Math Functions and Rounding

[NoahAvrum]

I am new to Lua so sorry if this is very trivial but I cannot seem to get the math functions to work.
I have a number stored as a variable and I want to truncate it and display the truncated result.

Below is my example code:

function OnMsg.NewHour()
local Var_a = 1234.567
local Var_b = math.floor (Var_a)
AddCustomOnscreenNotification ("NewMSG", My Truncated Variable", Var_b)
end

Nothing gets displayed.
What am I doing wrong?

Also, can you declare Constants? I can't seem to find anything about that.

Thanks so much,
Noah

 

[CheTranqui]

AddCustomOnscreenNotification ("NewMSG", My Truncated Variable", Var_b)

Your notification is incomplete and missing a quotes. Here is the format that you'll want to use to create a Notififcation Icon:

function myNotificationFunction()
CreateRealTimeThread(function()
AddCustomOnScreenNotification("notificationInternalID",
T{"notification1stLine"},
T{"notification2ndLine"},
"UI/Icons/Notifications/placeholder_2.tga",
functionToCallOnClickWithoutFinalParenthesis,
{ defineNecessaryVariablesHere,
expiration = 100000,
priority = "Important",
})
end)
end​

priority can be Normal, Important... and I think Critical?
You can also use custom icons if you like, but that requires a little bit more in the way of code. Otherwise, search out the images/Icons/Notifications folder for other options.

...and yes, this CreateRealTimeThread thing happens inside of your own function.

 

[NoahAvrum]

Thank you for replying but your answer only muddied the waters and now I am more confused.

Could you get me a more specific example using the math.floor function?
Also I am not clear which parts are pseudo code and which parts are syntax code from your answer.
Would it be possible to give the answer as a working message rather than pseudo code as it is not clear.

Thanks so much,
Noah

 

[spannbeton]

math functions dont work.

Also sin and cos are defined differently.

use floatfloor(float)

An example from my wind fluctuation code:

local wind_fluctuation_period = rawget(_G, "ModConfig") and ModConfig:Get("Hard Mode", "wf_period") or 32 --in hours (25h = 1 day)
local wind_fluctuation_min_production = rawget(_G, "ModConfig") and ModConfig:Get("Hard Mode", "wf_min_prod") or 40 -- in percentage of Base
local wind_fluctuation_amplitude = rawget(_G, "ModConfig") and ModConfig:Get("Hard Mode", "wf_amplitude") or 60 -- in percentage of Base



self:SetBase("electricity_production", MulDivRound(50 + production_bonus, floatfloor(wind_fluctuation), 100))
self:UpdateWorking()
self:SetAnimSpeedModifier(Min(floatfloor((300 + 3 * production_bonus)*wind_fluctuation), 1100))