120 lines
3 KiB
Lua
120 lines
3 KiB
Lua
|
--- Common functions [INTERNAL]. All of these functions are internal!
|
||
|
|
-- @module worldedit.common
|
||
|
|
|
||
|
|
--- Copies and modifies positions `pos1` and `pos2` so that each component of
|
||
|
|
-- `pos1` is less than or equal to the corresponding component of `pos2`.
|
||
|
|
-- Returns the new positions.
|
||
|
|
function worldedit.sort_pos(pos1, pos2)
|
||
|
|
pos1 = {x=pos1.x, y=pos1.y, z=pos1.z}
|
||
|
|
pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}
|
||
|
|
if pos1.x > pos2.x then
|
||
|
|
pos2.x, pos1.x = pos1.x, pos2.x
|
||
|
|
end
|
||
|
|
if pos1.y > pos2.y then
|
||
|
|
pos2.y, pos1.y = pos1.y, pos2.y
|
||
|
|
end
|
||
|
|
if pos1.z > pos2.z then
|
||
|
|
pos2.z, pos1.z = pos1.z, pos2.z
|
||
|
|
end
|
||
|
|
return pos1, pos2
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
--- Determines the volume of the region defined by positions `pos1` and `pos2`.
|
||
|
|
-- @return The volume.
|
||
|
|
function worldedit.volume(pos1, pos2)
|
||
|
|
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
|
||
|
|
return (pos2.x - pos1.x + 1) *
|
||
|
|
(pos2.y - pos1.y + 1) *
|
||
|
|
(pos2.z - pos1.z + 1)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
--- Gets other axes given an axis.
|
||
|
|
-- @raise Axis must be x, y, or z!
|
||
|
|
function worldedit.get_axis_others(axis)
|
||
|
|
if axis == "x" then
|
||
|
|
return "y", "z"
|
||
|
|
elseif axis == "y" then
|
||
|
|
return "x", "z"
|
||
|
|
elseif axis == "z" then
|
||
|
|
return "x", "y"
|
||
|
|
else
|
||
|
|
error("Axis must be x, y, or z!")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function worldedit.keep_loaded(pos1, pos2)
|
||
|
|
-- Create a vmanip and read the area from map, this
|
||
|
|
-- causes all MapBlocks to be loaded into memory.
|
||
|
|
-- This doesn't actually *keep* them loaded, unlike the name implies.
|
||
|
|
local manip = minetest.get_voxel_manip()
|
||
|
|
manip:read_from_map(pos1, pos2)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
local mh = {}
|
||
|
|
worldedit.manip_helpers = mh
|
||
|
|
|
||
|
|
|
||
|
|
--- Generates an empty VoxelManip data table for an area.
|
||
|
|
-- @return The empty data table.
|
||
|
|
function mh.get_empty_data(area)
|
||
|
|
-- Fill emerged area with ignore so that blocks in the area that are
|
||
|
|
-- only partially modified aren't overwriten.
|
||
|
|
local data = {}
|
||
|
|
local c_ignore = minetest.get_content_id("ignore")
|
||
|
|
for i = 1, worldedit.volume(area.MinEdge, area.MaxEdge) do
|
||
|
|
data[i] = c_ignore
|
||
|
|
end
|
||
|
|
return data
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function mh.init(pos1, pos2)
|
||
|
|
local manip = minetest.get_voxel_manip()
|
||
|
|
local emerged_pos1, emerged_pos2 = manip:read_from_map(pos1, pos2)
|
||
|
|
local area = VoxelArea:new({MinEdge=emerged_pos1, MaxEdge=emerged_pos2})
|
||
|
|
return manip, area
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function mh.init_radius(pos, radius)
|
||
|
|
local pos1 = vector.subtract(pos, radius)
|
||
|
|
local pos2 = vector.add(pos, radius)
|
||
|
|
return mh.init(pos1, pos2)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function mh.init_axis_radius(base_pos, axis, radius)
|
||
|
|
return mh.init_axis_radius_length(base_pos, axis, radius, radius)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function mh.init_axis_radius_length(base_pos, axis, radius, length)
|
||
|
|
local other1, other2 = worldedit.get_axis_others(axis)
|
||
|
|
local pos1 = {
|
||
|
|
[axis] = base_pos[axis],
|
||
|
|
[other1] = base_pos[other1] - radius,
|
||
|
|
[other2] = base_pos[other2] - radius
|
||
|
|
}
|
||
|
|
local pos2 = {
|
||
|
|
[axis] = base_pos[axis] + length,
|
||
|
|
[other1] = base_pos[other1] + radius,
|
||
|
|
[other2] = base_pos[other2] + radius
|
||
|
|
}
|
||
|
|
return mh.init(pos1, pos2)
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
function mh.finish(manip, data)
|
||
|
|
-- Update map
|
||
|
|
if data ~= nil then
|
||
|
|
manip:set_data(data)
|
||
|
|
end
|
||
|
|
manip:write_to_map()
|
||
|
|
manip:update_map()
|
||
|
|
end
|
||
|
|
|