Minetest-WorldEditAdditions/worldeditadditions/lib/selection/selection.lua
2022-01-02 13:19:31 +00:00

78 lines
3.2 KiB
Lua

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---Selection helpers and modifiers
local selection = {}
--- Additively adds a point to the current selection or
-- makes a selection from the provided point.
-- @param name string Player name.
-- @param pos vector The position to include.
function selection.add_point(name, pos)
if pos ~= nil then
local created_new = not worldedit.pos1[name] or not worldedit.pos2[name]
-- print("[set_pos1]", name, "("..pos.x..", "..pos.y..", "..pos.z..")")
if not worldedit.pos1[name] then worldedit.pos1[name] = vector.new(pos) end
if not worldedit.pos2[name] then worldedit.pos2[name] = vector.new(pos) end
worldedit.marker_update(name)
local volume_before = worldedit.volume(worldedit.pos1[name], worldedit.pos2[name])
worldedit.pos1[name], worldedit.pos2[name] = worldeditadditions.vector.expand_region(worldedit.pos1[name], worldedit.pos2[name], pos)
local volume_after = worldedit.volume(worldedit.pos1[name], worldedit.pos2[name])
local volume_difference = volume_after - volume_before
if volume_difference == 0 and created_new then
volume_difference = 1
end
local msg = "Expanded region by "
if created_new then msg = "Created new region with " end
msg = msg..volume_difference.." node"
if volume_difference ~= 1 then msg = msg.."s" end
worldedit.marker_update(name)
worldedit.player_notify(name, msg)
else
worldedit.player_notify(name, "Error: Too far away (try raising your maxdist with //farwand maxdist <number>)")
-- print("[set_pos1]", name, "nil")
end
end
--- Clears current selection.
-- @param name string Player name.
function selection.clear_points(name)
worldedit.pos1[name] = nil
worldedit.pos2[name] = nil
worldedit.marker_update(name)
worldedit.set_pos[name] = nil
worldedit.player_notify(name, "Region cleared")
end
--- Checks if a string is a valid axis.
-- @param str string String to check (be sure to remove any + or -).
-- @param hv bool Include "h" (general horizontal) and "v" (general vertical).
-- @return bool If string is a valid axis then true.
function selection.check_axis(str,hv)
if hv then
return (str == "x" or str == "y" or str == "z" or str == "h" or str == "v")
else
return (str == "x" or str == "y" or str == "z")
end
end
--- Checks if a string is a valid dir.
-- @param str string String to check (be sure to remove any + or -).
-- @return bool If string is a valid dir then true.
function selection.check_dir(str)
return (str == "front" or str == "back" or str == "left" or str == "right" or str == "up" or str == "down")
end
return selection