VoxeLibre/mods/ITEMS/mcl_campfires/api.lua

local S = minetest.get_translator(minetest.get_current_modname())
mcl_campfires = {}

local COOK_TIME = 30 -- Time it takes to cook food on a campfire.

local food_entity = {nil, nil, nil, nil}
local campfire_spots = {
	vector.new(-0.25, -0.04, -0.25),
	vector.new( 0.25, -0.04, -0.25),
	vector.new( 0.25, -0.04,  0.25),
	vector.new(-0.25, -0.04,  0.25),
}

local drop_inventory = mcl_util.drop_items_from_meta_container("main")

local function campfire_drops(pos, digger, drops, nodename)
	local wield_item = digger:get_wielded_item()
	local silk_touch = mcl_enchanting.has_enchantment(wield_item, "silk_touch")
	local is_creative = minetest.is_creative_enabled(digger:get_player_name())
	local inv = digger:get_inventory()
	if not is_creative then
		if silk_touch then
			minetest.add_item(pos, nodename)
		else
			minetest.add_item(pos, drops)
		end
	elseif is_creative and inv:room_for_item("main", nodename) and not inv:contains_item("main", nodename) then
		inv:add_item("main", nodename)
	end
end

local function drop_items(pos, node, oldmeta)
	local meta = minetest.get_meta(pos)
	drop_inventory(pos, node, oldmeta)
	local entites = minetest.get_objects_inside_radius(pos, 0.5)
	if entites then
		for _, food_entity in ipairs(entites) do
			if food_entity then
				if food_entity:get_luaentity().name == "mcl_campfires:food_entity" then
					food_entity:remove()
					for i = 1, 4 do
						meta:set_string("food_x_"..tostring(i), nil)
						meta:set_string("food_y_"..tostring(i), nil)
						meta:set_string("food_z_"..tostring(i), nil)
					end
				end
			end
		end
	end
end

local function on_blast(pos)
	local node = minetest.get_node(pos)
	drop_items(pos, node)
	minetest.remove_node(pos)
end

function mcl_campfires.light_campfire(pos)
	local campfire = minetest.get_node(pos)
	local name = campfire.name .. "_lit"
	minetest.set_node(pos, {name = name, param2 = campfire.param2})
end

-- on_rightclick function to take items that are cookable in a campfire, and put them in the campfire inventory
function mcl_campfires.take_item(pos, node, player, itemstack)
	local food_entity = {nil,nil,nil,nil}
	local is_creative = minetest.is_creative_enabled(player:get_player_name())
	local inv = player:get_inventory()
	local campfire_meta = minetest.get_meta(pos)
	local campfire_inv = campfire_meta:get_inventory()
	local timer = minetest.get_node_timer(pos)
	local stack = itemstack:peek_item(1)
	if minetest.get_item_group(itemstack:get_name(), "campfire_cookable") ~= 0 then
		local cookable = minetest.get_craft_result({method = "cooking", width = 1, items = {itemstack}})
		if cookable then
			for space = 1, 4 do -- Cycle through spots
				local spot = campfire_inv:get_stack("main", space)
				if not spot or spot == (ItemStack("") or ItemStack("nil")) then -- Check if the spot is empty or not
					if not is_creative then itemstack:take_item(1) end -- Take the item if in creative
					campfire_inv:set_stack("main", space, stack) -- Set the inventory itemstack at the empty spot
					campfire_meta:set_int("cooktime_"..tostring(space), COOK_TIME) -- Set the cook time meta
					food_entity[space] = minetest.add_entity(pos + campfire_spots[space], "mcl_campfires:food_entity") -- Spawn food item on the campfire
					local food_luaentity = food_entity[space]:get_luaentity()
					food_luaentity.wield_item = campfire_inv:get_stack("main", space):get_name() -- Set the wielditem of the food item to the food on the campfire
					food_luaentity.wield_image = "mcl_mobitems_"..string.sub(campfire_inv:get_stack("main", space):get_name(), 14).."_raw.png" -- Set the wield_image to the food item on the campfire
					food_entity[space]:set_properties(food_luaentity) -- Apply changes to the food entity
					campfire_meta:set_string("food_x_"..tostring(space), tostring(food_entity[space]:get_pos().x))
					campfire_meta:set_string("food_y_"..tostring(space), tostring(food_entity[space]:get_pos().y))
					campfire_meta:set_string("food_z_"..tostring(space), tostring(food_entity[space]:get_pos().z))
					break
				end
			end
		end
		timer:start(1) -- Start cook timer
	end
end

-- on_timer function to run the cook timer and cook items.
function mcl_campfires.cook_item(pos, elapsed)
	local meta = minetest.get_meta(pos)
	local inv = meta:get_inventory()
	local continue = 0
	-- Cycle through slots to cook them.
	for i = 1, 4 do
		local time_r = meta:get_int("cooktime_"..tostring(i))
		local item = inv:get_stack("main", i)
		local food_entity = nil
		local food_x = tonumber(meta:get_string("food_x_"..tostring(i)))
		local food_y = tonumber(meta:get_string("food_y_"..tostring(i)))
		local food_z = tonumber(meta:get_string("food_z_"..tostring(i)))
		if food_x and food_y and food_z then
			local entites = minetest.get_objects_inside_radius(vector.new(food_x, food_y, food_z), 0)
			if entites then
				for _, entity in ipairs(entites) do
					if entity then
						local luaentity = entity:get_luaentity()
						if luaentity then
							local name = luaentity.name
							if name == "mcl_campfires:food_entity" then
								food_entity = entity
								food_entity:set_properties({wield_item = inv:get_stack("main", i):get_name()})
							end
						end
					end
				end
			end
		end
		if item ~= (ItemStack("") or ItemStack("nil")) then
			-- Item hasn't been cooked completely, continue cook timer countdown.
			if time_r > 0 then
				meta:set_int("cooktime_"..tostring(i), time_r - 1)
			-- Item cook timer is up, finish cooking process and drop cooked item.
			elseif time_r <= 0 then
				local cooked = minetest.get_craft_result({method = "cooking", width = 1, items = {item}})
				if cooked then
					if food_entity then
						food_entity:remove() -- Remove visual food entity
						meta:set_string("food_x_"..tostring(i), nil)
						meta:set_string("food_y_"..tostring(i), nil)
						meta:set_string("food_z_"..tostring(i), nil)
						minetest.add_item(pos, cooked.item) -- Drop Cooked Item
						-- Throw some Experience Points because why not?
						-- Food is cooked, xp is deserved for using this unique cooking method. Take that Minecraft ;)
						local dir = vector.divide(minetest.facedir_to_dir(minetest.get_node(pos).param2),-1.95)
						mcl_experience.throw_xp(vector.add(pos, dir), 1)
						inv:set_stack("main", i, "") -- Clear Inventory
						continue  = continue + 1 -- Indicate that the slot is clear.
					end
				end
			end
		else
			continue = continue + 1
		end
	end
	-- Not all slots are empty, continue timer.
	if continue ~= 4 then
		return true
	-- Slots are empty, stop node timer.
	else
		return false
	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 = 4
	else
		smoke_timer = 2.4
	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", fade = "out" },
			{ name = "mcl_campfires_particle_3.png", fade = "out" },
			{ name = "mcl_campfires_particle_4.png", fade = "out" },
			{ name = "mcl_campfires_particle_5.png", fade = "out" },
			{ name = "mcl_campfires_particle_6.png", fade = "out" },
			{ name = "mcl_campfires_particle_7.png", fade = "out" },
			{ name = "mcl_campfires_particle_8.png", fade = "out" },
			{ name = "mcl_campfires_particle_9.png", fade = "out" },
			{ name = "mcl_campfires_particle_10.png", fade = "out" },
			{ name = "mcl_campfires_particle_11.png", fade = "out" },
			{ name = "mcl_campfires_particle_11.png", fade = "out" },
			{ name = "mcl_campfires_particle_12.png", fade = "out" },
		}
	})

	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, {
		description = def.description,
		_tt_help = S("Cooks food and keeps bees happy."),
		_doc_items_longdesc = S("Campfires have multiple uses, including keeping bees happy, cooking raw meat and fish, and as a trap."),
		inventory_image = def.inv_texture,
		wield_image = def.inv_texture,
		drawtype = "mesh",
		mesh = "mcl_campfires_campfire.obj",
		tiles = {{name="mcl_campfires_log.png"},},
		use_texture_alpha = "clip",
		groups = { handy=1, axey=1, material_wood=1, not_in_creative_inventory=1, campfire=1, },
		paramtype = "light",
		paramtype2 = "4dir",
		_on_ignite = function(player, node)
			mcl_campfires.light_campfire(node.under)
			return true
		end,
		drop = "",
		sounds = mcl_sounds.node_sound_wood_defaults(),
		selection_box = {
			type = 'fixed',
			fixed = {-.5, -.5, -.5, .5, -.05, .5}, --left, bottom, front, right, top
		},
		collision_box = {
			type = 'fixed',
			fixed = {-.5, -.5, -.5, .5, -.05, .5},
		},
		_mcl_blast_resistance = 2,
		_mcl_hardness = 2,
		after_dig_node = function(pos, node, oldmeta, digger)
			campfire_drops(pos, digger, def.drops, name.."_lit")
		end,
	})

	--Define Lit Campfire
	minetest.register_node(name.."_lit", {
		description = def.description,
		_tt_help = S("Cooks food and keeps bees happy."),
		_doc_items_longdesc = S("Campfires have multiple uses, including keeping bees happy, cooking raw meat and fish, and as a trap."),
		inventory_image = def.inv_texture,
		wield_image = def.inv_texture,
		drawtype = "mesh",
		mesh = "mcl_campfires_campfire.obj",
		tiles = {
			{
				name=def.fire_texture,
				animation={
					type="vertical_frames",
					aspect_w=32,
					aspect_h=16,
					length=0.8
				 }}
		},
		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 },
		paramtype = "light",
		paramtype2 = "4dir",
		on_construct = function(pos)
			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)
			local inv = meta:get_inventory()
			if not inv then inv:set_size("main", 4) end

			if minetest.get_item_group(itemstack:get_name(), "shovel") ~= 0 then
				local protected = mcl_util.check_position_protection(pos, player)
				if not protected then
					if not minetest.is_creative_enabled(player:get_player_name()) then
						-- Add wear (as if digging a shovely node)
						local toolname = itemstack:get_name()
						local wear = mcl_autogroup.get_wear(toolname, "shovely")
						if wear then
							itemstack:add_wear(wear)
							tt.reload_itemstack_description(itemstack) -- update tooltip
						end
					end
					node.name = name
					minetest.set_node(pos, node)
					minetest.sound_play("fire_extinguish_flame", {pos = pos, gain = 0.25, max_hear_distance = 16}, true)
				end
			elseif minetest.get_item_group(itemstack:get_name(), "campfire_cookable") ~= 0 then
				mcl_campfires.take_item(pos, node, player, itemstack)
			else
				if not pointed_thing then
					return itemstack
				end
				minetest.item_place_node(itemstack, player, pointed_thing)
			end
		end,
		on_timer = mcl_campfires.cook_item,
		drop = "",
		light_source = def.lightlevel,
		sounds = mcl_sounds.node_sound_wood_defaults(),
		selection_box = {
			type = "fixed",
			fixed = {-.5, -.5, -.5, .5, -.05, .5}, --left, bottom, front, right, top
		},
		collision_box = {
			type = "fixed",
			fixed = {-.5, -.5, -.5, .5, -.05, .5},
		},
		_mcl_blast_resistance = 2,
		_mcl_hardness = 2,
		damage_per_second = def.damage, -- FIXME: Once entity burning is fixed, this needs to be removed.
		on_blast = on_blast,
		after_dig_node = function(pos, node, oldmeta, digger)
			drop_items(pos, node, oldmeta)
			campfire_drops(pos, digger, def.drops, name.."_lit")
		end,
		_mcl_campfires_smothered_form = name,
	})
end

local function burn_in_campfire(obj)
	local p = obj:get_pos()
	if p then
		local n = minetest.find_node_near(p,0.4,{"group:lit_campfire"},true)
		if n then
			mcl_burning.set_on_fire(obj, 5)
		end
	end
end

local etime = 0
minetest.register_globalstep(function(dtime)
	etime = dtime + etime
	if etime < 0.5 then return end
	etime = 0
	for _,pl in pairs(minetest.get_connected_players()) do
		local armor_feet = pl:get_inventory():get_stack("armor", 5)
		if pl and pl:get_player_control().sneak or (minetest.global_exists("mcl_enchanting") and mcl_enchanting.has_enchantment(armor_feet, "frost_walker")) or (minetest.global_exists("mcl_potions") and mcl_potions.has_effect(pl, "fire_proof")) then
			return
		end
		burn_in_campfire(pl)
	end
	for _,ent in pairs(minetest.luaentities) do
		if ent.is_mob then
			burn_in_campfire(ent.object) -- FIXME: Mobs don't seem to burn properly anymore.
		end
	end
end)

minetest.register_lbm({
	label = "Campfire Smoke",
	name = "mcl_campfires:campfire_smoke",
	nodenames = {"group:lit_campfire"},
	run_at_every_load = true,
	action = function(pos, node)
		create_smoke_partspawner (pos)
	end,
})