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path: root/itemframes/init.lua
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local S = homedecor_i18n.gettext

local tmp = {}
screwdriver = screwdriver or {}

minetest.register_entity("itemframes:item",{
	hp_max = 1,
	visual="wielditem",
	visual_size={x = 0.33, y = 0.33},
	collisionbox = {0, 0, 0, 0, 0, 0},
	physical = false,
	textures = {"air"},
	on_activate = function(self, staticdata)
		if tmp.nodename ~= nil and tmp.texture ~= nil then
			self.nodename = tmp.nodename
			tmp.nodename = nil
			self.texture = tmp.texture
			tmp.texture = nil
		else
			if staticdata ~= nil and staticdata ~= "" then
				local data = staticdata:split(';')
				if data and data[1] and data[2] then
					self.nodename = data[1]
					self.texture = data[2]
				end
			end
		end
		if self.texture ~= nil then
			self.object:set_properties({textures = {self.texture}})
		end
		if self.nodename == "itemframes:pedestal" then
			self.object:set_properties({automatic_rotate = 1})
		end
		if self.texture ~= nil and self.nodename ~= nil then
			local entity_pos = vector.round(self.object:get_pos())
			local objs = minetest.get_objects_inside_radius(entity_pos, 0.5)
			for _, obj in ipairs(objs) do
				if obj ~= self.object and
				   obj:get_luaentity() and
				   obj:get_luaentity().name == "itemframes:item" and
				   obj:get_luaentity().nodename == self.nodename and
				   obj:get_properties() and
				   obj:get_properties().textures and
				   obj:get_properties().textures[1] == self.texture then
					minetest.log("action","[itemframes] Removing extra " ..
						self.texture .. " found in " .. self.nodename .. " at " ..
						minetest.pos_to_string(entity_pos))
					self.object:remove()
					break
				end
			end
		end
	end,
	get_staticdata = function(self)
		if self.nodename ~= nil and self.texture ~= nil then
			return self.nodename .. ';' .. self.texture
		end
		return ""
	end,
})

local facedir = {}

facedir[0] = {x = 0, y = 0, z = 1}
facedir[1] = {x = 1, y = 0, z = 0}
facedir[2] = {x = 0, y = 0, z = -1}
facedir[3] = {x = -1, y = 0, z = 0}

local remove_item = function(pos, node)
	local objs = nil
	if node.name == "itemframes:frame" then
		objs = minetest.get_objects_inside_radius(pos, .5)
	elseif node.name == "itemframes:pedestal" then
		objs = minetest.get_objects_inside_radius({x=pos.x,y=pos.y+1,z=pos.z}, .5)
	end
	if objs then
		for _, obj in ipairs(objs) do
			if obj and obj:get_luaentity() and obj:get_luaentity().name == "itemframes:item" then
				obj:remove()
			end
		end
	end
end

local update_item = function(pos, node)
	remove_item(pos, node)
	local meta = minetest.get_meta(pos)
	if meta:get_string("item") ~= "" then
		if node.name == "itemframes:frame" then
			local posad = facedir[node.param2]
			if not posad then return end
			pos.x = pos.x + posad.x * 6.5 / 16
			pos.y = pos.y + posad.y * 6.5 / 16
			pos.z = pos.z + posad.z * 6.5 / 16
		elseif node.name == "itemframes:pedestal" then
			pos.y = pos.y + 12 / 16 + 0.33
		end
		tmp.nodename = node.name
		tmp.texture = ItemStack(meta:get_string("item")):get_name()
		local e = minetest.add_entity(pos,"itemframes:item")
		if node.name == "itemframes:frame" then
			local yaw = math.pi * 2 - node.param2 * math.pi / 2
			e:setyaw(yaw)
		end
	end
end

local drop_item = function(pos, node)
	local meta = minetest.get_meta(pos)
	if meta:get_string("item") ~= "" then
		if node.name == "itemframes:frame" then
			minetest.add_item(pos, meta:get_string("item"))
		elseif node.name == "itemframes:pedestal" then
			minetest.add_item({x=pos.x,y=pos.y+1,z=pos.z}, meta:get_string("item"))
		end
		meta:set_string("item","")
	end
	remove_item(pos, node)
end

minetest.register_node("itemframes:frame",{
	description = S("Item frame"),
	drawtype = "nodebox",
	node_box = {
		type = "fixed",
		fixed = {-0.5, -0.5, 7/16, 0.5, 0.5, 0.5}
	},
	selection_box = {
		type = "fixed",
		fixed = {-0.5, -0.5, 7/16, 0.5, 0.5, 0.5}
	},
	tiles = {"itemframes_frame.png"},
	inventory_image = "itemframes_frame.png",
	wield_image = "itemframes_frame.png",
	paramtype = "light",
	paramtype2 = "facedir",
	sunlight_propagates = true,
	groups = {choppy = 2, dig_immediate = 2},
	legacy_wallmounted = true,
	sounds = default.node_sound_wood_defaults(),
	on_rotate = screwdriver.disallow,
	after_place_node = function(pos, placer, itemstack)
		local meta = minetest.get_meta(pos)
		meta:set_string("owner",placer:get_player_name())
		meta:set_string("infotext", S("Item frame (owned by @1)", placer:get_player_name()))
	end,
	on_rightclick = function(pos, node, clicker, itemstack)
		if not itemstack then return end
		local meta = minetest.get_meta(pos)
		local name = clicker and clicker:get_player_name()
		if name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass") then
			drop_item(pos,node)
			local s = itemstack:take_item()
			meta:set_string("item",s:to_string())
			update_item(pos,node)
		end
		return itemstack
	end,
	on_punch = function(pos,node,puncher)
		local meta = minetest.get_meta(pos)
		local name = puncher and puncher:get_player_name()
		if name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass") then
			drop_item(pos, node)
		end
	end,
	can_dig = function(pos,player)
		if not player then return end
		local name = player and player:get_player_name()
		local meta = minetest.get_meta(pos)
		return name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass")
	end,
	on_destruct = function(pos)
		local meta = minetest.get_meta(pos)
		local node = minetest.get_node(pos)
		if meta:get_string("item") ~= "" then
			drop_item(pos, node)
		end
	end,
})


minetest.register_node("itemframes:pedestal",{
	description = S("Pedestal"),
	drawtype = "nodebox",
	node_box = {
		type = "fixed", fixed = {
			{-7/16, -8/16, -7/16, 7/16, -7/16, 7/16}, -- bottom plate
			{-6/16, -7/16, -6/16, 6/16, -6/16, 6/16}, -- bottom plate (upper)
			{-0.25, -6/16, -0.25, 0.25, 11/16, 0.25}, -- pillar
			{-7/16, 11/16, -7/16, 7/16, 12/16, 7/16}, -- top plate
		}
	},
	--selection_box = {
	--	type = "fixed",
	--	fixed = {-7/16, -0.5, -7/16, 7/16, 12/16, 7/16}
	--},
	tiles = {"itemframes_pedestal.png"},
	paramtype = "light",
	groups = {cracky = 3},
	sounds = default.node_sound_stone_defaults(),
	on_rotate = screwdriver.disallow,
	after_place_node = function(pos, placer, itemstack)
		local meta = minetest.get_meta(pos)
		meta:set_string("owner",placer:get_player_name())
		meta:set_string("infotext", S("Pedestal (owned by @1)", placer:get_player_name()))
	end,
	on_rightclick = function(pos, node, clicker, itemstack)
		if not itemstack then return end
		local meta = minetest.get_meta(pos)
		local name = clicker and clicker:get_player_name()
		if name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass") then
			drop_item(pos,node)
			local s = itemstack:take_item()
			meta:set_string("item",s:to_string())
			update_item(pos,node)
		end
		return itemstack
	end,
	on_punch = function(pos,node,puncher)
		local meta = minetest.get_meta(pos)
		local name = puncher and puncher:get_player_name()
		if name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass") then
			drop_item(pos,node)
		end
	end,
	can_dig = function(pos,player)
		if not player then return end
		local name = player and player:get_player_name()
		local meta = minetest.get_meta(pos)
		return name == meta:get_string("owner") or
				minetest.check_player_privs(name, "protection_bypass")
	end,
	on_destruct = function(pos)
		local meta = minetest.get_meta(pos)
		local node = minetest.get_node(pos)
		if meta:get_string("item") ~= "" then
			drop_item(pos, node)
		end
	end,
})

-- automatically restore entities lost from frames/pedestals
-- due to /clearobjects or similar
minetest.register_lbm({
	label = "Maintain itemframe and pedestal entities",
	name = "itemframes:maintain_entities",
	nodenames = {"itemframes:frame", "itemframes:pedestal"},
	run_at_every_load = true,
	action = function(pos, node)
		minetest.after(0,
			function(pos, node)
				local meta = minetest.get_meta(pos)
				local itemstring = meta:get_string("item")
				if itemstring ~= "" then
					local entity_pos = pos
					if node.name == "itemframes:pedestal" then
						entity_pos = {x=pos.x,y=pos.y+1,z=pos.z}
					end
					local objs = minetest.get_objects_inside_radius(entity_pos, 0.5)
					if #objs == 0 then
						minetest.log("action","[itemframes] Replacing missing " ..
							itemstring .. " in " .. node.name .. " at " ..
							minetest.pos_to_string(pos))
						update_item(pos, node)
					end
				end
			end,
		pos, node)
	end
})

-- crafts

minetest.register_craft({
	output = 'itemframes:frame',
	recipe = {
		{'group:stick', 'group:stick', 'group:stick'},
		{'group:stick', 'default:paper', 'default:stick'},
		{'group:stick', 'group:stick', 'group:stick'},
	}
})

minetest.register_craft({
	output = 'itemframes:pedestal',
	recipe = {
		{'default:stone', 'default:stone', 'default:stone'},
		{'', 'default:stone', ''},
		{'default:stone', 'default:stone', 'default:stone'},
	}
})

-- stop mesecon pistons from pushing itemframes and pedestals
if minetest.get_modpath("mesecons_mvps") then
	mesecon.register_mvps_stopper("itemframes:frame")
	mesecon.register_mvps_stopper("itemframes:pedestal")
end