(itemstack, user, pointed_thing)
	-- This next section took me a lot of keyboard bashing to figure out.
	-- The lua documentation and examples for Minetest are terrible.
	-- ~ LazyJ, 2014_06_23
	
		local snow_ice_list = {"snow", "ice",}
	
			for _, which_one_is_it in pairs(snow_ice_list) do
				local snow_ice = which_one_is_it
	
				if
					-- A *node*, not a player or sprite. ~ LazyJ
					pointed_thing.type == "node"
					
					--[[
						These next two "and nots" tell Minetest not to put the
						red	flame on snow and ice stuff. This "string" bit was
						the workable solution that took many hours, over
						several days, to finally come around to. It's a search
						for any node name that contains	whatever is between the
						double-quotes, ie. "snow" or "ice". I had been trying
						to identify the nodes by their group properties	and I
						couldn't figure out how to do it. The clue for the
						"string"came from Blockmen's "Landscape" mod.
				
						Another quirk is that the "string" doesn't work well
						with variable lists (see "snow_ice_list") when using
						"and not". Ice-fire would light on snow but when I
						clicked on ice, the regular	flame appeared. I couldn't
						understand what was happening until	I mentally changed
						the wording "and not" to "is not" and spoke	out-loud
						each thing that line of code was to accomplish:
				
						"Is not snow, then make fake-fire."
						"Is not ice, then make fake-fire."
				
						That's when I caught the problem.
				
						Ice *is not* snow, so Minetest was correctly following
						the	instruction, "Is not snow, then make fake-fire."
						and that is	why	fake-fire appeared instead of ice-fire
						when I clicked on ice.   
			 
						~ LazyJ
					--]]
									
				and not
				string.find(minetest.get_node(pointed_thing.under).name, "snow")
				and not
				string.find(minetest.get_node(pointed_thing.under).name, "ice")
				and
				minetest.get_node(pointed_thing.above).name == "air"
				then
					if not minetest.is_protected(pointed_thing.above, user:get_player_name()) then
						minetest.set_node(pointed_thing.above, {name="fake_fire:smokeless_fire"})						
					else
						minetest.chat_send_player(user:get_player_name(), "You can't set a fire in someone else's area!")
					end
			elseif

				pointed_thing.type == "node"
				and
				-- Split this "string" across several lines because I ran out
				-- of room while trying to adhere to the 80-column wide rule
				-- of coding style.
				string.find(
						minetest.get_node(pointed_thing.under).name,
						snow_ice
						)
				and 
				minetest.get_node(pointed_thing.above).name == "air"
				then
					if not minetest.is_protected(pointed_thing.above, user:get_player_name()) then
						minetest.set_node(pointed_thing.above, {name="fake_fire:smokeless_ice_fire"})						
					else
						minetest.chat_send_player(user:get_player_name(), "You can't set a fire in someone else's area!")
					end
			end -- Line 210, if
		end -- Line 207, for/do	
		
			minetest.sound_play("",
			{gain = 1.0, max_hear_distance = 2,})
			itemstack:add_wear(65535/65)
			return itemstack
	end
}) -- Closes the flint and steel tool registration



--[[
	
	SOME LESSONS LEARNED (and keeping this because I'll forget)
	
	flint_and_steel is registered as a tool. Tools do not materialize something
	like placing a block (on_construct) makes that block appear. Tools are
	*used* so "on_use" works but not "on_construct".

	on_rightclick is meant for the code of the thing being clicked on, not the
	code of the thing doing the clicking.
	
	~ LazyJ

--]]



-- ANIMATED, RISING, DISPAPPEARING SMOKE

--[[

	These next two sections of code are a real bonus that I figured out how
	to pull-off. ;)

	The first section creates animated smoke. Trying to figure out how to make
	the animation appear to go upward was a headache.

	The second section places the animated smoke *only* above the fake-fire
	*if* there is nothing but air straight above the fake-fire. I also made
	the smoke skip a space so it looks more like puffs of smoke and made it
	stretch high enough to be used in chimneys. For large builds, a second
	fake-fire will have to be hidden close to the top of the chimney so the
	smoke will be visible. The smoke also emmits a low-level light.

	Yup, I'm proud of this little addition I've made to Semmett9's mod. :D

	~ LazyJ, 2014_03_15

--]]



-- EMBERS

minetest.register_node("fake_fire:embers", {
    description = "Glowing Embers",
	tiles = {
		{name="embers_animated.png", animation={type="vertical_frames",
		aspect_w=16, aspect_h=16, length=2}},
		},
	inventory_image = minetest.inventorycube('fake_fire_embers.png'),
	is_ground_content = true,
	light_source = 9,
	-- Adding sunlight_propagtes and leaving comments as a future reference.
	-- If true, sunlight will go infinitely through this (no shadow is cast).
	-- Because embers produce some light it should be somewhat "true" but this
	-- is an area where Minetest lacks in subtlety so I'm opting for 100% that
	-- embers *don't* have a shadow. 
	sunlight_propagates = true,
	 -- It's almost soft, brittle charcoal. ~ LazyJ
	groups = {choppy=3, crumbly=3, oddly_breakable_by_hand=3},
	paramtype = "light",
	 -- You never know when a creative builder may use the screwdriver or
	 -- position to create a subtle effect that makes their creation just
	 -- that little bit nicer looking. ~ Lazyj
	paramtype2 = "facedir",
	walkable = true,
	sounds = minetest.sound_play("fire_small", {pos=cp, loop=true}),
})



-- CHIMNEY TOPS

	-- Stone (cool tone) to go with cool colors.
	-- Sandstone (warm tone) to go with warm colors.

-- CHIMNEY TOP - STONE
minetest.register_node("fake_fire:chimney_top_stone", {
	description = "Chimney Top - Stone",
	tiles = {"chimney_top_stone.png", "default_stone.png"},
	is_ground_content = true,
	groups = {cracky=3, oddly_breakable_by_hand=1, not_in_creative_inventory=1},
	paramtype = "light",
	sounds = default.node_sound_stone_defaults(),
	drop = "fake_fire:smokeless_chimney_top_stone",
	drawtype = "nodebox",
	node_box = {
			type = "fixed",
			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
		},
	on_punch = function (pos,node,puncher)
		-- This swaps the smokeless version with the smoky version when punched.
		-- ~ LazyJ
		minetest.set_node(pos, {name = "fake_fire:smokeless_chimney_top_stone"})
	end
})



-- CHIMNEY TOP - SANDSTONE
minetest.register_node("fake_fire:chimney_top_sandstone", {
	description = "Chimney Top - Sandstone",
	tiles = {"chimney_top_sandstone.png", "default_sandstone.png"},
	is_ground_content = true,
	groups = {cracky=3, oddly_breakable_by_hand=1, not_in_creative_inventory=1},
	paramtype = "light",
	sounds = default.node_sound_stone_defaults(),
	drop = "fake_fire:smokeless_chimney_top_sandstone",
	drawtype = "nodebox",
	node_box = {
			type = "fixed",
			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
		},
	on_punch = function (pos,node,puncher)
		-- This swaps the smokeless version with the smoky version when punched.
		-- ~ LazyJ
		minetest.set_node(pos,
		{name = "fake_fire:smokeless_chimney_top_sandstone"})
	end
})



-- SMOKELESS CHIMNEY TOPS

	-- Some players may want a chimney top *without* smoke. This is the node
	-- that will be craftable. To get the smoking variety, simply punch the
	-- node. Same approach is used with the smoking and non-smoking flames.
	-- ~ LazyJ
	
-- SMOKELESS CHIMNEY TOP - STONE
minetest.register_node("fake_fire:smokeless_chimney_top_stone", {
	description = "Chimney Top - Stone",
	tiles = {"chimney_top_stone.png", "default_stone.png"},
	is_ground_content = true,
	groups = {cracky=3, oddly_breakable_by_hand=1},
	paramtype = "light",
	sounds = default.node_sound_stone_defaults(),
	drawtype = "nodebox",
	node_box = {
			type = "fixed",
			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
		},
	on_punch = function (pos,node,puncher)
		-- This swaps the smokeless version with the smoky version when punched.
		-- ~ LazyJ
		minetest.set_node(pos, {name = "fake_fire:chimney_top_stone"})
	end
})



-- SMOKELESS CHIMNEY TOP - SANDSTONE
minetest.register_node("fake_fire:smokeless_chimney_top_sandstone", {
	description = "Chimney Top - Sandstone",
	tiles = {"chimney_top_sandstone.png", "default_sandstone.png"},
	is_ground_content = true,
	groups = {cracky=3, oddly_breakable_by_hand=1},
	paramtype = "light",
	sounds = default.node_sound_stone_defaults(),
	drawtype = "nodebox",
	node_box = {
			type = "fixed",
			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
		},
	on_punch = function (pos,node,puncher)
		-- This swaps the smokeless version with the smoky version when punched.
		-- ~ LazyJ
		minetest.set_node(pos, {name = "fake_fire:chimney_top_sandstone"})
	end
})