Implement run_command, but it's not quite finished yet

We still have yet to implement safe_region. Doing so will be 
non-trivial, as we'll need to override //y and //n, but then  also keep 
track of commands defined in worldedit and call the right version of //y 
and //n.
This commit is contained in:
Starbeamrainbowlabs 2022-05-17 01:03:58 +01:00
parent 4ab386788d
commit 1fda9725c7
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5 changed files with 73 additions and 3 deletions

@ -1,3 +1,5 @@
# worldeditadditions_core
This mod's purpose is to provide a solid base upon which the rest of WorldEditAdditions can function. Once it is complete, we will be able to mark our dependency on `worldedit` itself optional. To get to that point though will still require a significant effort in implementing enhanced versions of all existing WorldEdit commands. If you've got some free time and a great idea for a command, please do open a pull request! :D
In short, `worldeditadditions_core` is a reimplementation of a number of underlying parts of the worldedit engine. Parts of `worldeditadditions_core` are likely to look very similar to parts of WorldEdit - this is because inspiration was taken from Uberi/WorldEdit when implementing `worldeditadditions_core`.

@ -0,0 +1,17 @@
-- TODO: This is duplicated from worldeditadditions/utils. We should consider moving worldeditadditions/utils to worldeditadditions_core. Perhaps also we could move the definition of the worldeditadditions namespace to worldeditadditions_core too?
--- Formats (usually large) numbers as human-readable strings.
-- Ported from PHP: https://github.com/sbrl/Pepperminty-Wiki/blob/0a81c940c5803856db250b29f54658476bc81e21/core/05-functions.php#L67
-- @param n number The number to format.
-- @param decimals number The number of decimal places to show.
-- @return string A formatted string that represents the given input number.
local function human_size(n, decimals)
local sizes = { "", "K", "M", "G", "T", "P", "E", "Y", "Z" }
local factor = math.floor((#tostring(n) - 1) / 3)
local multiplier = 10^(decimals or 0)
local result = math.floor(0.5 + (n / math.pow(1000, factor)) * multiplier) / multiplier
return result .. sizes[factor+1]
end
return human_size

@ -54,7 +54,7 @@ local function register_command(cmdname, options)
description = options.description,
privs = options.privs,
func = function(player_name, paramtext)
run_command(cmdname, player_name, paramtext)
run_command(cmdname, options, player_name, paramtext)
end
})
we_c.registered_commands[cmdname] = options

@ -1,7 +1,53 @@
local we_c = worldeditadditions_core
local human_size = dofile(we_c.modpath.."/core/lib/human_size.lua")
local function run_command(cmdname, func, paramtext)
-- TODO: Fill this in
-- TODO: Reimplement worldedit.player_notify(player_name, msg_text)
local function run_command_stage2(player_name, func, parse_result)
local success, result_message = func(player_name, unpack(parse_result))
if result_message then
-- TODO: If we were unsuccessfull, then colour the message red
worldedit.player_notify(player_name, result_message)
end
end
local function run_command(cmdname, options, player_name, paramtext)
if options.require_pos > 0 and not worldedit.pos1[player_name] then
worldedit.player_notify(player_name, "Error: pos1 must be selected to use this command.")
return false
end
if options.require_pos > 1 and not worldedit.pos2[player_name] then
worldedit.player_notify(player_name, "Error: Both pos1 and pos2 must be selected (together making a region) to use this command.")
return false
end
local parse_result = { options.parse(paramtext) }
local success = table.remove(parse_result, 1)
if not success then
worldedit.player_notify(player_name, parse_result[1] or "Invalid usage (no further error message was provided by the command. This is probably a bug.)")
return false
end
if options.nodes_needed then
local potential_changes = options.nodes_needed(player_name, unpack(parse_result))
local limit = we_c.safe_region_limit_default
if we_c.safe_region_limits[player_name] then
limit = we_c.safe_region_limits[player_name]
end
if potential_changes > limit then
worldedit.player_notify(player_name, "/"..cmdname.." "..paramtext.."' may affect up to "..human_size(potential_changes).." nodes. Type //y to continue, or //n to cancel (see the //saferegion command to control when this message appears).")
-- TODO: Wrap run_command_stage2 in safe_region stuff
run_command_stage2(player_name, options.func, parse_result)
end
else
run_command_stage2(player_name, options.func, parse_result)
end
end
return run_command

@ -15,6 +15,11 @@ local modpath = minetest.get_modpath("worldeditadditions_core")
worldeditadditions_core = {
modpath = modpath,
registered_commands = {},
-- Storage for per-player node limits before safe_region kicks in.
-- TODO: Persist these to disk.
safe_region_limits = {},
-- The default limit for new players on the number of potential nodes changed before safe_region kicks in.
safe_region_limit_default = 100000,
register_command = dofile(modpath.."/core/register_command.lua")
}