Difference between revisions of "LlList2Vector"

From Second Life Wiki
Jump to navigation Jump to search
m (added LSL Tip)
m (<lsl> tag to <source>)
 
(One intermediate revision by one other user not shown)
Line 4: Line 4:
|func_id=190|func_sleep=0.0|func_energy=10.0
|func_id=190|func_sleep=0.0|func_energy=10.0
|func=llList2Vector|return_type=vector|p1_type=list|p1_name=src|p2_type=integer|p2_name=index
|func=llList2Vector|return_type=vector|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
|return_text=that is at {{LSLP|index}} in {{LSLP|src}}.
|return_text=that is at {{LSLP|index}} in {{LSLP|src}}.
Line 12: Line 11:
**A true typecast will solve this: ([[vector]])[[llList2String]](src, index);
**A true typecast will solve this: ([[vector]])[[llList2String]](src, index);
***Unfortunately, if it was already a vector type, using [[llList2String]] will cause the decimal values to be truncated to six decimal places.
***Unfortunately, if it was already a vector type, using [[llList2String]] will cause the decimal values to be truncated to six decimal places.
***When using ([[vector]])[[llList2String]](src, index), note that spaces are automatically added after the colons. When received by a [[listen]], make sure NOT to parse by spaces.
***In any string representation of a vector such as [[llList2String]](src, index), or (string) llList2Vector (src, index), spaces are automatically added after the commas. When received by a [[listen]], make sure NOT to parse by spaces.


|constants
|constants
|examples=
|examples=
<lsl>// Best viewed in Chat History (ctrl-h)
<source lang="lsl2">// Best viewed in Chat History (ctrl-h)
default
default
{
{
Line 33: Line 32:
         }
         }
     }
     }
}</lsl>
}</source>
|helpers
|helpers
|also_functions=
|also_functions=

Latest revision as of 10:48, 22 January 2015

Summary

Function: vector llList2Vector( list src, integer index );
0.0 Forced Delay
10.0 Energy

Returns a vector 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_VECTOR is returned.
If the type of the element at index in src is not a vector then ZERO_VECTOR is returned.
Here is a workaround: (vector)llList2String(src, index);

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.
  • When used to typecast from a string it will result in a ZERO_VECTOR
    • A true typecast will solve this: (vector)llList2String(src, index);
      • Unfortunately, if it was already a vector type, using llList2String will cause the decimal values to be truncated to six decimal places.
      • In any string representation of a vector such as llList2String(src, index), or (string) llList2Vector (src, index), spaces are automatically added after the commas. When received by a listen, make sure NOT to parse by spaces.

Examples

// 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) );
        }
    }
}

See Also

Functions

•  llGetListEntryType
•  llList2String

Articles

•  Negative Index

Deep Notes

Signature

function vector llList2Vector( list src, integer index );