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Minetest-WorldEdit/worldedit_brush/init.lua

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local S = minetest.get_translator("worldedit_brush")
local BRUSH_MAX_DIST = 150
local brush_on_use = function(itemstack, placer)
local meta = itemstack:get_meta()
local name = placer:get_player_name()
local cmd = meta:get_string("command")
if cmd == "" then
worldedit.player_notify(name,
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S("This brush is not bound, use @1 to bind a command to it.",
minetest.colorize("#00ffff", "//brush")), "info")
return false
end
local cmddef = worldedit.registered_commands[cmd]
if cmddef == nil then return false end -- shouldn't happen as //brush checks this
local has_privs, missing_privs = minetest.check_player_privs(name, cmddef.privs)
if not has_privs then
worldedit.player_notify(name,
S("Missing privileges: @1", table.concat(missing_privs, ", ")), "error")
return false
end
local raybegin = vector.add(placer:get_pos(),
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vector.new(0, placer:get_properties().eye_height, 0))
local rayend = vector.add(raybegin, vector.multiply(placer:get_look_dir(), BRUSH_MAX_DIST))
local ray = minetest.raycast(raybegin, rayend, false, true)
local pointed_thing = ray:next()
if pointed_thing == nil then
worldedit.player_notify(name, S("Too far away."), "error")
return false
end
assert(pointed_thing.type == "node")
worldedit.pos1[name] = pointed_thing.under
worldedit.pos2[name] = nil
worldedit.marker_update(name)
assert(cmddef.require_pos < 2)
local parsed = {cmddef.parse(meta:get_string("params"))}
if not table.remove(parsed, 1) then return false end -- shouldn't happen
-- discard success messages
local player_notify_old = worldedit.player_notify
worldedit.player_notify = function(name, msg, typ)
if typ == "ok" then return end
return player_notify_old(name, msg, typ)
end
minetest.log("action", string.format("%s uses WorldEdit brush (//%s) at %s",
name, cmd, minetest.pos_to_string(pointed_thing.under)))
cmddef.func(name, unpack(parsed))
worldedit.player_notify = player_notify_old
return true
end
minetest.register_tool(":worldedit:brush", {
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description = S("WorldEdit Brush"),
inventory_image = "worldedit_brush.png",
stack_max = 1, -- no need to stack these (metadata prevents this anyway)
range = 0,
on_use = function(itemstack, placer, pointed_thing)
brush_on_use(itemstack, placer)
return itemstack -- nothing consumed, nothing changed
end,
})
worldedit.register_command("brush", {
privs = {worldedit=true},
params = "none/<cmd> [parameters]",
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description = S("Assign command to WorldEdit brush item or clear assignment using 'none'"),
parse = function(param)
local found, _, cmd, params = param:find("^([^%s]+)%s+(.+)$")
if not found then
params = ""
found, _, cmd = param:find("^(.+)$")
end
if not found then
return false
end
return true, cmd, params
end,
func = function(name, cmd, params)
local itemstack = minetest.get_player_by_name(name):get_wielded_item()
if itemstack == nil or itemstack:get_name() ~= "worldedit:brush" then
return false, S("Not holding brush item.")
end
cmd = cmd:lower()
local meta = itemstack:get_meta()
if cmd == "none" then
meta:from_table(nil)
worldedit.player_notify(name, S("Brush assignment cleared."), "ok")
else
local cmddef = worldedit.registered_commands[cmd]
if cmddef == nil or cmddef.require_pos ~= 1 then
return false, S("@1 cannot be used with brushes",
minetest.colorize("#00ffff", "//"..cmd))
end
-- Try parsing command params so we can give the user feedback
local ok, err = cmddef.parse(params)
if not ok then
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err = err or S("invalid usage")
return false, S("Error with command: @1", err)
end
meta:set_string("command", cmd)
meta:set_string("params", params)
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local fullcmd = minetest.colorize("#00ffff", "//"..cmd) .. " " .. params
meta:set_string("description",
minetest.registered_tools["worldedit:brush"].description .. ": " .. fullcmd)
worldedit.player_notify(name, S("Brush assigned to command: @1", fullcmd), "ok")
end
minetest.get_player_by_name(name):set_wielded_item(itemstack)
end,
})