Again, question about loops.

[Hermes]

Hi there .

I have extended my skills in LUA scripting with simple for loops.

Now my imagination goes further and now I have request for more advanced loop usage.

1. I have table.

local table = {
{number = 1, name = "One", value = 11},
{number = 2, name = "Two", value = 22},
{number = 3, name = "Three", value = 33}
}

And I want to get variables "name" and "value", but those variables must depend on "number".

Humm, let me give you example of script that might use those items from table.

local table = {I have posted table up.}

function text()
--perhaps here should be loop for table
	broadcastMessage(number .. ", " .. name .. " and " .. value)
	return TRUE
end

Ofcourse I can use something like this:

if(number == 1) then
	name = "One"
	value = 11
elseif(number == 2) then
	name = "Two"
	value = 22
elseif(number == 3) then
	name = "Three"
	value = 33
end

But it's cleaner with table, right?


2. Second question is.. what's the main difference between loop "in pairs()" and "in ipairs()"?


Thanks in advance & regards,
Hermes

 

[EvulMastah]

Programming in Lua : 7.3

According to this table:

local table = {
{number = 1, name = "One", value = 11},
{number = 2, name = "Two", value = 22},
{number = 3, name = "Three", value = 33}
}

You can do it like that:

local rand = math.random(1, 3)
for _, value in pairs(table) do
    if rand == value[1] then
        broadcastMessage(rand..", " ..value[2].. " and "..value['value'])
        break
    end
end

You can also try like this:

local rand = math.random(1, #table)
broadcastMessage(table[rand][1]..", " ..table[rand][2].. " and "..table[rand]['value'])

Im not sure about value['value'], but my guess is that should work tho.

 

[Hermes]

Okay. Thank you very much!