forked from VoxeLibre/VoxeLibre
66 lines
2.1 KiB
Lua
66 lines
2.1 KiB
Lua
|
local safe_region_callback = {}
|
||
|
|
local safe_region_param = {}
|
||
|
|
|
||
|
|
check_region = function(name, param)
|
||
|
|
local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name] --obtain positions
|
||
|
|
if pos1 == nil or pos2 == nil then
|
||
|
|
worldedit.player_notify(name, "no region selected")
|
||
|
|
return nil
|
||
|
|
end
|
||
|
|
return worldedit.volume(pos1, pos2)
|
||
|
|
end
|
||
|
|
|
||
|
|
--`callback` is a callback to run when the user confirms
|
||
|
|
--`nodes_needed` is a function accepting `param`, `pos1`, and `pos2` to calculate the number of nodes needed
|
||
|
|
safe_region = function(callback, nodes_needed)
|
||
|
|
--default node volume calculation
|
||
|
|
nodes_needed = nodes_needed or check_region
|
||
|
|
|
||
|
|
return function(name, param)
|
||
|
|
--check if the operation applies to a safe number of nodes
|
||
|
|
local count = nodes_needed(name, param)
|
||
|
|
if count == nil then return end --invalid command
|
||
|
|
if count < 10000 then
|
||
|
|
return callback(name, param)
|
||
|
|
end
|
||
|
|
|
||
|
|
--save callback to call later
|
||
|
|
safe_region_callback[name], safe_region_param[name] = callback, param
|
||
|
|
worldedit.player_notify(name, "WARNING: this operation could affect up to " .. count .. " nodes; type //y to continue or //n to cancel")
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
minetest.register_chatcommand("/y", {
|
||
|
|
params = "",
|
||
|
|
description = "Confirm a pending operation",
|
||
|
|
func = function(name)
|
||
|
|
local callback, param = safe_region_callback[name], safe_region_param[name]
|
||
|
|
if not callback then
|
||
|
|
worldedit.player_notify(name, "no operation pending")
|
||
|
|
return
|
||
|
|
end
|
||
|
|
|
||
|
|
--obtain positions
|
||
|
|
local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name]
|
||
|
|
if pos1 == nil or pos2 == nil then
|
||
|
|
worldedit.player_notify(name, "no region selected")
|
||
|
|
return
|
||
|
|
end
|
||
|
|
|
||
|
|
safe_region_callback[name], safe_region_param[name] = nil, nil --reset pending operation
|
||
|
|
callback(name, param, pos1, pos2)
|
||
|
|
end,
|
||
|
|
})
|
||
|
|
|
||
|
|
minetest.register_chatcommand("/n", {
|
||
|
|
params = "",
|
||
|
|
description = "Confirm a pending operation",
|
||
|
|
func = function(name)
|
||
|
|
if not safe_region_callback[name] then
|
||
|
|
worldedit.player_notify(name, "no operation pending")
|
||
|
|
return
|
||
|
|
end
|
||
|
|
safe_region_callback[name], safe_region_param[name] = nil, nil
|
||
|
|
end,
|
||
|
|
})
|