data/skybox3.png

-- Minetest: builtin/item.lua

local builtin_shared = ...

--
-- Falling stuff
--

core.register_entity(":__builtin:falling_node", {
	initial_properties = {
		visual = "wielditem",
		visual_size = {x = 0.667, y = 0.667},
		textures = {},
		physical = true,
		is_visible = false,
		collide_with_objects = false,
		collisionbox = {-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
	},

	node = {},
	meta = {},

	set_node = function(self, node, meta)
		self.node = node
		meta = meta or {}
		if type(meta.to_table) == "function" then
			meta = meta:to_table()
		end
		for _, list in pairs(meta.inventory or {}) do
			for i, stack in pairs(list) do
				if type(stack) == "userdata" then
					list[i] = stack:to_string()
				end
			end
		end
		self.meta = meta
		self.object:set_properties({
			is_visible = true,
			textures = {node.name},
		})
	end,

	get_staticdata = function(self)
		local ds = {
			node = self.node,
			meta = self.meta,
		}
		return core.serialize(ds)
	end,

	on_activate = function(self, staticdata)
		self.object:set_armor_groups({immortal = 1})

		local ds = core.deserialize(staticdata)
		if ds and ds.node then
			self:set_node(ds.node, ds.meta)
		elseif ds then
			self:set_node(ds)
		elseif staticdata ~= "" then
			self:set_node({name = staticdata})
		end
	end,

	on_step = function(self, dtime)
		-- Set gravity
		local acceleration = self.object:get_acceleration()
		if not vector.equals(acceleration, {x = 0, y = -10, z = 0}) then
			self.object:set_acceleration({x = 0, y = -10, z = 0})
		end
		-- Turn to actual node when colliding with ground, or continue to move
		local pos = self.object:get_pos()
		-- Position of bottom center point
		local bcp = {x = pos.x, y = pos.y - 0.7, z = pos.z}
		-- 'bcn' is nil for unloaded nodes
		local bcn = core.get_node_or_nil(bcp)
		-- Delete on contact with ignore at world edges
		if bcn and bcn.name == "ignore" then
			self.object:remove()
			return
		end
		local bcd = bcn and core.registered_nodes[bcn.name]
		if bcn and
				(not bcd or bcd.walkable or
				(core.get_item_group(self.node.name, "float") ~= 0 and
				bcd.liquidtype ~= "none")) then
			if bcd and bcd.leveled and
					bcn.name == self.node.name then
				local addlevel = self.node.level
				if not addlevel or addlevel <= 0 then
					addlevel = bcd.leveled
ofs	hex dump	ascii
0000	89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 20 00 00 00 18 08 02 00 00 00 14 31 68	.PNG........IHDR..............1h
0020	63 00 00 00 01 73 52 47 42 00 ae ce 1c e9 00 00 00 09 70 48 59 73 00 00 0b 13 00 00 0b 13 01 00	c....sRGB.........pHYs..........
0040	9a 9c 18 00 00 00 07 74 49 4d 45 07 db 04 1d 0c 39 2d a1 9f 47 65 00 00 00 1d 69 54 58 74 43 6f	.......tIME.....9-..Ge....iTXtCo
0060	6d 6d 65 6e 74 00 00 00 00 00 43 72 65 61 74 65 64 20 77 69 74 68 20 47 49 4d 50 64 2e 65 07 00	mment.....Created.with.GIMPd.e..
0080	00 00 27 49 44 41 54 48 c7 63 f4 ae 58 cf 40 4b c0 c4 40 63 30 6a c1 a8 05 a3 16 8c 5a 30 6a c1	..'IDATH.c..X.@K..@c0j......Z0j.
00a0	a8 05 a3 16 8c 5a 40 1d 00 00 05 92 01 a2 e4 6c 54 0e 00 00 00 00 49 45 4e 44 ae 42 60 82	.....Z@........lT.....IEND.B`.