NOOB forum?

[the underminer]

I consider myself to be a noob and I have a lot of rather basic questions.
Is there a special place on the forum were we ,noobs, can go? I don't want to annoy you guys, see :-)

While we're at it, I was sorting out the table.sort finction. And I don't get it.

Can anyone help me out?

Code: Select all

-- sorting test

function sorteren(a,b)
if a<b then
return false
else
return true
end
end

table = &#123;&#125;
table&#91;1&#93; = 3
table&#91;2&#93; = 1
table&#91;3&#93; = 2

table.sort&#40;table,sorteren&#40;table&#91;i&#93;,table&#91;i+1&#93;&#41;&#41;

[romero126]

Can anyone help me out?

Code: Select all

-- sorting test

function sorteren(a,b)
if a<b then
return false
else
return true
end
end

table = &#123;&#125;
table&#91;1&#93; = 3
table&#91;2&#93; = 1
table&#91;3&#93; = 2

table.sort&#40;table,sorteren&#40;table&#91;i&#93;,table&#91;i+1&#93;&#41;&#41;

This is my favorite time to let you know your doing everything all wrong.
Isnt that fun :-)

First problem. You are defining table as a table. When table is a function command list. (So if you use table.sort it will error out) instead try something like "data" or test..

instead of trying to call your own custom function to use a sort method.
All you require is something simpler. Here lets try this.

Code: Select all

data = {2,1,3}
table.sort(data, function(table1,table2) return table1>table2 end)

Another thing you might want to look into is sub arrays.

Code: Select all

data = {
     ["blah1"] = { "random", 32, "miscdata" }
     ["blah2"] = { "random", 12, "miscdata" }
     ["blah3"] = { "random", 64, "miscdata" }
}
table.sort(data, function(table1,table2) return table1[2]>table2[2] end)

Thats right its that simple.

Heres what I did there.
I used an indexed table (table.sort works on any type of table)
Sub tables are refered to by keys in that case id i was refering to sort it was on the second index (so if there is no id(#=) then you can refer to it by its location based on last placed.

If you have any other questions feel free to post. :-)

[the underminer]

Wow, that's quite an elaborate answer romero!
All a noob could ever wish for. (A ferrari in my garage would be nice too, but that's another thing.) Thnx

[the underminer]

T-riffic! even sorts out text alphabetically! superb. thnx again

[illfoundedmind]

Thought this was a n00b question so I'll ask it here

I was wondering if there is a way to "unload" an image (maybe set the
varible to a number instead of that image) or is there no need to (Lua does cache the image files and it does take up processing power unless BLITed)?

[modsyn]

from http://www.lua.org/manual/5.0/manual.html#predefined

collectgarbage ([limit])
Sets the garbage-collection threshold to the given limit (in Kbytes) and checks it against the byte counter. If the new threshold is smaller than the byte counter, then Lua immediately runs the garbage collector (see 2.9). If limit is absent, it defaults to zero (thus forcing a garbage-collection cycle).

[romero126]

Thought this was a n00b question so I'll ask it here

I was wondering if there is a way to "unload" an image (maybe set the
varible to a number instead of that image) or is there no need to (Lua does cache the image files and it does take up processing power unless BLITed)?

Variable = nil

Which removes the variable from existance.

[illfoundedmind]

Just wanted to make sure,

Thanks