75 lines
1.4 KiB
Lua
75 lines
1.4 KiB
Lua
|
|
-----------------------
|
|
-- Utility Functions --
|
|
-----------------------
|
|
|
|
ele.helpers = {}
|
|
|
|
function ele.helpers.table_copy(tab)
|
|
local retval = {}
|
|
for k, v in pairs(tab) do
|
|
if type(v) == "table" then
|
|
retval[k] = ele.helpers.table_copy(v)
|
|
else
|
|
retval[k] = v
|
|
end
|
|
end
|
|
return retval
|
|
end
|
|
|
|
function ele.helpers.round(v)
|
|
return math.floor(v + 0.5)
|
|
end
|
|
|
|
function ele.helpers.swap_node(pos, noded)
|
|
local node = minetest.get_node(pos)
|
|
|
|
if type(noded) ~= "table" then
|
|
local n = ele.helpers.table_copy(node)
|
|
n.name = noded
|
|
noded = n
|
|
end
|
|
|
|
if node.name == noded.name then
|
|
return false
|
|
end
|
|
|
|
minetest.swap_node(pos, noded)
|
|
|
|
return true
|
|
end
|
|
|
|
function ele.helpers.get_or_load_node(pos)
|
|
local node = minetest.get_node_or_nil(pos)
|
|
if node then return node end
|
|
local vm = VoxelManip()
|
|
local MinEdge, MaxEdge = vm:read_from_map(pos, pos)
|
|
return nil
|
|
end
|
|
|
|
function ele.helpers.get_item_group(name, grp)
|
|
return minetest.get_item_group(name, grp) > 0
|
|
end
|
|
|
|
function ele.helpers.flatten(map)
|
|
local list = {}
|
|
for key, value in pairs(map) do
|
|
list[#list + 1] = value
|
|
end
|
|
return list
|
|
end
|
|
|
|
function ele.helpers.get_node_property(meta, pos, prop)
|
|
local value = meta:get_int(prop)
|
|
|
|
if value == 0 or value == nil then
|
|
local nname = minetest.get_node(pos).name
|
|
local ndef = minetest.registered_nodes[nname]
|
|
value = ndef["ele_"..prop]
|
|
end
|
|
|
|
if not value then return 0 end
|
|
|
|
return value
|
|
end
|