Get next table slot

[BulleTTime]

Hi, i was wondering how i could get the next absolute slot of a table.

i would need a function that is called like this:

nextslot = getNextSlot(slot)

For example i would have a table like below:

  
table1 = {} 
  
table[3] = "filled" 
table[7] = "filled" 
table[9] = "filled" 
  

Now lets say that i got number "9", then the function should return "3" and when i got the number "3" it should return "7"

well thanks for any help

[Guest]

function getNextSlot(startslot, table) for slot, content in ipairs(table) do if (slot <= startslot) then slot = startslot + 1 elseif (content ~= '') then return slot end end return false end 

function getPreviousSlot(startslot, table) for slot, content in ipairs(table) do if (not initialize) then slot = startslot initialize = true elseif (content ~= '') then return lot end slot = slot -2 end return false end 

maybe like this

you can just add some code to get what you really wanted.

function getNextSlotByLoopThrough(index, table) 
local result = getNextSlot(index, table) 
if (not result) then  
for slot, content in ipairs(table) do if (content ~= '') then result = slot break end if (slot == index) then break end end 
end 
return result 
end 

the first two functions will return the next or previous index. if all following or previous indizes are empty, it just returns falls.

the third function will only return false in case that the whole table is empty. it starts from the index you entered and if all following indizes of the table are empty, it'll just start searching from the first index on. if the index you started from is the only index with content, the function will return this index

Edited May 21, 2009 by Guest

[darkdreamingdan]

Lua has a built in next() function, lol

[BulleTTime]

would u like to show a working example using next() talidan ? (on the same table structure as above)

thanks

[lil Toady]

http://www.lua.org/manual/5.1/manual.html#pdf-next