Difference between revisions of "LlList2Float"

From Second Life Wiki
Jump to navigation Jump to search
m (added link to how to deal with lists in LSL)
m (oops)
Line 3: Line 3:
|func_id=187|func_sleep=0.0|func_energy=10.0
|func_id=187|func_sleep=0.0|func_energy=10.0
|func=llList2Float|return_type=float|p1_type=list|p1_name=src|p2_type=integer|p2_name=index
|func=llList2Float|return_type=float|p1_type=list|p1_name=src|p2_type=integer|p2_name=index
|func_footnote
|func_footnote=
{{LSL Tip|Please read [[User:Kireji_Haiku/How_to_deal_with_lists_in_LSL|this intro of how to iterate over a list in LSL]].}}
|func_desc
|func_desc
|sort=List2Float
|sort=List2Float
Line 36: Line 37:
|also_events
|also_events
|also_tests
|also_tests
|also_articles=
|also_articles
{{LSL Tip|Please read [[User:Kireji_Haiku/How_to_deal_with_lists_in_LSL|this intro of how to deal with lists in LSL]].}}
|notes
|notes
|issues
|issues

Revision as of 13:16, 5 November 2012

Summary

Function: float llList2Float( list src, integer index );
0.0 Forced Delay
10.0 Energy

Returns a float that is at index in src.

• list src List containing the element of interest.
• integer index Index of the element of interest.

index supports negative indexes.
If index describes a location not in src then zero is returned.
If the type of the element at index in src is not a float it is typecast to a float. If it cannot be typecast zero is returned.

KBcaution.png Important: Please read this intro of how to iterate over a list in LSL.

Specification

Index Positive Negative
First 0 -length
Last length - 1 -1

Indexes

  • Positive indexes count from the beginning, the first item being indexed as 0, the last as (length - 1).
  • Negative indexes count from the far end, the first item being indexed as -length, the last as -1.

Caveats

  • If index is out of bounds the script continues to execute without an error message.
  • A string of hexadecimal notation (e.g. "0x12A") or scientific notation (e.g. "6.2e+1") will be parsed as float and contain the correct value[1].

Examples

<lsl>// Best viewed in Chat History (ctrl-h) default {

   state_entry()
   {
       list my_list = ["a", 1, 2.0, <1,2,3>, <1,2,3,4>, llGetOwner()];
       integer i = ~llGetListLength(my_list);
       while (++i)
       {
           llOwnerSay("string=" + llList2String(my_list,i)
                       + "\n   integer=" + (string)llList2Integer(my_list,i)
                       + "\n   float=" + (string)llList2Float(my_list,i)
                       + "\n   vector=" + (string)llList2Vector(my_list,i)
                       + "\n   rot=" + (string)llList2Rot(my_list,i)
                       + "\n   key=" + (string)llList2Key(my_list,i) );
       }
   }
}</lsl>

See Also

Functions

•  llGetListEntryType
•  llList2Integer
•  llList2String

Articles

•  Negative Index

Deep Notes

Footnotes

  1. ^ Correct with in the limitations of the float type.

Signature

function float llList2Float( list src, integer index );