LlDetectedVel

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Summary

Function: vector llDetectedVel( integer number );

Returns the vector 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 this function returns <0.0, 0.0, 0.0> and 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]

Important Issues

~ All Issues ~ Search JIRA for related Bugs
   Velocity is reduced to maximum of 200.0m/s on instant of collision and llDetectedVel reports this incorrect value.

Examples

//Tells the name and velocity of all near-by avatars.
default 
{
    state_entry() 
    {
        // Scan once for avatars within a 96 metre radius sphere
        llSensor("", "", AGENT, 96, PI);
    }
    sensor(integer num) 
    {
        // num will initially be 1 or more. When num is 1, the index of the detected avatar will be zero       
        while(num--) 
        {
            llOwnerSay(llDetectedName(num) + " is moving at " + (string)llVecMag(llDetectedVel(num)) + " m/s.");
        }
    }
}

See Also

Articles

•  Detected

Deep Notes

All Issues

~ Search JIRA for related Issues
   Velocity is reduced to maximum of 200.0m/s on instant of collision and llDetectedVel reports this incorrect value.

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 );