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Rewrite schematic format
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cb5e291285
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@ -6,34 +6,49 @@ function schematic.setmetatable(self)
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end
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function schematic.create(self, pos_min, pos_max)
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-- Don't use the metatable for the defaults to force a serialization
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self.baked_light = self.backed_light or false
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self.meta_data = self.meta_data or true
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self.size = vector.subtract(pos_max, pos_min)
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local voxelmanip = minetest.get_voxel_manip(pos_min, pos_max)
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local emin, emax = voxelmanip:read_from_map(pos_min, pos_max)
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local voxelarea = VoxelArea:new{ MinEdge = emin, MaxEdge = emax }
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local meta_data = {}
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for _, pos in ipairs(minetest.find_nodes_with_meta(pos_min, pos_max)) do
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local meta = minetest.get_meta(pos):to_table()
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if next(meta.fields) ~= nil or next(meta.inventory) ~= nil then
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meta_data[voxelarea:indexp(pos)] = meta
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end
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end
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local data, light_data, param2_data = voxelmanip:get_data(), self.baked_light and voxelmanip:get_light_data() or {}, voxelmanip:get_param2_data()
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local nodes = {}
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local nodes, light_values, param2s = {}, self.light_values and {}, {}
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local vm_nodes, vm_light_values, vm_param2s = voxelmanip:get_data(), light_values and voxelmanip:get_light_data(), voxelmanip:get_param2_data()
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local node_names, node_ids = {}, {}
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local i = 0
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for index in voxelarea:iterp(pos_min, pos_max) do
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if data[index] == minetest.CONTENT_UNKNOWN or data[index] == minetest.CONTENT_IGNORE then
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if nodes[index] == minetest.CONTENT_UNKNOWN or nodes[index] == minetest.CONTENT_IGNORE then
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error("unknown or ignore node at " .. minetest.pos_to_string(voxelarea:position(index)))
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end
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table.insert(nodes, {
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name = minetest.get_name_from_content_id(data[index]),
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light = light_data[index],
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param2 = param2_data[index],
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meta = meta_data[index]
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})
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local name = minetest.get_name_from_content_id(vm_nodes[index])
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local id = node_ids[name]
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if not id then
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table.insert(node_names, name)
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id = #node_names
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node_ids[name] = id
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end
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i = i + 1
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nodes[i] = id
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if self.light_values then
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light_values[i] = vm_light_values[index]
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end
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param2s[i] = vm_param2s[index]
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end
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local metas = self.metas
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if metas or metas == nil then
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local indexing = vector.add(self.size, 1)
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metas = {}
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for _, pos in ipairs(minetest.find_nodes_with_meta(pos_min, pos_max)) do
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local meta = minetest.get_meta(pos):to_table()
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if next(meta.fields) ~= nil or next(meta.inventory) ~= nil then
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local relative = vector.subtract(pos, pos_min)
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metas[((relative.z * indexing.y) + relative.y) * indexing.x + relative.x] = meta
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end
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end
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end
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self.node_names = node_names
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self.nodes = nodes
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self.light_values = light_values
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self.param2s = param2s
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self.metas = metas
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return schematic.setmetatable(self)
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end
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@ -41,40 +56,49 @@ function schematic:write_to_voxelmanip(voxelmanip, pos_min)
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local pos_max = vector.add(pos_min, self.size)
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local emin, emax = voxelmanip:read_from_map(pos_min, pos_max)
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local voxelarea = VoxelArea:new{ MinEdge = emin, MaxEdge = emax }
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local data, light_data, param2_data = voxelmanip:get_data(), self.baked_light and voxelmanip:get_light_data(), voxelmanip:get_param2_data()
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local nodes, light_values, param2s, metas = self.nodes, self.light_values, self.param2s, self.metas
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local vm_nodes, vm_lights, vm_param2s = voxelmanip:get_data(), light_values and voxelmanip:get_light_data(), voxelmanip:get_param2_data()
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for _, pos in ipairs(minetest.find_nodes_with_meta(pos_min, pos_max)) do
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-- Clear all metadata. Due to an engine bug, nodes will actually have empty metadata.
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minetest.get_meta(pos):from_table{}
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end
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local i = 1
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local content_ids = {}
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for index, name in ipairs(self.node_names) do
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content_ids[index] = assert(minetest.get_content_id(name), ("unknown node %q"):format(name))
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end
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local i = 0
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for index in voxelarea:iterp(pos_min, pos_max) do
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local node = self.nodes[i]
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i = i + 1
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data[index] = minetest.get_content_id(node.name)
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if data[index] == nil then
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error(("unknown node %q"):format(node.name))
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vm_nodes[index] = content_ids[nodes[i]]
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if light_values then
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vm_lights[index] = light_values[i]
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end
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if self.baked_light then
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light_data[index] = node.light
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end
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param2_data[index] = node.param2
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if node.meta then
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-- TODO consider removing this check by using a separate table [index] = meta for node meta
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minetest.get_meta(voxelarea:position(index)):from_table(node.meta)
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vm_param2s[index] = param2s[i]
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end
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voxelmanip:set_data(vm_nodes)
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if light_values then
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voxelmanip:set_light_data(vm_lights)
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end
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voxelmanip:set_param2_data(vm_param2s)
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if metas then
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local indexing = vector.add(self.size, 1)
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for index, meta in pairs(metas) do
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local floored = math.floor(index / indexing.x)
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local relative = {
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x = index % indexing.x,
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y = floored % indexing.y,
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z = math.floor(floored / indexing.y)
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}
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minetest.get_meta(vector.add(relative, pos_min)):from_table(meta)
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end
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end
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voxelmanip:set_data(data)
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if self.baked_light then
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voxelmanip:set_light_data(light_data)
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end
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voxelmanip:set_param2_data(param2_data)
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end
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function schematic:place(pos_min)
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local pos_max = vector.add(pos_min, self.size)
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local voxelmanip = minetest.get_voxel_manip(pos_min, pos_max)
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self:write_to_voxelmanip(voxelmanip, pos_min)
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voxelmanip:write_to_map(not self.baked_light)
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voxelmanip:write_to_map(not self.light_data)
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return voxelmanip
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end
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