Difference between revisions of "LlDetectedVel"

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m (formatted example)
m (or avatar)
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|sort=DetectedVel|func=llDetectedVel|return_type=vector
|sort=DetectedVel|func=llDetectedVel|return_type=vector
|p1_type=integer|p1_name=number
|p1_type=integer|p1_name=number
|func_footnote=Returns {{LSLG|ZERO_VECTOR|<0.0, 0.0, 0.0>}} if '''number''' is not valid sensed object.
|func_footnote=Returns {{LSLG|ZERO_VECTOR|<0.0, 0.0, 0.0>}} if '''number''' is not valid sensed object or avatar.
|func_desc
|func_desc
|return_text=that is the velocity of {{LSLGC|Detected|detected}} object '''number'''.
|return_text=that is the velocity of {{LSLGC|Detected|detected}} object or avatar '''number'''.
|spec
|spec
|caveats
|caveats

Revision as of 10:17, 10 August 2009

Summary

Function: vector llDetectedVel( integer number );

Returns a vector that is the velocity of detected object or avatar number.

• integer number Index of detection information

number does not support negative indexes. Returns <0.0, 0.0, 0.0> if number is not valid sensed object or avatar.

Specification

llDetected* functions only work if called from within Detection events (collision, collision_start, collision_end, sensor, touch, touch_start, touch_end) or in functions called by Detection events. They will fail silently and return unusable values if called during other events.

Caveats

  • If number is out of bounds the script continues to execute without an error message.
  • Events that enable the llDetected* functions always return at least one detected item.
    • Detection events are not raised if there is nothing detected.[1]
    • The detection event's items detected parameter is initially never less than 1.[2]
All Issues ~ Search JIRA for related Bugs

Examples

<lsl> //Tells the name and velocity of all near-by avatars. default {

    state_entry() {
         llSensor("", "", AGENT, 10000, 10000);
    }
    sensor(integer num) {
         integer i = 0;
         while (i < num) {
              llOwnerSay(llDetectedName(i) + " is moving at " + (string)llVecMag(llDetectedVel(i)) + " m/s.");
              ++i;
         }
    }

}

</lsl>

See Also

Articles

•  Detected

Deep Notes

Search JIRA for related Issues

Footnotes

  1. ^ The exception is no_sensor but it doesn't enable llDetected* functions.
  2. ^ Like all event parameters, the user can overwrite the initial value.

Signature

function vector llDetectedVel( integer number );