llDetectedGrab

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/LSL

DetectedGrab

llDetectedGrab

Summary

Function: vector llDetectedGrab( integer number );

0.0	Forced Delay
10.0	Energy

Returns a vector that is the grab offset of the user touching the object; only works in the touch event.

• integer

number

–

Index of detection information

number does not support negative indexes. Returns <0.0, 0.0, 0.0> if number is out of range or if called from an event other than the touch event.

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]

Examples

<lsl> default {

   state_entry()
   {
       llSetStatus(PRIM_PHYSICS,TRUE);//This allows the object to be "grabbed" and dragged
   }
   touch(integer num_detected)
   {
       llSay(0,(string)llDetectedGrab(0));//Be prepared for a great amount of chatted info.
                                          //The faster you move the mouse while grabbing the object the greater the offset becomes.
                                          //This is not due to the speed but the reaction time of the turn around of the physical prim,
                                          //thus an offset (distance from grab to prim center) is created and measured by this function.
   }

}

</lsl>

See Also

Events

•	touch_start
•	touch
•	touch_end

Functions

•	llPassTouches
•	llSetStatus - STATUS_BLOCK_GRAB	–	Enable / Disable object grabbing

Articles

•	Detected
•	Grab

Deep Notes

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 llDetectedGrab( integer number );