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local globalstepLag = 0
local ABMLag = 0
local ABMLastRun = 0
minetest.register_chatcommand("globalsteplag",
{
params = "[time per globalstep, in ms]",
description = "Add the specified amount of lag on each globalstep",
privs = {server = true},
func = function(name,param)
if param ~= "" then
if not tonumber(param) then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) > 5000 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) < 0 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Only positive values are allowed."
end
else
return true,"Current globalstep lag setting: "..minetest.colorize("#00FFFF",tostring(globalstepLag))
end
if tonumber(param) then
globalstepLag = tonumber(param)
return true,"Globalstep lag set to: "..minetest.colorize("#00FFFF",tostring(globalstepLag))
end
end
}
)
minetest.register_chatcommand("abmlag",
{
params = "[time per second, in ms]",
description = "Add the specified amount of lag to an ABM running (nominally) once per second",
privs = {server = true},
func = function(name,param)
if param ~= "" then
if not tonumber(param) then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) > 5000 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) < 0 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Only positive values are allowed."
end
else
return true,"Current ABM lag setting: "..minetest.colorize("#00FFFF",tostring(ABMLag))
end
if tonumber(param) then
ABMLag = tonumber(param)
return true,"ABM lag set to: "..minetest.colorize("#00FFFF",tostring(ABMLag))
end
end
}
)
minetest.register_chatcommand("lag",
{
params = "[time, in ms]",
description = "Freeze the server for the specified length of time",
privs = {server = true},
func = function(name,param)
if param ~= "" then
if not tonumber(param) then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) > 5000 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Valid range is 0-5000."
elseif tonumber(param) < 0 then
return false,minetest.colorize("#FF0000","ERROR")..": Invalid value. Only positive values are allowed."
end
else
return false,minetest.colorize("#FF0000","ERROR")..": No value specified."
end
if tonumber(param) then
local endTime = os.clock() + (tonumber(param)/1000)
while os.clock() < endTime do
--Nothing, just busy-waiting here
end
return true,"Done!"
end
end
}
)
minetest.register_globalstep(function()
if globalstepLag == 0 then return end
local endTime = os.clock() + (globalstepLag/1000)
while os.clock() < endTime do
--Nothing, just busy-waiting here
end
end)
minetest.register_abm({
label = "Generate Lag",
nodenames = {"air"},
interval = 1,
chance = 1,
action = function()
if ABMLag == 0 or ABMLastRun < (os.time() + 1) then return end
ABMLastRun = os.time()
local endTime = os.clock() + (ABMLag/1000)
while os.clock() < endTime do
--Nothing, just busy-waiting here
end
end,
})
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