126 lines
3.9 KiB
Lua
126 lines
3.9 KiB
Lua
if minetest.raycast == nil then
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error(
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"worldedit_brush requires at least Minetest 5.0"
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)
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end
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local BRUSH_MAX_DIST = 150
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local brush_on_use = function(itemstack, placer)
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local meta = itemstack:get_meta()
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local name = placer:get_player_name()
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local cmd = meta:get_string("command")
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if cmd == "" then
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worldedit.player_notify(name,
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"This brush is not bound, use //brush to bind a command to it.")
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return false
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end
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local cmddef = worldedit.registered_commands[cmd]
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if cmddef == nil then return false end -- shouldn't happen as //brush checks this
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local has_privs, missing_privs = minetest.check_player_privs(name, cmddef.privs)
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if not has_privs then
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worldedit.player_notify(name,
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"Missing privileges: " .. table.concat(missing_privs, ", "))
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return false
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end
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local raybegin = vector.add(placer:get_pos(),
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vector.new(0, placer:get_properties().eye_height, 0))
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local rayend = vector.add(raybegin, vector.multiply(placer:get_look_dir(), BRUSH_MAX_DIST))
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local ray = minetest.raycast(raybegin, rayend, false, true)
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local pointed_thing = ray:next()
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if pointed_thing == nil then
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worldedit.player_notify(name, "Too far away.")
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return false
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end
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assert(pointed_thing.type == "node")
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worldedit.pos1[name] = pointed_thing.under
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worldedit.pos2[name] = nil
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worldedit.marker_update(name)
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-- this isn't really clean...
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local player_notify_old = worldedit.player_notify
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worldedit.player_notify = function(name, msg)
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if string.match(msg, "^%d") then return end -- discard "1234 nodes added."
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return player_notify_old(name, msg)
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end
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assert(cmddef.require_pos < 2)
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local parsed = {cmddef.parse(meta:get_string("params"))}
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if not table.remove(parsed, 1) then return false end -- shouldn't happen
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minetest.log("action", string.format("%s uses WorldEdit brush (//%s) at %s",
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name, cmd, minetest.pos_to_string(pointed_thing.under)))
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cmddef.func(name, unpack(parsed))
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worldedit.player_notify = player_notify_old
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return true
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end
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minetest.register_tool(":worldedit:brush", {
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description = "WorldEdit Brush",
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inventory_image = "worldedit_brush.png",
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stack_max = 1, -- no need to stack these (metadata prevents this anyway)
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range = 0,
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on_use = function(itemstack, placer, pointed_thing)
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brush_on_use(itemstack, placer)
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return itemstack -- nothing consumed, nothing changed
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end,
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})
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worldedit.register_command("brush", {
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privs = {worldedit=true},
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params = "none/<cmd> [parameters]",
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description = "Assign command to WorldEdit brush item",
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parse = function(param)
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local found, _, cmd, params = param:find("^([^%s]+)%s+(.+)$")
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if not found then
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params = ""
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found, _, cmd = param:find("^(.+)$")
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end
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if not found then
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return false
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end
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return true, cmd, params
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end,
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func = function(name, cmd, params)
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local itemstack = minetest.get_player_by_name(name):get_wielded_item()
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if itemstack == nil or itemstack:get_name() ~= "worldedit:brush" then
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worldedit.player_notify(name, "Not holding brush item.")
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return
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end
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cmd = cmd:lower()
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local meta = itemstack:get_meta()
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if cmd == "none" then
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meta:from_table(nil)
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worldedit.player_notify(name, "Brush assignment cleared.")
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else
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local cmddef = worldedit.registered_commands[cmd]
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if cmddef == nil or cmddef.require_pos ~= 1 then
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worldedit.player_notify(name, "//" .. cmd .. " cannot be used with brushes")
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return
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end
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-- Try parsing command params so we can give the user feedback
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local ok, err = cmddef.parse(params)
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if not ok then
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err = err or "invalid usage"
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worldedit.player_notify(name, "Error with brush command: " .. err)
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return
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end
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meta:set_string("command", cmd)
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meta:set_string("params", params)
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local fullcmd = "//" .. cmd .. " " .. params
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meta:set_string("description",
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minetest.registered_tools["worldedit:brush"].description .. ": " .. fullcmd)
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worldedit.player_notify(name, "Brush assigned to command: " .. fullcmd)
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end
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minetest.get_player_by_name(name):set_wielded_item(itemstack)
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end,
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})
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