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if minetest.raycast == nil then
error(
"================================\n"..
"This mod requires a suitable version of 0.4.16-dev/0.5.0-dev\n"..
"that includes support for minetest.raycast() [since 7th July 2017]\n"..
"================================\n"
)
end
local BRUSH_MAX_DIST = 150
local BRUSH_ALLOWED_COMMANDS = {
-- basically everything that only needs pos1
"cube",
"cylinder",
"dome",
"hollowcube",
"hollowcylinder",
"hollowdome",
"hollowpyramid",
"hollowsphere",
"load",
"pyramid",
"sphere",
"spiral",
"cyl",
"do",
"hcube",
"hcyl",
"hdo",
"hpyr",
"hspr",
"l",
"pyr",
"spr",
"spl",
}
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,
"This brush is not bound, use //brush to bind a command to it.")
return false
end
local cmddef = minetest.registered_chatcommands["/" .. 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,
"Missing privileges: " .. table.concat(missing_privs, ", "))
return false
end
local raybegin = vector.add(placer:get_pos(), {x=0, y=2, z=0}) -- player head
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, "Too far away.")
return false
end
assert(pointed_thing.type == "node")
worldedit.pos1[name] = pointed_thing.under
worldedit.pos2[name] = nil
worldedit.mark_region(name)
-- is this a horrible hack? oh yes.
worldedit._override_safe_regions = true
local player_notify_old = worldedit.player_notify
worldedit.player_notify = function(name, msg)
if string.match(msg, "^%d") then return end -- discard "1234 nodes added."
return player_notify_old(name, msg)
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, meta:get_string("params"))
worldedit._override_safe_regions = false
worldedit.player_notify = player_notify_old
return true
end
minetest.register_tool(":worldedit:brush", {
description = "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,
})
minetest.register_chatcommand("/brush", {
privs = {worldedit=true},
params = "none/<cmd> [parameters]",
description = "Assign command to WorldEdit brush item",
func = function(name, param)
local found, _, cmd, params = param:find("^([^%s]+)%s+(.+)$")
if not found then
params = ""
found, _, cmd = param:find("^(.+)$")
end
if not found then
worldedit.player_notify(name, "Invalid usage.")
return
end
local itemstack = minetest.get_player_by_name(name):get_wielded_item()
if itemstack == nil or itemstack:get_name() ~= "worldedit:brush" then
worldedit.player_notify(name, "Not holding brush item.")
return
end
cmd = cmd:lower()
local meta = itemstack:get_meta()
if cmd == "none" then
meta:from_table(nil)
worldedit.player_notify(name, "Brush assignment cleared.")
else
local cmddef
if table.indexof(BRUSH_ALLOWED_COMMANDS, cmd) ~= -1 then
cmddef = minetest.registered_chatcommands["/" .. cmd]
else
cmddef = nil
end
if cmddef == nil then
worldedit.player_notify(name, "Invalid command for brush use: //" .. cmd)
return
end
meta:set_string("command", cmd)
meta:set_string("params", params)
local fullcmd = "//" .. cmd .. " " .. params
meta:set_string("description",
minetest.registered_tools["worldedit:brush"].description .. ": " .. fullcmd)
worldedit.player_notify(name, "Brush assigned to command: " .. fullcmd)
end
minetest.get_player_by_name(name):set_wielded_item(itemstack)
end,
})
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